37 results about "Salt pond" patented technology

The present invention relates to a method for recovering valuable materials from waste. The method for recovering valuable materials from waste comprises the steps of: (a) pulverizing waste, which is generated from an evaporator or a crystallizer among equipment of a zero liquid discharge process for desulfurization wastewater, and then injecting same into a dissolution tank so as to dissolve same in a solvent and separating same into a gypsum (CaSO4) precipitate and a supernatant from which the gypsum has been removed; (b) dissolving, in a desulfurization tank, barium chloride (BaCl2) in the supernatant from which the gypsum has been removed, and separating same into a barium sulfate (BaSO4) precipitate and a supernatant from which the barium sulfate has been removed; (c) dissolving, in a hydroxide tank, sodium hydroxide (NaOH) in the supernatant from which the barium sulfate has been removed, and separating same into a magnesium hydroxide (Mg(OH)2 precipitate and a supernatant from which the magnesium hydroxide has been removed; and (d) injecting, into a salt pond, the supernatant from which the magnesium hydroxide has been removed, so as to recover sodium chloride (NaOH).

The invention discloses an inflatable salt pond plastic straw mat self-adaptive buoy chain with preset deflection, which belongs to the technical field of salt pond plastic straw mat retraction and release, and at least comprises a buoy chain formed by axially splicing two buoy monomers through a splicing mechanism; the buoy chain has preset deflection protruding towards the traction direction of the plastic straw mat under the state of no external force; an inflation sealing cavity is formed in each buoy single body. Traction connecting parts are arranged at the two ends of the buoy chain and used for being connected with a traction rope; a plastic cover fixing part is arranged on the buoy chain and used for being fixedly connected with a plastic cover; when the traction connecting part is pulled in the traction direction of the traction rope, the preset deflection is eliminated, so that the buoy chain tends to be in a linear state; and after the pulling force of the pulling rope is relieved, the buoy chain automatically recovers the preset deflection. Through the design of the preset deflection structure and the inflation sealing cavity, the buoy chain has the self-adaptive bending recovery capacity, so that the plastic straw mat collecting and releasing efficiency is improved, the wind and wave resistance is enhanced, and the service life is prolonged.

The application discloses a self-supporting fracturing fluid system prepared by using various natural salt water and application thereof, and provides a self-supporting fracturing fluid system for development of geological energy (in particular, oil and gas, geothermal energy and natural gas hydrate), which is not affected by ion concentration in seawater, salt lake water and surface water, has low requirement on water source, can be prepared by using various types and concentrations of mineralization water source at the same time, and can be directly prepared by using various surface water to prepare the self-supporting fracturing fluid system, so that the requirement of water source for fracturing technology in areas lacking fresh water is met.

The invention discloses an arc control method for a salt pond plastic carpet buoy chain, the buoy chain is formed by splicing a plurality of buoy monomers, and the method comprises the following steps: a preset arc design step: according to the total length L of the buoy chain and a preset target rise h0, calculating a target curvature radius R of the preset arc of the buoy chain in a state without external force; a traction and straightening control step: a radial tension F is applied to the buoy chain in the preset arc shape, and the tension F is configured to enable the shape of the buoy chain to tend to be linear from the arc shape so as to adapt to traction and coverage of the plastic straw mat; and a self-adaptive reset control step: releasing the radial tension F, and enabling the buoy chain to automatically recover to the preset arc by utilizing the structural restoring force of the buoy chain. By means of quantitative calculation and automatic control, accurate design and self-adaptive management of the arc shape of the salt pond plastic straw mat buoy chain are achieved, the salt pond plastic straw mat buoy chain can be efficiently straightened during traction and can automatically reset after force unloading, and therefore the reliability and efficiency of plastic straw mat retracting and releasing are improved.

