718 results about "Static mixer" patented technology

The invention provides a static mixer with a bionic starfish type inlet structure and a mixing method thereof. The static mixer comprises a shell, a cavity is formed in the shell, one end of the shell is provided with an air inlet communicating with one end of the cavity, and the other end of the shell is provided with an air outlet communicating with the other end of the cavity; an air inlet pipe set is arranged at the end, close to the air inlet, of the shell and comprises a center air inlet pipe extending in the axial direction and five peripheral air inlet pipes evenly distributed in the circumferential direction of the center air inlet pipe. The central air inlet pipe and the peripheral air inlet pipe form a bionic starfish type inlet structure for simulating a central disc and a radiation wrist structure of starfish; a plurality of spiral pieces arranged in the axial direction of the cavity are arranged in the cavity, and the arrangement angles of the adjacent spiral pieces are different. By means of the bionic starfish type inlet structure design, hydrogen is evenly dispersed to the whole mixing area, the mixing uniformity of natural gas and hydrogen is effectively improved, and meanwhile the risk of hydrogen embrittlement is delayed.

The utility model discloses a multi-element gas automatic mixing device which comprises a plurality of gas branches, all the gas branches are jointly connected with a gas main path, the gas main path is connected with a mixing tank, the gas main path is provided with a static mixer, the mixing tank is provided with a dynamic mixer, and the static mixer is connected with the dynamic mixer. A gas outlet of the mixing tank is sequentially provided with a first-stage buffer tank, a second-stage buffer tank, a third-stage buffer tank and a first gas storage chamber in the gas conveying direction, and efficient mixing of gas is achieved through a static mixer and a dynamic mixer. The static mixer utilizes a spiral structure to generate rotation and turbulent flow to promote uniform mixing of gas; under the condition that the gas flow speed is lower or the gas types are more, the dynamic mixer is provided with an electric stirring blade, the mixing uniformity is further improved through mechanical stirring, the gas enters the buffer tank after being mixed through the arrangement of the multi-stage buffer tank, the pressure fluctuation is reduced, and the flow speed is homogenized. And the repeated diffusion and distribution process in the buffer tank improves the mixing uniformity of the gas.

A static mixer includes a mixer housing, a mixing element including mixing bodies arranged one after another along a longitudinal axis so as to be capable of repeated separation and recombination of components, each of the mixing bodies including a first and second inlets, first and second lateral outlets and an intermediate outlet disposed between the first and the second lateral outlet, an input wall separating the first and second inlets, a deflection element arranged downstream of and adjacent to the input wall, first and second output walls arranged downstream of and adjacent to the deflection element, the first output wall separating the first lateral outlet and the intermediate outlet and the second output wall separating the intermediate outlet and the second lateral outlet.

The invention discloses a polyurethane foam preparation process and device based on liquid carbon dioxide foaming, and belongs to the field of polyurethane production. The preparation process comprises the following steps: S1, conveying polyether polyol, polymer polyol and a liquid carbon dioxide foaming agent into a front static mixer, uniformly mixing under a certain pressure state, and conveying into a main mixer; s2, inputting isocyanate into a main mixer in a high-pressure state, and uniformly mixing and stirring the isocyanate and other uniformly mixed raw materials in the main mixer; s3, conveying the water, the silicone oil surfactant, the foaming catalyst and the gel catalyst into a main mixer, stirring and mixing with the raw materials, and conveying into an emulsifier; s4, the mixed raw materials and auxiliary materials are subjected to step-by-step pressure release through a multi-layer screen structure of the emulsifier, so that the liquid carbon dioxide is gradually converted into a gas state from a liquid state in the emulsification and pressure release process and is gradually gasified and foamed, and finally the soft polyurethane foam is prepared through pouring.

