42results about How to "Environmental impact factors are small" patented technology

The invention provides a fluorine-containing wastewater treatment method, which comprises the following steps of: detecting pH value of the fluorine-containing wastewater; adjusting the adding amount of alkali or acid solution according to the pH value detection result to control the pH value of the fluorine-containing wastewater; detecting fluorine ion concentration of the fluorine-containing wastewater, and determining the adding amount of a calcium salt according to the result; delivering the fluorine-containing wastewater to a first reaction tank and a second reaction tank in turn, stirring the wastewater and performing full mixing reaction; delivering the treated wastewater to a third reaction tank, stirring the wastewater, adding coagulant into the wastewater to generate flocculation reaction to realize solid-liquid separation, and separating calcium fluoride from the wastewater; delivering the treated wastewater to a fourth reaction tank, stirring the wastewater, and adding coagulant aid to improve the settling effect; and finally, delivering the treated wastewater into a settling tank, discharging clear solution, and filter-pressing silt into mud cakes. The fluorine-containing wastewater treatment method provided by the invention has ideal treatment effect, meanwhile saves the consumption of chemicals, and reduces the treatment cost.

The invention relates to a porcelain full-body archaized brick and a preparation method thereof. The preparation method of the porcelain full-body archaized brick comprises the following steps that (1), color blending is conducted on green body powder, and the green body powder is prepared into at least two kinds of colored powder; (2), the at least two kinds of colored powder is subjected to material distribution according to a preset textured pattern so that the full-body is provided with each colored powder, pressing forming is conducted, and a green body is obtained; (3), ink jetting and positioning printing are conducted on the green body according to the preset pattern; (4), an enamel layer is applied to the surface of the green body; and (5), the whole green body is fired to obtainthe porcelain full-body archaized brick. Through combination of green body material distribution and ink jetting positioning printing, a surface glaze layer is removed, the forming effect of the porcelain full-body archaized brick combines a stereo effect of the green body texture and the rich colors of the ink jetting printing, and a ceramic product which is equal inside and outside, high in stereoscopic sensation and rich in layer is formed.

The present invention relates to an ink capable of producing corrugated glaze effect. The ink comprises a hydrophobic compound of a low molecular organic fluoride accounting for 0.05% -5.0 wt.% of the ink. The ink of the invention has hydrophobic effect, so if the ink is sprayed onto a ceramic green body first, even the slurry using water as a solvent ink is uniformly sprayed on the ink layer, slurry on the will be peeled off due to the hydrophobic property of the ink layer and recesses are formed.

The invention relates to inkjet penetrating light-transmitting bricks and a preparation method thereof. The preparation method of the inkjet penetrating light-transmitting bricks comprises the following steps: (1) carrying out color matching on a light-transmitting blank body powder material to prepare at least two types of toners; (2) carrying out material distribution on the at least two types of toners according to a pre-set texture pattern, so as to form a texture pattern with various toners on a whole body; pressing and molding to obtain the blank body; (3) positioning and printing on theblank body according to a pre-set pattern in an inkjet penetrating manner; (4) firing the whole blank body to obtain the inkjet penetrating light-transmitting bricks. A light-transmitting ceramic product which is the same outside and inside and has a strong stereoscopic feeling and abundant layers can be formed, and can be used for completely replacing a jade type light-transmitting stone material.

The invention discloses a dry granular glaze for a soft polished brick and an application of the dry granular glaze. The dry granular glaze for the soft polished brick comprises mixed dry granules composed of 15%-35% of low-temperature dry granules, 40%-70% of medium-temperature dry granules and 15%-35% of high-temperature dry granules.

The invention discloses an automatically-connected remote control grounded line disconnection and selection working method for a low-current system, and belongs to a remote control disconnected and connected line breaker method. The method comprises the following flows that: a central monitoring system sends a remote control command to a remote transformer substation; an on-site automatic line selection device in the transformer substation receives the remote control command and performs disconnection through a line measurement and control device; the line breaker performs disconnection and starts a connection loop to perform automatic connection instantly; although the line breaker performs disconnection and connection instantly, the measurement and control device acquires information indicating whether voltage is changed instantly; a programmable logic or judgment device generates a message of a bus voltage recovery state and processes the message; the programmable logic or judgment device judges whether to continue to pull the line or upload a line selection result according to a bus voltage recovery condition; and the operation is sequentially circulated until a grounded line is disconnected permanently. The invention has the advantages that: the power failure time of a user is shortened, and the operation time of the conventional line disconnection method is shortened to 1 second or so; and the method is easy to operate, high in performance, safe, reliable and high in practicability slightly influenced by a communication network environment and powerful.

The invention relates to a method for preparing inkjet-penetrated travertine polished tiles. The method comprises the following steps: (1) carrying out secondary material distribution on a bedding material and a facing material, and then, carrying out press-forming, so as to obtain unburnt tiles, wherein the facing material is mixed with a multicolored pore former, and the multicolored pore former is subjected to material distribution according to pattern grains; (2) drying the unburnt tiles obtained in the step (1), so as to remove pores formed by the pore former; (3) carrying out inkjet penetration on unburnt tiles obtained in the step (2); and (4) carrying out burning and polishing on unburnt tiles obtained in the step (3). According to the method, through carrying out secondary material distribution and distributing the multicolored pore former on surfaces according to certain grains, rich-hierarchy pores are formed in surfaces according to the pattern grains, so that the inkjet-penetrated travertine polished tiles are closer to natural stone and also have stereoscopic-impression effect.