The utility model relates to the technical field of caustic soda production, provides an automatic start-up system for a caustic soda process, and solves the problem of lack of full-flow automatic control on saline water and an electrolysis device in the prior art. The device comprises a saline water device, an electrolysis device and a control unit, wherein the control unit is in communication connection with equipment of the saline water device and the electrolysis device respectively; the brine device comprises: a crude brine refining module, which comprises a buffer pool, a crude brine pump and a clarification tank, the buffer pool is connected with an outlet of a salt dissolving pool, and the crude brine pump is interlocked with a liquid level sensor in the buffer pool and is used for conveying crude brine in the buffer pool to the clarification tank; the saline water filter is used for filtering saline water and is provided with a pH meter and an oxidation reduction potential (ORP) meter to adjust the pH value and the oxidation reduction potential; the saline water storage tank is used for storing qualified saline water; the automation of the driving process program is realized, and thousands of manual operations in the driving process are reduced.

The utility model provides a kind of real-time detection device for salt water concentration of salt pond, detection tube one end is connected with mass flowmeter, mass flowmeter is communicated with the water outlet of centrifugal pump, centrifugal pump water inlet is communicated with water inlet pipe, water inlet pipe lower end is close to salt pond bottom, water outlet pipe in water inlet pipe side is communicated with another end of detection tube, and the detection module of mass flowmeter is electrically connected with detection computer;Salt pond inside is also provided with pressure sensor and temperature sensor, and pressure sensor and temperature sensor are electrically connected with detection computer.Real-time monitoring function enables operator to find the change of salt water concentration in time, and quickly take adjustment measures, avoid the production interruption or product quality problem caused by abnormal salt water concentration.The automatic detection process reduces the workload of manual sampling and laboratory analysis, and reduces labor cost.

The utility model discloses a novel salt dissolving device, which belongs to the technical field of salt dissolving equipment and comprises a salt dissolving pond for containing water, a grid plate is arranged above the water surface of the salt dissolving pond, a bag breaking structure is arranged on the top surface of the grid plate, and a feeding hole is formed above the bag breaking structure; a spraying structure is arranged on the side of the bag breaking structure, and a stirring structure is arranged at the bottom of the salt dissolving pond. A snow-melting agent packaging bag is put onto the bag breaking structure through the feeding port, after the bag breaking structure cuts the bag, leaked snow-melting agents enter the salt dissolving pond through the grid plate, the snow-melting agents on the grid plate can be flushed into the salt dissolving pond by opening the spraying structure, and empty bags are left on the grid plate and are convenient to pick and take out; and then the stirring structure is started to fully melt the snow melting agent in the salt dissolving tank into water. The bag breaking and dumping device has the advantages of being simple in structure, reasonable in design and convenient and rapid to operate, bag breaking and dumping can be rapidly achieved, dumped packaging bags cannot fall into a salt dissolving pond, empty bags can be conveniently picked up, meanwhile, the salt dissolving speed can be increased, and application and popularization are convenient.

This invention provides a special repair adhesive for saltwater pond covering membranes, its preparation method, and its application, belonging to the field of saltwater pond covering membrane repair. The special repair adhesive for saltwater pond covering membranes comprises, from top to bottom, a PVC substrate, an adhesive layer, and a release film layer. The preparation method of the special repair adhesive for saltwater pond covering membranes includes the following steps: preparing a substrate reinforcement phase, preparing a PVC substrate, and composite molding. The special repair adhesive for saltwater pond covering membranes of this invention can meet the long-term use requirements of the harsh environment of saltwater ponds, has good compatibility with PVC covering membranes in saltwater ponds, and provides good adhesion and durability to PVC covering membranes. Simultaneously, the bonding performance between the substrate and the adhesive is good, the interface bonding is not prone to failure, and the adhesive has good durability, maintaining good bonding and repair performance for a long time in the harsh environment of saltwater ponds.

The invention discloses a plastic straw mat collecting and releasing device, and relates to the technical field of salt drying and salt manufacturing equipment. Comprising a floating lever, first traction ropes, second traction ropes and fourth traction ropes, the floating lever is connected with the two fourth traction ropes in the plastic straw mat opening direction, the two first traction ropes and the two second traction ropes are installed and connected in the plastic straw mat folding direction, and when the plastic straw mat is opened, the floating lever is dragged by the fourth traction ropes to move in the plastic straw mat opening direction. Double optimization of cost and space is achieved through structure optimization and flexible layout, in the aspect of equipment cost, the scheme abandons a huge reel which needs to be strictly matched with the size of a salt pond of traditional equipment, the design of scattered traction is adopted, core equipment only comprises a take-up roller, a traction rope and the like, in the aspect of site cost, the layout structure of the traction rope is compact, and the layout structure is compact. The take-up roller can be placed in parallel along the long edge of the salt pond so as not to affect road passage, and can also be placed in parallel along the short edge so that the motor can be away from high salt mist erosion of the salt pond.

