Daily-use chemical-grade humic acid product production device

Abstract

The utility model belongs to a daily chemical grade humic acid product production device. Comprising a raw material pretreatment tank which is connected with a low-speed centrifugal machine through an alkali extraction reaction kettle, a centrifugate outlet of the low-speed centrifugal machine is connected with a high-speed centrifugal machine, a centrifugate outlet of the high-speed centrifugal machine is connected with an acid precipitation tank, and a precipitate material outlet of the acid precipitation tank is connected with a precipitate washing tank. A precipitate outlet in the precipitate washing tank is connected with an ultrafiltration device through a PH adjusting tank, and an outlet of the ultrafiltration device is connected with a daily chemical grade sodium humate production unit and / or a daily chemical grade humic acid production unit; a centrifugal residue outlet of the low-speed centrifugal machine and a centrifugal residue outlet of the high-speed centrifugal machine are respectively connected with an inlet of a waste residue collecting tank; an outlet of the waste residue collecting tank is connected with an agricultural fertilizer raw material storage tank; the method has the characteristics of avoiding the waste of humic acid and improving the profitability of enterprises.

Description

Technical Field

[0001] The utility model belongs to the technical field of daily chemical production, in particular to a production device for daily chemical-grade humic acid products. Background Art

[0002] As a natural high molecular organic matter, humic acid is widely used in industry, agriculture, animal husbandry, environmental protection and medicine. Its application in medicine has a long history. As early as the ancient Babylonian period, there were records of using humic mud to treat skin diseases abroad. As early as the Tang Dynasty, there were records of using earth charcoal to treat diseases in my country. In fact, the key pharmacologically active components of natural substances such as humic mud and earth charcoal are humic acid substances. In modern times, hospitals, schools and scientific research institutes have conducted a lot of research on the physiological, pharmacological activity and toxicity of humic acid substances. At the same time, a large number of clinical trials have been conducted, which have confirmed the pharmacological effects of humic acid substances in antibacterial and anti-inflammatory, improving immunity, promoting microcirculation, coagulation and hemostasis. Therefore, there is a large market space for compounding humic acid substances with daily chemical matrix and applying their pharmacological activity to the field of daily chemical products. In fact, humic acid substances and humus extracts have also been included in the catalog of used cosmetic raw materials. However, if humic acid substances are to be used in the daily chemical field, they must comply with relevant technical specifications, which requires that both the purity and heavy metal content are much stricter than other fields.

[0003] Based on this, the existing process for purifying daily chemical-grade humic acid products produces relatively simple products, and the purification process causes a large amount of humic acid resources to be wasted. Utility Model Content

[0004] The purpose of the utility model is to provide a production device for daily chemical grade humic acid products to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A production device for daily chemical grade humic acid products comprises a raw material pretreatment tank, wherein the raw material pretreatment tank is connected to a low-speed centrifuge through an alkali extraction reactor, the centrifuge outlet of the low-speed centrifuge is connected to a high-speed centrifuge, the centrifuge outlet of the high-speed centrifuge is connected to an acid precipitation tank, the precipitated material outlet of the acid precipitation tank is connected to a precipitate washing tank, the precipitate outlet in the precipitate washing tank is connected to an ultrafiltration device through a pH regulating tank, the outlet of the ultrafiltration device is connected to a daily chemical grade sodium humate production unit and / or a daily chemical grade humic acid production unit; the centrifuge slag outlet of the low-speed centrifuge and the centrifuge slag outlet of the high-speed centrifuge are respectively connected to the inlet of a waste slag collection tank, and the outlet of the waste slag collection tank is connected to an agricultural fertilizer raw material storage tank.

