67results about How to "Control water speed" patented technology

The invention discloses an equestrian sport field, comprising a surface layer for paving fiber sand, a separation layer for preventing the fiber sand at an upper layer from sinking and a discharging layer located at the bottom, wherein the discharging layer comprises a single grain size broken stone layer and a graded broken stone layer; the single grain size broken stone layer is located above the graded broken stone layer; a discharging pipeline is arranged below the graded broken stone layer; the separation layer comprises an asphalt layer paved above the single grain size broken stone layer; a broken stone layer is filled on the surface of the asphalt layer; and the fiber sand is paved above broken stone on the surface of the asphalt layer. With the adoption of the technical scheme provided by the invention, the surface layer and the asphalt layer can be used for protecting and bearing horseshoes well; and each layer structure can be used for rapidly dewatering, so that the requirements of the equestrianism competition can be met. Furthermore, the materials used in the equestrian sport field provided by the invention are common and easy to obtain; and the manufacturing cost can be reduced. The invention further discloses a construction process of the equestrian sport field.

The invention relates to the technical field of geotechnical engineering, especially to a pipeline dissolution test equipment based on soil internal erosion and test method thereof. The test equipmentcomprises a water supply device, a water collecting device, an erosion generating device, a collecting device, a measuring device and a shooting device. The water collecting device, the erosion generating device and the collecting device have hollow square structures with openings in the tops and are sequentially stacked and overlapped from top to bottom; a glucose pipeline which is vertically arranged is arranged in the middle of an inner cavity of the erosion generating device, and a plurality of moisture content sensors, pore water pressure sensors and displacement sensors are arranged onthe edge of the glucose pipeline. According to the method, a solid foundation is laid for establishing an appropriate model to predict soil settlement and disturbance influence after erosion, and thetest equipment and test method have positive guiding significance in research related to water and soil loss in geotechnical engineering, prevention of harm caused by soil internal erosion in engineering construction, reduction of engineering and non-engineering accidents and the like.

The invention relates to the technical field of irrigation equipment, especially a large-area quantitative irrigation system, including a water storage tank. A water pump is arranged on the left side of the water storage tank. A water inlet pipe is connected, and the right end of the water inlet pipe communicates with the water storage tank, and the lower end of the right side of the water storage tank is fixedly connected with a connecting pipe, and a flow control device is provided on the connecting pipe, and the connecting pipe is fixedly connected There is a filtering device, the right end of the water delivery pipe is fixedly connected with a shunt pipe, the shunt pipe is fixedly connected with multiple delivery pipes, and the left end of the delivery pipe is provided with a flow control device, and the delivery pipe is connected with multiple streets, and the joints The other end is connected with a vegetable irrigation device. The invention can control the water output speed. At the same time, the combination of the flow control device and the delivery pipe can be used for local irrigation or large-area irrigation. Reasonable control of water volume can avoid waste of water resources and is worth popularizing.

The invention provides a super-large deep-sea net cage culture method for golden pomfrets. The deep-sea net cage is arranged in a sea area, fry can be directly put into the net cage to be cultured until finished fish grow up, and meanwhile, the water flow speed is controlled and feed is optimized, so that the morbidity and mortality in the culture process are reduced, and the survival rate of thegolden pomfrets is improved; in addition, the weight of the golden pomfrets can be increased to a certain extent, the yield is greatly increased, and the economic benefit is obvious. In addition, thewhole culture process of the fry is completed in the sea area, continuous water flow and substance exchange are maintained in the sea area, and the deep-sea net cage has self-cleaning capability. Therefore, drugs are not needed for disease control in the culture process of the golden pomfrets, the quality of the produced finished fish is close to the quality of wild golden pomfrets, and no drug residue exists.

