CN215198502U - Oil sludge sand soaking and screening integrated oil removing equipment and system - Google Patents

Abstract

The utility model relates to an oil sludge sand bubble washes screening integral type deoiling equipment and system, deoiling equipment includes horizontal cylinder and vertical knockout drum, be equipped with spiral copying board after to in the past on the inner wall of cylinder, the section is washed for the bubble to the front portion of cylinder, and the rear portion is the screening section, and the two is connected through the conic section, and the diameter of screening section is less than the diameter that the section was washed to the bubble, it has the inside and outside through-hole that runs through to gather on the section of thick bamboo wall of screening section, the screening section inserts the knockout drum, the cylinder is equipped with rotation actuating mechanism, is equipped with in the knockout drum in the past to the decurrent material conveyer trough of hypsokinesis, is located the below of screening section. The oil removing system comprises a plurality of oil removing devices which are sequentially connected in front and back. The utility model discloses have the bubble of material concurrently and wash, screening and ultrasonic treatment function, can carry out different deoiling to the solid matter of equidimension not in the material respectively and handle, can be fast, effectual clean and discharge respectively or collect with the oil sludge sand and production, domestic waste go up adnexed greasy dirt.

Description

Oil sludge sand soaking and screening integrated oil removing equipment and system

Technical Field

The utility model relates to a screening integral type deoiling equipment and system are washed to oil sludge sand bubble belongs to petrochemical equipment field.

Background

In the process of oil exploitation and processing, a large amount of oil sludge sand is generated, and nearly 60 ten thousand tons of oil enter the environment in each large oil field in China every year, so that the oil sludge sand pollutes soil, underground water, rivers and oceans. The oil field oil sludge has complex components, contains a large amount of petroleum hydrocarbon, germs, benzene series and the like, has serious pollution to the environment and great harm to human bodies if being not treated and randomly stacked, and is listed in a dangerous waste record in national hazardous waste records HW08 issued from 8.1.2016. A large amount of domestic and production wastes are usually mixed in oil field oil sludge, the difficulty is increased for oil sludge treatment, one traditional device cannot simultaneously play a role in cleaning and separating the oil sludge, harder screws, reinforcing steel bars, stones and the like and softer gloves, snakeskin bags, rough grass and the like in the domestic and production wastes need to be cleaned and separated for multiple times by adopting different devices, the efficiency is lower, and a medicament is usually required to be added in the cleaning process, so that secondary pollution is easily caused to the environment or subsequent treatment processes and devices are increased.

SUMMERY OF THE UTILITY MODEL

For overcoming prior art's above-mentioned defect, the utility model provides an oil sludge sand bubble washes screening integral type deoiling equipment and system has the bubble of oil sludge sand to wash, screen and ultrasonic treatment function together concurrently, can wash and discharge or collect respectively with adnexed greasy dirt on oil sludge sand and production, domestic waste.

The utility model discloses realize above-mentioned purpose's technical scheme is: the utility model provides an oil sludge sand bubble washes screening integral type deoiling equipment, includes horizontal cylinder and vertical knockout drum, be equipped with spiral material copying plate after to in the past on the inner wall of cylinder, the section is washed for the bubble to the front portion of cylinder, and the rear portion is the screening section, the bubble wash the section with the screening section passes through the conic section and connects, the diameter of screening section is less than the diameter that the section was washed to the bubble, it has the through-hole that runs through inside and outside as the sieve mesh to gather on the section of thick bamboo wall of screening section, the through-hole is diamond-shaped hole, the cylinder passes the lateral wall of knockout drum, with the knockout drum rotates to be connected, the screening section is located in the knockout drum, the cylinder is equipped with and is used for driving its pivoted rotation actuating mechanism, be equipped with the material conveyer trough in the knockout drum, the material conveyer trough sets up in the past to hypsokinesis slant, is located the below of screening section.

The position and the size of the material conveying groove are designed to ensure that all materials (undersize materials) under the sieving section fall into the material conveying groove, the rear part of the material conveying groove is beyond the rear end of the sieving section, and a section of the rear part beyond the sieving section is arranged in the horizontal projection direction, so that all the conveyed materials are subjected to ultrasonic treatment, and stripped oil is suspended on the upper part of the material flow, and then the floating oil is led out independently.

For example, the material conveying trough feeding end (front end) is positioned right below the front end of the screen section, the width of the material conveying trough is not less than the diameter of the screen section, and the projection length of the material conveying trough on the horizontal plane is greater than the projection length of the screen section on the horizontal plane.

The spiral rotating direction of the shoveling plate is the same as the rotating direction of the roller (the rotating direction of pushing the materials forward when the roller rotates), the shoveling plate is preferably made of angle steel, the outer edge of one straight edge of the angle steel is fixedly connected to the inner wall of the roller, and the outer edge of the other straight edge of the angle steel faces the rotating direction of the roller.

The through holes (screen holes of the screen sections) are regularly arranged on the wall of the screen section in a longitudinal and transverse mode, and further, the rhombic holes in any adjacent row on the wall of the screen section are arranged in a staggered mode so as to improve the aperture ratio.

The rotary driving mechanism can be a riding wheel transmission mechanism, the riding wheel transmission mechanism comprises a driving riding wheel, a driven riding wheel and an annular wheel fixedly arranged on the outer wall of the roller along the circumferential direction, the diameters of the driving riding wheel and the driven riding wheel are the same, the wheel surfaces of the driving riding wheel and the driven riding wheel are opposite, the driving riding wheel and the driven riding wheel are arranged on a riding wheel support through bearings and the like, annular grooves are formed in the wheel surfaces of the driving riding wheel and the driven riding wheel, the width of each annular groove is matched with the width of the wheel surface of the annular wheel, the outer edge of the annular wheel is located in the annular grooves of the driving riding wheel and the driven riding wheel, and the driving riding wheel is provided with a motor for driving the driving riding wheel to rotate.

