90results about How to "Simple operation and control" patented technology

The present invention is efficient ecological waste water treating apparatus and method. The apparatus consists of grit contacting oxidizing area, vertical upstream flow artificial wet land area, aerating jet area and horizontal flow artificial wet land area connected serially. The present invention has the advantages of composite medium in new recipe resulting in excellent phosphate and organic matter eliminating effect, the grit contacting oxidizing resulting in the long term stable running of the system, the composite of vertical upstream flow artificial wet land and horizontal flow artificial wet land resulting in raised effective volume and the aerating jet creating condition for aerobic degrading of organic matter.

The invention discloses a method for treating odors produced by drying sewage sludge. The method comprises the following steps: (1) delivering odors exhausted by a sewage sludge drying system to a pretreatment tower through a fan to be rinsed with clean water, wherein the components soluble in water in the odors are absorbed by the clean water, and the odors are cooled at the same time; (2) rinsing the pretreated odors in a primary spraying tower, wherein the acid gases and volatile organic compound gases in the odors are subjected to chemical reaction with the spraying solution with strong oxidability and alkalinity in the primary spraying tower and are absorbed; (3) rinsing the remaining gases after treatment in the step (2) in a secondary spraying tower, wherein alkaline gases in the gases are subjected to neutralization reaction with the acid spraying solution in the secondary spraying tower and are absorbed; and (4) exhausting the tail gases after treatment in the step (3) through an exhaust pipe. After the odors produced by drying the sewage sludge are treated by the method disclosed by the invention, the obtained tail gases can reach the secondary emission standard in the Emission Standards for Odor Pollutants (GB14554-93).

The invention relates to a method for separating sodium fluoride crystals from silicon dioxide, in particular to a method for jointly producing sodium fluoride and sodium silicate by using sodium fluosilicate which is a by product of phosphate fertilizer production. The method of the invention comprises: a, stirring a sodium fluosilicate solid and 30 to 50 percent solution of sodium carbonate with a big force to perform a reaction to obtain solution containing sodium fluoride crystals and a silicon dioxide precipitate; b, adding sodium hydroxide into the solution obtained by the step a in a theoretical dose based on a molar ratio of Na2O to SiO2 of 30 to 50 percent to dissolve the silicon dioxide to form solution of sodium silicate and the sodium fluoride crystals, wherein the concentration of the solution of the sodium hydroxide is 45 to 50 percent; c, centrifugally filtering the solution obtained by the step b, washing solid sodium fluoride, and drying the sodium fluoride to obtain a finished product of the sodium fluoride, wherein washing liquor obtained after the solid sodium fluoride is washed is used for preparing the solution of sodium carbonate; d, concentrating liquid separated by the step c, separating the precipitated sodium fluoride, and returning the solid sodium fluoride separated out to the step a; and e, concentrating the liquid sodium silicate obtained by the step b to obtain liquid sodium silicate having a standard density and a standard modulus. The method has the advantages of simple operation and control, low investment and high yield.

The invention provides a double-glass enclosure system with cooling and shading functions and belongs to the technical field of energy conservation of buildings. The double-glass enclosure system is provided with an inner glass curtain wall and an outer glass curtain wall. An air cavity is formed between the inner glass curtain wall and the outer glass curtain wall. The double-glass enclosure system further comprises multiple cooling water pipes, a cold source, a water pump, a cooling water inlet and a cooling water outlet. The cooling water pipes are arranged in the air cavity in parallel. Each cooling water pipe is provided with a shading blade. The cooling water pipes are connected with the cold source through the cooling water inlet and the cooling water outlet. The water pump is arranged on a pipeline which is located between the cold source and the cooling water outlet or between the cold source and the cooling water inlet. The light transmittance can be flexibly adjusted through a shading blade adjusting mechanism. The cooling water pipes are horizontally or vertically arranged and connected in series or in parallel. By the adoption of the double-glass enclosure system with the cooling and shading functions, heat being conducted to a house through the double-glass enclosure system can be directly eliminated through high-temperature cooling water, and therefore the cooling load of an air conditioner is greatly reduced; the double-glass enclosure system with the cooling and shading functions is simple, easy to use and suitable for popularization.

