50results about How to "Increase effective uptime" patented technology

The invention discloses a method for clarifying a mixed water body containing algae and sand. Firstly, inorganic flocculating agent is added into the mixed water body containing the algae and the sand, and is evenly mixed through a pipeline mixer to generate flocculation, then organic flocculating agent is added after a plurality of small flocculating conglomerations are produced, and is evenly mixed through the pipeline mixer to form a coagulated water body containing large flocculating conglomerations, wherein, the adding amount of the inorganic flocculating agent is 0.0005 to 0.0100 percent of the weight of the water body, and the adding amount of the organic flocculating agent is 0.0001 to 0.0030 percent of the weight of the water body. Then the coagulated water body is drawn into a single-segment sedimentation pond for sedimentation treatment, and water overflows from the upper layer of the sedimentation pond, enters a fine filter chamber, and passes through a quartz sand and anthracite filtering layer for fine filtration treatment, thereby obtaining clear water with SS less than or equal to 5mg / L and a turbidity less than or equal to 1.

The invention relates to auxiliary equipment for Czochralski silicon growth equipment, and aims to provide an external continuous feeding mechanism for a monocrystal furnace. The feeding mechanism includes a bunker with a seal cover; a discharge valve is arranged on bunker bottom; the discharge valve is connected to a discharge inner pipe, which is sleeved by a discharge outer pipe; the discharge outer pipe is connected with a transmission mechanism for realizing telescoping of the discharge outer pipe along a discharge inner pipe extending direction, and the discharge inner pipe, the discharge outer pipe and the transmission mechanism are all arranged inside an airtight cylinder; an airtight cylinder bottom is equipped with a globe valve or a flap valve; an feeding inlet is arranged on an upper part of a main furnace chamber of the monocrystal furnace, and is connected with the globe valve or the flap valve in an airtight way. According to the invention, material charging can be realized without furnace halt to facilitate continuous growth of multiple crystals and save time require by furnace halt, furnace rubbing, charging, vacuum-pumping and material melting, so as to substantially increase production efficiency and utilization rate of a quartz crucible and lower costs effectively.

The invention discloses a terminal application control method, a terminal and a computer readable memory medium. The method is applied to the terminal. The method comprises the steps of determining to-be-frozen target applications from applications of the terminal according to a preset deep freezing selection policy when it is detected that a deep freezing condition of the terminal is triggered; and carrying out deep freezing on the target applications according to a preset deep freezing performance policy, wherein the preset deep freezing performance policy comprises the step of interceptinginternal unfreezing triggering messages sent to the target applications in a target application freezing process, thereby avoiding the unnecessary power consumption resulting from the fact that the temporary unfreezing of the applications is triggered by the internal unfreezing triggering messages. The invention also discloses the terminal and the computer readable memory medium. A program of thefunction is stored on the computer readable memory medium. A processor is enabled to perform the scheme. When the terminal is idle, the application freezing effectiveness is improved, the effective operation time of the terminal is improved, the standby power consumption of the terminal is reduced, and the user experience is improved.

The invention relates to auxiliary equipment for Czochralski silicon growth equipment, and aims to provide an external continuous feeding mechanism for a monocrystal furnace. The feeding mechanism includes a bunker with a seal cover; a discharge valve is arranged on bunker bottom; the discharge valve is connected to a discharge inner pipe, which is sleeved by a discharge outer pipe; the discharge outer pipe is connected with a transmission mechanism for realizing telescoping of the discharge outer pipe along a discharge inner pipe extending direction, and the discharge inner pipe, the discharge outer pipe and the transmission mechanism are all arranged inside an airtight cylinder; an airtight cylinder bottom is equipped with a globe valve or a flap valve; an feeding inlet is arranged on an upper part of a main furnace chamber of the monocrystal furnace, and is connected with the globe valve or the flap valve in an airtight way. According to the invention, material charging can be realized without furnace halt to facilitate continuous growth of multiple crystals and save time require by furnace halt, furnace rubbing, charging, vacuum-pumping and material melting, so as to substantially increase production efficiency and utilization rate of a quartz crucible and lower costs effectively.

