21results about How to "Improve precipitation efficiency" patented technology

The invention relates to the technical field of evaporative crystallization, in particular to a potassium chloride solution evaporative crystallization device. Comprising an equipment frame; a bottom plate is fixedly mounted on the equipment frame, and an evaporation mechanism is arranged on the bottom plate; according to the evaporation mechanism disclosed by the invention, the separation part is used for stirring in the evaporation process of the potassium chloride solution so as to improve the precipitation efficiency of crystals, and meanwhile, the precipitated crystals can be filtered to the drying part in time, so that the crystals are effectively prevented from being excessively increased in the evaporation barrel, the flowability of the solution is kept, and the stirring and heating uniformity is also ensured; the problem that the mixing efficiency is reduced due to increase of the crystals is avoided, and the crystals in the drying part are heated and pre-dried through the suction part by utilizing steam heat generated by evaporating the potassium chloride solution, so that the utilization rate of energy is increased.

The invention relates to a purification method and purification equipment for calcium dobesilate, and the purification equipment comprises a kettle body, a filter screen; an activated carbon layer; the middle shaft and the partition plate are arranged in a synchronous lifting mode in the axial direction of the middle shaft; the upper stirring blade and the lower stirring blade are rotationally arranged together with the middle shaft; the multiple disturbance rods penetrate through the partition plate, and the multiple disturbance rods surround the periphery of the stirring area of the upper stirring blade; a driving mechanism for driving the middle shaft to drive the upper stirring blades to synchronously rotate and a lifting mechanism for driving the middle shaft to drive the partition plate to synchronously lift are arranged outside the kettle body. Dissolution, adsorption, filtration, crystallization and discharging procedures in a calcium dobesilate purification process can be realized in only one kettle body, an intermediate product does not need to be transferred in the process of joining all the procedures, the purification efficiency can be improved, and by means of control over uniform temperature drop in the crystallization procedure, the purification efficiency can be improved. The particle size consistency of precipitated calcium dobesilate crystals can be improved, so that the purification quality is improved.

The invention relates to a diaphragm stacked type continuous cooling crystallizer which is provided with a crystallization kettle, the crystallization kettle comprises an upper kettle body, a lower kettle body and a middle kettle body, the middle kettle body comprises at least one connecting kettle, a feeding pipe is arranged on the upper kettle body, a discharging pipe is arranged on the lower kettle body, a driving motor is further arranged on the upper kettle body, and a driving shaft is arranged in the crystallization kettle. Membrane frames are arranged in the upper kettle body, all the connecting kettles and the lower kettle body, all the membrane frames are installed on a driving shaft, jackets are arranged on the outer walls of the upper kettle body, all the connecting kettles and the lower kettle body, first liquid inlet pipes and first liquid outlet pipes are arranged on the jackets, butt joint heat exchange flanges are arranged between the middle kettle body and the upper kettle body and between all the connecting kettles, and the butt joint heat exchange flanges are connected with the middle kettle body. A heat exchange cavity is formed in the butt joint heat exchange flange, a second liquid inlet pipe and a second liquid outlet pipe are arranged on the butt joint heat exchange flange, the upper end of the middle kettle body is in sealed connection with the upper kettle body, the connecting kettles are in sealed connection, and the middle kettle body is in sealed connection with the lower kettle body. The device is ingenious in structure, good in universality, convenient to use and practical.

The invention discloses a heating combined vacuum well point foundation pit dewatering system and a using method thereof, and belongs to the technical field of engineering construction.The heating combined vacuum well point foundation pit dewatering system comprises a foundation pit area formed by surrounding a natural ground, and soil body heating units are annularly arranged on the periphery of the foundation pit area at intervals; the soil body heating unit is provided with a heating element for heating a soil body which is not less than the depth of the foundation pit; well point dewatering units are arranged on the periphery of the foundation pit area in the circumferential direction at intervals and located on the outer side of the soil body heating unit. According to the system, the water permeability of the low-permeability soil layer is improved through heating, the precipitation efficiency is remarkably improved, the period is shortened, different foundation pit requirements are met, precipitation rate control and energy consumption optimization are achieved by optimizing the vacuum degree and the heating temperature, and therefore the construction cost is reduced, and the overall construction efficiency is improved.

