CN115751916A - A Rapid Separation Device of Oily Drilling Cuttings Sheet Laser Beam - Google Patents

Abstract

The invention discloses a sheet laser beam rapid separation device for oil-containing drilling cuttings, wherein the bottom end of a storage mechanism is communicated with a discharge straight pipe, the discharge straight pipe vertically extends and extends into a separation box, transmission belts arranged below the bottom end of the discharge straight pipe at intervals are arranged in the separation box, and the transmission belts horizontally extend along the direction far away from the discharge straight pipe; be equipped with slice laser beam generator on the separator box, slice laser beam generator launches the facula that is used for the oil water evaporation separation in the oiliness drill chip, the facula covers on the region that the transmission band is used for accepting the oiliness drill chip, the oiliness drill chip falls to the transmission band in the separator box gradually through ejection of compact straight tube, because the facula that slice laser beam generator launches covers on the region that the transmission band is used for accepting the oiliness drill chip, make oil and water in the oiliness drill chip absorb sufficient evaporation latent heat through rapid heating, it converts to the gaseous state to reach its required boiling point mutually, oil phase and aqueous phase are got rid of and are accomplished in the oiliness drill chip, solid-liquid separation in the quick realization drill chip.

Description

A Rapid Separation Device of Oily Drilling Cuttings Sheet Laser Beam

technical field

The invention relates to the field of processing devices for oily drilling cuttings, in particular to a rapid separation device for sheet-shaped laser beams of oily drilling cuttings.

Background technique

The higher the oil content in the waste oily cuttings in the well site, the more toxic it is. Oil and surfactants are the main costs of oil-based drilling fluids, and these substances can be recovered and reused through appropriate processes to reduce costs. It is difficult to dispose of waste oily drilling cuttings. Because of its high oil content and high solid content, it is difficult to dispose of waste oily drilling cuttings. The waste oily drilling cuttings should be deoiled and solid-liquid separated before being disposed of in a compliant manner.

At present, the treatment of waste oily drilling cuttings mainly includes oil removal, reduction and reduction of environmental hazards. In order to reduce disposal costs such as transportation, materials, and equipment investment, source reduction treatment of waste oily drilling cuttings is the most direct and effective means of reducing costs. Waste oily drilling cuttings have complex components, stable components and not easy to break the gel, so it is extremely difficult to deal with them. At present, domestic and foreign waste oily drilling cuttings treatment technologies mainly include centrifugation, reinjection, microbial degradation, incineration, heat treatment and solvent extraction. How to provide a processing equipment that can quickly gather energy in a short period of time, and has the advantages of strong adaptability, thorough oil removal effect (residual TPH content is less than 1%), small footprint, and all-weather working ability has quickly become a solution. Oily solid waste pollution is an urgent problem to be solved now. In the process of thermal analysis treatment of oily drill cuttings, factors such as safety risks, environmental protection costs, economy and timeliness in production should be considered, so how to use thermal analysis treatment technology reasonably and efficiently to form a thermal analysis treatment device also needs to be solved at present. The problem.

Contents of the invention

The object of the present invention is to provide a kind of oily drill cuttings flake laser beam rapid separation device, to solve the above-mentioned problems in the prior art, the light spot generated by the flake laser beam generator is placed on the oily drill cuttings on the conveyor belt. Fast and uniform heating can efficiently and quickly realize solid-liquid separation in cuttings, and the device structure is simple and miniaturized. At the same time, the control method of the sheet laser beam rapid separation technology is clear, and its control accuracy is also high.

In order to achieve the above object, the present invention provides the following scheme: The present invention provides a rapid separation device for sheet-shaped laser beams containing oily drill cuttings, which includes a storage mechanism for containing oily drill cuttings and a separation box located below the storage mechanism. The bottom end of the storage mechanism is connected with a discharge straight pipe, and the discharge straight pipe extends vertically and extends into the separation box, and the separation box is provided with intervals at the bottom of the discharge straight pipe. The conveyor belt below the end, the conveyor belt extends horizontally along the direction away from the discharge straight pipe; the separation box is provided with a sheet-shaped laser beam generator, and the sheet-shaped laser beam generator emits The light spot of oil-water evaporation and separation in oil-bearing drill cuttings, the light spot covers the area of the conveyor belt for receiving oil-bearing drill cuttings; the top of the separation box is connected to the separation box for drawing oil vapor and water vapor out of the separation box exhaust pump; the discharge end of the conveyor belt is provided with a slag discharge pipe for accepting and collecting oily drill cuttings, and the slag discharge pipe extends out of the separation box and is provided with a slag discharge pump.