The utility model discloses a polyester reverse esterification kettle on-line adding device which comprises a first esterification kettle and a second esterification kettle, a batching pipeline is arranged between the first esterification kettle and the second esterification kettle, and a three-monomer on-line injection system is arranged on one side of the batching pipeline. A second static mixer, a dynamic mixer and a pneumatic valve are sequentially arranged on the batching pipeline between the three-monomer on-line injection system and the second esterification kettle, and materials prepared by the three-monomer preparation system are injected into a connecting pipeline through the three-monomer on-line injection system; and then the mixture enters the second static mixer and the dynamic mixer to be mixed and then is injected into the second esterification kettle through the pneumatic valve. The transformation from production of extinction products to production of cationic products can be quickly realized in the five-kettle process, so that the productivity and the quality of the products are ensured, and benefits are created for enterprises to be maximized.

The invention relates to the technical field of sewage treatment, in particular to a CCRO high-efficiency water treatment system and a working method thereof. Comprising a sewage tank, a water supply pump, a scale inhibitor injection module, a sodium hydrogen sulfite injection module, a bactericide injection module, a security filter, a static mixer, a high-pressure pump, a reverse osmosis membrane assembly, a reaction tank, a circulating pump, a cleaning pump, a water production tank and a concentration device which are connected through pipelines, the sewage tank, the water supply pump, the security filter, the static mixer, the high-pressure pump, the reverse osmosis membrane assembly, the reaction tank, the circulating pump, the cleaning pump and the water production tank are all provided with an outlet and an inlet, and the reverse osmosis membrane assembly is also provided with a drain outlet; the sewage pool, the water supply pump, the static mixer, the security filter, the high-pressure pump, the reverse osmosis membrane assembly and the water producing pool are sequentially connected through the outlet and the inlet through pipelines; the problem that an existing CCRO water treatment system is insufficient in automation degree can be effectively solved, the sewage treatment efficiency and quality are improved, the operation and maintenance cost is reduced, and wide application prospects are achieved.

The utility model relates to a system for reducing the acid value of hydrolysate in the separation and washing process of dimethyl dichlorosilane hydrolysate. Comprising three stages of coalescers, dimethyl dichlorosilane acidic hydrolysate enters the system from the first stage of coalescer, process water enters the system from the third stage of coalescer, the acidic hydrolysate and diluted hydrochloric acid or process water are mixed in each stage of coalescer, oil-water two-phase separation is completed through multiple times of washing and coalescence, and meanwhile the acid value of the hydrolysate is reduced; each stage of coalescer comprises two static mixers connected in series, a group of prefilters and a large coalescer, the coalescer is Z-shaped, and four stages of filter elements are arranged in each stage of coalescer. Through repeated tests, a modified polyvinylidene fluoride filter element of Pall Company is finally selected, and after continuous three-stage coalescer treatment, the acid value of dimethyldichlorosilane hydrolysate can be reduced to 10 PPM or below.

The invention provides a dynamic cross-linked polyolefin elastomer and a preparation method thereof. According to the method, a double-kettle serial solution polymerization process is adopted, a reaction material is generated through a polymerization reaction in a first reaction kettle, the reaction material is transferred into a second reaction kettle added with a dynamic cross-linking agent and an initiator for continuous reaction and then enters a devolatilization system, a quenching agent is added through a static mixer, then granulation is performed through a screw extruder, and the dynamic cross-linked polyolefin elastomer is obtained. According to the preparation method, dynamic chemical crosslinking is carried out in the production process of the polyolefin elastomer, and the mechanical property and thermal stability of the obtained polyolefin elastomer product can be improved on the premise of ensuring the processability.

