138results about How to "Avoid residual" patented technology

Disclosed are a washing machine with an automatically-added additive and a method. The washing machine comprises an apparatus for automatically adding an additive and an additive accommodating box for accommodating a liquid additive, the additive accommodating box is of a structure of an independently sealed ink box, a washing machine casing is provided with at least one opening, and the additive accommodating box is disposed in the opening in a push-and-pull manner in a one-to-one correspondence, and is / is not in communication with the apparatus for automatically adding an additive. By means of the foregoing washing machine, the additive neither easily deteriorates nor easily condenses after being placed in the additive accommodating box for a long time, thereby improving additive adding convenience, and reducing the number of times a user adds the additive; avoiding that the additive cannot drive blades of a metering apparatus to rotate to perform metering on the additive because the additive is excessively sticky, and meanwhile also avoiding that the metering apparatus is blocked because the additive is coagulated; and avoiding an undesired washing effect caused because different types of additives are mixed up.

The invention provides a manufacturing method of a TFT (Thin Film Transistor) substrate structure. According to the manufacturing method of the TFT substrate structure, via holes and a groove are formed in a planarization layer through single exposure by utilizing a halftone photomask, and half-exposure is realized through half-light-transmitting patterns on the halftone photomask; the groove with smaller depth is formed in the planarization layer of a fan-out area, so that the slope of the groove in the planarization layer of the fan-out area is decreased, the phenomenon of residue of a transparent conductive layer at corners of the groove caused by non-thorough photoresist exposure at the corners of the groove during photoresist exposure developing is avoided, and the phenomenon of short circuit between metal lines of the fan-out area is further avoided; meanwhile, the aperture ratio of an effective display area is not influenced, and the display quality of a liquid crystal display panel is greatly improved; moreover, by widening the groove in the planarization layer of the fan-out area, the phenomenon of reduction of an adhesion force of a frame sealing adhesive caused by decrease of the slope of the groove and reduction of the depth of the groove is avoided, and the adhesion property of the frame sealing adhesive in the liquid crystal display panel is further protected from being influenced.

The invention relates to a double-liquid capillary micro-flow control valve in a micro-flow control chip, and a manufacturing method thereof, in particular to a capillary micro-flow control mechanism which is used for the micro-flow control chip and can realize sample injection of two liquids at the same time, aiming at solving the technical problem that the sample injection of the two trace liquids with different medium affinity properties can be difficultly realized in the existing micro-flow control technology. The double-liquid capillary micro-flow control valve is provided with a first branch flow groove, a second branch flow groove and an output groove which have equal cross section width; the cross section width of an air duct groove is less than that of the first branch flow groove, the second branch flow groove and the output groove; the depth of the second branch flow groove is equal to that of the output groove, and the depth of the first branch flow groove is less than that of the second branch flow groove; the depths of the second branch flow groove and the output groove are less than that of the air duct groove; the ends of the first branch flow groove and the second branch flow groove are communicated with an input end of the output groove; and the end of the air duct groove is communicated in front of the end of the second branch flow groove. The invention is applicable to the structure of a device which can lead the sample injection of high-affinity liquid to be carried out at the same time.

The invention provides a preparation method for a multilayered graphene film, which includes the following steps: (S1) a polymer supporting layer is formed on a graphene film growing on the surface of a metal layer; (S2) the metal layer is dissolved, and the polymer supporting layer / graphene film is doped; (S3) another graphene film growing on the surface of a metal layer is covered by the polymer supporting layer / graphene film; (S4) metal layer dissolution and doping are carried out again; (S5) a target substrate is covered by the polymer supporting layer / graphene film, and the polymer supporting layer is removed. By flexibly controlling the frequency of repeating the steps S3 and S4, the graphene film with a needed layer number which is located on the target substrate can be obtained. By repetitively utilizing the polymer supporting layer formed in one step in the process of transfer, the preparation method prevents polymer from remaining among the layers of graphene; moreover, since chemical doping is carried out in the layer-by-layer transfer process, doped ions are located among the layers of graphene, and cannot easily separate from the graphene film, and thereby the doping effect is prolonged.

