CN206104542U - Heavy metal soil processing apparatus and soil processing system - Google Patents
Heavy metal soil processing apparatus and soil processing system Download PDFInfo
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- CN206104542U CN206104542U CN201621118900.7U CN201621118900U CN206104542U CN 206104542 U CN206104542 U CN 206104542U CN 201621118900 U CN201621118900 U CN 201621118900U CN 206104542 U CN206104542 U CN 206104542U
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- heavy metal
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Abstract
The utility model provides a pair of heavy metal soil processing apparatus, including power, processing unit, processing unit and transportation unit in advance, transportation unit is used for following pending soil in advance, and processing unit transports to processing unit, processing unit is including detecting room and reacting chamber in advance, pending soil passes through transportation unit and transports to the reacting chamber from detecting the room, detect indoor moisture content sensor and the weighing transducer of being provided with, be provided with humidifier and desicator in the reacting chamber, processing unit includes screening plant, ball mill, spray thrower, sludge -water separator and effluent liquid processing apparatus, the spray thrower includes solution tank, spray piping and shower nozzle, and the shower nozzle passes through water pump and spray piping intercommunication, is provided with water pump control valve and flow rate regulating valve on the spray piping, effluent liquid processing apparatus has the regulating box of heavy metal treatment fluid including heavy metal analysis appearance, effluent liquid collecting pit and splendid attire, sludge -water separator's export sets up screen cloth, effluent liquid collecting pit and regulating box intercommunication.
Description
Technical field
The utility model is related to soil treatment technical field, more particularly, to a heavy metal species soil treatment device and soil
Processing system.
Background technology
Soil is the important substance basis of human society production activity, is indispensable, is difficult to the natural resources that regenerates.
Currently, the situation of China's soil pollution very severe, is asked by the ecological safety of agricultural product caused by soil pollution
Topic can not be ignored.Because soil environmental pollution has the effect for converging, poisonous and harmful chemicals is by air and water in soil
Body is transmitted, and can endanger existence procreation and the life security of human and animal.This process may be more hidden, but soil pollution is
Threaten the safety of the mankind.Due to the seriousness and its difficulty of reparation of soil pollution, and the urgency to contaminated soil remediation
With demand, contaminated soil remediation become the focus of current Research of Environmental Sciences and extremely challenging field.
In recent years, the country such as the U.S., Germany, Holland, Britain successively puts into huge manpower, financial resources, has carried out dirt in a deep going way
Dye soil remediation research, obtains remarkable break-throughs, in some technology applications at peripheral doses, chemical redemption and biological prosthetic aspect
Aspect has enter into commercialization stage.Specifically, common soil restoring technology has thermodynamics recovery technique, thermal desorption reparation
Technology, burning method, land fill, chemical leaching, composting process, phytoremediation, permeable reactive wall, biological prosthetic etc..
But, so far, there is general applicability without a special technology, for the heavy metal in soil
Processed.
Utility model content
The purpose of this utility model is to provide a heavy metal species soil treatment device and soil treatment system, to provide one
Plant the soil treatment mode with general applicability to solve the technical problem of soil pollution.
The utility model provide a heavy metal species soil treatment device, including power supply, pretreatment unit, processing unit and
Delivery unit；The delivery unit is used to pending soil is transported to the processing unit from the pretreatment unit；
The pretreatment unit includes sensing chamber and reative cell；The pending soil is by the delivery unit from described
Sensing chamber is transported to the reative cell；
The detection interior is provided with moisture sensor and weight sensor, for detecting the dry and wet of pending soil
Degree；
The reaction interior is provided with humidifier and drier, for adjusting the humidity of pending soil；
The processing unit includes screening plant, ball mill, spray thrower, separator for mud and water and flows out liquid processing device；Institute
State ball mill described in pending soil from the screening plant successively Jing, the spray thrower and the separator for mud and water to transport to institute
State outflow liquid processing device；
The spray thrower includes liquor box, spray piping and shower nozzle, and the shower nozzle is connected by water pump with the spray piping
It is logical, and control valve for water pump and flow rate regulating valve are provided with the spray piping；
The outflow liquid processing device includes heavy metal analyser, efflux collecting pit and is loaded with heavy metal treatment fluid
Regulating box；
The outlet of the separator for mud and water arranges screen cloth, and is connected with the efflux collecting pit by the screen cloth, institute
State efflux collecting pit to connect with the regulating box.