Preferably, the sheet laser beam generator includes a laser, a spherical mirror group for converging the light spot emitted by the laser into a point light source, and a cylindrical mirror for converting the point light source into a rectangular light spot, and the spherical mirror group includes A plurality of spherical mirrors with different optical powers, each of the spherical mirrors and the cylindrical mirrors are sequentially arranged on the outgoing optical path of the laser, and the optical power of each of the spherical mirrors increases sequentially along the outgoing optical path.

Preferably, the cross-section of the straight discharge pipe is a rectangular structure adapted to the shape of the rectangular light spot.

Preferably, the first blower and the second blower with adjustable wind speed are communicated with the straight discharge pipe, and the first blower and the second blower are distributed along the vertical direction and move toward the inside of the straight discharge pipe. Water vapor at 120°C is blown out in the opposite direction.

Preferably, the separation box is provided with a third blower and a fourth blower, the third blower is located at the input side of the conveyor belt, the fourth blower is located at the bottom of the conveyor belt, and the third blower Both the air blower and the fourth air blower are directed towards the area of the conveyor belt for receiving oily cuttings.

Preferably, several exciters are provided under the conveying part of the conveyor belt, and the exciters include an exciter body fixedly installed in the separation box, an exciter body installed on the plate, and the excitation plate is attached to the bottom surface of the conveying part.

Preferably, the exhaust pump is connected with a recovery mechanism for separating and treating oil vapor and water vapor, and the recovery mechanism includes a condenser connected at the outlet of the exhaust pump, and the liquid outlet of the condenser is connected to a useful For a centrifuge that separates oil from water, the gas outlet of the condenser is connected to a waste gas recovery box for collecting untreated clean waste gas.

Preferably, the outlet of the slag discharge pipeline is connected with a cooling box for cooling oily cuttings, and the outlet of the cooling box is provided with a detector for detecting the effect of separating oily cuttings.

Preferably, the outlet of the detector is connected in parallel with a waste residue collection box and a return pipe, and the return pipe is connected with the storage mechanism.

Preferably, the storage mechanism includes a cuttings box, the bottom end of the cuttings box is connected with the discharge straight pipe, and a vertically extending stirring shaft is installed in the cuttings box, and the stirring shaft There is a stirring piece on the top for stirring the oily drill cuttings evenly.

Compared with the prior art, the present invention has achieved the following technical effects:

First, the bottom end of the material storage mechanism is connected with a straight discharge pipe, which extends vertically and extends into the separation box, and the separation box is provided with a conveyor belt that is arranged at intervals below the bottom of the straight discharge pipe. The conveyor belt extends horizontally along the direction away from the straight discharge pipe; the separation box is equipped with a sheet-shaped laser beam generator, and the sheet-shaped laser beam generator emits a light spot for evaporating and separating oil and water in oily drill cuttings. The light spot covers the The conveyor belt is used to accept oily drill cuttings; the top of the separation box is connected with an exhaust pump for extracting oil vapor and water vapor out of the separation box; the discharge end of the conveyor belt is equipped with a slag discharge for receiving and collecting oily drill cuttings The pipeline and the slag discharge pipeline extend out of the separation box and are equipped with a slag discharge pump. During the separation process, the oily drill cuttings gradually fall to the conveyor belt in the separation box through the discharge straight pipe. The light spots emitted cover the area of the conveyor belt used to receive oily drill cuttings. The oily drill cuttings placed on the conveyor belt are heated quickly and uniformly through the concentrated energy of the light spots, and the oil and water in the oily drill cuttings are quickly heated through rapid heating Absorb enough latent heat of evaporation, the phase reaches its required boiling point and transforms into a gaseous state, and the oil phase and water phase in the oily cuttings are removed, so that the solid-liquid separation in the cuttings can be quickly realized, and the oily cuttings will pass through the conveyor belt after contacting the light spot Conveying drill cuttings that move away from the light spot, new oily drill cuttings gradually fall from the discharge straight pipe and then contact the light spot, forming a working state in which the oily drill cuttings are continuously heated and processed, and the evaporated oil vapor and water vapor are quickly discharged through the exhaust pump Suction the separation box, and the drill cuttings after oil and water separation are transported to one side through the conveyor belt, and quickly flow out of the separation box through the slag discharge pipe and slag discharge pump, avoiding the risk of condensation in the separation box and increasing the risk of recombination with the drill cuttings, ensuring oil content The separation effect of oil-water and solid phase in drill cuttings, and the whole device can continuously separate oil-water from oil-containing drill cuttings, which fully guarantees the treatment efficiency of oil-containing drill cuttings.

