阅读说明：本技术 一种连续脱除油品中脱悬浮物的装置和方法 (Device and method for continuously removing suspended matters in oil product ) 是由 何佳 杨秀娜 阮宗琳 于 2019-10-31 设计创作，主要内容包括：一种连续脱除油品中脱悬浮物的装置和方法,包括包括悬浮物脱除系统和填料再生系统,悬浮物脱除系统包括一个悬浮物脱除器,其内设置气体分布装置、均质仓和填装吸附填料的脱悬浮物区,利用气浮将大部分悬浮物脱除,并实现水相和油相的初步分离,吸附饱和的填料进入填料再生系统进行再生,通过填料再生反应器内内筒和外筒的设计,利用清洗液和气浮将填料再生并运送回脱悬浮物区。本发明先对悬浮物进行均质处理,将较大块的悬浮物均质化处理成尺寸较小的悬浮物,再利用吸附填料进行脱除并进行初步的油水分离,得到携带少量悬浮物的水相和油相,利用现有技术的方法较容易实现水相和油相的深度分离,解决了后续油水分离过程生产效率低、容易堵塞填料等问题。(The utility model provides a device and method of taking off suspended solid in continuous desorption oil, including suspended solid desorption system and filler regeneration system, suspended solid desorption system includes a suspended solid remover, set up gas distribution device in it, homogeneity storehouse and the suspension district that takes off that loads adsorption filler, utilize the air supporting to get rid of most suspended solid, and realize the primary separation of aqueous phase and oil phase, the filler that adsorbs the saturation gets into the filler regeneration system and regenerates, through the design of inner tube and urceolus in the filler regeneration reactor, utilize washing liquid and air supporting to pack regeneration and transport back to taking off the suspension district. According to the invention, the suspended matters are firstly homogenized, the larger suspended matters are homogenized into the suspended matters with smaller sizes, then the adsorption filler is used for removing and carrying out preliminary oil-water separation to obtain the water phase and the oil phase carrying a small amount of suspended matters, the method in the prior art is used for easily realizing the deep separation of the water phase and the oil phase, and the problems of low production efficiency, easy filler blockage and the like in the subsequent oil-water separation process are solved.)

1. A device for continuously removing suspended matters in oil products is characterized by comprising a suspended matter removing system and a filler regenerating system;

the suspended matter removing system comprises a suspended matter remover, the middle part of the suspended matter remover is provided with a homogenizing bin, the homogenizing bin is a space formed by two porous partition plates, the bottom of the homogenizing bin is provided with a gas distribution device I, the lower part of the homogenizing bin is an oil-water separation zone, and the bottom of the suspended matter remover is provided with an oil phase outlet; the upper part of the homogenizing bin is a suspension removing area, the suspension removing area is filled with adsorption filler, and the top of the suspension remover is provided with a gas outlet I; a material inlet is formed in the wall of the side face of the homogenizing bin, a water phase outlet and a filler outlet are respectively formed in the wall of the suspension removing area, which is opposite to the material inlet, and the position of the filler outlet is higher than that of the water phase outlet;

the filler outlet is connected with a filler regeneration system through a filler conveying pipe, a filler cleaning solution inlet is formed in the filler conveying pipe, the filler regeneration system comprises a filler regeneration reactor, the filler regeneration reactor comprises an outer cylinder and an inner cylinder, the inner cylinder is a U-shaped cylinder, the top of the inner cylinder is open, the filler conveying pipe is opened above the inner cylinder, a gas distribution device II is arranged at the bottom of the inner cylinder, a filler cleaning solution outlet is also formed in the bottom of the inner cylinder, and a connecting pipeline leads to the outside of the filler regeneration reactor; the inner cylinder is communicated with the outer cylinder through an opening in the top, the top of the outer cylinder is provided with a gas outlet II, the bottom of the outer cylinder is provided with a filler outlet connected with a filler circulating pipe, the tail end of the filler circulating pipe is connected with a filler buffer tank, and the bottom end of the filler buffer tank is provided with a suspension removing area of which the outlet is connected with a suspension remover.

2. The apparatus of claim 1, wherein the gas distribution means I and II are microbubble generators capable of forming bubbles having a size of 50nm to 1000 μm.

3. The apparatus of claim 1, wherein the homogenizing chamber is selected from any one or more of an ultrasonic reactor, a microwave oscillation reactor, a mechanical stirrer, a magnetic stirrer and the like.