The invention relates to the technical field of polystyrene sheets and particularly relates to an anti-fog sheet and a manufacturing method thereof. The anti-fog sheet comprises 94.9% of polystyrene resin and masterbatch with an anti-fog function, and is characterized in that the masterbatch with an anti-fog function comprises 5% of antifogging agents and 0.1% of mineral oil. Compared with the prior art, the method has the advantage that a biaxially-oriented polystyrene sheet produced through the method does not require the procedure of external coating; no trace of coating liquid remains on the surface of the biaxially-oriented polystyrene sheet; the surface of the biaxially-oriented polystyrene sheet is neat, the light transmittance is improved by 2%, and the added value of the product can be improved; external coating is not used any longer, and then a rubber roller of a coating system is not required to be replaced, so that not only is the maintenance cost lowered, but also the production continuity is improved, the maintenance cost can be lowered by 450,000 each year, and the effective running time of a product line can be shortened by 60 to 72 hours.

The invention belongs to the technical field of water treatment, in particular to a strengthened land domestic sewage treatment device with a built-in biological porcelain granule pipe, comprising a surface layer, a local soil and find sand layer, a find sand layer and a gravel water-collecting layer from top to bottom; the local soil and find sand layer is provided with a water-distribution percolation tank which is internally provided with the biological porcelain granule pipe; the biological porcelain granule pipe is filled with biological porcelain granules; a gap between the water-distribution percolation tank and the biological porcelain granule pipe is also filled with biological porcelain granules; both ends of the biological porcelain granule pipe are provided with muffle plates;one end of the biological porcelain granule pipe is connected with an intake pipe; the other end is connected with a backwashing water pipe; the intake pipe is also used as the backwashing water pipe;the top of the water-distribution percolation tank is covered with permeable non-woven fabrics; an exhalent pipe is arranged below the gravel water-collecting layer; double opening standpipes are inserted from top to bottom, sequentially penetrate through the surface layer, the percolation layer and the gravel water-collecting layer and comprise an inner layer of drainpipes and an outer layer ofdrainpipes. The device lessens pollutants entering in a land treatment system, such as suspended substances, organic substances, and the like, so as to reduce soil blockage phenomenon, improve the hydraulic load and prolong the serviceable life of land sewage treatment. In addition, the double opening standpipes are arranged to enhance oxygen supply and are beneficial to monitoring the operation state of the system in an operation process.

The invention discloses a biogas slurry filtration column and use thereof. The biogas slurry filtration column includes a column body and corn stalk filled in the column body; and the corn stalk diameter is 20mm-100mm. A biogas slurry filtration method comprises the following steps: flowing to-be-filtered biogas slurry through at least one biogas slurry filtration columns, and collecting filtrate at biogas slurry filtration column outlets for realization of the biogas slurry filtration. The biogas slurry filtration columns or the corn stalk is used in biogas slurry filtration. The invention has the following advantages: the corn stalk is cheap and easy to get, the first recycling of the corn stalk is realized; after biogas slurry filtration, the corn stalk needs no washing, the water resource is saved, waste corn stalk can be directly used for aerobic composting to achieve the second recycling of the corn stalk; the problems that the biogas slurry is high in suspended matters and clogging is easy to cause in the drip irrigation and film concentration treatment process can be solved, the filtering process is purely physical filtration, original various nutrients in the biogas slurry can be greatly kept, and long-term stable operation of the treatment means can be ensured.

The invention discloses a method for removing metal ion impurities in an aluminium chloride solution by multistage resin columns. The invention discloses a method for removing iron impurity ions, calcium impurity ions and magnesium impurity ions in the aluminium chloride solution. The method comprises the following steps of: adjusting the pH of the aluminium chloride solution to be 0.1-3.5, and then sequentially enabling the aluminium chloride solution to pass through a strong acid-type cation exchange resin column group and a chelate resin column group, wherein the cation exchange resin column group and the chelate resin column group comprise at least two stages respectively, and each stage comprises 1-4 parallel resin columns. The method disclosed by the invention is simple in process, easy to control production process, stable in product quality, good in impurity removal effect, and capable of adopting a high treatment flow speed, thus improving the production efficiency.

