High temperature suspension energy-saving oily mud and sand pretreatment equipment

Abstract

The present invention discloses a high-temperature suspension energy-saving oil-containing mud and sand pretreatment equipment, including a pretreatment tank, a waste heat boiler, a high-pressure pump, a hot water pipeline, a steam pipeline, a flue gas pipeline, a dirty oil delivery pipeline, a mud and sand delivery pipeline, a strong stirring mechanism and a solid-liquid-gas three-phase comprehensive separator; the pretreatment tank includes a tank shell, and the tank shell includes a porcelain layer, an iron wall inner layer, an iron wall outer layer and a thermal insulation layer from the inside to the outside; the strong stirring mechanism includes a two-pole motor, a pulley, a belt, a twisted shaft, an upper bearing, a lower bearing, an upper bearing seat, a lower bearing seat and a reamer; the solid-liquid-gas three-phase comprehensive separator includes a solid-liquid-gas three-phase separation tank and a mud and sand auger conveyor. The present invention converts oil-containing mud and sand into pure oil, water and mud and sand by combining high-temperature and high-speed suspension with inclined surface sedimentation separation, saves land resources and energy, does not cause pollution to the atmosphere, soil and groundwater, and has significant economic and environmental benefits.

Description

Technical Field

[0001] The invention relates to the field of environmental protection, and in particular to high-temperature suspended energy-saving oil-containing mud and sand pretreatment equipment. Background Art

[0002] Oil sludge is a polluted waste generated during the production of crude oil. It mainly comes from the bottom mud of oil tanks, sedimentation tanks, sewage tanks, and oil separators at transfer stations and joint stations, as well as oily sludge generated by drilling, operations, and pipeline perforation. For a long time, the treatment of oil sludge has been a very difficult technical problem. In the face of a large amount of oil sludge, it is usually simply piled in the open air or buried underground, which not only occupies a large area of ​​land resources, but also causes serious pollution to the atmosphere, soil, and groundwater, and damages the ecological environment. Summary of the invention

[0003] In order to overcome the defects of the prior art, the present invention provides a high-temperature suspended energy-saving oil-containing mud and sand pretreatment equipment.

[0004] The technical scheme is as follows: high-temperature suspended energy-saving oil-containing mud and sand pretreatment equipment, including a pretreatment tank, a waste heat boiler, a high-pressure pump, a hot water pipeline, a steam pipeline, a flue gas pipeline, a dirty oil conveying pipeline, a mud and sand conveying pipeline, a strong stirring mechanism and a solid-liquid-gas three-phase comprehensive separator; the pretreatment tank includes a tank shell, and the tank shell includes a porcelain layer, an iron wall inner layer, an iron wall outer layer and a thermal insulation layer from the inside to the outside, and an inner and outer iron wall annulus is arranged between the iron wall inner layer and the iron wall outer layer; the top of the tank shell is provided with a mounting port, the upper part of the tank shell is provided with a flue gas outlet pipe, a dirty oil outlet pipe and a mud and sand outlet pipe arranged from high to low and penetrating the tank shell, and the middle and lower part of the tank shell is provided with a The oil mud and sand inlet pipe and the flue gas inlet pipe that penetrates the annulus of the inner and outer iron walls, the outer end of the flue gas inlet pipe is connected to the flue gas source of the waste heat boiler through the flue gas pipeline, the lower part of the tank shell is provided with a steam inlet pipe and hot water inlet pipes on both sides thereof, the outer end of the steam inlet pipe is connected to the steam source of the waste heat boiler through a high-pressure pump and a steam pipeline, the outer end of the hot water inlet pipe is connected to the hot water source of the waste heat boiler through a high-pressure pump and a hot water pipeline; the strong stirring mechanism comprises a two-pole motor, a pulley, a belt, a twisted shaft, an upper bearing, a lower bearing, an upper bearing seat, a lower bearing seat and a reamer, the two-pole motor is installed outside the tank shell, the upper end of the twisted shaft is connected to the output end of the two-pole motor through a pulley and a belt, the twisted shaft The upper bearing cooperates with the upper bearing seat fixed on the mounting port at the top of the tank shell, the lower end of the twist shaft cooperates with the lower bearing and the lower bearing cooperates with the lower bearing seat fixed on the bottom of the tank shell, the shaft seal of the twist shaft adopts a mechanical seal, and the twist shaft is equipped with a plurality of fan-shaped twist cutters arranged in a spiral shape on the shaft body located in the inner cavity of the pretreatment tank; the solid-liquid-gas three-phase comprehensive separator comprises a solid-liquid-gas three-phase separation tank and a mud and sand auger conveyor, the solid-liquid-gas three-phase separation tank comprises an inner tank, an outer tank and their common tank bottom and tank cover, the inner tank and the outer tank are both inverted truncated cone shape, and a uniform inner and outer tank annulus is provided between the inner tank and the outer tank, corresponding to the side of the inner tank A dirty oil inlet pipe and a mud and sand inlet pipe are provided on the upper tank cover. The dirty oil inlet pipe is connected to the dirty oil outlet pipe through a dirty oil conveying pipeline, and the mud and sand inlet pipe is connected to the mud and sand outlet pipe through a mud and sand conveying pipeline. An air release valve, a pressure gauge, a liquid level gauge and a thermometer are provided on the tank cover corresponding to the annulus of the inner and outer tanks. An oil and water overflow belt is circumferentially provided in the middle part of the inner tank side surface, an oil outlet valve is provided on the upper part of the outer tank side surface, a water outlet valve is provided on the lower part, and supporting legs are provided on the bottom. The mud and sand auger conveyor comprises a conveyor body and its driving motor. The front part of the auger conveyor body is provided with a sand inlet which crosses the sides of the inner and outer tanks and enters the lower part of the inner tank cavity. A sand outlet is provided at the rear of the auger conveyor body, and an insulation sleeve is provided on the outer periphery of the outer tank.

[0005] The above technical solution can be further optimized as follows:

[0006] The steam inlet pipe passes through the tank shell horizontally, and 12 fan-shaped nozzles arranged in a ring are arranged at the end of the steam inlet pipe in the inner cavity of the pretreatment tank, which form a trumpet-shaped fountain jet when spraying steam upward.

[0007] The two-pole motor is 11KW.

[0008] The included angle between the reamer and the reamer shaft is 28 degrees to 31 degrees.

[0009] The thickness of the tile layer is 1 cm.

[0010] The ceramic layer is connected to the inner layer of the iron wall by bolts, the heads of the bolts are embedded in the ceramic layer, and the screws are tightened with nuts after passing through the inner layer of the iron wall.

[0011] The angle between the oil-containing mud and sand inlet pipe and the side wall of the pretreatment tank shell is 45 degrees; the angle between the side generatrix and the vertical line of the inverted truncated cone-shaped inner tank and outer tank of the solid-liquid-gas three-phase separation tank is 45 degrees.

[0012] The oil-water overflow zone on the side of the inner tank of the solid-liquid-gas three-phase separation tank is 50 cm below the top thereof, and the oil-water overflow zone is a zigzag zone, and adjacent zigzags form oil-water overflow holes.

[0013] The insulation layer and the insulation sleeve are made of 5 cm thick insulation cotton.

[0014] At the same time, the present invention also provides a high-temperature suspended energy-saving oil-containing mud and sand pretreatment method according to the core idea of ​​the above technical solution, namely: the oil-containing mud and sand that reaches a high temperature of more than 99 degrees under the combined effect of pressurized hot water, pressurized steam and heating and insulation measures are vigorously stirred to form a high-speed suspension, so that the oil-containing mud and sand are completely expanded, and the oil wrapped in the mud and sand is completely released, and then the oil, water and mud and sand are layered by inclined sedimentation and drained for separation.

[0015] Compared with the prior art, the present invention mainly has the following beneficial technical effects:

[0016] 1. Through the technical means of combining high-temperature and high-speed suspension with inclined surface sedimentation separation, the mixed state of oil-containing mud and sand is truly transformed into a pure oil state, water state and mud and sand state, each of which is used in its proper place and fully utilized. It will not occupy precious land resources, nor will it cause pollution to the atmosphere, soil and groundwater, and has significant economic and environmental benefits.

[0017] 2. The pretreatment tank shell has a unique structure, the surface of the porcelain layer is smooth, the contact resistance with mud and sand is small, it is particularly wear-resistant, and it is conducive to maintaining temperature stability; the inner and outer iron wall annuli provide a reliable accommodation space and heat transfer medium for high-temperature flue gas; the insulation layer plays a good barrier role in preventing heat dissipation.