The application discloses a passive depth measuring device, which comprises a supporting assembly and a depth measuring assembly. When depth measurement is needed, the depth measuring rod in the depth measuring assembly is released, the depth measuring rod rotates around the supporting assembly, the free end of the depth measuring rod enters into the salt mine brine and contacts the bottom of the salt pond. Since the length of the depth measuring rod is relatively long, the depth measuring rod is in an inclined state. An angle sensor can monitor the rotating angle of the depth measuring rod, and the depth of the salt layer can be obtained after calculation. When the water mining machine sails, the free end of the depth measuring rod contacts the bottom of the salt pond. When the convex and concave parts on the bottom of the salt pond are encountered, the depth measuring rod can be released after relatively large elastic deformation and restore the original shape. The rotating angle of the depth measuring rod is monitored by using the angle sensor, the depth of the salt layer can be monitored in real time, the problem that the non-contact sensor cannot measure due to the fact that there are many suspended matters in the salt lake and the surface is easy to be salted is solved, and the working reliability of the depth measuring device is improved.

This invention relates to the field of ion-exchange membrane caustic soda production technology, specifically to a water balance control system and control method for a primary brine refining unit. The system includes a water distribution tank, a brine pump, a salt dissolving tank, a baffle tank, an intermediate tank, an inorganic membrane filter, a salt mud tank, a primary brine tank, and a DCS control system. This invention achieves closed-loop automatic balance throughout the entire primary brine refining process, from salt dissolving to the delivery of qualified primary brine. It eliminates human error and delays, reduces production fluctuations and even accident risks caused by human error or untimely response, and ensures the stability of key parameters such as brine concentration and flow rate, providing high-quality and stable raw brine for subsequent electrolysis processes.

The utility model discloses a sodium hypochlorite generator inlet saline water standby filtering and pipeline device, which comprises U-shaped frames and a filtering assembly, a plurality of U-shaped frames are symmetrically arranged on the inner wall of a salt pond, connecting parts are arranged on the sides of the U-shaped frames, the filtering assembly comprises a fixed frame, limiting parts are symmetrically arranged on one side of the fixed frame, and the bottoms of the limiting parts are connected to inner cavities of the U-shaped frames in a penetrating manner. An intercepting net is arranged on the outer side of the fixing frame, supporting parts are arranged on the opposite sides of the U-shaped frame and located at the bottom of the fixing frame, and a feeding part is arranged at the bottom of the fixing frame; the fixing frame with the intercepting net arranged on the outer side in the filtering assembly is fixed to the U-shaped frame through the limiting part and the supporting part, raw material saline water is introduced into the intercepting net through the feeding part, foreign matter in the raw material saline water is intercepted through the intercepting net, and compared with the mode that a feeding pipeline is directly arranged at the bottom of a salt pond, the filtering effect is better; according to the design, undissolved salt and impurities are prevented from being accumulated due to gravity to block the feeding pipe, and the subsequent electrolysis operation of the salt pond is not influenced.

The application discloses a carbon dioxide generator and a mosquito trapping device, and belongs to the technical field of trapping insects. The carbon dioxide generator comprises an electrolysis chamber and a salt pool. The electrolysis chamber is internally provided with a cathode, an anode, an electrolyte and a gas-permeable hole belt. The anode is a platinum-plated titanium mesh, and the cathode is a solid titanium rod coated with a titanium nitride nano layer on the surface. The electrolyte is an oxalic acid solution. The salt pool is internally provided with a mechanical stirring device, a temperature control device and a supersaturated oxalic acid solution. The salt pool and the electrolysis chamber are connected through pipelines to form a closed loop circulation. The carbon dioxide generator provided by the application can be stably operated in a high-concentration oxalic acid electrolysis environment for a long time, and the cathode is resistant to hydrogen embrittlement and complex corrosion. The mosquito trapping device provided by the application has good mosquito trapping effect and is friendly to the environment.