4. The apparatus of claim 1, wherein the adsorbent packing is of a density of 50kg/m³～900kg/m³The oleophilic type filler is selected from at least one of polyester, polyethylene, polypropylene, polyvinyl chloride, polytetrafluoroethylene, acrylic acid and nylon, or is selected from materials of which the surfaces are subjected to oleophilic treatment.

5. The apparatus of claim 4, wherein the adsorptive filler is in a non-fixed packed state within the region of the resuspension zone, and the porosity of the filler is in the range of 30% to 95%.

6. The device as claimed in claim 1, wherein a pressure plate is arranged on the top of the adsorption packing, and the space above the pressure plate is a gas-liquid separation zone and is communicated with the gas outlet I.

7. The apparatus of claim 1, wherein the gas outlet I is further connected to a gas distribution device I through a booster I, and the gas outlet II is further connected to a gas distribution device II through a booster II.

8. The apparatus of claim 7, wherein the I and II compressors are selected from the group consisting of a compressor, a dissolved air pump, and a high pressure jet pump.

9. The device of claim 1, wherein a baffle is further provided at an upper portion of the outer barrel.

10. The device according to claim 9, characterized in that the side of the filling material circulating pipe is also connected with a compressor for feeding gas into the filling material conveying pipe, and correspondingly, a gas outlet III is arranged on the filling material buffer tank.

11. The device as claimed in claim 1, wherein valves are arranged on the filler conveying pipe, the filler circulating pipe, the filler buffer tank and the suspended matter remover.

12. A method for the continuous removal of suspended matter from oil products by means of a device according to any one of claims 1 to 11, comprising the following steps: the method comprises the following steps that materials to be treated enter a homogenizing bin from a material inlet, suspended matters in the materials to be treated are homogenized under the action of the homogenizing bin, lighter suspended matters and a water phase move upwards at a high speed under the pushing action of micro bubbles and enter a suspended matter removing area, most of the suspended matters are adsorbed and removed under the action of adsorption fillers and the micro bubbles, gas is discharged from a gas outlet I at the top, and a small amount of suspended matters are carried in the lighter water phase and discharged from a water phase outlet; the heavier oil phase is gathered at the lower layer and discharged through an oil phase outlet; the filling materials with saturated adsorption enter the filling material conveying pipe from a filling material outlet, the cleaning liquid entering from a mixed filling material cleaning liquid inlet enters an inner cylinder of a filling material regeneration system, the filling materials collide under the floating action of bubbles generated by the gas distribution device II, the adsorbed suspended matters are eluted by the cleaning liquid, the cleaning liquid leaves from the filling material cleaning liquid outlet at the bottom of the inner cylinder, and the gas is discharged from a gas outlet II at the top; the cleaned filler enters the area between the outer cylinder and the inner cylinder from the upper end of the inner cylinder under the action of air flotation, enters the filler circulating pipe from the filler outlet at the bottom of the outer cylinder, passes through the filler buffer tank and returns to the zone for removing the suspended matters.

13. The method according to claim 12, wherein the material to be treated is selected from any one of heavy inferior raw oil, oily sewage, heavy dirty oil and coal tar.

14. The method of claim 12, wherein the material to be treated is injected with water in an amount of 3-20% by mass of the oil.

15. The method as claimed in claim 12, wherein the gas introduced into the gas distribution unit i and the gas distribution unit ii is selected from nitrogen, air or an inert gas.

16. The method as claimed in claim 12, wherein the ratio of the aeration rate of the gas distribution device I to the volume of the feed material to be treated is 1:1 to 500:1, and the ratio of the aeration rate of the gas distribution device II to the volume of the filler cleaning solution is 1:1 to 2000: 1.

17. The method of claim 12, wherein the filler cleaning fluid is selected from at least one of gasoline, kerosene, diesel, benzenes, esters, acids, ketones, and aldehydes.

18. The method of claim 12, wherein the operating conditions of the aerosol removal system are as follows: the temperature is normal temperature to 200 ℃, and the pressure is 0.3 to 10.0 MPa.

19. The method of claim 12, wherein the operating conditions within the packing regeneration reactor of the packing regeneration system are as follows: the temperature is normal temperature-150 ℃, and the pressure is 0.1-5.0 MPa.

20. The method of claim 12, wherein the operating conditions of the stuffing surge tank are as follows: the temperature is normal temperature to 100 ℃, and the pressure is 0.1 to 10.0 MPa.

Technical Field

The invention belongs to the technical field of petrochemical industry, and particularly relates to a device and a method for continuously removing suspended matters in an oil product.