The invention provides a wind generating set enabling power to be distributed intelligently and relates to the field of wind power generation. Two or more than two independent generators are adopted in the wind generating set, a planetary gear system is utilized to be matched with a brake and a clutch so as to serve as a power distribution device, power distribution is controlled intelligently according to measured data through a measurement and control circuit, and therefore wind energy can be used more reasonably and more efficiently. The wind generating set is wide in wind speed application range, can improve the utilization efficiency of the wind energy, can run in an all-weather mode (can be adapted to various wind speed environments and increase effective running time), and can make full use of the strong wind energy in the high-speed strong wind environment, thereby increasing on-grid energy greatly, improving economic benefit, and greatly shortening investment payoff period. The wind generating set is simple in structure, low in investment cost increase and capable of improving earnings greatly.

The invention provides an unattended machining method for numerical control machining equipment, which comprises the following steps of: before unattended machining, installing all parts in place, preparing a cutter of a machine tool, calling a numerical control program, and starting continuous production; monitoring the load condition in real time in the production process, and when the cutting load of a certain point of the part is larger than a threshold value, conducting shutdown; before part hole machining, measuring the length of a hole machining tool, and when the deviation between thelength of the tool and the tool length recorded by a system is larger than a set value, conducting shutdown; after part of the set part machining content is completed, using a measuring head in the machine tool for measuring the machining size concerned in the part, if the size exceeds a set value, conducting shutdown, and if the size is within the tolerance range but deviates from a median, conducting tool compensation, and ensuring the consistency of the machining size; and the process safety and the quality safety are guaranteed by monitoring the machining process, and if data monitoring inthe machining process is not abnormal, the machining program normally runs until machining is completed. The numerical control equipment is improved on the basis of existing numerical control equipment, and unattended machining of the numerical control equipment is achieved.

A system for remotely controlling a power supply of a camera comprises a computer with a camera control program, a network transmission channel, an encoder, a one-way decoder, an alternating current contactor and the camera. The computer is connected to the encoder through the network channel, a 485 signal output port of the encoder is connected to a signal input port of the one-way decoder, an output switch of the one-way decoder and an induction coil of the alternating current contactor are connected in series to form a loop, and an output switch of the alternating current contactor and the input end of the power supply of the camera are connected in series to form a loop. According to the system, through the virtual camera, the switch of the one-way decoder is controlled by controlling lamplight control signals of the virtual camera, a normally-closed switch of the alternating current contactor is controlled, and then the goal of controlling the power supply of the camera is achieved. Common faults of the camera can be rapidly processed, and fault time is shortened; meanwhile, labor force can be greatly saved and the camera is convenient to manage.

The invention discloses a feather type vertical shaft wind wheel, comprising a wind wheel shaft, and two or more pairs of blade brackets arranged on the wind wheel shaft; a blade rotating shaft is fixed between the ends of each pair of blade brackets; a circular arc-shaped blade is fixed on the blade rotating shaft; the tail end of the blade bracket is provided with a blade pitch control device; the blade pitch control device comprises a positioning disc, a blade return spring and positioning dowels; the positioning dowels are arranged in the periphery of the positioning disc and the number of which is at least three; one end of the blade return spring is connected with the blade bracket; the other end of the blade return spring is connected onto the circular arc-shaped blade which is provided with a positioning slot; the circular arc-shaped blade is positioned on different positioning dowels on the positioning disc through the trough under the action of the blade return spring. Compared with the prior art, the invention realizes the starting and efficient running of the wind wheel, and keeps functional transmission of the rated wind speed running under strong wind and fierce wind.