Second, the plate laser beam generator includes a laser, a spherical lens group for converging the light spot emitted by the laser into a point light source, and a cylindrical lens for converting the point light source into a rectangular light spot. The spherical mirrors, each spherical mirror and cylindrical mirror are arranged on the exit light path of the laser in turn, and the optical power of each spherical mirror increases along the exit light path, the sheet laser beam generator can shape the light spot emitted by the ordinary laser into a sheet shape The light spot reduces the limitation of the sheet laser source on the laser itself, and the power density distribution in the rectangular light spot generated by the sheet light generator is uniform.

Thirdly, the section of the straight discharge pipe is a rectangular structure that matches the shape of the rectangular spot. When the oily cuttings fall along the straight discharge pipe until the oily cuttings of a certain thickness are formed on the conveyor belt, the After the heat treatment, the oily cuttings are transported away. Since the cross-section of the straight discharge pipe has a rectangular structure, the oily cuttings maintain a corresponding rectangular shape in the straight discharge pipe and flow into the conveyor belt. The rectangular light spot is completely covered on the oily cuttings. Then, the oil and water in the oily cuttings are quickly heated and evaporated, and the rectangular spot matches the section of the straight discharge pipe, so that the rectangular spot does not extend outside the oily cuttings, avoiding the energy waste of the rectangular spot.

Fourth, the first blower and the second blower with adjustable wind speed are connected to the discharge straight pipe. The first blower and the second blower are distributed along the vertical direction, and blow out 120°C water vapor toward the discharge straight pipe , The oily cuttings are scattered by the 120°C water vapor on the opposite drum, so that the solid and liquid particles in it are evenly distributed, thereby ensuring that the subsequent heating is even, and at the same time, some water in the oily cuttings will be evaporated.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings required in the embodiments. Obviously, the accompanying drawings in the following description are only some of the present invention. Embodiments, for those of ordinary skill in the art, other drawings can also be obtained according to these drawings without paying creative labor.

Fig. 1 is the front view of overall structure of the present invention;

Fig. 2 is the top view of conveyor belt place of the present invention;

Fig. 3 is the side view of overall structure of the present invention;

Among them, 1-cuttings box, 2-flow control valve, 3-outlet straight pipe, 4-first blower, 5-second blower, 6-first sheet laser beam generator, 7-third blower, 8-second sheet laser beam generator, 9-separation box, 10-oily drill cuttings, 11-fourth blower, 12-fixed frame, 13-driving wheel, 14-transmission belt, 15-exciting plate, 16 -vibrator, 17-fixed plate, 18-support frame, 19-exhaust pump, 20-conveyor belt controller, 21-drain pump, 22-condenser, 23-centrifuge, 24-oil phase collection box, 25-water phase collection box, 26-tail gas treatment device, 27-exhaust gas recovery box, 28-slag discharge pump, 29-cooling box, 30-detector, 31-waste residue collection box, 32-automatic feeding machine, 33- Drive motor, 34-stirrer shaft, 35-stirrer sheet.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

The object of the present invention is to provide a kind of oily drill cuttings flake laser beam rapid separation device, to solve the above-mentioned problems in the prior art, the light spot generated by the flake laser beam generator is placed on the oily drill cuttings on the conveyor belt. Fast and uniform heating can efficiently and quickly realize solid-liquid separation in cuttings, and the device structure is simple and miniaturized. At the same time, the control method of the sheet laser beam rapid separation technology is clear, and its control accuracy is also high.