The invention discloses a resource distributing method based on combined multi-point processing (CoMP); and the method comprises the steps as follows: each cell is used for dividing resources of frequencies according to the number of cooperation sets and dynamically adjusting division proportions of the resources on the basis of frequency according to resource proportions required by edge users of each cooperation set; a service cell and a cooperation cell of each cooperation set are used for interacting division proportions of the respective resources and determining the proportion of cooperation resources; and according to the proportion of the cooperation resources, the edge users and central users are dispatched to distribute resources; the invention further discloses a resource distributing device based on the CoMP and a base station; and through the adoption of the scheme disclosed by the invention, a resource distribution conflict problem can be solved and residues of the resources can be avoided.

The invention discloses cleaning equipment for a solar cell panel. The cleaning equipment comprises a vehicle body capable of moving along the surface of the solar cell panel, the bottom surface of the vehicle body is provided with a groove, an installation space for installing a cleaning assembly is preset in the groove, the upper side and the lower side of the interior of the groove are providedwith an upper pulley and a lower pulley, after the solar cell panel is arranged in the groove, the upper side edge and the lower side edge of the solar cell panel form operation rails of the upper pulley and the lower pulley, a driver in the vehicle body drives the upper pulley and the lower pulley so that the vehicle body can be moved, and the top surface of the vehicle body is spread with a photovoltaic plate to provide power for the driver; and the cleaning assembly comprises a sand suction device, a brushing device and a driving device which are arranged in sequence, and the cleaning assembly right faces towards the solar cell panel. According to the cleaning equipment, aiming at the types of dirt on the solar cell panel, the sand suction device is arranged, sand on the surface of thesolar cell panel is removed at first, bird droppings adhering to the surface of the solar cell panel are brushed through the brushing device, water on the surface of the solar cell panel is dried through the drying device, and residual water is avoided.

The invention relates to a radiofrequency ablation catheter for distribution of heat exchange mediums, a lung radiofrequency ablation system, a control method and a control device. The radiofrequencyablation catheter comprises an electrode, wherein the electrode is provided with a heat exchange medium flow passage; the heat exchange medium flow passage is a cavity which is positioned in the electrode; the heat exchange medium flows out of an opening hole which is formed in the wall of the cavity; a balance device is arranged on the electrode; a wetting hole is formed in the balance device, and is communicated with the heat exchange medium flow passage; the heat exchange medium which is outputted by the heat exchange medium flow passage is distributed by the balance device, and flows out.The radiofrequency ablation catheter has the advantages that the normal saline is filled into the ablation tissues by the electrode, so that the electric conductivity and heat conductivity of the ablation tissues are improved; the balance of impedance is maintained, the impedance is maintained under the relative stable state, and the radiofrequency energy can be continuously outputted.

The invention relates to a plastic metalizing method and aims to provide a plastic metalizing method which reduces the use and residues of heavy metal ions, reduces pollution, saves resources and is easy to operate. The method comprises the following steps of: A) roughening a plastic matrix in an H2O2 and H2SO4 solution; B) performing ultrasonic wave washing and blow-drying of the roughened plastic, and activating in a metal nano-particle solution; and C) plating the activated plastic in copper plating liquid. The method provided by the invention has the beneficial effects that: firstly the traditional pretreatment technology of plastic chemical cooper plating is improved by use of the catalysis of the metal nano particles, and the three-step method of roughening, sensitization and activation is changed into a two-step method of roughening and activation, thus the operation is easy; and the use and residues of heavy metal ions are avoided, the pollution is reduced, and the resources are saved.

The invention discloses a method for cleaning a semiconductor silicon wafer. The method comprises the following steps: providing the semiconductor silicon wafer, wherein an antireflecting layer and a graphical photoresist layer are formed on the semiconductor silicon wafer in sequence; and using supercritical fluid to which a cosolvent is added to dissolve the antireflecting layer so as to separate the graphical photoresist layer from the semiconductor silicon wafer. The method has the following beneficial effects: photoresist layer residues possibly caused by directly using a cleaning solvent to dissolve the photoresist layer are avoided, and adjustment of the components of the cleaning solvent according to different photoresist and processes is simultaneously avoided, thus greatly simplifying the cleaning process steps. In addition, the cleaning effect can be obviously improved by ensuring the photoresist layer to break away from the semiconductor silicon wafer by dissolving the antireflecting layer.

The invention belongs to the technical field of cement production, and particularly relates to a stirring tank for cement wet production. The stirring tank comprises an outer tank body and an inner tank body; a reciprocating motor is mounted on a top plate of the outer tank body and is connected with a telescopic shaft; a square column is mounted at the bottom of the telescopic shaft, and a rotating shaft is mounted at the bottom of the square column; an upper baffle ring and a lower baffle ring are mounted on the inner side wall of the outer tank body; a limiting ring is mounted on the outerside wall of the inner tank body; and a stirring mechanism and a conveying mechanism are mounted on the square column, and a scraping mechanism is mounted on the rotating shaft. The stirring uniformity can be improved when slurry is stirred and homogenized, and the slurry is prevented from being attached to the inner side wall of the inner tank body in the discharging process.