[0018] 3. The 95-97 degree pressurized hot water sprayed into the pretreatment tank is sufficient to maintain 99-101 degrees with the cooperation of pressurized steam and 200 degree flue gas. The oily mud and sand that are expanded by the hot water are cut vertically and horizontally by the cutter carried by the reel driven by the high-speed two-pole motor to form a high-temperature and high-speed suspended state. The trumpet-shaped fountain jet formed by the 12 fan-shaped nozzles arranged in a ring spraying steam upwards strongly promotes and maintains this suspended state, and effectively prevents the dense mud and sand from sinking, allowing the oil wrapped in the mud and sand to be completely released.

[0019] 4. The solid-liquid-gas three-phase integrated separator is uniquely designed. The inner and outer tanks of the solid-liquid-gas three-phase separation tank are both inverted frustum-shaped. The mud and sand slide down the 45-degree slope of the inner tank, with good sedimentation effect. The mud and sand auger conveyor efficiently sends the mud and sand at the bottom out of the tank; the serrated oil-water overflow belt can ensure that the oil and water overflow is stable and smooth; the annular space between the inner and outer tanks stores oil and water, which is economical and heat-insulating, and the separation of oil and water is simple and easy; the external insulation sleeve enhances the insulation effect.

[0020] 5. Hot water, steam and flue gas all come from waste heat boilers, with significant energy-saving effects.

[0021] 6. The production cost is low and the maintenance is easy, which is suitable for wide promotion and application in the pretreatment of oily mud and sand. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the external structure of the pretreatment tank of the present invention;

[0023] Figure 2 This is a schematic diagram of the longitudinal section structure of the pretreatment tank of the present invention;

[0024] Figure 3 It is a schematic diagram of the structural layout of the solid-liquid-gas three-phase comprehensive separator of the present invention;

[0025] In the figure: 1-pretreatment tank, 2-two-pole motor, 3-pulley, 4-belt, 5-smoke outlet pipe, 6-dirty oil outlet pipe, 7-mud and sand outlet pipe, 8-oil-containing mud and sand inlet pipe, 9-hot water inlet pipe, 10-steam inlet pipe, 11-smoke inlet pipe, 12-ceramic layer, 13-iron wall inner layer, 14-inner and outer iron wall annulus, 15-iron wall outer layer, 16-insulation layer, 17-upper bearing, 18-upper bearing seat, 19-reamer, 20-reamer shaft, 21-lower bearing, 22-lower bearing Seat, 23-dirty oil conveying pipeline, 24-dirty oil inlet pipe, 25-air release valve, 26-pressure gauge, 27-liquid level gauge, 28-thermometer, 29-outer tank, 30-annulus of inner and outer tanks, 31-inner tank, 32-oil outlet valve, 33-water outlet valve, 34-auger conveyor body, 35-driving motor, 36-sand outlet, 37-tank bottom, 38-support leg, 39-sand inlet, 40-oil and water overflow belt, 41-tank cover, 42-mud and sand inlet pipe, 43-mud and sand conveying pipeline. DETAILED DESCRIPTION

[0026] The present invention is described in detail below in conjunction with the embodiments and drawings.

[0027] Example 1

[0028] See also Figure 1 , Figure 2 and Figure 3The high-temperature suspended energy-saving oil-containing mud and sand pretreatment equipment includes a pretreatment tank 1, a waste heat boiler, a high-pressure pump, a hot water pipeline, a steam pipeline, a flue gas pipeline, a waste oil delivery pipeline 23, a mud and sand delivery pipeline 43, a strong stirring mechanism and a solid-liquid-gas three-phase integrated separator. The pretreatment tank includes a tank shell, which includes a porcelain layer 12, an iron wall inner layer 13, an iron wall outer layer 15 and an insulation layer 16 from the inside to the outside, and an inner and outer iron wall annulus 14 is provided between the iron wall inner layer 13 and the iron wall outer layer 15. A mounting port is provided at the top of the tank shell, a flue gas outlet pipe 5, a dirty oil outlet pipe 6 and a mud and sand outlet pipe 7 are arranged from high to low and penetrate the tank shell at the upper part of the tank shell, an oily mud and sand inlet pipe 8 penetrating the tank shell and a flue gas inlet pipe 5 penetrating to the inner and outer iron wall annuli 14 are provided at the middle and lower part of the tank shell, the outer end of the flue gas inlet pipe 5 is connected to the flue gas source of the waste heat boiler through a flue gas pipeline, a steam inlet pipe 10 and hot water inlet pipes 9 on both sides thereof are provided at the lower part of the tank shell, the outer end of the steam inlet pipe 10 is connected to the steam source of the waste heat boiler through a high-pressure pump and a steam pipeline, and the outer end of the hot water inlet pipe 9 is connected to the hot water source of the waste heat boiler through a high-pressure pump and a hot water pipeline. The strong stirring mechanism includes a two-pole motor 2, a pulley 3, a belt 4, a twisted shaft 20, an upper bearing 17, a lower bearing 21, an upper bearing seat 18, a lower bearing seat 22 and a reamer 19. The two-pole motor 2 is installed outside the tank shell. The upper end of the twisted shaft 20 is connected to the output end of the two-pole motor 2 through the pulley 3 and the belt 4. The twisted shaft 20 cooperates with the upper bearing 21 and the upper bearing 21 cooperates with the upper bearing seat 18 fixed to the mounting port at the top of the tank shell. The lower end of the twisted shaft 20 cooperates with the lower bearing 21 and the lower bearing 21 cooperates with the lower bearing seat 22 fixed to the bottom of the tank shell. The shaft seal of the twisted shaft 20 adopts a mechanical seal. The twisted shaft 20 is equipped with a plurality of fan-shaped reamer 19 arranged in a spiral shape on the shaft body of the twisted shaft 20 in the inner cavity of the pretreatment tank 1. The solid-liquid-gas three-phase integrated separator includes a solid-liquid-gas three-phase separation tank and a mud-sand auger conveyor. The solid-liquid-gas three-phase separation tank includes an inner tank 31, an outer tank 29 and a common tank bottom 37 and a tank cover 41. The inner tank 31 and the outer tank 29 are both inverted truncated cones. A uniform inner and outer tank annulus 30 is provided between the inner tank 31 and the outer tank 29. A dirty oil inlet pipe 24 and a mud-sand inlet pipe 42 are provided on the tank cover 41 on the upper side of the inner tank 31. The dirty oil inlet pipe 24 is connected to the dirty oil outlet pipe 6 through the dirty oil conveying pipeline 23. The mud-sand inlet pipe 42 is connected to the mud-sand outlet pipe 7 through the mud-sand conveying pipeline 43. An air release valve 25, a pressure gauge 26, a liquid level gauge 27 and a thermometer 28 are provided on the tank cover 41 of the outer tank annulus 30; an oil-water overflow belt 40 is circumferentially provided in the middle of the side surface of the inner tank 31; an oil outlet valve 32 is provided on the upper part of the side surface of the outer tank 29, a water outlet valve 33 is provided on the lower part, and a support leg 38 is provided on the bottom; the mud and sand auger conveyor comprises an auger conveyor body 34 and a driving motor 35 thereof; the auger conveyor body 34 is provided with a sand inlet 39 at the front portion which crosses the sides of the inner and outer tanks and enters the lower part of the cavity of the inner tank 31; a sand outlet 36 is provided at the rear portion of the auger conveyor body 34; and an insulation sleeve is provided on the periphery of the outer tank 29.

