CN103477746A - Vegetation concrete pore soil alkalinity reconstruction method and device - Google Patents
Vegetation concrete pore soil alkalinity reconstruction method and device Download PDFInfo
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- CN103477746A CN103477746A CN201310455898.7A CN201310455898A CN103477746A CN 103477746 A CN103477746 A CN 103477746A CN 201310455898 A CN201310455898 A CN 201310455898A CN 103477746 A CN103477746 A CN 103477746A
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Abstract
The invention discloses a vegetation concrete pore soil alkalinity reconstruction method and a device to achieve the method. An alkali reduction solution is prepared and is sprayed on pore soil of vegetation concrete, and the pH value of the pore soil is measured to determine spraying of the alkali reduction solution; the device comprises a pH value senor, an alarm device, an automatic control switch, a spraying device and a circuit, wherein the pH value sensor, the alarm device, the automatic control switch, the spraying device and the circuit are sequentially connected in series and the measure value of the pH value sensor serves as a signal for triggering the automatic control switch. The vegetation concrete pore soil alkalinity reconstruction method and the device have the advantages that the alkali reduction solution is directly sprayed on the vegetation concrete pore soil, effect is obvious, necessary elements, required by vegetation growing, such as phosphorus and potassium can be supplemented, starting and stopping of alkali reduction solution spraying are controlled by the automatic device according to the actually measured pH value of the soil, the automatic device is good in self-inspection performance and self-control performance, cost and manpower are effectively reduced, reconstruction durability is achieved, the pore soil is durably kept to provide the alkalinity environment suitable for normal vegetation growing and vegetation survival rate is improved.
Description
Technical field
The present invention relates to a kind of soil alkalinity remodeling method and device thereof, particularly a kind of vegetation concrete pore soil alkalinity remodeling method and device thereof.
Background technology
Plant cover concrete is a kind of eco-concrete, has effects such as beautifying the environment, prevent erosion, purify air, can be widely used in the engineerings such as bank protection, road-center isolation strip, landscape floor.At present, also there are problems in the technology of preparing of plant cover concrete, thereby limited it, applies on a large scale.It is stable that the key technology that successfully prepares plant cover concrete is the basicity that how to keep vegetation concrete pore soil, to adapt to the vegetation growth requirement.
Normal concrete is because basicity is too high, and vegetation can't normal growth.Wherein, alkaline matter is mainly derived from cement, admixture in concrete, gathers materials and additive, especially the alkali that hydrated cementitious produces is the most serious, mainly slaked lime, carrying out along with the aquation process, alkaline matter in Binder Materials can chronicity constantly overflow, make the hole soil pH value can be up to more than 12.Therefore how lastingly, effectively the hole soil alkalinity is transformed, for meeting the basicity requirement of vegetation normal growth,, make it maintain neutral environment in long-time, be the key of plant cover concrete application technology.
At present, few about the method for plant cover concrete basicity transformation both at home and abroad, and most of remodeling method can only improve the plant root growth environment in a short time, and As time goes on, alkaline matter in concrete can constantly overflow, and the maintenance basicity that existing method can't be steady in a long-term is stable.In addition, due to the popularization of current plant cover concrete and be of limited application, existing basicity remodeling method is to adding in concrete after falling alkaloid substance or concrete hardening and sprays sealer, basicity is not transformed lastingly, therefore, also can't make the scope of hole soil alkalinity long term maintenance in the suitable for plant growth.
Summary of the invention
Goal of the invention: for the problems referred to above, the purpose of this invention is to provide a kind ofly to vegetation concrete pore soil alkalinity remodeling method, make hole soil maintain lastingly the basicity environment of suitable vegetation normal growth; Another object of the present invention is to provide the device of realizing this remodeling method.
Technical scheme: a kind of vegetation concrete pore soil alkalinity remodeling method, preparation is fallen aqueous slkali and is sprayed on the hole soil of plant cover concrete, by the pH value of measuring hole soil, decides the sprinkling of falling aqueous slkali.