This invention relates to the field of *Ulva prolifera* treatment technology, specifically to a *Ulva prolifera* desalination device. The device includes a desalination tank body for desalinating *Ulva prolifera*. Multiple fixed rings are equidistantly installed inside the desalination tank body, and a pusher plate is provided on the inner side of each fixed ring. Connecting frames are fixedly connected to the multiple pusher plates. A reciprocating lifting mechanism is installed on the outer side of the desalination tank body, and this mechanism connects to the connecting frames. Through holes are provided at the pusher plates, and water injection pipes slide through these holes. A freshwater inlet is installed at the bottom of the desalination tank body, and this freshwater inlet is connected to the multiple water injection pipes. This invention uses the reciprocating lifting mechanism to drive a net bag to generate periodic displacement and deformation, causing displacement compensation of the *Ulva prolifera* aggregated inside the net bag, breaking the concentration gradient balance formed under traditional static soaking. By utilizing "breathing" kinetic energy to forcibly replace the brine between the *Ulva prolifera*, the desalination cycle is shortened.

A salt dissolving device of a semi-dry salt bin comprises the semi-dry salt bin and a salt dissolving pond, and a salt discharging pipe is arranged on the side wall of the bottom of the semi-dry salt bin; the outer end of the salt discharging pipe is connected with a feeding port of a material suction pump, and a discharging port of the material suction pump is communicated with the salt dissolving pond through a pipeline. A first valve is arranged on the salt discharging pipe, and a second valve is arranged on the pipeline between the material suction pump and the salt dissolving tank; the salt dissolving tank is connected with a soft water inlet pipe, a flow-aiding pipe and a strong brine output pipe, and the outer end of the flow-aiding pipe is communicated with an inlet of the flow-aiding pump. According to the utility model, solid salt in the semi-dry salt bin is directly conveyed into the salt dissolving tank through the material suction pump; saline water is pumped from the salt dissolving tank through a flow aiding pump, pressurized and then conveyed to a salt discharging pipe, and friction resistance between solid salt particles and friction resistance between the solid salt particles and the side wall of a conveying pipeline are reduced through the saline water; and after the first valve is closed, saline water can still be conveyed to the semi-dry salt bin through the flow aiding pump, solid salt hardening is avoided, meanwhile, the material suction pump and a connecting pipeline thereof can be scoured, and solid salt is prevented from being accumulated in the material suction pump.

This invention discloses an intelligent salinity control method for salt-tolerant rice breeding based on a digital twin model, belonging to the field of salinity control technology in rice breeding. The method includes the following steps: constructing a digital twin model corresponding to a physical breeding salt pond; collecting data in real time and generating standardized feature vectors to drive the digital twin model; inputting the standardized feature vectors into the digital twin model to achieve state synchronization between the digital twin and the physical entity; outputting a predicted salinity value for a future time step based on the updated digital twin model and environmental data; calculating a control command for adjusting salinity based on a preset salinity target value, system state and total disturbance, and the predicted salinity value; and sending the control command to the physical actuator. This invention provides a quantifiable, predictable, and reproducible intelligent environmental management solution for salt-tolerant rice breeding, improving the accuracy and efficiency of breeding experiments.

The application provides a photovoltaic module test device and method considering salt pond environment, which is used to solve the problem that the installation angle, array spacing and relative position with the salt pond of the photovoltaic module cannot be adjusted and the salt pond environment corrosion cannot be effectively simulated in the prior art. The device comprises a simulation box, a photovoltaic module, an illumination module and a control module. The photovoltaic module comprises a first regulating part, two second regulating parts and two photovoltaic modules. The first regulating part is used to adjust the simultaneous and opposite movement of the two second regulating parts. The second regulating part is used to adjust the pitch angle of the photovoltaic module with the horizontal plane, the direction of the photovoltaic module and the relative position of the photovoltaic module with the water surface of the salt pond. The illumination module provides light energy. The control module is used to control the photovoltaic module and the illumination module, and obtain and process the power generation data of the photovoltaic module. The device can adjust the pitch angle, azimuth angle, height and array spacing of the photovoltaic module, and can effectively simulate the corrosion of the salt pond environment.

