Test board for testing caking performance of granular compound fertilizer

Abstract

The utility model discloses a testboard for testing caking performance of granular compound fertilizer, which comprises a bracket, a high-precision electronic balance, a constant-temperature and constant-humidity test box, a vacuum drying box and a vibration screening device which are arranged on an operating table, the bracket is used for storing a culture dish, the vibration screening device comprises a base, a first tray is elastically connected onto the base, and the first tray is arranged on the operating table. A vibration motor is fixedly installed at the bottom of the first tray, and a second tray is detachably connected into the first tray. Through the arrangement of the vibration screening device, in the process of separating granular compound fertilizer from caked compound fertilizer, the granular compound fertilizer falls into the second tray from the screen holes, then the caked compound fertilizer in the screen box is poured back to the culture dish, and after the caked compound fertilizer is weighed by a high-precision electronic balance, the caked compound fertilizer is screened by the vibration screening device. The caking rate of the compound fertilizer under the test temperature and humidity can be measured, the caked compound fertilizer does not need to be manually picked out, the use is more convenient, the test efficiency can be effectively improved, and the use effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of compound fertilizer testing, in particular to a test bench for testing the agglomeration performance of granular compound fertilizer. Background Art

[0002] Caking affects the properties and performance of compound fertilizers, making it a key quality indicator. Factors affecting compound fertilizer caking include raw material particle size, temperature, and humidity. Temperature, humidity, and pressure are the primary factors affecting fertilizer caking during storage and transportation. The influence of pressure can be adjusted manually, so testing compound fertilizer caking performance primarily focuses on testing its performance under varying temperature and humidity conditions.

[0003] At present, the caking performance test steps of compound fertilizer are as follows: put the accurately weighed dry compound fertilizer together with the culture dish into a constant temperature and humidity test chamber and treat it at the test temperature and humidity for a period of time, then take it out, use a vacuum drying oven to dry the compound fertilizer, and then put the compound fertilizer into an oscillator for shaking to separate the non-caked compound fertilizer particles from the agglomerated compound fertilizer particles, and then pick out the agglomerated compound fertilizer and weigh it, and calculate the ratio of the mass of the agglomerated compound fertilizer to the total mass of the compound fertilizer, that is, the caking rate of the compound fertilizer under the test temperature and humidity is obtained.

[0004] During the above-mentioned test process, most of the clumped compound fertilizers needed to be picked out manually by test personnel using tools such as tweezers. This operation was inefficient and prone to omissions, and needed to be improved. Utility Model Content

[0005] The purpose of the utility model is to provide a test bench for testing the agglomeration performance of granular compound fertilizer, so as to solve the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A test bench for testing the caking performance of granular compound fertilizer comprises a bracket placed on an operating table, a high-precision electronic balance, a constant temperature and humidity test chamber, a vacuum drying chamber, and an oscillating screening device, wherein the bracket is used to store culture dishes, and the oscillating screening device comprises a base, a first tray is elastically connected to the base, a vibration motor is fixedly installed on the bottom of the first tray, a second tray is detachably connected to the first tray, a sieve box is detachably connected to the second tray, a plurality of sieve holes are provided through the bottom of the sieve box, a plurality of legs are fixedly installed on the bottom of the sieve box, and the aperture of the sieve holes is adapted to the particle size of the granular compound fertilizer.

[0008] As a further solution of the present invention: a plurality of support bars are fixedly connected in the base, a plurality of springs are fixedly installed on the top of the support bars, and the top ends of the springs are fixedly connected to the bottom of the first tray.

[0009] As a further solution of the present invention: a plurality of first hand-tightened bolts are passed through the outer wall of the first tray through threaded holes, and the threaded ends of the first hand-tightened bolts abut against the outer wall of the second tray.

[0010] As a further solution of the present invention: a plurality of second hand-tightened bolts are provided through threaded holes on the outer wall of the second tray, and threaded ends of the second hand-tightened bolts abut against the outer wall of the sieve box.

[0011] As a further solution of the present invention: the top opening of the sieve box is detachably connected to a blocking cover.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] The utility model is provided with an oscillating screening device. In the process of separating granular compound fertilizer from agglomerated compound fertilizer, the granular compound fertilizer falls into the second tray through the sieve holes. Then, the agglomerated compound fertilizer in the sieve box is poured back into the culture dish and weighed with a high-precision electronic balance. The agglomeration rate of the compound fertilizer under the test temperature and humidity can be obtained. There is no need to manually pick out the agglomerated compound fertilizer, the utility model is more convenient to use, can effectively improve the test efficiency, and has a good use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The figure is a structural diagram of a test bench for testing the agglomeration performance of granular compound fertilizer.

[0015] Figure 2 The figure is a schematic diagram of the structure of an oscillating screening device in a test bench for testing the agglomeration performance of granular compound fertilizer.