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

Please refer to Fig. 1 to Fig. 3, the present embodiment provides a kind of rapid separation device of oily drilling cuttings flake laser beam, including the storage mechanism containing oily drilling cuttings 10, the separation box 9 located under the storage mechanism, the storage mechanism The bottom end is connected with a discharge straight pipe 3, the discharge straight pipe 3 extends vertically and stretches into the separation box 9, and the separation box 9 is provided with a transmission belt 14 arranged at intervals below the bottom of the discharge straight pipe 3, and the transmission The belt 14 extends horizontally along the direction away from the straight discharge pipe 3; the separation box 9 is provided with a sheet-shaped laser beam generator, which emits a light spot for evaporating and separating the oil and water in the oily drill cuttings 10, The light spot covers the area where the conveyor belt 14 is used to receive the oily cuttings 10; the top of the separation box 9 is communicated with an exhaust pump 19 for extracting the oil vapor and water vapor out of the separation box 9; the discharge end of the conveyor belt 14 is provided with a The slag discharge pipeline that accepts and collects the oily drill cuttings 10 extends out of the separation box 9 and is equipped with a slag discharge pump 28. During the separation process, the oily drill cuttings 10 gradually fall to the separation box through the discharge straight pipe 3 On the conveyor belt 14 in 9, since the light spot emitted by the sheet laser beam generator covers the area of the conveyor belt 14 for receiving oily drill cuttings 10, the oily drill cuttings placed on the conveyor belt 14 are concentrated by the light spot. 10 is heated rapidly and evenly, and the oil and water in the oily drill cuttings 10 absorb enough latent heat of evaporation through rapid heating, and the phase reaches its required boiling point and is transformed into a gaseous state, and the oil phase and water phase in the oily drill cuttings 10 are completely removed, thereby Quickly achieve solid-liquid separation in cuttings, and after the oily cuttings 10 come into contact with the light spot, they are transported through the conveyor belt 14 to move away from the light spot, and the new oily cuttings 10 gradually fall from the discharge straight pipe 3 and then come into contact with the light spot , to form the working state that the oily drill cuttings 10 are continuously heated and processed, the evaporated oil vapor and water vapor are quickly sucked out of the separation box 9 through the exhaust pump 19, and the drill cuttings separated from oil and water are transported to one side through the conveyor belt 14, and passed through The slag discharge pipeline and the slag discharge pump 28 quickly flow out of the separation box 9, avoiding the risk of its condensation in the separation box 9 increasing the recombination with the drill cuttings, ensuring the separation effect of oil-water and solid phase in the oily drill cuttings 10, and the whole device can last The oil-water separation treatment is performed on the oily drilling cuttings 10 , which fully ensures the treatment efficiency of the oily drilling cuttings 10 . The processing capacity of the whole device of the present invention is about 1267.2kg/h, and has the advantages of miniaturization, high oil removal effect, and high economy and timeliness in production.

As a preferred embodiment of the present invention, the separating box 9 is provided with two groups of sheet-shaped laser beam generators, including a first sheet-shaped laser beam generator 6 and a second sheet-shaped laser beam generator 8, and the first sheet-shaped laser beam generator The generator 6 and the second sheet laser beam generator 8 are respectively located directly above the conveyor belt 14, and are located on the front and rear sides of the discharge straight pipe 3 along the conveying direction of the conveyor belt 14, and placed at an angle of 30° to the vertical , the uniform laser sheet width is 30mm, the thickness that the first and second sheet laser beam generators 8 can irradiate is 30mm, and the horizontal irradiation range is 17.32mm, that is, the width generated by the two sheet laser beam generators is 30mm uniform The light is irradiated at an angle of 30° on the material area falling from the 10 tanks of oily drill cuttings, and its thickness and horizontal range are irradiated, and the uniform power density sheet laser beam is used to irradiate obliquely, and the two sheet laser beam generators emit The light spots are connected and covered together on the area of the conveyor belt 14 for receiving the oily cuttings 10. By heating, the oil phase and water in the oily cuttings 10 absorb enough latent heat of evaporation, and the phase reaches its required boiling point and is transformed into In the gaseous state, the oil phase and water phase in the oily drilling cuttings 10 are completely removed, thereby realizing solid-liquid separation. As preferably, the separation box 9 is provided with a fixed frame 12, and the fixed frame 12 fixes the first sheet-shaped laser beam generator 6 and the second sheet-shaped laser beam generator 8 on the upper end of the conveyor belt 14 at a height of 100 mm, and the two sheets The distance between the two sheet laser beam generators is 100mm, and the emission power density of the two sheet laser beam generators is the same, and they are connected to the same controller. Moreover, it is preferable that the irradiation thickness of the first and second sheet laser beam generators 8 matches the thickness of the oily drill cuttings 10 on the conveyor belt 14.

