175results about How to "Stable concentration" patented technology

The invention discloses a sewage sludge advanced treatment device, which belongs to the technical field of sludge treatment, and comprises a flocculation basin and a dehydration device, a concentration adjusting tank is arranged between the flocculation basin and the dehydration device, the inside of the tank is divided into a high-concentration area and a low-concentration area through a filter plate, the high-concentration area is provided with a first liquid inlet pipe, and the low-concentration area is provided with a second liquid inlet pipe; flowing into a dehydration device through a mixing pump; the filter plate is controlled by a driving mechanism to move so as to change the volume of the high-concentration area, and a first concentration detector is mounted on the first liquid inlet pipe and is used for moving the filter plate to reduce the volume of the high-concentration area when the first concentration detector detects that the concentration is lower than a threshold value; a control valve is installed on the second liquid inlet pipe and used for opening the control valve when the first concentration detector detects that the concentration is larger than the threshold value. The concentration regulating tank is arranged between the flocculation tank and the dehydration device to regulate the concentration of the sludge, so that the concentration of the sludge input into the dehydration device is stable, and the qualified rate of sludge caking is ensured.

The invention discloses a dredging construction method for a trailing suction dredger, which comprises the following steps: setting a construction route in a GPS (Global Positioning System) positioning device, and setting a target downward digging position coordinate of the trailing suction dredger on the construction route in the GPS positioning device; the drag suction dredger moves according to a construction route set in the GPS positioning device, the drag head is started to descend into a mud layer every time the drag suction dredger moves by a first set distance, the mud concentration at the current depth is detected through the mud concentration sensor, and when the mud concentration at the current depth is larger than a set concentration value, the drag head works at the current depth and pumps and loads mud into a cabin. Starting the rake head until the slurry concentration at the current depth is reduced to be lower than a set concentration value, starting the rake head to continuously descend to the next depth, and repeating the process until the rake head reaches the target digging position coordinate until the slurry concentration at the depth corresponding to the target digging position coordinate is reduced to be lower than the set concentration value; and the drag suction dredger completes dredging operation. The drag suction dredging construction efficiency can be improved.

The invention discloses a nitrogen injection displacement enhanced gas extraction system and method, and belongs to the technical field of gas extraction. The output end of a nitrogen generation mechanism of the system is communicated with one end of a nitrogen injection header pipe; one end of each nitrogen injection branch pipe is communicated with the other end of the nitrogen injection main pipe; the other end of one nitrogen injection branch pipe extends into one gas injection drill hole; a pressure sensor and a first electric branch valve are arranged on each nitrogen injection branch pipe; the multiple extraction branch pipes are arranged, and one end of one extraction branch pipe extends into one extraction drill hole. A gas drainage sensor is arranged on each extraction branch pipe; the other ends of the plurality of extraction branch pipes are communicated with one end of the extraction main pipe; the other end of the extraction header pipe is communicated with the input end of the gas drainage pump; the nitrogen generation mechanism, the pressure sensor, the gas drainage sensor, the gas drainage pump and the first electric branch valve are all electrically connected with the control mechanism. The gas extraction efficiency can be improved, and intelligent and accurate monitoring and control are achieved.

The invention discloses an anesthetic gas uniform mixing and anesthetic gas concentration detection device, and relates to the technical field of medical apparatus and instruments. The anesthetic gas concentration detection device comprises a device main body, one side of the device main body is connected with a concentration detection equipment main body through a pipeline, a detection module for detecting the concentration of anesthetic gas is arranged in the concentration detection equipment main body, and a gas mixing device is arranged in the device main body; the gas mixing device comprises a first L-shaped gas pipe, a second L-shaped gas pipe, a T-shaped pipe, a rotating rod and two through hole cylinders. Through the arrangement of the gas mixing device, anesthetic gas and air are rotationally sprayed into the T-shaped pipe through the two through hole cylinders, turbulent flow or airflow disturbance can be generated in the T-shaped pipe, mixing of the gas is facilitated through the disturbance, the anesthetic gas and the air are mixed more evenly, and the anesthetic effect is improved. Therefore, the concentration of the anesthetic gas can be conveniently detected by the concentration detection equipment body in the follow-up process.

