69results about How to "Improve preprocessing effect" patented technology

The invention discloses an urban safety risk assessment method and system based on a digital standard, and the method comprises the steps: obtaining urban safety risk monitoring data and historical data, constructing a risk index event library according to the historical data, carrying out the abnormal screening and classification of the monitoring data, and obtaining risk indexes, matching the risk indicator with the risk indicator event library to determine a first risk event, predicting an uncertain risk event according to the first risk event, and constructing a city safety risk assessment model according to the first risk event, the uncertain risk event and the risk event weight, and inputting to-be-assessed city safety risk monitoring data and historical data into the city safety risk assessment model to obtain a city safety risk assessment result. The method not only can improve the efficiency and accuracy of urban safety risk assessment, but also has good interpretability, and can be directly applied to an urban safety risk assessment system.

The invention discloses a bridge type transfer conveyor for coal mining, relates to the technical field of conveying, and aims to solve the technical problem that the capacity of pretreating coal briquettes before conveying is weak in the limited space of a thin coal seam. The bridge type transfer conveyor comprises a bridge type transfer conveyor main body, and a coal feeding mechanism is arranged at the lower end of the bridge type transfer conveyor main body; a coal discharging port is formed in the high end of the bridge type transfer conveyor body, the coal feeding mechanism comprises two fixed side plates, the two fixed side plates are of a symmetrical structure and are connected through a screening plate and a feeding plate, the screening plate is arranged above the feeding plate, the side wall of the screening plate is connected with an impurity leading-out plate, and the impurity leading-out plate is connected with a coal discharging port. A feeding frame is arranged at the top of the fixed side plate, a coal briquette crushing assembly is arranged between the screening plate and the feeding plate, and an impurity removing assembly is arranged on the side wall of the coal briquette crushing assembly. The coal crushing and impurity removing device has the advantages that coal can be subjected to pre-crushing and impurity removing operation, and the coal pretreatment capacity is improved.

The invention belongs to the technical field of quality detection, and particularly relates to an intelligent quality inspection and process optimization system based on machine vision, which comprises an image acquisition unit, an illumination compensation unit, an image preprocessing unit, a feature extraction unit, a feature matching unit, a difference analysis unit, a quality evaluation unit, a process adjustment suggestion unit and a feedback execution unit. By introducing the illumination compensation unit, the illumination intensity can be automatically adjusted under various illumination conditions, and it is ensured that the quality of the obtained image is always in the optimal state. The improvement not only improves the effect of image preprocessing, but also enhances the accuracy of feature extraction and matching, and finally improves the detection precision and stability of the whole system. In addition, the illumination compensation unit is added, so that the requirement of manual intervention is reduced, and the system is more intelligent and automatic and adapts to a wider production environment.

The utility model discloses a wastewater treatment device for circuit board production, and belongs to the technical field of circuit board production. Comprising a treatment box, a water inlet pipe is arranged at the upper end of the treatment box, a water outlet pipe is arranged at the lower end of the right side wall of the treatment box, a feeding opening is formed in the position, over the water outlet pipe, of the right side wall of the treatment box, a stirring and screening mechanism is arranged in the treatment box, and the stirring and screening mechanism comprises a motor; through the arranged stirring and screening mechanism, when wastewater enters the treatment box, a screen plate can vibrate up and down, the situation that due to standing of the screen plate, metal waste residues block filter holes, and the filter efficiency is affected is avoided, and meanwhile vibration of the screen plate can drive a dredging rod and a scraper to move up and down in a reciprocating mode; the dredging rod and the scraping plate are used for dredging and scraping the sewer pipe wall of the water inlet pipe, so that waste residues in wastewater are prevented from being attached to or blocking the water inlet pipe, the wastewater can enter the treatment box more smoothly, and the pretreatment effect of the wastewater is improved.