The utility model discloses a device for preventing a biomass dry distillation pipeline from being blocked, which comprises a separating tower and a spraying tank, three layers of spraying components are arranged at the upper part of an inner cavity of the separating tower, and the spraying components are connected with the bottom of an inner cavity of the spraying tank through a pipeline; the bottom of the inner cavity of the separation tower is connected with the wood tar storage tank through a pipeline; one side of the bottom side of the inner cavity of the separation tower is connected with the top of the inner cavity of the spraying tank through a communicating pipe; a gas phase outlet in the top of the inner cavity of the separation tower is communicated with the bottom end of a condensation straight pipe through a pipeline, and the condensation straight pipe is fixedly connected to the top of the inner cavity of the spraying tank in the vertical direction; a spiral heat exchange pipe is wound on the outer portion of a main body of the condensation straight pipe, and a spiral clamping cavity is formed between the spiral heat exchange pipe and the outer wall of the condensation straight pipe. According to the device, mixed gas can be effectively cooled through three-layer spraying washing, wood tar precipitation and wood vinegar collection are accelerated, the production efficiency can be improved, pipeline blockage is reduced, and the production cost is reduced.

The construction method comprises the following steps that when a foundation pit is excavated, temporary drainage ditches and water-collecting wells are arranged, the drainage ditches are arranged on the periphery of the bottom of the foundation pit, one water-collecting well is arranged at each corner of the drainage ditches, and drainage pumps are arranged in the water-collecting wells to pump and drain water; after excavation of the slope of the foundation pit is completed, an intercepting ditch and a top drainage well are arranged at the top of the foundation pit; the drainage ditches and the water collecting wells are staggered in the width direction; auxiliary drainage wells are excavated at the corners of the drainage ditches, auxiliary drainage pumps are arranged in the auxiliary drainage wells, and the auxiliary drainage wells are communicated with the parts, outside the distribution range of the water collecting wells, of the drainage ditches; continuously pumping water during the construction period of the inner side of the foundation pit until the dead weight of the building is greater than the buoyancy generated by underground water. The problem that existing foundation pit surface drainage precipitation is insufficient in drainage capacity when coping with working conditions such as heavy rainfall can be solved.

A spider net folding type vacuum dewatering device for an extremely strong permeable stratum comprises a spider net type centralizing tower, a rod piece, a spider net dewatering mechanism, a high-pressure pipe, a vacuum plunger pump and a reservoir, the spider net type centralizing tower, the vacuum plunger pump and the reservoir are located on the surface of a water-rich stratum, the rod piece is installed on the spider net type centralizing tower in a liftable mode, and the high-pressure pipe is installed on the spider net type centralizing tower. The lower end of the high-pressure pipe extends into an inner cavity of the rod piece, the upper end of the high-pressure pipe is communicated with a reservoir through a vacuum plunger pump, and the lower end of the rod piece is provided with the spider net dewatering mechanism. Water in the stratum can be effectively pumped out in the stratum with extremely high water permeability, and the precipitation efficiency is improved.

This invention provides an ultra-high strength, low density Al-Mg-Zn-Sc-Zr-based alloy and its preparation method, belonging to the field of aluminum alloy material technology. The ultra-high strength, low density Al-Mg-Zn-Sc-Zr-based alloy provided by this invention, by mass fraction, has the following chemical composition: Mg 3.0~8.0%, Zn 1.0~5.0%, Cu 0.4~1.0%, Mn 0.1~0.8%, Ag 0.05~0.3%, Sc 0.01%~0.3%, Zr 0.05~0.3%, with the balance being Al. This invention achieves this by precisely controlling the elemental ratios of Mg, Zn, Cu, and Ag, resulting in an alloy that maintains its low density while exhibiting a strong age-hardening effect. Simultaneously, the reasonable addition of trace elements such as Mn, Sc, and Zr enables the alloy to possess a dispersion strengthening effect. Combined with heat treatment and hot deformation processes, this further improves the strength and ductility of the aluminum alloy.

