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316results about How to "Improve governance efficiency" patented technology

Wind pressure air drilling equipment in downhole soft outbursting coal bed and process matched therewith

The invention relates to wind pressure air drilling equipment in a downhole soft outbursting coal bed and a process matched therewith. At present, as the consequent layer drilling characterized by high construction speed, low cost and high gas extraction efficiency becomes the primary option for coal control and gas control in coal mines, for soft outbursting coal beds, the gas extraction efficiency is directly dependant upon the pore-forming rate of the consequent layer drilling. The equipment comprises a boring machine, an air compressor, an orifice dust collection and dust removal device, a high-strength large through-hole drill rod, a drill bit with an inner core which can automatically fall off, and an antistatic explosion-protection PVC sieve tube; the boring machine which has large power and large torque supplies power to drilling construction; the orifice dust collection and dust removal device collects and eliminates slack carried out by wind from the orifice during drilling; and the antistatic explosion-protection PVC sieve tube is transferred from the interior of the high-strength large through-hole drill rod to the bottom of the orifice without lifting a drill on the completion of drilling, and at last remains in the orifice, thereby ensuring the completeness of drilling. The equipment and the process matched therewith provided by the invention has the advantages of increasing the pore-forming rate of the consequent layer drilling in soft outbursting coal beds, improving the effect of gas extraction, improving the working atmosphere of downhole air drilling, and protecting the production safety of outbursting coal mines.
Owner:XIAN RES INST OF CHINA COAL TECH& ENG GROUP CORP

Method and device for utilizing microorganism in-situ circulation cultivation to treat water body pollution

The invention discloses a method for utilizing microorganism in-situ circulation cultivation to treat water body pollution, (1) riverway sewage is utilized to be in-situ cultured, circulated, acclimatized and separated microorganisms out in a culture tank and an biological generator for being put into a water body, and the water body pollution is removed through microorganism absorption, decomposition and transfer; (2) an aerating device is adopted to aerate and provide a good environment for the culture tank, the biological generator and the riverway water body; and (3) a mixer is adopted to stir water sediment, so the pollutant of the sediment enters the water to be utilized by the microorganisms, and the ecological dredging is realized. The invention further discloses a device which is adopted by the method. The method takes nutrients in the reverway sewage as a strain medium, the microorganism environment is improved through aeration and stirring, the added foreign bacterium is more applicable to the water body, is mass propagated and has strong decomposition capacity, so the excellent speed is improved, the source is stable, the purposes of high efficiency, continuity, thoroughness and low cost are realized, meanwhile, the device has strong movability, is convenient to install and dismantle, and has a wide application scope.
Owner:浙江天韵生态环境工程有限公司

Municipal green belt soil remediation device

The invention discloses a municipal green belt soil remediation device. A semi-conical gear is fixedly connected to the lower end of a driving shaft. The lower end of the semi-conical gear is meshed with a bevel gear, two ends of the bidirectional screw rod are respectively in threaded connection with threaded sleeve blocks, the lower ends of the threaded sleeve blocks are rotationally connected with the upper portion of a connecting rod, the lower portion of the connecting rod is rotationally connected with the upper surface of a pressing plate, the right end of the pressing plate is slidablyconnected with a guide groove, the left end of the pressing plate is fixedly connected with a partition, the partition is slidably connected with a guide rail, and the guide rail is fixedly connectedwith the inner wall of the left end of a device body. The bidirectional screw rod is driven by the semi-conical gear to do reciprocating positive and negative rotation so as to drive the pressing plate to move up and down to grind and crush soil and soil disinfectant, a sieve plate is driven by a driven crankshaft to do reciprocating left and right movement to mix and screen mixture of the soil and the soil disinfectant while the soil and the soil disinfectant are ground and crushed, and a moving trolley drives a fixing plate to do reciprocating left and right movement to achieve intermittentdischarging. The municipal green belt soil remediation device is reasonable and suitable in structural design, greatly improves the soil remediation efficiency of municipal green belts, facilitates environmental protection, and improves urban images.
Owner:黑龙江丰正绿化建设集团有限公司