The utility model discloses a dipping salt pond for sorting crushed materials for plastic recovery, and relates to the technical field of battery plastic recovery. The device comprises a tank body, dipping frames, a tray and aeration assemblies, the movable tray is arranged at the inner bottom of the tank body, the three dipping frames which are sequentially stacked are arranged above the tray, limiting rods which are symmetrically distributed are fixed at the edges of the two ends of the top surface of the tray, and one aeration assembly is arranged in the horizontal direction of each dipping frame; the aeration assembly comprises a header pipe located on the outer side of the tank body, branch pipes distributed at equal intervals are fixed to the periphery of the header pipe in a penetrating mode, and the ends, away from the header pipe, of the branch pipes penetrate through the side wall of the tank body and are inserted into the impregnation frames corresponding to the branch pipes in height. Through the arrangement of the tank body, the aeration assembly, the dipping frame, the tray and the limiting rod, the problems that dipping and sorting cannot be carried out at the same time when crushed materials of battery plastics are recycled, the crushed materials are inconvenient to take out quickly after being dipped, and the crushed materials possibly float on the liquid level of the salt tank and cannot be fully soaked are solved.

An online salt preparation system comprises at least two water softeners, a concentrated salt water tank, a salt preparation tank and a finished salt water tank. According to the utility model, the plurality of water softeners are connected in parallel to supply soft water to the concentrated brine tank, so that the soft water can be continuously supplied to the concentrated brine tank; strong brine for regeneration of the water softener is directly sucked from the strong brine tank, so that the volume of the water softener is reduced; the electromagnetic valve is controlled through signal feedback of the salinity meter, so that the accurate control on the brine preparation concentration is realized, and the salt use amount is reduced; the entering volume of the strong brine in the salt preparation tank is controlled through the first liquid level meter, so that difficult dilution caused by excessive addition of the strong brine is avoided; the liquid level of the salt water prepared by the salt preparation pond is monitored through the first liquid level meter, when the liquid level is lower than a preset value, salt preparation operation is started, and sufficient supply of the salt water is guaranteed; and the salt water prepared in batches in the salt preparation pond is stored by utilizing the transfer storage function of the finished salt water pond, so that the finished salt water pond is ensured to continuously supply the salt water with stable concentration to the outside.

The invention discloses an automatic sewage disposal device of a salt dissolving tank baffling groove filter screen and a control method. The device comprises a salt dissolving tank, a filter screen plate, a lifting assembly, a translation assembly and a controller. The liquid level is detected through the magnetic float switch, a conventional / emergency cleaning program is triggered, the winch pulls the filter screen plate to be lifted to be separated from bottom magnetic attraction, and after the electromagnetic attraction plate adsorbs and fixes the filter screen plate, the rotating motor drives the lead screw to drive the filter screen plate to transversely move to cooperate with high-pressure reverse flushing of the water inlet pipe; after cleaning, the filter screen plate is reset, magnetically attracted and fixed, and the controller synchronously records parameters and monitors faults. According to the invention, automatic and precise decontamination is realized, continuous production is guaranteed, decontamination is thorough, operation is safe, different working conditions are adapted, operation and maintenance are convenient, and the problems of low decontamination efficiency, poor safety and the like in the prior art are effectively solved.

The utility model belongs to the salt dissolving technical field of regenerative salt, concretely relates to a salt dissolving device using regenerative salt, including salt dissolving pool, the inner side wall of salt dissolving pool is provided with two evenly distributed notches no. 1, the left side baffle of salt dissolving pool is provided with notch no. 2, the right side baffle of salt dissolving pool is provided with notch no. 3, the two baffle of salt dissolving pool is provided with production water pipeline, the right side of salt dissolving pool is provided with brine pipeline, the upper end of salt dissolving pool is contacted with the setting plate, the inner wall of setting plate is slidably connected with liquid level meter. The cooperation of production water pipeline, brine pipeline, salt dissolving pool and other structures can shunt and prolong the residence time of regenerative salt in salt dissolving pool, and can dissolve regenerative salt particles, avoid the blockage problem of brine refining system, and further improve the use amount of regenerative salt, increase the diversity of raw salt selection of brine refining system.