The invention discloses an agricultural irrigation water conservancy monitoring system. The agricultural irrigation water conservancy monitoring system comprises a farmland, a control center, a data detection module, an equipment execution module and a plurality of irrigation water pipes for injecting water through a water pump; and a plurality of soil humidity sensors and an electric push rod are installed in the farmland, the end of the electric push rod faces upwards and is connected with a crop humidity sensor, the tops of the irrigation water pipes are rotationally connected with a water conveying guide pipe, the top of the water conveying guide pipe is fixedly connected with two obliquely-arranged water sprinkling branch pipes, the ends of the water sprinkling branch pipes are fixedly connected with water outlet pipes, and water storage cavities are formed in the water sprinkling branch pipes. According to the agricultural irrigation water conservancy monitoring system, through cooperative work of rotating mechanisms, control over the water flow speed is achieved, the problems that at present, the sprinkling irrigation range is not large enough, and only far or near positions can be subjected to sprinkling irrigation are solved, and the sprinkling irrigation range is greatly widened through the arrangement of the adjustable sprinkling irrigation speed.

The invention discloses an imaging testing system for monitoring a pollution dynamic condition of underground water and a monitoring method of the pollution dynamic condition of the underground water. An underground water pollution process is simulated in a box body; by using an electrical resistivity imaging technology, the concentration of pollutants in the underground water pollution process is subjected to a simulation test based on the relation between electrical resistivity and the concentration of the pollutants, and simulated monitoring on the pollution dynamic condition of the underground water can be conveniently carried out.

The embodiment of the invention discloses a mouse cage for a mouse sweet water preference experiment. The mouse cage comprises a cage cover and a box body, and also comprises a rotating disc which isrotatably disposed on the cage cover through a bearing, and the bearing is fixed on the cage cover; the bearing is connected with a driving device and a timer, and the driving device drives the bearing to rotate by a preset angle according to the timing period of the timer; at least two automatic ball drinking bottles are installed on the rotating disc at intervals, liquid with different sweetnessis contained in each automatic ball drinking bottle, a ball is arranged in a suction nozzle of each automatic ball drinking bottle, a weighing device is arranged on a bottle body of each automatic ball drinking bottle, and each weighing device is provided with a display screen; the display screens display the weight of liquid in the drinking bottles; and when the driving device drives the bearingto rotate by the preset angle according to the timing period of the timer, the at least two automatic ball drinking bottles on the rotating disc also rotate by the preset angle along with the bearing. The experimental data for testing the sweet water preference of rats or mice can be more convenient and accurate.

The invention relates to the technical field of physiological experiments of marine organisms, in particular to a physiological marine shellfish organism experiment device based on community level and a usage method thereof. The experiment device comprises an upper transparent bucket, a funnel, a supporting bucket and a collecting bottle, wherein a sealing cap is arranged at the top of the upper transparent bucket, an inner hanging rod for hanging an experiment biocenosis is arranged in the upper transparent bucket, one side bucket wall is provided with a water inlet and is externally connected with a water pump and a water control valve, and the other side bucket wall is provided with a water outlet. The middle of the supporting bucket is provided with a cylindrical opening, the collecting bottle is placed in the cylindrical opening, and a lower end pipe of the funnel extends into the collecting bottle. Natural seawater temperature, flowing speed and other conditions are simulated through the experiment device, physiological experiments about ingestion and metabolism of the marine shellfish biocenosis are performed by utilizing the large-volume container, experiment links are decreased, and errors existing when biont experiment results are popularized to the whole ecological system are avoided while biocenosis wholeness is kept.

The invention discloses an intelligent pipeline filtering device for intelligent water affair water supply, and belongs to the field of water supply pipeline filtering devices. According to the intelligent pipeline filtering device for intelligent water affair water supply, in the normal working process of the intelligent pipeline filtering device, suction force generated by a high-pressure water pump can form low pressure in a transition box body, a movable sealing plug moves downwards in a water inlet pipe until water can enter the transition box body through a water inlet through hole and a water supply through hole, the negative pressure formed in the transition box body can be adjusted by adjusting the power of the high-pressure water pump, the water inlet speed is controlled, and in the water inlet process, impurities filtered by a filter screen are accumulated to the filter screen, at the moment, water flow can be injected into the transition box body through the high-pressure water pump communicating with a water outlet pipe, the movable sealing plug is jacked up till the air outlet through hole is matched with a water inlet channel, water flows out through the water inlet channel, and sundries accumulated at the joint of the transition box body and the water inlet pipe are cleaned under the action of the high-pressure water pump.