The invention provides a waste gas treatment device and process for light brick production, and relates to the technical field of waste gas treatment. A control panel and a buzzer alarm are mounted on the left side of the waste gas pretreatment unit, and the control panel is electrically connected with the buzzer alarm; the exhaust unit is mounted at the top end of the waste gas pretreatment unit; four groups of waste gas purification units are arranged, and the four groups of waste gas purification units are mounted in the exhaust unit; the driving unit is mounted on the right side of the waste gas pretreatment unit; the auxiliary unit is mounted on the waste gas pretreatment unit and the exhaust unit; the detection unit is mounted on the waste gas pretreatment unit; the pretreatment liquid can be selected from purified water or chemical liquid and the like, so that particulate matters or harmful gas in waste gas can be conveniently pretreated; the problems that a pretreatment structure is generally lacked, tiny particles and harmful gas in waste gas cannot be pretreated, and the subsequent purification difficulty is increased are solved.

The invention relates to the technical field of nuclear reactor core calculation, and discloses a method and a device for calculating a physical and thermal coupling numerical value of a reactor, a medium and equipment. In the process of calculating the physical and thermal coupling numerical value of the reactor, a neutron space-time dynamic model is subjected to time discretization by adopting a diagonal implicit Runge-Kutta format; in the transient analysis process, coupling calculation is carried out through a simple operator splitting method and a Picard iteration method to obtain a calculation value, coupling global solution variables are selected based on a Newton method, a global solution residual equation is established, solving is carried out through a Krylov subspace solution method based on the coupling global solution variables and the global solution residual equation, a JFNK iteration process is constructed, and a transient analysis result is obtained. And finally, taking the calculated value as an initial value, establishing a hybrid iteration process according to the initial value and the JFNK iteration process, and calculating to obtain a reactor transient physical thermal full-coupling numerical solution. According to the method, excessive solution is avoided, the convergence speed is increased, and stable and rapid convergence calculation is realized.

The invention discloses an intelligent prediction method and system for the life cycle of a building material, and the method comprises the steps: obtaining the failure data and state data of the building material, fitting the failure data to obtain the basic predicted life of the building material, calculating the comprehensive damage degree according to the state data of the building material, calculating the environmental impact factor according to the environmental parameter, and predicting the life cycle of the building material. And calculating a first predicted life, a life deviation coefficient, an environmental damage degree, a loss life and a second predicted life, constructing a building material life cycle intelligent prediction model according to a calculation result, and inputting failure data and state data of a to-be-predicted building material into the building material life cycle intelligent prediction model to obtain a predicted life and a risk factor. The method not only can improve the efficiency and accuracy of building material life cycle intelligent prediction, but also has good interpretability, and can be directly applied to a building material life cycle intelligent prediction system.

The invention belongs to the technical field of feed production, and discloses low-viscosity fermented enzymatic soybean meal and a preparation method thereof. The preparation method comprises: adding puffed soybeans to soybean meal as a hydrolysis raw material, wherein the mass proportion of puffed soybeans in the hydrolysis raw material is 10-30%; mixing the hydrolysis raw material with hot water according to a mass ratio of 1: (0.25-0.35), adding lipase of 1-3% of the mass of the hydrolysis raw material, and hydrolyzing at 35-45°C for 12-36h to obtain a hydrolyzed material; after the hydrolyzed material is sheared and emulsified, the water content of the hydrolyzed material is adjusted to 35-50%, and fermentation and enzymolysis are performed after inoculating a bacterial enzyme complex; the lipase is lipase A or a complex of lipase A and other lipases in a mass ratio of 1: 1. The fluidity and sensory viscosity of the fermented enzymatic soybean meal obtained by the present invention are significantly improved, the production and application efficiency is improved by 60%, and it has a fermented acid aroma, and also produces an animal-friendly meaty flavor. After being applied to feed, the diarrhea rate of suckling pigs is reduced by 65%, the feed intake is increased by 20%, and the feed-to-meat ratio is reduced by 8%.