Further, in embodiment of the present utility model, heavy metal soil treatment device also includes control unit, described
Control unit includes data processing module and data analysis module；
The data analysis module is electrically connected with the pretreatment unit, for the moisture sensor and described heavy
The detection data of quantity sensor is analyzed generation analysis result；
The data processing module is electrically connected with the pretreatment unit, for according to the analysis result to the humidification
Device and the drier are controlled.
Further, in embodiment of the present utility model, the data processing module also with the control valve for water pump and
The flow rate regulating valve is even electrically connected, for being controlled to the control valve for water pump and the flow rate regulating valve.
Further, in embodiment of the present utility model, the power supply includes solar units；
The solar units include solar panels, change-over circuit and energy storage device；The solar panels and the conversion
Circuit and the energy storage device are electrically connected；
The change-over circuit is electrically connected with the pretreatment unit and the processing unit.
Further, in embodiment of the present utility model, the energy storage device includes lithium titanate battery and super capacitor.
Further, in embodiment of the present utility model, the drier is included in air blast, dryer and heater
One kind or any combination.
Further, in embodiment of the present utility model, the screening plant is vibrating screen classifier.
Further, in embodiment of the present utility model, the outlet of the separator for mud and water is located at its bottom, pending
Moisture in soil flows into the efflux collecting pit by Action of Gravity Field through the screen cloth.
Further, in embodiment of the present utility model, heavy metal soil treatment device also includes exhaust gas treatment unit,
The exhaust gas treatment unit is connected with the reative cell；
The exhaust gas treatment unit includes exhaust pump and active carbon adsorber, for discharging and filtering out in preprocessing process
The gas of generation.
Further, in embodiment of the present utility model, heavy metal soil treatment device also includes exhaust gas treatment unit,
The exhaust gas treatment unit is connected with the processing unit；
The exhaust gas treatment unit includes exhaust pump and active carbon adsorber, produces for discharging and filtering out in processing procedure
Raw gas.
The utility model additionally provides a kind of soil treatment system, including described heavy metal soil treatment device.
In above-mentioned technical proposal, the delivery unit can be by pending soil is in the pretreatment unit and processes single
Transported according to the flow process for processing in unit, there is provided a kind of basic condition of automatic business processing.And in actual processing procedure
In, because the technique needs process standard, amount of soil per treatment can be in advance set, carry out standard process, the detection
Indoor moisture sensor and weight sensor can carry out preliminary inspection to the pending soil of predetermined standard volume first
Survey, detect its moisture content and soil weight, after sensing chamber described in Jing is detected, reative cell is transported it into by delivery unit,
According to the testing result of the sensing chamber, place is humidified or is dried to the pending soil by humidifier and drier
Reason, made pending soil before processing unit processes described in Jing, reached the water content state of a standard, to ensure at place
When reason, the process that each class is standardized according to the standard for setting, save manually keep an eye on, improve operating efficiency and
Process quality.
After pretreatment unit is processed described in, pending soil can reach the water content state of a standard, now, Jing institutes
Stating delivery unit and transporting to processing unit carries out formal process.First, the screening plant can be sieved to pending soil
Divide operation, pending soil is further crushed followed by the ball mill so as to reach default journey in small, broken bits
Degree, the granularity can specifically set according to actual conditions.Then, the spray thrower can be sprayed to it, with by spray
Heavy metal and other harmful substances in drenching to remove soil, wherein, the control valve for water pump and flow rate regulating valve can bases
Set to carry out the injection of standard quantity of water and water speed, the standard is also to carry out with the pending soil of above-mentioned predetermined standard volume
Match somebody with somebody, after spray process, the separator for mud and water can be separated to soil and moisture, and the screen cloth is for stopping
Soil is excessively lost in, and only allows what moisture flowed out, because heavy metal and other harmful substances can be flowed away by moisture, so just
The effect of purification is served to soil.