[0007] The beneficial effects of the utility model are as follows: through the above-mentioned arrangement, the production of daily chemical grade sodium humate and / or daily chemical grade humic acid can be realized, so as to achieve the ability to flexibly adjust daily chemical grade humic acid products, that is, the production of daily chemical grade humic acid products can be adjusted according to market demand. The output of specific daily chemical grade humic acid products can be adjusted, and the centrifugal residues from the low-speed centrifuge and the high-speed centrifuge can be transported to the agricultural fertilizer raw material storage tank to be used as the raw material of agricultural humic acid fertilizer; it has the characteristics of avoiding humic acid waste and improving the profitability of the enterprise.

[0008] As a further technical solution of the utility model, the filter residue outlet of the ultrafiltration device is connected to the inlet of the waste residue collection tank.

[0009] As a further technical solution of the utility model, the daily chemical grade sodium humate production unit comprises a chelate resin tank connected to the outlet of the ultrafiltration device, and a daily chemical grade sodium humate liquid storage tank connected to the outlet of the chelate resin tank.

[0010] As a further technical solution of the utility model, the daily chemical grade humic acid production unit includes an ion exchange resin tank connected to the outlet of the ultrafiltration device, the ion exchange resin tank is connected to the flotation tank, and the solid outlet at the bottom of the flotation tank is connected to the daily chemical grade humic acid solid storage tank.

[0011] As a further technical solution of the utility model, the supernatant outlet of the raw material pretreatment tank and the supernatant outlet of the acid precipitation tank are respectively connected to the supernatant storage tank, the outlet of the supernatant storage tank is connected to the acid recovery diffusion dialysis device, the material outlet of the acid recovery diffusion dialysis device is connected to the deacidification liquid collecting tank, the outlet of the deacidification liquid collecting tank is connected to the nanofiltration device through the electrodialysis water treatment device, and the product outlet of the nanofiltration device is connected to the daily chemical grade fulvic acid storage tank.

[0012] The utility model also includes a water recycling unit, which includes a supernatant outlet of a flotation tank, the supernatant outlet of the flotation tank is connected to the inlet of an electrodialysis water processor, the deionized water outlet of a nanofiltration device is connected to a deionized water storage tank, and the outlet of the deionized water storage tank is respectively connected to the inlet of a raw material pretreatment tank and the inlet of a sediment washing tank.

[0013] The utility model also includes an acid recovery unit, which includes an acid liquid outlet of a precipitate washing tank, the acid liquid outlet of the precipitate washing tank is connected to an acid recovery diffusion dialysis device, the concentrated acid outlet of the acid recovery diffusion dialysis device is connected to an acid supplementation tank, and the outlet of the acid supplementation tank is respectively connected to the acid inlet of a raw material pretreatment tank and an acid precipitation tank.