The landfill leachate pretreatment equipment comprises a treatment barrel, a mounting plate is fixedly connected to the side wall of the treatment barrel, a coagulant storage tank and a variable pump are fixedly connected to the upper side of the mounting plate, and the input end and the output end of the variable pump are fixedly connected with a connecting pipe and a liquid supply pipe correspondingly; one end of the connecting pipe extends into the coagulant storage tank, one end of the liquid supply pipe penetrates through the side wall of the treatment barrel and extends into the treatment barrel, a fixing plate is fixedly connected to the side wall of the upper end of the treatment barrel, and a connecting plate is fixedly connected to the upper side of the fixing plate. According to the device, landfill leachate pretreatment processes such as impurity filtration, coagulating sedimentation and ammonia stripping can be completed in one device, the whole device is more convenient to place and assemble, and the pretreatment effect of the landfill leachate is improved by dynamically regulating and controlling the stripping process and the coagulating sedimentation process in the landfill leachate pretreatment.

The invention belongs to the technical field of sewage treatment, and particularly relates to a sewage treatment reaction tower which comprises a tower body, two feeding holes are formed in the end part of the tower body; two first connecting pipes are fixedly connected to the inner part of the tower body and positioned below the feeding hole; a first servo motor is fixedly connected to the position, located between the two first connecting pipes, in the tower body. The filter disc rotates along with the output end of the first servo motor, after the filter screens at the filter holes are blocked, the filter screens of the other filter holes are switched in time for continuous use, and the filter screens made of different materials can be arranged in the filter holes, so that the subsequent wet oxidation reaction effect on sewage is improved; the wet oxidation box is fixed to the bottom of the tower body to collect treated sewage, the effect of wet oxidation reaction on the sewage is achieved, a plurality of stirring blades extend into filtering holes to stir, and the situation that a filter screen is blocked by accumulated sludge in the filtering holes is reduced.

The invention relates to the technical field of building reclaimed material collection treatment and classified collection, in particular to an automatic classification warehouse management device based on a self-propelled reclaimed material collection device, which comprises a main frame, self-propelled tracks and a centralized storage system, the self-propelled tracks and the centralized storage system are mounted on two sides of the main frame, and a middle modular classified storage module is mounted on the upper surface of the main frame. According to the automatic classification warehouse management device based on the self-propelled reclaimed material collecting device, an electric control type overturning telescopic control arm is adopted for carrying out telescopic and rotary adjustment on an electric control type shovel hopper, construction waste can be conveniently shoveled away, loaded and unloaded, and operation is easy and convenient; and the modularized storage bin is supported and overturned by adopting an electric control overturning supporting platform in the main frame, so that the modularized storage bin can be conveniently replaced according to needs, and the applicability is improved.

The utility model relates to the technical field of power plant comprehensive wastewater treatment, in particular to a power plant comprehensive wastewater deep circulation treatment water-saving system which comprises a wastewater buffer pool. A chemical crystallization granulation fluidized bed, a steel clarifier, a clean water tank, a high-efficiency fiber filter, an ultrafiltration device, an ultrafiltration water production tank, a reverse osmosis device and a reuse water tank are in fluid communication with a water outlet of the wastewater buffer tank in the water flow direction, the reverse osmosis device is provided with a first water discharge pipe and a second water production pipe, and the first water discharge pipe is connected with a desulfurization system; the second water producing pipe is connected with a recycling water tank, and the recycling water tank is connected with a recycling system through a pipeline. A softening and clarifying pretreatment mode is adopted, so that the removal rate of SS (suspended solids) reaches up to 80-90%, and the SS content of effluent is kept below 10mg / L; the removal rate of COD (chemical oxygen demand) can reach 20-30%; the hardness removal rate reaches up to 80%-90%, and the effluent hardness is kept below 20 mg / L; in addition, calcium fluoride is generated while hardness is removed, and most fluorine ions can be removed.

The invention relates to the field of Internet text content recognition, in particular to a text specific information recognition and judgment method, which comprises the following steps of: (S1) acquiring text data, performing preprocessing and word segmentation, calculating a hash value of each word through an improved hash algorithm, forming a dictionary, calculating short-term and long-term frequencies by utilizing a multi-level time sequence model, and calculating a short-term frequency and a long-term frequency; identifying abnormal high-frequency words as potential new word candidate words, and mapping the abnormal high-frequency words to a high-dimensional vector space to generate a comprehensive semantic vector; and (S2) constructing a context semantic graph model by using the comprehensive semantic vector, analyzing context compatibility of words, constructing a multi-task learning sentiment analysis model, respectively calculating sentiment scores and specific field correlation scores, comprehensively calculating the scores to obtain the total confidence coefficient of each candidate word, identifying potential new words, and obtaining the candidate words. According to the invention, the capability of identifying hidden illegal contents and the reliability of identifying and judging specific text information can be improved.

