Method and device for preparing foliar fertilizer by spraying wood volatile gas

Abstract

The present application relates to foliar fertilizer preparation technical field, particularly to a kind of wood volatile gas spray coupling preparation foliar fertilizer method and device;Chelating aqueous solution is atomized and coupled with wood volatile gas condensation by first, second, third spraying device, the foliar fertilizer obtained rich in various mineral elements and effectively coupled wood volatile gas in organic acids, hydrocarbons, phenols and alcohols and other beneficial substances, with the characteristics of stable chemical properties, chemical composition is uniform, the method of spraying shell powder or chelating aqueous solution containing soluble potassium, magnesium, zinc, iron and other mineral element substances in high temperature section of wood volatile gas, and circulating spraying primary mixed solution, realizes the "one-stop" preparation of multi-component foliar fertilizer;Including chelating pumping unit, first spraying device, second spraying device, third spraying device, demisting pipe, vertical tube heat exchanger, circulating cold water unit, negative pressure fan unit, non-condensable gas processing unit, finished product nutrient solution storage tank, circulating pump group and mixed solution storage tank.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of foliar fertilizer preparation, in particular to a method and device for preparing foliar fertilizer by spraying wood volatile gas. BACKGROUND

[0002] It is an inevitable way to realize sustainable development of agriculture to vigorously promote bio-organic fertilizer.

[0003] In the process of wood carbonization, the main economic product is biochar. At present, the condensable components in volatile gas are captured by the method of water aeration, and the products are low-concentration wood vinegar and wood tar. Because the contents of calcium, iron, zinc and magnesium in wood vinegar are low, and the coupling degree of acid, hydrocarbon, alcohol and phenol in volatile gas is poor, the utilization degree is low.

[0004] How to effectively utilize the volatile gas generated in the process of wood carbonization, and resourcefully utilize the beneficial substances such as acid, hydrocarbon, alcohol and phenol, and effectively couple the mineral elements such as calcium, magnesium, zinc and iron required by different plants to prepare bio-organic fertilizer with stable quality and balanced nutrient composition is a problem to be solved in the industry. SUMMARY

[0005] To solve the above technical problems, the present application provides a method and device for preparing foliar fertilizer by spraying wood volatile gas, which effectively couples the beneficial substances such as organic acid, hydrocarbon, phenol and alcohol in wood volatile gas and supplements mineral elements, and realizes the one-stop preparation of multi-component foliar fertilizer.

[0006] This invention discloses a method and apparatus for preparing foliar fertilizer using a spray coupling method for volatile wood fumes. The apparatus includes a chelation pumping unit, a first spraying device, a second spraying device, a third spraying device, a demister, a vertical tube heat exchanger, a circulating cooling water unit, a negative pressure fan unit, a non-condensable gas treatment unit, a finished nutrient solution storage tank, a circulating pump unit, and a mixed solution storage tank. The chelation pumping unit is connected to the first spraying device. The first, second, and third spraying devices are connected via internal piping. All three devices are connected to the mixed solution storage tank. The output end of the third spraying device is connected to the input end of the demister. The vertical tube heat exchanger is connected to the demister via an external pipe. The circulating cooling water unit and the vertical tube heat exchanger form a circulating water circuit via an external pipe. The negative pressure fan unit is connected to the vertical tube heat exchanger. The heat exchanger output is connected, the non-condensable gas treatment unit is connected to the output of the negative pressure fan, the finished product nutrient solution storage tank is connected to the finished product output of the mixed liquid storage tank, and the mixed liquid storage tank, the first spray device, the second spray device and the third spray device are respectively connected to the circulating pump group; the chelated aqueous solution is sprayed and atomized and coupled with the condensation of wood volatile gas through the first, second and third spray devices. It is rich in a variety of mineral elements and effectively couples beneficial substances such as organic acids, hydrocarbons, phenols and alcohols in wood volatile gas. It has the characteristics of stable chemical properties and uniform chemical composition. By spraying shell powder or chelated aqueous solution containing soluble potassium, magnesium, zinc, iron and other mineral elements into the high-temperature section of wood volatile gas and circulating the primary mixed liquid, the "one-stop" preparation of multi-component foliar fertilizer is realized.