The invention belongs to the field of automatic continuous concentration technology of a polytetrafluoroethylene emulsion, and discloses a high-quality polytetrafluoroethylene emulsion automatic continuous concentration system and a method thereof. The high-quality polytetrafluoroethylene emulsion automatic continuous concentration system comprises: a vacuum concentration screw machine; the automatic continuous concentration system adopts a dispersion polymerization liquid collection tank as the starting point and a finished product collection tank as the end point to form a complete vacuum system; a dispersed polymerization liquid controls the output through a feed regulating valve, and the concentration time is adjusted by a frequency control screw; a dispersion buffer tank, a vacuum concentration screw machine and an emulsion filter form a core concentration unit, the vacuum concentration screw machine is provided with an outer jacket, and a circulating hot water regulating valve isinterlocked with the temperature of the concentrated screw machine. The novel technology of the invention is advanced and is stable to operate, has high production efficiency, and is low-cost; and the product has stable quality. The product is resistant to strong acid, strong base, strong oxidant, etc., and has outstanding heat resistance, cold resistance and abrasion resistance.

The invention belongs to the field of aerodynamic design of hypersonic-speed temporary-flushing wind tunnels, and particularly relates to a wind tunnel device for prolonging the operation time of a hypersonic-speed temporary-flushing wind tunnel, which comprises a gas storage tank, and a gas storage section and a spray pipe which are coaxially arranged, the tail part of the gas storage section extends into the gas storage tank and is hermetically communicated; a flow guide cone cylinder and a flow guide cone which are coaxial with the gas storage section are arranged in the gas storage tank; the front end of the diversion cone extends into the tail end of the gas storage section; the flow guide cone is fixedly mounted on one side, coaxially opposite to the tail end of the gas storage section, of the gas storage tank; expansion waves sequentially pass through the gas storage section and the diversion cone cylinder and reach the diversion cone, and the diversion cone separates the expansion waves and reflects the expansion waves to the two sides of the gas storage tank; a gap exists between the tail end of the flow guide conical cylinder and the inner wall of the gas storage tank, and the outer wall of the flow guide conical cylinder and the inner wall of the gas storage tank define a relatively closed expansion wave dissipation cavity; and the separated expansion wave reaches the expansion wave dissipation cavity through the gap and is gradually dissipated. According to the invention, the effective operation time of the hypersonic speed transient wind tunnel can be effectively prolonged, and the efficiency and cost performance are high.

The invention discloses a novel underground multi-belt speed matching flexible control device. The device is characterized by comprising an underground conveying belt system, belt speed sensors, an electronic belt scale and a control system. According to the device, matching of the conveying capacity and speed of the belt coal conveying system is realized, then the effective operation time of thebelt conveying system can be obviously prolonged, the production efficiency can be improved, the belt overload and coal piling accidents are reduced or even avoided, meanwhile, the maintenance time ofbelt equipment can be greatly shortened, and the service life of belt conveying equipment is prolonged; the operation cost of the equipment is reduced, and the production safety is improved; the economic and social benefits are very obvious; and in addition, for the multi-belt speed and conveying capacity matching system, the speed and the coal conveying amount of each underground coal conveyingbelt and the equipment load can be monitored in real time, so that the coal production process can be monitored and managed, the intelligent control over the belt coal conveying system is realized, and the requirements of modern mine safety production scheduling are met and adapted.

The invention discloses an equi-index plate arraying mechanism. The equi-index plate arraying mechanism comprises a front equi-index plate equi-index plate unit and a rear equi-index plate equi-indexplate unit which integrally and synchronously rotate, wherein a working gap is formed between the front equi-index plate equi-index plate unit and the rear equi-index plate equi-index plate unit; a plurality of grooves for accommodating products and a plurality of ratchets are processed in the outer edge of the front equi-index plate equi-index plate unit and the outer edge of the rear equi-indexplate equi-index plate unit in an equal dividing manner; in every two adjacent grooves arrayed in order, the side wall of the outline of a first groove extends to the inside wall of a second groove toform a first abutting wall of the products, and a second abutting wall of the products is formed in the inner side wall of the corresponding ratchets; a baffle is arranged in front of a discharging bottom plate for transporting the products, and extends into the working gap of the front equi-index plate unit and the rear equi-index plate unit; the discharging bottom plate is provided with two side plates; the equi-index plate assembly is fixed by a distance disk; and the distance disk is driven by a main shaft. Through the adoption of the equi-index plate arraying mechanism disclosed by the invention, the produced products are arrayed in good order, so that the working procedure is simplified, the working efficiency is notably improved, and the problem that the hygiene of the products isnot standardized because hands are in contact with the products is solved.

