CN216856672U - Humic acid purification production device capable of improving humic acid purity - Google Patents
Humic acid purification production device capable of improving humic acid purity Download PDFInfo
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- CN216856672U CN216856672U CN202220340461.3U CN202220340461U CN216856672U CN 216856672 U CN216856672 U CN 216856672U CN 202220340461 U CN202220340461 U CN 202220340461U CN 216856672 U CN216856672 U CN 216856672U
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Abstract
The utility model belongs to a humic acid purification production device capable of improving the purity of humic acid; the humic acid-containing raw material coal bunker is connected with a hydrocyclone separator sequentially through a sorting unit, a coal grinding unit, an alkali liquor unit and an acid liquor unit, a precipitation outlet of the hydrocyclone separator is connected with a purified humic acid treatment unit, and a clear liquid outlet of the hydrocyclone separator is connected with a fulvic acid product packaging machine through a first blade dryer; through the mode that physical purification and chemical purification combined together, get rid of the inorganic impurity that is difficult to get rid of in the current production technology, realize that product ash content reduces by a wide margin to promote the purity and the quality of humic acid product, be used for satisfying the characteristics of trades user demand such as fine chemical industry and medicine.
Description
Technical Field
The utility model belongs to the technical field of humic acid purification production, and particularly relates to a humic acid purification production device capable of improving the purity of humic acid.
Background
Humic acid is derived from organic minerals such as weathered coal and lignite, is a high molecular organic substance having various active functional groups such as carboxyl, phenolic hydroxyl, ketocarbonyl, methoxy and the like, and is widely applied to the fields of industry, agriculture, livestock raising, medicine, environmental protection and the like. The weathered coal and the lignite have high humic acid content and are generally used as raw materials for extracting humic acid, and as the coal contains more inorganic mineral substances and the humic acid has stronger complexing and adsorption capacities, the humic acid obtained by the current extraction processes such as an alkali extraction method, an acid extraction method and a microbial dissolution method almost contains more 'ash' (inorganic substances), so that the weathered coal and the lignite have lower purity and low quality, cannot meet the market requirements of fine chemical engineering, medicines, environmental protection and the like, and are not beneficial to improving the value of the humic acid.
SUMMERY OF THE UTILITY MODEL
The utility model overcomes the defects of the prior art, and provides the humic acid purification production device which removes inorganic impurities which are difficult to remove in the prior production process and greatly reduces the ash content of the humic acid product by combining physical purification and chemical purification, so that the purity and the quality of the humic acid product are improved, and the humic acid purification production device is used for meeting the use requirements of industries such as fine chemical engineering, medicine and the like and can improve the humic acid purity.
The purpose of the utility model is realized as follows:
the utility model provides a can improve humic acid purification apparatus for producing of purity, this apparatus for producing includes the raw materials coal bunker, the raw materials coal bunker loops through to select separately unit, coal grinding unit, alkali lye unit and acidizing fluid unit and links to each other with hydrocyclone separator, and hydrocyclone separator's sediment export links to each other with purification humic acid processing unit, and hydrocyclone separator's clear solution export links to each other with fulvic acid product packaging machine through first paddle dryer.
Preferably, the separation unit comprises a jigging separator connected with the raw material coal bunker, and a dry autogenous mill and a floating separator which are sequentially connected with an outlet of the jigging separator.
Preferably, the coal grinding unit comprises a spiral conveyor connected with an outlet of the floating separator, and the spiral conveyor is connected with a coal water slurry storage tank through a coal water slurry ball mill; and a coal water inlet of the coal water slurry ball mill is connected with a ball mill water supply tank.
Preferably, the alkali liquor unit includes the HA reation kettle who links to each other with the export of coal slurry storage tank, and HA reation kettle's alkali liquor import links to each other with the alkali liquor storage tank, and HA reation kettle's export links to each other with the first settling cask that HAs first flocculating agent storage tank, and the export of first settling cask links to each other with sedimentation centrifuge, and sedimentation centrifuge's solution export links to each other with HA salt solution storage tank.
Preferably, the acid solution unit comprises an acidification reaction kettle connected with an outlet of the HA salt solution storage tank, an acid solution inlet of the acidification reaction kettle is connected with the acid solution storage tank, an outlet of the acidification reaction kettle is connected with a second settling tank with a second flocculant storage tank, and an outlet of the second settling tank is connected with an inlet of the hydrocyclone separator.