The invention discloses a supercritical fluid assisted polymer devolatilization distributor. The supercritical fluid assisted polymer devolatilization distributor comprises a gradually-shrinking channel, a throttling channel and a gradually-expanding channel which are connected in sequence. A static mixer is arranged in the throttling channel, the upstream pressure is maintained to be above a supercritical state by increasing fluid resistance, meanwhile, the mixing effect of supercritical fluid and polymer melt is enhanced, stable and uniform foam flow is formed, and pressure fluctuation is avoided; an automatic pressure relief valve assembly is arranged on the upper portion of the divergent channel and composed of a valve opening, a valve cover plate, a spring, an adjusting knob and the like, when the system pressure exceeds a set value, exhaust is automatically started, and controllable pressure relief is achieved. A plurality of rows of flow distribution holes are formed in the lower part of the distributor to ensure that the melt uniformly flows out to form stable melt strips; the problems that traditional equipment is difficult to pressurize and not timely in pressure relief are solved, the supercritical state maintenance, gas-liquid separation and melt forming processes are optimized, the volatile component removal efficiency is improved, the phenomenon that melt strips are broken or accumulated is effectively prevented, and continuous and stable operation of the devolatilization process is guaranteed.

The embodiment of the specification provides an astaxanthin extraction device, the device comprises a mixing tank, a cavitator, a static mixer, a three-phase centrifuge and a precision filter, the mixing tank is configured to mix haematococcus pluvialis, water and phospholipase to form uniform algae slurry; the cavitator is configured to receive the algae slurry and perform wall breaking on the algae slurry by utilizing hydrodynamic cavitation to obtain wall-broken algae slurry; the static mixer is configured to mix the wall-broken algae slurry and an extraction agent to form mixed algae slurry; the three-phase centrifugal machine is configured to receive the mixed algae slurry and perform three-phase separation on the mixed algae slurry to obtain an astaxanthin oil phase, a water phase and algae residues; the precision filter is configured to filter the astaxanthin oil phase so as to remove residual algae residues, and the astaxanthin oleoresin is obtained.

The invention discloses a powder multidirectional pneumatic conveying channel structure based on mixed material processing, and relates to the technical field of pneumatic conveying, the powder multidirectional pneumatic conveying channel structure specifically comprises a buffer mixing cylinder, the bottom of the buffer mixing cylinder is provided with a sealing ball valve, the bottom of the sealing ball valve is fixedly communicated with a first flow channel through a flange, and one end of the first flow channel is fixedly connected with a material distributing cylinder; a runner II is fixedly communicated with one side of the material distributing barrel, and a feeding pipe is also communicated with one side of the material distributing barrel; through two core designs of mechanical linkage self-adaptive regulation and intelligent on-demand energy supply, the energy efficiency ratio and the operation flexibility of the system are remarkably improved while the problem of powder conveying layering is solved, an efficient and reliable solution is provided for long-distance and multi-component powder pneumatic conveying, and compared with a static mixer, the energy efficiency of the system is greatly improved. The problem of separation caused by material characteristic difference is solved, and energy consumption increase caused by a multi-section mixer is avoided.

A burner (3) according to one embodiment is for generating a flame by burning an air / gas fuel mixture gas, and the burner comprises a cylindrical body (4A) that surrounds a premixing zone (40) including a plurality of mixing flow paths (8) disposed in the circumferential direction. The cylindrical body (4A) forms a nozzle (41) that injects the mixture gas. Further, the burner (3) comprises a plurality of static mixers (9) that mix the gas fuel and the air and that are disposed in the respective mixture flow paths (8).

The utility model discloses a diphenylmethane series amine reaction device, and belongs to the technical field of integrated condensation reactors, the diphenylmethane series amine reaction device comprises a salifying-condensation reactor, a plug flow reactor is arranged on one side of the salifying-condensation reactor, the salifying-condensation reactor comprises a reaction kettle, a double-layer hollow stirring shaft is arranged in the reaction kettle, and the double-layer hollow stirring shaft is connected with the plug flow reactor. A static mixer is arranged on one side of the reaction kettle; the multi-nozzle static mixer with the built-in condensation assembly can strengthen the mixing effect, the static mixer is directly connected with the reaction kettle, salt forming reaction liquid can be effectively prevented from staying in a pipeline and reducing the color of a system, and the hollow stirring shaft is beneficial to rapid mixing and timely removal of reaction heat; according to the device, aniline and hydrochloric acid as well as aniline hydrochloride and formaldehyde are rapidly and uniformly mixed, reaction heat is removed, local overheating and hot spots are avoided, generation of by-products can be reduced, colors of products and downstream products are effectively improved, the quality of the downstream products is improved, and the device is suitable for large-scale industrial production and high in synthesis efficiency.