The invention provides an animal physical power limit tolerance testing method and device. The device comprises a water tank and a control system. The water tank comprises a tank bottom and a tank wall. A lifting platform disposed on the tank bottom comprises a load bearing table and a lifting mechanism located below the load bearing table. A sensor is disposed on the table top of the load bearing table and used for sensing touches and the touched time of the sensor and transmitting a touch control signal when the touched time satisfies a preset time value. The control system controls the lifting mechanism to ascend and drives the load bearing table to ascend when the touch control signal transmitted by the sensor is received. The control system is further used for recording the time, from entering the water tank to platform surface of the lifting platform ascends above a water surface, of a to-be-tested animal. By the device, testing efficiency and testing precision can be increased, the defect of swimming environment singleness is overcome, and the testing requirements under complex conditions can be satisfied.

The invention discloses an intelligent dosing method for environmental emergency agent dissolving and phosphorus removal. The method comprises the following steps: collecting the inlet phosphorus content of a to-be-treated water source; determining a feedforward dosing amount according to the inlet phosphorus content; completely mixing an agent and water by using a low-position agent feeding modeand a high-position stirring and water discharging mode, acquiring the outlet phosphorus content of a water discharging opening, and feeding back to a control system; and acquiring an agent compensation value through machine autonomous learning and model training by the control system according to the feedback data, and using the compensation value for phosphorus removal and agent feeding control.According to the method, AI mathematical modeling is utilized, a composite controller combining a fuzzy technology and a conventional PID control algorithm and a feedforward and feedback control strategy are adopted, automatic control over phosphorus removal and agent adding is achieved, and the operation cost is reduced; and the integrated device can achieve rapid modular assembly, can adapt tovarious field conditions, is convenient to move, meets the requirement for rapid on-site construction of environment-friendly river dosing emergency project engineering, is high in emergency responsespeed and saves manpower and material resources.

The invention relates to a water die body used for long distance radiotherapy equipment output measurement and an application thereof. A water die body portion mainly comprises a box body. A top of the box body possesses a groove. Te box body is provided with an ionization chamber jack. A side portion of the box body is provided with a water injection knob. A bottom portion of the box body possesses a water discharge knob. The bottom portion of the box body also possesses a gas release knob. An internal portion of the box body possesses a separation plate. The separation plate divides the internal portion of the box body into a first chamber and a second chamber. The separation plate is provided with an embossment portion. The embossment portion possesses a through hole used for connecting the first chamber and the second chamber. The water discharge knob possesses a groove portion used for accommodating the embossment portion. The water discharge knob is used for controlling on and off of the first chamber and the second chamber. In the invention, an existing standard water tank is improved, the water tank possesses an internal interlayer and a medium of the interlayer is water containing a gas so that a water volume in the interlayer and an air volume are in a dynamic balancing state and then a condition that the water die body is damaged because of thermal expansion and cold contraction of water is avoided.

The invention discloses visual purification equipment for industrial wastewater treatment, and relates to the field of industrial wastewater treatment equipment. The problem that tempered glass is not easy to clean is solved; the equipment specifically comprises a base, a filtering bin is clamped to the outer wall of the base, a visible opening is formed in the inner wall of one side of the filtering bin, baffles are welded to the two sides, located in the filtering bin, of the visible opening respectively, tempered glass inclining downwards is clamped to the inner wall of the visible opening, and a lead screw is rotationally connected to the position, close to the tempered glass, of the inner wall of the bottom of the filtering bin. Through the arrangement of the visual opening, an operator can observe impurities in the filtering bin through the visual opening, a brush is arranged on tempered glass to wipe the tempered glass, water flow drives a fan to rotate, a brush handle can move downwards along a lead screw, and when the brush handle reaches the bottommost end, the water flow is weakened, and the brush handle moves upwards under the buoyancy of the floating ball, and the operation is repeated, so that the brush can better clean the tempered glass.