Method of using native function microflora to in-situ purify ground water polluted by uranium

The invention relates to a method of using native function microflora to in-situ purify ground water polluted by uranium. The method translates transferable hexavalent uranium into nontransferable uranous uranium in the ground water through nitrate reducing bacteria flora, ferric iron reducing bacteria flora and sulfate reducing bacteria flora which are formed under the anaerobic condition by microorganism, and therefore the purpose of purifying the ground water polluted by the uranium is achieved. The specific implementation method comprises: (1) adjusting a potential of hydrogen (Ph) value of the ground water polluted by the uranium; (2) activating the microorganism in sediments; (3) regulating and controlling variation of the microflora, accelerating evolution of the nitrate reducing bacteria flora, the ferric iron reducing bacteria flora and the sulfate reducing bacteria flora by means of adding a carbon source, regulating oxidation reduction potential of the water polluted by the uranium and the like; (4) continuously regulating and controlling the microbial flora until uranium concentration in the ground water polluted by the uranium is reduced below the national emission standard and the purpose of purifying the groundwater polluted by the uranium is achieved. The method of using the native function microflora to in-situ purify the ground water polluted by the uranium solves in-situ purifying problem of the ground water polluted by the uranium, and has the advantages of being high in purifying efficient, short in period, simple in equipment, short in process procedure, low in purifying cost, strong in operability, free of secondary pollution, good in purifying effect and the like.
Owner:NANHUA UNIV

Submarine pipeline suspended span vortex-induced vibration active monitoring system and method thereof

The invention discloses a submarine pipeline suspended span vortex-induced vibration active monitoring system and a method thereof. A vortex-induced vibration monitoring device is used for obtaining and transmitting vortex-induced vibration information of a suspended span. When the frequency of X-axis acceleration data is two times of the frequency of Y-axis acceleration data, the suspended span generates vortex-induced vibration, and the vortex-induced vibration monitoring device transmits a vortex-induced vibration frequency to a vortex-induced vibration monitoring center through a water sound channel. A receiving and displaying device is used for receiving sound signals through the water sound channel, transmitting the sound signals into electric signals, processing the electric signals and displaying the frequency information of vortex-induced vibration. When the suspended span does not generate vortex-induced vibration, data transmission is not performed, and the vortex-induced vibration monitoring center keeps silent. According to the invention, the previous concept for passively monitoring the vortex-induced vibration of the suspended span is changed, data transmission is carried out only when the vortex-induced vibration is generated, the data transmission frequency is lowered, the energy consumption of the monitoring device is lowered, the time of determining the vortex-induced vibration is shortened, and the suspended span monitoring and managing efficiency is improved.
Owner:CHINA NAT OFFSHORE OIL CORP +3

Optimization method of distribution line route variation model based on ReliefF and t-SNE

The invention provides a method based on an optimization method of distribution line route variation model based on ReliefF and t-SNE. The method firstly collects the daily input power quantity of thedistribution line and the daily power consumption of each transformer connected with the distribution line, and then obtains the daily line loss power quantity, and secondly calculates the input-power quantity difference ratio according to the relationship between the input power quantity of the distribution line and the power consumption of the transformer. The line loss-power quantity difference ratio is calculated from the relationship between the line loss of distribution lines and the power consumption of transformers, which form sequences and are subjected to wavelet packet decomposition and reconstruction, and the percentage of energy to total energy in each frequency band is calculated as the primary feature. Then the ReliefF algorithm is used to calculate the weight of each primary feature. The SNE method reduces the high-dimensional feature to the low-dimensional feature. Finally, the BP neural network is used to optimize the linear relationship model. This method can reducethe workload of manual site survey, and realize the optimization of linear relationship model by selecting key features and reducing feature dimensions.
Owner:FUJIAN YIRONG INFORMATION TECH +2