[0016] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0017] Among them, the operating table 1, the bracket 2, the culture dish 3, the high-precision electronic balance 4, the constant temperature and humidity test chamber 5, the vacuum drying oven 6, the vibration screening device 7, the base 8, the support bar 9, the spring 10, the first tray 11, the second tray 12, the screen box 13, the screen hole 14, the support leg 15, the first hand-tightened bolt 16, the second hand-tightened bolt 17, and the vibration motor 18. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] See also Figures 1 to 3 In an embodiment of the utility model, a test bench for testing the agglomeration performance of granular compound fertilizer includes a bracket 2 placed on an operating table 1, a high-precision electronic balance 4, a constant temperature and humidity test chamber 5, a vacuum drying oven 6, and an oscillation screening device 7. The bracket 2 is used to store a culture dish 3, and the oscillation screening device 7 includes a base 8. A first tray 11 is elastically connected to the base 8, and a vibration motor 18 is fixedly installed at the bottom of the first tray 11. A second tray 12 is detachably connected to the first tray 11, and a sieve box 13 is detachably connected to the second tray 12. A plurality of sieve holes 14 are provided through the bottom of the sieve box 13, and a plurality of legs 15 are fixedly installed at the bottom of the sieve box 13. The aperture of the sieve hole 14 is adapted to the particle size of the granular compound fertilizer.

[0020] The utility model adopts the above scheme. When the caking performance of the granular compound fertilizer is tested, the accurately weighed dry compound fertilizer is placed together with the culture dish 3 in the constant temperature and humidity test box 5 to be treated with the test temperature and humidity for a period of time, and then taken out. The compound fertilizer is dried by using the vacuum drying box 6, and then the dried compound fertilizer is poured into the sieve box 13. Then, the vibration motor 18 is started to drive the sieve box 13 to vibrate through the first tray 11 and the second tray 12, so that in the process of separating the granular compound fertilizer from the agglomerated compound fertilizer, the granular compound fertilizer falls into the second tray 12 through the sieve hole 14, and then the agglomerated compound fertilizer in the sieve box 13 is poured back into the culture dish 3 and weighed by using the high-precision electronic balance 4, so as to obtain the agglomeration rate of the compound fertilizer under the test temperature and humidity. There is no need to manually pick out the agglomerated compound fertilizer, so the use is more convenient, the test efficiency can be effectively improved, and the use effect is good.

[0021] Specific combination Figure 2 In one embodiment of the present utility model, a plurality of support bars 9 are fixedly connected to the base 8, and a plurality of springs 10 are fixedly installed on the top of the support bars 9. The top ends of the springs 10 are fixedly connected to the bottom of the first tray 11. By setting the springs 10, the impact of the vibration motor 18 on the base 8 during operation can be reduced.

[0022] Specific combination Figure 2 、 Figure 3In one embodiment of the present invention, a plurality of first hand-tightening bolts 16 are provided on the outer wall of the first tray 11 through threaded holes, and the threaded ends of the first hand-tightening bolts 16 are abutted against the outer wall of the second tray 12 .

[0023] The provision of the first hand-tightened bolts 16 facilitates fixing the second tray 12 inside the first tray 11 .

[0024] Specific combination Figure 2 、 Figure 3 In one embodiment of the present invention, the outer wall of the second tray 12 is provided with a plurality of second hand-tightening bolts 17 through threaded holes, and the threaded ends of the second hand-tightening bolts 17 are abutted against the outer wall of the screen box 13. The setting of the second hand-tightening bolts 17 facilitates fixing the screen box 13 in the second tray 12.

[0025] In addition, in one embodiment of the present invention, the top opening of the sieve box 13 is detachably connected to a blocking cover (not shown in the figure). By setting the blocking cover, the top opening of the sieve box 13 can be blocked during the oscillation process to prevent the compound fertilizer particles from jumping out of the sieve box 13. The blocking cover and the sieve box 13 can be connected by magnetic connection, bolt connection, snap connection or other connection methods that are easy to disassemble and assemble.

[0026] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A test bench for testing the agglomeration performance of granular compound fertilizer, characterized by: The invention comprises a bracket (2) placed on an operating table (1), a high-precision electronic balance (4), a constant temperature and humidity test chamber (5), a vacuum drying chamber (6), and an oscillating screening device (7). The bracket (2) is used to store a culture dish (3). The oscillating screening device (7) comprises a base (8). A first tray (11) is elastically connected to the base (8). A vibration motor (18) is fixedly installed at the bottom of the first tray (11). A second tray (12) is detachably connected to the inside of the first tray (11). A sieve box (13) is detachably connected to the inside of the second tray (12). A plurality of sieve holes (14) are provided through the bottom of the sieve box (13). A plurality of legs (15) are fixedly installed at the bottom of the sieve box (13). The aperture of the sieve holes (14) is adapted to the particle size of the granular compound fertilizer.

2. The test bench for testing the caking performance of granular compound fertilizer according to claim 1, characterized in that: A plurality of support bars (9) are fixedly connected inside the base (8), a plurality of springs (10) are fixedly installed on the top of the support bars (9), and the top ends of the springs (10) are fixedly connected to the bottom of the first tray (11).

3. The test bench for testing the caking performance of granular compound fertilizer according to claim 1, characterized in that: The outer wall of the first tray (11) is provided with a plurality of first hand-tightening bolts (16) through threaded holes, and the threaded ends of the first hand-tightening bolts (16) abut against the outer wall of the second tray (12).

4. The test bench for testing the caking performance of granular compound fertilizer according to claim 1, characterized in that: The outer wall of the second tray (12) is provided with a plurality of second hand-tightening bolts (17) through threaded holes, and the threaded ends of the second hand-tightening bolts (17) are in contact with the outer wall of the screen box (13).

5. The test bench for testing the caking performance of granular compound fertilizer according to claim 1, characterized in that: The top opening of the sieve box (13) is detachably connected to a blocking cover.

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