Preferably, the purified humic acid treatment unit comprises a precipitation neutralization tank, and an outlet of the precipitation neutralization tank is connected with a purified humic acid packaging machine through a second blade dryer; the clear water inlet of the sedimentation neutralization tank is connected with the cleaning water supply tank.
According to the humic acid purification production device capable of improving the humic acid purity, which is prepared according to the scheme, the impurities in lignite or weathered coal and the like can be removed by arranging the sorting unit, so that a foundation is laid for the treatment of a coal grinding unit, an alkali liquor unit and an acid liquor unit at the later stage, and meanwhile, when the humic acid in the coal is extracted by using an alkali solution in the conventional method, the impurities such as silicon oxide, silicate, aluminum oxide and the like cannot be removed, but metal oxide is dissolved by an acid extraction method so as to introduce more inorganic substances, in the utility model, the alkali solution extraction and the acid extraction method are combined, and further, a flocculation process is added in the subsequent steps of the alkali solution extraction and the acid extraction method, so that the conventional inorganic impurities can be removed, and silicon and aluminum-containing impurities can also be effectively removed, so that the purposes of reducing the humic acid product ash content and improving the purity are achieved; the separation unit comprises a jigging separator, a dry autogenous mill and a floating separator, and the jigging separator can remove coal with more mineral substances, high density and poor quality to obtain raw coal with better quality; the dry autogenous mill and the floating separator are matched to separate and remove light impurities and dust, and incompletely crushed stones and clods and the like, so as to obtain clean coal; the method has the characteristics of reasonable flow design, removal of inorganic impurities difficult to remove in the existing production process by means of combination of physical purification and chemical purification, and great reduction of the ash content of the product, so that the purity and quality of the humic acid product are improved, and the method is used for meeting the use requirements of industries such as fine chemical engineering, medicine and the like.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Detailed Description
In order to more clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will now be described with reference to the accompanying drawings, in which like reference numerals refer to like parts in the various figures. For the sake of simplicity, only the parts relevant to the utility model are schematically shown in the drawings, and they do not represent the actual structure as a product.
As shown in fig. 1, the utility model relates to a humic acid purification production device capable of improving the purity of humic acid, which comprises a raw material coal bunker 1, wherein the raw material coal bunker 1 is connected with a hydrocyclone 19 sequentially through a sorting unit, a coal grinding unit, an alkali liquor unit and an acid liquor unit, a precipitation outlet of the hydrocyclone 19 is connected with a purified humic acid treatment unit, and a clear liquid outlet of the hydrocyclone 19 is connected with a fulvic acid product packaging machine 21 through a first blade dryer 20. The separation unit can remove impurities in lignite, weathered coal and the like, and lays a foundation for the treatment of a coal grinding unit, an alkali liquor unit and an acid liquor unit in the later period; furthermore, the coal grinding unit can be used for crushing the raw coal, so that the reaction between the alkali liquor unit and the acid liquor unit in the later period and the raw coal is more sufficient.
The separation unit comprises a jigging separator 2 connected with a raw material coal bunker 1, and a dry type autogenous mill 3 and a floating separator 4 which are sequentially connected with an outlet of the jigging separator 2. According to the utility model, coal with more mineral substances, high density and poor quality can be removed through the jigging separator, so that raw material coal with good quality is obtained; the dry autogenous mill and the floating separator can be matched to separate and remove light impurities, dust, incompletely crushed stones, clods and the like, and the clean coal is obtained.
The coal grinding unit comprises a spiral conveyor 5 connected with an outlet of the floating separator 4, and the spiral conveyor 5 is connected with a coal water slurry storage tank 8 through a coal water slurry ball mill 7; and a coal water inlet of the coal water slurry ball mill 7 is connected with the ball mill water supply tank 6.
The alkali liquor unit comprises an HA reaction kettle 10 connected with an outlet of a water-coal-slurry storage tank 8, an alkali liquor inlet of the HA reaction kettle 10 is connected with an alkali liquor storage tank 9, an outlet of the HA reaction kettle 10 is connected with a first settling tank 12 with a first flocculating agent storage tank 11, an outlet of the first settling tank 12 is connected with a sedimentation centrifuge 13, and a solution outlet of the sedimentation centrifuge 13 is connected with an HA salt solution storage tank 14. Through the arrangement, alkali insoluble substances such as ferric oxide, calcium carbonate and cellulose in the reaction liquid can be effectively separated and removed to obtain the humate solution.