To provide a static mixing apparatus for producing long-term sustainable ozone water that can be easily downsized and can sustain an ozone density for a long term even when inflow pressure of liquid is low.SOLUTION: A static mixing apparatus (40) produces long-term sustainable ozone water having ozone gas sustained for a long term, from liquid mixed with ozone including ozone gas. The static mixing apparatus comprises a static swirl flow generating part (41), arranged in a first tube (TU), which makes the liquid mixed with ozone conveyed from the first tube generate swirl flow, and a cavitation generating part (44), arranged in the first tube, which makes the liquid mixed with ozone swirled in the swirl flow generating part generate cavitation. The cavitation generating part (44) includes a shaft part, a first unit (441) in which a predetermined number of fins are arranged at a first angle around the shaft with respect to a direction of the first tube, and a second unit (442) in which a predetermined number of fins are arranged at the first angle around the shaft part.SELECTED DRAWING: Figure 2

A system for reducing blood loss during removal of material from a body lumen includes an elongate shaft, an aspiration lumen, and a flow resistance assembly. The elongate shaft can be placed within a blood vessel and has a distal end with an opening at the distal end. The aspiration lumen extends along the shaft and has a proximal end and a distal opening. The flow resistance assembly is associated with the aspiration lumen and is configured to resist blood flow through the aspiration lumen in a free-flow condition without operating a valve in fluid communication with the aspiration lumen. The flow resistance assembly may include a coiled section of tubing, a static mixer, or flow resistance structures.

The utility model discloses a urea solution dilution and mixing device, which relates to the technical field of solution dilution. The utility model comprises a first input pipe, a first control mechanism is arranged on the first input pipe near the right side, a second input pipe is arranged on the lower side of the first input pipe, a second control mechanism is arranged on the second input pipe near the right side, the right ends of the first input pipe and the second input pipe are both connected with the left side wall of a filter cartridge, a filter mesh sleeve is fixedly installed on the inner wall of the filter cartridge near the middle position, a mixing mechanism is arranged on the lower surface of a sealing cover, a connecting pipe is fixedly installed on the right side surface of the filter cartridge, and a static mixer is installed on the right side surface of the connecting pipe. The utility model has a double mixing and dilution function, so that the mixing is uniform, and the dilution and mixing efficiency is higher, so that the large-scale production needs can be met, and the dilution ratio can be more accurately controlled, so that the impurities in the urea solution can be filtered and purified, so that the urea solution can be processed and used later.

The invention discloses an automatic ammonia preparation device for adding ammonia water into condensed water at multiple points, and belongs to the technical field of industrial water treatment. Comprising an ammonia preparation unit, a multi-path adding unit and a control unit, the ammonia preparation unit comprises an ammonia water storage tank, a desalted water tank, a mixing and diluting tank, a first metering pump, a second metering pump and an online conductivity meter; the ammonia preparation unit is used for mixing ammonia water and desalted water in proportion; the multi-path adding unit comprises a main distribution pipeline and at least three parallel adding branches, each adding branch is communicated with a regulating valve, a flow meter and a static mixer, and the multi-path adding unit is used for adding mixed ammonia water to a plurality of adding points of the condensed water system; the control unit comprises a PLC (Programmable Logic Controller) and a pH sensor, the pH sensor is used for monitoring the pH value of condensed water at each feeding point, the PLC is in signal connection with the pH sensor, the online conductivity meter, the regulating valve and the flow meter, and the control unit is used for realizing dynamic flow distribution.

