Device for preparing humic acid by using ammonium sulfite

Abstract

The utility model discloses a device for preparing humic acid by using ammonium sulfite, and belongs to the technical field of humic acid preparation. Comprising a storage device, a conveying device, a preparation device, an efflux pump, a finished product tank, a conveying pump, an evaporator and a filling machine, the lower end of the storage device is connected with the conveying device, the preparation device is located on the lower portion of the output end of the conveying device, the preparation device is connected with the finished product tank through the efflux pump, and the finished product tank is connected with the evaporator and / or the filling machine through the conveying pump. According to the device for preparing the humic acid by utilizing the ammonium sulfite, waste gas is avoided, and the fertilizer efficiency of the prepared active humic acid is multiple.

Description

Technical Field

[0001] The utility model relates to a device for preparing humic acid by utilizing ammonium sulfite, and belongs to the technical field of humic acid preparation. Background Art

[0002] Humic acid, as a multi-chain organic matter, can increase crop yields, improve soil structure, and is widely used in agricultural production.

[0003] Humic acid used in agriculture mainly comes from weathered coal (lignite). However, under natural conditions, the humic acid contained in it generally forms insoluble substances with calcium, magnesium, etc., and the direct application effect is poor. In order for humic acid to form soluble compounds in the solution, it needs to be activated.

[0004] Traditional activation methods generally use grinding activation methods, strong acid or strong base oxidation methods.

[0005] The Chinese invention patent application CN116239426A published on June 9, 2023 discloses a high-concentration potassium humate compound fertilizer and a preparation method thereof; the method comprises the following steps: step one: adding large-particle coal blocks into a reaction tank, and adding water and dispersant to the reaction tank; step two: crushing the large-particle coal blocks; step three: adding alkali to react, extracting small molecular carbon chains and trace elements in the coal blocks, and obtaining water-soluble potassium humate after the slurry is dried; the composition of the potassium humate compound fertilizer prepared by the preparation method of potassium humate compound fertilizer provided by the present application includes: water-soluble potassium humate, urea and potassium hydroxide; in the process of extracting humic acid from lignite, the patent application crushes and stirs large pieces of lignite, so that the lignite does not need to be pre-processed into small pieces, thereby simplifying the production process of potassium humate, and reducing the exposure time of lignite in the air, reducing the occurrence of lignite spontaneous combustion, and increasing production safety.

[0006] The Chinese invention patent application CN112011066A published on December 1, 2020 discloses a production process for high-purity humic acid, which includes crushing, one pickling, one solid-liquid separation, alkali extraction, two solid-liquid separations, and three consecutive pickling and corresponding solid-liquid separations to obtain humic acid precipitates. The humic acid precipitates finally obtained are dried using a vacuum dryer to obtain high-purity humic acid. The utility model first uses hydrochloric acid to centrifugally separate the substances soluble in acidic solutions from the humic acid in the raw materials, and then adds a dilute alkali solution to dissolve and extract the humic acid, and centrifugally separates the substances insoluble in alkaline solutions from the humic acid, and finally adjusts the concentration of the hydrochloric acid solution and adds it in batches to achieve the purification of the humic acid.

[0007] However, the disadvantages of the mechanical grinding method are that the technical effect is weak, the content of water-soluble humic acid in the prepared humic acid is low, and the effect of promoting crop growth is poor; while the disadvantages of the strong acid and strong alkali oxidation method for preparing humic acid are that waste gas and waste liquid will be generated during the preparation process, and the active humic acid fertilizer element produced is single.

[0008] Therefore, providing a device for preparing humic acid using ammonium sulfite to avoid the generation of waste gas and to prepare active humic acid with multiple fertilizer effects has become a technical problem that urgently needs to be solved in this technical field. Utility Model Content

[0009] The utility model aims to provide a device for preparing humic acid by utilizing ammonium sulfite, which avoids the generation of waste gas and has multiple fertilizer effects of the prepared active humic acid.

[0010] In order to achieve the above purpose, the technical solution provided by the utility model is:

[0011] A device for preparing humic acid by using ammonium sulfite, characterized in that it comprises a storage device, a conveying device, a preparation device, an efflux pump, a finished product tank, a conveying pump, an evaporator, and a filling machine; the lower end of the storage device is connected to the conveying device, the preparation device is located at the lower part of the output end of the conveying device, the preparation device is connected to the finished product tank through the efflux pump, and the finished product tank is respectively connected to the evaporator and / or the filling machine through the conveying pump.