A grain storage device integrating natural ventilation and solar-driven ventilation, comprising a grain storage bin, a solar photovoltaic power generation system and a ventilation system; the grain storage bin is a square three-dimensional structure, the four sides and the bottom of the square three-dimensional structure are composed of mesh panels made of metal woven mesh, and the upper opening is connected to the bin roof; the grain storage bin is divided into two left and right storage bins by a ventilation duct arranged in the middle; the bin roof includes a "human" shaped sunlight panel; the ventilation system includes an axial flow fan and a control alarm unit, when the detected temperature and humidity are greater than the set threshold, the alarm is triggered, and the fan is controlled to start through the control module to realize the switching between natural ventilation and forced ventilation of the air duct. The solar photovoltaic power generation system is arranged next to the grain storage bin to provide the required power for the grain storage device. The device adopts a cross-flow ventilation structure for the entire bin, which saves drying costs and improves the space utilization rate of the bin.

The invention provides a black soybean oil extractor and an extraction method, comprising a mounting frame, on which an oil pressing cylinder with a protective cylinder on the outer side is fixed, one end of the protective cylinder is provided with a hopper which is connected with the inner space of the oil pressing cylinder for supplying oil, the oil pressing cylinder is driven by a driving wheel on one side and is connected with a driving motor for transmission, a negative pressure mechanism is fixed on the outer side of the oil pressing cylinder, a negative pressure environment is formed on the outer side of the oil pressing cylinder to actively extract the oil, an active pressurizing mechanism is also provided on one side of the oil pressing cylinder, which is connected with the inner side of the oil pressing cylinder to form a high-pressure environment on the inner side of the oil pressing cylinder, a guide plate is provided on the mounting frame at the lower side of the negative pressure mechanism to collect the oil, and a slag frame is provided at the tail end of the oil pressing cylinder to collect the waste slag, the invention forms a pressure difference between the inner and outer sides through the negative pressure mechanism on the outer side of the oil pressing cylinder and the active pressurizing mechanism at one end, drives the oil between the bean dregs to flow and precipitate, improves the oil yield of black beans, and has good development prospects.

The utility model relates to the field of foundation pit dewatering, and discloses a dewatering treatment device for foundation pit construction, which comprises a mounting bracket, a drainage connecting pipe is fixedly mounted on the top surface of the mounting bracket in a penetrating manner, a circular fixing ring is fixedly mounted on the bottom surface of the mounting bracket, and a bearing is fixedly mounted on the bottom surface of the circular fixing ring. A waterproof motor drives a gear, an outer gear ring, a circular connecting block and a filter cartridge to rotate, so that an arc-shaped guide plate on the outer surface of the filter cartridge guides sand and impurities downwards along the surface of the filter cartridge, the sand and the impurities are gradually brought to the bottom of the filter cartridge, and under the action of a conical guide head at the bottom of the filter cartridge, the sand and the impurities are further gathered and deposited; in this way, gravel and impurities can be conveniently guided to the bottom of the filter cylinder, it can be effectively prevented that the gravel and the impurities are accumulated to block the filter cylinder, the problem that the gravel and the impurities block the surface of the filter cylinder, and consequently the filter cylinder is blocked is solved, it is guaranteed that accumulated water in the foundation pit is discharged more smoothly, and the dewatering efficiency in the foundation pit is improved.

The invention relates to the technical field of foundation pit construction, in particular to a pipe-in-pipe double-layer filter material artesian well dewatering structure and a construction method.The pipe-in-pipe double-layer filter material artesian well dewatering structure comprises a first filter pipe, a second filter pipe, a first filter material layer and a second filter material layer, first water permeable holes are formed in the first filter pipe at intervals, and second water permeable holes are formed in the second filter pipe at intervals; the periphery of the second filter pipe is sleeved with the first filter pipe, an avoiding distance is formed between the first filter pipe and the side wall of the precipitation drill hole, the space between the side wall of the precipitation drill hole and the first filter pipe is filled with the first filter material layer, an avoiding distance is formed between the first filter pipe and the second filter pipe, and the space between the first filter pipe and the second filter pipe is filled with the second filter material layer; the diameter of the coarse filter material of the first filter material layer is greater than that of the fine filter material of the second filter material layer. According to the invention, surrounding underground water is in contact with the coarse filter material in the first filter material layer and the fine filter material in the second filter material layer in sequence; therefore, the condition that soil particles are deposited in the precipitation drilling well is reduced, and the foundation pit precipitation effect is improved.