The invention provides a reaction cup loading system for automatically conveying reaction cups to an analysis device. The reaction cup loading system comprises a rack, as well as a cup storage cabin, a cup fetching mechanism and a cup conveying mechanism which are fixedly arranged on the rack and are arranged in sequence along a conveying direction of the reaction cups, wherein a cup outlet is formed in the bottom of the cup storage cabin; the cup fetching mechanism comprises a guide pipe, a driver for driving the guide pope to hoist to enable the guide pipe to stretch into the cup storage cabin from the cup outlet to take the cups, and a first mechanical switch for controlling the reaction cups in the guide pipe to fall off one by one from a first outlet; the cup conveying mechanism comprises a slide groove and a second mechanical switch for controlling the reaction cups in the slide groove to slide out one by one from a second outlet; the reaction cup loading system further comprises a cup detection mechanism arranged on the cup fetching mechanism and / or the cup conveying mechanism. A reaction cup automatic conveying device provides guarantees to full-automatic operation of a biological sample analysis system, has a compact whole structure, is simple to operate and control, has low operation fault rate and is accurate and reliable to convey; the device can be continuously operated for a long time with the matching of the detection mechanism, so that the conveying efficiency is improved and the operation cost is reduced.

The invention discloses an apparatus and a method for treating city sewage by coupling inner carbon source denitrification and anaerobic ammonium oxidation. Two SBR reactors are arranged on the apparatus, wherein a SBR phosphate removing reactor is used for removing an organic matter in sewage and synthesizing the inner carbon source, a SBR nitrogen removal reactor uses a short distance denitrification-anaerobic ammoxidation technology to remove most ammonia nitrogen in sewage, by adding residual sludge in the SBR phosphate removing reactor, total nitrogen removal rate of a system can be increased. The apparatus operation method comprises the following steps: 1)inoculating sludge; 2)starting the SBR phosphate removing reactor; 3)starting the SBR nitrogen removal reactor; and 4)operating the system in a stable mode. The apparatus and method are suitable for treating city sewage with low carbon nitrogen ratio; the system can be controlled in a flexible mode, and total nitrogen removal efficiency is high.

The invention belongs to the technical field of gas purification equipment and mainly relates to circulation oxygen generation equipment which comprises an air compressor, a filter, a degreaser, a dryer, a molecular sieve adsorption tower, a membrane separator and an oxygen storage tank which are sequentially connected, wherein the molecular sieve adsorption tower comprises a tower body; an air inlet tube is mounted at the bottom end of the tower body; an air exhaust tube is mounted at the top end of the tower body; a guide rack is mounted inside the tower body; a first molecular sieve filterand a second molecular sieve filter are mounted on the guide rack; plugs are mounted at a first pressure release tube and a second pressure release tube on the guide rack; a stepper motor is in transmission connection with the guide rack and the top of the tower body; a backwash cavity is formed in the guide rack; one end of the backwash cavity is communicated with the air exhaust tube; the otherend of the backwash cavity is communicated with the first molecular sieve filter and the second molecular sieve filter respectively. The circulation oxygen generation equipment is simple in structure,the two molecular sieve filters are capable of regenerating air alternatively, oxygen can be generated continuously, and meanwhile a small floor space is needed.

The invention provides a welding device used for welding a pressure container vertical type circular seam and a welding method thereof. The device comprises a base, a first switch is arranged on the edge of the upper surface of the base, the input en of the first switch is connected with the output end of an outer power source, a sliding base is arranged in a middle sliding groove of the base, and the welding device used for welding the pressure container vertical circular seam is simple in structure; due to vertical type annular seam welding, large devices like a pressure container can be conveniently welded, stability is improved, the sliding base can move, lifting containing of the pressure container can be facilitated, in cooperation with a fixing cover, the pressure container is limited, stability of welding work is ensured, meanwhile, welding precision is improved, the manner of circumferential motion of a welding gun is adopted for welding, running control is simple, the rotating manner of an existing pressure container is abandoned, deviating of a large-size pressure container during rotating is avoided, welding uniformity is ensured, the subsequent repair rate is reduced, and production quality and production efficiency are improved.