Advance grouting transformation method of bottom plate combination directional holes of deeply-buried aquifers underground coal mine

The invention relates to an advance grouting transformation method of bottom plate combination directional holes of deeply-buried aquifers underground a coal mine. The advance grouting transformationmethod includes the steps that the bottom plate combination directional holes are constructed, and comprise deflecting hole sections entering the aquifers from aquicludes and horizontal hole sectionsstarting from the deflecting hole sections and extending inside the aquifers; jet hole sections penetrating through one or more of the aquifers in an extending mode are constructed on the side walls of the deflecting hole sections at the preset interval, and the jet hole sections do not intersect with the horizontal hole sections in the aquifers and cover blind areas of the horizontal hole sections; and grouting is conducted on the horizontal hole sections and the jet hole sections to transform aquifer bottom plates into aquiclude bottom plates. According to the advance grouting transformationmethod, the problems that the distance from a coal seam is large, the number of the aquifers is large, the treatment effect of the coal seam bottom plates with the high water pressure is poor, the blind areas are prone to existing are solved, the advantages that the grouting covering area is wide, no blind area exists in treatment, and efficiency is high are achieved, advance area grouting transformation of the bottom plates of the multiple deeply-buried aquifers is achieved, and the technical guarantee is provided for safe stoping of a working face.
Owner:XIAN RES INST OF CHINA COAL TECH& ENG GROUP CORP

Method for acquiring influence situation of disaster on power distribution network

The invention provides a method for acquiring the influence situation of a disaster on a power distribution network. According to the technical scheme of the invention, each disaster of the power distribution network is subjected to situation grading, and then a quantitative index is determined. According to the analytic hierarchy process, the influence sub-situation of each disaster is synthesized, and then the power supply situation rating of the power distribution network and the comprehensive evaluation score of an optimization scheme are determined. According to the power supply situation rating of the power distribution network and the comprehensive evaluation score of the optimization scheme, the influence situation result of the disaster is obtained based on a grey correlation method. The method is strong in adaptability, and the quantitative description of the influence situation of each of various equipments can be accurately and effectively realized. The perceiving, reasoning and analyzing on the operation situation under the influences of disaster conditions can be reliably realized. The operation change of the power distribution network can be analyzed and reasoned, while the influence of the disaster can be comprehensively and quantitatively considered. As a result, the method provides an accurate, comprehensive and reliable data basis for the disaster defense and treatment of the power distribution network. Meanwhile, the disaster prevention and treatment efficiency of the power distribution network is improved. The safety and the operation reliability of the power distribution network are improved.
Owner:CHINA ELECTRIC POWER RES INST +2

Safe and efficient treatment device of polluted soil

The invention discloses a safe and efficient treatment device of polluted soil. The device comprises a feeding pipe, a pulverizing machine, a treatment box, a drug spraying tank, a drug adding pipe, aspraying row, a heating device, a rotary circular platform, a discharging pipe and an ultraviolet lamp, the feeding pipe is arranged on the top of the treatment box, the pulverizing machine is arranged in the treatment box, one side of a shaking plate is hinged to the inner wall of the treatment box, a rotary motor is installed in an oblique chamber, a rotary shaft is arranged on the rotary motor, the rotary circular platform is arranged on the top of the rotary shaft, turning cutters are uniformly arranged on the side wall of the rotary circular platform, the drug spraying tank is installedon the top of the treatment box, the drug spraying tank is communicated with the spraying row through a liquid delivering pipe, the spraying row is arranged in the top end of the treatment box, the heating device and the ultraviolet lamp are installed on the inner wall of the treatment box, and universal wheels are arranged on the side face of the bottom end of the treatment box. By means of the treatment device, sterilization is conducted on the polluted soil, the breeding and spreading of harmful germs are prevented, the safety is improved, the soil treatment effect is improved, the structure is simple, and the device is convenient to use to facilitate popularization.
Owner:岑立强