The efflux collecting pit is collected from separator for mud and water outflow containing heavy metal and other pollutants
Water after, the heavy metal treatment fluid that will pass through in the regulating box is processed, and pending reaching just discharge after standard, it is to avoid
Efflux after process can secondary pollution environment.
Description of the drawings
In order to be illustrated more clearly that the utility model specific embodiment or technical scheme of the prior art, below will be right
The accompanying drawing to be used needed for specific embodiment or description of the prior art is briefly described, it should be apparent that, describe below
In accompanying drawing be some embodiments of the present utility model, for those of ordinary skill in the art, do not paying creativeness
On the premise of work, can be with according to these other accompanying drawings of accompanying drawings acquisition.
The attachment structure schematic diagram of the heavy metal soil treatment device that Fig. 1 is provided for the utility model embodiment；
The structural representation of the spray thrower that Fig. 2 is provided for the utility model embodiment；
The attachment structure figure of the outflow liquid processing device that Fig. 3 is provided for the utility model embodiment；
The attachment structure schematic diagram of the control unit that Fig. 4 is provided for the utility model embodiment；
The attachment structure schematic diagram of the power supply that Fig. 5 is provided for the utility model embodiment；
The exhaust gas treatment unit attachment structure schematic diagram that Fig. 6 is provided for the utility model embodiment.Reference：
1- power supplys；2- pretreatment units；3- processing units；
4- control units；5- exhaust gas treatment units；11- solar units；
21- sensing chamber；22- reative cells；31- screening plants；
32- ball mills；33- spray throwers；34- separator for mud and water；
35- flows out liquid processing device；41- data processing modules；42- data analysis modules；
51- exhaust pumps；52- active carbon adsorbers；111- solar panels；
112- change-over circuits；113- energy storage devices；211- moisture sensors；
212- weight sensors；221- humidifiers；222- driers；
331- liquor boxs；332- spray pipings；333- shower nozzles；
334- water pumps；335- control valve for water pump；336- flow rate regulating valves；
341- screen clothes；351- heavy metal analysers；352- efflux collecting pits；
353- regulating boxs.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with accompanying drawing, it is clear that described
Embodiment is a part of embodiment of the utility model, rather than the embodiment of whole.Based on the embodiment in the utility model, this
The every other embodiment that field those of ordinary skill is obtained under the premise of creative work is not made, belongs to this practicality
Novel protected scope.
In description of the present utility model, it should be noted that term " " center ", " on ", D score, "left", "right", " perpendicular
Directly ", the orientation or position relationship of the instruction such as " level ", " interior ", " outward " is, based on orientation shown in the drawings or position relationship, to be only
For the ease of describe the utility model and simplify description, rather than indicate or imply indication device or element must have it is specific
Orientation, with specific azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model.Additionally, term " the
One ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that indicating or implying relative importance.
In description of the present utility model, it should be noted that unless otherwise clearly defined and limited, term " peace
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected, or be detachably connected, or integratedly
Connection；Can be mechanically connected, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary,
It can be the connection of two element internals.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
Concrete meaning of the language in the utility model.
The attachment structure schematic diagram of the heavy metal soil treatment device that Fig. 1 is provided for the utility model embodiment；First, such as
Shown in Fig. 1, the heavy metal species soil treatment device that the present embodiment is provided, including power supply 1, pretreatment unit 2, processing unit 3
And delivery unit；The delivery unit is used to pending soil is transported to the processing unit 3 from the pretreatment unit 2；
Wherein, the delivery unit can be belt transport unit and other can transport the transporting equipment of pending soil, to realize
The transport effect of automation, and in this application, the concrete form of delivery unit is not limited, it is any based on the application's
Technical scheme, in the new solution obtained without creative work, is all contained in the protection domain of technical scheme
Within.