Background

In recent years, with the trend of crude oil deterioration and heaviness enhancement, crude oil, secondary processing heavy oil and dirty oil all contain a certain amount of colloid suspended matters, and facilities for removing suspended matters from crude oil are absent or lack in the prior art. The existing first operation step of crude oil entering a plant is electro-desalting and dewatering, and the existence of colloid suspended matters has great influence on the effect of electro-desalting and dewatering and subsequent processing, such as the problem of incomplete oil-water separation caused by easy blockage of flowing equipment and pipelines.

In the prior art, in the process of electric desalting and dewatering, because the process and the equipment for removing colloid suspended matters are not provided, the electric desalting and dewatering equipment for crude oil also has no function of removing suspended matters, and has the following problems: (1) the colloid suspended matters in the crude oil electric desalting and dewatering process are in a suspended state, cannot be removed by settling separation, and are easy to block equipment and pipelines; (2) the suspended matters are macromolecular complex structures, cannot be polarized by an electric field, influence the desalting and dewatering effects, and are also the main reasons for the unqualified salt content indexes in the desalted crude oil; (3) the colloid suspended substance is an oil substance with light density but is insoluble in water, so that the oil-water separation effect is influenced in the oil-water separation process, the oil-water two phases are very seriously carried with each other, and the water content in the oil product is higher. Therefore, if the desalting and dewatering of heavy oil, i.e. the oil-water separation, are to achieve a good effect, new processes and supporting equipment need to be developed, the problems of poor desalting effect, serious oil-water two-phase entrainment and the like in the desalting and dewatering process of the oil product can be solved by effectively removing suspended matters in the oil product and then carrying out deep dewatering.

CN 109758828A proposes a sewage suspended matter settling device, which comprises a shell; an annular cap is arranged in the shell, a coagulation cavity with a downward opening is arranged in the middle of the annular cap, and a ring is arranged at the upper end of the annular cap

A shaped flocculation chamber; a first stirring plate is arranged in the coagulation cavity, the upper end of the first stirring plate is fixedly connected with a first liquid outlet pipe, and a water outlet head is arranged in the coagulation cavity; a second liquid outlet pipe is circumferentially distributed in the flocculation cavity, and the lower end of the second liquid outlet pipe is fixedly connected with a second stirring plate; the flocculation cavity is an annular cavity, and sludge settling cylinders which are distributed circumferentially are arranged in the flocculation cavity. The invention improves the settling efficiency of suspended matters by mixing the coagulant and the flocculant, and is also a traditional suspended matter settling method which is difficult to settle and remove suspended matters floating in a water phase.

CN 109453561A proposes a method for removing suspended matters in grease, which is a method for removing suspended matters in grease and comprises the steps of carrying out primary filtration on primary oil to obtain primary filtered oil; then, carrying out secondary filtration on the primary filtered oil to obtain secondary filtered oil; filtering the second filtered oil for the third time to obtain third filtered oil; performing fourth filtration on the third filtered oil by using a bag filter; in conclusion, the method of multi-stage filtration is adopted to remove suspended matters in the grease. The method has the problems that the filtering equipment is rapidly blocked and cannot be operated for a long period.

In conclusion, the development of the device and the method for removing the suspended matters in the crude oil, which have the advantages of simple process, good treatment effect, high production efficiency, continuous regeneration and long-period operation guarantee, has important significance.

Disclosure of Invention

Aiming at the lack of a device capable of efficiently removing suspended matters in oil products and continuously operating for a long period in the prior art, the invention provides a device and a method for continuously removing suspended matters in oil products, which can efficiently remove the suspended matters in the oil products, and continuously regenerate and discharge suspended matter removing fillers on line, thereby solving the problems of complex flow, low efficiency, easy blockage of filtering facilities or fillers and the like of the conventional suspended matter equipment, improving the removing efficiency of the removed suspended matters, and enabling the equipment to operate for a long period.

In order to achieve the technical purpose, the technical scheme adopted by the invention is as follows:

the technical purpose of the first aspect of the invention is to provide a device for continuously removing suspended matters in oil products, which comprises a suspended matter removing system and a filler regenerating system;

the suspended matter removing system comprises a suspended matter remover, the middle part of the suspended matter remover is provided with a homogenizing bin, the homogenizing bin is a space formed by two porous partition plates, the bottom of the homogenizing bin is provided with a gas distribution device I, the lower part of the homogenizing bin is an oil-water separation zone, and the bottom of the suspended matter remover is provided with an oil phase outlet; the upper part of the homogenizing bin is a suspension removing area, the suspension removing area is filled with adsorption filler, and the top of the suspension remover is provided with a gas outlet I; a material inlet is formed in the wall of the side face of the homogenizing bin, a water phase outlet and a filler outlet are respectively formed in the wall of the suspension removing area, which is opposite to the material inlet, and the position of the filler outlet is higher than that of the water phase outlet;

