32results about How to "Easy to extract oil" patented technology

The systems and methods recover oil from an emulsified waste stream. A coagulating agent and / or a flocculating agent, or both, are added to the emulsified waste stream to accelerate separation into an aqueous stream and a thickened emulsified stream. The coagulating agent can comprise alum. The flocculating agent can comprise a cationic polymer. Separation of the thickened emulsified stream into an oil-rich component, a second aqueous component, and a solid cake can be effected by mechanical separation in a centrifuge, filter, or press.

Disclosed herein is an economical method for efficiently drying the plant-derived biomass for which there has been no established method for disposal and reuse. This drying method does not impair the value of plant-derived biomass as a fuel. Disclosed also herein is a method for producing a biomass fuel from the plant-derived biomass which has been dried by the aforesaid method. The drying method consists of dehydrating (drying) plant-derived biomass in oil with heating and modifying it simultaneously. Drying in this way partly decomposes the plant-derived biomass, thereby yielding a good constituent for biomass fuel.

The invention discloses a digital automatic oil extraction control system, which comprises a pressure sensor, a load sensor, a displacement sensor, a voltage sensor and a current sensor. The load sensor, the displacement sensor, a pressure sensor, the voltage sensor and the current sensor are all connected with an analog module of a programmable controller; the programmable controller is wirelessly connected with an upper computer; and the programmable controller controls an oil extractor motor through a transducer. The system also comprises an automatic counterweight imbalance adjusting mechanism arranged on a walking beam; the automatic counterweight imbalance adjusting mechanism comprises a movable counterweight block, a slide rail for supporting the movable counterweight block to move, and a motor playing a driving role for adjusting and balancing the counterweight block; and the programmable controller is connected with the motor for adjusting and balancing the counterweight block on an oil extractor. On the one hand, the system can conveniently finish oil extraction; and on the other hand, the system can judge the underground fault in time and change the counterweight condition so as to improve the oil extraction efficiency and achieve the energy-saving effect.

The invention relates to a method for regulating and controlling microbial enhanced oil recovery. The method comprises the following steps: (1) analyzing a microbial community structure in oil deposit produced fluid and / or metabolic products in detection produced fluid by adopting a molecular biological method; (2) regulating a microbe to be injected into the oil deposit and / or a nutritious system corresponding to the microbe; (3) injecting the regulated microbe and / or the nutritious system corresponding to the microbe into the oil deposit by a water injection well; and (4) gathering crude oil by a corresponding beneficial producing well. Compared with the prior art, the method for regulating the microbial community structure in the oil deposit contributes to the direction evolution of oil recovery, can sufficiently play the performance of functional microbes, injects the nutritious system specifically, and avoids blindness in application of the nutritious system, thus the method is a scientific, economic and effective microbial oil recovery method.

The invention relates to a small-diameter tubular pump pump-passing depth checking perforating and pumping combined production method. The method includes adopting a perforating and pumping combined pump and a small-diameter gamma depth checking gauge, tripping in a standing valve along with a perforating and pumping combined tubing string and a pumping-down tool to a design position, tripping in the small-diameter gamma depth checking gauge for pump-passing depth checking, adjusting the tubing string to enable a perforating gun to align to a perforating formation, tripping in a pumping rod plunger and a blanking plug, performing pump bumping and well completion, then performing annulus pressure perforating, and starting to pump and produce after perforating. By the technology, the purposes for accurate located perforating of oil sheets and pumping after perforating are achieved, oil layers are protected effectively, well control safety in construction is improved, and technical support is provided for well-killing-free production of high-pressure oil wells and high-gas-oil-ratio oil wells.