The rotation driving mechanism can also be a belt wheel transmission mechanism or a gear transmission mechanism.

Preferably, the soaking section is provided with a first steam spray pipe, and the first steam spray pipe in the soaking section is provided with a steam nozzle or a steam outlet.

Furthermore, the first steam spray pipe comprises a first steam inlet pipe and a plurality of semicircular branch pipes, the first steam inlet pipe extends into the soaking section from the rear end of the roller, the semicircular branch pipes are located in the soaking section and located below the first steam inlet pipe, the plane where the semicircular branch pipes are located is perpendicular to the axis of the roller, two ends of each semicircular branch pipe are respectively connected with the first steam inlet pipe through straight pipes, a gap is reserved between each semicircular branch pipe and the inner wall of the soaking section, the number of the steam nozzles or the number of the steam outlets are multiple, and the steam nozzles or the number of the steam outlets are uniformly distributed on the pipe wall of each semicircular branch pipe, which faces the direction of the first steam inlet pipe.

Preferably, the screening section is provided with a washing water pipe, the washing water pipe positioned in the screening section is provided with a washing water nozzle or a washing water outlet, and the washing water pipe can penetrate through the rear end of the roller and extend into the screening section.

The number of the washing water nozzles or washing water outlets is usually a plurality, and the washing water nozzles or washing water outlets are evenly distributed on the section of the washing water pipe which is positioned in the sieve section at equal intervals.

Preferably, a second steam spray pipe located above the screening section is arranged in the separation tank, and a steam nozzle or a steam outlet facing the screening section is arranged on the second steam spray pipe.

Furthermore, the second steam spray pipe comprises a second steam inlet pipe and a plurality of arc-shaped branch pipes, the second steam inlet pipe extends into the separating tank from the outside of the separating tank, the second steam inlet pipe is connected with the second steam inlet pipe, the plane where the arc-shaped branch pipes are located is perpendicular to the axis of the roller, the radian of the arc-shaped branch pipes is preferably the same as the circumferential radian of the screening sections, the number of the steam nozzles or the steam outlets is multiple, and the steam nozzles or the steam outlets are uniformly distributed on the pipe walls of the arc-shaped branch pipes facing the screening sections.

Preferably, the front end of section is washed to the bubble is equipped with the cylinder feed inlet, the rear end of screening section is equipped with conical cylinder discharge gate, be equipped with the large granule material export of seting up downwards on the jar wall (usually the back wall) of knockout drum, the cylinder discharge gate is located directly over the large granule material export, the top of knockout drum is equipped with the gas vent, and the bottom is equipped with the drain.

Preferably, the tank bottom inboard of material conveyer trough is equipped with one or more ultrasonic vibration stick, ultrasonic vibration stick is followed the extending direction of material conveyer trough, with the length direction of material conveyer trough is the same (basically the same or the technology is the same), and is a plurality of ultrasonic vibration stick is followed the width direction equidistant evenly distributed of material conveyer trough.

Preferably, the material conveyer trough is equipped with the striker plate, the width of striker plate with the groove width of material conveyer trough cooperatees (allows its relative cell wall of part at the inslot to move, and avoids as far as possible and the clearance between the cell wall is too big to realize effectively blockking the material), installs on the inner wall of knockout drum, be located the top of material conveyer trough bottom, with the knockout drum removes the cooperation, the face (positive face) orientation of striker plate the inslot of material conveyer trough comes the material direction, and its bottom is located in the material conveyer trough, with leave the clearance that constitutes material passageway between the tank bottom of material conveyer trough, the striker plate is equipped with height adjusting mechanism.

Height adjusting mechanism can connect including perpendicular soon locking bolt on the face of striker plate, locking bolt is located just stretch out on the back face of striker plate outside the knockout drum, be equipped with on the jar wall of knockout drum and supply locking bolt gliding vertical chute from top to bottom (the width of vertical chute is greater than the diameter of the screw rod of locking bolt is less than the diameter of the head of locking bolt, through slide from top to bottom in the vertical chute locking bolt can adjust the height of striker plate, behind the altitude mixture control to suitable position of striker plate, screw locking bolt realizes right the fixing of striker plate. The inner wall of the separating tank can be provided with a vertical guide rail which plays a guiding role in the material baffle. The height adjustment mechanism may also be any suitable prior art manual or automatic height adjustment mechanism, such as a chain drive or a cylinder drive.

Preferably, the material conveying groove is provided with a matched oil receiving groove, the oil receiving groove is fixedly arranged on the inner wall of the separating tank and is inserted into the material conveying groove from top to bottom, an interval is reserved between the bottom surface of the oil receiving groove and the bottom of the material conveying groove, and the direction of the oil receiving groove is towards the wall of the groove in the material conveying groove, which is in the material coming direction, and is lower than the side wall of the material conveying groove. The oil receiving groove is used for collecting floating oil on materials conveyed in the material conveying groove, and the oil receiving groove can be provided with an oil outlet pipe extending to the outer side of the material conveying groove and used for guiding out the floating oil collected in the oil receiving groove.