[0007] Preferably, the first spraying device includes a first spraying chamber, a first nozzle, a second nozzle, a third nozzle, a chelating liquid supply pipeline, and a first mixed liquid supply pipeline. Both the chelating liquid supply pipeline and the first mixed liquid supply pipeline are fixedly installed on the top of the first spraying chamber. The chelating liquid supply pipeline is connected to a chelation pumping unit, and the first mixed liquid supply pipeline is connected to a circulating pump group. The first nozzle is fixedly installed inside the first spraying chamber and connected to the chelating liquid supply pipeline. The second nozzle and the third nozzle are both fixedly installed inside the first spraying chamber and connected to the first mixed liquid supply pipeline. The chelated aqueous solution is sprayed and atomized by the first nozzle of the first spraying device, and accelerates the condensation and coupling with condensable components such as acids, hydrocarbons, alcohols, and phenols in the volatile gas to form a stable primary mixed liquid in the form of "water-in-oil" or "oil-in-water".

[0008] Preferably, the first spray chamber has a right-angled trapezoidal structure; this design facilitates subsequent cleaning.

[0009] Preferably, the first nozzle, the second nozzle, and the third nozzle are arranged sequentially with their axes parallel to the inclined surface of the trapezoidal body and facing the direction of the second spraying device; the high-speed jet in the inclined nozzle can accelerate the gas flow in the first spraying chamber and clean the impurities accumulated on the pipe wall.

[0010] Preferably, the second spraying device comprises a second spraying chamber, a fourth nozzle and a second mixed liquid supply pipeline, the second spraying chamber is communicated with the first spraying chamber, the second mixed liquid supply pipeline is fixedly arranged at the top of the second spraying chamber, the second mixed liquid supply pipeline is communicated with the circulating pump set, and the fourth nozzle is fixedly arranged in the second spraying chamber and connected with the second mixed liquid supply pipeline; the above arrangement is used for further condensation and coupling of the wood volatile gas which is not completely condensed and coupled.

[0011] Preferably, the third spraying device comprises a third spraying chamber, a fifth nozzle and a third mixed liquid supply pipeline, the third spraying chamber is communicated with the second spraying chamber, the third mixed liquid supply pipeline is fixedly arranged at the top of the third spraying chamber, the third mixed liquid supply pipeline is communicated with the circulating pump set, and the fifth nozzle is fixedly arranged in the third spraying chamber and connected with the third mixed liquid supply pipeline; the above arrangement is used for further condensation and coupling of the wood volatile gas which is not completely condensed and coupled.

[0012] Preferably, the fourth nozzle and the fifth nozzle of the second spraying device and the third spraying device are arranged in parallel with the central axes of the second spraying chamber and the third spraying chamber; the above arrangement is used for uniform spraying.

[0013] Preferably, a method for preparing a foliar fertilizer by spraying and coupling wood volatile gas comprises the following steps:

[0014] First, the mixed liquid storage tank is filled with water to about 2 / 3 of the liquid level, and then the negative pressure fan set, the circulating pump set and the chelation pump unit are started;

[0015] Second, the wood volatile gas enters the first spraying device, the second spraying device and the third spraying device in turn under negative pressure conditions;

[0016] Third, in the high-temperature section (280-350 DEG C) of the volatile gas, the oyster shell powder, the shell powder or the chelated aqueous solution containing soluble mineral elements such as potassium, magnesium, zinc and iron is sprayed and atomized by the first nozzle of the first spraying device, and the acid, hydrocarbon, alcohol, phenol and other condensable components in the volatile gas are accelerated to condense and couple, forming a primary mixed liquid with the properties of "oil-in-water" and "water-in-oil" and flowing to the mixed liquid storage tank;

[0017] Fourth, the wood volatile gas which is not completely condensed and coupled enters the second spraying device and the third spraying device to complete the condensation and coupling;

[0018] Fifth, the remaining gas is demisted and cooled by the demisting pipe and the vertical pipe heat exchanger, and then treated in the non-condensable gas treatment unit to meet the standard;

[0019] Sixth, the obtained primary mixed liquid is sprayed and coupled to the wood volatile gas to realize the enrichment of nutrient elements; the mixed liquid with qualified components is extracted to the foliar fertilizer storage tank for storage.