Formulation delivery systems, formulation delivery devices, and formulation cartridges for the same are provided. Formulation delivery systems include a reusable handle, a formulation dispensing assembly, and a controller. The formulation dispensing assembly includes a reciprocating nozzle assembly and a pump. The reciprocating nozzle assembly is fluidically-coupleable to the formulation cartridge or the cleaning cartridge received within the reusable handle. Formulation delivery devices include a reusable handle configured to receive a formulation cartridge therein, and a formulation dispensing assembly disposed in the reusable handle. The formulation dispensing assembly includes fluid conduits, a pump fluidically connected to the fluid conduits, a reciprocating nozzle assembly, and a controller. Formulation cartridges include a reusable cartridge body and a formulation cartridge refill unit.

The utility model provides a natural gas hydrogen-doped static mixer which comprises a natural gas conveying pipeline and a hydrogen conveying pipeline which is vertically arranged on the side wall of the natural gas conveying pipeline. A plurality of first mixing structures and second mixing structures are sequentially arranged on the downstream of the communicating position of the hydrogen conveying pipeline and the natural gas conveying pipeline at intervals, each first mixing structure comprises a plurality of waved plates, and the waved plates are sequentially distributed left and right at intervals. The second mixing structure comprises a plurality of groups of first mixing sub-groups and second mixing sub-groups which are sequentially distributed at intervals from top to bottom; each of the first mixing sub-groups and the second mixing sub-groups comprises a plurality of strip-shaped partition plates. Natural gas and hydrogen are fully cut and mixed through the first mixing structure and the second mixing structure in the mixer, the mixing uniformity of the natural gas and the hydrogen is improved, and then the use safety of gas equipment is improved.

A dimethyl sulfoxide synthesis system and a synthesis method, the system comprising: a fixed bed reactor (2) used to synthesize dimethyl sulfide, and an oxidation reactor (4) used to synthesize dimethyl sulfoxide. An external intensification unit (9) is disposed outside the oxidation reactor (4), the external intensification unit (9) comprising a first intensification reactor (901) and a second intensification reactor (902), the first intensification reactor (901) being disposed above the second intensification reactor (902), the first intensification reactor (901) being connected to a discharge port at a bottom end of the fixed bed reactor (2), the second intensification reactor (902) being connected to a nitrogen dioxide or oxygen storage tank (13), a connecting pipe (903) being disposed between the first intensification reactor (901) and the second intensification reactor (902), and a static mixer (904) being disposed in the connecting pipe (903).

The invention relates to a precise regulation and control device for fertilizer injection and mixing and a working method, the precise regulation and control device comprises a fertilizer injection unit and a fertilizer mixing unit, and the fertilizer injection unit comprises an irrigation branch and a fertilizer injection branch; the irrigation branch is used for feeding water required by irrigation into an inlet of the static mixer through a pipeline; the fertilizer injection branch is used for feeding a fertilizer into an inlet of the static mixer through a pipeline; the fertilizer mixing unit comprises a static mixer, a premixing tank, a buffer tank and a water and fertilizer pump which are sequentially connected through a pipeline, an EC sensor and a pH sensor are arranged in the static mixer, the premixing tank and the buffer tank, and stirrers are arranged on the premixing tank and the buffer tank; the water and fertilizer concentration control unit is configured to determine the duty ratio of a pulse width modulation electromagnetic valve according to the EC value and the pH value of the water and fertilizer solution in the buffer tank so as to realize regulation and control of the fertilizer injection amount; according to the EC value, the pH value and the corresponding deviation ratio of the water and fertilizer solution in the set time period in the static mixer, the fertilizer mixing uniformity condition is determined, and the operation condition of the stirrer is regulated and controlled.