The invention relates to a peanut kernel processing machine for squeezing peanut oil. The machine comprises a rack, a shell breaking device, a screening and drying channel, a stirring and peeling device, a separating channel and a feeding hopper; wherein the rack is divided into an upper rack and a lower rack; wherein a shell breaking cavity and a drying cavity are sequentially formed in the upperrack from top to bottom, the shell breaking device is installed in the shell breaking cavity, the feeding hopper is installed at the upper end of the shell breaking device, the screening and drying channel is formed in the drying cavity, a stirring cavity and a separating cavity are sequentially formed in the lower rack from left to right, the stirring and peeling device is installed in the stirring cavity, and the separating channel is formed in the separating cavity; shelling, peeling and crushing devices are combined together, the overall occupied area is reduced, the mode of peeling afterdrying is adopted, peanut seed coats are dry and crisp, and therefore the peanut seed coats can be easily separated from peanut kernels; oil can be pressed after the peanuts are processed in a smallworkshop, and the dried peanuts are crushed into peanut grains, so that subsequent oil pressing treatment is facilitated.

Disclosed herein is an economical method for efficiently drying the plant-derived biomass for which there has been no established method for disposal and reuse. This drying method does not impair the value of plant-derived biomass as a fuel. Disclosed also herein is a method for producing a biomass fuel from the plant-derived biomass which has been dried by the aforesaid method.The drying method consists of dehydrating (drying) plant-derived biomass in oil with heating and modifying it simultaneously. Drying in this way partly decomposes the plant-derived biomass, thereby yielding a good constituent for biomass fuel.

The invention discloses a tail pipe completion method by plugging an expandable casing on the top of a screen pipe. The scheme includes that after a starting device 6 in a completion string trips into the bottom of an underground intermediate casing 4, a base pipe 9 from a well head drives the starting device 6 to ascend along the expandable casing 1 to be expanded, so that the expandable casing 1 radially, permanently and plastically deforms, and multiple sections of rubber rings 5 on the expandable casing 1 are vulcanized and are compressed in an annulus between the outside of the expandable casing 1 and the intermediate casing 4. The tail pipe completion method has the advantages that the inner diameter of the tie-back casing can be increased after the expandable casing is expanded, later-stage oil recovery and operation are facilitated, and the rubber rings on the expandable casing plug complicated layers and prevent channeling of the head of a tail pipe.

The invention discloses a corn deep processing machine, in particular a corn breaking and embryo fetching machine. The breaking and embryo fetching machine comprises a feed hopper, and is characterized in that: a mill shell is arranged under the feed hopper; a raw material hopper is arranged under the mill shell; a quick grinding roller and a slow grinding roller respectively arranged on a main engine shaft A and a main engine shaft B are arranged in the mill shell; the main engine shaft A is connected with power input; one end of the main engine shaft A is provided with a main engine wheel, while the other end is provided with a transmission device; the main engine wheel is connected with a belt pulley which is arranged at one end of an impact shaft; and the impact shaft is provided with an impact machine connected with the raw material hopper. The corn breaking and embryo fetching machine can save labor and materials when fetching the embryos of corn, can fetch the embryos of large and small corn grains, and has high embryo fetching rate; and the fetched embryos are smooth without adhesion things, and are very suitable for oil expression and eating.

The invention relates to an intelligent ultra-long stroke winch oil pumping unit which is composed of an electric control cabinet, a balance weight system, a base, a winch system and a pumping system.The electric control cabinet is connected with the balance weight system, the winch system and the pumping system through cables, the balance weight system is connected with the winch system througha steel wire rope, and the winch system is connected with the pumping system through a flexible polish rod. The winch system comprises a displacement sensor, a motor, an electromagnetic brake, a winchsupport, a speed reducer, an outer-square cylinder and a roller. Steel wire rope tension of the balance weight system and flexible polish rod tension of the pumping system are located at the two endsof the axis of the roller and are opposite in direction. The intelligent ultra-long stroke winch oil pumping unit is used for improving the stroke of the oil pumping unit, eliminating an included angle generated between the flexible polish rod and a head sheave, prolonging the service life of the flexible polish rod, realizing the balance weight of the ultra-long stroke oil pumping unit, and further saving energy, by adding an intelligent chip, the pump efficiency, the yield and the annulus liquid level position of an oil jacket can be instantly reflected, and the oil pumping speed is automatically adjusted or oil is intermittently pumped according to liquid supply data. Efficient operation is achieved.