the filler outlet is connected with a filler regeneration system through a filler conveying pipe, a filler cleaning solution inlet is formed in the filler conveying pipe, the filler regeneration system comprises a filler regeneration reactor, the filler regeneration reactor comprises an outer cylinder and an inner cylinder, the inner cylinder is a U-shaped cylinder, the top of the inner cylinder is open, the filler conveying pipe is opened above the inner cylinder, a gas distribution device II is arranged at the bottom of the inner cylinder, a filler cleaning solution outlet is also formed in the bottom of the inner cylinder, and a connecting pipeline leads to the outside of the filler regeneration reactor; the inner cylinder is communicated with the outer cylinder through an opening in the top, the top of the outer cylinder is provided with a gas outlet II, the bottom of the outer cylinder is provided with a filler outlet connected with a filler circulating pipe, the tail end of the filler circulating pipe is connected with a filler buffer tank, and the bottom end of the filler buffer tank is provided with a suspension removing area of which the outlet is connected with a suspension remover.

Further, the adsorption filler is low-density air flotation filler with the filler density of 50kg/m³～900kg/m³Preferably 300kg/m³～600kg/m³(ii) a The filler is made of oleophylic materials or modified oleophylic materials, and is selected from at least one of polyester, polyethylene, polypropylene, polyvinyl chloride, polytetrafluoroethylene, acrylic acid and nylon, or is selected from materials of which the surfaces are subjected to oleophylic treatment; the packing may be any shape such as any one type of large-pore honeycomb packing, large-pore wire mesh packing, hollow packing, fabric packing, and corrugated corner packing.

Further, the adsorption filler is in a non-fixed filling state in the suspension removal area; the porosity of the filler is 30% to 95%, preferably 50% to 80%.

Furthermore, a pressure plate is arranged at the top of the adsorption filler to prevent the adsorption filler from ascending, and a gas-liquid separation area is arranged in the space above the pressure plate and communicated with the gas outlet I.

Further, the homogenizing chamber is a region where the feed material can be homogenized, the homogenizing treatment can be realized by various methods, and the homogenizing chamber can be any one or combination of an ultrasonic reactor, a microwave oscillation reactor, a mechanical stirrer, a magnetic stirrer and the like.

Further, the homogenizing chamber is preferably an ultrasonic reactor because ultrasonic waves have better conductivity in oil and water; the ultrasonic wave generating frequency is generally 20 KHz-100 KHz, and the power density is generally more than or equal to 0.3w/cm²(power density = transmission power (W)/transmission area (cm)²) The signal can be a sinusoidal signal or a pulse signal.

Furthermore, the gas distribution device I and the gas distribution device II are micro-bubble generators, the micro-bubble generators are devices capable of dispersing gas into small-size bubbles, or can be called as micro-pore bubble generators, membrane tube micro-diffusers, ultra-micro-bubble generators and the like, bubbles with the size of 50 nm-1000 microns, preferably 5 microns-100 microns can be formed, and equipment capable of realizing the functions can be used for the invention, has the function of pushing and accelerating the floating of suspended matters in feeding, and is mainly realized by a pressurized dissolved gas floatation method.

Further, gas outlet I still connects gas distribution device I through booster I, realizes gaseous cyclic utilization.

Furthermore, the gas outlet II is also connected with a gas distribution device II through a supercharger II, so that the recycling of gas is realized.

Further, the supercharger I and the supercharger II are selected from one or more of a compressor, a dissolved air pump and a high-pressure jet pump.

Furthermore, the inner cylinder is a combination of a cylinder and a cone, the upper part of the cylinder is large, the lower part of the cylinder is small, and the upper part of the homogenizing bin forms a stable liquid level, so that the higher homogenizing efficiency of suspended matters is favorably ensured, and the suspended matter removing effect is prevented from being influenced by the fluctuation of the suspended matter removing process; the cone part is arranged to enable materials to form rotational flow at the lower part of the homogenizing bin, so that the oil-water separation rate and oil phase floating are accelerated. Furthermore, the upper part of the outer barrel is also provided with a baffle plate to prevent the filler from upwards rushing out.

Furthermore, the side surface of the filler circulating pipe is also connected with a compressor for feeding air into the filler conveying pipe so as to push the filler to run along the pipeline. Correspondingly, a gas outlet III is arranged on the packing buffer tank.