[0029] Example 2

[0030] See also Figure 1 , Figure 2 and Figure 3The high-temperature suspended energy-saving oil-containing mud and sand pretreatment equipment includes a pretreatment tank 1, a waste heat boiler, a high-pressure pump, a hot water pipeline, a steam pipeline, a flue gas pipeline, a waste oil delivery pipeline 23, a mud and sand delivery pipeline 43, a strong stirring mechanism and a solid-liquid-gas three-phase integrated separator. The pretreatment tank includes a tank shell, which includes a porcelain layer 12, an iron wall inner layer 13, an iron wall outer layer 15 and an insulation layer 16 from the inside to the outside, and an inner and outer iron wall annulus 14 is provided between the iron wall inner layer 13 and the iron wall outer layer 15. A mounting port is provided at the top of the tank shell, a flue gas outlet pipe 5, a dirty oil outlet pipe 6 and a mud and sand outlet pipe 7 are arranged from high to low and penetrate the tank shell at the upper part of the tank shell, an oily mud and sand inlet pipe 8 penetrating the tank shell and a flue gas inlet pipe 5 penetrating to the inner and outer iron wall annuli 14 are provided at the middle and lower part of the tank shell, the outer end of the flue gas inlet pipe 5 is connected to the flue gas source of the waste heat boiler through a flue gas pipeline, a steam inlet pipe 10 and hot water inlet pipes 9 on both sides thereof are provided at the lower part of the tank shell, the outer end of the steam inlet pipe 10 is connected to the steam source of the waste heat boiler through a high-pressure pump and a steam pipeline, and the outer end of the hot water inlet pipe 9 is connected to the hot water source of the waste heat boiler through a high-pressure pump and a hot water pipeline. The strong stirring mechanism includes a two-pole motor 2, a pulley 3, a belt 4, a twisted shaft 20, an upper bearing 17, a lower bearing 21, an upper bearing seat 18, a lower bearing seat 22 and a reamer 19. The two-pole motor 2 is installed outside the tank shell. The upper end of the twisted shaft 20 is connected to the output end of the two-pole motor 2 through the pulley 3 and the belt 4. The twisted shaft 20 cooperates with the upper bearing 21 and the upper bearing 21 cooperates with the upper bearing seat 18 fixed to the mounting port at the top of the tank shell. The lower end of the twisted shaft 20 cooperates with the lower bearing 21 and the lower bearing 21 cooperates with the lower bearing seat 22 fixed to the bottom of the tank shell. The shaft seal of the twisted shaft 20 adopts a mechanical seal. The twisted shaft 20 is equipped with a plurality of fan-shaped reamer 19 arranged in a spiral shape on the shaft body of the twisted shaft 20 in the inner cavity of the pretreatment tank 1. The solid-liquid-gas three-phase integrated separator includes a solid-liquid-gas three-phase separation tank and a mud-sand auger conveyor. The solid-liquid-gas three-phase separation tank includes an inner tank 31, an outer tank 29 and a common tank bottom 37 and a tank cover 41. The inner tank 31 and the outer tank 29 are both inverted truncated cones. A uniform inner and outer tank annulus 30 is provided between the inner tank 31 and the outer tank 29. A dirty oil inlet pipe 24 and a mud-sand inlet pipe 42 are provided on the tank cover 41 on the upper side of the inner tank 31. The dirty oil inlet pipe 24 is connected to the dirty oil outlet pipe 6 through the dirty oil conveying pipeline 23. The mud-sand inlet pipe 42 is connected to the mud-sand outlet pipe 7 through the mud-sand conveying pipeline 43. An air release valve 25, a pressure gauge 26, a liquid level gauge 27 and a thermometer 28 are provided on the tank cover 41 of the outer tank annulus 30; an oil-water overflow belt 40 is circumferentially provided in the middle of the side surface of the inner tank 31; an oil outlet valve 32 is provided on the upper part of the side surface of the outer tank 29, a water outlet valve 33 is provided on the lower part, and a support leg 38 is provided on the bottom; the mud and sand auger conveyor comprises an auger conveyor body 34 and a driving motor 35 thereof; the auger conveyor body 34 is provided with a sand inlet 39 at the front portion which crosses the sides of the inner and outer tanks and enters the lower part of the cavity of the inner tank 31; a sand outlet 36 is provided at the rear portion of the auger conveyor body 34; and an insulation sleeve is provided on the periphery of the outer tank 29.

[0031] The steam inlet pipe 10 passes through the tank shell horizontally, and 12 fan-shaped nozzles arranged in a ring are arranged at its end in the inner cavity of the pretreatment tank 1. When the steam is sprayed upward, a trumpet-shaped fountain jet is formed, which can prevent the dense mud and sand from sinking; and protect the lower bearing 21 to reduce heat damage.

[0032] Example 3

[0033] See also Figure 1 , Figure 2 and Figure 3The high-temperature suspended energy-saving oil-containing mud and sand pretreatment equipment includes a pretreatment tank 1, a waste heat boiler, a high-pressure pump, a hot water pipeline, a steam pipeline, a flue gas pipeline, a waste oil delivery pipeline 23, a mud and sand delivery pipeline 43, a strong stirring mechanism and a solid-liquid-gas three-phase integrated separator. The pretreatment tank includes a tank shell, which includes a porcelain layer 12, an iron wall inner layer 13, an iron wall outer layer 15 and an insulation layer 16 from the inside to the outside, and an inner and outer iron wall annulus 14 is provided between the iron wall inner layer 13 and the iron wall outer layer 15. A mounting port is provided at the top of the tank shell, a flue gas outlet pipe 5, a dirty oil outlet pipe 6 and a mud and sand outlet pipe 7 are arranged from high to low and penetrate the tank shell at the upper part of the tank shell, an oily mud and sand inlet pipe 8 penetrating the tank shell and a flue gas inlet pipe 5 penetrating to the inner and outer iron wall annuli 14 are provided at the middle and lower part of the tank shell, the outer end of the flue gas inlet pipe 5 is connected to the flue gas source of the waste heat boiler through a flue gas pipeline, a steam inlet pipe 10 and hot water inlet pipes 9 on both sides thereof are provided at the lower part of the tank shell, the outer end of the steam inlet pipe 10 is connected to the steam source of the waste heat boiler through a high-pressure pump and a steam pipeline, and the outer end of the hot water inlet pipe 9 is connected to the hot water source of the waste heat boiler through a high-pressure pump and a hot water pipeline. The strong stirring mechanism includes a two-pole motor 2, a pulley 3, a belt 4, a twisted shaft 20, an upper bearing 17, a lower bearing 21, an upper bearing seat 18, a lower bearing seat 22 and a reamer 19. The two-pole motor 2 is installed outside the tank shell. The upper end of the twisted shaft 20 is connected to the output end of the two-pole motor 2 through the pulley 3 and the belt 4. The twisted shaft 20 cooperates with the upper bearing 21 and the upper bearing 21 cooperates with the upper bearing seat 18 fixed to the mounting port at the top of the tank shell. The lower end of the twisted shaft 20 cooperates with the lower bearing 21 and the lower bearing 21 cooperates with the lower bearing seat 22 fixed to the bottom of the tank shell. The shaft seal of the twisted shaft 20 adopts a mechanical seal. The twisted shaft 20 is equipped with a plurality of fan-shaped reamer 19 arranged in a spiral shape on the shaft body of the twisted shaft 20 in the inner cavity of the pretreatment tank 1. The solid-liquid-gas three-phase integrated separator includes a solid-liquid-gas three-phase separation tank and a mud-sand auger conveyor. The solid-liquid-gas three-phase separation tank includes an inner tank 31, an outer tank 29 and a common tank bottom 37 and a tank cover 41. The inner tank 31 and the outer tank 29 are both inverted truncated cones. A uniform inner and outer tank annulus 30 is provided between the inner tank 31 and the outer tank 29. A dirty oil inlet pipe 24 and a mud-sand inlet pipe 42 are provided on the tank cover 41 on the upper side of the inner tank 31. The dirty oil inlet pipe 24 is connected to the dirty oil outlet pipe 6 through the dirty oil conveying pipeline 23. The mud-sand inlet pipe 42 is connected to the mud-sand outlet pipe 7 through the mud-sand conveying pipeline 43. An air release valve 25, a pressure gauge 26, a liquid level gauge 27 and a thermometer 28 are provided on the tank cover 41 of the outer tank annulus 30; an oil-water overflow belt 40 is circumferentially provided in the middle of the side surface of the inner tank 31; an oil outlet valve 32 is provided on the upper part of the side surface of the outer tank 29, a water outlet valve 33 is provided on the lower part, and a support leg 38 is provided on the bottom; the mud and sand auger conveyor comprises an auger conveyor body 34 and a driving motor 35 thereof; the auger conveyor body 34 is provided with a sand inlet 39 at the front portion which crosses the sides of the inner and outer tanks and enters the lower part of the cavity of the inner tank 31; a sand outlet 36 is provided at the rear portion of the auger conveyor body 34; and an insulation sleeve is provided on the periphery of the outer tank 29.

[0034] The steam inlet pipe 10 passes through the tank shell horizontally, and 12 fan-shaped nozzles arranged in a ring are arranged at the end of the steam inlet pipe 10 in the inner cavity of the pretreatment tank 1. When the steam is sprayed upward, a trumpet-shaped fountain jet is formed, which prevents the dense mud and sand from sinking; and protects the lower bearing 21 to reduce heat damage. The two-pole motor is 11KW to ensure that the reamer reaches a speed of 50 revolutions per second.