The invention belongs to the field of mixers, and particularly relates to a static mixer, a preparation method, a water-based fire extinguishing agent continuous production device and a production process. The static mixer comprises a plurality of continuous mixing elements; each mixing element comprises three triangular blades, namely a first triangular blade, a second triangular blade and a third triangular blade, and the second triangular blade and the third triangular blade are respectively connected with two angle edges of the first triangular blade; and the second triangular blade and the third triangular blade are arranged in opposite directions. According to the static mixer designed by the technical scheme of the invention, rapid mixing among fluids is realized, continuous operation in whole-flow pipeline reaction is realized, the problems of long stirring time and non-uniform mixing in current intermittent operation are solved, the working intensity of operators can be reduced, and the production efficiency is improved.

The utility model relates to a spiral belt type static mixer, which is used for fully mixing fluid for heat exchange, is connected with a heating medium device and comprises a first pipeline and a second pipeline sleeved outside the first pipeline, and both the first pipeline and the second pipeline are connected with the heating medium device. A fluid channel for fluid to flow is arranged between the first pipeline and the second pipeline; a plurality of mixing units are arranged in the fluid channel, a spiral channel consisting of a plurality of spiral bands is arranged in each mixing unit, fluid is mixed in the spiral channels, and the spiral channels in the adjacent mixing units are opposite in rotation direction. According to the utility model, by arranging the mixing units with opposite rotation directions, the fluid mixing effect is enhanced; no obvious dead zone exists in a fluid channel, and the problem that the heat exchange effect is poor due to the too thick boundary layer is solved; the second pipeline on the outer side and the first pipeline on the inner side can convey heat transfer media at the same time, the overall heat exchange effect of the pipeline can be remarkably enhanced, and the fluid temperature is more uniform.

The utility model belongs to the technical field of fiber production, and particularly relates to a fiber spinning device which comprises a spinning box, a static mixer is fixedly arranged at the top of the spinning box, a booster pump is fixedly arranged at the top of the static mixer, a material guide pipe is arranged at the top of the booster pump, and a spinning assembly is arranged in the spinning box. The temperature detector, the central controller, the alarm, the guide plate, the conductive block, the transverse plate and the push rod motor are arranged, the temperature detector monitors the temperature in the spinning box in real time and transmits the temperature data to the central controller, and when the temperature in the spinning box is lower than or higher than the preset temperature, the central controller starts the push rod motor, so that the temperature in the spinning box is monitored. The push rod motor pushes the guide plate, when the conductive block at the top of the guide plate is attached to the positive pole, the alarm is powered on to give an alarm, and related personnel can know that the temperature in the equipment does not reach the standard in the first time, so that corresponding measures can be taken in time, the breakage rate of subsequent processing is reduced, and the production quality of fibers is ensured.

A UV disinfectant system may include a chamber having a wall that is transparent to a disinfecting radiation. Liquid may be flowed through the chamber for treatment by exposure to the radiation. The chamber may include a static mixer having vanes to impede laminar flow of the liquid during treatment. The vanes extend into the flow path of the liquid through the chamber. A gap is defined between the vanes and the transparent wall. A cabinet may house the chamber and radiation emitting bulbs. Blowers may be operably coupled to a temperature sensor and flow meter and positioned at a lower end and upper end of the cabinet to urge air out of the cabinet. The temperature sensor may include a thermocouple. The blowers may be variable speed blowers. The system may include a controller to control system operations. The controller may be remotely accessible to monitor or control operations.

The invention discloses a fishtail bionic static mixer for strengthening gas-liquid oxidation reaction, and relates to the technical field of chemical process strengthening. The static mixer comprises a reinforcing pipe (1), a fishtail bionic static mixing element (2), a connecting piece (3) and a fixing piece (4). The static mixing element is mainly applied to gas-liquid continuous flow oxidation reaction, and the bionic fishtail shape design of the static mixing element strengthens fluid full mixing by inducing hairpin vortex on the premise of not remarkably increasing energy consumption. The middle ribs and the surface drilling structure are used for shearing and stretching fluid, so that multi-scale flow pattern coupling enhanced bubble group breaking is realized, bubbles in continuous phase liquid are promoted to be uniformly distributed, the gas-liquid interface area is remarkably increased, the reaction time is shortened, and the oxidation reaction efficiency is improved. Meanwhile, the mixing element is simple in structure, free of mechanical parts, energy-saving, efficient, not prone to scaling and capable of stably running for a long time. The technology is particularly suitable for the strong oxidation reaction process in the industries of chemical industry, petrochemical industry, pharmacy and the like.