[0014] According to the above scheme, a production device for daily chemical grade humic acid products is made. By setting a raw material pretreatment tank, the mineral source humic acid is subjected to preliminary impurity removal pretreatment such as acid washing and water washing. Then, after centrifugation and acid sedimentation treatment, the precipitate is washed with water, the pH value is adjusted, and the precipitate can be selected to enter the daily chemical grade sodium humate production unit and / or the daily chemical grade humic acid production unit. The corresponding products are produced according to market supply and demand and price conditions. At the same time, the centrifugal residue from the low-speed centrifuge and the high-speed centrifuge can be transported to the agricultural fertilizer raw material storage tank to be used as the raw material of agricultural humic acid fertilizer; so as to avoid the waste of humic acid; further, on the basis of the above, the utility model processes the supernatant after the pretreatment and acid sedimentation treatment for the production of daily chemical grade fulvic acid, so as to further improve the flexible adjustment ability of the production system to meet the market demand; at the same time, the utility model is also provided with a water recycling unit and an acid recovery unit, so as to avoid the discharge of wastewater and waste acid and the problem of environmental pollution under the premise of saving resources and reducing operating costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0016] In the figure: 1. Raw material pretreatment tank; 2. Alkali extraction reactor; 3. Low-speed centrifuge; 4. High-speed centrifuge; 5. Waste residue collection tank; 6. Agricultural fertilizer raw material storage tank; 7. Acid precipitation tank; 8. Sediment washing tank; 9. PH adjustment tank; 10. Ultrafiltration device; 11. Chelating resin tank; 12. Daily chemical grade sodium humate liquid storage tank; 13. Ion exchange resin tank; 14. Flotation tank; 15. Daily chemical grade humic acid solid storage tank; 16. Supernatant storage tank; 17. Acid recovery diffusion dialysis device; 18. Deacidification liquid collection tank; 19. Electrodialysis water treatment device; 20. Nanofiltration device; 21. Daily chemical grade fulvic acid storage tank; 22. Acid enrichment tank; 23. Deionized water storage tank. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] like Figure 1As shown, the utility model is a production device for daily chemical grade humic acid products, which includes a raw material pretreatment tank 1, which is connected to a low-speed centrifuge 3 through an alkali extraction reactor 2, the centrifuge outlet of the low-speed centrifuge 3 is connected to a high-speed centrifuge 4, the centrifuge outlet of the high-speed centrifuge 4 is connected to an acid precipitation tank 7, the precipitate outlet of the acid precipitation tank 7 is connected to a precipitate washing tank 8, the precipitate outlet in the precipitate washing tank 8 is connected to an ultrafiltration device 10 through a pH adjustment tank 9, and the outlet of the ultrafiltration device 10 is connected to a daily chemical grade sodium humate production unit and / or a daily chemical grade humic acid production unit; the centrifuge slag outlet of the low-speed centrifuge 3 and the centrifuge slag outlet of the high-speed centrifuge 4 are respectively connected to the inlet of a waste slag collection tank 5, and the outlet of the waste slag collection tank 5 is connected to an agricultural fertilizer raw material storage tank 6. The utility model can realize the production of daily chemical grade sodium humate and daily chemical grade humic acid through the above-mentioned arrangement, so as to achieve the purpose of adjusting the production capacity according to the actual situation, and at the same time, the centrifugal residues of the low-speed centrifuge 3 and the high-speed centrifuge 4 enter the agricultural fertilizer raw material storage tank 6 for use as humic acid fertilizer, so as to achieve the problem of humic acid waste caused by the need for purification while improving the flexible production capacity of daily chemical grade humic acid products.

[0019] Preferably, the filter residue outlet of the ultrafiltration device 10 is connected to the inlet of the waste residue collection tank 5. While adjusting the production of daily chemical grade sodium humate and daily chemical grade humic acid, the utility model can send the filter residue from the ultrafiltration device 10 into the agricultural fertilizer raw material storage tank 6 for use as humic acid fertilizer, so as to fully utilize the mineral source humic acid.

[0020] Preferably, the daily chemical grade sodium humate production unit comprises a chelate resin tank 11 connected to the outlet of the ultrafiltration device 10 , and a daily chemical grade sodium humate liquid storage tank 12 connected to the outlet of the chelate resin tank 11 .

[0021] Preferably, the daily chemical grade humic acid production unit comprises an ion exchange resin tank 13 connected to the outlet of the ultrafiltration device 10, the ion exchange resin tank 13 is connected to the flotation tank 14, and the solid outlet at the bottom of the flotation tank 14 is connected to the daily chemical grade humic acid solid storage tank 15. The ultrafiltration device 10 is a pressurized membrane separation device, which can be directly purchased on the market, so it is not described in detail.