The invention discloses an agricultural small rapeseed stir-frying device which comprises a guide wheel, a box body, a heater, a supporting column, a guide plate, a stir-frying tool, a vertical impeller, a rotating shaft, a timer, a feed port, a camera, an LED lamp and a discharge port. The guide wheel is arranged on the bottom face of the box body. The feed port is formed in the top end of the box body. A control valve is arranged on the feed port. The timer is arranged on the side wall of the box body. A transparent glass plate is arranged on the side wall of the box body. The camera is arranged on the inner wall of the top end of the box body. The LED lamp is arranged on the inner wall of the top end of the box body. The rotating shaft is arranged in the box body. The stir-frying tool is arranged at the bottom end of the rotating shaft. The vertical impeller is arranged at the outer portion of the lower end of the rotating shaft. The guide plate is arranged in the box body. The bottom end of the guide plate is hinged to the top end of the supporting column. The supporting column is fixed to the bottom end of the box body. A temperature sensor is arranged on the lower surface of the guide plate. The heater is arranged below the guide plate. The discharge port is formed in one side of the bottom end of the box body. By means of the agricultural small rapeseed stir-frying device, heating is easier, work efficiency is improved, the next step of oil squeezing is facilitated, the structure is simple, use is convenient, and popularization is facilitated.

The invention relates to a hollow oil pumping device for fluid producing profile tests in the field of oil field underground oil extraction tools. The hollow oil pumping device comprises a central pipe. A release connector is connected to the upper end of the central pipe in a threaded manner. A lower connector is connected to the lower end of the central pipe in a threaded manner. A hollow rod oil pump is connected to the lower end of the lower connector. An upper inner clamp sleeve and a lock ring are sequentially slidably sleeved on t he outer wall of the central pipe on the lower side of the release connector. A lock ring sleeve is sleeved outside the upper inner clamp sleeve and the lock ring. One-way lock teeth which are meshed are respectively disposed on the inner wall of the lock ring and the outer wall of the central pipe on the lower side of the lock ring. A thrust sleeve is connected to the outer wall of the lower end of the lock ring sleeve in a threaded manner. A packing rubber cylinder and anchoring slips are disposed on the periphery of the central pipe at the lower end of the thrust sleeve. A hydraulic cylinder is disposed on the periphery of the central pipe between the lower end of the release connector and the upper inner clamp sleeve, and a through hole communicated with the inner cavity of the hydraulic cylinder is formed in the wall of the central pipe. By the hollow oil pumping device, oil pumping can be achieved during fluid producing profile tests. In addition, the hollow design provides a passage for instruments and conveying tools to move up and down during the tests.

An apparatus for generating acoustic waves within a medium to stimulate oil recovery within an oil reservoir. The apparatus is operable with a single moving part—a central rotor, and the rotor further includes a “conduit” through which the supply fluid passes.

The invention provides an efficient steaming and frying device used before pre-squeezing of rapeseed oil. The efficient steaming and frying device comprises a base, wherein the base is of a cuboid shape, and is made of gray cast iron; a left side bracket is vertically welded and fixed on the upper surface of the left side of the base; the upper part of the left side bracket is transversely connected and fixed with a stirring and frying shaft through a supporting hinge connector; a transmission belt wheel is arranged at the right side of the left side bracket; the transmission belt wheel is connected and fixed at the left side of the stirring and frying shaft, and the lower part of the transmission belt wheel is connected into a transmission box through a transmission shaft; two brackets are arranged, and are welded and fixed on the upper surface of the base in a bilateral symmetry manner, and a steaming and frying box is welded at the upper ends of the brackets; a connecting part of the steaming and frying box and the stirring and frying shaft is provided with a fixed hinge connector; a plurality of spraying openings are formed in the lower surface of an air distribution plate, andan air inlet is connected into the upper side of the air distribution plate; the right side bracket is arranged at the right side of the steaming and frying box, and is welded and fixed on the uppersurface of the right side of the base. The efficient steaming and frying device has a relatively simple structure and is convenient to use and operate; steaming and frying requirements before the pre-squeezing of rapeseeds are met, and the practicability is relatively high.