The oil sump may typically be provided with a height adjustment mechanism or a height adjustment structure. The height adjusting mechanism of the oil receiving tank can adopt any suitable existing technology, for example, the height adjusting mechanism is the same as or similar to the height adjusting mechanism of the striker plate.

A kind of oil sludge sand soaking and washing screening integrated oil removing system, including a plurality of oil removing equipments connected in turn (refer to the sequence of the front and back in the craft or the sequence of the front and back in the material treatment, the spatial layout of each oil removing equipment can be set according to the actual need), the oil removing equipment adopts any kind of oil sludge sand soaking and washing screening integrated oil removing equipment of the utility model, any adjacent two of the oil removing equipment, in the separating tank of the preceding oil removing equipment, there are longitudinal (back and forth) interfaces on the back wall, the front end of the cylinder of the following oil removing equipment extends to the longitudinal interface on the separating tank of the preceding oil removing equipment, and is connected with the corresponding longitudinal interface in a rotating way, the soaking and washing section of the following oil removing equipment is lower than the screening section of the preceding oil removing equipment, the lower end of the material conveying groove of the preceding oil removing equipment extends to the cylinder feed inlet of the following oil removing equipment, the lower end of a feeding pipe of the system extends into a roller feeding hole of the foremost oil removing equipment, a discharging hopper of the system is arranged at the lower rear part of a separating tank of the rearmost oil removing equipment, a discharging hole of the system is arranged at the bottom end of the discharging hopper, and the lower end of a material conveying groove of the rearmost oil removing equipment extends into the discharging hopper of the system.

Preferably, the through-holes of the screening section of the drum of the following degreasing device are smaller than the through-holes of the screening section of the drum of the preceding degreasing device, so as to realize multi-stage screening.

Preferably, the feed pipe inclines the setting from the past to the back, and its front end is connected with the energy dissipation case, the energy dissipation case is equipped with the feed inlet, be equipped with the sparge water import on the front end pipe wall of feed pipe.

The utility model has the advantages that:

1. the utility model discloses utilize solid particle's specific surface area size and the relevant characteristics of clean difficult and easy degree, carry out different deoiling respectively to the solid matter of equidimension in the material and handle, can be fast, effectual clean the oil sludge sand with production, domestic waste go up adnexed greasy dirt, solved effectively that the oil sludge sand that mixes under the prior art has production, domestic waste because the difference of specific surface area size is difficult to clean the greasy dirt and reach the problem of unified cleaning standard. Especially, the materials with small particle size (the undersize materials of the screen segments of all levels of oil removing equipment, usually fine oil sludge sand) are subjected to multistage soaking, screening and ultrasonic treatment, so that the oil stains attached to the fine oil sludge sand can be effectively cleaned, the oil stains are discharged up to the standard, and the technical problem that the oil stains attached to the fine oil sludge sand are difficult to clean or separate is solved.

2. The utility model discloses have the bubble of oil sludge sand concurrently and wash, screening and ultrasonic treatment function, can wash oil sludge sand and production, domestic waste go up adnexed greasy dirt and clean and discharge respectively in an equipment or one set of system (multistage bubble is washed and multistage screening), make oil sludge sand and production, domestic waste's deoiling process need not to transport between different equipment, can effectively reduce the deoiling process, practice thrift the deoiling time, reduce the deoiling energy consumption, improve deoiling efficiency.

3. The utility model discloses a setting of copying board the rotation in-process of cylinder both can promote the material and advance, can make the material again the dwell time in cylinder (mainly indicate the bubble to wash the section) is controllable (through adjusting the rotational speed control of cylinder) can also be copied the material to improve the bubble of material and wash deoiling effect.

4. The utility model discloses a through-hole on the screen segment adopts the diamond hole, can effectively avoid the material will the stifled dead condition of through-hole takes place, even the material blocks up the through-hole, because the diamond structure of through-hole, the four corners department of rhombus also can have the space, does not influence flush water and greasy dirt in the screen segment flow or reduce to the influence that flush water and greasy dirt in the screen segment flow.

5. The utility model discloses can pass through first steam spray tube to bubble is washed and is let in steam in the section, and the in-process both can the heating material washed at the bubble of material, can be at the material that rolls under the injection of steam again to increase the solid collision within a definite time of oil, impel the oil phase to break away from the solid surface, improve the bubble and wash the effect.

6. The utility model discloses can pass through second steam spray tube to sieve segmentation's top is regularly sprayed steam, and the heating is washed sieve segmentation makes adnexed fatlute and jam on the sieve segmentation the material of through-hole drops, guarantees sieve segmentation's screening effect.

7. The utility model discloses set up ultrasonic vibration stick at the tank bottom inboard of material conveyer trough, utilize the "cavitation" effect that the ultrasonic wave produced to degrease in the transportation process of material, on the one hand, when the ultrasonic wave acted on the material (the solid three-phase mixture of fluid), the production instantaneous negative pressure and instantaneous positive pressure of repetition alternate, in the half cycle of production negative pressure, produce the vacuum cavity in the liquid, liquid steam or the gas that dissolves in the liquid gets into the cavity, form the bubble, then in the half cycle of positive pressure, the bubble is compressed and is ruptured, the instantaneous powerful pressure of production (up to thousands atmospheric pressure) forms the impact force to the solid in the material; on the other hand, the ultrasonic waves can generate obvious reflection action at the heterogeneous interface with different densities, and due to the reflection sound difference, liquid on the interface is stirred violently, so that strong impact force is formed on solids in the materials, and the impact force strongly scours oil stains on the surface of the solids, thereby realizing oil removal. The 'cavitation' effect that adopts the ultrasonic wave to produce degreases, on the one hand can effectual improvement deoiling effect, on the other hand can replace adopting the medicament to carry out the bubble link of washing to the material among the traditional deoiling technique, need not to add the medicament at the bubble of material washing in-process, realize green bubble and wash, avoid causing secondary pollution or increase subsequent processing technology and equipment to the environment, can cooperate with the high temperature that the preorder heating formed in addition, most bubbles that the supersound formed can directly be in the same place with oil diversity group, form better air supporting effect.