[0020] Compared with the prior art, the foliar fertilizer obtained by the method and device is rich in various mineral elements and effectively couples beneficial substances such as organic acids, hydrocarbons, phenols and alcohols in the wood volatile gas, has the characteristics of stable chemical properties and uniform chemical composition. The method of spraying shell powder or chelated water solution containing soluble potassium, magnesium, zinc, iron and other mineral elements on the wood volatile gas high-temperature section and circulating spraying the primary mixed solution realizes the "one-stop" preparation of the multi-component foliar fertilizer. BRIEF DESCRIPTION OF DRAWINGS

[0021] Fig. 1 is a structural schematic diagram of the present application;

[0022] Fig. 2 is a first spraying chamber external schematic diagram;

[0023] In the drawings, 1 is a chelation pumping unit; 2 is a first spraying device; 3 is a second spraying device; 4 is a third spraying device; 5 is a demisting pipe; 6 is a vertical pipe heat exchanger; 7 is a circulating cold water unit; 8 is a negative pressure fan unit; 9 is a non-condensable gas treatment unit; 10 is a finished product nutrient solution storage tank; 11 is a circulating pump group; 12 is a mixed solution storage tank; 21 is a first spraying chamber; 22 is a first nozzle; 23 is a second nozzle; 24 is a third nozzle; 25 is a chelating liquid supply pipeline; 26 is a first mixed solution supply pipeline; 31 is a second spraying chamber; 32 is a fourth nozzle; 33 is a second mixed solution supply pipeline; 41 is a third spraying chamber; 42 is a fifth nozzle; 43 is a third mixed solution supply pipeline. DETAILED DESCRIPTION

[0024] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the related drawings. The present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0025] As Figs. 1-2As shown, a device for preparing foliar fertilizer by spraying wood volatile gas, comprising a chelation pumping unit 1, a first spraying device 2, a second spraying device 3, a third spraying device 4, a demisting pipe 5, a vertical pipe heat exchanger 6, a circulating cold water unit 7, a negative pressure fan unit 8, a non-condensable gas treatment unit 9, a finished nutrient liquid storage tank 10, a circulating pump group 11 and a mixed liquid storage tank 12, the chelation pumping unit 1 is connected with the first spraying device 2, the first spraying device 2, the second spraying device 3 and the third spraying device 4 are communicated through internal pipelines, the first spraying device 2, the second spraying device 3 and the third spraying device 4 are communicated with the mixed liquid storage tank 12, the output end of the third spraying device 4 is connected with the input end of the demisting pipe 5, the vertical pipe heat exchanger 6 is connected with the demisting pipe 5 through external pipelines, the circulating cold water unit 7 and the vertical pipe heat exchanger 6 constitute a circulating water circuit through external pipelines, the negative pressure fan unit 8 is connected with the output end of the vertical pipe heat exchanger 6, the non-condensable gas treatment unit 9 is connected with the output end of the negative pressure fan, the finished nutrient liquid storage tank 10 is connected with the finished product output end of the mixed liquid storage tank 12, the mixed liquid storage tank 12, the first spraying device 2, the second spraying device 3 and the third spraying device 4 are connected with the circulating pump group 11 respectively, the first spraying device 2 comprises a first spraying chamber 21, a first nozzle 22, a second nozzle 23, a third nozzle 24, a chelation liquid supply pipeline 25 and a first mixed liquid supply pipeline 26, the chelation liquid supply pipeline 25 and the first mixed liquid supply pipeline 26 are fixedly arranged at the top of the first spraying chamber 21, the chelation liquid supply pipeline 25 is communicated with the chelation pumping unit 1, the first mixed liquid supply pipeline 26 is communicated with the circulating pump group 11, the first nozzle 22 is fixedly arranged in the first spraying chamber 21 and connected with the chelation liquid supply pipeline 25, the second nozzle 23 and the third nozzle 24 are both fixedly arranged in the first spraying chamber 21 and connected with the first mixed liquid supply pipeline 26, the first spraying chamber 21 is in the shape of a right trapezoidal body structure, the first nozzle 22, the second nozzle 23 and the third nozzle 24 are arranged in the order of the axis being parallel to the inclined surface of the trapezoidal body and facing the direction of the second spraying device 3, the second spraying device 3 comprises a second spraying chamber 31, a fourth nozzle 32 and a second mixed liquid supply pipeline 33, the second spraying chamber 31 is communicated with the first spraying chamber 21, the second mixed liquid supply pipeline 33 is fixedly arranged at the top of the second spraying chamber 31, the second mixed liquid supply pipeline 33 is communicated with the circulating pump group 11, the fourth nozzle 32 is fixedly arranged in the second spraying chamber 31 and connected with the second mixed liquid supply pipeline 33, the third spraying device 4 comprises a third spraying chamber 41, a fifth nozzle 42 and a third mixed liquid supply pipeline 43, the third spraying chamber 41 is communicated with the second spraying chamber 31, the third mixed liquid supply pipeline 43 is fixedly arranged at the top of the third spraying chamber 41, the third mixed liquid supply pipeline 43 is communicated with the circulating pump group 11, the fifth nozzle 42 is fixedly arranged in the third spraying chamber 41 and connected with the third mixed liquid supply pipeline 43.The chelating water solution is sprayed and atomized by the first, second and third spraying devices to be coupled with the wood volatile gas condensation, which is rich in various mineral elements and effectively couples the organic acids, hydrocarbons, phenols and alcohols and other beneficial substances in the wood volatile gas, has the characteristics of stable chemical properties and uniform chemical composition, adopts the method of spraying shell powder or chelating water solution containing soluble potassium, magnesium, zinc, iron and other mineral element substances on the high temperature section of the wood volatile gas, and circulating spraying the primary mixed solution, and realizes the "one-stop" preparation of multi-component foliar fertilizer.