[0035] Example 4

[0036] See also Figure 1 , Figure 2 and Figure 3The high-temperature suspended energy-saving oil-containing mud and sand pretreatment equipment includes a pretreatment tank 1, a waste heat boiler, a high-pressure pump, a hot water pipeline, a steam pipeline, a flue gas pipeline, a waste oil delivery pipeline 23, a mud and sand delivery pipeline 43, a strong stirring mechanism and a solid-liquid-gas three-phase integrated separator. The pretreatment tank includes a tank shell, which includes a porcelain layer 12, an iron wall inner layer 13, an iron wall outer layer 15 and an insulation layer 16 from the inside to the outside, and an inner and outer iron wall annulus 14 is provided between the iron wall inner layer 13 and the iron wall outer layer 15. A mounting port is provided at the top of the tank shell, a flue gas outlet pipe 5, a dirty oil outlet pipe 6 and a mud and sand outlet pipe 7 are arranged from high to low and penetrate the tank shell at the upper part of the tank shell, an oily mud and sand inlet pipe 8 penetrating the tank shell and a flue gas inlet pipe 5 penetrating to the inner and outer iron wall annuli 14 are provided at the middle and lower part of the tank shell, the outer end of the flue gas inlet pipe 5 is connected to the flue gas source of the waste heat boiler through a flue gas pipeline, a steam inlet pipe 10 and hot water inlet pipes 9 on both sides thereof are provided at the lower part of the tank shell, the outer end of the steam inlet pipe 10 is connected to the steam source of the waste heat boiler through a high-pressure pump and a steam pipeline, and the outer end of the hot water inlet pipe 9 is connected to the hot water source of the waste heat boiler through a high-pressure pump and a hot water pipeline. The strong stirring mechanism includes a two-pole motor 2, a pulley 3, a belt 4, a twisted shaft 20, an upper bearing 17, a lower bearing 21, an upper bearing seat 18, a lower bearing seat 22 and a reamer 19. The two-pole motor 2 is installed outside the tank shell. The upper end of the twisted shaft 20 is connected to the output end of the two-pole motor 2 through the pulley 3 and the belt 4. The twisted shaft 20 cooperates with the upper bearing 21 and the upper bearing 21 cooperates with the upper bearing seat 18 fixed to the mounting port at the top of the tank shell. The lower end of the twisted shaft 20 cooperates with the lower bearing 21 and the lower bearing 21 cooperates with the lower bearing seat 22 fixed to the bottom of the tank shell. The shaft seal of the twisted shaft 20 adopts a mechanical seal. The twisted shaft 20 is equipped with a plurality of fan-shaped reamer 19 arranged in a spiral shape on the shaft body of the twisted shaft 20 in the inner cavity of the pretreatment tank 1. The solid-liquid-gas three-phase integrated separator includes a solid-liquid-gas three-phase separation tank and a mud-sand auger conveyor. The solid-liquid-gas three-phase separation tank includes an inner tank 31, an outer tank 29 and a common tank bottom 37 and a tank cover 41. The inner tank 31 and the outer tank 29 are both inverted truncated cones. A uniform inner and outer tank annulus 30 is provided between the inner tank 31 and the outer tank 29. A dirty oil inlet pipe 24 and a mud-sand inlet pipe 42 are provided on the tank cover 41 on the upper side of the inner tank 31. The dirty oil inlet pipe 24 is connected to the dirty oil outlet pipe 6 through the dirty oil conveying pipeline 23. The mud-sand inlet pipe 42 is connected to the mud-sand outlet pipe 7 through the mud-sand conveying pipeline 43. An air release valve 25, a pressure gauge 26, a liquid level gauge 27 and a thermometer 28 are provided on the tank cover 41 of the outer tank annulus 30; an oil-water overflow belt 40 is circumferentially provided in the middle of the side surface of the inner tank 31; an oil outlet valve 32 is provided on the upper part of the side surface of the outer tank 29, a water outlet valve 33 is provided on the lower part, and a support leg 38 is provided on the bottom; the mud and sand auger conveyor comprises an auger conveyor body 34 and a driving motor 35 thereof; the auger conveyor body 34 is provided with a sand inlet 39 at the front portion which crosses the sides of the inner and outer tanks and enters the lower part of the cavity of the inner tank 31; a sand outlet 36 is provided at the rear portion of the auger conveyor body 34; and an insulation sleeve is provided on the periphery of the outer tank 29.

[0037] The steam inlet pipe 10 passes through the tank shell horizontally, and 12 fan-shaped nozzles arranged in a ring are arranged at the end of the steam in the inner cavity of the pretreatment tank 1. When the steam is sprayed upward, a trumpet-shaped fountain jet is formed, which prevents the dense mud and sand from sinking; and protects the lower bearing 21 to reduce heat damage. The two-pole motor is 11KW to ensure that the reamer reaches a speed of 50 revolutions per second. The angle between the reamer 19 and the reamer shaft 20 is 28 to 31 degrees. At this angle, the reamer 19 has a small rotation resistance, a good effect of cutting oil-containing mud and sand, and a good mixing effect.

[0038] Example 5

[0039] See also Figure 1 , Figure 2 and Figure 3The high-temperature suspended energy-saving oil-containing mud and sand pretreatment equipment includes a pretreatment tank 1, a waste heat boiler, a high-pressure pump, a hot water pipeline, a steam pipeline, a flue gas pipeline, a waste oil delivery pipeline 23, a mud and sand delivery pipeline 43, a strong stirring mechanism and a solid-liquid-gas three-phase integrated separator. The pretreatment tank includes a tank shell, which includes a porcelain layer 12, an iron wall inner layer 13, an iron wall outer layer 15 and an insulation layer 16 from the inside to the outside, and an inner and outer iron wall annulus 14 is provided between the iron wall inner layer 13 and the iron wall outer layer 15. A mounting port is provided at the top of the tank shell, a flue gas outlet pipe 5, a dirty oil outlet pipe 6 and a mud and sand outlet pipe 7 are arranged from high to low and penetrate the tank shell at the upper part of the tank shell, an oily mud and sand inlet pipe 8 penetrating the tank shell and a flue gas inlet pipe 5 penetrating to the inner and outer iron wall annuli 14 are provided at the middle and lower part of the tank shell, the outer end of the flue gas inlet pipe 5 is connected to the flue gas source of the waste heat boiler through a flue gas pipeline, a steam inlet pipe 10 and hot water inlet pipes 9 on both sides thereof are provided at the lower part of the tank shell, the outer end of the steam inlet pipe 10 is connected to the steam source of the waste heat boiler through a high-pressure pump and a steam pipeline, and the outer end of the hot water inlet pipe 9 is connected to the hot water source of the waste heat boiler through a high-pressure pump and a hot water pipeline. The strong stirring mechanism includes a two-pole motor 2, a pulley 3, a belt 4, a twisted shaft 20, an upper bearing 17, a lower bearing 21, an upper bearing seat 18, a lower bearing seat 22 and a reamer 19. The two-pole motor 2 is installed outside the tank shell. The upper end of the twisted shaft 20 is connected to the output end of the two-pole motor 2 through the pulley 3 and the belt 4. The twisted shaft 20 cooperates with the upper bearing 21 and the upper bearing 21 cooperates with the upper bearing seat 18 fixed to the mounting port at the top of the tank shell. The lower end of the twisted shaft 20 cooperates with the lower bearing 21 and the lower bearing 21 cooperates with the lower bearing seat 22 fixed to the bottom of the tank shell. The shaft seal of the twisted shaft 20 adopts a mechanical seal. The twisted shaft 20 is equipped with a plurality of fan-shaped reamer 19 arranged in a spiral shape on the shaft body of the twisted shaft 20 in the inner cavity of the pretreatment tank 1. The solid-liquid-gas three-phase integrated separator includes a solid-liquid-gas three-phase separation tank and a mud-sand auger conveyor. The solid-liquid-gas three-phase separation tank includes an inner tank 31, an outer tank 29 and a common tank bottom 37 and a tank cover 41. The inner tank 31 and the outer tank 29 are both inverted truncated cones. A uniform inner and outer tank annulus 30 is provided between the inner tank 31 and the outer tank 29. A dirty oil inlet pipe 24 and a mud-sand inlet pipe 42 are provided on the tank cover 41 on the upper side of the inner tank 31. The dirty oil inlet pipe 24 is connected to the dirty oil outlet pipe 6 through the dirty oil conveying pipeline 23. The mud-sand inlet pipe 42 is connected to the mud-sand outlet pipe 7 through the mud-sand conveying pipeline 43. An air release valve 25, a pressure gauge 26, a liquid level gauge 27 and a thermometer 28 are provided on the tank cover 41 of the outer tank annulus 30; an oil-water overflow belt 40 is circumferentially provided in the middle of the side surface of the inner tank 31; an oil outlet valve 32 is provided on the upper part of the side surface of the outer tank 29, a water outlet valve 33 is provided on the lower part, and a support leg 38 is provided on the bottom; the mud and sand auger conveyor comprises an auger conveyor body 34 and a driving motor 35 thereof; the auger conveyor body 34 is provided with a sand inlet 39 at the front portion which crosses the sides of the inner and outer tanks and enters the lower part of the cavity of the inner tank 31; a sand outlet 36 is provided at the rear portion of the auger conveyor body 34; and an insulation sleeve is provided on the periphery of the outer tank 29.

