39results about How to "Enhanced turbulence" patented technology

The invention provides a deflecting fence type square heat exchanger with a waved tube. The heat exchanger comprises a case, a heat exchange tube, an upper tube plate and a lower tube plate, wherein the case, the upper tube plate and the lower tube plate form airtight space, an airtight upper head is arranged on the left side of the upper tube plate, an airtight lower head is arranged on the right side of the lower tube plate, a tube-side inlet is arranged on the upper head, a tube-side outlet is arranged on the lower head, the heat exchange tube is installed in the airtight space, two ends of the heat exchange tube are installed in the upper tube plate and the lower tube plate respectively and communicated with the upper head and the lower head respectively, a tube-side outlet tube is arranged on the right of the upper tube plate on the case, a tube-side inlet tube is arranged on the left of the lower tube plate, and a deflecting fence for supporting the heat exchange tube is mounted in the case and comprises a deflecting ring and a support rod installed in the deflecting ring. According to the heat exchanger, vortex flow and the Venturi effect can occur when shell pass fluid flows through the square deflecting fence, so that the shell pass fluid can obtain good turbulent current conditions, dead flow zones and leakage current losses when the fluid flows across tube bundles are reduced, and heat exchange on the shell side is strengthened.

The invention relates to an anaerobic reactor. The anaerobic reactor comprises a cylinder body, a water inlet pipe, a water outlet pipe, a filling device on the middle part of the water outlet pipe, a water distribution device at the bottom of the filling device and a sludge discharge device at the bottom of the water distribution device; the water distribution device comprises a water distribution main pipe and more than four closed annular water distribution branch pipes; water outlet holes of the water distribution branch pipes are alternately arranged along more than three concentric circumferences; the cylinder body is positioned on the upper part of the filling device; the lower part of each water distribution branch pipe is provided with more than two water outlets; the water outlets are connected with the water outlet pipe; a reflowing pipe of the water outlet pipe is mixed with the water inlet pipe by a circulating pump and is communicated with the water distribution main pipe; a first medicating device and a second medicating device are communicated with the water inlet pipe respectively through connecting pipes; the filling device comprises a filling rack, a membrane hanging rack and a zonal biomembrane strip; the biomembrane strip is hung on the membrane hanging rack; and the sludge discharge device comprises a sludge discharge main pipe and six sludge discharge branch pipes arranged in length alternation along radial direction. The anaerobic reactor has the characteristics of reasonable water distribution, compact structure and stable operation of the reactor.

The invention discloses an ultrafiltration membrane reclaimed water treatment device integrating catalytic oxidation and a supported catalyst and belongs to the field of water pollution treatment equipment. The reclaimed water treatment device comprises a closed tank and an ultrafiltration membrane assembly arranged in the tank. An ultrafiltration membrane of the supported catalyst in the ultrafiltration membrane assembly is spaced with an ultraviolet lamp. An aerator and an ozone releaser are distributed below the ultrafiltration membrane, water flow can be pushed to move from bottom to top, the dual functions of water flow and bubbles rich in ozone can promote the jitter state of the hollow fiber ultrafiltration membrane, the catalyst supported on the ultrafiltration membrane can be evenly irradiated easily through ultraviolet, the mass transfer function among the ultrafiltration membrane of the supported catalyst, ozone and pollutants can be enhanced, and the effect of catalytic oxidation is improved. The water treatment device integrates the functions of suspended matter and colloid interception, organic pollutant decomposition, sterilization and the like, and a reliable guarantee is provided for resource regenerative utilization of sewage or preprocessing of nanofiltration and reverse osmosis.

The invention discloses a sewage disposal apparatus utilizing a multiple-needle plate type plasma capable of discharging in both air and water. The sewage disposal apparatus comprises a reactor casing, a multiple-needle plate type electrode capable of discharging in both air and liquid and a high-voltage discharge power supply. The inside of the reactor casing is divided into a discharge reaction zone and an air chamber under the discharge reaction zone; a cooling water groove used for cooling the discharge reaction zone is arranged on the periphery of the discharge reaction zone. The multiple-needle plate type electrode capable of discharging in both air and water comprises a plate type electrode and multiple hollow-needle shaped electrodes; the plate type electrode is connected to the positive pole of the high-voltage discharge power supply and the multiple hollow-needle shaped electrodes are connected to the negative pole of the high-voltage discharge power supply; the plate type electrode is arranged in the discharge reaction zone; the multiple hollow-needle shaped electrodes penetrate corresponding air micropipes fixedly arranged between the discharge reaction region and the air chamber to be arranged by corresponding to the plate type electrode. The whole sewage disposal apparatus has the advantages of high practicability, high energy utilization rate, good disposal effect, and wide application prospect in the field of sewage disposal.