The invention relates to treatment equipment for wastewater, and in particular relates to the chemical treatment equipment for rare earth extraction wastewater. The technical problem to be solved is that the invention provides the chemical treatment equipment which can continuously treat the rare earth radioactive wastewater without interruption and has a fast treatment speed for the rare earth extraction wastewater. The technical solution of the invention is as follows: the chemical treatment equipment for the rare earth extraction wastewater comprises a hollow cylinder, a sewage pipe, a medicine sprinkling device and the like; and the sewage pipe is installed on the upper left side of the hollow cylinder, and the medicine sprinkling device for adding medicines for first treatment of thewastewater is installed at the left side of the top of the hollow cylinder. According to the equipment provided by the invention, the hollow cylinder is divided into two spaces, the wastewater can besimultaneously treated in the two spaces, so that the wastewater can be continuously treated without interruption, and the treatment speed of the wastewater can be accelerated; and a flow speed control device can control a water flow speed of the wastewater to change a distance that an L-shaped plate moves to the right, so that a speed of adding the medicines can be controlled, and the treatment effect of the sewage is better.

The invention provides a control method of a smart spray head in a smart home. The control method comprises the following steps that S1, a user terminal sends a using command to a home server; S2, thehome server receives the using command, acquires the external temperature information of the area where the home server is located, forms a trigger signal according to the external temperature information and generates a control signal according to the trigger signal, wherein the control signal is used for controlling water temperature regulation of the smart spray head; S3, the front end of thesmart spray head receives user command information and transmits the user command information to the home server, and the home server generates a control signal according to the command information, wherein the control signal is used for controlling on / off of the smart spray head; and S4, during a bath, the home server acquires indoor oxygen content information, forms a trigger signal according tothe oxygen content information and generates a control signal according to the trigger signal, wherein the control signal is used for controlling the operating state of the smart spray head.

The invention discloses a garden water spraying gun convenient to use, and relates to the technical field of spraying guns. The garden water spraying gun convenient to use comprises a spraying gun shell and a gun head shell. The bottom of the spraying gun shell is fixedly connected with a water inlet barrel, and one end of the water inlet barrel is sleeved with a water inlet joint. The bottom of the spraying gun shell is fixedly connected with a fixing mat, and a long bolt shaft is inserted into the fixing mat. One side of the long bolt shaft is sleeved with a water flow control barrel, and awater flow control through hole is formed in one side of the water flow control barrel. According to the garden water spraying gun convenient to use, the water flow control barrel is arranged on the long bolt shaft, and the water flow is controlled through the long bolt shaft; water flow control fan blades are arranged, so that the spraying gun controls the water flow to be evenly distributed, andwater can smoothly flow in the spraying gun; and a water flow control opening-closing mat is arranged, so that the effect of water speed control of the spraying gun is achieved.

The invention discloses a pipeline for fish culturing. The pipeline comprises a pipeline body, one end of the pipeline body is in threaded connection with a second filtering net, the other end of thepipeline body is in threaded connection with a first filtering net, and ventilation holes are uniformly formed in the surface of the pipeline body. The pipeline is reasonable in design and convenientto use, by arranging a lifting hydraulic rod and a rotary bearing, the pipeline body is conveniently arranged obliquely so that fish feed and fish manures in the pipeline can settle naturally under the action of gravitational force, by arranging a salvaging ring, the placing and salvaging of the pipeline are convenient, by arranging a driving motor and controlling the rotation rate of the drivingmotor through a controller, the control of flowing rate in the pipeline body can be achieved, by arranging a gauze net, the possibility that a turbine is twisted by debris of algae and the like is reduced, by arranging the ventilation holes, oxygen exchanging rate is provided, and the escaping of cultured fish in the pipeline body can be prevented. The pipeline has the advantages of being compactin structure, simple to operate and suitable for widely popularization.