Energy-saving landscape combined ecological floating island for long-acting treatment on black and odorous water body and construction method of energy-saving landscape combined ecological floating island

The invention provides an energy-saving landscape combined ecological floating island for long-acting treatment on a black and odorous water body. The energy-saving landscape combined ecological floating island for long-acting treatment on the black and odorous water body comprises a floating body and aquatic plants; a hollow inner ring is arranged on the floating body; a photocatalytic fiber netis arranged in the hollow inner ring; a planting basket is arranged on the floating body; and the aquatic plants are planted in the plating basket. The ecological floating island also comprises a solar aerator; at least two floating body units are assembled to form the floating body; the materials of the floating body include one or two of polyethylene and an ethylene-vinyl acetate copolymer; thedistance between each side of the photocatalytic fiber net and the floating body is more than or equal to 20 cm; the materials of the photocatalytic fiber net include one or more of nano-titanium dioxide, nano-zinc oxide, nano-tungsten trioxide, nano-ferric oxide and graphene modified titanium dioxide; the planting basket is a porous basket; the porous basket is filled with particulate matters; the particulate matters include ceramsite and water-based mineral fiber; and the aquatic plants include one or more of cuphea hyssopifolia, pincushion and festuca arundinacea. The invention also provides a construction method of the combined ecological floating island.
Owner:湖南新九方科技有限公司

Method for controlling blue algae

The invention discloses a covering shading film/enzyme/microbial agent/light source compound technique used for controlling blue algae in the manner of covering a shading film and combining with biological enzyme and microbial agent on the water surface of river, lake and reservoir. According to the invention, for the characteristic of the photosynthesis required by the growth of the blue algae, alight-shading technology for locally opening the covering shading film is adopted, namely, at least two shading films with air and water holes cover on the water surface at an interval, the photosynthesis of the blue algae is stopped in a large area, and meanwhile, the sunlight or manual light source supplementing is utilized to enrich and treat the blue algae on the locally opening water surfacecovered with the shading film; for the eutrophication environment required by the growth of the blue algae, the microbial agent is adopted for decomposing, absorbing and converting the eutrophicationmatters so as to change the eutrophication state of water; the biological enzyme is utilized to break the protein of the blue algae, so as to achieve the effect of killing and restraining the growthof the blue algae; the biological enzyme and the microbial agent are utilized to crack, decompose and absorb the algal toxin after the death of the blue algae.
Owner:姚竣耀

Multilayer treatment type atmosphere controlling device

The invention discloses a multilayer treatment type atmosphere controlling device, which comprises a machine case, a water box, an air inlet mechanism, a spraying chamber, a dust suction chamber and apurification chamber, wherein the air inlet mechanism is arranged on the machine case and comprises an air inlet cover, a negative pressure fan blade and a motor; a spraying chamber is arranged at the right end of the inner side of the machine case; the dust suction chamber is arranged at the left end of the inner side of the machine case; two position limiting clamp plates are symmetrically arranged at the inner side of the purification chamber; a zeolite layer is clamped and connected with the inner side of the position limiting clamp plate arranged at the lower end; an active carbon layeris clamped and connected into the position limiting clamp plate arranged at the upper end. The design is novel; the arranged air inlet cover can realize the biomimetic rotation, so that the air inletrange can be expanded; the control efficiency is improved; the entering gas can realize the primary cleaning on particle matters in the atmosphere through the spraying chamber and the dust suction chamber; the dust particles in the gas are greatly reduced; then, the pollution gas in the atmosphere are cleared through the zeolite layer and the active carbon layer in the purification chamber; the atmosphere controlling effect is improved; the practicability is high.
Owner:CHENGDU PUJIANG KEXIAN TECH