The invention discloses a device for strengthening anaerobic ammonia oxidation and nitrogen removal process. The device comprises a raw-water storage tank, a feed pump, a biochemical reactor and a continuous flow reactor of a sediment tank; the continuous flow reactor is connected with a PLC (programmable logic controller); the biochemical reactor contains an anaerobic zone, an aerobic zone and an anoxic zone; the urban raw-material storage tank is communicated with a water inlet pipe of the biochemical reactor through the feed pump, and sewage is sequentially connected with the anaerobic zone, the aerobic zone, the anoxic zone and the sediment tank through the water inlet pipe; the sediment tank is subjected to sludge and water separation, and a supernatant is discharged as yielding water; in the anaerobic zone, activated sludge absorbs an organic matter synthesized internal carbon source degraded into the water; in the aerobic zone, coupling of short-cut nitrogen removal and anaerobic ammonium oxidation is realized by controlling dissolved oxygen, and nitrogen removal rate of the system is increased.

The present invention relates to the technical field of control of fume exhaust parts in household kitchen, and especially relates to a range hood intelligent control system. The system includes a one-key type touch control device, a main control module, a rotating speed control module, a PWM control module and a time setting module. The main control module is in signal connection with the one-key type touch control device, and is used for receiving operation command from the one-key type touch control device; the main control module is in control connection with the rotating speed control module, the PWM control module and the time setting module; and the rotating speed control module and the PWM control module are respectively electrically connected to a DC motor and a lighting lamp. The one-key type touch control device is provided with a switch button, a time setting button, a illumination brightness touch button, a touch sliding control strip and a display screen. Compared with the prior art, the invention has the advantages of simple structure, convenient operation, various control functions and good appearance. The invention also provides a one-key type range hood with the intelligent control system.

The invention discloses a device and a method for realizing deep denitrification of domestic sewage by a main-flow internal-source short-range denitrification / anaerobic ammoxidation technology. The device comprises a municipal sewage raw water tank, an internal-source short-range denitrification reactor, an intermediate water tank I, a nitrification reactor, an intermediate water tank II and an anaerobic ammoxidation reactor. The method comprises the steps that municipal sewage enters the internal-source short-range denitrification reactor; a microorganism absorbs an organic matter in raw water to be converted into PHAs (polyhydroxyalkanoates); the sewage enters the nitrification reactor for full-range nitrification; the nitrified sewage enters the internal-source short-range denitrification reactor again to realize conversion from nitrate nitrogen to nitrite nitrogen; and then the sewage enters the anaerobic ammoxidation reactor to realize autotrophic deep denitrification. The method can stably realize main-flow anaerobic ammoxidation of the municipal sewage with a low C / N ratio; no external carbon source is required; the aeration amount is saved; the sludge yield is low; operation control is simple; and high-efficiency and low-energy municipal sewage treatment is realized.

Disclosed is a mechanism for mechanical steering control of a steering gear. A reversing gear bracket (18) is fixedly connected on a base (20), and a gear reversing system composed of a reversing gear wheel (14), a reversing gear shaft (15), a reversing pinion (16) and a reversing pinion (17) is mounted on the reversing gear bracket (18); a tooth coupling (13) is nested in an unthreaded hole of a sun gear bracket (12) and connected with a sun gear (10); the sun gear (10) forms a sun gear train with a turntable bearing ring gear (11) through three planet gears (37); two worm shafts (2), a clutch magnet (6), a worm reversing gear wheel (33), a worm reversing gear shaft (34), a worm reversing pinion (35), a worm reversing pinion (36) and a thrust bearing (9) are mounted on a rotary support (3); a clutch gear (8), the clutch magnet (6) and a clutch gear (4) sleeve a spindle (30).

