CN212872340U - Quick detection device of chemical fertilizer nitrogen content - Google Patents
Quick detection device of chemical fertilizer nitrogen content Download PDFInfo
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- CN212872340U CN212872340U CN202022055193.4U CN202022055193U CN212872340U CN 212872340 U CN212872340 U CN 212872340U CN 202022055193 U CN202022055193 U CN 202022055193U CN 212872340 U CN212872340 U CN 212872340U
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- condenser
- heater
- base support
- bottle
- nitrogen content
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Abstract
The utility model relates to a quick detection device of chemical fertilizer nitrogen content, the device include base support and three detecting element that set up side by side constitute, detecting element includes temperature controller, heater, azotometer bottle, liquid feeder, coupling hose, pipe, condenser and receiver, temperature controller corresponds the heater setting on one side operation panel of base support, and temperature controller is connected with the heater electricity, the heater sets up on the base support, and the azotometer bottle sets up on the heater, the liquid feeder is connected on the azotometer bottle, and the liquid feeder is connected with the condenser through coupling hose and pipe, the receiver sets up below the condenser; and the upper part and the lower part of each condenser are connected with latex water pipes. The utility model has the advantages of simple and reasonable structure, through the base support, adopt the parallelly connected method of many sets of heaters, condenser, integrate distillation plant, realize that a plurality of samples can survey simultaneously, improved inspection speed.
Description
Technical Field
The utility model relates to a chemical fertilizer nitrogen content detects technical field, specific chemical fertilizer nitrogen content short-term test device that says so.
Background
With the rapid development of agricultural economy and the general popularization of agricultural technology, the agricultural market has unprecedented prosperity, and chemical fertilizers are used as leading products in the agricultural market, so that the varieties are various, the brands are all the same, but the phenomenon of fish and dragon mixing also exists. In order to control the quality of the fertilizer products, manufacturers need internal quality control, and law enforcement departments such as market supervision and the like need to check and detect the fertilizer products in order to supervise the product quality of the fertilizer and protect the vital interests of consumers. The objective fact that the tested samples have many batches and long test period and scientific and accurate test detection data cannot be provided in a short time is faced, and the test detection efficiency is improved, so that the problem needs to be solved urgently before people.
At present, many rapid measuring instruments are used for measuring nitrogen contents of food, feed, milk products, soil and the like in China, but no rapid analyzer special for measuring the nitrogen content of chemical fertilizers is available.
The principle of domestic rapid measuring instruments for measuring the nitrogen content of food, feed, milk products, soil and the like does not meet the measuring requirement of the total nitrogen content in the GB/T8572 compound fertilizer, and the speed of the existing fertilizer nitrogen automatic analyzer in the market is the same as that of the original analysis method, so that the existing fertilizer nitrogen automatic analyzer is not suitable for large-scale analysis.
Disclosure of Invention
The utility model aims at providing a chemical fertilizer nitrogen content short-term test device, the device simple structure is reasonable, through the base support, adopts the parallelly connected method of many sets of heaters, condenser, integrates distillation plant, realizes that a plurality of samples can survey simultaneously, has improved inspection speed.
The utility model aims at realizing the device, the device comprises a base support and three detection units arranged side by side, wherein the detection units comprise a temperature regulator, a heater, a nitrogen fixing bottle, a liquid adding device, a connecting hose, a conduit, a condenser and a receiver, the temperature regulator corresponds to the heater and is arranged on an operation table at one side of the base support, the temperature regulator is electrically connected with the heater, the heater is arranged on the base support, the nitrogen fixing bottle is arranged on the heater, the liquid adding device is connected on the nitrogen fixing bottle, the liquid adding device is connected with the condenser through the connecting hose and the conduit, and the receiver is arranged below the condenser; and the upper part and the lower part of each condenser are connected with latex water pipes.
The utility model has the advantages and the technical effect be:
1. the utility model discloses a total nitrogen assay distillation plant improves at original GB/T8572 compound thoughtlessly fertile, through making the universal elevating platform that removes, adopts the parallelly connected method of many sets of heating jackets, condenser, integrates distillation plant, realizes that a plurality of samples can survey simultaneously, improves inspection speed.
2. The utility model discloses chemical fertilizer nitrogen content short-term test device can practice thrift cooling water 65%, practices thrift artifical consumption 50%, the effectual energy of having practiced thrift.
3. The utility model has the advantages of simple and reasonable structure, detection speed is fast, and data is accurate, has improved work efficiency.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a left side view of fig. 1 according to the present invention.
Detailed Description
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings.
Shown in attached figures 1 and 2: a quick detection device for nitrogen content in chemical fertilizer comprises a base support 11 and three detection units arranged side by side, wherein each detection unit comprises a temperature regulator 1, a heater 2, a nitrogen fixing bottle 3, a liquid filler 4, a connecting hose 5, a conduit 6, a condenser 7 and a receiver 8, the temperature regulator 1 is arranged on an operation table on one side of the base support 11 corresponding to the heater 2, the temperature regulator 1 is electrically connected with the heater 2, the heater 2 is arranged on the base support 11, the nitrogen fixing bottle 3 is arranged on the heater 2, the liquid filler 4 is connected to the upper surface of the nitrogen fixing bottle 3, the liquid filler 4 is connected with the condenser 7 through the connecting hose 5 and the conduit 6, and the receiver 8 is arranged below the condenser 7; and the upper part and the lower part of each condenser 7 are connected with a latex water pipe.
