CN218272291U

CN218272291U - Soil acidity conditioner screening test device with constant moisture

Info

Publication number: CN218272291U
Application number: CN202221930755.8U
Authority: CN
Inventors: 李艳; 吴春艳; 唐旭; 尹昌; 陈义
Original assignee: Zhejiang Academy of Agricultural Sciences
Current assignee: Zhejiang Academy of Agricultural Sciences
Priority date: 2022-07-26
Filing date: 2022-07-26
Publication date: 2023-01-10
Anticipated expiration: 2032-07-26

Abstract

The utility model relates to a invariable soil acid amendment screening test device of moisture solves the problem of the test result deviation that the soil moisture content change leads to among the current soil acid amendment screening test process. Set up the same test assembly of a plurality of cover structures on this device workstation, test assembly includes weighing transducer, the weighing transducer top is equipped with the tray, place the soil basin on the tray, the soil sample is equipped with in the soil basin, it is equipped with the pH sensor to insert in the soil sample, the unsettled cover of soil basin top contactless is equipped with the shade, one side of weighing transducer is equipped with the stand that supports the shade, the shade top is inlayed and is equipped with the mount pad, be equipped with moisturizing nozzle and air exhaust nozzle on the mount pad, the moisturizing nozzle is connected with the water pump, air exhaust nozzle is connected with the aspiration pump. The utility model discloses a weight control manages soil sample moisture in to the experiment, and bleeds to the gas that produces and collect, both provides the basis for subsequent ammonia nitrogen loss survey, has avoided reaction gas to accumulate in the laboratory environment again.

Description

Soil acidity conditioner screening test device with constant moisture

Technical Field

The utility model belongs to soil environment handles the field, relates to a soil treatment's test device, relates to a invariable soil acidity conditioner screening test device of moisture.

Background

China is a big traditional agricultural country, agricultural products are rich in variety, and almost all agricultural products are produced by depending on soil planting. Different agricultural products have different adaptability demands on soil, and some soils are acidic due to environmental factors and long-term planting factors, so that the soil ingredients are unfavorable for planting of the agricultural products. Through many years of research, technologists develop various soil acid conditioners, different soil acid conditioners have different application ranges, soil needs to be sampled according to specific soil conditions, then different soil acid conditioners are used for carrying out screening tests, and an optimal scheme is selected to obtain a better effect. The screening test of the soil acid conditioner is long, and in the test process, under different reaction mechanisms of the soil acid conditioner, moisture can be evaporated to different degrees, so that the test result is deviated.

Disclosure of Invention

The utility model aims to solve the problem of the test result deviation that the soil moisture content change leads to among the current soil acid amendment screening test process, provide a soil acid amendment screening test device of moisture invariant, utilize weighing sensor to carry out moisture management to the soil sample, carry out the timing detection to soil pH value simultaneously, and collect the volatile gas in each soil sample conditioning test respectively, and collect the ammonia in the gas, provide preparation for the survey evaluation of nitrogen loss.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a invariable soil acidity conditioner screening test device of moisture, includes the workstation, its characterized in that: set up the same test assembly of a plurality of cover structures on the workstation, test assembly includes weighing transducer, and the weighing transducer top is equipped with the tray, places soil basin on the tray, is equipped with the soil sample in the soil basin, and it is equipped with the pH sensor to insert in the soil sample, and the unsettled cover of soil basin top contactless is equipped with the shade, and one side of weighing transducer is equipped with the stand that supports the shade, the shade top is inlayed and is equipped with the mount pad, is equipped with moisturizing nozzle and suction nozzle on the mount pad, and the moisturizing nozzle is connected with the water pump, and the suction nozzle is connected with the aspiration pump. In the device, each test component is used for contrast test of a plurality of groups of soil samples, a plurality of groups of soil samples with the same quality are separated from the same batch of soil and placed in each soil basin, different acidic conditioners are mixed into each group of soil samples, the acidic conditioners generally select minerals, lime, organic materials and the like, after pH sensors are inserted, the soil basins are respectively placed on trays of the test components, weight sensors of the test components are respectively set to be zero or record current readings, in the test process, the soil can generate a plurality of reaction gases, but compared with main quality loss-water evaporation can be ignored, different acidic conditioners have different reaction mechanisms, the water loss degrees in the test process are different, when the readings of the weight sensors are reduced to exceed a threshold value, water is supplemented to the soil samples through a water supplementing nozzle, and the water content of the samples is kept in a stable range. The extraction nozzle extracts and collects reaction gas generated by soil conditioning at a constant speed, qualitative color development or quantitative titration can be carried out, and ammonia nitrogen loss in the conditioning process is measured. Meanwhile, air flow and reaction gas diffusion of an open space of a field can be simulated under a laboratory environment by constant-speed air extraction, and harmful gas accumulation in the laboratory is avoided.