Environmental safe and efficient treatment device for soil pollution

The invention discloses an environmental safe and efficient treatment device for soil pollution. The environmental safe and efficient treatment device for the soil pollution includes a feeding pipe, acrusher, a processing box, a medicine spraying tank, a spray row, shaking plates, a heater, an inclined guide plate, a ultraviolet lamp and an ozone generator. The feeding pipe is arranged at the topend of the processing box, the crusher is arranged in the processing box, and one sides of the shaking plates are hinged to the inner wall of the processing box. The top end of the processing box isprovided with the medicine spraying tank, the medicine spraying tank is communicated with the spray row through a transfusion pipe, and the heater and the ultraviolet lamp are arranged on the inner wall of the processing box. A second cam is arranged in the processing box, a lifting plate is arranged directly above the second cam, and a plurality of sets of oscillating plates are uniformly arranged on both sides of the lifting plate. The side wall of the processing box is provided with the ozone generator, and the bottom end of the processing box is provided with the inclined guide plate. Thepolluted soil is sterilized and germicidal, the breeding and the transmission of harmful bacteria are avoided, the safety is improved, at the same time, the oxidation decomposition of organic matter is guaranteed, the effect of soil treatment is improved, the structure is simple, the use is convenient, and the environmental safe and efficient treatment device is beneficial to popularize.
Owner:刘艳燕

Double-circulation type soil pollution treatment device

The invention discloses a double-circulation type soil pollution treatment device. The device comprises a processing shell, a liquid storage tank and a circulation cavity, a bottom plate is arranged at the bottom of the processing shell, an upper cover is arranged at the upper end of the processing shell, the middle of the upper cover is sequentially provided with a first motor, a stirring shaft,a spiral blade and crushing blades, and a spray pipe and high-speed wide-angle spray heads are arranged at the lower end of the upper cover; and the liquid storage tank is arranged on the right wall of the processing shell, walking wheels and a discharging pipeline are arranged at the lower end of the processing shell, a feeding pipeline and a liquid pump are arranged on the upper cover, the circulation cavity is formed in the left wall of the processing shell, the circulation cavity is provided with a second motor, a lifting rotating shaft and a circulating lifting blade, and a circulation material outlet and a circulation material return opening are connected between the circulation cavity and the processing shell. According to the device, soil can be efficiently crushed, the soil crushing and treating efficiency can be further improved through internal and external double lifting circulation, the high-speed wide-angle spray heads are used cooperatively to spray an agent, effective and full mixing can be achieved, and the treatment of soil pollution can be efficiently completed.
Owner:李子琦

Treatment device for heavy metal pollution in soil

The invention discloses a treatment device for heavy metal pollution in soil. The device comprises a platform, and a front roller and a rear roller are rotatably mounted on support legs at the front end and the rear end of the platform respectively; a shovel plate is rotationally installed on the bottom face of the front end of the platform, a liquid storage tank is installed on the upper end faceof the platform, a spraying plate is installed at the bottom of the shovel plate, and a liquid conveying pipe communicates between the spraying plate and the liquid storage tank; and a sleeve is fixed to the bottom face of the rear end of the platform, a telescopic column is movably sleeved with the sleeve, an installation plate is fixed to the bottom of the telescopic column, and a plurality ofrakes are arranged on the installation plate. The surface layer of contaminated soil is shoveled up through the shovel plate, meanwhile, remediation liquid is sprayed to the inner layer of the soil through a spray head, and then the rakes reciprocate up and down, so that the soil layer is continuously punctured, the remediation liquid permeates into the deep part of the soil layer from puncture holes, and the treatment effect is improved; and soil shoveling, pesticide spraying, soil covering and puncturing processes are continuously carried out, so that uninterrupted treatment of soil can be realized, and the treatment efficiency is high.
Owner:国环绿能(北京)技术咨询有限公司