The pretreatment unit 2 includes sensing chamber 21 and reative cell 22；The pending soil passes through the delivery unit
Transport to the reative cell 22 from the sensing chamber 21；
Moisture sensor 211 and weight sensor 212 are provided with the sensing chamber 21, for detecting pending soil
Humidity；
Humidifier 221 and drier 222 are provided with the reative cell 22, for adjusting the humidity of pending soil；
The processing unit 3 is included at screening plant 31, ball mill 32, spray thrower 33, separator for mud and water 34 and efflux
Reason device 35；The pending soil passes through ball mill 32, institute described in the delivery unit from the screening plant 31 successively Jing
State spray thrower 33 and the separator for mud and water 34 is transported to the outflow liquid processing device 35；
The structural representation of the spray thrower that Fig. 2 is provided for the utility model embodiment；As shown in Fig. 2 the spray thrower 33
Including liquor box 331, spray piping 332 and shower nozzle 333, the shower nozzle 333 is connected by water pump 334 with the spray piping 332
It is logical, and the control valve for water pump 335 and flow rate regulating valve being engaged with the water pump 334 is provided with the spray piping 332
336；
The attachment structure figure of the outflow liquid processing device that Fig. 3 is provided for the utility model embodiment；As shown in figure 3, described
Flowing out liquid processing device 35 includes heavy metal analyser 351, efflux collecting pit 352 and is loaded with the regulation of heavy metal treatment fluid
Case 353；
The outlet of the separator for mud and water 34 arranges screen cloth 341, and by the screen cloth 341 and the efflux collecting pit
352 connections, the efflux collecting pit 352 is connected with the regulating box 353.
In the particular embodiment, the delivery unit can be by pending soil is in the pretreatment unit 2 and processes
Transported according to the flow process for processing in unit 3, there is provided a kind of basic condition of automatic business processing.And in actual process
Cheng Zhong, because the technique needs process standard, can in advance set amount of soil per treatment, carry out standard process, the inspection
The moisture sensor 211 and weight sensor 212 surveyed in room 21 can enter first to the pending soil of predetermined standard volume
The preliminary detection of row, detects its moisture content and soil weight, after sensing chamber 21 described in Jing is detected, is transported by delivery unit
It is defeated to reative cell 22, it is described pending by humidifier 221 and 222 pairs, drier according to the testing result of the sensing chamber 21
Soil is humidified or dried process, makes pending soil before the process of processing unit described in Jing 3, reaches containing for standard
Water yield state, to ensure that the process that each class is standardized according to the standard for setting saves people when processing
Work keeps an eye on, improves operating efficiency and process quality.
After pretreatment unit 2 is processed described in, pending soil can reach the water content state of a standard, now, Jing
The delivery unit is transported to processing unit 3 and carries out formal process.First, the screening plant 31 can enter to pending soil
Row screening operation, is further crushed so as to reach default followed by the ball mill 32 to pending soil
Granularity, the granularity can specifically set according to actual conditions.Then, the spray thrower 33 can be sprayed to it,
With heavy metal and other harmful substances in by spraying to remove soil, wherein, the control valve for water pump 335 and flow velocity are adjusted
Section valve 336 can carry out the injection of standard quantity of water and water speed according to setting, and the standard is also to treat with above-mentioned predetermined standard volume
Process what soil was matched, after spray process, the separator for mud and water 34 can be separated to soil and moisture, and institute
It is, for stopping that soil is excessively lost in, only to allow what moisture flowed out, due to heavy metal and other harmful substance meetings to state screen cloth 341
Flowed away by moisture, the effect of purification is so just served to soil.
The efflux collecting pit 352 is collected from the outflow of the separator for mud and water 34 containing heavy metal and other dirts
After the water of dye thing, the heavy metal treatment fluid that will pass through in the regulating box 353 is processed, and pending reaching just arrange after standard
Go out, it is to avoid the efflux after process can secondary pollution environment.
The attachment structure schematic diagram of the control unit that Fig. 4 is provided for the utility model embodiment；As shown in figure 4, heavy metal
Soil treatment device also includes control unit 4, and described control unit 4 includes data processing module 41 and data analysis module 42；
The data analysis module 42 is electrically connected with the pretreatment unit 2, for the He of the moisture sensor 211
The detection data of the weight sensor 212 is analyzed generation analysis result；
The data processing module 41 is electrically connected with the pretreatment unit 2, for according to the analysis result to described
Humidifier 221 and the drier 222 are controlled.
Further, the data processing module 41 also connects with the control valve for water pump 335 and the flow rate regulating valve 336
Electrical connection, for being controlled to the control valve for water pump 335 and the flow rate regulating valve 336.