[0040] The steam inlet pipe 10 passes through the tank shell horizontally, and 12 fan-shaped nozzles arranged in a ring are arranged at the end of the steam in the inner cavity of the pretreatment tank 1. When the steam is sprayed upward, a trumpet-shaped fountain jet is formed, which can prevent the dense mud and sand from sinking; secondly, it can protect the lower bearing 21 to reduce heat damage. The two-pole motor is 11KW to ensure that the reamer reaches a rotation speed of 50 revolutions per second. The angle between the reamer 19 and the reamer shaft 20 is 28 to 31 degrees. At this angle, the reamer 19 has a small rotation resistance, a good effect of cutting oil-containing mud and sand, and a good mixing effect. The thickness of the ceramic layer 12 is 1 cm, which can ensure sufficient high strength, sufficient wear resistance, and sufficient thermal insulation.

[0041] Example 6

[0042] See also Figure 1 , Figure 2 and Figure 3The high-temperature suspended energy-saving oil-containing mud and sand pretreatment equipment includes a pretreatment tank 1, a waste heat boiler, a high-pressure pump, a hot water pipeline, a steam pipeline, a flue gas pipeline, a waste oil delivery pipeline 23, a mud and sand delivery pipeline 43, a strong stirring mechanism and a solid-liquid-gas three-phase integrated separator. The pretreatment tank includes a tank shell, which includes a porcelain layer 12, an iron wall inner layer 13, an iron wall outer layer 15 and an insulation layer 16 from the inside to the outside, and an inner and outer iron wall annulus 14 is provided between the iron wall inner layer 13 and the iron wall outer layer 15. A mounting port is provided at the top of the tank shell, a flue gas outlet pipe 5, a dirty oil outlet pipe 6 and a mud and sand outlet pipe 7 are arranged from high to low and penetrate the tank shell at the upper part of the tank shell, an oily mud and sand inlet pipe 8 penetrating the tank shell and a flue gas inlet pipe 5 penetrating to the inner and outer iron wall annuli 14 are provided at the middle and lower part of the tank shell, the outer end of the flue gas inlet pipe 5 is connected to the flue gas source of the waste heat boiler through a flue gas pipeline, a steam inlet pipe 10 and hot water inlet pipes 9 on both sides thereof are provided at the lower part of the tank shell, the outer end of the steam inlet pipe 10 is connected to the steam source of the waste heat boiler through a high-pressure pump and a steam pipeline, and the outer end of the hot water inlet pipe 9 is connected to the hot water source of the waste heat boiler through a high-pressure pump and a hot water pipeline. The strong stirring mechanism includes a two-pole motor 2, a pulley 3, a belt 4, a twisted shaft 20, an upper bearing 17, a lower bearing 21, an upper bearing seat 18, a lower bearing seat 22 and a reamer 19. The two-pole motor 2 is installed outside the tank shell. The upper end of the twisted shaft 20 is connected to the output end of the two-pole motor 2 through the pulley 3 and the belt 4. The twisted shaft 20 cooperates with the upper bearing 21 and the upper bearing 21 cooperates with the upper bearing seat 18 fixed to the mounting port at the top of the tank shell. The lower end of the twisted shaft 20 cooperates with the lower bearing 21 and the lower bearing 21 cooperates with the lower bearing seat 22 fixed to the bottom of the tank shell. The shaft seal of the twisted shaft 20 adopts a mechanical seal. The twisted shaft 20 is equipped with a plurality of fan-shaped reamer 19 arranged in a spiral shape on the shaft body of the twisted shaft 20 in the inner cavity of the pretreatment tank 1. The solid-liquid-gas three-phase integrated separator includes a solid-liquid-gas three-phase separation tank and a mud-sand auger conveyor. The solid-liquid-gas three-phase separation tank includes an inner tank 31, an outer tank 29 and a common tank bottom 37 and a tank cover 41. The inner tank 31 and the outer tank 29 are both inverted truncated cones. A uniform inner and outer tank annulus 30 is provided between the inner tank 31 and the outer tank 29. A dirty oil inlet pipe 24 and a mud-sand inlet pipe 42 are provided on the tank cover 41 on the upper side of the inner tank 31. The dirty oil inlet pipe 24 is connected to the dirty oil outlet pipe 6 through the dirty oil conveying pipeline 23. The mud-sand inlet pipe 42 is connected to the mud-sand outlet pipe 7 through the mud-sand conveying pipeline 43. An air release valve 25, a pressure gauge 26, a liquid level gauge 27 and a thermometer 28 are provided on the tank cover 41 of the outer tank annulus 30; an oil-water overflow belt 40 is circumferentially provided in the middle of the side surface of the inner tank 31; an oil outlet valve 32 is provided on the upper part of the side surface of the outer tank 29, a water outlet valve 33 is provided on the lower part, and a support leg 38 is provided on the bottom; the mud and sand auger conveyor comprises an auger conveyor body 34 and a driving motor 35 thereof; the auger conveyor body 34 is provided with a sand inlet 39 at the front portion which crosses the sides of the inner and outer tanks and enters the lower part of the cavity of the inner tank 31; a sand outlet 36 is provided at the rear portion of the auger conveyor body 34; and an insulation sleeve is provided on the periphery of the outer tank 29.

[0043] The steam inlet pipe 10 passes through the tank shell horizontally, and 12 fan-shaped nozzles arranged in a ring are arranged at the end of the pretreatment tank 1. When the steam is sprayed upward, a trumpet-shaped fountain jet is formed, which prevents the dense mud and sand from sinking; and protects the lower bearing 21 to reduce heat damage. The two-pole motor is 11KW to ensure that the reamer reaches a rotation speed of 50 revolutions per second. The angle between the reamer 19 and the reamer shaft 20 is 28 to 31 degrees. At this angle, the reamer 19 has a small rotation resistance, a good effect of cutting oil-containing mud and sand, and a good mixing effect. The thickness of the ceramic layer 12 is 1 cm, which ensures sufficient high strength, sufficient wear resistance, and sufficient thermal insulation. The ceramic layer 12 is connected to the inner layer 13 of the iron wall by bolts. The head of the bolt is embedded in the ceramic layer 12, and the screw is tightened with a nut after passing through the inner layer 13 of the iron wall.