Preferably, the shade is a hemispherical shell-shaped transparent cover body. And observing the physical properties of the soil sample through a shade.

Preferably, the upright post is provided with a sliding block which can be adjusted up and down and is fixed, the shade is hinged with the sliding block, and the shade can swing up and down around a hinged shaft. The shade height is adjusted to the slider to adapt to the not co-altitude soil basin of different sample volumes, the shade can the luffing motion convenient operation.

Preferably, the surface of one side of the shield, which faces the stand column, is provided with a magnetic rubber strip, and the magnetic rubber strip adsorbs the stand column when the shield swings upwards. The shade can adsorb fixedly on the stand when turning over, and convenient operation has the space obstacle when magnetism adhesive tape adsorbs with the stand, can set up the arch at the top surface of shade.

Preferably, the upright is a square stainless steel upright. The square upright posts avoid the slide block from rotating, and meanwhile, the cover is convenient to adsorb and fix.

Preferably, the lower end of the water replenishing nozzle is lower than the lower end of the suction nozzle.

Preferably, the water replenishing nozzle is connected with the water pump through a hose, and the air suction nozzle is connected with the air suction pump through a hose.

Preferably, the air suction nozzle is connected with a collecting bottle through an air suction pump, a solvent for collecting ammonia gas is filled in the collecting bottle, a bottle plug is arranged at the opening of the collecting bottle, an air inlet pipe and an air outlet pipe are inserted at the bottle plug, the upper end of the air inlet pipe is connected with the air suction pump, the lower end of the air inlet pipe is inserted below the liquid level of the solvent, the lower end of the air outlet pipe is inserted above the liquid level of the solvent in the collecting bottle, and the upper end of the air outlet pipe is open. The solvent can be water directly and is used for collecting ammonia gas, a certain color reagent of harmful gas can be added into the solvent, whether certain conditioner is used to generate harmful gas or not is qualitatively evaluated, and the collecting bottle adopts a brown light-resistant bottle.

The utility model discloses a weight control manages soil sample moisture in to the experiment, guarantees that soil sample moisture is in a relatively invariable interval in, and the assurance test is accurate, and takes care of the gas of reaction to soil and collect, both provides the basis for subsequent ammonia nitrogen loss survey, has avoided reaction gas accumulation in the laboratory environment again.

Drawings

The present invention will be further explained with reference to the accompanying drawings.

Fig. 1 is a schematic structural view of the testing assembly of the present invention.

Fig. 2 is a schematic diagram of the turning-up structure of the mask for testing assembly of the present invention.

Figure 3 is the utility model discloses experimental subassembly ammonia is collected the structure sketch map.

Fig. 4 is a schematic structural diagram of the multi-test assembly of the present invention.

In the figure: 1. workstation, 2, weighing transducer, 3, tray, 4, soil basin, 5, pH value sensor, 6, shade, 7, mount pad, 8, moisturizing nozzle, 9, suction nozzle, 10, magnetism adhesive tape, 11, stand, 12, slider, 13, adjusting bolt, 14, articulated shaft, 15, receiving flask, 16, solvent, 17, intake pipe, 18, outlet duct.

Detailed Description

The present invention will be further described with reference to the following specific embodiments and accompanying drawings.

Example (b): a test device for screening soil acidic conditioner with constant water content is shown in figure 4. The device comprises a workbench, wherein a plurality of sets of test assemblies with the same structure are arranged on the workbench.

The test assembly structure is shown in fig. 1 and 2. The test assembly comprises a weight sensor 2, a tray 3 is arranged above the weight sensor, a soil basin 4 is arranged on the tray, a soil sample is arranged in the soil basin, a pH sensor 5 is inserted in the soil sample, a non-contact suspension cover is arranged above the soil basin and provided with a shade 6, and an upright post 11 for supporting the shade is arranged on one side of the weight sensor. Stand 11 is square stainless steel stand, and stand 11 embraces and is equipped with slider 12 that can adjust from top to bottom and fix, and the slider side is equipped with lockable adjusting bolt 13, shade 6 is articulated with the slider, and the shade can be around articulated shaft 14 luffing motion. Shade 6 is the transparent plastic material cover body of hemisphere shell form, the shade top is inlayed and is equipped with mount pad 7, is equipped with moisturizing nozzle 8 and suction nozzle 9 on the mount pad, and moisturizing nozzle 8 adopts hose connection to have a water pump, and suction nozzle 9 adopts hose connection to have the aspiration pump. The lower end of the water replenishing nozzle 8 is lower than the lower end of the air suction nozzle 9, and the lower end of the water replenishing nozzle adopts a shower nozzle. The surface of one side of the shade 6 facing the upright post 11 is provided with a magnetic rubber strip 10, and when the shade swings upwards, the magnetic rubber strip adsorbs the upright post 11. In this embodiment, the magnetic strip 10 is provided with a boss on the mask.