8. Deoiling system can carry out the secondary or bubble to the material that the particle diameter is little and wash, sieve and ultrasonic treatment (the quantity of deoiling equipment in the actual conditions setting system according to pending material) to guarantee to arrange the deoiling effect of the different size solid matter in the material, guarantee to arrange qualified up to standard of material, can handle the oiliness rate in the outer solid of arranging to being less than 2% (wt).

9. The material flow in the material conveying groove is effectively blocked by arranging the material baffle plate at the lower part (generally, preferably, a region close to the lower end) of the material conveying groove, the flow area of the corresponding region is controlled by controlling the distance between the material baffle plate and the bottom of the material conveying groove, the height level of the liquid level (the top surface of the material flow) in the material conveying groove is further raised, and the material flow speed in front of the material baffle plate is effectively slowed down; because the material conveying groove is positioned below the screening section of the roller, undersize objects fall into the material conveying groove completely to form stronger collision and impact effects with the material conveying groove and materials in the material conveying groove, oil content (especially larger polymers or agglomerates) attached to the particle surface is effectively stripped through collision, vibration and impact reversing of particulate matters (sand grains), the oil content separation load capacity is reduced for subsequent ultrasonic separation, especially the load capacity of the larger polymers with relatively poorer ultrasonic separation effect is effectively reduced, and the separation effect is effectively improved; owing to can be in certain limit with flow rate control, can eliminate fast and fall the flow disorder and the torrent that lead to because of the material, good laminar flow effect has been guaranteed in the whole, favorable condition is provided for oil content gravity suspension and supersound air supporting, the oil water separation effect at material gliding flow in-process has been guaranteed, because the liquid level is higher than the lower extreme edge of striker plate, make the oil content of suspension on material upper portion can't flow from the passageway of striker plate below, can set up oil content overflow path in the corresponding part of material conveyer trough, for example can collect, hold and carry oil content's oil receiving groove etc. so that draw oil content alone, realize the separation of oil and other materials (the mixture of water and particulate matter).

Drawings

Fig. 1 is a schematic structural view of an embodiment of the oil removing apparatus of the present invention;

FIG. 2 is a schematic cross-sectional view of one embodiment of the soaking section of the present invention;

FIG. 3 is a front view of an embodiment of the first steam nozzle of the present invention;

FIG. 4 is an axial cross-sectional schematic view of an embodiment of the separator tank of the present invention;

FIG. 5 is a top view of an embodiment of the material transfer chute of the present invention;

fig. 6 is a schematic structural view of an embodiment of the oil removal system of the present invention;

fig. 7 is a partial schematic diagram of an embodiment of a feed end of the oil removal system of the present invention;

figure 8 is a top view of an embodiment of the energy dissipater of the present invention.

Detailed Description

Referring to fig. 1-5, the utility model discloses an oil sludge sand soaking and screening integrated oil removing device, which is mainly used for soaking, washing and screening oil sludge sand, production and domestic garbage in oil fields, and cleaning and discharging oil stains attached to the oil sludge sand respectively, and comprises a transverse roller 1 and a vertical separating tank 2, wherein the roller is of a cylindrical structure, the inner wall of the roller is covered with a rolled wear-resistant steel plate or is formed by rolling the wear-resistant steel plate, so as to improve the structural strength and the corrosion resistance, a spiral material copying plate 3 is arranged on the inner wall of the roller from front to back, the roller comprises a soaking and washing section 4 at the front end and a screening section 5 at the rear end, the soaking and washing section is used for soaking and washing materials, the screening section is used for screening the materials and screening small particles in the materials, the diameter of the screening section is smaller than that of the soaking and washing section, and the soaking and washing sections are connected through a conical section (the roller can be an integrally formed structure, or formed by welding multiple sections), through holes 6 penetrating through the inside and outside are densely distributed on the wall of the screening section, the conical section and the screening section are inserted into the separation tank (usually inserted into the upper part of the separation tank) and are connected with the separation tank in a rotating fit manner (for example, can be connected through a bearing), the roller is provided with a rotating driving mechanism for driving the roller to rotate, a material conveying groove 7 is arranged in the separation tank and is positioned under the screening section and obliquely arranged from front to back, the feeding end of the material conveying groove is positioned under the front end of the screening section, the discharging end of the material conveying groove extends out of the separation tank or is positioned in the separation tank, the material conveying groove is used for receiving and conveying small-particle materials screened from the screening section, the width of the material conveying groove is not less than the diameter of the screening section, and the projection length of the material conveying groove on the horizontal plane is greater than the projection length of the screening section on the horizontal plane, so that all small particulate material sifted from within the sifting section may be received.

The spiral rotating direction of the shoveling plate is the same as the rotating direction of the roller, so that the materials are pushed to advance in the rotating process of the roller. The retention time of the materials in the roller (mainly referred to as the soaking section) can be controlled by adjusting the rotating speed of the roller, so that the soaking time of the materials can be controlled according to the properties of the materials, and the soaking and oil removing effects are ensured.