[0012] Preferably, the conveying device is a metering conveyor.

[0013] Preferably, the preparation device is equipped with a stirring device.

[0014] Another object of the utility model is to provide a method for preparing humic acid by utilizing ammonium sulfite, which avoids the generation of waste gas and waste, and the prepared active humic acid has multiple fertilizer effects.

[0015] In order to achieve the above purpose, the technical solution provided by the utility model is:

[0016] A method for preparing humic acid using ammonium sulfite, the steps are as follows:

[0017] (1) The lignite is stored in a storage device and quantitatively fed into a preparation device through a conveying device;

[0018] (2) the preparation device is pre-filled with an ammonium sulfite solution, and the lignite in the preparation device reacts chemically with the ammonium sulfite solution to generate an active humic acid solution;

[0019] (3) After a certain reaction time, the active humic acid solution is discharged into the finished product tank through an external discharge pump;

[0020] (4) The active humic acid solution in the finished product tank has two destinations. One is to enter the evaporator through the delivery pump to evaporate the water in the solution to form dry active humic acid; the other is to enter the filling machine through the delivery pump to directly produce the active humic acid solution.

[0021] Preferably, in step (2), the reaction ratio of the lignite to the ammonium sulfite in the ammonium sulfite solution in the preparation device is controlled at 1:5-1:15, with the units being g and ml respectively.

[0022] Preferably, in step (2), the reaction temperature of the preparation device is controlled at 15°C-65°C.

[0023] Preferably, in step (2), the preparation device is provided with a stirrer.

[0024] Preferably, in step (2), the stirring speed of the stirrer is controlled at 60-300 r / min.

[0025] Preferably, in step (2), the purity of the ammonium sulfite solution in the preparation device is controlled at 50 wt %-100 wt %.

[0026] Beneficial effects:

[0027] The utility model discloses a device and a method for preparing humic acid by utilizing ammonium sulfite, which avoids the generation of waste gas, and the prepared active humic acid has multiple fertilizer effects.

[0028] The present invention is further described below through the accompanying drawings and specific implementation modes, but it is not intended to limit the protection scope of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the structure of a device for preparing humic acid using ammonium sulfite in Example 1 of the utility model.

[0030] Description of main reference numerals:

[0031] 1 Storage tank 2 Measuring conveyor

[0032] 3 mixers 4 preparation tanks

[0033] 5 external discharge pump 6 finished product tank

[0034] 7 delivery pump 8 evaporator

[0035] 9Filling Machine DETAILED DESCRIPTION

[0036] Unless otherwise specified, in the embodiments of the present invention, the components used are conventional components available on the market in the technical field, the connections between the components are conventional connections, and the units are weight units.

[0037] Example 1

[0038] like Figure 1 As shown, it is a schematic diagram of the structure of the device for preparing humic acid by using ammonium sulfite according to Example 1 of the utility model; wherein 1 is a storage tank, 2 is a metering conveyor, 3 is a stirrer, 4 is a preparation tank, 5 is an external discharge pump, 6 is a finished product tank, 7 is a delivery pump, 8 is an evaporator, and 9 is a filling machine; the device for preparing humic acid by using ammonium sulfite according to Example 1 of the utility model comprises a storage tank 1, a metering conveyor 2, a stirrer 3, a preparation tank 4, an external discharge pump 5, a finished product tank 6, a delivery pump 7, an evaporator 8, and a filling machine 9; the lower end of the storage tank 1 is connected to the metering conveyor 2, the preparation tank 4 is located at the lower part of the output end of the metering conveyor 2, the preparation tank 4 is equipped with a stirrer 3, the preparation tank 4 is connected to the finished product tank 6 through the external discharge pump 5, and the finished product tank 6 is respectively connected to the evaporator 8 and the filling machine 9 through the delivery pump 7;

[0039] The preparation steps of humic acid prepared by using ammonium sulfite in Example 1 of the present utility model are as follows:

[0040] (1) The lignite is stored in a storage tank 1 and fed quantitatively into a preparation tank 4 by a metering conveyor 2;

[0041] (2) The preparation tank 4 is pre-filled with an ammonium sulfite solution, and the lignite in the preparation tank 4 reacts chemically with the ammonium sulfite solution under the stirring action of the stirrer 3 to generate an active humic acid solution;

[0042] (3) After a certain reaction time, the active humic acid solution is discharged into the finished product tank 6 through the external discharge pump 5;

[0043] (4) The active humic acid solution in the finished product tank 6 has two destinations. One is to enter the evaporator 8 through the delivery pump 7 to evaporate the water in the solution to form dry active humic acid 1; the other is to enter the filling machine 9 through the delivery pump 7 to directly produce the active humic acid solution 1;

[0044] The reaction ratio of lignite to ammonium sulfite in the preparation tank 4 is controlled at 1:10, in units of g and ml respectively; the reaction temperature is controlled at 40° C., the speed of the stirrer 3 is controlled at 180 r / min, and the purity of the ammonium sulfite solution is controlled at 75% by weight.