[0044] Example 7

[0045] See also Figure 1 , Figure 2 and Figure 3The high-temperature suspended energy-saving oil-containing mud and sand pretreatment equipment includes a pretreatment tank 1, a waste heat boiler, a high-pressure pump, a hot water pipeline, a steam pipeline, a flue gas pipeline, a waste oil delivery pipeline 23, a mud and sand delivery pipeline 43, a strong stirring mechanism and a solid-liquid-gas three-phase integrated separator. The pretreatment tank includes a tank shell, which includes a porcelain layer 12, an iron wall inner layer 13, an iron wall outer layer 15 and an insulation layer 16 from the inside to the outside, and an inner and outer iron wall annulus 14 is provided between the iron wall inner layer 13 and the iron wall outer layer 15. A mounting port is provided at the top of the tank shell, a flue gas outlet pipe 5, a dirty oil outlet pipe 6 and a mud and sand outlet pipe 7 are arranged from high to low and penetrate the tank shell at the upper part of the tank shell, an oily mud and sand inlet pipe 8 penetrating the tank shell and a flue gas inlet pipe 5 penetrating to the inner and outer iron wall annuli 14 are provided at the middle and lower part of the tank shell, the outer end of the flue gas inlet pipe 5 is connected to the flue gas source of the waste heat boiler through a flue gas pipeline, a steam inlet pipe 10 and hot water inlet pipes 9 on both sides thereof are provided at the lower part of the tank shell, the outer end of the steam inlet pipe 10 is connected to the steam source of the waste heat boiler through a high-pressure pump and a steam pipeline, and the outer end of the hot water inlet pipe 9 is connected to the hot water source of the waste heat boiler through a high-pressure pump and a hot water pipeline. The strong stirring mechanism includes a two-pole motor 2, a pulley 3, a belt 4, a twisted shaft 20, an upper bearing 17, a lower bearing 21, an upper bearing seat 18, a lower bearing seat 22 and a reamer 19. The two-pole motor 2 is installed outside the tank shell. The upper end of the twisted shaft 20 is connected to the output end of the two-pole motor 2 through the pulley 3 and the belt 4. The twisted shaft 20 cooperates with the upper bearing 21 and the upper bearing 21 cooperates with the upper bearing seat 18 fixed to the mounting port at the top of the tank shell. The lower end of the twisted shaft 20 cooperates with the lower bearing 21 and the lower bearing 21 cooperates with the lower bearing seat 22 fixed to the bottom of the tank shell. The shaft seal of the twisted shaft 20 adopts a mechanical seal. The twisted shaft 20 is equipped with a plurality of fan-shaped reamer 19 arranged in a spiral shape on the shaft body of the twisted shaft 20 in the inner cavity of the pretreatment tank 1. The solid-liquid-gas three-phase integrated separator includes a solid-liquid-gas three-phase separation tank and a mud-sand auger conveyor. The solid-liquid-gas three-phase separation tank includes an inner tank 31, an outer tank 29 and a common tank bottom 37 and a tank cover 41. The inner tank 31 and the outer tank 29 are both inverted truncated cones. A uniform inner and outer tank annulus 30 is provided between the inner tank 31 and the outer tank 29. A dirty oil inlet pipe 24 and a mud-sand inlet pipe 42 are provided on the tank cover 41 on the upper side of the inner tank 31. The dirty oil inlet pipe 24 is connected to the dirty oil outlet pipe 6 through the dirty oil conveying pipeline 23. The mud-sand inlet pipe 42 is connected to the mud-sand outlet pipe 7 through the mud-sand conveying pipeline 43. An air release valve 25, a pressure gauge 26, a liquid level gauge 27 and a thermometer 28 are provided on the tank cover 41 of the outer tank annulus 30; an oil-water overflow belt 40 is circumferentially provided in the middle of the side surface of the inner tank 31; an oil outlet valve 32 is provided on the upper part of the side surface of the outer tank 29, a water outlet valve 33 is provided on the lower part, and a support leg 38 is provided on the bottom; the mud and sand auger conveyor comprises an auger conveyor body 34 and a driving motor 35 thereof; the auger conveyor body 34 is provided with a sand inlet 39 at the front portion which crosses the sides of the inner and outer tanks and enters the lower part of the cavity of the inner tank 31; a sand outlet 36 is provided at the rear portion of the auger conveyor body 34; and an insulation sleeve is provided on the periphery of the outer tank 29.

[0046] The steam inlet pipe 10 passes through the tank shell horizontally, and 12 fan-shaped nozzles arranged in a ring are arranged at the end of the pretreatment tank 1. When the steam is sprayed upward, a trumpet-shaped fountain jet is formed, which prevents the dense mud and sand from sinking; and protects the lower bearing 21 to reduce heat damage. The two-pole motor is 11KW to ensure that the reamer reaches a rotation speed of 50 revolutions per second. The angle between the reamer 19 and the reamer shaft 20 is 28 to 31 degrees. At this angle, the reamer 19 has a small rotation resistance, a good effect of cutting oil-containing mud and sand, and a good mixing effect. The thickness of the ceramic layer 12 is 1 cm, which ensures sufficient high strength, sufficient wear resistance, and sufficient thermal insulation. The ceramic layer 12 is connected to the inner layer 13 of the iron wall by bolts. The head of the bolt is embedded in the ceramic layer 12, and the screw is tightened with a nut after passing through the inner layer 13 of the iron wall. The angle between the oil-containing mud and sand inlet pipe 8 and the side wall of the pretreatment tank 1 is 45 degrees to ensure smooth feeding; the inverted truncated cone-shaped inner tank 31 and outer tank 29 of the solid-liquid-gas three-phase separation tank have a side generatrix and a vertical line with an angle of 45 degrees to ensure that the mud and sand slide down steadily and enhance the sedimentation effect.

[0047] Example 8

[0048] See also Figure 1 , Figure 2 and Figure 3The high-temperature suspended energy-saving oil-containing mud and sand pretreatment equipment includes a pretreatment tank 1, a waste heat boiler, a high-pressure pump, a hot water pipeline, a steam pipeline, a flue gas pipeline, a waste oil delivery pipeline 23, a mud and sand delivery pipeline 43, a strong stirring mechanism and a solid-liquid-gas three-phase integrated separator. The pretreatment tank includes a tank shell, which includes a porcelain layer 12, an iron wall inner layer 13, an iron wall outer layer 15 and an insulation layer 16 from the inside to the outside, and an inner and outer iron wall annulus 14 is provided between the iron wall inner layer 13 and the iron wall outer layer 15. A mounting port is provided at the top of the tank shell, a flue gas outlet pipe 5, a dirty oil outlet pipe 6 and a mud and sand outlet pipe 7 are arranged from high to low and penetrate the tank shell at the upper part of the tank shell, an oily mud and sand inlet pipe 8 penetrating the tank shell and a flue gas inlet pipe 5 penetrating to the inner and outer iron wall annuli 14 are provided at the middle and lower part of the tank shell, the outer end of the flue gas inlet pipe 5 is connected to the flue gas source of the waste heat boiler through a flue gas pipeline, a steam inlet pipe 10 and hot water inlet pipes 9 on both sides thereof are provided at the lower part of the tank shell, the outer end of the steam inlet pipe 10 is connected to the steam source of the waste heat boiler through a high-pressure pump and a steam pipeline, and the outer end of the hot water inlet pipe 9 is connected to the hot water source of the waste heat boiler through a high-pressure pump and a hot water pipeline. The strong stirring mechanism includes a two-pole motor 2, a pulley 3, a belt 4, a twisted shaft 20, an upper bearing 17, a lower bearing 21, an upper bearing seat 18, a lower bearing seat 22 and a reamer 19. The two-pole motor 2 is installed outside the tank shell. The upper end of the twisted shaft 20 is connected to the output end of the two-pole motor 2 through the pulley 3 and the belt 4. The twisted shaft 20 cooperates with the upper bearing 21 and the upper bearing 21 cooperates with the upper bearing seat 18 fixed to the mounting port at the top of the tank shell. The lower end of the twisted shaft 20 cooperates with the lower bearing 21 and the lower bearing 21 cooperates with the lower bearing seat 22 fixed to the bottom of the tank shell. The shaft seal of the twisted shaft 20 adopts a mechanical seal. The twisted shaft 20 is equipped with a plurality of fan-shaped reamer 19 arranged in a spiral shape on the shaft body of the twisted shaft 20 in the inner cavity of the pretreatment tank 1. The solid-liquid-gas three-phase integrated separator includes a solid-liquid-gas three-phase separation tank and a mud-sand auger conveyor. The solid-liquid-gas three-phase separation tank includes an inner tank 31, an outer tank 29 and a common tank bottom 37 and a tank cover 41. The inner tank 31 and the outer tank 29 are both inverted truncated cones. A uniform inner and outer tank annulus 30 is provided between the inner tank 31 and the outer tank 29. A dirty oil inlet pipe 24 and a mud-sand inlet pipe 42 are provided on the tank cover 41 on the upper side of the inner tank 31. The dirty oil inlet pipe 24 is connected to the dirty oil outlet pipe 6 through the dirty oil conveying pipeline 23. The mud-sand inlet pipe 42 is connected to the mud-sand outlet pipe 7 through the mud-sand conveying pipeline 43. An air release valve 25, a pressure gauge 26, a liquid level gauge 27 and a thermometer 28 are provided on the tank cover 41 of the outer tank annulus 30; an oil-water overflow belt 40 is circumferentially provided in the middle of the side surface of the inner tank 31; an oil outlet valve 32 is provided on the upper part of the side surface of the outer tank 29, a water outlet valve 33 is provided on the lower part, and a support leg 38 is provided on the bottom; the mud and sand auger conveyor comprises an auger conveyor body 34 and a driving motor 35 thereof; the auger conveyor body 34 is provided with a sand inlet 39 at the front portion which crosses the sides of the inner and outer tanks and enters the lower part of the cavity of the inner tank 31; a sand outlet 36 is provided at the rear portion of the auger conveyor body 34; and an insulation sleeve is provided on the periphery of the outer tank 29.