The invention belongs to the technical field of semiconductor processing, and discloses semiconductor processing-based etching equipment, which comprises a support box, a processing box and an etching box, a recovery pipe is installed on the left side of the support box, one end of the recovery pipe is communicated with the processing box, the etching box is installed on the top of the support box, and the processing box is communicated with the processing box. And a liquid storage box is installed in an inner cavity of the supporting box and communicates with the treatment box, a pump is installed on the right side of the liquid storage box, and the drainage end of the pump is fixedly connected with a communicating pipe. According to the device, the telescopic rod drives the second sealing plate to contract and move, the recovery opening is opened, and etching waste liquid subjected to consumption reaction is discharged in time, so that the etching liquid in the isolation chamber can be replaced for multiple times, reactant residues on the surface of a wafer can be washed away every time the etching liquid is replaced, the stability of the pH value in the isolation chamber is maintained in time through the design, and the service life of the wafer is prolonged. And the concentration of reactants generated by consumption of the etching liquid in the isolation chamber is reduced, and the reaction rate is increased.

The utility model belongs to the technical field of gas purification, and particularly relates to a desulfurization regeneration tank liquid level adjusting and froth flotation device which is characterized by comprising an inner cylinder, a communicating pipe, an outer cylinder, a lifting screw rod, a limiting tank, a pressure equalizing rod and a horizontal rod, a desulfurization liquid outlet pipe is arranged on one side of the bottom of the outer cylinder, and the top of the outer cylinder is connected with an upper cover. The bottom of the outer cylinder is hermetically connected with a communicating pipe, the bottom of the communicating pipe is a desulfurization liquid inlet, and the desulfurization liquid inlet is communicated with the desulfurization regeneration tank through a flange; an inner cylinder is arranged in the communicating pipe, the top of the inner cylinder is connected with a horizontal rod, the horizontal rod is connected with the bottom end of the lifting screw, and the length of the horizontal rod is larger than the diameter of the communicating pipe; the outer diameter of the inner cylinder is vertically connected with a plurality of pressure equalizing rods, and the ends of the pressure equalizing rods are located in limiting grooves formed in the inner wall of the outer cylinder and slide up and down along with the lifting screw. The liquid level control device has the beneficial effects that the liquid level of the regeneration tank is controlled by adopting a communicating vessel principle, and the mechanism is convenient and reliable to move.

The invention relates to the technical field of nerve calming granules, and discloses sugar-free blood nourishing and nerve calming granules and a preparation method thereof.The sugar-free blood nourishing and nerve calming granules are composed of hairyvein agrimony, prepared rehmannia roots, vine of multiflower knotweed, yerbadetajo herbs, rehmannia roots, suberect spatholobus stems, cortex albiziae and sugar-free auxiliary materials; comprising microcrystalline cellulose, isomaltitol, mannitol, nano silicon dioxide, Arabic gum, hydroxypropyl methyl cellulose and polyvinylpyrrolidone. By optimizing the proportion and process conditions of the auxiliary materials and the synergistic effect of the medicinal material extract and the auxiliary materials, the humidity of the wet granules is controlled to be 30-35%, the granulation pressure is 3-6 MPa, the drying temperature is 50-55 DEG C, and finally the granules with the particle size of 200-400 microns are prepared. According to the invention, the problems of poor particle formability and insufficient disintegration performance caused by removal of sugar are overcome, rapid disintegration, good formability and stability of sugar-free particles are realized, the solubility and taste of the particles are improved, and the sugar-free granules are suitable for long-term administration by diabetics and sugar-sensitive people.

The invention discloses a rotary friction tester for simulating an aviation high-temperature lubrication working condition and a test method, and relates to the technical field of tribology experiments. The rotary friction tester comprises a driving assembly, a rotary friction assembly and a detection assembly which are sequentially arranged on a support frame from top to bottom, the driving assembly comprises a motor and a rotating shaft. The motor drives the rotating shaft to rotate around the axis. The rotary friction assembly comprises an upper clamp and a lubricating medium storage pool, the upper clamp is used for fixing the upper half part of the friction part, and the lubricating medium storage pool is used for fixing the lower half part of the friction part; the detection assembly comprises a force sensor, a torque sensor and a guide column jacking air cylinder, the guide column jacking air cylinder is used for adjusting positive pressure applied to the friction part, the force sensor is used for detecting the value of the positive pressure in real time, and the torque sensor is used for detecting the value of the torque in real time. According to the invention, circulation of the lubricating medium is realized, and dynamic monitoring and performance analysis of the lubricating working condition of the rotating member under different working parameter conditions are realized.