The invention discloses a mold temperature controller. The mold temperature controller comprises a machine body, wherein rollers are arranged at one end of the machine body; a heat dissipation window is formed in the surface of the machine body; an observation window is formed in one end of the heat dissipation window; an operation board is arranged at one end, away from the heat dissipation window, of the observation window; a support frame is arranged at one ends, away from the machine body, of the rollers; a shockproof structure for a side wall is arranged at one side of the machine body; a first shockproof structure for a base is arranged between each roller and the support frame; a second shockproof structure for the base is arranged at one sides of the first shockproof structures for the base; the shockproof structure for the side wall comprises a first spring, a magnet and an electromagnet; each first shockproof structure for the base comprises a containing groove, a bracket, a second spring, a sliding base and a slide way; and the second shockproof structure for the base comprises a main air groove, air bags and an auxiliary air groove. The mold temperature controller has the beneficial effects that partial operating condition in the machine body can be observed through the formed observation window, so that the situation that a fault cause cannot be determined in a short time when the machine body breaks down is prevented, and the internal operating condition after a fault can be known by observing the internal condition through the observation window.

The invention provides an oil well operation abnormity alarming treatment method. On the basis of data acquisition equipment, a data transmission unit, a data processing unit, a data storage unit and a user terminal, the data processing unit acquires working condition data of an oil well and analyzes and treats the working condition data; if the acquired working condition data is out of a change range which is set by taking oil well basic data as standards, alarming information is generated, and an oil well affiliated unit is informed of performing treatment on the alarming information in a mode of discovering a dialog in time and treating the dialog in time; a primary manager audits a measure taken by the oil well affiliated unit; a secondary manager performs statistic assessment on abnormity alarming treatment conditions, and a tertiary manager and managers of high levels can browse and inquire any oil well operation abnormity alarming event and treatment conditions. When the oil well generates the alarming information, the oil well affiliated unit is reminded of checking oil production operation conditions and solving problems by going to a well site in time according to the method, and top-to-bottom production pressure pass is realized and the oil field management level is improved.

The invention provides an air cooler and a control method thereof. The air cooler comprises a first delivery pipeline, a plurality of first valves, a working tube bundle assembly, a spare tube bundleassembly, a plurality of second valves, a second delivery pipeline and a plurality of pressure difference detection devices. The ends of the first valves is connected with the ends of the first delivery pipeline. The other ends are connected with the ends of the working tube bundle assembly and the spare tube bundle assembly one by one. The ends of the second valves are connected with one end of the second delivery pipeline, and the other end is connected with the other end of the working tube bundle assembly and the spare tube bundle assembly one by one. The pressure difference detection devices are connected in parallel with the working tube bundle assembly and the spare tube bundle assembly one by one. The pressure difference detection devices detect that the pressure difference of theworking tube bundle assembly is greater than the set pressure difference. The work tube bundle assembly is blocked by the block formed by the impurity hardening. The spare tube bundle assembly, at this time, is conducted to turn off the working tube bundle assembly whose pressure difference is greater than the set pressure difference, and the normal use of the air cooler is ensured by replacement.

The embodiment of the invention provides an assembly type battery pack bracket of a hoisting type battery replacing vehicle, the battery pack bracket comprises a first body, a battery pack lock, a first reinforcing piece and a connecting piece, the battery pack lock is arranged on one side of the first body in the thickness direction and is used for fixing a battery pack; the first reinforcing piece is arranged on the other side of the first body in the thickness direction; the connecting piece is connected with the first reinforcing piece, and the first reinforcing piece is connected with a large frame of the hoisting type battery replacing vehicle through the connecting piece. The battery pack bracket provided by the embodiment of the invention is detachable, the technical defect that the battery pack bracket is easy to deform in the prior art is overcome, the overall smoothness of the battery pack bracket is ensured, and meanwhile, the battery pack bracket in the embodiment ensures the normal action of the locking structure and the normal battery replacement function.