The invention discloses rapeseed oil processing oil pressing equipment with a protection function. The rapeseed oil processing oil pressing equipment comprises an oil press, a feeding mechanism, a funnel, a top cover, a motor, a screw rod, a feeding mechanism, a connecting pipe, a leather plug, a lead screw, a discharging groove and a locking mechanism. The rapeseed oil processing oil pressing equipment has the beneficial effects that when rapeseed powder in the funnel is adhered together to form a hollow part in the funnel, the screw rod is rotated to drive the leather plug to move, so that the leather plug moves to pull a steel wire to slide on the side wall of a roller, the steel wire drives a compression plate to slide downwards on the side walls of the feeding funnel and the screw rod, and the compression plate moves downwards to lengthen a spring; and meanwhile, the compression plate downwards extrudes rapeseed powder to compress the rapeseed powder in the funnel, and the screw rod moves to drive a piston to move in a connecting pipe, so that the piston extrudes the rapeseed powder in the connecting pipe, the rapeseed powder in the connecting pipe is extruded into the funnelthrough a mounting pipe, the rapeseed powder in the funnel is filled, and the screw rod can conveniently push the rapeseed powder downwards.

The present invention provides an oil displacement experiment device and oil displacement experiment method. The oil displacement experiment device comprises a reaction tube, an injection system, a gas analysis mechanism and a control system; the reaction tube is used for containing reactants; the reaction tube is provided with an inlet end and an outlet end; the injection system comprises a plurality of gas sources; the plurality of gas sources respectively communicate with the inlet end of the reaction tube so as to inject different gases into the reaction tube through the inlet end; the gasanalysis mechanism communicates with the outlet end of the reaction tube so as to collect gas generated by reaction of the reactants in the reaction tube and analyze components of the gas; and the control system is connected with the injection system so as to control the plurality of gas sources to inject the gas into the reaction tubes respectively. The oil displacement experiment device solvesthe problem that an oil displacement experiment device in the prior art is single in function.

The application provides a gravel packing device and method for oil layer sand control, belonging to the technical field of oil well construction. In the technical solution provided by the embodiment of the present application, the filling unit and the backwashing unit are connected by shearing nails. After the shearing nails are disconnected, the separation of the filling unit and the backwashing unit is realized, so that the backwashing unit is left at the preset position in the well to play a role. The function of plugging the screen is to directly fill the mixture of gravel and sand-carrying fluid into the annulus of the screen sleeve and the oil layer through the channel at the bottom of the packing unit. Since the above-mentioned channel has a large diameter, it will not be worn by the gravel, so it is suitable for filling The mixture of high sand ratio, large sand volume and large displacement can wash the gravel stagnated on the top of the backwash unit to the wellhead after the above filling process is completed. Then, the backwash unit is fished out of the oil well, that is to say, after the filling is completed, the sand control gravel packing device for the oil layer can be completely lifted out of the oil well based on its own structural characteristics, which facilitates the subsequent oil recovery process.

