57results about How to "Prevent sediment clogging" patented technology

The invention discloses a seafloor hydrothermal vent temperature difference energy power generating device. The seafloor hydrothermal vent temperature difference energy power generating device comprises a flow guide tube and a cavity; a top end cover and a flange end cover are fixed to two ends of the cavity respectively; the flow guide tube, the top end cover, the flange end cover and the cavity form a sealed cavity; a first temperature difference power generating sheet, a separation board and a second temperature difference power generating sheet are arranged in the sealed cavity; the hot ends of the first temperature difference power generating sheet and the second temperature difference power generating sheet are attached to the outer wall of the flow guide tube; the cold ends of the first temperature difference power generating sheet and the second temperature difference power generating sheet are attached to the inner wall of the cavity; the exterior of the cavity is provided with a plurality of ring ribs; and the lower end of the flow guide tube is provided with a flow guide tube flange and a trumpet-shaped flow separation hood. According to the seafloor hydrothermal vent temperature difference energy power generating device of the invention, a thermoelectric Seebeck effect is utilized, and the flow guide tube is adopted to guide hydrothermal fluid, and the temperature difference power generating sheets are adopted to convert heat energy into electric energy, and therefore, power generation can be realized. The seafloor hydrothermal vent temperature difference energy power generating device of the invention is simple and compact in structure; and the temperature difference of the two ends of each temperature difference power generating sheet is large, and therefore, the utilization rate of hydrothermal energy is high.

The invention discloses a method and a device for removing coal dust and oil by enabling coal to be directly liquefied and generate sulphur-bearing waste water in the technical field of coal conversion. The method and the device can avoid deposition blocking of the coal dust in a stripping tower, reduce loads of a steam stripping device and improve steam stripping effect, the running cycle of the device is prolonged, simultaneously recycling of dirty oil is facilitated, the processing loss of the device is reduced, and the economic benefit of the device is improved. Besides, a micro cyclone separator and a cyclone deoiler which are adopted in the device are high in separating efficiency, long in continuous running cycle, small in occupied area, high in impact resistance and simple to operate and maintain. The method and the device are characterized in that the device for removing the coal dust and the oil by enabling the coal to be directly liquefied and generate the sulphur-bearing waste water comprises an adjusting tank, a sewage pump, the micro cyclone separator, a precision filter, the cyclone deoiler and the stripping tower; and sewage finally enters into the stripping tower to be treated after the sewage is treated by the adjusting tank, the sewage pump, the micro cyclone separator, the precision filter and the cyclone deoiler.

The invention relates to a method and a device for degreasing a horizontal air flotation coupling corrugated plate. The method is that the oily wastewater containing a small amount of solid particles passes through the branch-type horizontal air bubble generator installed in front of the corrugated plate, and the air bubbles of 10-30m are evenly brought into the interval between the inclined corrugated plates, and the oil droplets are rapidly discharged under the action of the air bubbles. Float up to the upper part of the two-layer corrugated plate, move to the crest of the corrugated plate, and quickly coalesce into large oil droplets to float and separate through the shallow pool settlement of the corrugated plate to realize the rapid separation of oil and water. The present invention also provides a set of devices for realizing the method, including a housing, a feed pipe, a branch-type horizontal bubble generator, a symmetrical perforated corrugated coalescing plate, a water outlet, an oil outlet, an oil separator, an air Several parts such as the bag and the boundary meter. The method of the present invention has fast separation speed and high efficiency, and prevents the deposition and clogging of solid particles through the inclined setting of the corrugated plate, and can be widely used in the rapid treatment process of oily wastewater containing trace solid particles.

According to the system, the outlet end of a liquid nitrogen conveying pipe in a liquid nitrogen circulation fatigue fracturing permeability increasing unit penetrates through a hole sealing plug I and then extends to the bottom, and the inlet end of a gas extraction pipe I penetrates through the hole sealing plug I and then stops at the top; a high-pressure jet device in the hydraulic fluidization mining and gas extraction unit is mounted at a hole sealing plug II, the high-pressure jet device is connected with the liquid outlet end of a high-pressure water conveying pipe, and the inlet end of a gas extraction pipe II penetrates through the hole sealing plug II and then stops at the top; the hydraulic fluidization transportation unit comprises a coal body fluidization transportation roadway and a coal body fluidization transportation pipe; the goaf paste filling unit comprises a paste pumping machine and a filling pipe. The method comprises the steps of roadway construction; coal seam drilling construction; liquid nitrogen cycle fatigue cracking permeability increasing and gas extraction are conducted; carrying out hydraulic fluidization mining and gas extraction; carrying out hydraulic fluidization transportation; and filling the goaf with paste. According to the system and the method, the fluidization co-mining operation of the coal and the gas in the low-permeability inclined coal seam can be efficiently realized.