The invention belongs to the technical field of printed circuit boards, and relates to a buried resistor copper foil and a preparation method and application thereof. In the preparation of the buried resistance copper foil, the film with the window is selected to be attached to the upper surface and the lower surface of the copper foil, the copper foil with the resistance window is obtained through etching, then the resistance layer is directly and electrically deposited in the resistance window of the copper foil, and then the film is removed to obtain the buried resistance copper foil. The method can effectively reduce the resistance value difference of the unit area of each square resistance layer on the copper foil so as to improve the resistance value precision of the embedded resistance copper foil, and the preparation process is simple and easy to operate.

The invention discloses a material loading unit which comprises a wrapping layer (1) and a packaging layer (2), the wrapping layer (1) and the packaging layer (2) are connected to form a closed cavity (3), and the cavity (3) is filled with essence; the packaging layer (2) is made of a material which is thermally degraded or deformed. The invention further provides a heating cigarette. According to the material carrying unit and the heating cigarette, essence can be stored in a sealed mode for a long time, and the property and the concentration of the essence are kept stable during storage; meanwhile, the packaging layer can be degraded or deformed under the action of smoke heat, so that sealing of the cavity is broken, the essence in the cavity is released and is smoked and tasted by a consumer along with aerosol generated by heating the fuming substance, the characteristic fragrance represented by the essence is remarkable, and the smoking experience is enriched.

The invention provides a continuous fluid separation system for recovering lithium from mirabilite, and relates to the technical field of continuous fluid separation. A continuous fluid separation system for recovering lithium from mirabilite comprises a plurality of treatment subsystems, each treatment subsystem comprises an exchange area, a material washing area and an acid regeneration analysis area which are arranged in sequence, and each separation unit of the treatment subsystems is filled with a titanium adsorbent filler; the exchange area adopts a three-parallel two-serial feeding mode; gradient washing is carried out in a three-string mode in the material washing area; and the acid regeneration analysis area adopts a three-parallel analysis mode. According to the continuous fluid separation system for recovering lithium from mirabilite, the recovery rate of lithium can exceed 90%, continuous operation is achieved, product components and concentration are kept stable, and the use amount of washing water and an acid regenerant is greatly reduced.

The invention is applied to the technical field of semiconductor processing, and discloses a coarse grinding fluid applied to a diamond substrate, which comprises the following components: a diamond grinding material, a suspending agent, a dispersing agent, an antirust agent, a lubricant, a pH regulator and deionized water, the coarse grinding liquid applied to the diamond substrate comprises the following components in percentage by weight: 0.1 to 5 percent of diamond grinding material, 0.01 to 0.5 percent of suspending agent, 0.01 to 5 percent of dispersing agent, 0.1 to 8 percent of antirust agent, 0.5 to 5 percent of lubricating agent, 0.01 to 0.5 percent of pH regulator and 74 to 95 percent of deionized water. According to the coarse grinding liquid applied to the diamond substrate, the type 3 or more diamond grinding materials are selected, the particle size D50 is 20-60 microns, the particle size D100 is smaller than 100 microns, and the surface of the substrate can be smoother while a surface material of the diamond substrate is removed.

The invention relates to the technical field of lithium battery recovery, and discloses an explosion-proof crushing device for lithium battery recovery based on gas circulation, the explosion-proof crushing device comprises a crushing main body, a crushing device and an inert gas circulation conveying system, the crushing main body is provided with a feeding mechanism and a discharging mechanism, and the crushing device divides the crushing main body into two parts; the gas inlet end of the inert gas circulating conveying system communicates with the crushing body through a plurality of branch pipes, the gas outlet end of the inert gas circulating conveying system communicates with the recycling part of the crushing body through a pipeline, the branch pipes extending into the dissipation part are connected with diffusion pipes fixed to an inner cavity of the crushing body, and a gas outlet channel is formed in the top of the crushing body. According to the device, stability of the concentration in inert gas circulation is achieved through the inert gas circulation system and the gas outlet channel capable of automatically exhausting gas, and meanwhile, the inert gas circulation system can also be matched with the diffusion pipe to gather waste gas at a source at the gas outlet channel; and the exhaust gas discharging speed is increased.