The salt dissolving pond comprises a cylindrical salt dissolving tank, the salt dissolving tank is connected with a filtering pond, a water inlet pipe is arranged in the salt dissolving tank, the top of the water inlet pipe extends out of the salt dissolving tank, the bottom of the water inlet pipe is connected with a plurality of water distribution pipes distributed in an annular array, and pipe openings of the water distribution pipes are all arranged in the anticlockwise or clockwise direction. And the pipe orifices of the plurality of water distribution pipes are parallel to the tangential direction of the adjacent side walls of the salt dissolving tank. The salt dissolving device has the advantages that a stirring device does not need to be arranged, and the equipment cost is reduced.

The invention provides a repair adhesive tape special for a salt pond covering film, a preparation method and application thereof, and belongs to the field of salt pond covering film repair. The special repair adhesive sticker for the salt pond covering film is sequentially provided with a PVC (polyvinyl chloride) base material, an adhesive layer and a release film layer from top to bottom, the preparation method of the special repair adhesive sticker for the salt pond covering film comprises the following steps: preparing the base material reinforced phase, preparing the PVC base material, and carrying out composite molding. The repair adhesive special for the salt pond covering film can meet the long-term use requirement of a salt pond in a severe environment, is good in matching performance with a PVC covering film of the salt pond, and is good in bonding effect and bonding durability on the PVC covering film; meanwhile, the bonding performance of the base material of the adhesive sticker and the mucilage glue is good, interface bonding is not prone to losing efficacy, the durability of the adhesive sticker is good, and good sticking and repairing performance can be kept for a long time in the severe environment of the salt pond.

The invention discloses a salt pond plastic straw mat take-up and pay-off system and a control method. The system comprises a plastic straw mat take-up unit, a traction unit, a self-adaptive buoy chain and a control cabinet. The plastic straw mat winding unit is arranged at one end of the salt pond and comprises a floating winding shaft and a first driving mechanism. The traction unit comprises at least two traction winches arranged on the cofferdam and traction ropes of the traction winches. The head end of the self-adaptive buoy chain is connected with the traction rope, the tail end of the self-adaptive buoy chain is fixedly provided with the plastic straw mat, the self-adaptive buoy chain is formed by axially splicing a plurality of buoy single bodies and has preset deflection protruding in the traction direction when no external force exists, and inflation sealing cavities are formed in the single bodies. A tension sensing module, a position detection module and a controller are arranged in the control cabinet; and the controller is configured to control the traction winch and the first driving mechanism to operate synchronously during unfolding or folding, and dynamically adjust the output of the driving mechanism based on real-time tension feedback, so that the tension is maintained in a preset constant range. The stability, the reliability and the automation level of folding and unfolding operation are effectively improved.

The present application relates to salt-containing wastewater treatment technical field, and is a kind of ion exchange salt water preparation process and device for salt-containing wastewater treatment, in the former, according to the height of conductivity value, salt-containing wastewater from ion exchange salt water preparation process is classified and collected to the regeneration of anion bed and cation bed, and the low-salt wastewater after classification and collection is recycled for raw water device or circulating water device water replenishment;After a series of hardness removal and ion separation, high-salt wastewater is obtained to obtain chlorine-containing light salt water, and then reused;The latter includes cation bed, anion bed, high-salt wastewater tank, hardness removal reaction tank, ultrafiltration filter, ion exchange column, nanofiltration separation facility, salt tank, and conductivity meter is respectively fixedly arranged on the salt-containing wastewater pipeline of cation bed and anion bed outlet, first salt-containing wastewater pipeline and chlorine-containing light salt water pipeline of salt tank inlet.The present application is carried out at normal temperature, and only a small amount of reagent and electric power is consumed, so that the effect of salt-containing wastewater classification and collection treatment can be achieved.