Intelligent river sewage treatment plant

PendingCN111138048AEfficient processing effectEnergy saving and environmental protection treatment effectWater resource protectionSpecific water treatment objectivesRiver routingWater flow
The invention provides a novel intelligent sewage treatment plant capable of being directly built on a riverway. A proper river section is selected at the upstream of a polluted river; a three-stage stepped dam is built through scientific design and modular combination; a water body purification device, an adsorption facility and an ecological restoration system are arranged in the corresponding dam body; a complex sewage treatment process is simplified and concentrated in a three-stage treatment dam to form an overwater intelligent sewage treatment plant, the polluted river water is directlysubjected to graded rapid purification treatment, and intelligent control, real-time online monitoring, data transmission and remote control are realized in the whole process. The stepped dam design generates water level difference to facilitate water flowing and scouring of a downstream river channel, and is matched with sewage interception of the downstream river channel, so that the polluted river channel is thoroughly treated, and water ecological natural restoration is accelerated. The intelligent river sewage treatment plant can be moved and flexibly reconstructed in other river sections, and is particularly suitable for treatment of polluted riverways with large sewage amount, treatment of urban sewage discharge channels or treatment of watershed pollution.
Owner:北京贝特斯联合科技有限公司

Centralized monitoring auxiliary inspection system for power grid regulation and control center

The invention relates to the technical field of power grid dispatching monitoring, and particularly relates to a centralized monitoring auxiliary inspection system for a power grid regulation and control center. The system realizes an auxiliary patrol function of power grid transformer substation monitoring information, and comprises inspection responsibility area configuration, monitoring transformer substation setting and inspection information processing so that the monitor can conveniently perform inspection l work of transformer substation remote measurement, remote signaling, displacement, channel working conditions, blocking inhibition, main transformation gears and capacitive reactance simultaneous investment information; the system comprises a responsibility area basic configuration module, a plant station basic configuration module, an inspection starting module, an inspection information processing module and an inspection information query module. The beneficial effects ofthe system are that the equipment monitoring operation management level is improved, the centralized monitoring application function is further improved, the data statistical analysis accuracy is improved, the monitoring information management efficiency is improved and the timely discovery of equipment defects is facilitated.
Owner:STATE GRID CORP OF CHINA +2

Automatic monitoring system for monitoring pollution state of running river area based on Internet of Things

The invention discloses an automatic monitoring system for monitoring the pollution state of a running river area based on Internet of Things. The automatic monitoring system comprises a sectional type running river management region, fixed point monitoring devices and a running river management central machine room, wherein the sectional type running river management region is divided by the running river area according to a jurisdictional area; the fixed point monitoring devices are arranged on both shores of the running river area and are provided with water quality real-time monitoring devices which are submerged in the water; and the running river management central machine room comprises a cloud server, and the fixed point monitoring devices are in wireless communication connection with the cloud server through an Internet of Things card module. According to the system, the running river area is divided into multiple regions by virtue of fixed point monitoring design, a pluralityof the fixed point monitoring devices are arranged in each region, each fixed point monitoring device is used for uninterruptedly acquiring water quality conditions of the position on which the fixedpoint monitoring device is located in a timing manner, and the systematized monitoring with the cloud server is realized by virtue of a wireless communication function of an Internet of Things card,so that managers of the running river management central machine room and the sectional type running river management region can know the water quality condition of the running river area in real time, and the real-time, rapid and effective management of the running river area is realized.
Owner:天狼联盟材料科技研究(广东)有限公司

Remediation device for hardened soil

The invention discloses a remediation device for hardened soil. The remediation device is characterized in that strut bearings are rotationally connected with moving rollers; the moving rollers are fixedly connected with a rotating shaft; a large belt wheel is in rolling connection with the upper end of a driving belt and is fixedly connected with a driven shaft; the driven shaft is sleeved with upper ends of stay rods; lower ends of the stay rods are fixedly connected with the lower end of a device body; a first eccentric wheel and a second eccentric wheel are fixedly connected with the leftside and the right side of the driven shaft respectively; first bevel gears are fixedly connected with the end parts of the driven shaft; second bevel gears are fixedly connected with lower parts of worms. According to the device, the worms drive worm wheels to rotate to drive grinding rollers to rotate, then the hardened soil is smashed to fall on a guiding plate, and the smashed oil is driven tomove up and down by the guiding plate performing vertical reciprocating vibration and is intermittently discharged into a mixing box from a soil output pipe; a driving shaft under rotating drives stirring blades to rotate to mix chemicals and the soil sufficiently; the mixed soil is intermittently discharged by a second turntable under rotating. The device is reasonable and applicable in structural design, the governing efficiency of the hardened soil is greatly improved, and labor is saved.
Owner:雷晓琴