The invention discloses a particle drilling method, and belongs to the technical field of oil gas drilling engineering. The particle drilling method comprises steps of particle injection and particle recovery. The particle drilling method is characterized in that a. a slurry and particles are injected in a well through an injection device in the step of particle injection; b. a mixture of particles, rock debris and the slurry returned from the well is drained into a magnet separator after passing pipes from a rotary control head on a derrick floor in the step of particle recovery, and the magnet separator sends separated particles into a storage tank, and sends separated rock debris and slurry into a slurry tank; and c. particles in the storage tank are injected into the well again to drill through the injection device, to form a drilling cycle. According to the particle drilling method, the mixture of particles, rock debris and the slurry returned from the well is directly drained into a magnet separator through an exit device at the well head, particles can be separated and stored, a problem in the prior art that a slurry may leak from a plurality of positions because rock debris and the slurry are directly pumped into a drilling crew vibrating screen can be solved, and the risk of environmental pollution can be greatly reduced.

The invention discloses a double-injection pump continuous injection device applicable to particle well drilling, and belongs to the technical field of oil-gas drilling engineering. The double-injection pump continuous injection device comprises a particle mixing hopper. A reversing pipe is arranged inside the particle mixing hopper. A swing hydraulic cylinder is connected to the reversing pipe. A first conveying cylinder and a second conveying cylinder are connected to the particle mixing hopper. A first piston is arranged inside the first conveying cylinder. A second piston is arranged inside the second conveying cylinder. The first piston is connected to the first hydraulic cylinder through a first piston rod. The second piston is connected to the second hydraulic cylinder through a second piston rod. One end of the reversing pipe is communicated with a high-pressure pipeline, and the other end of the reversing pipe is communicated with the first conveying cylinder or the second conveying cylinder. A slurry pump is communicated with the particle mixing hopper through a first pipeline. A screw conveyor is communicated with the particle hopper through a second pipeline. According to the double-injection pump continuous injection device, injection continuity of particles into a well can be ensured, the working efficiency of particle impact drilling is effectively improved, the high-pressure area coverage range is small, and safety risk is lowered.

The invention discloses an efficient kiwi fruit wine fermentation device capable of realizing total aroma recovery. A fermentation barrel and a tail gas purifier are connected through a flange; a stirring motor is connected with a conical cover through a hollow shaft and then inserted into the fermentation barrel, blades and liquid inlets are arranged in the conical cover, air inlets are evenly and circumferentially distributed and formed in the upper part of the hollow shaft, a liquid moving plate is arranged in the fermentation barrel and placed on a bottom valve after being connected with a hollow pipe shaft, and the conical bottom of the fermentation barrel is connected with a compressed air pipe; a jacket is arranged outside the tail gas purifier, a middle pipe and a spiral fin cylinder are arranged inside the tail gas purifier to form a jacket structure, and a cyclone is arranged at an outlet of the tail gas purifier. Supplement of air (oxygen) in the fermentation barrel is automatic and convenient, the liquid flow mixing action is complete and full, and the fermentation efficiency is very high; the device can prevent material deposition and blockage conveniently, reliably and efficiently; the tail gas purifier is multi-stage, efficient and very good in heat transfer, mass transfer and gas-liquid separation effect, aroma leakage is effectively prevented, and automatic and efficient fermentation of total aroma type kiwi fruit wine is realized.

The invention relates to an efficient snakelike heat exchange device utilizing the Dean Vortice effect. The efficient snakelike heat exchange device utilizing the Dean Vortice effect comprises a shell, a cooling medium inlet, a cooling medium outlet, a process medium inlet, a process medium outlet, a support and the like. When fluid medium flows in a snakelike heat exchange pipe, the Dean Vorticewith symmetrical vertex core distribution can be formed, and a remarkable acceleration function is achieved on fluid heat exchange. According to the efficient snakelike heat exchange device utilizingthe Dean Vortice effect, by analyzing and evaluating the intensity of the Dean Vortice and the heat exchange efficiency, the Dean Vortice intensity index corresponding to the optimum heat exchange efficiency is selected, optimal design is conducted on the structural parameter of the snakelike heat exchange pipe and the dimension parameter of the shell of the efficient snakelike heat exchange device, so that the fluid medium can reach the full turbulence state in the tube pass flowing process under the conditions of a small resistance force and linear loss, the thicknesses of a flow boundary layer and a temperature boundary layer close to the tube wall can be effectively lowered, the initiative convection heat exchange process is enhanced in the medium flow process, and the overall heat exchange efficiency of the efficient snakelike heat exchange device utilizing the Dean Vortice effect is improved. The efficient snakelike heat exchange device utilizing the Dean Vortice effect can be widely applied to the fields of oil refining, chemical industry, light industry, sewage treatment and the like and is wide in application range, high in heat exchange efficiency, excellent in performance and high in practicability,