The invention provides an adjustable battery pack locking mechanism suitable for a hoisting type battery replacing vehicle. The adjustable battery pack locking mechanism comprises an adjustable locking mechanism assembly, which is arranged on the battery pack bracket through a connecting plate and at least comprises a locking executing mechanism and a first adjustable mechanism, and the locking executing mechanism is arranged on the battery pack bracket through the first adjustable mechanism; an adjustable locking pressure plate device, which is arranged on a battery pack frame, and the battery pack frame is arranged on the battery pack bracket, wherein the adjustable locking pressing plate device at least comprises a locking pressing plate and a second adjustable mechanism, and wherein the locking pressure plate is connected with the battery pack frame, and the position of the locking pressing plate is adjusted between the locking executing mechanism and the battery pack frame through the second adjustable mechanism. When a vehicle vibrates during running and the battery pack bracket deforms, the locking mechanism cannot be unlocked or locked, or the battery pack frame or the battery pack bracket deforms greatly, the normal use of the locking mechanism is guaranteed.

The invention discloses a feather type vertical shaft wind wheel, comprising a wind wheel shaft, and two or more pairs of blade brackets arranged on the wind wheel shaft; a blade rotating shaft is fixed between the ends of each pair of blade brackets; a circular arc-shaped blade is fixed on the blade rotating shaft; the tail end of the blade bracket is provided with a blade pitch control device; the blade pitch control device comprises a positioning disc, a blade return spring and positioning dowels; the positioning dowels are arranged in the periphery of the positioning disc and the number of which is at least three; one end of the blade return spring is connected with the blade bracket; the other end of the blade return spring is connected onto the circular arc-shaped blade which is provided with a positioning slot; the circular arc-shaped blade is positioned on different positioning dowels on the positioning disc through the trough under the action of the blade return spring. Compared with the prior art, the invention realizes the starting and efficient running of the wind wheel, and keeps functional transmission of the rated wind speed running under strong wind and fierce wind.

The invention discloses a terminal application control method, a terminal and a computer readable memory medium. The method is applied to the terminal. The method comprises the steps of determining to-be-frozen target applications from applications of the terminal according to a preset deep freezing selection policy when it is detected that a deep freezing condition of the terminal is triggered; and carrying out deep freezing on the target applications according to a preset deep freezing performance policy, wherein the preset deep freezing performance policy comprises the step of interceptinginternal unfreezing triggering messages sent to the target applications in a target application freezing process, thereby avoiding the unnecessary power consumption resulting from the fact that the temporary unfreezing of the applications is triggered by the internal unfreezing triggering messages. The invention also discloses the terminal and the computer readable memory medium. A program of thefunction is stored on the computer readable memory medium. A processor is enabled to perform the scheme. When the terminal is idle, the application freezing effectiveness is improved, the effective operation time of the terminal is improved, the standby power consumption of the terminal is reduced, and the user experience is improved.

The invention relates to the technical field of photovoltaic coating equipment, and discloses a front-end filtering device of a vacuum pump. The front-end filtering device of the vacuum pump comprises a filtering box, and a heating assembly, a cooling assembly and a filtering assembly which are arranged in the filtering box, wherein a water inlet, an air inlet and an air outlet which are mutually communicated are formed in the filtering box, the water inlet is formed in the bottom of the filtering box and used for being communicated with a water source, the air inlet is formed in the side wall of the filtering box, the air outlet is formed in the upper portion of the filtering box and used for being communicated with a vacuum pump, the heating assembly, the cooling assembly and the filtering assembly are sequentially arranged between the air inlet and the air outlet from bottom to top, the heating assembly can heat water to atomize the water, a cooling liquid is arranged in the cooling assembly, and tail gas can be sequentially subjected to water mist thermal reaction by the heating assembly, condensed by the cooling assembly to remove impurities, filtered by the filtering assembly, subjected to gas-liquid separation and then input into the vacuum pump. The vacuum pump front-end filtering device can guarantee the effective operation environment of the vacuum pump and reduce the maintenance cost of the vacuum pump.