Moreover, the sheet-shaped laser beam generator includes a laser, a spherical lens group for converging the light spot emitted by the laser into a point light source, and a cylindrical lens for converting the point light source into a rectangular light spot. Spherical mirrors, each spherical mirror and cylindrical mirror are arranged on the exit light path of the laser in turn, and the optical power of each spherical mirror increases along the exit light path in turn, the flake laser beam generator can shape the light spot emitted by the ordinary laser into a flake light spot , which reduces the limitation of the sheet laser source on the laser itself, and the power density distribution in the rectangular spot generated by the sheet light generator is uniform. And the preferred laminar laser beam generator is controlled by an external connection integrator.

Further, the cross section of the straight discharge pipe 3 is a rectangular structure suitable for the shape of the rectangular spot. When the oily drill cuttings 10 fall along the straight discharge pipe 3 until the conveyor belt 14 goes up to form the oily drill cuttings 10 with a certain thickness , and then the oily drill cuttings 10 that have been heated are transported away by the conveyor belt 14. Since the cross section of the straight discharge pipe 3 has a rectangular structure, the oily drill cuttings 10 maintain a corresponding rectangular shape in the straight discharge pipe 3 and flow into the conveyor belt. 14. The rectangular light spot completely covers the oily cuttings 10, and then the oil and water in the oily cuttings 10 are quickly heated and evaporated, and the rectangular light spot is matched with the section of the straight discharge pipe 3, so that the rectangular light spot will not extend out of the oily cuttings. The outer side of the cuttings 10 avoids the energy waste of the rectangular spot.

Wherein, the conveyor belt 14 is equipped with a conveyor belt controller 20, which operates at a speed adjusted by the controller, and a flow regulating valve is preferably provided at the inlet of the discharge straight pipe 3, by adjusting the flow control valve 2 of the cuttings box 1, so that The oily drill cuttings 10 fall quantitatively along the discharge straight pipe 3 until the conveyor belt 14 goes up to form oily drill chips 10 of a certain thickness, and the conveyor belt 14 starts to start, and conveys the oily drill chips 10 after heating treatment, and discharges them. The flow rate of the material straight pipe 3 is determined by the flow control valve 2, and the flow rate determines the amount of drill cuttings falling. When the oily drill cuttings 10 move on the conveyor belt 14, the discharge straight pipe 3 falls on the conveyor belt 14 within a unit time The thickness of the oily cuttings 10 is determined by the flow rate of the discharge straight pipe 3 and the speed of the conveyor belt 14. The preferred transmission belt 14 is an endless belt, and it is equipped with two driving wheels 13, and the two driving wheels 13 are arranged in the horizontal direction, and the transmission belt 14 is driven to and fro by the driving wheels 13, and the horizontal transmission of the transmission belt 14 is guaranteed.

As preferably, the first air blower 4 and the second air blower 5 with adjustable wind speed are communicated on the discharge straight pipe 3, and the first air blower 4 and the second air blower 5 are distributed along the vertical direction, and toward the inside of the discharge straight pipe 3. Water vapor at 120°C is blown out in the opposite direction, and the oily cuttings 10 are dispersed by the water vapor at 120°C in the opposite drum, so that the solid and liquid particles in it are evenly distributed, thereby ensuring that the subsequent heating is even, and at the same time, some oily cuttings will be evaporated 10, and can prevent the oily drill cuttings 10 from depositing at the bottom of the cuttings box 1.