The invention discloses a micro-power gas-stripping mud and water constant-flow device. A gas-stripping mud and water system comprises a gas inlet, a gas-stripping mud and water absorbing pipe and a mud and water outlet flushing head; a mud and water volume regulating system comprises a mud and water energy balance regulating tank, a constant flow water outlet area, a pulsating flow water outlet area, a constant flow water outlet pipe and a pulsating flow outlet pipe; the mud and water energy balance regulating tank and the constant flow water outlet area are connected through a separating plate which is provided with flow holes. The micro-power gas-stripping mud and water constant-flow device has the advantage of being controllable in regulation of gas-stripping mud and water constant flow, stable in outflow, less prone in splashing of output mud and water, capable of effectively avoiding blocking led by settled mud, smooth in gas-stripping mud and water pipes, and low in gas and energy consumption, thereby being applicable to industrial promotion and application and filling the gap in the fields of constant-flow gas stripping and accurate gas-stripping outflow control.

A circulating well body of the underground water circulating well system is integrally formed by a plurality of screen pipe sections and solid pipe sections which are separated from one another in the axial direction, variable-direction hydrodynamic cavitation assemblies capable of forming wake flow cavitation bubbles are further arranged in the different screen pipe sections, and the variable-direction hydrodynamic cavitation assemblies are arranged at the corresponding screen pipe positions in the circumferential direction. And a liquid flow containing cavitation bubbles for removing dirt of the respective screen pipe is formed at the water inlet front end of the corresponding screen pipe by means of flowing of underground water to be purified. Blockages around the sieve tube of the circulating well are broken through the hydrodynamic cavitation effect, and blockage of a well body of the circulating well is relieved; the cavitation erosion speed of the screen pipe is reduced / increased by changing the direction of the cavitation pipe, and the service life of the circulating well is prolonged.

The invention relates to the technical field of salt production, in particular to a process for producing refined salt by using salt production waste liquid. The process comprises the following steps of: (1) filtering and preheating: filtering the salt production waste liquid by using a semipermeable membrane, and preheating the waste liquid in a preheater to obtain primary waste liquid; (2) evaporation and thickening: heating and evaporating the primary waste liquid to generate secondary waste liquid with the concentration of 32-35 degrees Be'; (3) cooling and devitrifying: cooling the secondary waste liquid, and filtering to remove the secondary waste liquid to obtain crystallized salt slurry; (4) washing and devitrification: enabling crystallized salt slurry to enter a salt leaching device for saturated brine washing, enabling the washed crystallized salt slurry to enter a salt storage bin and then enter a centrifugal machine through a cyclone to dewater the washed crystallized salt slurry so as to obtain wet salt, and enabling brine mother liquor removed by the centrifugal machine to flow back to the salt leaching device; and (5) drying. By optimizing the process, the phenomena of blockage and refined salt caking in the salt manufacturing process are avoided, and the continuity and stability of salt manufacturing production are ensured.

A high-temperature aerosol particle sampling device belongs to the technical field of coal combustion and environmental pollution emission and comprises two parts of a sampling head and a gun body, wherein the sampling head consists of a sampling nozzle, a diluent gas heating pipe and a mixing channel, and the gun body comprises a water cooled shell assembly and a two-stage diluent mixing tube. Aiming at the complicated conditions of a high temperature combustion environment, the device inhibits the condensation and nucleation of gaseous inorganic substances in high temperature smoke gas during sampling process through two-stage diluent sampling, and meanwhile, holds back the collision and conglobation process of particles during sampling process, thus obtaining the real distribution of particulate matter in the high temperature smoke gas. The sampling device is applicable to sampling of aerosol particulate matter under high temperature environment (such as various combustion apparatuses).

The invention provides an underflow distributing device used in serum swirl station, comprising a feed pipe (1), a serum distributing box (2), discharge ports (3) and a switching mechanism (4) provided with a push rod and a pair of parallel tracks, wherein the switching mechanism (4) is positioned above the serum distributing box (2); the parallel tracks are also arranged above the serum distributing box (2); both ends of the push rod are arranged on the tracks; the feed pipe (1) is fixed on the push rod, while the push rod is connected with a drive mechanism; the inlet part of the feed pipe (1) is connected with the underflow pipe positioned at the serum outlet of a swirl station, while the outlet part is communicated with the serum distributing box (2); the bottom of the serum distributing box (2) is provided with two discharge ports (3), while the outlet part of the feed pipe (1) is opposite to the discharge ports (3); in addition, the line of centers of both discharge ports (3) isparallel to the parallel tracks. The invention can guarantee smooth switching of serum without blockage and overflow.