Software resource system based on field-level blood relationship and establishment method thereof

The invention discloses a software resource system based on a field-level blood relationship and an establishment method thereof. The system comprises an analysis device, a heterogeneous environment data import device and a function classification device. The analysis device is used for obtaining a query statement from a predetermined distributed file system, analyzing the query statement into anabstract syntax tree, traversing through a depth-first traversal algorithm to obtain node data in the abstract syntax tree, and obtaining a field-level blood relationship of the query statement according to the node data and an association relationship thereof; the heterogeneous environment data import device is used for acquiring heterogeneous data corresponding to a source table in a metadata management system, and supplementing the heterogeneous data into the blood relationship according to the corresponding relationship between the heterogeneous data and the blood relationship; and the function classification device is used for classifying scripts according to the script categories, and establishing and generating a tree structure based on the field-level blood relationship to obtain asoftware resource system according to the logic association between the function categories of the scripts and the blood relationship after the heterogeneous data is supplemented.
Owner:INDUSTRIAL AND COMMERCIAL BANK OF CHINA

Preparation method and usage of mineral stabilizer for controlling release of phosphor and heavy metals in dredged sediment

InactiveCN102115299AAchieve security and stabilityImprove governance efficiencySludge treatmentRed mudPhosphogypsum
The invention belongs to waste resource recycling and non-point source pollution control technology in the resource and environment technology field, and particularly relates to a preparation method and a usage of a mineral stabilize. The mineral stabilizer is prepared by mixing red mud which is generated by the residue extracted by bauxite from alumina industrial production and is used as the main raw material and fly ash (or phosphogypsum) in certain proportion. The mineral matter solid stability agent in a certain proportion is blended into dredged sediment, then the mixture is stirred and stockpiled for a while. By processing dredged sediment according to the method, release of phosphor and heavy metals in the dredged sediment can be controlled so as not to pollute the surrounding water. The technology of the invention solves the present problem that phosphor and the heavy metal release in the dredged sediment causes the secondary pollution in the sediment dredging engineering implementation process. The method is simple and easy to do, has high managing efficiency, low managing cost, and provides a effective solving approach with preventing and controlling phosphor and heavy metal release in dredged sediment.
Owner:RES CENT FOR ECO ENVIRONMENTAL SCI THE CHINESE ACAD OF SCI

Spraying device for agricultural soil treatment

The invention discloses a spraying device for agricultural soil treatment, and belongs to the technical field of agricultural soil treatment. The spraying device for agricultural soil treatment comprises a water-pesticide mixing box, a water pump is arranged in the middle of the rear side inside the water-pesticide mixing box, a mechanical box is arranged in the middle of the upper wall inside the water-pesticide mixing box, a motor is arranged on the front side inside the mechanical box, a rotating shaft is arranged in the middle of the rear side below the mechanical box, the upper end of the rotating shaft penetrates through the inner wall of the mechanical box, extends out of the water-pesticide mixing box and is sleeved with a rotating disc, the outer wall of the circumference of the rotating disc is slidably connected with a plurality of supporting rods, and the bottom surfaces of the outer ends of the supporting rods are rotatably connected with movable rods through pins. Due to the tight fit among the structures, the device can simultaneously spray the pesticide on the periphery of the soil needing to be sprayed, through the arrangement of an adjusting rod, all the spray heads can spray towards the periphery of the outer side, the spraying efficiency is greatly improved, the spraying range is expanded, and the soil treatment efficiency and effect are improved.
Owner:郜国印
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