The invention discloses an ultrafiltration membrane assembly integrating catalytic oxidation and carrying a catalyst, and belongs to the field of water pollution treatment equipment. The ultrafiltration membrane assembly comprises a shell composed of an upper sealing cover, a barrel and a lower sealing cover. A hollow fiber ultrafiltration membrane carrying the catalyst and an ultraviolet lamp are fixedly installed in the barrel through an upper tube plate and a lower tube plate. An ultrafiltration water inlet tube, an air inlet scrubbing tube and an ozone adding tube are arranged on the lower sealing cover. Water flow can be pushed to move from bottom to top, the hollow fiber ultrafiltration membrane is made in a shaking state, the catalyst carried on the ultrafiltration membrane is evenly irradiated by ultraviolet light easily, the mass transfer effect between the ultrafiltration membrane carrying the catalyst and ozone and pollutants is enhanced, and therefore the catalytic oxidation effect is enhanced. The ultrafiltration membrane assembly integrates the functions of intercepting suspended solids and colloid, degrading organic pollutants, killing bacteria and the like and provides reliable guarantees for recycling of sewage or nanofiltration and reverse osmosis pretreatment of sewage.

The invention discloses an universal cold plate for an airborne punch-through liquid cooling module. According to the universal cold plate, the heat dissipation requirement of the module can be met, the component arrangement and flow resistance matching of themodule are facilitated. According to the technical schemes of the invention, an arch-shaped flow channel is formed by U-shaped opening flow channels around a liquid cooling channel; heat exchange pipes which are fixed in the middle of a micro-channel cold plate and are arranged in parallel are surrounded in the micro-channel cold plate; and an LRM liquid cooling adapter connector connected with an external liquid cooling source penetrates through fluid through a flow channel of the micro-channel cold plate to form a secondary heat exchange liquid cooling channel taking away heat; and the heat exchange pipe parallel to a cooling liquid flow direction exchanges heat with a cooling liquid flow channel connected with the heat exchange pipe, liquid pressure vapor flow around the heat insulation exchange pipe wall of the evaporation heating end of the heat exchange pipe is instantly vaporized,the vapor flow flows towards a condensation end under traction of pressure, a large amount of heat is released, heat of a high-heat area in the middle of the LRM module is quickly diffused to a low-heat liquid cooling flow channel region, so that the heat of the component of the LRM module is taken away and dissipated.

The invention relates to the technical field of stirring devices and particularly to a hydraulic stirring device. The stirring device comprises a supporting column and a cylinder arranged on the supporting column. The upper end of the cylinder is provided with a feeder, and the lower end of the cylinder is provided with a discharging pipe; a stirring spray head I is arranged on the inner wall at the upper part of the cylinder, and a nozzle of the stirring spray head I is arranged to be tilted downwardly at an angle of 6 to 10 degrees; a stirring spray head II is arranged on the inner wall at the lower part of the cylinder, and a nozzle of the stirring spray head II is arranged to be tilted upwardly at an angle of 6 to 10 degrees; the stirring spray head I and the stirring spray head II are arranged at opposite directions; and an inert stirring wheel is provided at a central position at the lower part in the cylinder. According to the invention, the device does not need to be driven by an electrical machine or a motor, and the technical problems of a high fault rate, troublesome operation, poor stirring effects and the like in the prior art are effectively overcome.

The application provides a tube for a microalgae photobioreactor. A projection is arranged on the inner wall surface of the tube, and the projection axially and spirally rotates and extends along the tube. Under the same condition, algae fluid can be automatically stirred into a turbulent state in the flowing process, and sedimentation and algae stacking are avoided. Lower flow rate is allowed in the tube through the structure, the energy consumption of system circulating delivery is reduced, the stay time of the algae fluid in the tube can be prolonged through the low flow rate, the time for the contact between the tube and light is prolonged, and the growth efficiency is improved.