The invention relates to a fast bed reaction method for ultrafine particles and a fast reaction bed, comprising a cyclone separator, the bottom outlet of the cyclone separator is separated from the cyclone through a downcomer, a delivery pipe, a riser pipe and a connecting pipe The top inlet of the downcomer is connected; the material is put into the delivery pipe through the downcomer from the feed inlet of the upper part of the downcomer, and then enters the riser after being heated in the delivery pipe, together with the reaction gas introduced from the air inlet of the lower part of the uptake Rising, continuous mixing, and reaction, the gas-solid mixture goes out of the riser and is sent to the cyclone separator through the connecting pipe. After the gas-solid separation of the cyclone separator, the solid powder enters the conveying pipe again to carry out the above cycle process for many times. After the reaction The material is discharged from the discharge port at the end of the conveying pipe. The invention has simple structure, easy control, simple method, separation of heating and reaction process, good fluidization stability, effective reduction of superfine particle agglomeration and clogging, good reaction uniformity, high efficiency and continuous production.

The invention relates to a reverse cone sieve disk ammonia leakage-free efficient chemical combination leaching device of a copper ore. A chemical combination leaching barrel and a tail gas purifier are connected by a flange; a stirring motor is connected with a conical shield by a hollow shaft and then inserted into the chemical combination leaching barrel; blades and liquid inlets holes are formed in the cone shield; air inlet holes are peripherally uniformly distributed and formed in the upper part of the hollow shaft; liquid inlets are formed in the chemical combination leaching barrel, and a reflux pipe penetrating out of the barrel body on a bottom valve; the tail gas purifier is externally provided with a jacket and is internally provided with a middle pipe forming a jacket structure together with spiral fins; the outlet of the tail gas purifier is provided with a swirler. Air (oxygen) is automatically conveniently replenished in the chemical combination leaching barrel having a perfect and complete liquid flow mixing action, and chemical combination leaching efficiency is high; material deposition and blockage is prevented, and convenience and efficiency are realized; tail gas purifier is multi-level, capable of efficiently finishing heat and medium transfer, and very good in gas liquid separation effect, ammonia leakage is effectively avoided, environment friendliness, automation and efficiency of chemical combination leaching of the copper ore is realized and important application value is realized.

The invention provides a sorting and grading device of a pulsating liquid-solid fluidized bed and a method thereof. The sorting and grading device comprises a light product overflow trough, a central feed pipe, a sorting tank, a pulsating liquid distributor, a pulsating current generator, a heavy product collecting base-cone section, a sensor for measuring the concentration of the heavy product layer, a programmable controller, a heavy product discharging fluidized chamber and an underflow discharging automatic control actuator. The method comprises the following steps: firstly, water is thrown into a sorting machine in a pulsating way by the pulsating current generator, to form an upward varying-accelerated pulsating-type ascending current; accordingly, low-density or fine-fraction materials can be subjected to upward accelerated movement under the action of the accelerated pulsating-type ascending current, thus achieving the overflow discharge of the low-density or fine-fraction materials as the light or fine-fraction products; and high-density or coarse-fraction materials can be settled downwards in the fluidized bed, thus achieving the discharge of the high-density or coarse-fraction materials as the heavy or coarse-fraction products. Accordingly, the process for sorting materials by density on the basis of pulsating fluidization or the process for grading materials by fraction on the basis of pulsating fluidization can be achieved. The device and method of the invention have the advantages of simple operation, low energy consumption, low sorting lower limit, wide fraction range, high sorting accuracy and high reliability.

The invention discloses a total-ammonia recovery type copper mine efficient chemical combination leaching device. A chemical combination leaching barrel and a tail gas purifier are connected through a flange. After being connected with a conical cover through a hollow shaft, a stir motor is inserted in the chemical combination leaching barrel. The conical cover is internally provided with blades and liquid inlet holes. Air inlets evenly distributed and formed in the shaft circumference are formed in the upper portion of the hollow shaft. A hydraulic drive disc is arranged in the chemical combination leaching barrel and connected with a hollow pipe shaft, and the hollow pipe shaft is arranged on a bottom valve. A jacket is arranged outside the tail gas purifier, and the tail gas purifier is internally provided with an intermediate pipe to form a jacket structure with a spiral finned barrel. A cyclone is arranged at an outlet of the tail gas purifier. Supplement of air (oxygen) in the chemical combination leaching barrel is automatic and convenient, the liquid flow mixing function is improved sufficiently, and the chemical combination leaching efficiency is very high. Material deposition blockage can be conveniently, reliably and efficiently prevented. Heat transfer and medium transfer are efficiently finished through the tail gas purifier in a multi-stage manner, and the gas-liquid separation effect is particularly good. Ammonia leakage is effectively prevented, environment-friendly, automatic and efficient copper mine chemical combination leaching is achieved, and high application value is achieved.