Furthermore, valves are arranged on the filler conveying pipe, the filler circulating pipe and between the filler buffer tank and the suspended matter remover and are used for controlling the conveying of the filler.

The technical purpose of the second aspect of the invention is to provide a method for continuously removing suspended matters in oil products by using the device, which comprises the following steps: the method comprises the following steps that materials to be treated enter a homogenizing bin from a material inlet, suspended matters in the materials to be treated are homogenized under the action of the homogenizing bin, lighter suspended matters and a water phase move upwards at a high speed under the pushing action of micro bubbles and enter a suspended matter removing area, most of the suspended matters are adsorbed and removed under the action of adsorption fillers and the micro bubbles, gas is discharged from a gas outlet I at the top, and a small amount of suspended matters are carried in the lighter water phase and discharged from a water phase outlet; the heavier oil phase is gathered at the lower layer and discharged through an oil phase outlet; the filling materials with saturated adsorption enter the filling material conveying pipe from a filling material outlet, the cleaning liquid entering from a mixed filling material cleaning liquid inlet enters an inner cylinder of a filling material regeneration system, the filling materials collide under the floating action of bubbles generated by the gas distribution device II, the adsorbed suspended matters are eluted by the cleaning liquid, the cleaning liquid leaves from the filling material cleaning liquid outlet at the bottom of the inner cylinder, and the gas is discharged from a gas outlet II at the top; the cleaned filler enters the area between the outer cylinder and the inner cylinder from the upper end of the inner cylinder under the action of air flotation, enters the filler circulating pipe from the filler outlet at the bottom of the outer cylinder, passes through the filler buffer tank and returns to the zone for removing the suspended matters.

The technical scheme of the invention includes that firstly, the suspended matters are homogenized to form suspended matters with small shapes and sizes, and then are separated and removed through adsorption fillers, so that the problems that the suspended matters are easy to hang and block equipment, the equipment is not easy to clean and the long-period operation cannot be maintained are solved. Secondly, in the process of removing the suspended matters, because the suspended matters have low density and exist in a water phase in heavy oil products (oil products with density larger than water), and the fed materials are oil-water two-phase, if the conventional suspended matters are removed, the oil-water two-phase fed materials need to enter the removing equipment, the problems of low suspended matter removing efficiency, oil carrying of the removed suspended matters and the like are caused, and if the prior art is adopted for oil-water separation and then the suspended matters are removed, the problems that the suspended matters block the oil-water separating equipment and the suspended matters cannot run for a long period exist.

In the above method, as will be understood by those skilled in the art, the material to be treated first enters a homogenizing silo in the suspended matter removing system, the material is subjected to sedimentation separation under the action of gravity and cyclone separation on the one hand to obtain a light phase and a heavy phase primarily, the upper light phase is subjected to homogenization treatment to reduce the size of suspended matters in the material under the action of the homogenizing silo, and the material enters an upper suspended matter removing area under the action of feed pushing, and most of the suspended matters are suspended and removed under the action of the adsorption filler; in order to increase the floating rate of suspended solids in the material and improve homogenization efficiency, the gas volume, pressure and bubble generation size that gas distribution device I let in can be controlled, the suspended solids are carried through producing a large amount of microbubble come-up, and the suspended solids are enriched fast in the homogenization storehouse.

Further, the material to be treated is selected from any one of heavy inferior raw oil, oily sewage, heavy dirty oil and coal tar.

Furthermore, the material to be treated needs to be injected with water, and the water injection amount is 3-20% of the oil product mass.

Further, the gas introduced into the gas distribution device I and the gas distribution device II is selected from nitrogen, air or inert gas, preferably nitrogen.

Further, the volume ratio (Nm) of the aeration of the gas distribution unit I to the feed of the material to be treated³/h：m³H) is 1:1 to 500:1, preferably 10:1 to 100: 1; volume ratio (Nm) of aeration volume of gas distribution device II to filler cleaning solution³/h：m³The volume of the gas is 1:1 to 2000:1, preferably 500:1 to 1500:1, wherein the volume of the gas is calculated by the volume of the gas in a standard state.

Furthermore, the filler cleaning solution is a plurality of types of oils or organic solvents which do not contain suspended matters, have low viscosity and good properties and are selected from at least one of gasoline, kerosene, diesel oil, benzenes, esters, acids, ketones and aldehydes; the filler cleaning liquid is continuously or intermittently introduced.