The invention discloses a little oil burner of a double-sided ignition combination blunt body. A primary air pipeline is communicated with a secondary coal dust combustion chamber through a section of coal dust concentrator formed by a tapered pipeline with a throat part formed through invagination, a primary coal dust combustion chamber is arranged in the secondary coal dust combustion chamber, and the secondary coal dust combustion chamber extends into a tertiary coal dust combustion chamber. The upper side surface and the lower side surface of the tertiary coal dust combustion chamber connected with the secondary coal dust combustion chamber are provided with a plurality of secondary air inlets in equal intervals, an upper oil combustion chamber and a lower oil combustion chamber are arranged on the primary coal dust combustion chamber after aslant penetrating through the secondary coal dust combustion chamber, a combination blunt body is arranged at the port of the secondary coal dust combustion chamber, and a plurality of through-flow holes are arranged on the upper surface and the lower surface of the second coal dust combustion chamber positioned in the tertiary coal dust combustion chamber. By adopting the top and bottom arrangement of two oil guns, coal dust entering into the primary coal dust combustion chamber are ignited in a double side way, which strengthens turbulent mass and heat exchange of coal dust current and oil flame to rapidly heat the coal dust and form a fire curtain, thereby prolonging the residence time of the coal dust and strengthening the ignition process.

The invention discloses a condenser assembly for a refrigerator, a refrigerator refrigeration system and the refrigerator, and belongs to the technical field of refrigerators. The condenser assembly for the refrigerator comprises a water receiving disc and a parallel flow condenser arranged on the water receiving disc. The parallel flow condenser comprises a first collecting main, a second collecting main and a plurality of flat tubes arranged between the first collecting main and the second collecting main in parallel. A partition plate is arranged in at least the first collecting main, a plurality of micro-channels are formed in each flat tube, and fins are arranged between the flat tubes. The condenser assembly for the refrigerator is high in heat exchange efficiency, the filling amount of refrigerants is small, occupied space is small, and the structure is more compact. Due to the fact that the refrigerator refrigeration system and the refrigerator comprise the condenser assembly for the refrigerator, the refrigerator refrigeration system and the refrigerator are smaller in size, more compact in structure and more convenient to mount.

The invention discloses a staged flow constraining debris flow drainage slot and an application thereof. The staged flow constraining debris flow drainage slot comprises a plurality of sections of flow constraining structural bodies connected end to end; the cross sections of passage at the inlet of the debris flow of the sections of flow constraining structural bodies are totally same, and the cross sections of passage at the outlet of the debris flow of the sections of flow constraining structural bodies are totally same; each of the flow constraining structural bodies comprises a slot bottom and side walls on two sides of the slot bottom, the slot bottom is gradually lifted along the flow direction of the debris flow and the side walls on two sides are gradually narrowed toward the center line of the drainage slot along the flow direction of the debris flow. By means of a design of gradually contracting the cross sections of passage of the flow constraining structural bodies and suddenly expanding two sections of flow constraining structural bodies, the staged flow constraining debris flow drainage slot can enhance turbulent fluctuation of the debris flow effectively, increase the energy dissipated ratio of the debris flow and reduce the speed of the debris flow so as to alleviate the abrading and scouring degrees of the drainage slot, so that the drainage safety of the debris flow in the downstream region is protected effectively. The staged flow constraining debris flow drainage slot is particularly suitable for high gradient channels in alpine regions and debris flowbodies containing large particle boulders.

The invention relates to a heat exchanger of a tobacco flue-curing house, which comprises a furnace hot flue gas inlet, a heat exchange tube and an exhaust chimney, wherein the furnace hot flue gas inlet and the exhaust chimney are respectively connected with two ends of the heat exchange tube to form a hot flue gas inlet and outlet passage; the two ends of the heat exchange tube are respectively connected with a front gas collecting box and a back gas collecting box to form a flue gas inlet and outlet passage; the furnace hot flue gas inlet is communicated with the lower part of the front gas collecting box; a soot door is arranged on the front gas collecting box; and the exhaust chimney is arranged at the tail of the flue gas passage. The invention has large heat exchange area and high heat exchange efficiency; the flow resistance of flue gas in the heat exchanger of the tobacco flue-curing house is small, and the airflow rate is large; and the soot deposited in the heat exchanger of the tobacco flue-curing house can be cleared conveniently.