[0022] Preferably, the supernatant outlet of the raw material pretreatment tank 1 and the supernatant outlet of the acid precipitation tank 7 are respectively connected to the supernatant storage tank 16, the outlet of the supernatant storage tank 16 is connected to the acid recovery diffusion dialysis device 17, the material outlet of the acid recovery diffusion dialysis device 17 is connected to the deacidification liquid collection tank 18, the outlet of the deacidification liquid collection tank 18 is connected to the nanofiltration device 20 through the electrodialysis water treatment device 19, and the product outlet of the nanofiltration device 20 is connected to the daily chemical grade fulvic acid storage tank 21. The utility model can effectively utilize the supernatant of the raw material pretreatment tank 1 and the acid precipitation tank 7 while utilizing the precipitated material of the acid precipitation tank 7. Specifically, the acid is removed by the acid recovery diffusion dialysis device 17, and then the soluble ions (acid, salt, etc.) are further removed by the electrodialysis water treatment device 19 to obtain an aqueous solution containing purified fulvic acid, and finally the fulvic acid is enriched by the nanofiltration device 20 to obtain the daily chemical grade fulvic acid. The acid recovery diffusion dialysis device 17 described in the utility model is mainly an ion membrane device. The acid recovery diffusion dialysis process uses concentration difference as the driving force, and utilizes the selective permeability of anion exchange membrane to acid and the high retention of salt to achieve the separation of acid and salt in the solution. It can be purchased directly on the market, so it will not be described in detail; the nanofiltration device 20 is a pressurized membrane separation device, which can be purchased directly on the market, so it will not be described in detail. The electrodialysis water treatment device 19 is a membrane device that uses the selective permeability of ion exchange membrane to remove salt under the action of an electric field. It can be purchased directly on the market, so it will not be described in detail.

[0023] The utility model also includes a water recycling unit, which includes a supernatant outlet of a flotation tank 14, the supernatant outlet of the flotation tank 14 is connected to the inlet of an electrodialysis water processor 19, the deionized water outlet of a nanofiltration device 20 is connected to a deionized water storage tank 23, and the outlet of the deionized water storage tank 23 is respectively connected to the inlet of a raw material pretreatment tank 1 and the inlet of a sediment washing tank 8. The utility model can realize the recycling of water resources through the above-mentioned arrangement, which can not only reduce the operating cost, but also avoid the problem of environmental pollution caused by the discharge of wastewater.

[0024] The utility model further includes an acid recovery unit, which includes an acid liquid outlet of a sediment washing tank 8, the acid liquid outlet of the sediment washing tank 8 is connected to an acid recovery diffusion dialysis device 17, the concentrated acid outlet of the acid recovery diffusion dialysis device 17 is connected to an acid replenishment tank 22, and the outlet of the acid replenishment tank 22 is respectively connected to the acid inlet of the raw material pretreatment tank 1 and the acid precipitation tank 7. The utility model can realize the reuse of acid through the above-mentioned arrangement, which can not only reduce the operating cost, but also avoid the problem of environmental pollution caused by the discharge of waste acid.