The material copying plate is preferably an angle steel, the outer edge of one straight edge of the angle steel is fixedly connected to the inner wall of the roller, and the outer edge of the other straight edge of the angle steel faces to the rotation direction of the roller. So set up the rotation in-process of cylinder, the material is copied to the flitch when soil cave material gos forward, can copy the material up, improves the bubble and washes deoiling effect.

The through holes are preferably rhombic holes, and are arranged on the wall of the screening section in a longitudinal and transverse regular mode. The rhombic holes in any adjacent row on the cylinder wall of the screening section are preferably arranged in a staggered manner, namely the adjacent edges of any two adjacent rhombic holes in any adjacent row on the cylinder wall of the screening section are parallel and opposite, so that the aperture ratio is improved, and the screening efficiency of the screening section on materials is improved.

The rotary driving mechanism can be a riding wheel transmission mechanism 8, the riding wheel transmission mechanism comprises a driving riding wheel, a driven riding wheel and an annular wheel fixedly arranged on the outer wall of the roller along the circumferential direction, the diameters of the driving riding wheel and the driven riding wheel are the same, the wheel surfaces of the driving riding wheel and the driven riding wheel are opposite, the driving riding wheel and the driven riding wheel are arranged on a riding wheel support through bearings at the same height, annular grooves are formed in the wheel surfaces of the driving riding wheel and the driven riding wheel, the width of each annular groove is matched with the width of the wheel surface of the annular wheel, the outer edge of the annular wheel is located in the annular grooves of the driving riding wheel and the driven riding wheel, the driving riding wheel is provided with a motor for driving the driving riding wheel to rotate, and the motor is preferably a variable frequency motor. The driving riding wheel is driven to rotate by the variable frequency motor, the annular wheel and the roller are driven to rotate by the friction force between the driving riding wheel and the annular wheel, the driven riding wheel plays an auxiliary supporting role for the annular wheel and the roller, and the rotating speed of the roller is usually controlled to be 3-10 r/min.

The roller can also be provided with a bearing mechanism 9, the bearing mechanism can adopt the same structure as the riding wheel transmission mechanism, the driving riding wheel and the driven riding wheel are not distinguished, and a motor is not arranged. And a space is reserved between the bearing mechanism and the riding wheel transmission mechanism, and the supporting mechanism mainly plays a role in supporting and assisting in rotating the roller.

Through changing riding wheel drive mechanism and/or the riding wheel (including initiative riding wheel and driven riding wheel) of the equidimension not of supporting mechanism, perhaps through adjusting riding wheel drive mechanism and/or the height of supporting mechanism's riding wheel support can adjust the axial inclination of cylinder makes the rear end of cylinder is less than the front end, from the top down slope backward in the past, helps the transmission of material in its inside, and inclination controls within 5 usually. Of course, the rear end of the roller is higher than the front end of the roller by adjusting the axial inclination angle of the roller, and the roller is inclined from back to front and from top to bottom, so that the transmission speed of the materials from the soaking section to the screening section is reduced, the soaking time of the materials in the soaking section is increased, and the inclination angle is usually controlled within 5 degrees.

One or more of the support mechanisms may be provided depending on the length of the drum.

The rotation driving mechanism can also adopt a belt wheel transmission mechanism, a gear transmission mechanism or other rotation transmission mechanisms suitable in the prior art.

The drum is preferably provided with a first steam nozzle extending into the soaking section from the rear end (usually referred to as a drum outlet), and the section of the first steam nozzle located in the soaking section is provided with a steam nozzle or a steam outlet.

The first steam spray pipe can comprise a first steam inlet pipe 10 and a plurality of semicircular branch pipes 11, the first steam inlet pipe extends into the soaking section from the rear end of the roller along the direction parallel to the axis of the roller, the semicircular branch pipes are positioned in the soaking section (usually positioned at the rear part of the soaking section) and below the first steam inlet pipe, the plane of each semicircular branch pipe is vertical to the axis of the roller, two ends of each semicircular branch pipe are respectively connected with the first steam inlet pipe through straight pipes, the semicircular diameter of each semicircular branch pipe is smaller than the diameter of the roller, the semicircular radian is preferably the same as the circumferential radian of the roller, a gap is reserved between each semicircular branch pipe and the inner wall of the soaking section (the interference between each semicircular branch pipe and the material-catching plate is avoided through reasonable assembly), the number of the steam nozzles or the steam outlets 12 is multiple, the steam nozzles or the steam outlets are preferably the same in number on each semicircular branch pipe. The inlet end of the first steam inlet pipe typically extends out of the separator tank. Through first steam spray tube can to inject steam in the section is washed to the bubble, both can heating material in the bubble of material washes the in-process, can roll the material under the jet action of steam again to increase the collision between oil and solid, impel the oil phase to break away from the solid surface, improve the bubble and wash the effect.

The drum is preferably provided with a flushing water pipe 13 extending from its rear end (usually referred to as the drum outlet) into the screen section in a direction parallel to the axis of the drum, the pipe section of the flushing water pipe located in the screen section being provided with flushing water nozzles or outlets 14. The number of the washing water nozzles or washing water outlets is usually a plurality of nozzles, the nozzles or the washing water outlets are evenly distributed on the section of the washing water pipe which is positioned in the sieve section at equal intervals, and the water inlet end of the washing water pipe usually extends out of the separation tank. The washing water can be introduced into the screening section through the washing water pipe, materials (particularly oversize materials) in the screening section are further cleaned, the discharging standard is guaranteed, and the temperature of the washing water is usually 60-95 ℃.