The invention discloses a data quality analysis method and system based on big data, and the method comprises the steps: obtaining monitoring data and state data, carrying out the statistics of the integrity of the monitoring data, determining an integrity index, inputting the access state data and the timeliness state data into a state function, obtaining an accessibility index and a timeliness index, and carrying out the calculation of the accessibility index and the timeliness index. Determining a normative index according to the normative state data and the standard data, performing exception screening on the monitoring data, determining a consistency index according to an exception screening result, constructing a data quality analysis model, and inputting to-be-analyzed monitoring data and state data into the data quality analysis model to obtain a quality analysis result. The method not only can improve the efficiency and accuracy of data quality analysis, but also has better interpretability, and can be directly applied to a data quality analysis system.

This utility model relates to the field of waste incineration technology and discloses an integrated micro-power water washing device for waste incineration fly ash, including a tank. A hopper is fixedly connected to the top of the tank, and a discharge pipe is embedded in the middle of the bottom of the tank. A dust-raising pipe is embedded through the hopper and the top of the tank. An inner conical fixed plate is fixedly connected to the bottom of the dust-raising pipe. A liquid guide pipe is wound around the outer wall of the dust-raising pipe, and one end of the liquid guide pipe extends to the outer end of the tank. The bottom end of the liquid guide pipe is coiled and embedded in the conical surface of the inner conical fixed plate. Several nozzles are embedded on the liquid guide pipe located on the inner conical surface. Several chambers are opened in the wall of the dust-raising pipe, and several elastic balls are arranged inside the chambers. The beneficial effects of this utility model are: the water pump delivers hot water to form an air curtain with the inclined nozzles, eliminating the need for traditional stirring equipment. Micro-power water washing is achieved by using water flow and heat effect, which greatly reduces energy consumption.

The invention discloses a sample pretreatment device for food detection and a process thereof, belonging to the technical field of food detection pretreatment, comprising a treatment box, a top box is fixedly installed on the top of the treatment box, a top cover is arranged on the top of the top box, a recovery box is fixedly installed on one side outer wall of the treatment box, and a driving motor is fixedly installed on one side outer wall of the treatment box; in the present invention, a longitudinal mixing component, two adsorption magnetic seats and a transverse mixing component are matched, and through this design, food can be pretreated quickly, and at the same time, the comprehensiveness and effectiveness of food pretreatment can be guaranteed, solutes can be evenly distributed in food, and the accuracy of subsequent sample detection can be guaranteed, and by utilizing the magnetic attraction effect, the solutes that have settled on the bottom can be scooped up while the material collecting component reciprocates, and the use of the longitudinal mixing component and the transverse mixing component in coordination with each other can further improve the pretreatment effect of food.

The invention provides a reverse osmosis membrane integrated system applied to chemical wastewater treatment, and belongs to the technical field of chemical wastewater treatment.The reverse osmosis membrane integrated system comprises reverse osmosis host equipment, the reverse osmosis host equipment comprises a frame, a high-pressure pump is arranged on the inner wall of the frame, and a reverse osmosis membrane assembly is further arranged on the frame; the reverse osmosis membrane assembly is used for separating salt and organic matter impurities in the chemical wastewater, and pretreatment equipment is further mounted on one side of the frame and is used for pretreating the chemical wastewater before the chemical wastewater enters the reverse osmosis host equipment; the device can be driven by natural impact force generated when chemical wastewater enters the separation tank to operate, large impurities in the chemical wastewater can be efficiently separated, extra power input is not needed, energy consumption and operation cost are reduced, in the impurity separation process, the filter screen can be automatically and intermittently dredged, good permeability of the filter screen is maintained, and the service life of the filter screen is prolonged. The continuous and stable operation of the pretreatment equipment is ensured, and the working efficiency is improved.