The invention provides an instant water heater. The instant water heater comprises a shell and a heating module. The heating module comprises a cold water channel, a hot water channel and a hot water tank; the cold water channel is connected with the tap water source; a water inlet of the hot water channel is communicated with a water outlet of the hot water tank, and a water outlet of the hot water channel is connected with a water inlet of the hot water tank; heat exchange is realized between the cold water channel and the hot water channel; and a heat exchange starting device for starting the heating module on the basis of water flow in the cold water channel is further arranged. The invention further provides a control method of the instant water heater. Through the structure and the method, control over the hot water outlet flow of the hot water tank is achieved through the method, the actual hot water temperature requirement is met, and regulation and control over the outlet water temperature of the instant water heater are achieved.

The invention discloses an experimental facility and an experimental method for researching influences of water flow to attachment, germination and growth of alga spores. The experimental facility comprises a flowing water circulating system, wherein the flowing water circulating system is provided with a flowing water environment simulating water tank, a flow collecting part, a circulating water tank, a water pump, a water pipe and a water tap; the water pump can be used for pumping liquid in the circulating water tank; a water outlet of the water pump is communicated with a water inlet of the water tap by the water pipe; the water tap is arranged over a water storage tank of the flowing water environment simulating water tank so that water flow which flows out of the water tap can sequentially pass through the water storage tank of the flowing water environment simulating water tank, a first water discharging gap, a flowing water tank, a second water discharging gap, the flow collecting part, the circulating water tank, the water pump and the water pipe to form circulation. The experimental facility disclosed by the invention can be used for controlling the speed of water flow in the flowing water tank so that the water flow in the flowing water tank is quite stable and easy to control, and has the advantages of being low in cost, small in floor space, simple and convenient in application method and capable of easily controlling the temperature and light illumination to be the same.

The invention discloses a smoke exposure experimental device with a condensing box, comprising a closed combustion cabinet, a condensing box, an exposure experimental box, an air duct and a pipeline. The combustion cabinet, the condensing box, the exposure experimental box and the air duct are sequentially and annularly connected through the pipeline, the condensing box is internally provided with a condenser pipe, the exposure experimental box comprises a box body and a sealing cover, an annular groove is arranged at the top of the box body and contains liquid, a sealing cover covers on the annular groove, an annular vertical wall on the sealing cover is embedded in the liquid in the annular groove, and the air duct is internally provided with an adjustable power fan. In the smoke exposure experimental device, the condensing box is arranged between the combustion cabinet and the exposure experimental box and communicated with the combustion cabinet and the exposure experimental box through multiple groups of coiled pipes, and in an experiment, high-temperature smoke passes by the condenser pipe in the condensing box and can be cooled. Accordingly, the smoke exposure experimental simulation device can avoid burning on an experimental object by the high-temperature smoke in the experiment to further influence the experimental objectivity.

The invention discloses a gas heater. The gas heater comprises a water isolation cover, an ignition nozzle, fire grates, a smoke collection cavity and a smoke exhaust pipe. The water isolation cover is internally provided with the fire grates and the smoke collection cavity. The ignition nozzle and the smoke exhaust pipe are arranged outside the water isolation cover. Each fire grate is internally provided with a combustion cavity, wherein one end of the combustion cavity is opposite to the position of the ignition nozzle, the other end of the combustion cavity is sequentially communicated with the smoke collection cavity and the smoke exhaust pipe through a smoke exhaust hole. The invention further discloses a gas dish washer. The gas dish washer comprises the gas heater, and further comprises a machine frame, a heat exchange chamber, first shower nozzles, second shower nozzles, a water inlet box and a reciprocating mechanism. The water isolation cover is arranged in the heat exchange cover. An opening is formed in the top of the water isolation cover. The bottom of the water isolation cover is connected with the heat exchange chamber in a sealed mode. A communicating vessel is formed by the water isolation cover and the water inlet box. The water isolation cover is communicated with the first shower nozzles through a first water pump. The heat exchange chamber is communicated with the second shower nozzles through a second water pump. The gas dish washer is simple in structure, the heat exchange efficiency is improved by effectively utilizing gas heating, the dish washing efficiency is improved, and electric energy is saved.