The acid liquor unit comprises an acidification reaction kettle 16 connected with an outlet of the HA salt solution storage tank 14, an acid liquor inlet of the acidification reaction kettle 16 is connected with an acid liquor storage tank 15, an outlet of the acidification reaction kettle 16 is connected with a second settling tank 18 with a second flocculating agent storage tank 17, and an outlet of the second settling tank 18 is connected with an inlet of a hydrocyclone 19. Through the arrangement, the humate can be converted into acid-insoluble humic acid and acid-soluble fulvic acid by acidification, and the alkali-soluble meta-aluminate and silicate are converted into acid-soluble salt, so that the purposes of effectively removing ash and improving the product purity are achieved.
The purified humic acid treatment unit comprises a precipitation neutralization tank 23, and an outlet of the precipitation neutralization tank 23 is connected with a purified humic acid packaging machine 25 through a second blade dryer 24; the clear water inlet of the sedimentation neutralization tank 23 is connected with the cleaning water supply tank 22.
The production method of the humic acid purification production device capable of improving the purity of humic acid comprises the following steps: raw materials such as brown coal or weathered coal and the like are put into a jigging separator 2 through a raw material coal bunker 1 and then subjected to jigging separation, coal with a plurality of mineral substances, high density and poor quality is removed, raw material coal with good quality is obtained, and the raw material coal is conveyed into a dry type autogenous mill 3. The raw coal is pulverized in a dry autogenous mill 3 and then conveyed to a flotation classifier 4 for flotation classification to remove light impurities, dust, and incompletely crushed stones and clods, etc., to obtain clean coal. Conveying the obtained clean coal into a coal water slurry ball mill 7 through a screw conveyor 5, conveying grinding water into the coal water slurry ball mill 7 through a ball mill water supply tank 6, grinding the clean coal to obtain a coal water slurry, conveying the coal water slurry into an HA reaction kettle 10 through a coal water slurry storage tank 8 for reaction, conveying mixed alkali liquor of NaOH and sodium pyrophosphate into the HA reaction kettle 10 from an alkali liquor storage tank 9, mixing the coal water slurry and the alkali liquor according to a certain proportion, and reacting for 1 hour at 80 ℃ in the HA reaction kettle 10. After the reaction is finished, the reaction solution enters a settling tank 12, and Na is added2CO3A flocculating agent is conveyed into the first settling tank 12 through the first flocculating agent storage tank 11, so that the sedimentation speed of reaction liquid in the first settling tank 12 is accelerated, and later-stage centrifugation is facilitated; on the other hand, the flocculant plays a role of reducing metal ions (insoluble substances generated by the reaction of the flocculant and the metal ions in the reaction solution are settled). The reaction liquid after sedimentation enters a sedimentation centrifuge 13 through a pipeline, alkali insoluble substances such as ferric oxide, calcium carbonate, cellulose and the like in the reaction liquid are separated and removed to obtain humate solution, and the humate solution is conveyed toHA salt solution reservoir 14. Conveying the humate solution from the HA salt solution storage tank 14 to the acidification reaction kettle 16; the mixed acid solution of hydrochloric acid and hydrofluoric acid is conveyed from an acid solution storage tank 15 to an acidification reaction kettle 16, humate is converted into acid-insoluble humic acid and acid-soluble fulvic acid through acidification reaction, meanwhile, alkali-soluble meta-aluminate and silicate are converted into acid-soluble salt, then the reaction liquid is conveyed to an acid solution settling tank 18 through a pipeline, a NaCl flocculating agent is conveyed to a second settling tank 18 through a second flocculating agent storage tank 17, and the gathering and settling speed of humic acid in the solution is accelerated. After a period of time, the reaction liquid is separated by a hydrocyclone 19 to obtain a fulvic acid solution and a humic acid precipitate with higher purity, the humic acid precipitate is conveyed into a precipitation neutralization tank 23 through a pipeline, humic acid in the precipitation neutralization tank 23 is neutralized and washed by pure water in a washing water supply tank 22, after residual inorganic salt is washed away, the humic acid is conveyed into a paddle dryer 24 for drying and dehydration to obtain high-purity humic acid, and the humic acid is conveyed into a purified humic acid packaging machine 25 for packaging to obtain a purified humic acid product. And the clear liquid obtained after the treatment of the hydrocyclone separation device is conveyed to a paddle dryer 20 through a pipeline, the clear liquid is dried by the paddle dryer 20 to obtain a fulvic acid product, and the dried fulvic acid product is conveyed to a fulvic acid product packaging machine 21 for packaging. The utility model can remove a large amount of impurities through physical separation in the early stage, lays a foundation for chemical purification in the later stage, and further can effectively remove ash through the alkali liquor unit, the acid liquor unit and the corresponding flocculation process, so that the ash content of the traditional product is reduced to 1-5% from the original 20-50%, the purity and the quality of the humic acid product are greatly improved, and the use requirements of the industries of high-speed development, such as fine chemical industry, medicine and the like at present are met.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected," "connecting," and the like are to be construed broadly, and may, for example, be fixedly connected, integrally connected, or detachably connected; or communication between the interior of the two elements; they may be directly connected or indirectly connected through an intermediate, and those skilled in the art can understand the specific meaning of the above terms in the present invention according to specific situations. The above examples are merely illustrative of the feasible embodiments of the present invention and they are not intended to limit the scope of the present invention, and equivalent embodiments, modifications and alterations without departing from the technical spirit of the present invention are included in the scope of the present invention.