Further, the operating conditions of the suspended matter removal system are as follows: the temperature is normal temperature to 200 ℃, preferably 60 to 120 ℃; the pressure is 0.3-10.0 MPa, preferably 0.5-2.0 MPa; the operating conditions in the packing regeneration reactor of the packing regeneration system are as follows: the temperature is normal temperature to 150 ℃, preferably 30 to 120 ℃, and the pressure is 0.1 to 5.0MPa, preferably 0.1 to 2.0 MPa; the operating conditions of the packing surge tank were as follows: the temperature is normal temperature-100 ℃, preferably normal temperature-60 ℃, and the pressure is 0.1-10.0 MPa, preferably 0.1-1.0 MPa.

Further, the filler is conveyed in the filler circulating pipe by means of gas impact force generated by a compressor, and the pressure of the filler circulating pipe is 0.01-10 MPaG, preferably 0.1-2.0 MPaG; the conveying speed of the gas is 5-30 m/s, preferably 15-25 m/s.

Compared with the prior art, the invention has the following advantages:

(1) the invention provides a device and a method for continuously removing suspended matters in oil products, which are characterized in that the suspended matters are firstly homogenized, larger suspended matters are homogenized into suspended matters with smaller sizes, then adsorption fillers are used for removing and preliminary oil-water separation is carried out, and water phases and oil phases carrying a small amount of suspended matters are obtained.

(2) In the process of removing suspended matters by using the adsorption filler, the filler is easy to adsorb and saturate, at the moment, common equipment needs to be shut down to regenerate the filler.

Additional features and advantages of the invention will be set forth in the detailed description which follows.

Drawings

FIG. 1. apparatus for the continuous removal of suspended solids from oil according to example 1;

the device comprises a suspended matter remover 1, a homogenizing bin 2, an oil-water separation zone 3, a suspended matter removal zone 4, a material inlet 5, a water phase outlet 6, an oil phase outlet 7, a gas outlet I8, a micro-bubble generator I9, a filler outlet 10, a pressing plate 11, a dissolved air pump I12, a valve I13, a valve I14, a filler cleaning liquid inlet 15, a filler conveying pipe 16, a filler regeneration reactor 17, an outer cylinder 18, an inner cylinder 18, a micro-bubble generator II 19, a filler cleaning liquid outlet 20, a baffle 21, a baffle 22, a gas outlet II 23, a dissolved air pump II 24, a valve II 25, a compressor 26, a filler circulating pipe 27, a filler buffer tank 28, a gas outlet III 29 and a valve III.

Detailed Description

The following describes in detail specific embodiments of the present invention. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.

A device for continuously removing suspended matters in oil products comprises a suspended matter removing system and a filler regenerating system, as shown in figure 1:

the suspended matter removing system comprises a suspended matter remover 1, wherein a homogenizing bin 2 which is an ultrasonic reactor and is externally connected with a power supply is arranged in the middle of the suspended matter remover 1; the homogenizing chamber 2 is composed of two porous partitionsA micro-bubble generator I9 is arranged at the bottom of the homogenizing chamber 2 to form bubbles with the size of 5-100 mu m; the lower part of the homogenizing bin 2 is provided with an oil-water separation zone 3, and the bottom of the suspended matter remover 1 is provided with an oil phase outlet 7; the upper part of the homogenizing chamber 2 is a suspension removing area 4 filled with adsorption filler with the density of 600kg/m³The macroporous cellular polypropylene filler has a porosity of 65% in a non-fixed filling state; a pressure plate 11 is arranged at the top of the adsorption filler, and a gas-liquid separation area is arranged in the space above the pressure plate 11 and communicated with a gas outlet I8; the top of the suspended matter remover 1 is provided with a gas outlet I8, and the gas outlet I8 is also connected with a micro-bubble generator I9 through a dissolved gas pump I12 to realize the recycling of gas; a material inlet 5 is arranged on the wall of the side surface of the homogenizing bin 2, a water phase outlet 6 and a filler outlet 10 are respectively arranged on the wall of the suspension removing area 4 opposite to the material inlet 5, and the position of the filler outlet 10 is higher than that of the water phase outlet 6;