The invention provides a molten salt electrode boiler heat storage and power generation system, and belongs to the field of energy storage. The system involves a heating part, a high-temperature molten salt storage tank and a heat utilization part; the heating part comprises a boiler body, a high-voltage electrode, a neutral electrode and a low-temperature molten salt supply head, wherein the high-voltage electrode, the neutral electrode and the low-temperature molten salt supply head are arranged in the boiler body, the high-voltage electrode is used for being connected with a power generation system, and the low-temperature molten salt supply head is used for filling the boiler body with low-temperature molten salt; one end of the high-temperature molten salt storage tank is connected with the bottom of the boiler body, and the other end of the high-temperature molten salt storage tank is connected with the heat utilization part; and the heat utilization part is used for carrying outheat exchange on the molten salt sent out by the high-temperature molten salt storage tank and a water working medium for pushing the steam turbine to act, and sending the cooled molten salt back tothe boiler body. Wind power photovoltaic curtailed electricity is used for heating the molten salt and storing heat in the off-peak period of electricity utilization, and high-temperature molten saltis used for heating feed water to generate high-temperature and high-pressure steam in the peak period of electricity utilization, so that the steam turbine is pushed to act, he stored heat is converted into electric energy to be output, and the curtailed wind and light can be effectively consumed to realize large-scale storage and scheduling of non-water renewable energy power.

The invention belongs to the technical field of water treatment and relates to a purifying treatment method for industrial sewage, in particular to a method and a device for ultraviolet-Fenton reagent-biological joint treatment. The industrial sewage is subject to flocculent settling pre-treatment and then flows into a photocatalytic oxidation pool for photocatalytic reaction so as to further reduce the COD of the sewage and improve the biodegradability thereof. Compared with the prior art, the purifying treatment method overcomes the shortcomings that the conventional biofiltration technology has low treatment efficiency, large occupation area and the like when treating the difficult degradable organic waste water. Meanwhile, the joint process further effectively reduces the defects of incomplete decomposition and production of toxic product caused by the ultraviolet oxidation technology, reduces the potential risk to the environment and the human health and further improves the economical efficiency of sewage treatment.

The invention discloses an organic working medium absorption type power generation method and system driven by a low-temperature heat source. The organic working medium absorption type power generation method driven by the low-temperature heat source comprises the following steps that (1) organic working media are heated into a saturated solution, the saturated solution is led into a first vortex tube, and a gas-liquid two-phase mixture is generated after the first vortex tube expands for depressurization; (2) first superheated steam flowing out of the first vortex tube and first saturated steam are mixed and enter a first expansion machine to expand for acting; and (3) a second solution flowing out of a second vortex tube flows through a regenerative evaporator to release heat under the gravity effect and then enters an absorber, and the first expansion machine and a second expansion machine act to drive a power generator connected with the first expansion machine and the second expansion machine to operate to generate power through couplings. According to the organic working medium absorption type power generation method and system driven by the low-temperature heat source, two-stage separation is conducted on the high-pressure saturated concentrated solution, and generated refrigerant steam is used for expansion acting for power generation; and meanwhile, the pressure in the absorption process of the system is regulated through a circulating pump, and the heat load of a condenser is reduced, so that the heat efficiency of the power generation system is improved, and high technical economical efficiency is achieved.

The invention discloses a device and a method for advanced treatment of sludge anaerobic digestion liquid and municipal sewage by a shortcut nitrification combined multi-stage influent denitrificationammonia oxidation process, belonging to the field of sewage biological treatment. The device adopts a sequencing batch reactor (SBR) and an upflow anaerobic sludge bed (UASB) reactor to operate jointly. The sequencing batch SBR is used to carry out short-cut nitrification of the sludge anaerobic digestion liquid. Effluent enters the UASB reactor from the bottom. The reactor is divided into an anaerobic ammonia oxidation zone, an intermediate mixing zone and a short-cut denitrification coupled anaerobic ammonia oxidation zone from bottom to top. The municipal sewage enters the UASB reactor from a middle water inlet, and the short-range denitrification reaction uses an organic carbon source in the municipal sewage to reduce nitrate generated in the anaerobic ammonia oxidation process to nitrite, and the nitrite and ammonia nitrogen in the municipal sewage are removed through the anaerobic ammonia oxidation, thus realizing synchronous and efficient treatment of the sludge anaerobic digestion liquid and the municipal sewage. The method has the advantages of high denitrification efficiency, saving aeration energy consumption and reducing organic carbon source consumption.