The described aqueous slkali that falls is Ca (H
2pO
4)
2solution, KH
2pO
4one or both of solution are compound.By Ca (H
2pO
4)
2, KH
2pO
4with the alkaline matter Ca (OH) in concrete
2reaction generates precipitation and neutral substance, thereby reaches the purpose of falling alkali, and simultaneously, the salts substances in product can also supplement the essential elements such as the required phosphorus of plant growth, potassium, contributes to the plant health growth.Reaction equation is as follows:
Ca(H
2PO
4)
2+Ca(OH)
2→Ca
3(PO
4)
2↓+H
2O
KH
2PO
4+Ca(OH)
2→Ca
3(PO
4)
2↓+K
3PO
4+H
2O。
The pH value of measuring hole soil of usining falls as decision the cut off value that aqueous slkali sprays as 8.5, when the pH value that hole soil detected is greater than 8.5, enable and fall aqueous slkali hole soil is sprayed, when the pH value that hole soil detected is less than 8.5, stop with falling aqueous slkali, hole soil being sprayed.
Realize the device of above-mentioned vegetation concrete pore soil alkalinity remodeling method, comprise pH value sensor, warning device, automatic control switch, spray appliance, described pH value sensor, described warning device, described automatic control switch, described spray appliance are connected in series successively with circuit, and the measured value of described pH value sensor is as the signal that triggers described automatic control switch.
Also comprise hand control switch, described hand control switch is connected in described warning device and described automatic control switch two ends in parallel.When automatic control switch goes wrong, can close automatic control switch, adopt hand control switch to be controlled.
Described pH value sensor adopts pre-buried online detection formula, vertically is embedded in institute's gaging hole gap soil region, and guarantees that at any time institute's gaging hole gap soil is in moisture state.
Beneficial effect: compared with prior art, advantage of the present invention is that vegetation concrete pore soil is directly sprayed and falls aqueous slkali and carry out the basicity transformation, it is obvious that the aqueous slkali action effect falls, can also supplement the essential elements such as the required phosphorus of plant growth, potassium, and control the sprinkling start and stop of falling aqueous slkali by automation equipment according to the actual measurement soil pH value, self check, autocontrol performance are good, effectively reduce costs and manpower, reach the persistence of transformation, make hole soil maintain lastingly the basicity environment of suitable vegetation normal growth, improve the plant survival rate.
The accompanying drawing explanation
Accompanying drawing is apparatus of the present invention structural representation.
Embodiment
Below in conjunction with the drawings and specific embodiments, further illustrate the present invention, should understand these embodiment only is not used in and limits the scope of the invention for the present invention is described, after having read the present invention, those skilled in the art all fall within the application's claims limited range to the modification of the various equivalent form of values of the present invention.
A kind of vegetation concrete pore soil alkalinity remodeling method: at first aqueous slkali falls in preparation, falls aqueous slkali by Ca (H
2pO
4)
2solution, KH
2pO
4one or both of solution are compounded to form, and the solution concentration scope is saturated solution to the maximum, the aqueous slkali that falls that then will prepare is sprayed directly on the hole soil of plant cover concrete, whether need sprinkling to fall aqueous slkali is to decide according to the pH value of measuring hole soil, according to the basicity environment set of suitable vegetation normal growth, the pH value cut off value that aqueous slkali sprays is fallen, when the pH value that hole soil detected is greater than the cut off value of this setting, enable and fall aqueous slkali hole soil is sprayed, when the pH value that hole soil detected is less than the cut off value of this setting, stop with falling aqueous slkali, hole soil being sprayed, the best pH value cut off value upper limit is set as 8.5.