The invention discloses a subsection well completion system of a bottom water reservoir horizontal well, in particular to a special well completion system for a horizontal well, belonging to the field of petroleum drilling well completion. The invention aims to provide a well completion system for reducing the pressure drop rate, stabling oil, controlling water, preventing sand, blocking water, improving the oil extraction rate and reducing the well completion expense. A release joint at the root end of the horizontal well is connected with a first section of novel flow-controlling sieve tube; a novel flow-controlling sieve tube section and a casing section are alternated; a packer is arranged between the novel flow-controlling sieve tube section and the casing section; a safe joint is arranged behind a first sieve tube of the novel flow-controlling sieve tube section; a plug is arranged at the tail end of a well completion tubular column; and spring centralizers keep away from the packer and are arranged on the whole well completion tubular column at equal interval. The key part is the novel flow-controlling sieve tube. The technical scheme has the essential points that subsection well completion is implemented on the bottom water-oil reservoir according to the oil reservoir characteristics and a borehole track. The invention has the characteristics of reducing pressure, stabilizing oil, controlling water, preventing sand, improving the recovery ratio and having high economic performance and is applicable for well completion of the bottom water reservoir horizontal well.

The invention relates to a small-diameter tubular pump pump-passing depth checking perforating and pumping combined production method. The method includes adopting a perforating and pumping combined pump and a small-diameter gamma depth checking gauge, tripping in a standing valve along with a perforating and pumping combined tubing string and a pumping-down tool to a design position, tripping in the small-diameter gamma depth checking gauge for pump-passing depth checking, adjusting the tubing string to enable a perforating gun to align to a perforating formation, tripping in a pumping rod plunger and a blanking plug, performing pump bumping and well completion, then performing annulus pressure perforating, and starting to pump and produce after perforating. By the technology, the purposes for accurate located perforating of oil sheets and pumping after perforating are achieved, oil layers are protected effectively, well control safety in construction is improved, and technical support is provided for well-killing-free production of high-pressure oil wells and high-gas-oil-ratio oil wells.

The invention relates to a fracturing device used in a tubular column. The fracturing device used in the tubular column comprises a tube body, a sliding sleeve and a driving mechanism, wherein the tube body is connected in the tubular column; a fracturing opening and a guiding component are arranged on the tube body; the sliding sleeve is embedded in the tube body; a trajectory groove used for accommodating the guiding component is arranged in the peripheral surface of the sliding sleeve; the driving mechanism is used for actuating the sliding sleeve. The trajectory groove is constructed, when the driving mechanism pushes the sliding sleeve to move towards an upstream direction or a downstream direction in the tube body, to be capable of actuating the sliding sleeve to rotate via the guiding component, and to enable the sliding sleeve to selectively open, partially open or close the fracturing opening. According to the fracturing device used in the tubular column, which is provided by the invention, not only can the own fracturing opening be effectively closed, but also an open extent of the fracturing opening can be adjusted; an oil extraction rate of each stratum section can be effectively controlled; the reasonable and efficient oil extraction is facilitated.

The invention discloses a mobile nuclear power steam making oil extraction system based on a small metal fast reactor. The system comprises a steam injection heat exchanger for oil extraction connected with an oil well, and further comprises a small fast reactor steam generator, a dead steam decompression device and intermediate heat exchangers, a steam outlet of the small g fast reactor steam generator is connected with a steam inlet of the dead steam decompression device, and a steam inlet of a steam side of the steam injection heat exchanger for oil extraction at the same time, a steam outlet of the dead steam decompression device is connected with steam inlets of the intermediate heat exchangers, steam outlets of the intermediate heat exchangers are connected with a steam inlet of thesteam injection heat exchanger for oil extraction, and a moving mechanism is further included. High-pressure saturated or superheated steam provided by the small metal fast reactor can be directly used for heating crude oil in an oil reservoir in the oil extraction process to meet the thickened oil heat extraction steam injection needs, a whole device is manufactured into a skid-mounted device, and a trailer manner is adopted for carrying out moving.