The invention discloses a cutting device. The cutting device comprises a supporting body (8) which is fixedly provided with a housing (9). A cutting tool rod (7) is slidably mounted on the supporting body (8). The cutting tool rod (7) comprises a cutting tool bit (72), a notch (71), a right-side protruding portion (76), a left-side protruding portion (75) and a jointing end (77), wherein the cutting tool bit (72) is located at the left end of the cutting tool rod (7) and used for executing cutting; the notch (71) is formed in the upper side face of the cutting tool rod (7); the right-side protruding portion (76) and the left-side protruding portion (75) are located on the lower side face of the cutting tool rod (7); and the jointing end (77) is located at the right end of the cutting tool rod (7) and used for being jointed with the housing (9). The jointing end (77) is further jointed with an elastic bracing-and-pressing part (770), so that the jointing end (77) of the cutting tool rod (7) can lean on the housing (9) in an asymmetrically-pressing manner. A wedge-shaped plate (73) is arranged in the supporting body (8) in the manner of corresponding to the notch (71), wherein the wedge-shaped plate (73) can slide up and down and is braced and pressed towards the cutting tool rod (7) by an elastic bracing-and-pressing spring (74).

The invention discloses a copper ion antibacterial hydrogel as well as a preparation method and application thereof. The preparation method comprises the following steps: firstly, grafting small molecules containing two hydrazide groups onto water-soluble macromolecules containing carboxyl by utilizing a carbodiimide method, and then uniformly mixing the obtained product with a copper salt solution, so as to obtain the copper ion antibacterial hydrogel. The preparation method has the advantages that the preparation method is simple and efficient, the process conditions are mild, the copper ions are both a cross-linking agent and an antibacterial agent, and the prepared hydrogel has the advantages of good mechanical property, injectability, self-repairability, excellent antibacterial property, biocompatibility and the like, and can be widely applied to skin wound protection, infection treatment, gynecologic inflammation treatment and the like.

The invention provides a manufacturing method of a semiconductor device. The manufacturing method mainly comprises the following steps: forming an oxide layer and a source polycrystalline silicon layer of which the upper surface is higher than the surface of a semiconductor substrate in a deep trench of the semiconductor substrate; forming a photoresist layer to distinguish a terminal region and aprimitive cell region; etching the source polycrystalline silicon layer at the primitive cell region; etching the oxide layer at the primitive cell region to form a gate trench; removing the photoresist; and forming a gate oxide layer and an isolation dielectric layer in the gate trench, and then forming a gate polysilicon layer. The top of the source polysilicon layer filled in the deep trench is higher than the surface of the semiconductor substrate. The height difference between the top of the source polycrystalline silicon layer and the top of the oxide layer is reduced, so that the problem of incomplete etching of the gate polycrystalline silicon in the transition region of the gate polycrystalline silicon layer and the source polycrystalline silicon layer during subsequent back etching of the gate polycrystalline silicon layer is avoided, and the problem of saturated gate current failure caused by short circuit of the gate and the shielding gate is solved.

The invention discloses a cleaning machine for a solar battery panel. The cleaning machine comprises a vehicle body capable of moving along the surface of the solar battery panel. A groove is formed in the bottom face of the vehicle body. A mounting space used for mounting a cleaning assembly is formed in the groove in a pre-install mode. Upper and lower pulleys are respectively arranged on the upper and lower sides in the groove. The solar battery panel is arranged behind the groove. Running rails of the upper and lower pulleys are formed on the upper and lower lateral edges of the solar battery panel. A driving machine in the vehicle body drives the upper and lower pulleys to move the vehicle body. An infrared sensor and a controller are arranged on the front side of the vehicle body. The controller controls the driving machine to work according to signals of the infrared sensor. According to stain types of the battery panel, a sand sucking device is especially arranged to clear sandon the battery panel surface firstly, then a washing device washes bird droppings or other sticky matters attached to the surface of the battery panel, and finally a drying device sucks water on thesurface of the battery panel to avoid moisture residue.