[0025] The working principle of the utility model is as follows: the raw coal is passed through an 80-mesh sieve, and an acid solution with a pH of 1 is added to the raw coal pretreatment tank 1 (with stirring and a movable filter screen at the lower end) for stirring (the raw coal pretreatment tank 1 can be provided with an acid solution pipeline and an auxiliary equipment such as a deionized water pipeline), and the raw coal with an 80-mesh sieve is initially freed of acid-soluble ash impurities; the filtrate after the above filtration enters the supernatant storage tank 16, and then the acid-washed coal is washed in the raw coal pretreatment tank 1 until the pH of the washing liquid is ≥5, and the washing liquid is also filtered into the supernatant storage tank 16. The raw coal is prepared into a coal slurry of a certain concentration and enters through the inlet of the alkali extraction reactor 2, and fully reacts with the extracting liquid in the alkali extraction reactor 2 to extract humic acid. The reaction mixture is separated by a low-speed centrifuge 3, and the centrifugal residue enters the waste residue collection tank 5. The centrifugal residue in the waste residue collection tank 5 is transported to the agricultural fertilizer production unit 6 to prepare agricultural fertilizer, and the residue is recycled. The centrifuge outlet of the low-speed centrifuge 3 is connected to the inlet of the high-speed centrifuge 4, and the centrifuge enters the high-speed centrifuge 4 for high-speed centrifugation to further remove unstable components such as macromolecular substances, suspended particles, and insoluble substances mixed in the centrifuge. The centrifuge slag of the high-speed centrifuge 4 is also collected in the slag collection tank 5, and the centrifuge enters the acid precipitation tank 7 through the outlet of the high-speed centrifuge 4. Acid solution with a pH of 1 is added to the acid precipitation tank 7 to fully react with the centrifuge (the acid precipitation tank 7 can be provided with ancillary equipment such as an acid pipeline), and the obtained humic acid is precipitated to form a humic acid precipitate and layered with the supernatant. The humic acid precipitate enters the precipitate washing tank 8 to further wash away the soluble ions remaining therein, and wash to a conductivity of ≤500μs / cm. After washing, the humic acid is diluted to a certain concentration and then enters the pH adjustment tank 9 (a stirring device may be provided inside the pH adjustment tank 9), and the pH is adjusted according to demand. After the pH is stable, it is filtered through the ultrafiltration device 10, and the macromolecular insoluble humic acid that has not passed through the ultrafiltration device 10 enters the waste residue collection tank 5, and the filtrate can enter the chelating resin tank 11 or the ion exchange resin tank 13 according to actual conditions; when it is necessary to produce daily chemical grade sodium humate, the above-mentioned filtrate is reacted with the specific chelating resin in the chelating resin tank 11 on the sodium humate, and the impurity ions such as heavy metals in the sodium humate are further removed, and the purified sodium humate enters the daily chemical grade sodium humate liquid storage tank 12, and the purified sodium humate is fully water-soluble, and the heavy metal content is far lower than the limit of the cosmetic safety technical specification. When it is necessary to produce daily chemical grade humic acid, the filtrate is passed through the acidic ion exchange resin in the ion exchange resin tank 13 to further remove the impurity ions such as heavy metals in the sodium humate. After sufficient ion exchange between the sodium humate and the acidic resin, the humic acid, the resin and the water are separated by flotation separation and filtration in the flotation tank 14, and the purified humic acid solid enters the daily chemical grade humic acid solid tank 15. The purity of the obtained purified humic acid solid is above 98%, and the heavy metal content is far lower than the limit of the cosmetic safety technical specification.The water after flotation enters the electrodialysis water treatment device 19 for recycling; the supernatant in the acid precipitation tank 7 enters the supernatant storage tank 16, and the acid in the supernatant storage tank 16 is recovered by the acid recovery diffusion dialysis device 17 (the inlet of the acid recovery diffusion dialysis device is provided with a filter screen), and the recovered acid enters the acid concentration tank 22, and is replenished to the use concentration in the acid concentration tank 22 for recycling. The deacidified water from the acid recovery diffusion dialysis device 17 enters the deacidified liquid collection tank 18. The deacidified water in the deacidified liquid collection tank 18 contains more soluble ions and fulvic acid. After passing through the electrodialysis water treatment device 19, the soluble ions (acid, salt, etc.) are removed to obtain an aqueous solution containing purified fulvic acid. The aqueous solution is enriched with fulvic acid by the sodium filter device 20. The fulvic acid is collected in the daily chemical grade fulvic acid tank 21. The purity of the purified fulvic acid is above 95%. The water filtered by the sodium filter device 20 enters the deionized water tank 23; the deionized water in the deionized water tank 23 is used for the raw coal pretreatment tank 1 and the precipitation water washing tank 8. The raw coal described in the utility model is subjected to the pretreatment of the raw material and the reasonable connection of different separation and purification devices, and four products of different states and types are produced at the same time. The daily chemical grade humic acid products have high purity and low heavy metal content, which can meet different market demands. The whole process makes full use of the raw materials without wasting resources. By adding an acid recovery diffusion dialysis device and an electrodialysis water treatment device to the production system, the waste acid and wastewater generated in the production process can be fully recycled and utilized, which has the characteristics of saving resources and being environmentally friendly. Furthermore, the above four products can simultaneously produce three cosmetic-grade humic acid substances and one agricultural-grade product to meet different market demands, fully utilize raw materials, increase the added value of humic acid products and improve the profitability of the enterprise.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A production device for daily chemical grade humic acid products, characterized by: The production device comprises a raw material pretreatment tank (1), the raw material pretreatment tank (1) is connected to a low-speed centrifuge (3) via an alkali extraction reactor (2), the centrifuge outlet of the low-speed centrifuge (3) is connected to a high-speed centrifuge (4), the centrifuge outlet of the high-speed centrifuge (4) is connected to an acid precipitation tank (7), the precipitated material outlet of the acid precipitation tank (7) is connected to a precipitate washing tank (8), the precipitate outlet in the precipitate washing tank (8) is connected to an ultrafiltration device (10) via a pH adjustment tank (9), and the outlet of the ultrafiltration device (10) is connected to a daily chemical grade sodium humate production unit and / or a daily chemical grade humic acid production unit; The centrifugal residue outlet of the low-speed centrifuge (3) and the centrifugal residue outlet of the high-speed centrifuge (4) are respectively connected to the inlet of the waste residue collection tank (5), and the outlet of the waste residue collection tank (5) is connected to the agricultural fertilizer raw material storage tank (6).