The invention discloses a tunable semiconductor laser spectrum absorption method, and relates to the technical field of spectral analysis. The method comprises the following steps: step 1, constructing a multi-optical-path measurement gas chamber; 2, setting light source parameters; 3, gas concentration calculation; 4, correcting and outputting a result; by means of the gas chamber structure for multi-optical-path measurement, the optical path length is increased, the intensity of absorbed signals is improved, the spectrum quality and the signal-to-noise ratio are guaranteed through optimized mid-infrared light source and laser output light parameters, the stability and reliability of an optical path are guaranteed, and high-precision and high-efficiency detection of the gas concentration is achieved.

The present invention discloses an anesthetic gas mixing and anesthetic gas concentration detection device, and relates to the technical field of medical devices. The present invention comprises a device body, one side of the device body is connected to a concentration detection device body through a pipeline, a detection module for detecting the concentration of anesthetic gas is arranged inside the concentration detection device body, and a gas mixing device is arranged inside the device body, and the gas mixing device comprises an L-shaped trachea 1, an L-shaped trachea 2, a T-shaped tube, a rotating rod, and two through-hole cylinders. The present invention arranges the gas mixing device so that the two through-hole cylinders can rotate and spray anesthetic gas and air into the T-shaped tube, and the anesthetic gas and air are sprayed in a rotating manner, which can generate turbulence or airflow disturbance in the T-shaped tube, and this disturbance is conducive to the mixing between gases, so that the mixing of anesthetic gas and air is more uniform, which is conducive to the subsequent concentration detection device body to detect the concentration of anesthetic gas.

The invention discloses a jerusalem artichoke extraction device for diabetic medicinal material production, and relates to the technical field of mixing equipment.The jerusalem artichoke extraction device comprises a workbench, a support is fixedly installed on the top face of the workbench, a stirring barrel is fixedly installed on the top face of the support, and stirring blades are rotationally connected into the stirring barrel; a driving motor is fixedly mounted on one side of the stirring barrel on the top surface of the bracket; an output shaft of the driving motor is connected with the side wall of the stirring blade; and the feeding port is formed in the top face of the stirring barrel, a photoelectric sensor is fixedly installed on the inner wall of the feeding port, a cover plate is installed on the outer surface of the feeding port in a sliding mode, and a plurality of observation windows are formed in the outer surface of the stirring barrel. Not only is the production efficiency improved, but also the production cost is reduced.

The invention relates to a mineralization control system, method and device and mineralization equipment, the system comprises a control assembly, a flow assembly, a valve body assembly and a power assembly, and the control assembly is connected with the flow assembly, the valve body assembly and the power assembly; the control assembly is used for acquiring the water passing quantity parameters recorded by the flow assembly; determining target extraction time of the water body in the mineralization bin according to the water passing quantity parameter; and controlling the valve body assembly and the power assembly to execute the mineral water extraction step according to the target extraction time. By monitoring the water passing amount of the mineralization bin and adaptively adjusting the extraction time of the mineral water according to the water passing amount of the mineralization bin, the mineral water with stable concentration can be produced by the mineralization equipment under the condition that the mineralization equipment is used for a long time, and the use experience of the mineralization equipment is improved.

The invention discloses a system and a method for accelerating carbonization or mineralization of a cement base material through energization, the system utilizes a carbon dioxide pressure detector to reflect a carbon dioxide pressure value in real time, and the carbon dioxide concentration is supplemented and adjusted in time by controlling the opening and closing states of a valve, so that the stability of the required carbonate ion concentration during the operation of the device and the system is maintained; therefore, the CO2 concentration and pressure in the whole device can be controlled; according to the system, carbonate ions are directionally migrated by utilizing an electromigration method, quickly enter a cement-based test piece and chemically react with alkaline components such as calcium hydroxide and hydrated calcium silicate in the test piece to generate a compact substance, so that carbonization is accelerated. According to the system, carbonate ions are migrated into a test piece with a certain water content and can directly react with alkaline components such as calcium hydroxide and hydrated calcium silicate, no special requirements on various test conditions exist, and the whole operation process is simpler and more convenient.