The invention relates to an anaerobic reactor. The anaerobic reactor comprises a cylinder body, a water inlet pipe, a water outlet pipe, a filling device on the middle part of the water outlet pipe, a water distribution device at the bottom of the filling device and a sludge discharge device at the bottom of the water distribution device; the water distribution device comprises a water distribution main pipe and more than four closed annular water distribution branch pipes; water outlet holes of the water distribution branch pipes are alternately arranged along more than three concentric circumferences; the cylinder body is positioned on the upper part of the filling device; the lower part of each water distribution branch pipe is provided with more than two water outlets; the water outlets are connected with the water outlet pipe; a reflowing pipe of the water outlet pipe is mixed with the water inlet pipe by a circulating pump and is communicated with the water distribution main pipe; a first medicating device and a second medicating device are communicated with the water inlet pipe respectively through connecting pipes; the filling device comprises a filling rack, a membrane hanging rack and a zonal biomembrane strip; the biomembrane strip is hung on the membrane hanging rack; and the sludge discharge device comprises a sludge discharge main pipe and six sludge discharge branch pipes arranged in length alternation along radial direction. The anaerobic reactor has the characteristics of reasonable water distribution, compact structure and stable operation of the reactor.

The self exciting oscillation pipeline type flocculator is for water supply, industrial waste water and domestic sewage treating engineering and possesses flocculation, deposition, floating and other functions. The flocculator includes water nozzle, mixing cavity, upper nozzle, self exciting cavity and lower nozzle connected successively through pipeline; as well as chemical adding tank, flow rate regulating valve and flocculant conveying pipe with outlet to the mixing cavity connected together. The present invention has raised colloid particle bridging and adsorbing effect and thus raised flocculating efficiency. The flocculator has the pulse flow with pressure amplitude 15-30 úÑ higher than that of inflow.

The invention discloses a double-cycle desulphurization and dust removal device and a flue gas desulphurization and dedusting method. The double-cycle desulphurization and dust removal device comprises a tower body with a flue gas inlet and a flue gas outlet, a first-stage spray layer positioned above the flue gas inlet, a first-stage liquid storage hopper positioned below the first-stage spray layer, a first-stage spray pump respectively connected to the first-stage liquid storage hopper and the first-stage spray layer, a second-stage spray layer positioned above the first-stage spray layer, a second-stage liquid storage hopper positioned above the first-stage spray layer, a second-stage spray pump respectively connected to the second-stage liquid storage hopper and the second-stage spray layer, and a Venturi tube arranged inside the second-stage liquid storage hopper. According to the flue gas desulphurization and dedusting method, flue gas undergoes first-stage spray to remove most pollutants in flue gas and then the flue gas undergoes second-stage spray to enhance the desulphurization and dedusting effect so as to meet the requirement of flue gas emission. The desulphurization and dust removal device of the invention has advantages of high integration level, small size, small floor space and high desulphurization and dedusting efficiency.

The invention discloses a supercooling plate heat exchanger, which comprises a heat exchange area with a heat flow side outlet and a heat flow side inlet at two ends respectively. A main heat exchange area is arranged between the heat flow side outlet and the heat flow side inlet of the heat exchange area and comprises at least two sections of areas, convex ribs and concave ribs which are all provided with included angles decreased progressively along the macroscopic flow direction of the fluid on the heat exchange area are arranged in each section of the heat exchange area, and the included angles are acute angles formed between the convex ribs and the macroscopic flow direction. The supercooling plate heat exchanger can improve condensate depression and improve heat exchange efficiency.