The invention provides plastic electroplating pretreatment equipment. The plastic electroplating pretreatment equipment comprises a box body, a stirring mechanism and a liquid injection and drainage mechanism, the stirring mechanism is mounted in the box body and is used for stirring liquid in the box body; the liquid injection and discharge mechanism can inject liquid into the box body and discharge the liquid out of the box body. A plastic workpiece is placed in the box body; according to the operations of hydrophilicity, coarsening, reduction, activation, peptization and the like, liquid of the corresponding steps is injected into the box body through the liquid injection and drainage mechanism, after the previous process step is completed, the solution in the box body is discharged through the liquid injection and drainage mechanism, and then the solution of the next process step is introduced; therefore, a plurality of pretreatment process steps such as hydrophilicity, coarsening, reduction, activation and peptization can be carried out on the plastic workpiece in one box body, so that the occupied area can be greatly reduced, and the pretreatment device is suitable for pretreatment of the plastic workpiece in the test stage; and when the plastic workpiece is treated, liquid in the box body can be stirred according to requirements, so that the mixing uniformity of the solution in the box body is guaranteed.

The utility model belongs to the technical field of smelting, and discloses a copper-tin heterogenous solid waste recovery smelting device which comprises a supporting box, one end of the supporting box is fixedly connected with a power motor, the output end of the power motor is fixedly connected with a first rotating shaft, and the inner surface of the supporting box is fixedly connected with a supporting frame. A first protecting sleeve is fixedly connected to the top end of the supporting frame, one end of a first rotating shaft penetrates through the first protecting sleeve and is fixedly connected with a first bevel gear, a second bevel gear is connected to the outer surface of the first bevel gear in an engaged mode, a second rotating shaft fixedly sleeves the inner surface of the second bevel gear, and the bottom end of the second rotating shaft is rotationally connected with the supporting frame. By arranging the power motor, the pre-treatment effect of waste materials before smelting is greatly improved, a high-quality raw material basis is provided for the subsequent smelting procedure, and the efficiency and quality of the whole recycling and smelting process are remarkably improved.

The invention provides a deep eutectic solvent as well as preparation and application thereof. The deep eutectic solvent is prepared from choline chloride, p-toluenesulfonic acid, 1, 4-butanediol and water, wherein the molar ratio of choline chloride to p-toluenesulfonic acid to 1, 4-butanediol is (1-2): (3-6): (2-8), and the ratio of the total mass of choline chloride and p-toluenesulfonic acid to the mass of water is 20: (9-11). When the eutectic solvent is used for pretreating the pennisetum hydridum, hemicellulose and lignin on cell walls of the pennisetum hydridum can be effectively removed, and then the enzymolysis efficiency of cellulose of the pennisetum hydridum is remarkably improved.

The utility model discloses an acrylic fiber pure textile fabric pretreatment device for an aircraft cabin, and relates to the technical field of textile fabric pretreatment. The device comprises a first mounting frame, a second mounting frame and a third mounting frame, a brushing mechanism is rotatably arranged on the first mounting frame and the second mounting frame, driving mechanisms are arranged on the first mounting frame and the second mounting frame, acrylic fabric penetrates through the brushing mechanism, a singeing mechanism is arranged on the third mounting frame, and a singeing mechanism is arranged on the third mounting frame. Cleaning mechanisms are arranged on the first mounting frame and the second mounting frame, and the brushing mechanisms are in transmission connection with the cleaning mechanisms. When the supporting shaft rotates, the first gear fixed to the supporting shaft drives the second gear meshed with the first gear to rotate, then the fixing rod and the first cleaning needle are driven to rotate, impurities wound on the rolling brush are stripped, the phenomenon that the brushing effect is affected by yarn ends is prevented, non-stop cleaning is achieved, and the practicability and flexibility of the device are improved.