And a second steam spray pipe is preferably arranged in the separation tank and positioned above the screening section, and a steam nozzle or a steam outlet facing the screening section is arranged on the second steam spray pipe.

The second steam nozzle may include a second steam inlet pipe 15 and a plurality of arc-shaped branch pipes 16, the second steam inlet pipe extends into the separating tank from the outside of the separating tank along the direction parallel to the axis of the drum, a plurality of arc-shaped branch pipes are positioned in the separating tank (above the screening sections) and are respectively connected with the second steam inlet pipe, the plane of each arc-shaped branch pipe is vertical to the axis of the drum, the radian of the arc-shaped branch pipes is preferably the same as the circumferential radian of the screening section, a plurality of steam nozzles or steam outlets 17 are uniformly distributed on the pipe wall of each arc-shaped branch pipe facing the screening section, a plurality of arc-shaped branch pipes are preferably arranged on the second steam inlet pipe at equal intervals, to increase the area of action with the screen section, the number of steam nozzles or steam outlets on each of the curved branch pipes is preferably the same. Through the second steam spray pipe can to the top of sieve section is the injection steam regularly, and the heating is washed the sieve section makes the attached fatlute on the sieve section and the jam the material of through-hole drops, guarantees the screening effect of sieve section.

The first steam nozzle and the second steam nozzle can adopt the same steam source, the pressure of the steam is preferably 0.3-0.6Mpa, and the temperature is preferably 143-.

The front end of section is washed to the bubble is equipped with the cylinder feed inlet, the rear end of sieve segmentation is equipped with the cylinder discharge gate of toper (from the past to back internal diameter convergent), be equipped with the large granule material export 18 of seting up downwards on the jar wall of knockout drum, the large granule material export can earlier to the outside of knockout drum stretches out the downward opening again, the cylinder discharge gate is located directly over the large granule material export, is used for discharging large granule material in the cylinder, the cylinder discharge gate adopts the bell mouth can play the effect of further receiving water, avoids sieve segmentation wall built-up water follows large granule material and discharges, guarantees the quality of large granule material row material. The small-particle material warp the through-hole sieve of screening section goes out to fall extremely in the material conveyer trough, the top of knockout drum is equipped with gas vent 19 for the exhaust, carries out subsequent processing after the combustion gas (containing oil gas) can be collected, and the bottom is equipped with drain 20, is used for discharging the material leaking of material conveyer trough reaches the filth that washes down when cleaning device. In order to ensure that the bottom of the soaking section can have water with a certain height to soak and wash the materials, the roller feed inlet can be set into a conical opening with a gradually reduced inner diameter from back to front, or the inner side of the roller feed inlet is provided with an annular baffle.

The material conveyer trough generally includes the tank bottom and follows the fixed vertical cell wall of locating its left and right sides of length direction of tank bottom, the inboard of tank bottom is preferred to be equipped with a plurality of ultrasonic vibration stick 21, ultrasonic vibration stick's axial with the length direction of material conveyer trough is the same, and is a plurality of ultrasonic vibration stick follows the equidistant evenly distributed of width direction of material conveyer trough. The length of ultrasonic vibration stick can with the length of material conveyer trough is the same, also can with the length of material conveyer trough is different, work as with the length of material conveyer trough is different, arbitrary adjacent two ultrasonic vibration stick is followed the length direction dislocation set of material conveyer trough. The ultrasonic frequency generated by the ultrasonic vibrating rod is preferably 40kHz, and the power is preferably 50W, so that the optimal 'cavitation' oil removing effect is achieved.

The material conveying groove is preferably provided with a material baffle plate 22, the width of the material baffle plate is matched with the groove width of the material conveying groove, the material baffle plate is vertically arranged on the inner wall of the separating tank and located above the material conveying groove, the surface (front surface) of the material baffle plate faces towards the material feeding direction in the groove of the material conveying groove, the bottom end of the material baffle plate is inserted downwards from top to bottom in the material conveying groove, and the material baffle plate is provided with a height adjusting mechanism. Through adjusting the height of striker plate, can adjust the bottom of striker plate with interval between the tank bottom of material conveyer trough to adjust the ejection of compact velocity of flow that is located the material layer of bottom in the material conveyer trough (the striker plate inserts the material layer usually), make the even outflow of material layer to block the outflow of oil layer and water layer, guarantee the ultrasonic wave to the action time of material, guarantee the deoiling effect of "cavitation" effect.

Height adjusting mechanism can connect including perpendicular soon locking bolt on the face of striker plate, locking bolt is located just stretch out on the back face of striker plate outside the knockout drum, be equipped with on the jar wall of knockout drum and supply locking bolt gliding vertical chute from top to bottom (the width of vertical chute is greater than the diameter of the screw rod of locking bolt is less than the diameter of the head of locking bolt, through slide from top to bottom in the vertical chute locking bolt can adjust the height of striker plate, behind the altitude mixture control to suitable position of striker plate, screw locking bolt realizes right the fixing of striker plate. The inner wall of the separating tank can be provided with a vertical guide rail which plays a guiding role in the material baffle. The height adjustment mechanism may also be any suitable prior art manual or automatic height adjustment mechanism, such as a chain drive or a cylinder drive.