Shown in figure 2: the latex water pipe 9 above the left condenser 7 is connected to the lower part of the middle condenser 7, the latex water pipe 17 above the middle condenser 7 is connected to the lower part of the right condenser 7, the latex water pipe 10 below the left condenser 7 is connected with a water source (tap water), and the latex water pipe 18 above the right condenser 7 is connected with a water outlet.
Shown in attached figures 1 and 2: one side of base support 11 has three vertical first branch 13 that sets up side by side, first branch 13 is fixed nitrogen bottle 3 through burning bottle clamp 15.
The middle part of the seat support 11 is provided with three second support rods 12 which are vertically arranged side by side, and the condenser 7 is fixed by the second support rods 12 through universal clamps 14.
The specific operation method comprises the following steps:
(1) and moving the left flask clamp 15 in the left detection unit upwards to remove the nitrogen fixing bottle 3 from the heater 2, and adding the treated sample, a proper amount of distilled water (250-400 mm) and an anti-explosion boiling substance into the nitrogen fixing bottle 3.
(2) And putting the left nitrogen fixing bottle 3 on the heater 2 to be connected with the liquid filler 4, coating silicone grease at the ground connection part for sealing, and moving the flask clamp 15 downwards to fix the nitrogen fixing bottle 3.
(3) The left universal clamp 14 is loosened and the condenser 7 is moved upwards to remove the receiver 8, and 40.0mL of sulfuric acid solution [ (1/2H) is added to the receiver 82SO4)＝0.5mol/L]Or 20mL sulfuric acid solution [ (1/2H)2SO4)＝1mol/L]And 4-5 drops of mixed indicator, and adding a proper amount of distilled water to ensure that the spherical gas outlet is sealed.
(4) And connecting the left receiver 8 with the condenser 7, coating silicone grease at the grinding joint for sealing, and screwing the universal clamp 14 to fix the condenser 7.
(5) And adding a sodium hydroxide solution (400g/L, the adding amount is according to the measurement standard requirement of the total nitrogen content in the GB/T8572 compound fertilizer) from the liquid adding opening of the liquid adding device 4 on the left side, adding 20-30 mL of water to flush the liquid adding device 4 when the solution is completely drained, and closing the piston when 3-5 mL of water is left.
(6) And opening a water source (tap water) valve and opening cooling water.
(7) And the heater 2 is started, and the temperature regulator 1 is regulated to regulate the heat supply intensity according to the foam generation degree when the liquid in the nitrogen bottle 3 is boiled, so that the foam overflow or liquid drop carrying-out is avoided.
(8) The middle and right detection units operate as above.
(9) After distilling at least 150mL of distillate in the left receiver 8, the outlet of the condenser is checked for drops using pH paper, and the distillation is terminated if there is no alkalinity.
(10) The left universal clamp 14 is loosened and the condenser 7 is moved upwards to take off the receiver 8, and excess sulfuric acid is back titrated with sodium hydroxide standard solution [ c (naoh) ═ 0.5mol/L ] until the indicator mixture is grayish green.
(11) The middle and right detection units operate as above.
(12) Calculating the result
Wherein:
c: concentration of standard titration solution, mol/L
0.01401: the number of millimolar masses of nitrogen is given in grams per mole (g/mol).
V2: in the blank test, the volume of the standard titration solution, mL, is consumed
V1: the volume of the titration solution, mL, of the standard solution was consumed for the assay
m is the mass of the sample, g.
Claims (4)
1. The utility model provides a quick detection device of chemical fertilizer nitrogen content which characterized in that: the device comprises a base support and three detection units arranged side by side, wherein each detection unit comprises a temperature regulator, a heater, a nitrogen fixing bottle, a liquid filler, a connecting hose, a conduit, a condenser and a receiver, the temperature regulator is arranged on an operation table on one side of the base support corresponding to the heater, the temperature regulator is electrically connected with the heater, the heater is arranged on the base support, the nitrogen fixing bottle is arranged on the heater, the liquid filler is connected to the upper surface of the nitrogen fixing bottle, the liquid filler is connected with the condenser through the connecting hose and the conduit, and the receiver is arranged below the condenser; and the upper part and the lower part of each condenser are connected with latex water pipes.
2. The device for rapidly detecting the nitrogen content of the chemical fertilizer as claimed in claim 1, wherein: the latex water piping connection of left side condenser top is to the below of middle part condenser, and the latex water piping connection of the top of middle part condenser is to the below of right side condenser, the latex water piping connection water source of left side condenser below, the latex water piping connection outlet of the top of right side condenser 7.
3. The device for rapidly detecting the nitrogen content of the chemical fertilizer as claimed in claim 1, wherein: one side of base support has the first branch of three vertical settings side by side, first branch is fixed the azotometer bottle through the fever bottle clamp.
4. The device for rapidly detecting the nitrogen content of the chemical fertilizer as claimed in claim 1, wherein: the middle part of the seat support is provided with three vertical second supporting rods arranged side by side, and the second supporting rods are used for fixing the condenser through universal clamps.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022055193.4U CN212872340U (en) | 2020-09-18 | 2020-09-18 | Quick detection device of chemical fertilizer nitrogen content |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022055193.4U CN212872340U (en) | 2020-09-18 | 2020-09-18 | Quick detection device of chemical fertilizer nitrogen content |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212872340U true CN212872340U (en) | 2021-04-02 |
Family
ID=75197976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022055193.4U Expired - Fee Related CN212872340U (en) | 2020-09-18 | 2020-09-18 | Quick detection device of chemical fertilizer nitrogen content |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212872340U (en) |
-
2020
- 2020-09-18 CN CN202022055193.4U patent/CN212872340U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210402 Termination date: 20210918 |