The invention provides integrated sewage harmless equipment, and belongs to the technical field of sewage and sludge treatment. The equipment comprises a flow meter, a valve, an ultrasonic / ultraviolet reaction tank, a flow guide partition plate, an ultraviolet lamp UVC, an overflow water outlet pipe, an emptying port I, an overflow water tank, a secondary treatment water inlet control valve, an ultrasonic / photocatalytic reaction tank, a flow guide partition plate loaded with a photocatalyst, a flow guide partition plate slot, a photocatalytic light source UVA, a water outlet, an emptying port II and an ultrasonic transducer. Under the combined action of ultrasonic waves, ultraviolet rays and photocatalytic reaction, multiple purposes of inactivation of pathogenic microorganisms in sewage, degradation of antibiotics and resistant genes of the antibiotics and the like are achieved, and harmless treatment of the sewage is achieved. The technology can greatly reduce the risk of by-products caused by chemical agent disinfection, is simple to operate, does not need auxiliary equipment and facilities, is safe and efficient, and is especially suitable for harmless treatment of secondary effluent of a sewage treatment plant, biogas slurry and sewage with similar properties.

The invention belongs to the technical field of heat exchange, and discloses a high-efficient anti-scale heat exchanger and an industrial waste heat recovery system. The high-efficient anti-scale heatexchanger comprises a box body, a first stage water collector, one or more second stage water collectors, a first stage water separator, two stage water separators and coils; a water inlet and a water outlet are formed in the box body, the first stage water collector is arranged in the box body, one ends of the second stage water collectors are closed, the other ends of the second stage water collectors are in communication with the first stage water collector, the first stage water separator is arranged in the box body, each two stage water separator is arranged opposite to one two stage water collector, one ends of the two stage water separators are closed and the other ends of the two stage water separators are in communication with the first stage water separator, the coils are in spiral structures, one ends of the coils are in communication with the second stage water collectors, and the other ends of the coils are in communication with the opposite second stage water separators.Through the coils with spiral structures, a heat exchange area in unit volume is effectively increased, and the heat exchange efficiency is improved. In addition, the coils expand and contract slightly due to change of the medium temperature inside and outside tubes, scale formed on the outer surfaces of the coils falls off by itself, and accumulation of the scale is effectively avoided.

The invention relates to the technical field of stirring devices and particularly to a hydraulic stirring device. The stirring device comprises a supporting column and a cylinder arranged on the supporting column. The upper end of the cylinder is provided with a feeder, and the lower end of the cylinder is provided with a discharging pipe; a stirring spray head I is arranged on the inner wall at the upper part of the cylinder, and a nozzle of the stirring spray head I is arranged to be tilted downwardly at an angle of 6 to 10 degrees; a stirring spray head II is arranged on the inner wall at the lower part of the cylinder, and a nozzle of the stirring spray head II is arranged to be tilted upwardly at an angle of 6 to 10 degrees; the stirring spray head I and the stirring spray head II are arranged at opposite directions; and an inert stirring wheel is provided at a central position at the lower part in the cylinder. According to the invention, the device does not need to be driven by an electrical machine or a motor, and the technical problems of a high fault rate, troublesome operation, poor stirring effects and the like in the prior art are effectively overcome.

The invention discloses an ultrafiltration membrane assembly integrating catalytic oxidation and carrying a catalyst, and belongs to the field of water pollution treatment equipment. The ultrafiltration membrane assembly comprises a shell composed of an upper sealing cover, a barrel and a lower sealing cover. A hollow fiber ultrafiltration membrane carrying the catalyst and an ultraviolet lamp are fixedly installed in the barrel through an upper tube plate and a lower tube plate. An ultrafiltration water inlet tube, an air inlet scrubbing tube and an ozone adding tube are arranged on the lower sealing cover. Water flow can be pushed to move from bottom to top, the hollow fiber ultrafiltration membrane is made in a shaking state, the catalyst carried on the ultrafiltration membrane is evenly irradiated by ultraviolet light easily, the mass transfer effect between the ultrafiltration membrane carrying the catalyst and ozone and pollutants is enhanced, and therefore the catalytic oxidation effect is enhanced. The ultrafiltration membrane assembly integrates the functions of intercepting suspended solids and colloid, degrading organic pollutants, killing bacteria and the like and provides reliable guarantees for recycling of sewage or nanofiltration and reverse osmosis pretreatment of sewage.