the filler outlet 10 is connected with a filler regeneration system through a filler conveying pipe 15, a filler cleaning liquid inlet 14 is arranged on the filler conveying pipe 15, the filler regeneration system comprises a filler regeneration reactor 16, the filler regeneration reactor 16 comprises an outer cylinder 17 and an inner cylinder 18, the inner cylinder 18 is a combined U-shaped cylinder with a large upper part and a small lower part, a cone and a circular through shape, the top of the combined U-shaped cylinder is open, the filler conveying pipe 15 is open above the inner cylinder 18, a micro-bubble generator II 19 is arranged at the bottom of the inner cylinder 18, a filler cleaning liquid outlet 20 is also arranged at the bottom of the inner cylinder 18, and a connecting pipeline leads to the outside of the; the inner cylinder 18 is communicated with the outer cylinder 17 through an opening at the top, the upper part of the outer cylinder 17 is also provided with a baffle 21 to prevent filler from being washed out upwards, the top is provided with a gas outlet II 22, the gas outlet II 22 is also connected with a micro-bubble generator II 19 through a dissolved gas pump II 23, the bottom of the outer cylinder 17 is provided with a filler outlet connected with a filler circulating pipe 26, the side surface of the filler circulating pipe 26 is connected with a compressor 25, the tail end of the filler circulating pipe 26 is connected with a filler buffer tank 27, and the bottom end of the filler buffer tank 27 is provided with an outlet connected with a suspended matter; and a gas outlet III 28 is arranged at the top of the packing buffer tank 27, and a valve I13, a valve II 24 and a valve III 29 are respectively arranged on the packing conveying pipe 15, the packing circulating pipe 26 and between the packing buffer tank 27 and the suspended matter remover 1.

Example 2

The apparatus of example 1 was used to perform a continuous treatment of aqueous contaminated oil with suspended matter, and table 1 shows the properties of the raw material to be treated.

TABLE 1

The material to be treated in the table 1 enters a suspended matter remover 1, enters a homogenizing bin 2 of the suspended matter remover 1 through a material inlet 5, suspended matter and water phase in the material to be treated float upwards under the action of a micro-bubble generator I9 arranged at the bottom of the homogenizing bin 2, the suspended matter in the floating process is homogenized, then the material enters a suspended matter removing area 4 on the upper portion, and the suspended matter is adsorbed and separated under the action of adsorption filler. The top that adsorbs the filler sets up clamp plate 11, and the space on clamp plate 11 upper portion is the gas-liquid separation district, and the gas that separates gets into dissolved air pump I12 pressurization after gas outlet I8 discharges, and the microbubble generator I9 that reentrants takes place the microbubble in succession. The liquid separated by gas-liquid is discharged through a water phase outlet 6 arranged on the side wall of the homogenizing bin 2, and the adsorption filler is discharged from a filler outlet 10 arranged on the wall of the homogenizing bin.

The adsorption filler enters the filler regeneration system through the filler outlet 10 and the filler conveying pipe 15, and the filler cleaning solution is injected into the filler conveying pipe 15 from the filler cleaning solution inlet 14. The adsorption filler entering the filler regeneration system firstly enters the inner cylinder 18 of the filler regeneration reactor 16, and under the action of microbubbles generated by the microbubble generator II 19 arranged at the bottom of the inner cylinder 18, the adsorption filler continuously moves in the filler cleaning solution in the inner cylinder 18, and the cleaning and regeneration of the adsorption filler are completed in the process. After the micro-bubbles grow up, the micro-bubbles are separated by the upper part of the inner cylinder, enter a micro-bubble generator II 19 through a gas outlet II 22 and a dissolved gas pump II 23, and continuously generate the micro-bubbles. The regenerated adsorption filler enters the outer cylinder 17 and enters the filler circulating pipe 26 through a filler outlet arranged at the bottom, the filler is sent to the filler buffer tank 27 under the action of the blast air of the compressor 25, and the filler in the filler buffer tank 27 can be continuously or intermittently added to the suspended matter removing area 4 of the suspended matter remover 1.

The gas introduced into the microbubble generator I9 and the microbubble generator II 19 adopts nitrogen. Volume ratio (Nm) of aeration of microbubble generator I9 to feed of material to be treated³/h：m³H) 60: 1; volume ratio (Nm) of ventilation volume of microbubble generator II 19 to filler cleaning fluid³/h：m³H) is 800:1, the gas volume being based on the gas volume in the standard state.

The operating conditions of the suspension removal system were as follows: the temperature is 85 ℃; the pressure was 1.5 MPa.

The operating conditions in the packing regeneration reactor of the packing regeneration system were as follows: the temperature is 60 ℃ and the pressure is 0.9 MPa.

The operating conditions of the packed surge tank were as follows: the temperature was 40 ℃ and the pressure was 1.0 MPa.

The filler is conveyed in the filler circulating pipe by means of gas impact force generated by a compressor, and the pressure of the filler circulating pipe is 1.8 MPaG; the conveying gas speed is 22-23 m/s.