The present invention discloses an acidification device for the preparation of activated carbon, which relates to the technical field of the preparation of activated carbon, and comprises a placing cylinder, wherein a collecting cylinder for collecting impurities is fixedly connected to the lower part of the placing cylinder, and the collecting cylinder is connected to an acidification cylinder for acidification reaction of activated carbon by a disassembly method, and a turbine pump is installed in the collecting cylinder. The present invention adopts a method in which the acidification cylinder rotates itself to discharge the precipitated impurities, and cooperates with a turbine pump to promote the circulation of acid liquid. Compared with the direct mechanical stirring method, the granular activated carbon can be treated more gently, which not only improves the efficiency of impurity precipitation, but also reduces the risk of damage to the activated carbon structure, and takes into account both efficient impurity removal and structural protection. In the case of no direct external force stirring, the fluidity between the acid liquid and the activated carbon particles is accelerated by the principle of fluid dynamics, which not only ensures the effect of acidification regeneration, but also maintains the structural morphology of the activated carbon, which is beneficial to its long-term performance and recycling.

The application discloses an oral care toothpaste containing snake lily original medicinal material powder and a preparation method thereof, and belongs to the oral care preparation field. The core innovation is that the snake lily original medicinal material superfine powder prepared by a specific process is used as a core component, and a plurality of auxiliary materials are compounded to form a synergistic system, so that the effects of analgesia, anti-inflammation, caries prevention and anti-allergy are achieved; the snake lily original medicinal powder is treated through raw material screening, vinegar preparation detoxification, superfine crushing and multi-step coating embedding process, so that the toxicity and bitterness are effectively reduced, and the active component extraction efficiency is improved. The application solves the problems of the existing anti-inflammatory and analgesic toothpaste, such as large side effects and limited effects, and provides a new scheme for oral care.

The invention discloses a municipal working well dewatering construction structure and a construction method. The construction structure comprises a precipitation well, a precipitation pipe is arranged in the precipitation well, a filter material is arranged between the precipitation pipe and the well wall of the precipitation well, the precipitation pipe comprises a well wall pipe and a filter pipe, filter holes are formed in the pipe wall of the filter pipe, the periphery of the filter pipe is covered with a filter screen, and a water pump located at the bottom of the precipitation pipe is arranged in the precipitation well during precipitation. And the dewatering well is filled with a plugging material after dewatering. Aiming at the construction structure, the construction method comprises the following steps: measuring a well position; burying a mouth protecting pipe; installing a drilling machine; drilling to form a hole; cleaning holes and changing slurry; a descending water pipe; filling a filter material; washing the well; carrying out rainfall trial operation; formal precipitation; and sealing the well. The precipitation well has the beneficial effects that the precipitation well is simple in structure, high in precipitation efficiency, high in adaptability and suitable for precipitation construction in a complex environment; the mouth protection pipe is embedded and cohesive soil outside the pipe is filled and sealed tightly, so that grout return outside the pipe during construction is effectively prevented; the dewatering well operates stably and reliably.

The utility model is suitable for the technical field of dewatering equipment, and provides a vacuum dewatering and drainage device which comprises a pressing plate, a vertical pipe used for dewatering a soft soil foundation is arranged on the pressing plate, and water seepage holes are formed in the vertical pipe. The cover body is arranged on the vertical pipe, a shell is fixedly mounted on the cover body, a discharge pipe is fixedly mounted on the shell, a hose is fixedly mounted on the discharge pipe, and a water-gas dual-purpose pump is fixedly mounted at one end of the hose; and the pulling mechanism is assembled on the shell and is used for lifting the water-gas dual-purpose pump. According to the vacuum dewatering and drainage device, the technical problems that an existing dewatering well is low in dewatering efficiency, and the construction progress is affected are solved.

The invention discloses a sand, gravel and mudstone composite stratum dewatering system and method.The system comprises a water collecting well, a dewatering well and a working well, and the water collecting well, the dewatering well and the working well are arranged on the periphery of a foundation pit; the water-collecting well, the water-collecting pipe and the dewatering well form a combined drainage structure; a water collecting pipe is arranged between the water collecting well and the working well; the well depth of the water collecting well is deeper than that of the working well, and the water collecting well is also used as a pumping well; one end of the water collecting pipe is connected with the working well, the other end of the water collecting pipe is connected with the water collecting well, and the end of the water collecting pipe connected with the working well is higher than the end of the water collecting well. According to the drainage system, the water collecting well, the water collecting pipe and the dewatering well are jointly used, the dewatering efficiency is remarkably improved, and the underground water level around the foundation pit is effectively lowered. The dewatering well is located between the water collecting well and the working well, the water filter pipe is used for dewatering, impurities in underground water are effectively filtered, and system blockage is avoided. And the wall protecting pipe is introduced, so that the water filtering pipe is protected, and the service life of the whole dewatering system is prolonged.