The attachment structure schematic diagram of the power supply that Fig. 5 is provided for the utility model embodiment；As shown in figure 5, the power supply 1 is wrapped
Include solar units 11；
The solar units 11 include solar panels 111, change-over circuit 112 and energy storage device 113；The solar panels
111 electrically connect with the change-over circuit 112 and the energy storage device 113；
The change-over circuit 112 is electrically connected with the pretreatment unit 2 and the processing unit 3.
Further, the energy storage device 113 includes lithium titanate battery and super capacitor, by the solar energy storage that will be absorbed
In there is the energy storage device 113, it is possible to proceed the supply of electric power at night or insufficient sunshine.
Further, the drier 222 includes the one kind or any combination in air blast, dryer and heater.
Further, the screening plant 31 is vibrating screen classifier.
Further, the outlet of the separator for mud and water 34 is located at its bottom, and the moisture in pending soil passes through gravity
Effect flows into the efflux collecting pit 352 through the screen cloth 341.
The exhaust gas treatment unit attachment structure schematic diagram that Fig. 6 is provided for the utility model embodiment；As shown in fig. 6, a huge sum of money
Dependent territory earth processing meanss also include exhaust gas treatment unit 5, and the exhaust gas treatment unit 5 is connected with the reative cell 22；
The exhaust gas treatment unit 5 includes exhaust pump 51 and active carbon adsorber 52, for discharging and filtering out pretreatment
During produce gas.
Present invention also provides a kind of soil treatment system, including described heavy metal soil treatment device.
Because the concrete structure and the principle of work and power of the heavy metal soil treatment device are described in detail above, here
Just repeat no more.
Finally it should be noted that：Various embodiments above is only illustrating the technical solution of the utility model, rather than it is limited
System；Although being described in detail to the utility model with reference to foregoing embodiments, one of ordinary skill in the art should
Understand：It still can modify to the technical scheme described in foregoing embodiments, either to which part or whole
Technical characteristic carries out equivalent；And these are changed or are replaced, the essence for not making appropriate technical solution departs from this practicality newly
The scope of each embodiment technical scheme of type.
Claims (10)
1. a heavy metal species soil treatment device, it is characterised in that including power supply (1), pretreatment unit (2), processing unit (3)
And delivery unit；The delivery unit is used to pending soil is transported to the processing unit from the pretreatment unit (2)
(3)；
The pretreatment unit (2) includes sensing chamber (21) and reative cell (22)；The pending soil is single by the transport
Unit is transported to the reative cell (22) from the sensing chamber (21)；
Moisture sensor (211) and weight sensor (212) are provided with the sensing chamber (21), for detecting pending soil
The humidity of earth；
Humidifier (221) and drier (222) are provided with the reative cell (22), for adjusting the dry and wet of pending soil
Degree；
The processing unit (3) includes screening plant (31), ball mill (32), spray thrower (33), separator for mud and water (34) and stream
Go out liquid processing device (35)；The pending soil is by the delivery unit from the screening plant (31) successively ball described in Jing
Grinding machine (32), the spray thrower (33) and the separator for mud and water (34) are transported to outflow liquid processing device (35)；
The spray thrower (33) includes liquor box (331), spray piping (332) and shower nozzle (333), and the shower nozzle (333) passes through
Water pump (334) is connected with the spray piping (332), and is provided with the spray piping (332) and the water pump (334) phase
The control valve for water pump (335) and flow rate regulating valve (336) of cooperation；
Outflow liquid processing device (35) is including heavy metal analyser (351), efflux collecting pit (352) and is loaded with a huge sum of money
The regulating box (353) of category treatment fluid；
The outlet of the separator for mud and water (34) arranges screen cloth (341), and is collected with the efflux by the screen cloth (341)
Pond (352) connects, and the efflux collecting pit (352) connects with the regulating box (353).
2. heavy metal soil treatment device according to claim 1, it is characterised in that described also including control unit (4)
Control unit (4) includes data processing module (41) and data analysis module (42)；
The data analysis module (42) electrically connects with the pretreatment unit (2), for the moisture sensor (211)
Generation analysis result is analyzed with the detection data of the weight sensor (212)；
The data processing module (41) electrically connects with the pretreatment unit (2), for according to the analysis result to described
Humidifier (221) and the drier (222) are controlled.