[0049] The steam inlet pipe 10 passes through the tank shell horizontally, and 12 fan-shaped nozzles arranged in a ring are arranged at the end of the pretreatment tank 1. When the steam is sprayed upward, a trumpet-shaped fountain jet is formed, which prevents the dense mud and sand from sinking; and protects the lower bearing 21 to reduce heat damage. The two-pole motor is 11KW to ensure that the reamer reaches a rotation speed of 50 revolutions per second. The angle between the reamer 19 and the reamer shaft 20 is 28 to 31 degrees. At this angle, the reamer 19 has a small rotation resistance, a good effect of cutting oil-containing mud and sand, and a good mixing effect. The thickness of the ceramic layer 12 is 1 cm, which ensures sufficient high strength, sufficient wear resistance, and sufficient thermal insulation. The ceramic layer 12 is connected to the inner layer 13 of the iron wall by bolts. The head of the bolt is embedded in the ceramic layer 12, and the screw is tightened with a nut after passing through the inner layer 13 of the iron wall. The angle between the oil-containing mud and sand inlet pipe 8 and the side wall of the pretreatment tank 1 is 45 degrees to ensure smooth feeding; the angle between the side generatrix and the vertical line of the inverted truncated cone-shaped inner tank 31 and the outer tank 29 of the solid-liquid-gas three-phase separation tank is 45 degrees to ensure that the mud and sand slide down steadily and enhance the sedimentation effect. The oil-water overflow belt 40 on the side of the inner tank 31 of the solid-liquid-gas three-phase separation tank is 50 cm below its top, which is conducive to maintaining a good stratification state of upper oil and lower water after overflow; the oil-water overflow belt 40 is a serrated belt, and adjacent serrations form oil-water overflow holes. This design can ensure that the oil-water overflow is stable and smooth, and the strength of the side of the inner tank 31 will not be significantly affected.

[0050] Example 9

[0051] See also Figure 1 , Figure 2 and Figure 3The high-temperature suspended energy-saving oil-containing mud and sand pretreatment equipment includes a pretreatment tank 1, a waste heat boiler, a high-pressure pump, a hot water pipeline, a steam pipeline, a flue gas pipeline, a waste oil delivery pipeline 23, a mud and sand delivery pipeline 43, a strong stirring mechanism and a solid-liquid-gas three-phase integrated separator. The pretreatment tank includes a tank shell, which includes a porcelain layer 12, an iron wall inner layer 13, an iron wall outer layer 15 and an insulation layer 16 from the inside to the outside, and an inner and outer iron wall annulus 14 is provided between the iron wall inner layer 13 and the iron wall outer layer 15. A mounting port is provided at the top of the tank shell, a flue gas outlet pipe 5, a dirty oil outlet pipe 6 and a mud and sand outlet pipe 7 are arranged from high to low and penetrate the tank shell at the upper part of the tank shell, an oily mud and sand inlet pipe 8 penetrating the tank shell and a flue gas inlet pipe 5 penetrating to the inner and outer iron wall annuli 14 are provided at the middle and lower part of the tank shell, the outer end of the flue gas inlet pipe 5 is connected to the flue gas source of the waste heat boiler through a flue gas pipeline, a steam inlet pipe 10 and hot water inlet pipes 9 on both sides thereof are provided at the lower part of the tank shell, the outer end of the steam inlet pipe 10 is connected to the steam source of the waste heat boiler through a high-pressure pump and a steam pipeline, and the outer end of the hot water inlet pipe 9 is connected to the hot water source of the waste heat boiler through a high-pressure pump and a hot water pipeline. The strong stirring mechanism includes a two-pole motor 2, a pulley 3, a belt 4, a twisted shaft 20, an upper bearing 17, a lower bearing 21, an upper bearing seat 18, a lower bearing seat 22 and a reamer 19. The two-pole motor 2 is installed outside the tank shell. The upper end of the twisted shaft 20 is connected to the output end of the two-pole motor 2 through the pulley 3 and the belt 4. The twisted shaft 20 cooperates with the upper bearing 21 and the upper bearing 21 cooperates with the upper bearing seat 18 fixed to the mounting port at the top of the tank shell. The lower end of the twisted shaft 20 cooperates with the lower bearing 21 and the lower bearing 21 cooperates with the lower bearing seat 22 fixed to the bottom of the tank shell. The shaft seal of the twisted shaft 20 adopts a mechanical seal. The twisted shaft 20 is equipped with a plurality of fan-shaped reamer 19 arranged in a spiral shape on the shaft body of the twisted shaft 20 in the inner cavity of the pretreatment tank 1. The solid-liquid-gas three-phase integrated separator includes a solid-liquid-gas three-phase separation tank and a mud-sand auger conveyor. The solid-liquid-gas three-phase separation tank includes an inner tank 31, an outer tank 29 and a common tank bottom 37 and a tank cover 41. The inner tank 31 and the outer tank 29 are both inverted truncated cones. A uniform inner and outer tank annulus 30 is provided between the inner tank 31 and the outer tank 29. A dirty oil inlet pipe 24 and a mud-sand inlet pipe 42 are provided on the tank cover 41 on the upper side of the inner tank 31. The dirty oil inlet pipe 24 is connected to the dirty oil outlet pipe 6 through the dirty oil conveying pipeline 23. The mud-sand inlet pipe 42 is connected to the mud-sand outlet pipe 7 through the mud-sand conveying pipeline 43. An air release valve 25, a pressure gauge 26, a liquid level gauge 27 and a thermometer 28 are provided on the tank cover 41 of the outer tank annulus 30; an oil-water overflow belt 40 is circumferentially provided in the middle of the side surface of the inner tank 31; an oil outlet valve 32 is provided on the upper part of the side surface of the outer tank 29, a water outlet valve 33 is provided on the lower part, and a support leg 38 is provided on the bottom; the mud and sand auger conveyor comprises an auger conveyor body 34 and a driving motor 35 thereof; the auger conveyor body 34 is provided with a sand inlet 39 at the front portion which crosses the sides of the inner and outer tanks and enters the lower part of the cavity of the inner tank 31; a sand outlet 36 is provided at the rear portion of the auger conveyor body 34; and an insulation sleeve is provided on the periphery of the outer tank 29.

[0052] The steam inlet pipe 10 passes through the tank shell horizontally, and 12 fan-shaped nozzles arranged in a ring are arranged at the end of the pretreatment tank 1. When the steam is sprayed upward, a trumpet-shaped fountain jet is formed, which prevents the dense mud and sand from sinking; and protects the lower bearing 21 to reduce heat damage. The two-pole motor is 11KW to ensure that the reamer reaches a rotation speed of 50 revolutions per second. The angle between the reamer 19 and the reamer shaft 20 is 28 to 31 degrees. At this angle, the reamer 19 has a small rotation resistance, a good effect of cutting oil-containing mud and sand, and a good mixing effect. The thickness of the ceramic layer 12 is 1 cm, which ensures sufficient high strength, sufficient wear resistance, and sufficient thermal insulation. The ceramic layer 12 is connected to the inner layer 13 of the iron wall by bolts. The head of the bolt is embedded in the ceramic layer 12, and the screw is tightened with a nut after passing through the inner layer 13 of the iron wall. The angle between the oil-containing mud and sand inlet pipe 8 and the side wall of the pretreatment tank 1 is 45 degrees to ensure smooth feeding; the angle between the side generatrix and the vertical line of the inverted truncated cone-shaped inner tank 31 and outer tank 29 of the solid-liquid-gas three-phase separation tank is 45 degrees to ensure that the mud and sand slide down steadily and enhance the sedimentation effect. The oil-water overflow belt 40 on the side of the inner tank 31 of the solid-liquid-gas three-phase separation tank is 50 cm below its top, which is conducive to maintaining a good stratification state of oil and water after overflow; the oil-water overflow belt 40 is a serrated belt, and adjacent serrations form oil-water overflow holes. This design can ensure that the oil and water overflow is stable and smooth, and the strength of the side of the inner tank 31 will not be significantly affected. The material of the above-mentioned insulation layer 16 and insulation sleeve is 5 cm thick insulation cotton, which not only has a good insulation effect, but is also non-toxic, harmless and pollution-free.