The invention relates to a treating technology for drinking water, particularly discloses the treating technology for mineralizing drinking water in cities and towns. The treating technology comprises the steps of activating treatment of water body, removal of pollutants from the water adopting physical way and a mineralized treatment process. According to the treating technology for mineralizing the drinking water in cities and towns, functional properties of a series of natural high quality ores are optimized and combined, mineralization of effluent quality is ensured, and water quality reaches the standard of natural active mineral water, and investment is small, operating cost is low, and the effluent quality is stable.

The invention discloses a multi-stage telescoping water outlet pile. The multi-stage telescoping water outlet pile comprises a bottom fixed pipe, a top telescoping pipe, a top water outlet nozzle, transition telescoping pipes and a telescoping inner core; the transition telescoping pipes which are in telescoping connection end to end are connected between the bottom fixed pipe and the top telescoping pipe; the top water outlet nozzle is installed at the upper end of the top telescoping pipe; connection grooves which are communicated are formed in the bottom fixed pipe, the transition telescoping pipes and the top telescoping pipes; the telescoping inner core is installed in the connection grooves. The telescoping inner core comprises a bottom positioning ring, a telescoping assembly and atop positioning ring, wherein the bottom positioning ring is installed around the inside of the bottom fixed pipe; the top positioning ring is installed around the inside of the upper end of the top telescoping pipe; the upper end and the lower end of the telescoping assembly are connected between the top positioning ring and the bottom positioning ring. The multi-stage telescoping water outlet pile is good in leakproofness, the telescopic length can be adjusted, connection is stable, installation and disassembly are convenient, and the water outlet speed can be adjusted.

The invention provides a nucleus-flocculating device which comprises a hollow platform, an upper cylinder and a lower cylinder, wherein the platform has a bigger upper part and a smaller lower part; the upper cylinder is connected with the upper end of the platform; the lower cylinder is connected with the lower end of the platform; a water inlet pipe and a draining pipe are connected with the lower cylinder; a water outlet pipe is connected with the upper cylinder; a grid is arranged in a joint of the platform and the lower cylinder; a filler is filled in the platform; a ratio of upper section area F1 to lower section area F2 of the platform is (3:1)-(4:1); and the height H of the platform is 2.5-3.5 square root of F2. The nucleus-flocculating device has a good flocculating effect, is high in flocculating speed, has a simple structure and is low in production cost.

The invention relates to a water comprehensive test device for a rain test of an automobile sunroof. The device comprises a rack, a chassis water receiving device, a vehicle body assembly supporting device, an angle adjustment support device, a waterway spraying device and an electric control cabinet. The chassis water receiving device is located at a bottom of the rack, the vehicle body assemblysupporting device for supporting a vehicle body with a sunroof, the angle adjustment support device for adjusting a single angle or composite angle of the sunroof are set on the chassis water receiving device, and the electric control cabinet is disposed on a periphery of the rack. The waterway spraying device is distributed inside the rack and is used for spraying and watering the sunroof. The water comprehensive test device has the advantages of simple structure and convenience in use, the rainwater irrigation test of the sunroofs of various vehicle models and sizes can be satisfied, the accurate simulation of a rainfall amount and an irrigation amount can be achieved by the waterway spraying device, the water amount and the water flow speed are controlled, and therefore, different scenes are simulated.

The invention discloses a novel high-efficiency ceramic film. The novel high-efficiency ceramic film comprises a plate body; a plurality of channels are arranged in the plate body; the two ends of each channel are provided with U-shaped pipes; one end of the top of the plate body is provided with a water inlet; one end of the bottom of the plate body is provided with a water outlet; a control valve is arranged in the water outlet. The plurality of channels are combined by the U-shaped pipes into one channel provided with the water inlet and the water outlet, so that it is convenient for installation and dismounting of the flat plate ceramic film, complex artificial operation is avoided, and mistake rate is reduced; the detachable U-shaped pipes are adopted, so that it is convenient for cleaning of ceramic film; the control valve can be used for controlling water flow speed in the ceramic film channels, and it is convenient to control full filtration degree on solution; the unevenness curved surfaces of the internal walls are capable of increasing the contact area of solution with ceramic film, reducing water flow speed, realizing more sufficient solution filtering, and increasing working efficiency.