The utility model discloses an automatic salt adding device for a softened water salt pond, which comprises a bracket, and a salt adding component is arranged in the bracket and is used for automatically adding salt into the salt pond; the moving assembly is arranged on the bracket and the salting assembly and is used for driving the salting assembly to move; the salt adding assembly comprises a cylinder body, the cylinder body is arranged on the moving assembly, a supporting plate is fixedly connected in the cylinder body, a plurality of leaking holes are formed in the supporting plate, and a funnel is fixedly connected to the bottom of the cylinder body; and the first motor is fixedly connected to the top of the barrel, the driving end of the first motor extends into the barrel and is fixedly connected with a rotating rod, and the bottom end of the rotating rod is rotationally connected to the supporting plate. According to the device disclosed by the utility model, by arranging the salt adding assembly, a salt material is uniformly sprayed, the problem of insufficient reaction is avoided, and by arranging the moving assembly, the device can be moved right above a salt pond for uniformly adding materials.

The invention provides a salt lake self-flow air pressure water diversion system and method. The water diversion system comprises a self-flowing pipe, a water collecting well, an air pump, a water storage well and a control system, the top face of the water collecting well is lower than the water surface of the salt lake, one end of the self-flowing pipe is immersed in the salt lake, the other end of the self-flowing pipe turns over the embankment of the salt lake and extends into the water collecting well, and the water inlet end, located in the salt lake, of the self-flowing pipe is higher than the water outlet end located in the water collecting well. An electric cut-off valve is arranged on an inlet of the self-flowing pipe; the air pump is used for injecting high-pressure gas into the water-collecting well or extracting gas from the water-collecting well; the bottom surface of the water storage well is higher than the water surface of the salt drying pond, the water collecting well is communicated with the top of the water storage well through a water guide pipe, a water conveying pipe leading to the salt drying pond is arranged at the bottom of the water storage well, and an outlet electric water stop valve is arranged on the water guide pipe. Brine is extracted according to the low-liquid-level water self-flowing principle and the high-pressure air water pressing principle, a water pump is not used for pumping, pump blades are prevented from making contact with brine crystals, then pump faults are reduced, the water pumping cost is reduced, and the water pumping efficiency is improved.

The utility model provides a photovoltaic transport ship used on a salt pond, which belongs to the field of photovoltaic technology and comprises a transport ship, a loading assembly is arranged on the transport ship and comprises placing plates, a plurality of isolation frames and a plurality of supporting columns, the placing plates are symmetrically mounted on the transport ship, and the supporting columns are horizontally and fixedly mounted on the placing plates through mounting blocks. The axes of the supporting columns are parallel to the width direction of the containing plate, the multiple supporting columns are arranged in the length direction of the containing plate, the supporting columns are linearly sleeved with a plurality of rolling rings arranged in a rolling mode in the axis direction, the rolling rings are arranged at intervals and evenly distributed, and the isolation frame is vertically erected on the containing plate in the length direction of the containing plate. A placing groove used for vertically placing the photovoltaic panel is formed between every two adjacent isolation frames, and the bottom of each placing groove is provided with a rolling ring. When the photovoltaic panel loading device is used, the loaded photovoltaic panel can be quickly transported to the position, where the photovoltaic panel needs to be installed, in the salt pond, and the installation efficiency is improved.

The application relates to the technical field of isothermal quenching nodular cast iron, in particular to an isothermal salt bath for producing isothermal quenching nodular cast iron material, which comprises a salt bath body, an annular liquid inlet pipe assembly, an annular liquid return pipe assembly, a stirring mechanism, a water pump, a heater and a cooling box; the stirring mechanism is arranged on the salt bath body; the annular liquid inlet pipe assembly and the annular liquid return pipe assembly are arranged in the salt bath body, and the annular liquid inlet pipe assembly is located above the annular liquid return pipe assembly; the cooling box is provided with a cooling box water outlet pipe and a cooling box water inlet pipe, the cooling box water outlet pipe is communicated with the annular liquid return pipe assembly, and the cooling box water inlet pipe is communicated with the annular liquid inlet pipe assembly; the water pump is arranged on the cooling box water outlet pipe; and the heater is arranged at the bottom of the salt bath body. The application has the advantages that when quenching, the nitrate salt solution is subjected to circulating cooling and temperature reduction through the water inlet pipe and the water outlet pipe, and the nitrate salt solution is stirred by the stirring rod, so that the overall temperature is more uniform.