The embodiment of the utility model provides an anaerobic biofilm reaction device, and relates to the technical field of wastewater treatment. The anaerobic biofilm reaction device comprises a reactor body, wherein a feeding pipe, a gas outlet pipe and a sludge discharge pipe are arranged on the reactor body; the solid-liquid separation mechanism is arranged outside or inside the reactor body, the solid-liquid separation mechanism is provided with an input end, a liquid phase output end and a solid phase output end, and the solid phase output end is communicated with the inside of the reactor body; and the driving mechanism is used for conveying the mixed liquid in the reactor body into the solid-liquid separation mechanism along the input end, so that the solid-liquid separation mechanism performs solid-liquid separation on the mixed liquid. The anaerobic biofilm reaction device adopts the solid-liquid separation mechanism to perform active solid-liquid separation on the mixed liquid, so that the wastewater treatment efficiency is improved.

The insect trap comprises a base, a high-voltage power grid, a tank body and a bottom box, a groove is formed in the middle of the base, the bottom box is located in the groove, a liquid storage space is reserved between the side wall of the bottom box and the side wall of the groove, the high-voltage power grid surrounds the periphery of the groove, the tank body is used for storing insect pheromone agents, and a partition plate is arranged in the tank body. A partition plate is arranged in the tank body and divides the tank body into an upper cavity and a lower cavity, a flexible air bag is arranged in the upper cavity, the lower cavity is filled with pheromone agents, the bottom of the lower cavity communicates with a first pipeline, the upper portion of the lower cavity communicates with a second pipeline, the air bag communicates with a third pipeline, and the lower ends of the first pipeline, the second pipeline and the third pipeline communicate with the interior of the bottom box. The lower end of the third pipeline is higher than the lower end of the second pipeline, the lower end of the second pipeline is higher than the lower end of the first pipeline, and the bottom box communicates with the groove through a fourth pipeline. The invention can effectively control the release and volatilization of the medicament, maintain the trapping effect for a long time, and prevent the medicament waste.

The present invention discloses a stirring device for producing degradable masterbatch, which relates to the technical field of producing degradable masterbatch, and comprises a stirring tank, a feeding hopper is arranged on one side of the top of the stirring tank, and a stirring and mixing component for stirring raw materials for producing the degradable masterbatch is arranged on the stirring tank. The stirring device for producing the degradable masterbatch realizes the up and down movement and reciprocating rotation of the stirring paddle in the stirring tank through a complex motion mechanism driven by a servo motor. This multi-dimensional motion mode effectively covers every corner in the stirring tank, reduces the dead angle of stirring, and ensures the comprehensive and uniform stirring of the raw materials, thereby significantly improving the stirring efficiency and mixing uniformity; the reciprocating rotation of the stirring paddle is combined with the up and down movement to produce a more complex fluid dynamic effect, which helps to break the interfacial tension between the raw materials, promote the dispersion and mixing of the raw materials, and further enhance the stirring effect.

The invention discloses a gas control system and method in a crystal growth furnace, in the gas control system in the crystal growth furnace, a second pipeline and a third pipeline are both communicated with the crystal growth furnace, inert gas is introduced into the crystal growth furnace through the second pipeline, nitrogen is introduced into the crystal growth furnace through the third pipeline, and the gas in the crystal growth furnace is controlled. Normal growth of the crystal in the crystal growth furnace is ensured; an output pump and a monitoring module are arranged on the first pipeline, the output pump is started to extract mixed gas in the crystal growth furnace through the first pipeline, and the proportion of nitrogen in the mixed gas is detected through the monitoring module; at least one of the second pipeline and the third pipeline is provided with a control valve, so that the opening degree of the corresponding control valve can be adjusted according to the nitrogen proportion detected by the monitoring module, the proportion of nitrogen in the crystal growing furnace is adjusted, and the concentration of the nitrogen in the crystal growing furnace is adjusted; therefore, the nitrogen concentration in the crystal growth furnace is stabilized in a specified range, and the resistivity uniformity and the qualified rate of crystals are improved.