[0053] Example 10

[0054] A high-temperature suspended energy-saving oil-containing mud and sand pretreatment method, namely: the oil-containing mud and sand that reaches a high temperature of more than 99 degrees under the combined effect of pressurized hot water, pressurized steam and heating and insulation measures are vigorously stirred to form a high-speed suspension, so that the oil-containing mud and sand are completely expanded, and the oil wrapped in the mud and sand is completely released, and then the oil, water and mud and sand are separated into layers by inclined sedimentation and drained for separation.

[0055] The basic working process of the present invention is as follows:

[0056] The high-temperature suspended energy-saving oily mud and sand pretreatment equipment is installed in place, and the oily mud and sand pretreatment process starts to run. While the oily mud and sand are sent into the inner cavity of the pretreatment tank 1 through the oily mud and sand inlet pipe 8, 95 to 97 degrees of pressurized hot water are sprayed through the hot water inlet pipe 9, and steam is sprayed through the steam inlet pipe 10 and 12 fan-shaped nozzles. 200 degrees of flue gas is introduced from the flue gas inlet pipe 5 to the inner and outer iron wall annuli 14 to increase the temperature, so that the water temperature is maintained at 99 to 101 degrees. The oily mud and sand that are swollen by the hot water are cut into a high-temperature and high-speed suspended state by the reamer 19. The water-containing mud and sand flow out from the mud and sand outlet pipe 7 and reach the mud and sand inlet pipe 42 through the mud and sand conveying pipeline 43. The water-containing waste oil flows out from the waste oil outlet pipe 6 and reaches the waste oil inlet pipe 24 through the waste oil conveying pipeline 23; in the solid-liquid-gas three-phase separation On the 45-degree side of the inner tank 31, the mud and sand slide down in an orderly manner and gradually settle to the tank bottom 37. The mud and sand accumulated at the tank bottom 37 enter the auger conveyor body 34 from the sand inlet 39 and are output outside the tank. The mud and sand are discharged from the sand outlet 36 and enter the subsequent dehydration link. The water and dirty oil above the mud and sand in the inner tank 31 enter the inner and outer tank annuli 30 through the oil-water overflow holes on the zigzag oil-water overflow belt 40; stratification is formed in the inner and outer tank annuli 30, the oil in the upper layer is released by the oil outlet valve 32 for recovery and treatment, and the water in the lower layer is released by the water outlet valve 33 to enter the subsequent sewage treatment link, and a small amount of waste gas formed in the inner and outer tank annuli 30 is discharged by the vent valve 25.

Claims

1. High temperature suspension energy-saving oily mud and sand pretreatment equipment, characterized by: It includes a pretreatment tank, a waste heat boiler, a high-pressure pump, a hot water pipeline, a steam pipeline, a flue gas pipeline, a dirty oil conveying pipeline, a mud and sand conveying pipeline, a strong stirring mechanism and a solid-liquid-gas three-phase integrated separator; the pretreatment tank includes a tank shell, and the tank shell includes a porcelain layer, an iron wall inner layer, an iron wall outer layer and a thermal insulation layer from the inside to the outside, and an inner and outer iron wall annulus is arranged between the iron wall inner layer and the iron wall outer layer; the top of the tank shell is provided with a mounting port, and the upper part of the tank shell is provided with a flue gas outlet pipe, a dirty oil outlet pipe and a mud and sand outlet pipe arranged from high to low and penetrating the tank shell, and the middle and lower part of the tank shell is provided with an oil-containing mud and sand inlet pipe penetrating the tank shell and a flue gas outlet pipe penetrating the inner and outer iron wall annuli The outer end of the flue gas inlet pipe is connected to the flue gas source of the waste heat boiler through the flue gas pipeline. The lower part of the tank shell is provided with a steam inlet pipe and hot water inlet pipes on both sides thereof. The outer end of the steam inlet pipe is connected to the steam source of the waste heat boiler through a high-pressure pump and a steam pipeline. The outer end of the hot water inlet pipe is connected to the hot water source of the waste heat boiler through a high-pressure pump and a hot water pipeline. The strong stirring mechanism comprises a two-pole motor, a pulley, a belt, a twisted shaft, an upper bearing, a lower bearing, an upper bearing seat, a lower bearing seat and a reamer. The two-pole motor is installed outside the tank shell. The upper end of the twisted shaft is connected to the output end of the two-pole motor through a pulley and a belt. The twisted shaft cooperates with the upper bearing and the upper bearing is The upper bearing seat fixed on the mounting port at the top of the tank shell cooperates with the lower end of the twist shaft and the lower bearing cooperates with the lower bearing seat fixed on the bottom of the tank shell. The shaft seal of the twist shaft adopts a mechanical seal. The twist shaft is equipped with a plurality of spirally arranged fan-shaped cutters on the shaft body located in the inner cavity of the pretreatment tank. The solid-liquid-gas three-phase comprehensive separator includes a solid-liquid-gas three-phase separation tank and a mud and sand auger conveyor. The solid-liquid-gas three-phase separation tank includes an inner tank, an outer tank and their common tank bottom and tank cover. The inner tank and the outer tank are both inverted truncated cone shape. A uniform inner and outer tank annulus is provided between the inner tank and the outer tank, and a corresponding inner and outer tank annulus is provided on the tank cover on the upper part of the inner tank side. There are dirty oil inlet pipes and mud and sand inlet pipes. The dirty oil inlet pipe is connected to the dirty oil outlet pipe through a dirty oil conveying pipeline, and the mud and sand inlet pipe is connected to the mud and sand outlet pipe through a mud and sand conveying pipeline. An air release valve, a pressure gauge, a liquid level gauge and a thermometer are provided on the tank cover corresponding to the annulus of the inner and outer tanks. An oil-water overflow belt is provided in the circumferential direction of the middle part of the side of the inner tank. An oil outlet valve is provided on the upper part of the side of the outer tank, a water outlet valve is provided on the lower part, and a supporting leg is provided on the bottom. The mud and sand auger conveyor includes an auger conveyor body and its driving motor. The front part of the auger conveyor body is provided with a sand inlet, which crosses the sides of the inner and outer tanks and enters the lower part of the inner tank cavity. A sand outlet is provided at the rear of the auger conveyor body, and an insulation sleeve is provided on the periphery of the outer tank. The steam inlet pipe passes through the tank shell horizontally, and 12 fan-shaped nozzles arranged in a ring are arranged at the end of the steam inlet pipe in the inner cavity of the pretreatment tank, which form a trumpet-shaped fountain jet when spraying steam upward; The oil-water overflow zone on the inner tank side of the solid-liquid-gas three-phase separation tank is a sawtooth-shaped zone, and adjacent sawtooths form oil-water overflow holes.

2. The high-temperature suspension energy-saving oil-containing mud and sand pretreatment equipment according to claim 1 is characterized by: The two-pole motor is 11KW.

3. The high-temperature suspension energy-saving oil-containing mud and sand pretreatment equipment according to claim 2 is characterized by: The included angle between the reamer and the reamer shaft is 28 degrees to 31 degrees.

4. The high-temperature suspension energy-saving oil-containing mud and sand pretreatment equipment according to claim 3 is characterized by: The thickness of the tile layer is 1 cm.

5. The high-temperature suspension energy-saving oil-containing mud and sand pretreatment equipment according to claim 4 is characterized by: The ceramic layer is connected to the inner layer of the iron wall by bolts, the heads of the bolts are embedded in the ceramic layer, and the screws are tightened with nuts after passing through the inner layer of the iron wall.

6. The high-temperature suspension energy-saving oil-containing mud and sand pretreatment equipment according to claim 5 is characterized by: The angle between the oily mud and sand inlet pipe and the side wall of the pretreatment tank shell is 45 degrees; the angle between the side generatrix and the vertical line of the inverted truncated cone-shaped inner tank and outer tank of the solid-liquid-gas three-phase separation tank is 45 degrees.

7. The high-temperature suspension energy-saving oil-containing mud and sand pretreatment equipment according to claim 6 is characterized by: The insulation layer and the insulation sleeve are made of 5 cm thick insulation cotton.

8. A pretreatment method based on the high-temperature suspension energy-saving oil-containing mud and sand pretreatment equipment according to any one of claims 1 to 7, characterized in that: Under the combined effect of pressurized hot water, pressurized steam and heating and insulation measures, the oil-containing mud and sand reaches a temperature of over 99 degrees and is vigorously stirred to form a high-speed suspension, which makes the oil-containing mud and sand expand completely and the oil wrapped in the mud and sand is completely released. Then the oil, water and mud and sand are stratified by inclined sedimentation and separated by drainage.

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