[0045] Example 2

[0046] The preparation steps of humic acid prepared by using ammonium sulfite in Example 2 of the present utility model are as follows:

[0047] (1) The lignite is stored in a storage tank 1 and fed quantitatively into a preparation tank 4 by a metering conveyor 2;

[0048] (2) The preparation tank 4 is pre-filled with an ammonium sulfite solution, and the lignite in the preparation tank 4 reacts chemically with the ammonium sulfite solution under the stirring action of the stirrer 3 to generate an active humic acid solution;

[0049] (3) After a certain reaction time, the active humic acid solution is discharged into the finished product tank 6 through the external discharge pump 5;

[0050] (4) The active humic acid solution in the finished product tank 6 enters the evaporator 8 through the delivery pump 7, and the water in the solution is evaporated to form dry active humic acid 2;

[0051] The reaction ratio of lignite to ammonium sulfite in the preparation tank 4 is controlled at 1:15, with the units of g and ml respectively; the reaction temperature is controlled at 15° C., the speed of the stirrer 3 is controlled at 300 r / min, and the purity of the ammonium sulfite solution is controlled at 50% by weight.

[0052] Example 3

[0053] The preparation steps of humic acid prepared by using ammonium sulfite in Example 3 of the present utility model are as follows:

[0054] (1) The lignite is stored in a storage tank 1 and fed quantitatively into a preparation tank 4 by a metering conveyor 2;

[0055] (2) The preparation tank 4 is pre-filled with an ammonium sulfite solution, and the lignite in the preparation tank 4 reacts chemically with the ammonium sulfite solution under the stirring action of the stirrer 3 to generate an active humic acid solution;

[0056] (3) After a certain reaction time, the active humic acid solution is discharged into the finished product tank 6 through the external discharge pump 5;

[0057] (4) The active humic acid solution in the finished product tank 6 enters the filling machine 9 through the delivery pump 7, and the active humic acid solution 2 is directly produced;

[0058] The reaction ratio of lignite to ammonium sulfite in the preparation tank 4 is controlled at 1:5, in units of g and ml respectively; the reaction temperature is controlled at 65° C., the speed of the stirrer 3 is controlled at 60 r / min, and the purity of the ammonium sulfite solution is controlled at 50% by weight.

[0059] Product testing:

[0060] The products obtained in test examples 1-2 have humic acid contents of 30% and 31% respectively, ammonium sulfate contents of 70% and 71% respectively, and converted nitrogen contents of 14.8% and 14.9% respectively. Compared with traditional single humus fertilizer, the humus fertilizer produced by this product contains a large amount of N element required for biological growth, achieving the purpose of one fertilizer for multiple uses.

[0061] The utility model discloses a device and a method for preparing humic acid by utilizing ammonium sulfite, which avoids the generation of waste gas, and the prepared active humic acid has multiple fertilizer effects.

[0062] The above description is only a preferred specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any technician familiar with the technical field within the technical scope disclosed in the present utility model, according to the technical scheme and utility model concept or equivalent substitution or change, should be covered within the protection scope of the present utility model.

Claims

1. A device for preparing humic acid using ammonium sulfite, characterized in that: It includes a storage device, a conveying device, a preparation device, an external discharge pump, a finished product tank, a conveying pump, an evaporator, and a filling machine; the lower end of the storage device is connected to the conveying device, the preparation device is located at the lower part of the output end of the conveying device, the preparation device is connected to the finished product tank through the external discharge pump, and the finished product tank is respectively connected to the evaporator and / or the filling machine through the conveying pump.

2. The device for preparing humic acid using ammonium sulfite according to claim 1, characterized in that: The conveying device is a metering conveyor.

3. The device for preparing humic acid using ammonium sulfite according to claim 2, characterized in that: The preparation device is equipped with a stirring device.

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