The invention provides an electric automobile wading working condition simulation system in one embodiment. The system comprises a simulation room, a main control computer, a water supply tower, a circulating pump A and a control valve A, wherein the main control computer, the water supply tower, the circulating pump A and the control valve A are arranged outside the simulation room; a pit, a pit water inlet groove and a pit water outlet groove are formed in the simulation room; the circulating pump A is arranged on a water supply pipeline between the water supply tower and the pit water inlet groove; an electric automobile to be tested is parked in the pit; the main control computer controls the opening of the control valve A of the circulating pump A and the control valve A is capable of guiding water in the water supply tower into the pit via the water supply pipeline and the pit water inlet groove. The electric automobile wading working condition simulation system is capable of really simulating the wading working condition test of the electric automobile by use of the facilities such as the main control computer, the simulation room, the simulation room, the water supply tower, the circulating pump and the control valve. The detection system is capable of conveniently controlling the wading depth of the electric automobile, the automobile speed and the water flow speed, and effectively realizing the wading simulation tests of multiple working conditions of the electric automobile.

The invention relates to preparation equipment, in particular to an efficient cement paste manufacturing device preventing cement paste from splashing. According to the technical problems to be solved, the cement paste preparation equipment for household building prepares cement cleanly and neatly. To solve the technical problems, the efficient cement paste manufacturing device preventing the cement paste from splashing comprises an installing frame, a frame body, a lifting device, a storing plate, a water tank, a water output pipe, a valve and the like. The frame body is arranged on the rightside of the inner bottom of the installing frame. A first through hole is formed in the lower portion of the right wall of the frame body. The lifting device is arranged on the inner lower portion ofthe frame body. The storing plate is arranged on the middle portion of the inner left wall of the installing frame. The water tank is arranged on the top of the storing plate. The water output pipe is arranged on the lower portion of the right wall of the water tank. The water output pipe is provided with the valve and connected with the upper portion of the left wall of the frame body. Accordingto the cement paste manufacturing device, a second through hole is formed in a stirring rod, the contact area of cement and water is enlarged, and the cement preparation speed is increased by means of cooperation of a first baffle and the water output pipe.

The invention relates to a treating technology for drinking water, particularly discloses the treating technology for mineralizing drinking water in cities and towns. The treating technology comprises the steps of activating treatment of water body, removal of pollutants from the water adopting physical way and a mineralized treatment process. According to the treating technology for mineralizing the drinking water in cities and towns, functional properties of a series of natural high quality ores are optimized and combined, mineralization of effluent quality is ensured, and water quality reaches the standard of natural active mineral water, and investment is small, operating cost is low, and the effluent quality is stable.

The invention discloses an experimental facility and an experimental method for researching influences of water flow to attachment, germination and growth of alga spores. The experimental facility comprises a flowing water circulating system, wherein the flowing water circulating system is provided with a flowing water environment simulating water tank, a flow collecting part, a circulating water tank, a water pump, a water pipe and a water tap; the water pump can be used for pumping liquid in the circulating water tank; a water outlet of the water pump is communicated with a water inlet of the water tap by the water pipe; the water tap is arranged over a water storage tank of the flowing water environment simulating water tank so that water flow which flows out of the water tap can sequentially pass through the water storage tank of the flowing water environment simulating water tank, a first water discharging gap, a flowing water tank, a second water discharging gap, the flow collecting part, the circulating water tank, the water pump and the water pipe to form circulation. The experimental facility disclosed by the invention can be used for controlling the speed of water flow in the flowing water tank so that the water flow in the flowing water tank is quite stable and easy to control, and has the advantages of being low in cost, small in floor space, simple and convenient in application method and capable of easily controlling the temperature and light illumination to be the same.