3. heavy metal soil treatment device according to claim 2, it is characterised in that the data processing module (41) is also
Even electrically connect with the control valve for water pump (335) and the flow rate regulating valve (336), for the control valve for water pump (335)
It is controlled with the flow rate regulating valve (336).
4. heavy metal soil treatment device according to claim 3, it is characterised in that the power supply (1) is including solar energy
Unit (11)；
The solar units (11) include solar panels (111), change-over circuit (112) and energy storage device (113)；The sun
Energy plate (111) is electrically connected with the change-over circuit (112) and the energy storage device (113)；
The change-over circuit (112) electrically connects with the pretreatment unit (2) and the processing unit (3).
5. heavy metal soil treatment device according to claim 4, it is characterised in that the energy storage device (113) includes
Lithium titanate battery and super capacitor.
6. heavy metal soil treatment device according to claim 5, it is characterised in that the drier (222) is including drum
One kind or any combination in blower fan, dryer and heater.
7. heavy metal soil treatment device according to claim 6, it is characterised in that the screening plant (31) is vibration
Screening machine.
8. heavy metal soil treatment device according to claim 7, it is characterised in that separator for mud and water (34) go out
Mouth is located at its bottom, and the moisture in pending soil flows into the efflux receipts by Action of Gravity Field through the screen cloth (341)
Ji Chi (352).
9. heavy metal soil treatment device according to claim 8, it is characterised in that also including exhaust gas treatment unit (5),
The exhaust gas treatment unit (5) connects with the reative cell (22)；
The exhaust gas treatment unit (5) includes exhaust pump (51) and active carbon adsorber (52), for discharging and filtering out pre- place
The gas produced during reason.
10. a kind of soil treatment system, it is characterised in that include at the heavy metal soil as described in any one of claim 1-9
Reason device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621118900.7U CN206104542U (en) | 2016-10-13 | 2016-10-13 | Heavy metal soil processing apparatus and soil processing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621118900.7U CN206104542U (en) | 2016-10-13 | 2016-10-13 | Heavy metal soil processing apparatus and soil processing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206104542U true CN206104542U (en) | 2017-04-19 |
Family
ID=58528503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621118900.7U Expired - Fee Related CN206104542U (en) | 2016-10-13 | 2016-10-13 | Heavy metal soil processing apparatus and soil processing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206104542U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108828241A (en) * | 2018-03-15 | 2018-11-16 | 中国科学院合肥物质科学研究院 | A kind of soil nutrient automatic analysis system and its working method based on robot |
| CN109470535A (en) * | 2018-11-12 | 2019-03-15 | 崔维佳 | The Microwave Pretreatment device and microwave method for preprocessing of heavy metal-polluted soil detection |
| CN112892391A (en) * | 2021-01-27 | 2021-06-04 | 中国工程物理研究院激光聚变研究中心 | Polishing solution moisture online adjustment precision control device and method |
-
2016
- 2016-10-13 CN CN201621118900.7U patent/CN206104542U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108828241A (en) * | 2018-03-15 | 2018-11-16 | 中国科学院合肥物质科学研究院 | A kind of soil nutrient automatic analysis system and its working method based on robot |
| CN108828241B (en) * | 2018-03-15 | 2023-02-03 | 合肥中科方舟机器人技术有限公司 | Robot-based automatic analysis system for soil nutrients and working method thereof |
| CN109470535A (en) * | 2018-11-12 | 2019-03-15 | 崔维佳 | The Microwave Pretreatment device and microwave method for preprocessing of heavy metal-polluted soil detection |
| CN109470535B (en) * | 2018-11-12 | 2021-06-01 | 吉林小德川农业科技有限公司 | Microwave pretreatment device and microwave pretreatment method for soil heavy metal detection |
| CN112892391A (en) * | 2021-01-27 | 2021-06-04 | 中国工程物理研究院激光聚变研究中心 | Polishing solution moisture online adjustment precision control device and method |
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