And be provided with the 3rd air blower 7 and the 4th air blower 11 in the separating box 9, the 3rd air blower 7 is positioned at the input side of conveyer belt 14, and the 4th air blower 11 is positioned at the bottom of conveyer belt 14, and the 3rd air blower 7 and the 4th air blower 11 They all face the area where the conveyor belt 14 is used to receive the oily cuttings 10. The third blower 7 and the fourth blower 11 work together to prevent coking at the bottom of the oily cuttings 10 during heating. Further, the third blower 7 and the fourth blower The four air blowers 11 jointly blow the oily drill cuttings 10 transported by sheet-shaped laser beams to make the oily drill cuttings 10 tumble, so that the particles, water and oil in the oily drill cuttings 10 are evenly distributed. Preferably, the fourth air blower 11 has six air outlets to further make the oily cuttings 10 tumble on the conveyor belt 14 so that they are evenly distributed.

As a preferred embodiment of the present invention, several exciters 16 are provided below the conveying portion of the conveyor belt 14, and the exciters 16 include the exciter 16 body fixedly installed in the separation box 9, and the exciter 16 body installed on the body of the exciter 16. The vibration excitation plate 15 is attached to the bottom surface of the conveying part. Specifically, the vibration exciter 16 utilizes the vibration mechanism, and the vibration exciter 16 is installed on the fixed plate 17, and the vibration exciter 16 is driven up and down by a spring The exciting plate 15 and the transmission belt 14 vibrate, and the high vibration frequency and low amplitude vibrate the oily drilling cuttings 10 on the transmission belt 14, and then cooperate with the third and fourth blowers 11 to distribute the oily drilling cuttings 10 evenly. Under the irradiation of the sheet-shaped laser beam, it is heated evenly. Preferably, the body of the exciter 16 is connected to the wheel core of the driving wheel 13 through a fixing plate 17 .

Further, the exhaust pump 19 is connected with a recovery mechanism for separating and treating oil vapor and water vapor. The recovery mechanism includes a condenser 22 connected at the outlet of the exhaust pump 19, and the liquid outlet of the condenser 22 is connected with a recovery mechanism for separating oil and water. The centrifuge 23, the air outlet of the condenser 22 is connected with an exhaust gas recovery box 27 for collecting untreated clean exhaust gas, the mixed steam of oil vapor and water vapor is cooled in the condenser 22, and the water and The oil is separated, and the untreated waste gas enters the waste gas recovery box 27 for collection. Preferably, an exhaust gas treatment device 26 is provided at the entrance of the waste gas recovery box 27 to purify the untreated waste gas, filter and absorb harmful substances. gas etc. Preferably, the liquid outlet of the centrifuge 23 communicates with an oil phase collection box 24 and a water phase collection box 25 to store oil liquid and water respectively.

Preferably, the outlet of the slag discharge pipeline is connected with a cooling box 29 for cooling the oily cuttings 10, and the outlet of the cooling box 29 is provided with a detector 30 for detecting the effect after the separation of the oily cuttings 10. When drilling cuttings, the cuttings are transported to the output end of the conveyor belt 14, and are sucked into the slagging pipeline by the slag discharge pump 28, and discharged from the separation box 9, and cooled by the cooling box 29 to avoid detection of the cuttings by the subsequent detector 30. When it is damaged, the detector 30 will be damaged. After the detection by the detector 30, the qualified drilling cuttings will be recycled, and the unqualified drilling cuttings will be discharged into the storage mechanism again. As a preferred embodiment of the present invention, the bottom of the separation box 9 is communicated with a drain pump 21, and the incompletely evaporated liquid oil and water and condensed oil and water are discharged from the separation tank 9. The preferred drain pump 21 is connected to the condenser 22, After further condensation, the centrifuge 23 is used for oil-water separation.

Moreover, the outlet of the detector 30 is connected in parallel with a waste slag collection box 31 and a return pipeline, and the qualified drill cuttings are recycled to the waste slag collection box 31, and the unqualified drill cuttings still have a large amount of oil and water, which are discharged into the return material In the pipeline, the return pipeline is connected with the material storage mechanism, and the drill cuttings are discharged into the separation box 9 through the material storage mechanism, so that the unqualified drill cuttings can be separated again.