The invention provides a device and a method for preparing a sterile liquid for a filling plant. The apparatus for providing the sterile liquid for the filling system for filling containers, including a first liquid reservoir for receiving a first liquid, a second liquid reservoir for receiving a second liquid, a sterilizing device for sterilizing the first and / or second liquid, and a withdrawal device for selectively withdrawing a sterile liquid from the first or second liquid reservoir.

The invention discloses a solar panel cleaning vehicle. The solar panel cleaning vehicle comprises a vehicle body capable of moving along the surface of a solar panel, a groove is formed in the bottomface of the vehicle body, a mounting space used for allowing a cleaning assembly to be installed is pre-formed in the groove, an upper sliding wheel and a lower sliding wheel are arranged on the upper side and the lower side in the groove respectively, the solar panel is arranged behind the groove, the upper side edge and the lower side edge of the solar panel form a running track of the upper sliding wheel and a running track of the lower sliding wheel respectively, a driver in the vehicle body drives the upper sliding wheel and the lower sliding wheel so as to move the vehicle body, bufferpads cover the two ends of the vehicle body, a handle is arranged at the top of the vehicle body, the cleaning assembly comprises a sand suction device, a scrubbing device and a drying device, and thecleaning assembly right corresponds to the solar panel. Aiming at the type of stains on the panel, the sand suction device is particularly arranged to clear sand thoroughly on the surface of the panel firstly, the scrubbing device is used for brushing off bird droppings or other viscous substances adhered to the surface of the panel, and the drying device is used for absorbing water on the surface of the panel so as to avoid water residues.

The invention discloses a method for using a stannous oxide catalyst in an esterification step in the production of a plasticizer, which is characterized by hot spraying stannous oxide onto an inner wall of a reaction kettle and the pipe wall of an inner disc in a spraying thickness of 0.1 mm. In an esterification reaction, a heat sources heats the catalyst first to improve the temperature and activity of the catalyst to improve reaction speed consequently; in the production, no other catalyst is required to be added into the reaction kettle; and the method can shorten production period, optimize production process and save production cost.

The invention discloses a device and method for preparing whitening and freckle-removing mask liquid. The device comprises a mixing box, a water outlet pipe communicating with the bottom of the left side of the mixing box and a case fixedly connected to the right side of the mixing box, wherein a valve is fixedly connected to the water outlet pipe; the top of the mixing box is fixedly connected with a pressurizing cylinder; and a feeding cylinder is fixedly connected to the top of the mixing box and located on the left side of the top of the pressurizing cylinder through a fixing plate; a supporting plate is fixedly connected to the inner middle part of the case; an air pump is fixedly connected to the top of the supporting plate; and the air outlet end of the air pump communicates with the right end of the pressurizing cylinder. The invention belongs to the technical field of chemical equipment. According to the device and method for manufacturing the whitening and freckle-removing mask liquid, the pressurizing cylinder is arranged to provide materials for the mixing box, the materials can be sprayed into the mixing box in an accelerated mode in a pneumatic pressurizing mode, thenthe materials can be uniformly sprayed into a solution, so a mixing reaction speed can be increased; and quantitative material adding can be achieved through the feeding cylinder on the device, and use is convenient.

An abnormally-shaped auger drum-type mixer with adjustable zigzag blades. A drum body and a main shaft rotate in the same direction with different speeds; an abnormally-shaped auger is mounted on the main shaft; the abnormally-shaped auger comprises a diameter-variable forward screw belt and a diameter-variable backward screw belt; adjustable zigzag blades are mounted at the top of the screw belts; the mixer can mix a plurality of materials rapidly and uniformly, and has significant mixing effect on powdery materials with certain viscosity and poor fluidity.

The invention discloses a manufacturing method of a low-eddy-current heating combined magnet and a clamping tool. The method comprises the following steps of preheating a magnet assembly; forming a thermosetting resin layer which is not completely cured on at least one surface of the pretreated magnet assembly; stacking the magnet assembly by adopting a clamping tool, forming the thermosetting resin layer which are not completely cured on the stacked surfaces of the magnet assembly and extruding the stacked magnet assembly under the extrusion force of 0.01 MPa to 2.5 MPa; baking and curing thestacked magnet assembly and the clamping tool in an oven atthe baking temperature of 150-200 DEG C for 10-24 h; cooking the above to acquire a combined manget. The invention further discloses a clamping tool for preparing the low-eddy-current heating combined magnet. According to the invention, the resin layer is formed on the surface of the magnet assembly and is heated and cured after being stacked, and extra treatment of redundant viscose is not needed.