After the treatment by the method, the removal of suspended matters and the oil-water separation in the material to be treated are completed simultaneously, and the continuous regeneration and continuous feeding and discharging of the adsorption filler are realized. Through analysis, the salt content of the obtained oil phase is 2.88-2.97 mg/L, the water content is 6400-4860 ppm, the oil content of the water phase is 0.41-0.43 wt%, suspended matters in the water phase and the oil phase cannot be seen, the suspended matters are respectively 0.0038% and 0.0015% through measurement, and all packing layers of the device are not blocked in the operation process.

Example 3

The apparatus of example 1 was used for continuous treatment of heavy crude oil with suspended matter removed and for continuous regeneration of the adsorbent packing. Table 2 shows the properties of the raw materials to be treated.

TABLE 2

The material to be treated in the table 1 enters a suspended matter remover 1, enters a homogenizing bin 2 of the suspended matter remover 1 through a material inlet 5, suspended matter and water phase in the material to be treated float upwards under the action of a micro-bubble generator I9 arranged at the bottom of the homogenizing bin 2, the suspended matter in the floating process is homogenized, then the material enters a suspended matter removing area 4 on the upper portion, and the suspended matter is adsorbed and separated under the action of adsorption filler. The top that adsorbs the filler sets up clamp plate 11, and the space on clamp plate 11 upper portion is the gas-liquid separation district, and the gas that separates gets into dissolved air pump I12 pressurization after gas outlet I8 discharges, and the microbubble generator I9 that reentrants takes place the microbubble in succession. The liquid separated by gas-liquid is discharged through a water phase outlet 6 arranged on the side wall of the homogenizing bin 2, and the adsorption filler is discharged from a filler outlet 10 arranged on the wall of the homogenizing bin.

The adsorption filler enters the filler regeneration system through the filler outlet 10 and the filler conveying pipe 15, and the filler cleaning solution is injected into the filler conveying pipe 15 from the filler cleaning solution inlet 14. The adsorption filler entering the filler regeneration system firstly enters the inner cylinder 18 of the filler regeneration reactor 16, and under the action of microbubbles generated by the microbubble generator II 19 arranged at the bottom of the inner cylinder 18, the adsorption filler continuously moves in the filler cleaning solution in the inner cylinder 18, and the cleaning and regeneration of the adsorption filler are completed in the process. After the micro-bubbles grow up, the micro-bubbles are separated by the upper part of the inner cylinder, enter a micro-bubble generator II 19 through a gas outlet II 22 and a dissolved gas pump II 23, and continuously generate the micro-bubbles. The regenerated adsorption filler enters the outer cylinder 17 and enters the filler circulating pipe 26 through a filler outlet arranged at the bottom, the filler is sent to the filler buffer tank 27 under the action of the blast air of the compressor 25, and the filler in the filler buffer tank 27 can be continuously or intermittently added to the suspended matter removing area 4 of the suspended matter remover 1.

The gas introduced into the microbubble generator I9 and the microbubble generator II 19 adopts nitrogen. Volume ratio (Nm) of aeration of microbubble generator I9 to feed of material to be treated³/h：m³H) is 100: 1; volume ratio (Nm) of ventilation volume of microbubble generator II 19 to filler cleaning fluid³/h：m³H) 1200:1, wherein the gas volume is based on the gas volume in the standard state.

The operating conditions of the suspension removal system were as follows: the temperature is 95 ℃; the pressure was 1.2 MPa.

The operating conditions in the packing regeneration reactor of the packing regeneration system were as follows: the temperature is 60 ℃ and the pressure is 0.6 MPa.

The operating conditions of the packed surge tank were as follows: the temperature was 40 ℃ and the pressure was 1.0 MPa.

The filler is conveyed in the filler circulating pipe by means of gas impact force generated by a compressor, and the pressure of the filler circulating pipe is 1.5 MPaG; the conveying gas speed is 16-17 m/s.

After the treatment by the method, the removal of suspended matters and the oil-water separation in the material to be treated are completed simultaneously, and the continuous regeneration and continuous feeding and discharging of the adsorption filler are realized. Through analysis, the salt content of the obtained oil phase is 2.34-2.55 mg/L, the water content is 4200-4760 ppm, the oil content of the water phase is 0.32-0.33 wt%, suspended matters in the water phase and the oil phase cannot be seen, and are respectively 0.0031% and 0.0012% through measurement, and all packing layers of the device are not blocked in the operation process.