Preferably, the storage mechanism includes a cuttings box 1. Preferably, the cuttings box 1 is fixed on the ground by a support frame 18, and the main body of the flow control valve 2 is also installed on the support frame 18. The bottom end of the cuttings box 1 communicates with There is a discharge straight pipe 3, and a vertically extending stirring shaft 34 is installed in the drill cuttings box 1. The stirring shaft 34 is provided with a stirring piece 35 for stirring the oily cuttings 10 evenly. The stirring shaft 34 and the stirring piece 35 The stirring effect on the oily cuttings 10 makes the distribution of the oily cuttings 10 in the cuttings box 1 more uniform. The preferred drilling cuttings box 1 is provided with a drive motor 33, the drive motor 33 is connected with the stirring shaft 34 in transmission, and the driving motor 33 drives the stirring shaft 34 to rotate so that the stirring blade 35 stirs the oily cuttings 10 in the stirring box. The feed port of the preferred cuttings box 1 is equipped with an automatic chain feeder, and the oily drill cuttings 10 are discharged into the cuttings box 1 through the automatic chain feeder, and the preferred return pipeline is connected to the automatic chain feeder. feeder.

Further, the automatic feeding machine 32 contains grooves, and when reaching the cuttings box 1, the oily cuttings 10 in the grooves fall into the cuttings box 1 to complete the automatic feeding process. The inside of the cuttings box 1 contains two pairs of stirring shafts 34, and the two stirring shafts 34 are arranged horizontally to fully stir the cuttings. In addition, the bottom of the cuttings box 1 is provided with an inclined surface, which is beneficial for the oily cuttings 10 to flow out when the flow control valve 2 is opened. The outlet at the bottom of the cuttings box 1 is a rectangular shape matched with the discharge straight pipe 3, with a length of 60 mm and a width of 300 mm. The arm moves upward along the rectangle, so that the oily cuttings 10 coming out of the flow control valve 2 are in a rectangular shape, and then flow out through the straight discharge pipe 3, and the oily cuttings 10 remain in a rectangular shape in the straight discharge pipe 3 and flow in and transport along the valve. with 14.

As a preferred embodiment of the present invention, specifically implemented, by adjusting the flow valve, the oily cuttings 10 flowing out from the bottom rectangular opening of the cuttings box 1 to the conveyor belt 14 have a thickness of 40 mm, according to the formula volume flow (Q)=average flow velocity ( v) × Rectangular outlet cross-sectional area (A), the volume dropped onto the conveyor belt 14 along the rectangular mouth is 40mmX60mmX300mm, the outlet cross-sectional area is 18000mm ² , the flow rate of the flow control valve 2 is 20mm/s, and the upper end of the rectangular connecting pipe is For straight pipes, the falling time of oily cuttings 10 under the action of gravity is relatively short and negligible. When the conveyor belt 14 moves horizontally to the right at 0.0133m/s when the controller is adjusted, the length of horizontal oily cuttings 10 can reach 400mm. After 2 seconds, the flow control valve 2 is opened for two seconds, and the thickness of the inflow on the conveyor belt 14 is 40 mm, so the oily drill cuttings 10 on the conveyor belt 14 can be regarded as continuous.

Combined with the actual situation of the offshore platform, an efficient treatment method for the concentrated energy sheet laser beam is proposed. The entire sheet laser beam rapid separation device composed of the above-mentioned components has a width of no more than 400mm, a length of no more than 600mm, and a height of about 500mm. The processing capacity of the laser beam rapid separation device is about 1267.2kg/h, and other collection and processing devices are attached to the separation device, occupying a small space. The economy and timeliness in production are high.

Adaptive changes made according to actual needs are within the protection scope of the present invention.

It should be noted that, for those skilled in the art, it is obvious that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. . Accordingly, the embodiments should be regarded in all points of view as exemplary and not restrictive, the scope of the invention being defined by the appended claims rather than the foregoing description, and it is therefore intended that the scope of the invention be defined by the appended claims rather than by the foregoing description. All changes within the meaning and range of equivalents of the elements are embraced in the present invention. Any reference sign in a claim should not be construed as limiting the claim concerned.