The invention discloses a composite fish-way system for a narrow river valley topography dam, belongs to the technical field of design and construction of ancillary buildings for water conservancy andhydropower engineering, and provides the composite fish-way system which is compact in structure, occupies small space and can open a water supply channel at any time according to the change of the upstream water level. The composite fish-way system comprises cutting devices, migration transition channels, a high concrete dam with multiple fish-way outlets formed in an upstream-side dam body as well as multiple water culverts in the number equivalent to that of the fish-way outlets; the fish-way outlets are formed in the high concrete dam at intervals in the vertical direction; the parts, after passing through the high concrete dam, of the water culverts are connected with the various fish-way outlets correspondingly; downstream-side end openings of the water culverts communicate with corresponding parts of the migration transition channels with the axial central lines perpendicular to the water flow direction; the water culverts located in the positions more than 1.5 m deep below theupstream-side water surface are blocked by the cutting devices; and the composite fish-way structure communicates with the downstream-side water body through the migration transition channels.

The invention relates to the energy power technology and discloses a heat supplying system of heat-conducting oil in combined heat and power generation of gas-steam combined cycle and a heat supplying method. The heat supplying system comprises a gas turbine system, a steam turbine system and a heat-conducting oil heat supplying system, wherein the gas turbine system comprises a gas turbine; the steam turbine system comprises a steam turbine; the heat-conducting oil heat supplying system comprises a waste-heat boiler; the waste-heat boiler is internally provided with a heat-conducting oil heated surface module convenient for the waste-heat boiler to heat heat-conducting oil directly and supply heated high-temperature heat-conducting oil to a heat user; the heat supplying system also comprises a heat-conducting oil evaporator which can take away water for heat exceeding the need of the heat user as a working medium, so that the temperature control for the heat-conducting oil in the waste-heat boiler is realized.

The invention discloses a biological rotating disc process operation method for disposing waste water in villages and towns. The operation method comprises a phased launch biofilm-culturing stage, a normal operation stage, an alternate intermittent operation stage and an operation suspension stage. Biological rotating discs which are in parallel connection are subjected to the alternate operation of the four stages in batches according to water inflow and water inlet load, the cultured biofilm thickness and homogeneity of the biological rotating discs are adjusted in a periodical mode, and the biofilm updating efficiency is improved. According to the operation method, the alternate operation of the biological rotating discs and water inlet load control can be utilized, and under the condition of satisfying water outlet of the biological rotating discs, it can be guaranteed that the biological rotating discs run durably and stably.

The invention discloses a composite fishway structure for a narrow river valley terrain dam, and belongs to the technical field of water conservancy and hydropower engineering accessory building design and construction. The composite fishway structure for the narrow river valley terrain dam compact in structure and small in occupied space is provided. The composite fishway structure comprises a concrete high dam provided with multiple fishway outlets in an upstream side dam body and further comprises a migration and transition channel and multiple sets of water passing culverts; all the fishway outlets are formed in the concrete high dam in the vertical direction at intervals; all sets of water passing culverts are connected with all the fishway outlets in a one to one corresponding mode respectively after passing through the concrete high dam in the water flowing direction, the downstream side ports of all the sets of water passing culverts are communicated with the corresponding partof the migration and transition channel of which the central line is perpendicular to the water flowing direction separately, and the composite fishway structure is communicated with a water body atthe downstream side through the migration and transition channel.

The invention discloses a method for producing dodecanoic lactam. The method comprises the following steps: carrying out an oximation reaction in the presence of a solvent a by taking cyclododecanoneand Raschig liquid as raw materials; performing pressure distillation on an oil phase obtained by liquid separation to remove and recover the solvent, dissolving the obtained cyclododecone oxime in amolten state with a solvent b, carrying out a Beckmann rearrangement reaction under catalysis of a rare-earth metal modified magnetic solid super-acid catalyst c, and refining, thereby obtaining the product dodecanoic lactam.