This invention belongs to the field of water electrolysis for hydrogen production technology, and particularly relates to a water electrolysis device system and its usage method that separates alkali solutions at the hydrogen and oxygen ends. The system includes an electrolyzer body, a composite isolation unit, a hydrogen-side alkali solution circulation unit, an oxygen-side alkali solution circulation unit, a hydrogen-side deionized water supply device, an oxygen-side alkali solution supply device, an online monitoring unit, and a central control system. The composite isolation unit includes a hydrogen-side alkali solution chamber and an oxygen-side alkali solution chamber, with an intermediate composite isolation component between them. This component includes a strong alkali-resistant ceramic base frame, an ion-selective permeation membrane, and an elastic sealing edge. The ion-selective permeation membrane allows anions to pass through while blocking cations. Both the hydrogen-side and oxygen-side circulation units include a circulation pump module, a temperature-controlled heat exchange module, a monitoring module, and a gas-liquid separator. The temperature-controlled heat exchange module includes an electric heating unit and a plate heat exchange unit. The online monitoring unit and the central control system achieve closed-loop control and abnormal early warning by comparing target parameters with actual parameters.

The utility model relates to a wastewater denitrification and desulfurization treatment device which is characterized in that a water distributor is arranged at the lower part of an anaerobic reaction tank of an anaerobic reactor, a three-phase separator is arranged at the upper part of the anaerobic reaction tank of the anaerobic reactor, and a stirrer is arranged on an anoxic reaction tank of an anoxic reactor; an overflow port of the anaerobic reaction tank is connected and communicated with the anoxic reaction tank, a reflux port of the anaerobic reaction tank is connected and communicated with the anaerobic reaction tank through a wastewater reflux pipe, an aerator is arranged at the bottom of an aerobic reaction tank of the aerobic reactor, the anoxic reaction tank is connected and communicated with the aerobic reaction tank, a partition plate is arranged in the settling pond, a water inlet area is arranged on one side of the partition plate, and a settling area is arranged on the other side of the partition plate. A clear liquid outlet pipe is arranged at the upper part of the inclined plate of the sedimentation tank, a communicated clear liquid return pipe is arranged at the front part of the clear liquid valve of the clear liquid outlet pipe, and the clear liquid return pipe is communicated with the anoxic reaction tank. According to the device, the sulfate radical removal rate is high, nitrate in the wastewater can be simultaneously removed while sulfate radicals in the wastewater are removed, and the equipment investment and the treatment cost are reduced.

The utility model provides a detergent diluting container. The detergent diluting container comprises a mixing cavity and a flow guide part formed in the mixing cavity, the liquid spraying device is arranged on one side of the mixing cavity, the piston structure is arranged in the liquid spraying device, the driving device is arranged on the liquid spraying device and used for driving the piston structure, the detergent outlet pipe is connected with the piston structure, and the spraying head is arranged at one end of the detergent outlet pipe. The liquid container and the washing liquid container are arranged at the top of the mixing cavity, and the detergent inlet pipe is arranged at one end of the washing liquid container and communicated with the liquid spraying device. According to the utility model, the mixing efficiency is obviously improved, the non-uniform local concentration is avoided, meanwhile, through the synergistic effect of the flow guide part and the screen plate structure, the generation of precipitates and foams is reduced, the concentration of diluent is ensured to be stable, the device is suitable for various high / low viscosity detergents, the blocking risk is reduced, and the service life of equipment is prolonged.

The invention relates to the technical field of primary explosive production equipment, and particularly discloses a continuous chemical combination reactor which comprises a reactor body, the side wall of the reactor body is hollow, a mechanical stirring device is fixedly arranged on the upper end face of the reactor body, and one end of the mechanical stirring device extends into the reactor body; a raw material solution pipe and a water inlet pipe are arranged on one side of the mechanical stirring device; a sensor is arranged on one side of the stirring device, and one end of the sensor extends into the reactor; the side wall of the reactor is provided with a cold and hot water inlet and a cold and hot water return port which are circularly communicated with the interlayer of the reaction kettle; a gas pipe is arranged at the bottom of the reactor and inserted into the bottom of the reactor; a discharge hole is formed in the lower end of the reactor, the discharge hole is communicated with a plurality of suction filtration tanks arranged at the lower end of the discharge hole, and a valve is arranged between the discharge hole and each suction filtration tank; the invention aims to enable the concentration of materials and reaction conditions in the reaction process to be always kept stable in a continuous feeding and discharging mode, the generated initiating explosive particles are uniform in size, the yield is high, the production is simple, and the cost is reduced.