The invention provides an oil-paper insulation equipment aging state identification method based on Raman spectrum clustering analysis. The method comprises the following steps: respectively acquiringa plurality of oil-paper insulation samples of a known aging stage and an unknown aging stage through an oil-paper insulation thermal aging experiment; acquiring Raman spectrum data of a plurality ofoil paper insulation samples in a known aging stages and unknown aging stage, and carrying out standardization processing; adopting a principal component analysis method to extract Raman spectrum characteristic quantity of the standardized oiled paper insulation samples in the known aging stage, and establishing an oiled paper insulation aging evaluation model based on a clustering analysis method; and inputting the Raman spectrum characteristic quantity of the oiled paper insulation sample in the unknown aging stage into the model for clustering analysis to obtain the aging stage of the oiled paper insulation sample in the unknown aging stage. According to the invention, on the basis of Raman spectrum measurement, the oilpaper insulation aging evaluation model is established, aging stateanalysis is carried out, and diagnosis of the overall aging state of the on-site oilpaper insulation equipment can be rapidly and effectively realized.

The invention belongs to the field of wastewater treatment and specially relates to a method for recycling acid liquor by utilizing aluminum-containing electric cast liquid and fluorine-containing wastewater. The method comprises the following steps: pre-treating the fluorine-containing wastewater and then collecting to a storage tank 1; pre-treating the aluminum-containing electric cast liquid and then collecting to a storage tank 2; taking the fluorine-containing wastewater in the storage tank 1 and the aluminum-containing electric cast liquid in the storage tank 2, stirring in a reaction kettle and reacting for 1-5 hours at 10-110 DEG C under 1-5Kg reaction pressure, wherein the stirring speed is 100-300rpm; discharging the reaction material in the reaction kettle into a settling tank and precipitating for 0.5-2 hours; pumping the precipitate in the settling tank into a press filter and dewatering, thereby obtaining cryolite; discharging the acid liquor in the settling tank into a recycling tank and standing by. According to the invention, the hybrid reaction of aluminum-containing electric cast liquid and fluorine-containing wastewater is utilized to generate sodium fluoroaluminate precipitate and the acid liquor is recycled, so that the recycling of fluorine and acid liquor resources can be realized, the energy consumption is low, no secondary pollution is caused and the cost is low.

The invention discloses a ceramic plate with a colorful flow cloud surface decoration effect and a preparation method of the ceramic plate. The preparation method comprises the following steps: carrying out compression molding on a ceramic base material to obtain a green body of the ceramic plate; applying ground glaze on the surface of the green body to cover the ground color and flaws of the green body; applying cover glaze to the surface of the green body after the ground glaze is applied, wherein 0.2-0.7 wt% of color development metal oxide is introduced into the cover glaze so as to enable the color to be bright; carrying out roller printing on the surface of the green body after the overglaze is applied to form a flow cloud effect; drying the green body subjected to roller printing, and performing sintering in a kiln. According to the invention, the pattern with the cloud effect is printed on the surface of the cover glaze through roller printing, and forms a distinct contrast with the color of the cover glaze, so that the effect of distinct vision can be better formed.

The invention discloses an integrated anti-explosion networked intelligent inspection well lid. The integrated anti-explosion networked intelligent inspection well lid comprises an explosion-proof box arranged below an inspection well lid body; the explosion-proof box and the inspection well lid body are fixed in a sealed mode to form a sealed cavity; a lithium battery, a Hall liquid level switch, a gyroscope position sensor, a gas sensor, a microprogrammed control unit (MCU) processor and wireless communication modules which includes a global position system (GPS)/Beidou positioning module and a code division multiple access (CDMA)/general packet radio service (GPRS) communication module and is connected with the MCU processor are arranged inside the explosion-proof box. Multiple solar panels are evenly arranged on the upper plane of the inspection well lid body in the circumference. The gas sensor is arranged at the bottom of the explosion-proof box. A floater moves up and down through a guide rod arranged at the bottom of the explosion-proof box and is provided with a rubber film and a magnet. When the position, liquid level and gas sensors send signals, the MCU processor sends three different position, liquid level and gas signals through the CDMA/GPRS communication module, and if the water level is high, the rubber film of the floater is automatically embedded into the groove above and prevents water from entering a gas detection probe to achieve the protection function. The integrated anti-explosion networked intelligent inspection well lid is novel in structural design, high in gas detection sensitivity, explosion proof overall, and good in waterproof safety.

The invention discloses a method for identifying the separation or mixing state of binary particles in a fluidized bed, belongs to the field of multiphase flow and is aiming at problems of inaccurateidentification of a mixing/separating state of binary particles in the fluidized bed and high identification cost in the prior art. The method for identifying the separating or mixing state of binaryparticles in the fluidized bed comprises the following steps of acquiring a pressure pulsation signal in the fluidized bed; S2, processing the pressure pulsation signal in the step S1 by adopting a Hilbert-Huang transform method to obtain an intrinsic mode function IMF; constructing a characteristic value; and S3, processing the IMF in the S2 by adopting a linear analysis method to obtain different frequency bands, solving the percentage of the sum of the characteristic values in each frequency band in the sum of the characteristic values in all the frequency bands, and further identifying thestate of the binary particles in the fluidized bed. The method is advantaged in that the binary particle separation and mixing state is identified by observing the time-frequency spectrum, the data processing amount is small, the analysis speed is high, identification of the binary particle mixing state in the fluidized bed is more accurate, the environmental interference factor is small, and identification cost is low.