The material conveyer trough is preferred to be equipped with oil receiving groove 23, oil receiving groove is fixed to be located on the inner wall of knockout drum, from last inserting downwards in the material conveyer trough, oil receiving groove's bottom surface with leave the interval between material conveyer trough's the tank bottom, do not influence material transmission, oil receiving groove's orientation the cell wall of the inslot material direction of material conveyer trough is less than material conveyer trough's lateral wall. The oil receiving tank is used for collecting floating oil on materials conveyed in the material conveying groove, and can be provided with an oil outlet pipe extending to the outer side of the material conveying groove and used for guiding out the floating oil collected in the oil receiving tank and guiding out the floating oil to the separation tank, so that the sewage outlet is discharged.

The working mode of the oil removing equipment is as follows: the material and its bubble wash water follow the cylinder feed inlet gets into the bubble washes the section, and the material is in the bubble is washed the section and is soaked and wash, and the bubble is washed the in-process, and the material is in under the effect of copying board backward transmission and copying, simultaneously through first steam spray tube to inject steam heating and material that rolls in the bubble washes the section, the material after the bubble is washed carry to carry out solid-liquid separation in the sieve section, under the effect of copying board, large granule material (including large granule sand, stone, production and domestic waste etc.) follow the cylinder discharge gate discharges the cylinder, falls into the large granule material export of knockout drum and discharges, and small granule material and water, oil follow the through-hole sieve of sieve section is fallen into in the material conveyer trough, through material conveyer trough transmit to next order deoiling equipment or sequent treatment facility (under the prior art, sequent treatment facility after the oil sludge deoiling), not in the protection scope of the utility model discloses an in the screening process of screening section to the material, through wash pipe to let in the sparge water in the screening section, it is right material (especially the material of oversize) in the screening section further washs, guarantees that the ejection of compact is up to standard the in-process of material conveyer trough transported substance material passes through ultrasonic vibration stick produces the ultrasonic wave, utilizes ultrasonic "cavitation" effect to further deoil the material, regularly passes through second steam spray tube lets in steam right the screening section washs and clear stifled. After the materials are soaked and screened, oil stains, waste water, oil gas and the like are discharged from corresponding discharge ports and collected for subsequent treatment.

Referring to fig. 6 and 7, the present invention further discloses a screening integrated oil removing system for washing oil sludge sand, which comprises a plurality of oil removing devices connected in sequence from front to back, wherein the oil removing devices adopt any one of the oil sludge sand screening integrated oil removing devices of the present invention, and any two of the oil removing devices adjacent to each other are connected in a rotating fit manner (for example, connected by a bearing) that the front end of the washing section of the back oil removing device is inserted into the separating tank of the front oil removing device from back to front (usually inserted into the lower portion of the separating tank of the front oil removing device), the washing section of the back oil removing device is lower than the screening section of the front oil removing device, the discharge end of the material conveying groove of the front oil removing device is inserted into the roller feed port of the back oil removing device (adopting a tapered port with a tapered inner diameter from back to front), a plurality of among the deoiling equipment, the knockout drum at its place is stretched out to the discharge end that is located the material conveyer trough of rearmost deoiling equipment, perhaps is located the bottom of the knockout drum of rearmost deoiling equipment and still is equipped with bin outlet 24, and the discharge end of its material conveyer trough is located the top of bin outlet for discharge the tiny particle material after the deoiling.

In any two adjacent oil removing devices, the through hole in the screening section of the oil removing device positioned at the back is smaller than the through hole in the screening section of the oil removing device positioned at the front, so that multi-stage screening is realized. For example, taking the case that the oil removing system comprises two oil removing devices, the long diagonal of the diamond-shaped hole on the screening section of the oil removing device positioned at the front is 10mm long, and the long diagonal of the diamond-shaped hole on the screening section of the oil removing device positioned at the rear is 3mm long.

A plurality of among the deoiling equipment, the deoiling equipment that is located foremost is equipped with inlet pipe 25, the inlet pipe inclines downwards to insert the cylinder feed inlet from the past backward, cylinder feed inlet and male can be equipped with labyrinth retaining ring 26 between the inlet pipe, prevent that the material from returning from the cylinder feed inlet and overflowing, the front end of inlet pipe can pass through flange joint energy dissipation case 27, the energy dissipation case is equipped with feed inlet 28, and the oil sludge sand and the production of oil field, domestic waste follow the feed inlet gets into the deoiling system, the energy dissipation case is used for eliminating the kinetic energy of supplied materials, makes the material be in dwell time in the cylinder is controllable, guarantees to steep and washes, the screening effect. Be equipped with washing water inlet 29 on the front end pipe wall of inlet pipe, be used for to let in the bubble in the section is washed to the bubble and wash the water, the supplied materials of elimination kinetic energy can slide in the effect of sparge water in the section is washed to the bubble.

Referring to fig. 8, the energy dissipation box includes a cylindrical housing, a strip-shaped socket is formed on the top surface of the housing, a baffle 30 is inserted into the socket in a sliding manner, the feed port is formed in the side wall of the housing, the axis of the feed port is perpendicular to the baffle, and the bottom end of the housing is open and serves as a discharge port of the energy dissipation box. The baffle is used for blocking feeding from the vertical direction of the feeding port and eliminating kinetic energy, the baffle is convenient to replace quickly after being damaged by adopting a pull-plug type structure and can be replaced within 3-5 minutes generally, and the bottom end of the shell is connected with the feeding end of the feeding pipe through a flange so as to facilitate the disassembly and replacement of the energy dissipation box.