The invention belongs to the technical field of low C / N ratio high nitrogen wastewater (C / N is less than 4) treatment, and particularly relates to a sludge fermentation enhanced short-cut denitrification-anaerobic ammonia oxidation nitrogen removal and phosphorus recovery device and method, which comprises an anaerobic fermentation reactor, a short-cut denitrification reactor, a nitration reactor and an anaerobic ammonia oxidation reactor, the method comprises the following steps: firstly fermenting excess sludge in a sludge fermentation system to produce acid, carrying out mud-water separation, then mixing the excess sludge with high-nitrogen wastewater in a mixing pipe, adding an agent II to form blue iron ore, carrying out mud-water separation in a sedimentation tank to recover phosphorus resources, firstly feeding supernate into an exogenous short-cut denitrification reactor, carrying out short-cut denitrification NO2-N accumulation by microorganisms by utilizing an external carbon source, and carrying out secondary denitrification by utilizing a secondary carbon source to obtain the high-nitrogen wastewater. Meanwhile, the sewage enters the nitration reactor through a filter for nitration reaction, nitration wastewater containing part of ammonia nitrogen flows back to the short-cut denitrification reactor for NO2-N accumulation, and the sewage enters the anaerobic ammonia oxidation reactor to realize autotrophic deep nitrogen removal.

The present invention provides a hybrid stepping motor comprising a stator and a rotor. The stator comprises a chassis, a stator iron core, an armature winding, a permanent magnet and an end cover, and the rotor mainly comprises a rotor iron core and a rotating shaft. The permanent magnet is arranged at a notch at the periphery of the stator iron core, an outer circle of the permanent magnet is located at the outer circle of the stator iron core, and an inner circle is located at the groove bottom of the stator iron core. By the circumferential magnetizing, a main magnetic field in the motor is generated, and the number of the magnetic poles decides the pole number of the motor. The armature winding is arranged on the tooth poles of the stator, the windings on the radial relative tooth poles are connected in series or parallel as one phase, and the currents in the windings adopt the unipolar control. The rotor does not have the winding and the permanent magnet, the surfaces of the stator iron core and the rotor iron core facing an air gap are equipped with the small teeth of which the tooth separation distances are same. The hybrid stepping motor of the present invention enables the processing and assembly technologies of the motor and the permanent magnet to be simplified and the cost to be reduced, is reliable to operate and convenient to maintain, is high in precision and large in power density and torque density, and facilitates the development of the industries, such as the precise machine tool processing, the office automation, etc.

The invention provides an indoor sunshading and cooling device with internal cooling water pipes and belongs to the field of building energy-saving technology. The device comprises sunshading louvers and further comprises the cooling water pipes, a cold source, a water pump, a cooling water inlet and a cooling water outlet. The cooling water pipes are distributed on the indoor side of a glass envelop structure in parallel, the sunshading louvers are arranged on the cooling water pipes, and the cooling water pipes are connected with the cold source through the cooling water inlet and the cooling water outlet. The water pump is arranged between a pipeline between the cold source and the cooling water outlet or a pipeline between the cold source and the cooling water inlet. The glass envelop structure is a window or a curtain wall or a ceiling. The light transmittance can be flexibly adjusted through a sunshading louver adjusting mechanism. The cooling water pipes are distributed horizontally or vertically, and the cooling water pipes are connected in series or in parallel. The indoor sunshading and cooling device can keep out solar radiation, heat nearby the indoor sunshading device can be directly removed through high-temperature cooling water, and therefore loads of an air conditioner are substantially reduced in summer, and the indoor sunshading and cooling device is simple in structure and easy to popularize.

The invention discloses a rapid starting method of an efficient autotrophic nitrogen removal system used for treating high-ammonia nitrogen wastewater, and belongs to the technical field of wastewaterbiological nitrogen removal. The problems are solved that in the prior art, a related system needs to occupy a large land, the inoculation amount is too large, starting time is long, the nitrogen removal load is low, impact resistance is poor, and the system is easily affected by water-entering organic matter. Pure film denitrificaiton is combined with mud film one-part form autotrophic nitrogenremoval, a denitrification pond is arranged in the front, an autotrophic nitrogen removal pond is arranged in the rear, and outgoing water returns. Three operation modes of the rapid starting method can be realized and include the parallel operation mode, the double-series A operation mode and the double-series B operation mode, the water outlet direction of four reaction ponds is controlled through a communication valve, and therefore the reaction ponds are connected in series or in parallel or operate independently; by means of inoculation, fed-batch and others, rapid starting of the technology is realized; according to treatment requirements, different technological arrangement modes are realized. The rapid starting method has the advantages that occupied land is small, the inoculationproportion is small, starting is rapid, the nitrogen removal load is high, the impact resistance is high, and resistance to water-entering organic matter is good.