The invention relates to a hollow oil pumping device for fluid producing profile tests in the field of oil field underground oil extraction tools. The hollow oil pumping device comprises a central pipe. A release connector is connected to the upper end of the central pipe in a threaded manner. A lower connector is connected to the lower end of the central pipe in a threaded manner. A hollow rod oil pump is connected to the lower end of the lower connector. An upper inner clamp sleeve and a lock ring are sequentially slidably sleeved on t he outer wall of the central pipe on the lower side of the release connector. A lock ring sleeve is sleeved outside the upper inner clamp sleeve and the lock ring. One-way lock teeth which are meshed are respectively disposed on the inner wall of the lock ring and the outer wall of the central pipe on the lower side of the lock ring. A thrust sleeve is connected to the outer wall of the lower end of the lock ring sleeve in a threaded manner. A packing rubber cylinder and anchoring slips are disposed on the periphery of the central pipe at the lower end of the thrust sleeve. A hydraulic cylinder is disposed on the periphery of the central pipe between the lower end of the release connector and the upper inner clamp sleeve, and a through hole communicated with the inner cavity of the hydraulic cylinder is formed in the wall of the central pipe. By the hollow oil pumping device, oil pumping can be achieved during fluid producing profile tests. In addition, the hollow design provides a passage for instruments and conveying tools to move up and down during the tests.

The invention discloses squeezing device and a method for squeezing tea seed oil in the technical field of oil processing, and tea seeds are fried and pressed by the squeezing device. The squeezing device comprises a base, an oil cylinder, a rotating body and a driving part for driving a rotating body to rotate; the rotating body is located in the oil cylinder, wherein oil pressing cavities, feeding cavities and a frying cavity are formed in the rotating body, and the oil pressing cavities and the feeding cavities are located on the periphery of the frying cavity; and oil pressing screw rods which are rotationally connected with the rotating body are arranged in the oil pressing cavities, and the oil pressing screw rods extends into the feeding cavities from the oil pressing cavities. During frying and oil pressing of the tea seeds, the method comprises the following steps that 1, frying, the tea seeds is put into the frying cavity for frying; 2, oil pressing, the fried tea seeds is poured into the feeding cavities; 3, a driving part and a driving device are started to enable the rotating body and the oil pressing screw rods to operate so as to carry out oil pressing on the tea seeds. According to the scheme, the squeezing device is adopted, and the squeezing process is improved, so that the oil production rate of the tea seeds is remarkably improved.

An apparatus for generating acoustic waves within a medium to stimulate oil recovery within an oil reservoir, the apparatus being operable with a single moving part—a central rotor, and where the rotor further includes a “conduit” through which the supply fluid passes.

The invention discloses a corn deep processing machine, in particular a corn breaking and embryo fetching machine. The breaking and embryo fetching machine comprises a feed hopper, and is characterized in that: a mill shell is arranged under the feed hopper; a raw material hopper is arranged under the mill shell; a quick grinding roller and a slow grinding roller respectively arranged on a main engine shaft A and a main engine shaft B are arranged in the mill shell; the main engine shaft A is connected with power input; one end of the main engine shaft A is provided with a main engine wheel, while the other end is provided with a transmission device; the main engine wheel is connected with a belt pulley which is arranged at one end of an impact shaft; and the impact shaft is provided with an impact machine connected with the raw material hopper. The corn breaking and embryo fetching machine can save labor and materials when fetching the embryos of corn, can fetch the embryos of large and small corn grains, and has high embryo fetching rate; and the fetched embryos are smooth without adhesion things, and are very suitable for oil expression and eating.

The invention relates to single-phase, two-phase, three-phase and multi-phase symmetrical-peak dual-voltage rectifying basic circuits and particularly relates to application on a thickened oil heating system of an oil well. On the basis of single-phase, two-phase and three-phase rectifying output circuits, a capacitor is connected by a new method, peak symmetry and dual-voltage rectification are achieved, positive electric potential and negative electric potential are switched on through switching elements, no isolation transformer is required to be added, a sucker rod is heated, the heat production efficiency is improved, resources and energy are saved, and circuits can be used commonly in a single phase and multiple phases.