In the present invention, specific examples have been used to illustrate the principle and implementation of the present invention. The description of the above embodiments is only used to help understand the method and core idea of the present invention; meanwhile, for those of ordinary skill in the art, according to the present invention The idea of the invention will have changes in the specific implementation and scope of application. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims (10)

1. The device for rapidly separating the oil-containing drill cuttings into the sheet laser beams is characterized by comprising a storage mechanism for containing the oil-containing drill cuttings and a separation box positioned below the storage mechanism, wherein a discharge straight pipe is communicated with the bottom end of the storage mechanism, the discharge straight pipe vertically extends and extends into the separation box, transmission belts arranged below the bottom end of the discharge straight pipe at intervals are arranged in the separation box, and the transmission belts horizontally extend along the direction far away from the discharge straight pipe; the separation box is provided with a sheet-shaped laser beam generator, the sheet-shaped laser beam generator emits light spots for evaporating and separating oil and water in the oil-containing drill cuttings, and the light spots cover the area of the conveying belt for receiving the oil-containing drill cuttings; the top of the separation tank is communicated with an exhaust pump for pumping oil vapor and water vapor out of the separation tank; the discharge end of transmission band is equipped with the row's of being used for accepting and collecting the oily drill chip sediment pipeline, arrange the sediment pipeline and extend the separator box outside and be equipped with the sediment pump.

2. The oily drilling cutting sheet-shaped laser beam quick separation device as claimed in claim 1, wherein the sheet-shaped laser beam generator comprises a laser, a spherical lens group for converging light spots emitted by the laser into point light sources, and a cylindrical lens for converting the point light sources into rectangular light spots, the spherical lens group comprises a plurality of spherical lenses with different focal powers, each spherical lens and the cylindrical lens are sequentially arranged on an emergent light path of the laser, and the focal powers of the spherical lenses are sequentially increased along the emergent light path.

3. The oily cuttings sheet-like laser beam rapid separation device according to claim 2, characterized in that the cross section of the discharge straight pipe is of a rectangular structure matched with the shape of the rectangular light spot.

4. The oily drill cuttings sheet-like laser beam rapid separation device according to any one of claims 1 to 3, wherein a first air blower and a second air blower with adjustable air speeds are communicated with the straight discharge pipe, and are distributed in a staggered mode in the vertical direction, and 120 ℃ water vapor is oppositely blown out towards the inside of the straight discharge pipe.

5. The oily drill cuttings sheet-like laser beam rapid separation device according to claim 4, characterized in that a third air blower and a fourth air blower are arranged in the separation box, the third air blower is positioned at the input side of the conveying belt, the fourth air blower is positioned at the bottom of the conveying belt, and the third air blower and the fourth air blower are both towards the area of the conveying belt for receiving oily drill cuttings.

6. The device for rapidly separating the oily drill cuttings by using the sheet laser beam as claimed in claim 5, wherein a plurality of vibration exciters are arranged below the conveying part of the conveying belt, each vibration exciter comprises a vibration exciter body fixedly arranged in the separation box and a vibration exciting plate arranged on the vibration exciter body, and the vibration exciting plates are attached to the bottom surface of the conveying part.

7. The device for rapidly separating the oily cuttings by using the sheet-shaped laser beam as claimed in claim 6, wherein the exhaust pump is communicated with a recovery mechanism for separating and treating oil vapor and water vapor, the recovery mechanism comprises a condenser communicated with the outlet of the exhaust pump, the liquid outlet of the condenser is communicated with a centrifuge for separating oil from water, and the gas outlet of the condenser is communicated with a waste gas recovery tank for collecting untreated clean waste gas.

8. The oily drilling cutting sheet-shaped laser beam rapid separation device according to claim 7, wherein an outlet of the slag discharge pipeline is communicated with a cooling tank for cooling the oily drilling cutting, and a detector for detecting the effect of the separated oily drilling cutting is arranged at the outlet of the cooling tank.

9. The oily drilling cutting flake laser beam rapid separation device as claimed in claim 8, wherein the outlet of the detector is connected in parallel with a waste residue collection box and a return pipeline, and the return pipeline is communicated with the storage mechanism.

10. The oily drilling cutting sheet-shaped laser beam rapid separation device according to claim 9, wherein the storage mechanism comprises a drilling cutting box, the bottom end of the drilling cutting box is communicated with the discharge straight pipe, a vertically extending stirring shaft is rotationally arranged in the drilling cutting box, and stirring sheets for uniformly stirring oily drilling cutting are arranged on the stirring shaft.

Images