[0026] The method for preparing foliar fertilizer by spraying and coupling wood volatile gas of the present application comprises the following steps:

[0027] First, the negative pressure fan unit 8, the circulating pump group 11 and the chelating pump unit 1 are started after the first mixed solution storage tank 12 is filled with water to about 2 / 3 of the liquid level.

[0028] Second, the wood volatile gas enters the first spraying device 2, the second spraying device 3 and the third spraying device 4 in turn under negative pressure conditions.

[0029] Third, in the high temperature section (280-350℃) of the volatile gas, the oyster shell powder, the shell powder or the chelating water solution containing soluble potassium, magnesium, zinc, iron and other mineral element substances is sprayed and atomized by the first nozzle 22 of the first spraying device 2, and is coupled with the condensable components such as acids, hydrocarbons, alcohols and phenols in the volatile gas to accelerate condensation, forming a primary mixed solution with stable "water-in-oil" or "oil-in-water" properties and flowing to the mixed solution storage tank 12.

[0030] Fourth, the wood volatile gas that is not completely coupled and condensed enters the second spraying device 3 and the third spraying device 4 for complete condensation and coupling.

[0031] Fifth, the remaining gas is demisted and cooled by the demisting pipe 5 and the vertical pipe heat exchanger 6, and then is treated by the non-condensable gas treatment unit.

[0032] Sixth, the obtained primary mixed solution is recycled for spraying and coupling with the wood volatile gas to enrich the nutrient elements, and the mixed solution that passes the chemical composition test is extracted to the foliar fertilizer storage tank for storage.

[0033] The method and device for preparing foliar fertilizer by spraying and coupling wood volatile gas of the present application are installed, connected or arranged in a common mechanical manner, and the specific structure, model and coefficient index of all components are self-contained technologies, as long as they can achieve the beneficial effects, and can be implemented. The negative pressure fan unit 8 and the circulating pump group 11 of the method and device for preparing foliar fertilizer by spraying and coupling wood volatile gas of the present application are purchased on the market, and the technical personnel in the industry only need to install and operate according to the attached instruction manual, without the need for technical personnel in the field to make creative efforts.

[0034] All technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs unless clearly indicated otherwise. The terminology used in the description herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0035] The above description is only preferred embodiments of the present application, it should be pointed out that, for those skilled in the art, without departing from the technical principles of the present application, a number of improvements and modifications can also be made, these improvements and modifications should be considered as the protection scope of the present application.