The invention provides a numerically-controlled machine tool waste separating device and a working method thereof, and belongs to the field of waste treatment. The device comprises a workbench, a crushing bin fixedly connected to the top of the workbench, and a second conveying mechanism, wherein a feeding port, a discharging port and a crushing mechanism are arranged on the crushing bin, a mounting frame is connected to the side of the workbench through bolts, a driving mechanism is arranged on the mounting frame, and the driving mechanism is connected with the crushing mechanism to achieve crushing; the second conveying mechanism comprises a second conveying belt and three third rotating shafts, waste scraps are conveyed through a first conveying roller, and when the iron materials move to the side, close to a third conveying belt, of the second conveying belt, the adsorption effect of a magnetic adsorption plate is gradually lost, so that the iron materials fall to the upper side of the third conveying belt, other waste materials are conveyed to the upper side of a discharging groove through a first conveying belt, the separation and conveying effect is achieved, the iron materials and other materials in the waste materials are effectively separated, the subsequent separation work is reduced, and the working efficiency is improved.

The invention discloses a traditional Chinese medicine for gout treatment and a preparation method thereof and relates to a traditional Chinese medicine composition. The traditional Chinese medicine for gout treatment comprises, by mass, 7-12 parts of atractylodes lancea, 7-12 parts of phellodendron amurense, 7-18 parts of medicinal cyathula roots, 27-35 parts of coix chinensis, 10-25 parts of rhizoma dioscoreae colletii, 15-25 parts of alisma plantago-aquatica, 10-20 parts of rhizoma smilacis glabrae, 7-12 parts of lycopus lucidus, 7-12 parts of caesalpinia sappan and 4-10 parts of rheum officinale. The traditional Chinese medicine for gout treatment has the functions of clearing away heat and promoting diuresis and relieving swelling and pain, and can lower the recurrence rate of gout diseases effectively.

The present invention relates to a display method for a color sequential display. The display method includes following steps. First, a frame is displayed by four color signals of a red signal, a green signal, a blue signal and a compensation signal. Next, a frame period is divided into eight subframe periods according to a sequence. Next, three of the said four color signals are selected and arranged in a sequence. And then, the selected three color signals are respectively displayed at the first, the second and the third subframe periods according to the sequence and respectively displayed at the fourth, the fifth and the sixth subframe periods according to the same sequence. After that, the unselected color signal of the said four color signals is displayed at the seventh and the eighth subframe periods.

The invention discloses a treatment device for realizing continuous derusting work of a steel rail for rail inner side cleaning. The device comprises a supporting top plate and side mounting plates, the left side of the adjusting threaded sleeve rod is rotationally connected with an adjusting mounting plate, lifting adjusting mechanisms are fixedly connected to the left side of the adjusting mounting plate and the right side of the supporting top plate, the output end of the lifting adjusting mechanism is fixedly connected with a walking side plate, a walking supporting mechanism is fixedly connected to the middle of the outer side of the walking side plate, a steel rail top sliding plate is fixedly connected to the left side close to the upper portion of the walking side plate, a derusting through groove is formed in the position, close to the back face, in the side mounting box, a derusting grinding wheel is rotationally connected into the derusting through groove, and a polishing cleaning wheel is rotationally connected to the position, located on the front face of the derusting grinding wheel, of the outer side of the side mounting box. According to the treatment device for realizing continuous derusting work of the steel rail for rail inner side cleaning, which relates to the technical field of rail cleaning, the purposes of achieving continuous derusting work and improving the derusting quality are achieved.

The invention relates to biomass energy compression molding equipment, in particular to compression molding equipment for biomass energy. According to the compression forming equipment for the biomass energy, a large amount of biomass energy can be compressed at a time, and repeated manual taking and placing work is not needed. According to the technical scheme, the compression forming equipment for the biomass energy comprises a base, a supporting seat, a compression box, a first rotating shaft and the like, the supporting seat is arranged on the right side of the top of the base, the compression box for compressing the biomass energy is arranged on the top of the supporting seat, and the first rotating shaft is rotationally arranged in the middle of the lower portion of the compression box. After biomass energy needing to be compressed is poured into the compression box, the servo motor is started to work, compression work can be automatically carried out, the compressed biomass energy can automatically flow out, in this way, operation is convenient, and it is not needed to manually take and place materials many times.