The invention discloses a differential shrinkage mixed fiber polyester one-step processing technology, which comprises the following steps: after final shrinkage molding of a PET polyester melt through a polyester final shrinkage kettle, injecting the PET polyester melt into a spinning manifold through a melt filter, a booster pump, a melt conveying pipeline, a cooler and a static mixer in sequence; after being distributed, melts in the spinning box body are respectively shunted into a first metering pump and a second metering pump to be injected into corresponding spinning assemblies for feeding; after one half of the spinning assembly discharges filaments, POY tows are obtained through circular blowing cooling and oil nozzle oiling, the other half of the tows enter IBox five hot rollers through a GR0 draw-off godet to be stretched to form FDY tows, and the FDY tows and the POY tows enter a pre-network at the same time to be subjected to network fiber mixing to form preformed ITY tows; and then sequentially entering a GR2 draw-off godet, a main network and a GR3 draw-off godet, carrying out full-automatic integrated winding and doffing to form ITY tows, and finally carrying out quality inspection, packaging and warehousing. The method has the remarkable advantages of being short in technological process, low in energy consumption, high in production efficiency, uniform and stable in quality and high in additional value, and the differential shrinkage rate can be flexibly adjusted.

A method of blending at least two fuels includes providing at least two fuels to a helical static mixer via a fuel supply system, the fuel supply system including a fuel supply circuit for each fuel of the at least two fuels, mixing, via a plurality of helical structures of the helical static mixer, the at least two fuels to form a fuel mixture, determining, via one or more sensors, a measured interchangeability index of the fuel mixture, comparing the measured interchangeability index to a predetermined interchangeability index, adjusting, via the fuel supply system, one or more parameters of at least one of the at least two fuels based on the comparison between the measured interchangeability index and the predetermined interchangeability index, and providing the fuel mixture to a combustion system.

The utility model discloses a device for continuously producing polyether. The device comprises a mixing kettle, a mixing kettle discharging pump, a receiving tank A, a receiving tank discharging pump A, a PO feeding pump, a static mixer, a pipeline reactor, a reactor discharging pump, an adsorption tower, an adsorption tower discharging pump, a receiving tank B, a receiving tank discharging pump B and a distillation tower, the method comprises the following steps: mixing an alcohol raw material and a catalyst in a mixing kettle, pumping into a receiving tank A for temporary storage, pumping the mixed material in the receiving tank A into a static mixer, mixing with epoxypropane, feeding into a pipeline reactor for reaction, pumping the reaction product in the pipeline reactor into an adsorption tower to remove metal elements introduced by the catalyst, a reaction product in the adsorption tower is pumped into a receiving tank B for temporary storage through an adsorption tower discharging pump, a reaction product in the receiving tank B is pumped into a distillation tower for distillation and purification, and purified polyether is obtained. By adopting the continuous production device, the energy consumption can be reduced, the generation of waste gas, waste residues and waste water is reduced, and the production cost is further reduced.

The invention relates to a method for producing silica, in particular precipitated silica, in which a process gas comprising carbon dioxide is used, said gas being dispersed in an alkali metal silicate solution in a static mixer located outside the reaction vessel. The invention also relates to an apparatus for preparing precipitated silica, comprising a reaction vessel (1), a bypass section comprising a static mixer (5), a line (7), an optional metering point (6) and / or a pump (8), where the bypass section is located outside the reaction vessel and is connected to the vessel via a line, and wherein the static mixer is configured to circulate back to the reaction vessel via a line.