Claims

1. A device for preparing foliar fertilizer by spraying wood volatile gas, characterized in that, The chelating pumping unit (1), the first spraying device (2), the second spraying device (3), the third spraying device (4), the demisting pipe (5), the vertical pipe heat exchanger (6), the circulating cold water unit (7), the negative pressure fan unit (8), the non-condensable gas treatment unit (9), the finished nutrient solution storage tank (10), the circulating pump group (11) and the mixed solution storage tank (12) are connected. The first spraying device (2) comprises a first spraying chamber (21), a first nozzle (22), a second nozzle (23), a third nozzle (24), a chelating liquid supply pipeline (25) and a first mixed solution supply pipeline (26), the chelating liquid supply pipeline (25) and the first mixed solution supply pipeline (26) are fixedly arranged at the top of the first spraying chamber (21), the chelating liquid supply pipeline (25) is communicated with the chelating pumping unit (1), the first mixed solution supply pipeline (26) is communicated with the circulating pump group (11), the first nozzle (22) is fixedly arranged in the first spraying chamber (21) and connected with the chelating liquid supply pipeline (25), and the second nozzle (23) and the third nozzle (24) are both fixedly arranged in the first spraying chamber (21) and connected with the first mixed solution supply pipeline (26). The first spraying chamber (21) is a right trapezoidal body structure, the bottom surface thereof is a slope and inclines downward to the second spraying device (3). The first nozzle (22), the second nozzle (23) and the third nozzle (24) are arranged in parallel with the axis of the trapezoidal body slope and toward the second spraying device (3) in sequence.

2. The device for preparing foliar fertilizer by spraying wood volatile gas coupling according to claim 1, characterized in that, The second spraying device (3) comprises a second spraying chamber (31), a fourth nozzle (32) and a second mixed solution supply pipeline (33), the second spraying chamber (31) is communicated with the first spraying chamber (21), the second mixed solution supply pipeline (33) is fixedly arranged at the top of the second spraying chamber (31), the second mixed solution supply pipeline (33) is communicated with the circulating pump group (11), and the fourth nozzle (32) is fixedly arranged in the second spraying chamber (31) and connected with the second mixed solution supply pipeline (33).

3. The device for preparing foliar fertilizer by spraying wood volatile gas coupling according to claim 1, characterized in that, The third spraying device (4) comprises a third spraying chamber (41), a fifth nozzle (42) and a third mixed liquid supply pipeline (43). The third spraying chamber (41) is communicated with the second spraying chamber (31). The third mixed liquid supply pipeline (43) is fixedly arranged at the top of the third spraying chamber (41) and is communicated with the circulating pump set (11). The fifth nozzle (42) is fixedly arranged in the third spraying chamber (41) and is connected with the third mixed liquid supply pipeline (43).

4. The device for preparing foliar fertilizer by spraying wood volatile gas coupling according to claim 3, characterized in that, The fourth nozzle (32) and the fifth nozzle (42) of the second spraying device (3) and the third spraying device (4) are arranged in parallel with the central axes of the second spraying chamber (31) and the third spraying chamber (41).

5. The device for preparing foliar fertilizer by spraying wood volatile gas coupling according to claim 1, characterized in that, The use method of the device for preparing foliar fertilizer by spraying wood volatile gas coupling comprises the following steps: First, the mixed liquid storage tank (12) is filled with water to 2 / 3 of the liquid level, and then the negative pressure fan unit (8), the circulating pump set (11) and the chelation pumping unit (1) are started; Second, the wood volatile gas enters the first spraying device (2), the second spraying device (3) and the third spraying device (4) in turn under negative pressure conditions; Third, in the high-temperature section of the volatile gas, the chelated aqueous solution containing soluble potassium, magnesium, zinc and iron mineral elements is sprayed and atomized by the first nozzle (22) of the first spraying device (2), and the acid, hydrocarbon, alcohol and phenolic condensable components in the volatile gas are accelerated to condense and couple, forming "water-in-oil" and "oil-in-water" stable primary mixed liquid and flowing to the mixed liquid storage tank (12); Fourth, the wood volatile gas that is not completely condensed and coupled enters the second spraying device (3) and the third spraying device (4) for condensation and coupling; Fifth, the remaining gas is demisted and cooled by the demisting pipe (5) and the vertical pipe heat exchanger (6) and then reaches the non-condensable gas treatment unit for standard treatment; Sixth, the obtained primary mixed liquid is sprayed and coupled to the wood volatile gas for recycling and enrichment of nutrient elements; the mixed liquid with qualified components is extracted to the foliar fertilizer storage tank for storage. Seventh, the obtained primary mixed liquid is sprayed and coupled to the wood volatile gas for recycling and enrichment of nutrient elements; the mixed liquid with qualified components is extracted to the foliar fertilizer storage tank for storage.

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