In order to reach, the vegetation concrete pore soil alkalinity is transformed lastingly, make hole soil maintain lastingly the purpose of the basicity environment of suitable vegetation normal growth, need a kind of device to realize that the alkali operation falls in automation, the control system and the sprinkling system that comprise series connection, control system comprises automatic control system in parallel and manual control system, and automatic control system comprises pH sensor-based system and the warning system of series connection.Concrete apparatus structure as shown in drawings, by pH value sensor 1, warning device 2, automatic control switch 3, spray appliance 4, hand control switch 5, formed, wherein pH value sensor 1, warning device 2, automatic control switch 3, spray appliance 4 are connected in series successively with circuit, and hand control switch 5 is connected in warning device 2 and automatic control switch 3 two ends in parallel.
PH value sensor 1 adopts switching regulator soil pH value sensor, has height alarm setting value function, is embedded in on-line real time monitoring in hole soil, to its default pH value cut off value of falling the aqueous slkali sprinkling.The real time measure value of 1 pair of hole soil alkalinity of pH value sensor and its default pH value cut off value of falling the aqueous slkali sprinkling compare, and control the folding of automatic control switch 3 as output signal, thereby start or stop spray appliance 4 sprinklings, fall aqueous slkali.
Warning device 2 is for detection of the working condition of pH value sensor 1, and when 1 energising of pH value sensor, when normal, warning device 2 is in channel status, and when break signal appears in pH value sensor 1, warning device 2 gives the alarm, and the demonstration fault.
When automatic control system goes wrong, can manually boot hand control switch 5, manual detection hole soil pH value, manually control spray appliance 4, to guarantee plant normal growth.
Remodeling method of the present invention and application of installation are planted in tall grass, after the plant cover concrete planting completes, alkali falls in opening device automatically immediately, and guarantee that the soil that detects keeps moisture state constantly, watchfully in the vegetation growth process regularly water, the maintenance work such as fertilising, desinsection, testing result is as follows:
Claims (6)
1. a vegetation concrete pore soil alkalinity remodeling method is characterized in that: preparation is fallen aqueous slkali and is sprayed on the hole soil of plant cover concrete, by the pH value of measuring hole soil, decides the sprinkling of falling aqueous slkali.
2. a kind of vegetation concrete pore soil alkalinity remodeling method according to claim 1, it is characterized in that: the described aqueous slkali that falls is Ca (H
2pO
4)
2solution, KH
2pO
4one or both of solution are compound.
3. a kind of vegetation concrete pore soil alkalinity remodeling method according to claim 1 is characterized in that: using measure hole soil pH value as 8.5 as the cut off value that determines to fall the aqueous slkali sprinkling.
4. a device of realizing vegetation concrete pore soil alkalinity remodeling method claimed in claim 1, it is characterized in that: comprise pH value sensor, warning device, automatic control switch, spray appliance, described pH value sensor, described warning device, described automatic control switch, described spray appliance are connected in series successively with circuit, and the measured value of described pH value sensor is as the signal that triggers described automatic control switch.
5. device according to claim 4, it is characterized in that: also comprise hand control switch, described hand control switch is connected in described warning device and described automatic control switch two ends in parallel.
6. device according to claim 4, is characterized in that: the pre-buried online detection formula of described pH value sensor employing.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310455898.7A CN103477746A (en) | 2013-09-29 | 2013-09-29 | Vegetation concrete pore soil alkalinity reconstruction method and device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310455898.7A CN103477746A (en) | 2013-09-29 | 2013-09-29 | Vegetation concrete pore soil alkalinity reconstruction method and device |
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| Publication Number | Publication Date |
|---|---|
| CN103477746A true CN103477746A (en) | 2014-01-01 |
Family
ID=49818625
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| CN201310455898.7A Pending CN103477746A (en) | 2013-09-29 | 2013-09-29 | Vegetation concrete pore soil alkalinity reconstruction method and device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108445198A (en) * | 2018-03-18 | 2018-08-24 | 天津市建筑科学研究院有限公司 | A kind of test method measuring eco-concrete pH |
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