Claims (6)
1. The utility model provides a can improve rotten phytic acid purification apparatus for producing of humic acid purity, this apparatus for producing includes raw materials coal bunker (1), its characterized in that: the raw material coal bunker (1) is connected with a hydrocyclone (19) sequentially through a sorting unit, a coal grinding unit, an alkali liquor unit and an acid liquor unit, a precipitation outlet of the hydrocyclone (19) is connected with a purified humic acid treatment unit, and a clear liquid outlet of the hydrocyclone (19) is connected with a fulvic acid product packaging machine (21) through a first blade dryer (20).
2. The humic acid purification production device capable of improving the purity of humic acid according to claim 1, which is characterized in that: the separation unit comprises a jigging separator (2) connected with the raw material coal bunker (1), and a dry autogenous mill (3) and a floating separator (4) which are sequentially connected with the outlet of the jigging separator (2).
3. The humic acid purification production device capable of improving the purity of humic acid according to claim 2, which is characterized in that: the coal grinding unit comprises a spiral conveyor (5) connected with an outlet of the floating separator (4), and the spiral conveyor (5) is connected with a coal water slurry storage tank (8) through a coal water slurry ball mill (7); and a coal water inlet of the coal water slurry ball mill (7) is connected with the ball mill water supply tank (6).
4. The humic acid purification production device capable of improving the purity of humic acid according to claim 3, which is characterized in that: the alkali liquor unit comprises an HA reaction kettle (10) connected with an outlet of a water coal slurry storage tank (8), an alkali liquor inlet of the HA reaction kettle (10) is connected with an alkali liquor storage tank (9), an outlet of the HA reaction kettle (10) is connected with a first settling tank (12) with a first flocculating agent storage tank (11), an outlet of the first settling tank (12) is connected with a sedimentation centrifuge (13), and a solution outlet of the sedimentation centrifuge (13) is connected with an HA salt solution storage tank (14).
5. The humic acid purification production device capable of improving the purity of humic acid according to claim 4, which is characterized in that: the acid liquor unit comprises an acidification reaction kettle (16) connected with an outlet of the HA salt solution storage tank (14), an acid liquor inlet of the acidification reaction kettle (16) is connected with the acid liquor storage tank (15), an outlet of the acidification reaction kettle (16) is connected with a second settling tank (18) with a second flocculant storage tank (17), and an outlet of the second settling tank (18) is connected with an inlet of a hydrocyclone (19).
6. The humic acid purification production device capable of improving the purity of humic acid according to any one of claims 1 to 5, which is characterized in that: the purified humic acid treatment unit comprises a precipitation neutralization tank (23), and an outlet of the precipitation neutralization tank (23) is connected with a purified humic acid packaging machine (25) through a second blade dryer (24); the clear water inlet of the sedimentation neutralization tank (23) is connected with the cleaning water supply tank (22).
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| CN202220340461.3U CN216856672U (en) | 2022-02-18 | 2022-02-18 | Humic acid purification production device capable of improving humic acid purity |
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| CN202220340461.3U CN216856672U (en) | 2022-02-18 | 2022-02-18 | Humic acid purification production device capable of improving humic acid purity |
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