The invention relates to a method for improving the sugar yield of corn straw through pretreatment of an alkaline eutectic solvent, which comprises the following steps: synthesizing the eutectic solvent by using choline hydroxide and an organic solvent 1, 3-propylene glycol, adding the eutectic solvent and corn straw residues extracted by absolute ethyl alcohol into a reaction kettle, reacting the straw under certain conditions, filtering, washing, and drying to obtain the sugar yield of the corn straw. And then separating and drying to obtain filter residues and filtrate, and drying the filter residues to obtain treated corn straw residues. The eutecticevaporate solvent has a good pretreatment effect on the corn straw, selectively removes lignin and hemicellulose, increases the contact area of cellulase and a substrate, remarkably improves the sugar yield of the corn straw, has the characteristics of simplicity, high efficiency and easiness in operation, and has important significance on high-value utilization of the lignocellulose resource of the corn straw.

The invention discloses synthesis equipment and a synthesis method of monodistributed molecular weight resin, and relates to the field of resin synthesis equipment.The synthesis equipment comprises a frame, a pretreatment assembly is movably connected to the top of an inner cavity of the frame, a driving assembly is installed at the top of the pretreatment assembly, and a protruding block is installed on the inner wall of the pretreatment assembly; a sealing cover is installed at the bottom of the pretreatment assembly, fixing piles are symmetrically installed on the two sides of the frame, a centrifugal assembly is installed at the bottom of the sealing cover, a main stirring roller and an auxiliary stirring roller are rotationally connected into an inner cavity of the centrifugal assembly, a material barrel is arranged at the bottom of the centrifugal assembly, and a rotating shaft is rotationally connected to the center of the bottom of an inner cavity of the material barrel. Positioning blocks are symmetrically and movably connected to the two sides of the rotating shaft. According to the synthesis equipment and the synthesis method of the monodistributed molecular weight resin, the synthesis equipment can ensure the resin synthesis precision, can pretreat the raw materials of the resin, and can effectively ensure the size and the quality of the resin.

The invention discloses an urban water area sewage purification device, and belongs to the technical field of sewage treatment, the urban water area sewage purification device comprises a cylinder, the top of the cylinder is provided with an access cover, the side wall is connected with a water inlet pipe and a water outlet pipe, the water inlet is connected with a grating assembly, and the grating assembly is provided with a chemical agent supply mechanism; at least two submersible pumps are installed at the bottom in the barrel, the output ends of the submersible pumps are connected with pressure pipelines, and control valves and check valves are arranged on the pressure pipelines. An intelligent control cabinet is integrated on the top of the barrel and electrically connected with the liquid level sensor and the submersible pump. The grating assembly is arranged at the water inlet, large-particle impurities in sewage can be effectively intercepted, the impurities are prevented from entering the cylinder to block a pressure pipeline or abrade a submersible pump, the equipment fault occurrence rate is remarkably reduced, and the service life of the device is prolonged; meanwhile, the grid assembly and the chemical agent supply mechanism are arranged cooperatively, so that the agent can be fully mixed with the sewage subjected to preliminary filtration, the reaction efficiency of the agent is improved, and the subsequent purification effect is enhanced.

The present invention relates to the technical field of biological fermentation, and discloses a lignocellulose raw material pretreatment method, which comprises: mixing a lignocellulose raw material with an acid liquid, (1) using steam to increase the pressure of a mixing system to 0-0.2 MPa (gauge pressure), increasing the temperature to 100-130 DEG C, and maintaining for 0.5-1 min; (2) continuously raising the temperature of the mixed system to 170-200 DEG C by using steam, raising the pressure to 0.8-1.6 MPa, and pretreating for 2-10 minutes at the temperature and the pressure; the components of the pretreated raw materials are optimized, specific raw materials suitable for the pretreatment process are screened out, and the pretreatment effect can be improved; and the pretreatment process is improved, so that the enzymolysis saccharification effect can be further improved.