The utility model provides a device for mixing coal mine gas by utilizing a static mixer, which relates to the technical field of gas auxiliary mixing and comprises a static mixing pipe body, flanges are fixed on two end faces of the static mixing pipe body, round angle discs are fixed between the static mixing pipe body and the flanges, and a mixing cylinder is fixed inside the static mixing pipe body. An air outlet pipe is fixed on one side wall of the static mixing pipe body, an air inlet is formed between the static mixing pipe body and the mixing barrel, rotating sticks are fixed on the side end face of the air inlet and the top of the fillet disc, the top rotating stick is rotationally connected with a forward-rotating spiral blade, the bottom rotating stick is rotationally connected with a reverse-rotating spiral blade, and the forward-rotating spiral blade and the reverse-rotating spiral blade are oppositely arranged; by means of the flow guiding effect of the spiral blades, gas rotates while flowing, then air flow is scattered between the mixing barrel and the static mixing pipe body disorderly, flows upwards and is further mixed when reaching the air outlet pipe, and therefore the uniformity of the mixed gas is improved, and the mixed gas with the stable concentration is obtained.

This invention discloses an acidic oxidizing potential water generator and its preparation method for stable water quality control, belonging to the field of disinfection equipment technology. The device is designed with an inlet module, a brine preparation module, a mixing and control module, an electrolysis module, and a control system. Its core lies in employing a high-precision electric proportional control valve and a millisecond-level PID algorithm to achieve constant pressure and constant flow control of the inlet water flow. The brine preparation module uses a solid natural melting structure combined with closed-loop liquid level control, enabling long-term maintenance with a single salt addition lasting for six months. A built-in water quality prediction model based on electrolysis current (fma) is incorporated, using a specific algorithm formula to calculate pH, ORP, and available chlorine content in real time, achieving "soft measurement" and feedforward control of water quality. This solves the problems of high manual operation intensity and raw material concentration fluctuations, ensuring that the effluent water quality stably meets the high standard disinfection requirements of pH 2.5-2.6, ORP 1112-1115mV, and available chlorine 50-55mg / L.

The application discloses a sludge backflow sewage treatment system, which comprises a water collecting well, a pre-anoxic tank, a first-stage anoxic tank, a first-stage aerobic tank, a second-stage anoxic tank, a second-stage aerobic tank and a secondary sedimentation tank which are sequentially connected, and a first fine adjustment weir which comprises a first water inlet groove, a first water distribution groove and a first overflow backflow groove. The first water inlet groove is used for receiving backflow sludge from the secondary sedimentation tank, and after the concentration of the first water inlet groove and the first water distribution groove is homogenized, the backflow sludge is together fed into the pre-anoxic tank, so that the pollutants in the treatment system are treated with stable sludge concentration, the concentration stratification is eliminated, the concentration of the mixed liquid entering the pre-anoxic tank is stabilized, and through the setting of the first overflow backflow groove, the water inlet exceeding the treatment capacity can be backflowed into the water collecting well, so that the mixed liquid backflow ratio in the first water distribution groove can be conveniently adjusted.

This invention relates to the field of polymer synthesis technology. This invention provides a controlled polymerization method for a high-alternation-degree ETFE copolymer, comprising the following steps: (1) adding a solvent to a high-pressure reactor, replacing the air, and then filling it with an initial monomer mixture to a total pressure of 1.5-2.5 MPa, wherein the monomer mixture is a mixture of tetrafluoroethylene and ethylene; (2) heating to 60-85°C, adding an initiator to initiate the polymerization reaction; (3) simultaneously adding the monomer mixture continuously or semi-continuously during the polymerization reaction; (4) adding a chain transfer agent, and discharging the product after the reaction, i.e., the high-alternation-degree ETFE copolymer. This invention also provides a controlled polymerization method for a high-alternation-degree ETFE copolymer. This invention also provides an application of the high-alternation-degree ETFE copolymer in new energy, aerospace, high-end equipment manufacturing, and photovoltaic fields. The high-alternation-degree ETFE copolymer of this invention has high alternation degree (>92%), high thermal stability, and excellent mechanical properties.