The invention discloses a method for detecting the grounding current of a polysilicon reduction furnace power supply system by grades. According to the difference of the constant current maintenance voltage required in different stages of silicon core growth, the maintenance voltage is set in grades, and each grade is set with a corresponding early warning value of the grounding current. and the action value, the warning value is less than the action value. When the ground current corresponding to the maintenance voltage reaches the early warning value, an early warning will be given, and the operator will adjust the process parameters according to the early warning to avoid or delay the ground current reaching the operating value; when the ground current corresponding to the maintenance voltage reaches the operating value, the polysilicon reduction furnace power supply system will be stopped. operation. The protection accuracy of the invention is higher, and while ensuring the safe operation and production of the reduction furnace, phase loss and delayed phase loss can be reduced, and the effective operation time of the reduction furnace is increased, thereby increasing the production capacity.

The invention relates to the technical field of polystyrene sheets and particularly relates to an anti-fog sheet and a manufacturing method thereof. The anti-fog sheet comprises 94.9% of polystyrene resin and masterbatch with an anti-fog function, and is characterized in that the masterbatch with an anti-fog function comprises 5% of antifogging agents and 0.1% of mineral oil. Compared with the prior art, the method has the advantage that a biaxially-oriented polystyrene sheet produced through the method does not require the procedure of external coating; no trace of coating liquid remains on the surface of the biaxially-oriented polystyrene sheet; the surface of the biaxially-oriented polystyrene sheet is neat, the light transmittance is improved by 2%, and the added value of the product can be improved; external coating is not used any longer, and then a rubber roller of a coating system is not required to be replaced, so that not only is the maintenance cost lowered, but also the production continuity is improved, the maintenance cost can be lowered by 450,000 each year, and the effective running time of a product line can be shortened by 60 to 72 hours.

The invention provides a sand making system using a high-frequency sieve under strong wind conditions. The sand making system comprises a dewatering sieve, a sand dust recovery station, a water tank, a slurry processing device, a finished product collecting device, a pisolite sieve, a fast sand dust separator and a sewage processing device. A sand making method for the sand making system adopts the following steps that: (1) stone dust features of stone used by rough material sources are analyzed; (2) the water spraying intensity and the specific installing position of a spraying pipe are determined; (3) the overflowing opening height of the fast sand dust separator is adjusted; (4) the hole diameter of a sieve net of the high-frequency sieve and the sewage discharging quantity of the slurry processing device are regulated; and (5) equipment is started for sand making. The sand making system and the sand making method have the advantages that through the modes of high-frequency sieve spraying, precipitation sand collection and overflow dust removal, the problem of conflict between dust extinguishing and screening percentage can be effectively solved; the dust-free production is realized; the operation environment is improved; and the occupational health harm caused by dust is avoided.

The application discloses a polysilicon slag slurry harmless treatment system, the polysilicon slag slurry harmless treatment system comprises a filtering device, a storage device and a mixing devicewhich are sequentially communicated through pipelines; the filtering device is used for filtering slag slurry containing silicon powder generated in the polysilicon production process to generate filter residue; the storage device is used for collecting the filter residue generated by the filtering device and obtaining the quality of the filter residue through a weighing module; the mixing deviceis used for processing the filter residue to generate brick-making raw materials when the quality of the filter residue in the storage device is greater than or equal to a preset quality threshold. Byadopting the system, polycrystalline silicon slag slurry can be subjected to harmless treatment, and the polysilicon slag slurry harmless treatment system is more environment-friendly and reduces energy consumption compared with the existing polycrystalline silicon slag slurry treatment system.