The invention discloses an ultrafiltration membrane reclaimed water treatment device integrating catalytic oxidation and a supported catalyst and belongs to the field of water pollution treatment equipment. The reclaimed water treatment device comprises a closed tank and an ultrafiltration membrane assembly arranged in the tank. An ultrafiltration membrane of the supported catalyst in the ultrafiltration membrane assembly is spaced with an ultraviolet lamp. An aerator and an ozone releaser are distributed below the ultrafiltration membrane, water flow can be pushed to move from bottom to top, the dual functions of water flow and bubbles rich in ozone can promote the jitter state of the hollow fiber ultrafiltration membrane, the catalyst supported on the ultrafiltration membrane can be evenly irradiated easily through ultraviolet, the mass transfer function among the ultrafiltration membrane of the supported catalyst, ozone and pollutants can be enhanced, and the effect of catalytic oxidation is improved. The water treatment device integrates the functions of suspended matter and colloid interception, organic pollutant decomposition, sterilization and the like, and a reliable guarantee is provided for resource regenerative utilization of sewage or preprocessing of nanofiltration and reverse osmosis.

A single tank cleaning machine, comprising a cleaning tank (1), a cleaning base (2), and a lifting filter device (3), wherein: the cleaning tank (1) is equipped with a cleaning solution (4), and the cleaning tank (1) An ultrasonic transducer (5) is installed at the bottom, and a roller (6) is installed at the bottom of the cleaning tank (1). The ultrasonic transducer (5) is externally connected to an ultrasonic power supply. While filtering the cleaning liquid, it also realizes the automatic rising of the workpiece to be cleaned, which greatly improves the service life of the cleaning liquid and greatly reduces labor costs and labor intensity.

The invention discloses a little oil burner of a double-sided ignition combination blunt body. A primary air pipeline is communicated with a secondary coal dust combustion chamber through a section of coal dust concentrator formed by a tapered pipeline with a throat part formed through invagination, a primary coal dust combustion chamber is arranged in the secondary coal dust combustion chamber, and the secondary coal dust combustion chamber extends into a tertiary coal dust combustion chamber. The upper side surface and the lower side surface of the tertiary coal dust combustion chamber connected with the secondary coal dust combustion chamber are provided with a plurality of secondary air inlets in equal intervals, an upper oil combustion chamber and a lower oil combustion chamber are arranged on the primary coal dust combustion chamber after aslant penetrating through the secondary coal dust combustion chamber, a combination blunt body is arranged at the port of the secondary coal dust combustion chamber, and a plurality of through-flow holes are arranged on the upper surface and the lower surface of the second coal dust combustion chamber positioned in the tertiary coal dust combustion chamber. By adopting the top and bottom arrangement of two oil guns, coal dust entering into the primary coal dust combustion chamber are ignited in a double side way, which strengthens turbulent mass and heat exchange of coal dust current and oil flame to rapidly heat the coal dust and form a fire curtain, thereby prolonging the residence time of the coal dust and strengthening the ignition process.

A two-section type absorption water chilling unit directly using blast furnace slag flushing water as a heat source comprises a unit body, and the unit body comprises a high-temperature generator and a low-temperature generator. The high-temperature generator and the low-temperature generator are sequentially connected, an inlet of the high-temperature generator is connected with a slag flushing water inlet pipeline, and an outlet of the low-temperature generator is connected with a slag flushing water outlet pipeline. According to the two-section type absorption water chilling unit, waste heat of the slag flushing water can be directly and fully utilized for refrigeration, the waste heat utilization rate of the slag flushing water is greatly increased, the requirement for temperature reduction of circulating of the slag flushing water can be completely met, and therefore the service life of a pump and equipment is effectively prolonged, and the two-section type absorption water chilling unit is beneficial to normal work of water slag conveying, slag precipitation and a slag filter; and the requirements for waste heat utilization and slag flushing water circulation temperature can be met at the same time only through the unit body, no additional equipment needs to be added for assistance, the structure is simple, and operation is easy and convenient.