The invention discloses an automatic cleaning and sweeping robot for pavements or workshops. The robot comprises a circular base, a water storage tank and a butt joint clamping box, the water storage tank is fixedly installed in the middle of the outer surface of the upper end of the circular base, and four sets of fixing clamping blocks are fixedly installed on the side edge, close to the water storage tank, of the outer surface of the upper end of the circular base; a fixed bottom plate is fixedly installed on the outer surface of the bottom of the circular base, a sponge cushion plate is fixedly installed on the outer surface of the bottom of the fixed bottom plate, four sets of fixing bolts are fixedly connected between the fixed bottom plate and the sponge cushion plate in a sleeving mode, and a plurality of sets of drainage grooves are formed in the inner side of the bottom of the fixed bottom plate. A positioning clamping groove is formed in the outer surface of the side edge of the water storage tank; according to the automatic cleaning and sweeping robot for the road surface or the workshop, an auxiliary conveying structure is arranged, the blocking phenomenon is avoided, the using stability is improved, the mopping effect is improved, and the robot is more convenient and faster to use.

The invention relates to a smashing and stirring device, in particular to a solid medicine smashing and stirring device for the burn department. According to the technical purpose, the solid medicine smashing and stirring device for the burn department can rapidly grind tablets into medicine powder. According to the technical scheme, the solid medicine smashing and stirring device for the burn department comprises supports, a smashing frame, pedals, an extrusion block, a smashing mechanism, a containing mechanism and a stirring mechanism, the two supports are arranged in the device, the smashing mechanism is arranged between the supports, the smashing frame is arranged on the smashing mechanism, the two pedals are arranged on the smashing mechanism, and the extrusion block is arranged on the smashing mechanism. A containing mechanism is arranged on the support, and a stirring mechanism is connected between one sides of the support. An extrusion block can continuously rotate through the arranged crushing mechanism, and then the extrusion block can be matched with a crushing frame to crush the medicine; and through the arrangement of the containing mechanism, the medicine which is not crushed temporarily can be placed.

The invention discloses a multifunctional debridement device for the general surgery department. The multifunctional debridement device comprises a bed body, wherein a guide block is installed on theleft side of an upper end of the bed body, a guide rod is installed in the middle of the guide block, a movement plate is installed at the right end of the guide rod, an adjusting plate is hinged to the right side of an upper end of the movement plate, a first hinging plate is installed in the middle of a lower end of the adjusting plate, a self-locking spring rod is installed at the lower end ofthe first hinging block, a second hinging block is installed at the lower end of the self-locking spring rod, the left end of the bed body is provided with a backup plate, a driving box is installed at a lower end on the left side of the backup plate, a rotational wheel is installed at an upper end inside the driving box, ring teeth are uniformly installed on the outer side of the rotational wheel, a limiting sleeve is installed at an upper end on the right side of the backup plate, a limiting block is installed inside the limiting sleeve, and a medicine guiding cavity is connected at the lower end of the limiting block. According to the multifunctional debridement device for the general surgery department, the adjustment of an up-down inclination angle of the adjusting plate is realized,the fact that back-and-forth movement is carried out to move a patient to the upper end of the adjusting plate and then lift up the patient is avoided, and the multifunctional debridement device is not only convenient for the patient but also reduces the labor intensity of medical staff.

The invention discloses a high-precision on-line analysis system for the amount of excessive alkali. The high-precision on-line analysis system includes a rack, wherein an analysis cabin is fixed on the rack; a pretreatment filtering device and an analyzer host are fixed in the analysis cabin; the analyzer host comprises a host case, a display screen is arranged on the host case, an analysis system and an electric control system are arranged in the host case; the analysis system comprises an excessive alkali amount detector, a feeding device and a discharging device; the excessive alkali amount detector comprises a sample cup and a test assembly, the test assembly comprises a reagent dropwise adding device and a tester; the invention also provides a high-precision on-line analysis method for the amount of excessive alkali. The analysis method comprises the following steps: cleaning impurities such as silt, introducing a solution to be detected into a pretreatment filtering device, cleaning the sample cup of the excessive alkali amount detector, quantifying a solution in the sample cup, detecting the content of sodium hydroxide and sodium carbonate, and cleaning the excessive alkaliamount detector. According to the method, the contents of sodium hydroxide and sodium carbonate can be simultaneously and respectively detected, the detection precision and efficiency are improved, and the cost is reduced; the service life of equipment is prolonged, and automatic control is realized.