The invention provides a wellbore control device and a wellbore control method, in order to achieve the purpose, according to one aspect of the invention, the wellbore control device is provided and used for controlling the pressure of oil in a wellbore horizontal section, and the wellbore control device comprises a bridge plug arranged in the wellbore horizontal section; the switch assembly is connected with the bridge plug, a switch valve and a liquid passing channel are arranged in the switch assembly, and the switch valve is movably arranged at one end of the liquid passing channel; and the switch valve is provided with a separation position and a break-through position, so that when the switch valve moves to the break-through position, the liquid passing channel is communicated with the shaft, and when the switch valve moves to the separation position, the liquid passing channel is disconnected from the shaft. The shaft control device solves the problem that oil extraction is inconvenient due to high wellhead pressure of a horizontal well in the prior art.

The invention discloses a well completion method for a tail pipe combining an expansion sleeve pipe and an expansion sieve pipe. The expansion sleeve pipe and the expansion sieve pipe are combined on a pipe column of the tail pipe and expanded by sequentially adopting an expansion awl and a variable-diameter expansion tool. The implementation method includes: enabling the pipe column of the tail pipe combining the expansion sleeve pipe and the expansion sieve pipe to be down to a predetermined position in a well, under the hydraulic action, adopting the expansion awl to enable the expansion sleeve pipe to realize expansion, enabling the expansion sleeve pipe to be closely attached to an intermediate sleeve pipe and in a well bore through a rubber ring, and providing a hanging seal for a well completion pipe column; and adopting the variable-diameter expansion tool to expand the expansion sieve pipe to enable the same to be closely attached to the well bore to eliminate annular space between the sieve pipe and a well wall. The well completion method for the tail pipe combining the expansion sleeve pipe and the expansion sieve pipe has the advantages that the inner diameter of a tieback sleeve pipe can be increased after the expansion sleeve pipe is expanded, so that oil extraction and operation at later stages are facilitated; and the outer wall of the expansion sieve pipe can attach the well bore after the expansion sieve pipe is expanded, sand filtering effect is improved, sand preventing effect of the sieve pipe is improved, and development effects such as capacity and recovery ratio are improved.

The invention discloses a drying machine for peanut oil raw materials. The drying machine comprises a main body cavity, a rotating drum, a rotating rod, supporting rods, a first strut, a second strut,a first motor, a resistance wire, a fan, a feeding nozzle and a discharging nozzle; the vertical section of the main body cavity is in a door arch shape; the main body cavity comprises a first end wall, a second end wall and side walls; the first end wall is provided with a feed inlet; the second end wall is provided with a discharge port; the rotating drum is arranged in the main body cavity; the rear part of the rotating drum is close to the second end wall; the inner wall of the rotating drum is also provided with spiral ribbed plates; the rotating rod penetrates through the rotating drum;the rotating rod is collinear with the central axis of the rotating drum; the number of the supporting rods is multiple; one end of each supporting rod is fixedly connected with the rotating rod; andthe other end of each supporting rod is fixedly connected with the inner wall of the rotating drum. The dryer can discharge chippings generated in the drying process from leakage holes, peanuts are kept clean after being dried, and the drying efficiency is improved.

The invention provides a heavy oil reservoir mining method. The heavy oil reservoir mining method is characterized by comprising the following steps that a steam producing well is arranged in a casing prestressed completion mode, wherein a steam pipe is located in a flow string; steam is fed into the steam pipe, wherein the dryness of the steam arriving at the well bottom is more than 60 percent; the flow string is used for pumping oil. According to a steam oil producing well, the steam pipe and the flow string are combined, the outlet of the steam pipe is close to the oil producing port, effective heat communication can be formed very easily, the needed time is short, and cost is reduced. A steam well and the oil producing well do not need to be dug respectively, the number of the wells is reduced, and cost is saved. The dryness of the steam in the well mouth is more than 75 percent, the temperature of the steam in the well mouth ranges from 300 DEG C to 400 DEG C, the dryness of the steam at the well bottom is more than 60 percent, the steam can dilute oil very well, and oil can be collected conveniently. A cavity wall vacuum pipeline with a good heat preservation effect is adopted as the steam pipe, the quality of the output steam is guaranteed, and oil can be produced well.