Taking an oil removal system comprising two oil removal devices as an example, the operation method of the oil removal system is as follows: before the material is introduced from the feed inlet of the energy dissipation box, the rotary driving mechanisms of the rollers of the two oil removing devices are started, the flushing water is introduced through the flushing water port on the feeding pipe and the flushing water is introduced through the flushing water pipes of the two oil removing devices, the first steam spray pipe through two deoiling equipment lets in steam, observation system operates steadily after, let in the material from the feed inlet of energy dissipation case, the adjustment is located the striker plate of preceding deoiling equipment, make the material that is located the material conveyer trough of preceding deoiling equipment evenly flow, the adjustment is located the striker plate of hou mian deoiling equipment, make the material that is located the material conveyer trough of hou mian deoiling equipment evenly flow, the oil slick of two material conveyer troughs is collected through respective oil receiving groove and is discharged, through the bubble washing, the large granule material after the screening, the tiny particle material, the greasy dirt, waste water, oil gas etc. collect from corresponding export discharge and carry out subsequent processing. And steam is introduced into the second steam spray pipes of the two oil removing devices for about half an hour every day, respective screening sections are cleaned and blocked, and the baffle of the energy dissipation box is replaced once every week, so that the energy dissipation effect is ensured.

Claims (10)

1. an oil sludge sand soaking, washing and screening integrated degreasing equipment is characterized in that comprising a horizontal drum and a vertical separation tank, and the inner wall of the drum is provided with a helical copying plate from front to back, The front part of the drum is a bubble washing section, the rear part is a screen section, the bubble washing section and the screen section are connected by a cone section, and the diameter of the screen section is smaller than the diameter of the bubble washing section, The cylindrical wall of the sieve section is densely covered with through-holes that are used as sieve holes and penetrate through the inside and outside. The through-holes are diamond-shaped holes. The screen segment is located in the separation tank, and the drum is provided with a rotary drive mechanism for driving the rotation of the drum. The separation tank is provided with a material conveying groove, and the material conveying groove is inclined downward from front to back. located below the screen section. 2. The oil sludge sand soaking and screening integrated degreasing equipment as claimed in claim 1, characterized in that the soaking and washing section is provided with a first steam nozzle, and the first steam located in the soaking and washing section The nozzle is provided with a steam nozzle or a steam outlet. 3. The oil sludge sand soaking, washing and screening integrated oil removal equipment as claimed in claim 2, characterized in that the screen section is provided with a flushing water pipe, and the flushing water pipe located in the screen section is provided with a flushing water pipe. Water nozzle or flush water outlet. 4. The oil sludge sand soaking, washing and screening integrated degreasing equipment as claimed in claim 3, characterized in that the separation tank is provided with a second steam nozzle located above the screen section, and the second steam The nozzles are provided with steam nozzles or steam outlets facing the screen sections. 5. The oil sludge sand soaking, washing and screening integrated degreasing equipment according to claim 4, characterized in that the front end of the soaking and washing section is provided with a drum feed port, and the rear end of the screen section is provided with a cone There is a large particle material outlet opened downward on the rear wall of the separation tank, the drum discharge port is located directly above the large particle material outlet, and the top of the separation tank is provided with The exhaust port is provided with a sewage outlet at the bottom. 6. The oil sludge sand soaking and screening integrated degreasing equipment according to claim 1, 2, 3, 4 or 5, characterized in that one or more ultrasonic vibrating rods are arranged on the inner side of the groove bottom of the material conveying groove The extension direction of the ultrasonic vibrating bar is the same as the length direction of the material conveying slot, and a plurality of the ultrasonic vibrating bars are evenly distributed at equal intervals along the width direction of the material conveying slot. 7 . The oil sludge sand soaking, washing and screening integrated degreasing equipment according to claim 6 , wherein the material conveying groove is provided with a baffle plate, and the width of the baffle plate is the same as that of the groove of the material conveying groove. 8 . It is installed on the inner wall of the separation tank and is located above the bottom of the material conveying trough. In the material conveying trough, a gap forming a material channel is left between the groove bottom of the material conveying trough, and the baffle plate is provided with a height adjusting mechanism. 8. An oil sludge sand soaking, washing and screening integrated degreasing system, characterized in that it comprises several degreasing equipments connected in sequence before and after, and the degreasing equipment adopts the oily sludge sand described in any one of claims 1-7. For the integrated degreasing equipment of soaking, washing and screening, in any two adjacent degreasing equipments, a longitudinal interface is provided on the rear wall of the separation tank of the former degreasing equipment, and the front end of the drum of the latter degreasing equipment is provided. It extends into the longitudinal interface on the separation tank of the preceding oil removal device, and is rotatably connected with the corresponding longitudinal interface. The lower end of the material conveying trough of the degreasing equipment extends into the drum feed port of the subsequent degreasing equipment, the lower end of the feed pipe of the system extends into the drum feed port of the foremost degreasing equipment, and the discharge hopper of the system is set at It is located in the rear lower part of the separation tank of the last degreasing equipment, and the bottom end is provided with a discharge port of the system. The lower end of the material conveying trough located in the last degreasing equipment extends into the discharge hopper of the system. 9 . The oil sludge sand soaking and screening integrated degreasing system according to claim 8 , wherein the through holes of the screen section of the drum of the subsequent degreasing equipment are smaller than the screen of the drum of the preceding degreasing device. 10 . Segmented vias. 10. The integrated oil removal system for sludge washing, washing and screening according to claim 9, characterized in that the feeding pipe is inclined from front to back, and the front end thereof is connected to an energy dissipation box, and the energy dissipation box is provided with an inlet. The feeding port is provided with a flushing water inlet on the pipe wall at the front end of the feeding pipe.

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