This utility model provides an animal carcass oil residue separation device, relating to the field of oil residue separation technology. It includes an oil residue separation box, with a motor mounting bracket fixedly connected to the bottom. By setting up the oil residue separation box, motor mounting bracket, and bottom support frame, and through the cooperation of a heating block and an internal heating cylinder, the material is uniformly heated, causing the oil in the animal tissue to melt and precipitate. This waste gas can be connected to an external recovery pipeline for condensation, purification, and other treatments, avoiding environmental pollution and energy loss caused by direct emissions. Limit bearing seats and positioning bolts ensure smooth operation of the drive shaft. This utility model improves the efficiency and oil yield of primary separation by combining internal heating with mechanical stirring and crushing, achieving automated material transfer. Fine grading of solid residue is achieved through rotary centrifugal screening. The inclusion of waste gas recovery and safety pressure relief functions makes the entire process more efficient and safer.

The invention discloses a positive and negative pressure combined dewatering structure for a long and narrow foundation pit of a reclamation stratum and a construction method, and relates to the technical field of foundation pit construction, the positive and negative pressure combined dewatering structure comprises a to-be-constructed foundation pit and deep soil located below the to-be-constructed foundation pit, and a waterproof curtain is arranged in the circumferential direction of the to-be-constructed foundation pit and vertically penetrates through the to-be-constructed foundation pit to be inserted into the deep soil; a plurality of sets of positive pressure precipitation mechanisms are arranged in the foundation pit to be constructed, a plurality of sets of negative pressure precipitation mechanisms are arranged among the multiple sets of positive pressure precipitation mechanisms, each set of positive pressure precipitation mechanism and the corresponding negative pressure precipitation mechanism are alternately arranged, and through cooperation of the positive pressure precipitation mechanisms and the negative pressure precipitation mechanisms, the precipitation work efficiency is improved.

The utility model discloses a full-length filter pipe dewatering well vacuum device, which comprises a well body, a cover body, flange plates, a filter pipe, a filter material, a mounting hole, a mounting bolt, a mounting seat and a sealing ring, the cover body is arranged on the upper side of the well body, a plurality of flange plates are arranged in the well body, the flange plates are distributed at equal intervals, and the sealing ring is arranged on the cover body. The flange plates are arranged on the well body, water filter pipes are arranged at the positions, corresponding to the flange plates, of the well body, the size of the water filter pipes is matched with that of the well body, filter materials are arranged at the positions, corresponding to the water filter pipes, of the well body, a supporting plate is arranged on the side, away from the cover body, of the well body, and the size of the supporting plate is matched with that of the well body. Fixing rods are arranged at the positions, connected with the water filtering pipe, of the flange plates. Through the water filtering pipe, the water seepage contact area is increased, the rainfall efficiency of river beach soil can be improved, the earth excavation time is shortened, and the construction period is shortened.

The invention provides an on-line purging-proton transfer reaction time-of-flight mass spectrometry system for detecting volatile organic compounds in water, which comprises an inert carrier gas source, an on-line purging automatic sampling device, a four-way joint and a proton transfer reaction time-of-flight mass spectrometer, the three-way valve is respectively connected with a first mass flow controller and a second mass flow controller; the gas inlet end of the on-line purging automatic sampling device is connected with the first mass flow controller; the four-way connector is respectively connected with the on-line purging automatic sampling device, the second mass flow controller, and the atmosphere and the proton transfer reaction time-of-flight mass spectrometer. According to the device, inert carrier gas is in full contact with a liquid sample through the on-line purging automatic sampling device, the precipitation efficiency of volatile or semi-volatile organic compounds is improved, complex pretreatment and chromatographic separation are not needed, the sample is directly subjected to soft ionization detection after being purged, the analysis time is remarkably shortened, and the operation and maintenance cost is greatly reduced.