The invention relates to a hydrogen peroxide production wastewater pretreatment method, and belongs to the technical field of wastewater treatment. The graphene oxide is used as a substrate material, some oxygen-containing functional groups such as hydroxyl, epoxy group and carboxyl are connected to the two-dimensional base plane of the graphene oxide, and the hydrophilicity is good. Carboxyl on graphene oxide and soluble ferric salt are subjected to a complex reaction under the high-temperature condition, the ferric salt covers the surface of the graphene oxide, graphene-loaded nano ferroferric oxide particles are synthesized, the agglomeration effect of nano ferroferric oxide can be reduced, the catalytic effect of nano ferroferric oxide is improved, the dosage of a catalyst is reduced, and the cost is reduced. In addition, a sulfonic acid-based ionic liquid is added in the process of synthesizing graphene nano ferroferric oxide, sulfonic acid groups are introduced into interlayers and the surface of graphene, and the introduction of the sulfonic acid groups increases the number of acidic active centers on the surface of the graphene, so that the catalytic activity, the selectivity and the reaction rate of the nano ferroferric oxide are improved; the catalytic oxidation effect is improved, and the wastewater treatment efficiency is improved.

The utility model discloses a high-pressure homogenizer. The collision nets are arranged at the feed port of the homogenizer in a linear array manner; according to the device disclosed by the invention, the collision net and the flowing ports which are provided with multi-layer filtration and optimized structural design are arranged at the feeding hole, so that primary dispersion and crushing are realized before raw materials enter a homogenizer, larger particles and impurities are prevented from entering a system, and the blocking risk is reduced; meanwhile, through optimized shearing and collision effects, the homogenizing efficiency and reliability of the equipment are greatly improved.

The utility model relates to a sludge treatment system for a refuse landfill, which comprises a sludge tank, a sludge adjusting tank, an ultrahigh-pressure filter press, an incinerator, a primary sedimentation tank, a secondary sedimentation tank, an integrated sewage treatment machine and a disinfection box, and the sludge tank, the sludge adjusting tank and the ultrahigh-pressure filter press are sequentially connected through sludge pumps. A sludge outlet of the ultrahigh pressure filter press is connected with the incinerator through a sludge pump, a water outlet of the ultrahigh pressure filter press is connected with the primary sedimentation tank through a water pump, a water outlet of the primary sedimentation tank is connected with a water inlet of the secondary sedimentation tank through a water pump, and a water outlet of the secondary sedimentation tank is connected with a water inlet of the integrated sewage treatment machine through a water pump. A water outlet of the integrated sewage treatment machine is connected with a water inlet of the disinfection box through a water pump, and sludge discharge ports of the primary sedimentation tank and the secondary sedimentation tank are connected with a sludge tank through a sludge pump. The sludge treatment device is small in occupied area and good in sludge treatment effect.

The invention relates to the technical field of paint spraying pretreatment, and discloses a surface treatment device used before paint spraying of an environment-friendly wooden door, which comprises a conveying assembly used for conveying plates, and is characterized in that a processing main body is arranged at the top of the conveying assembly, and the processing main body comprises a driving device arranged at the top of the conveying assembly and used for driving the conveying assembly to rotate; the driving device is used for providing power for re-starting and re-stopping of a subsequent assembly, meanwhile, the driving device is matched with the subsequent assembly to conduct pinhole removal treatment and surface burr treatment on the surface of a plate, the pretreatment quality of the device and the paint spraying quality of the subsequent plate are improved, and a user can use the device conveniently; the device has the advantages that the pretreatment effect of the device and the paint spraying quality of the plate are improved, and the device is convenient to use by a user.

The present invention belongs to the technical field of all-cotton knitted fabric processing, and in particular relates to an all-cotton knitted fabric oxidative impregnation bio-enzyme pretreatment system and method, comprising a water washing empty box and a soaking empty box fixedly connected to the two ends of the water washing empty box, the two soaking empty boxes are fixedly connected with support legs at the bottom, the two sides above the water washing empty boxes are rotatably connected with limit rollers, the water washing empty boxes are rotatably connected with contact rollers, the two soaking empty boxes are fixedly connected with limit supporting plates, the two limit supporting plates are rotatably connected with winding rollers, the two soaking empty boxes are slidably connected with two notched round rods, two groups of two notched round rods are respectively slidably connected to the two ends of the two winding rollers, and the two groups of two notched round rods are fixedly connected with horizontal vertical plates. The system can clean the hydrogen peroxide entering the water to ensure that there is no impurity residue in the water, and further enhance the effect of oxidative impregnation bio-enzyme pretreatment on the all-cotton knitted fabric.