2. The device for producing daily chemical grade humic acid products according to claim 1, characterized in that: The filter residue outlet of the ultrafiltration device (10) is connected to the inlet of the waste residue collection tank (5).

3. The device for producing daily chemical grade humic acid products according to claim 1, characterized in that: The daily chemical grade sodium humate production unit comprises a chelate resin tank (11) connected to the outlet of an ultrafiltration device (10), and a daily chemical grade sodium humate liquid storage tank (12) connected to the outlet of the chelate resin tank (11).

4. The device for producing daily chemical grade humic acid products according to claim 1, characterized in that: The daily chemical grade humic acid production unit comprises an ion exchange resin tank (13) connected to the outlet of the ultrafiltration device (10), the ion exchange resin tank (13) is connected to the flotation tank (14), and the solid outlet at the bottom of the flotation tank (14) is connected to the daily chemical grade humic acid solid storage tank (15).

5. The device for producing daily chemical grade humic acid products according to claim 4, characterized in that: The supernatant outlet of the raw material pretreatment tank (1) and the supernatant outlet of the acid precipitation tank (7) are respectively connected to a supernatant storage tank (16); the outlet of the supernatant storage tank (16) is connected to an acid recovery diffusion dialysis device (17); the material outlet of the acid recovery diffusion dialysis device (17) is connected to a deacidification liquid collection tank (18); the outlet of the deacidification liquid collection tank (18) is connected to a nanofiltration device (20) via an electrodialysis water treatment device (19); and the product outlet of the nanofiltration device (20) is connected to a daily chemical grade fulvic acid storage tank (21).

6. The device for producing daily chemical grade humic acid products according to claim 5, characterized in that: The invention also comprises a water recycling unit, which comprises a supernatant outlet of a flotation tank (14), the supernatant outlet of the flotation tank (14) is connected to an inlet of an electrodialysis water treatment device (19), a deionized water outlet of a nanofiltration device (20) is connected to a deionized water storage tank (23), and an outlet of the deionized water storage tank (23) is respectively connected to an inlet of a raw material pretreatment tank (1) and an inlet of a sediment washing tank (8).

7. The device for producing daily chemical grade humic acid products according to claim 4, characterized in that: The invention also comprises an acid recovery unit, which comprises an acid liquid outlet of a precipitate washing tank (8), wherein the acid liquid outlet of the precipitate washing tank (8) is connected to an acid recovery diffusion dialysis device (17), and the concentrated acid outlet of the acid recovery diffusion dialysis device (17) is connected to an acid replenishing concentration tank (22), and the outlet of the acid replenishing concentration tank (22) is respectively connected to the acid inlet of the raw material pretreatment tank (1) and the acid precipitation tank (7).

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