As shown in fig. 3, the air suction nozzle 9 is connected with a collecting bottle 15 through an air suction pump, a solvent 16 for collecting ammonia gas is arranged in the collecting bottle, the solvent can be directly used for water, a bottle plug is arranged at the opening of the collecting bottle, an air inlet pipe 17 and an air outlet pipe 18 are inserted at the bottle plug, the upper end of the air inlet pipe is connected with the air suction pump, the lower end of the air inlet pipe is inserted below the liquid level of the solvent, the lower end of the air outlet pipe is inserted above the liquid level of the solvent in the collecting bottle, and the upper end of the air outlet pipe is open.

The soil test components are used for contrast test of multiple groups of soil samples, multiple groups of soil samples with the same quality are taken from the same batch of soil and placed in soil basins, different acidic conditioners are mixed into each group of soil samples, the acidic conditioners are generally selected from minerals, lime, organic materials and the like, after pH sensors are inserted, the soil basins are placed on trays of the test components respectively, weight sensors of the test components are set to be zero or record current readings respectively, in the test process, the soil can generate multiple reaction gases, but compared with main quality loss, namely water evaporation can be ignored, different acidic conditioners have different reaction mechanisms, the water loss degrees in the test process are different, when the readings of the weight sensors are reduced to exceed a threshold value, water is supplemented to the soil samples through water supplementing nozzles, and the water of the samples is kept within a stable range. The extraction nozzle extracts and collects reaction gas generated by soil conditioning at a constant speed, qualitative color development or quantitative titration can be carried out, and ammonia nitrogen loss in the conditioning process is measured. Meanwhile, air flow and reaction gas diffusion of an open space of a field can be simulated under a laboratory environment by constant-speed air extraction, and harmful gas accumulation in the laboratory is avoided.

Claims

1. The utility model provides a invariable soil acidity conditioner screening test device of moisture, includes the workstation, its characterized in that: set up the same test assembly of a plurality of cover structures on the workstation, test assembly includes weighing transducer, and the weighing transducer top is equipped with the tray, places soil basin on the tray, is equipped with the soil sample in the soil basin, and it is equipped with the pH sensor to insert in the soil sample, and the unsettled cover of soil basin top contactless is equipped with the shade, and one side of weighing transducer is equipped with the stand that supports the shade, the shade top is inlayed and is equipped with the mount pad, is equipped with moisturizing nozzle and suction nozzle on the mount pad, and the moisturizing nozzle is connected with the water pump, and the suction nozzle is connected with the aspiration pump.

2. The soil acid conditioner screening test device with constant moisture content according to claim 1, characterized in that: the shade is a hemispherical shell-shaped transparent shade body.

3. The soil acid conditioner screening test device with constant moisture content according to claim 1 or 2, characterized in that: the stand is embraced and is equipped with slider that can adjust from top to bottom and fix, the shade is articulated with the slider, and the shade can be around the articulated shaft luffing motion.

4. The soil acid conditioner screening test device with constant moisture content according to claim 3, characterized in that: the surface of the shield towards one side of the stand column is provided with a magnetic adhesive tape, and the magnetic adhesive tape adsorbs the stand column when the shield swings upwards.

5. The soil acid conditioner screening test device with constant moisture content according to claim 1 or 2, characterized in that: the upright posts are square stainless steel upright posts.

6. The soil acid conditioner screening test device with constant moisture content according to claim 1 or 2, characterized in that: the lower end of the water replenishing nozzle is lower than the lower end of the air suction nozzle.

7. The soil acid conditioner screening test device with constant moisture content according to claim 1 or 2, characterized in that: the water replenishing nozzle is connected with the water pump through a hose, and the air suction nozzle is connected with the air suction pump through a hose.

8. The soil acid conditioner screening test device with constant moisture content according to claim 1 or 2, characterized in that: the air suction nozzle is connected with a collecting bottle through an air suction pump, a solvent for collecting ammonia gas is filled in the collecting bottle, the bottle mouth of the collecting bottle is provided with a bottle plug, an air inlet pipe and an air outlet pipe are inserted at the bottle plug, the upper end of the air inlet pipe is connected with the air suction pump, the lower end of the air inlet pipe is inserted below the liquid level of the solvent, the lower end of the air outlet pipe is inserted above the liquid level of the solvent in the collecting bottle, and the upper end of the air outlet pipe is open.