The invention discloses a carbon powder slurrying device. The carbon powder slurrying device comprises a body, an accommodating space is defined in the body, a conical feeding hopper is arranged at the upper part of the body, a liquid inlet structure is arranged in the middle of the body, the lower part of the body is conical, an air inlet and a pneumatic stirring structure are arranged at the conical bottom, a liquid outlet pipeline is arranged at the conical side part, the liquid inlet structure comprises an external liquid inlet pipeline arranged in the middle of the body and an internal annular liquid inlet pipeline arranged on the inner wall of the middle of the body, liquid outlets are distributed in the internal annular liquid inlet pipeline, the pneumatic stirring structure comprises a compressed air pipeline and a spherical sieve plate, the compressed air pipeline is connected with the air inlet, and the spherical sieve plate is arranged at the air inlet. According to the carbon powder slurrying device, by optimizing the structural design, carbon powder and a solution can be rapidly mixed and fully stirred and slurried, flying dust cannot be generated, and the carbon powder slurrying device has the advantages of being easy to operate, capable of saving investment, environmentally friendly, uniform in solid-liquid mixing, high in carbon powder utilization rate, low in unit consumption, low in production cost and the like.

The invention discloses an electrochemistry pole plate for processing electroplating wastewater. The electrochemistry pole plate comprises a pole plate body. The surface of the pole plate body is provided with a plurality of rows of pits, the diameter of the pits is 3-6 mm, and the depth of the pits is 2-6 mm. The distance between the center points of every two adjacent pits is 15-25 mm. According to the electrochemistry pole plate for processing the electroplating wastewater, the advantages of the pits and holes are combined, effective contact, fluid states, reaction environments and the like of the pole plate and an reaction water body are improved, the ton water energy consumption of electrochemistry equipment is reduced, the replacing cycle of the pole plate is prolonged, and the effluent quality is stabilized.

The invention discloses an immersion type needle-plate discharge plasma sewage treatment unit which comprises a reaction vessel, a gas circulating pump, a discharge protection cover arranged inside the reaction vessel, a positive pole and a negative pole. A discharge polar plate is arranged inside the discharge protection cover. The discharge polar plate is connected with one end of the positive pole, and the other end of the positive pole passes through a positive protective tube to be connected to a positive electrode of a high frequency high voltage power supply. A negative electrode of the high frequency high voltage power supply is connected with one end of the negative pole. The other end of the negative pole passes through a negative protective tube to be arranged inside the discharge protection cover, corresponding to the discharge polar plate. The unit provided by the invention has advantages of stable and reliable operation, simple structure, strong practicality, high treatment effect, high energy utilization rate and the like, and can be widely applied in the field of sewage treatment.

The invention relates to the technical field of power machinery, in particular to a centrifugal draught fan impeller. The impeller comprises a front disc, a rear disc and multiple blades, the blades are arranged in the impeller in the circumferential direction of the impeller at intervals, the upper and lower end faces of the blades are fixedly connected with the front disc and the rear disc respectively, each blade is provided with a blade pressure face and a blade suction face, each blade is divided into a forward blade and a backward blade in the length direction of the blade, wherein two thirds of section from an air inlet to the blades is a forward blade profile, and the back one third of section is a backward blade profile. The blades in the impeller not only combines the disadvantages of the forward blade profile and backward blade profile, but also is equidistantly provided with V-shaped groove structure on a pressure surface of the backward blade. The centrifugal draught fan impeller has the advantages that surface load of the blades in the impeller are uniformly distributed, the unbalanced vibration is reduced, the turbulent state of the gas of boundary layers of the blades is increased, and the probability and energy of particles hitting the surfaces of the blades are reduced, thereby playing roles in vibration attenuation and erosion resistance.

The invention belongs to the technical field of methanol production, specifically a methanol production method and its production equipment. The steps of the methanol production method are as follows: S1: raw material preparation: firstly, coke oven gas and coal-based synthesis gas are mixed to form Mixed gas; S2: raw material purification: pass the mixed gas into the filter to filter out impurities such as oil and dust carried by the mixed gas, and then compress the mixed gas through the first heat exchanger for heat exchange and temperature increase; the invention provides a A methanol production method and its production equipment to solve the problem of inorganic sulfur and organic sulfur in the mixed gas. Generally, the mixed gas is directly passed into the fine stripping tower for desulfurization, but the fine stripping tower is used to decompose and desulfurize the organic sulfur. Not only is the desulfurization effect on inorganic sulfur poor, but the presence of inorganic sulfur also easily affects the decomposition and removal of organic sulfur.