The invention discloses a synchronous carbon and nitrogen removing reactor which is suitable for the treatment of waste water with high ammonia nitrogen and low carbon and nitrogen ratio, in particular for the treatment of kitchen waste water, an anaerobic digestion solution and the like which are similar to the waste water with high ammonia nitrogen and low carbon and nitrogen ratio. The synchronous carbon and nitrogen removing reactor mainly comprises a cylindrical inner cylinder body and a cylindrical outer cylinder body which are coaxial, wherein an aeration device, a jet device, filler, an effluent weir and the like are arranged in the cylinder bodies; biological filter as a carrier is distributed in the inner cylinder; flow-separated ball filler as a carrier is put into the outer cylinder; after the anaerobic digestion solution with the high ammonia nitrogen is treated by the reactor, the removal rate of the ammonia and the nitrogen can reach 75 to 90 percent, and the removal rate of CODCr (Chemical Oxygen Demand) can reach 55 to 65 percent.

The invention relates to a steam turbine pump control cylinder servo system and control method. The steam turbine pump control cylinder servo system comprises an oil cylinder, a servo driver, a servomotor and a hydraulic oil pump, and further comprises an oil supplementing tank, a displacement sensor and a position controller; the displacement sensor, the position controller, the servo driver andthe servo motor are electrically connected; the position controller is electrically connected to a steam turbine control system, and the oil supplementing tank is connected to an input port of the hydraulic oil pump through an oil suction filter, a one-way valve and an oil inlet pipeline in sequence; and the hydraulic oil pump is connected to the oil cylinder through a hydraulic control one-way valve and an overflow valve in sequence, a reset spring used for pushing a piston arranged in the oil cylinder is further arranged in the oil cylinder, the piston is connected to a steam turbine adjusting valve, and the oil cylinder is connected to the oil supplementing tank through an unloading electromagnetic valve. According to the steam turbine pump control cylinder servo system, pressure oil is output in two directions through the two-way hydraulic oil pump to control the oil cylinder, meanwhile, opening and closing of the steam turbine adjusting valve are controlled, and the oil cylindercan be directly closed by controlling the unloading electromagnetic valve through a quick-closing instruction.

The invention discloses a take-up tension control mechanism for a wire drawing machine. The take-up tension control mechanism comprises a support, a wire roller and an oscillating bar positioned on the back of the support, wherein the wire roller is arranged at the upper end of the oscillating bar; an eccentric wheel is arranged on the oscillating bar; a rotating shaft is arranged on the back of the support; the eccentric wheel is inserted in the rotating shaft in an eccentric way; and a distance sensor is arranged on the back of the support and is positioned on one side of the eccentric wheel. The take-up tension control mechanism for the wire drawing machine is simple in structure and easy to control and operate, and hardly has faults.

Provided is a method for obtaining high-purity chlorosilanes from chlorosilanes that contain boron impurities or phosphorus impurities. On the basis of the finding that generation of solid byproducts when purifying chlorosilanes by adding aromatic aldehyde results from a reaction catalyzed by iron ions or rust-like iron, the disclosed method adds to the chlorosilanes a Lewis base that has a masking effect. Examples given for the Lewis base include divalent sulfur-containing compounds and alkoxysilanes. In the case of the former, R-S-R' is preferable (R representing a hydrocarbon group containing a C1-20 aliphatic or aromatic backbone; R' representing either a hydrocarbon group containing a C1-20 aliphatic or aromatic backbone, or a carbonyl group substituted with a hydrocarbon group containing a C1-20 aliphatic or aromatic backbone; and the total carbon number of R and R' being at least 7), and in the case of the latter, RxSi(OR')4-x is preferable (R and R' representing C1-20 alkyl groups and x being 0, 1, 2, or 3).