CN117138721B - A process for producing mineral-derived nitrohumic acid - Google Patents
A process for producing mineral-derived nitrohumic acidInfo
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- CN117138721B CN117138721B CN202311135301.0A CN202311135301A CN117138721B CN 117138721 B CN117138721 B CN 117138721B CN 202311135301 A CN202311135301 A CN 202311135301A CN 117138721 B CN117138721 B CN 117138721B
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08H—DERIVATIVES OF NATURAL MACROMOLECULAR COMPOUNDS
- C08H6/00—Macromolecular compounds derived from lignin, e.g. tannins, humic acids
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/80—After-treatment of the mixture
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/80—After-treatment of the mixture
- B01F23/81—Grinding the mixture
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/80—Mixing plants; Combinations of mixers
- B01F33/83—Mixing plants specially adapted for mixing in combination with disintegrating operations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/80—Mixing plants; Combinations of mixers
- B01F33/836—Mixing plants; Combinations of mixers combining mixing with other treatments
- B01F33/8361—Mixing plants; Combinations of mixers combining mixing with other treatments with disintegrating
- B01F33/83613—Mixing plants; Combinations of mixers combining mixing with other treatments with disintegrating by grinding or milling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/10—Maintenance of mixers
- B01F35/12—Maintenance of mixers using mechanical means
- B01F35/123—Maintenance of mixers using mechanical means using scrapers for cleaning mixers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/71—Feed mechanisms
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/71—Feed mechanisms
- B01F35/712—Feed mechanisms for feeding fluids
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/75—Discharge mechanisms
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0053—Details of the reactor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0053—Details of the reactor
- B01J19/0066—Stirrers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/18—Stationary reactors having moving elements inside
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/18—Stationary reactors having moving elements inside
- B01J19/20—Stationary reactors having moving elements inside in the form of helices, e.g. screw reactors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J4/00—Feed or outlet devices; Feed or outlet control devices
- B01J4/001—Feed or outlet devices as such, e.g. feeding tubes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J4/00—Feed or outlet devices; Feed or outlet control devices
- B01J4/008—Feed or outlet control devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J4/00—Feed or outlet devices; Feed or outlet control devices
- B01J4/02—Feed or outlet devices; Feed or outlet control devices for feeding measured, i.e. prescribed quantities of reagents
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- Chemical & Material Sciences (AREA)
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- Materials Engineering (AREA)
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- Medicinal Chemistry (AREA)
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Abstract
本发明提供一种用于矿源硝基腐植酸生产工艺，属于腐植酸生产技术领域；包括原料仓、配酸罐、定量输送机、立式反应釜、振动筛分机、暂存仓雷蒙磨机、集料器，所述生产工艺包括以下步骤；定量输送机将原料仓中的原煤输送至立式反应釜中，同时通过配酸泵将配酸罐中配置好的硝酸喷洒于立式反应釜中的原料上与之反应，让物料在立式反应釜内上下翻滚搅拌，确保短时间内将大量原料混合均匀并活化反应。本发明设置公转加自转的刮料组件刮除沾附于搅拌桶内壁的混合物，提高工作效率，即使物料的比重和粒径不同，在搅拌叶片的交错抛洒下也能达到良好的混合效果，不存在死角，原料进料采用定量输送机，确保反应过程中煤酸比恒定，产品质量稳定。
This invention provides a process for producing mineral-derived nitrohumic acid, belonging to the field of humic acid production technology. It includes a raw material silo, an acid mixing tank, a quantitative conveyor, a vertical reactor, a vibrating screen, a temporary storage bin, a Raymond mill, and a collector. The production process includes the following steps: The quantitative conveyor transports raw coal from the raw material silo to the vertical reactor. Simultaneously, a pump sprays prepared nitric acid from the acid mixing tank onto the raw material in the vertical reactor to react with it. This allows the material to tumble and stir within the vertical reactor, ensuring that a large amount of raw material is uniformly mixed and activated in a short time. This invention incorporates a rotating scraper assembly that scrapes away the mixture adhering to the inner wall of the mixing tank, improving work efficiency. Even with different specific gravities and particle sizes, good mixing is achieved through the staggered spraying of the stirring blades, eliminating dead zones. The quantitative conveyor ensures a constant coal-to-acid ratio and stable product quality during the reaction process.
Description
Technical Field
The invention relates to the technical field of humic acid production, in particular to a production process for mineral source nitro humic acid.
Background
The mineral source nitro humic acid is formed by oxidizing and nitrifying lignite and nitric acid, introducing nitro, and simultaneously increasing active functional groups, especially tautomerism of p-nitrophenol structure, so as to form a quinone structure, thereby greatly improving the chemical activity and biological activity of the humic acid. The activity of the nitro humic acid is far higher than that of the common humic acid.
The humic acid production equipment with the bulletin number of CN113145055A provides equipment for producing humic acid, and further comprises a flue gas treatment system, a hot water circulation system, a cold water circulation system and a dust removal system which are respectively connected with a nitric acid configuration system, wherein the nitric acid configuration system comprises a pusher, an acid storage tank, a blending tank and an activation reactor, the blending tank is also connected with a waste acid tank, and the pusher, the acid storage tank, the blending tank and the activation reactor are respectively two. The equipment for producing humic acid can not only meet the basic function of producing humic acid, but also increase the stirring range and the mixing quantity, ensure constant reaction conditions, improve the recovery rate of nitric acid, and solve the problems of insufficient humic acid activity or decomposed effective components, high acid content of products, fluctuation of water content and low overall quality.
However, the above scheme has the following drawbacks:
1. The raw materials entering the reaction kettle cannot be accurately measured, and the ratio of the raw materials to nitric acid is not fixed, so that the quality of the product is unstable;
2. the reaction process is one-time reaction, all raw materials cannot be determined to react with nitric acid, and the product quality is uncontrollable;
3. the reaction kettle is horizontal, and corners are easy to have dead angles in the stirring process, so that the reaction of products is insufficient.
Disclosure of Invention
The invention aims to solve the technical problems that the reaction kettle is horizontal in the existing production process of the mining source nitro humic acid, dead angles are easy to exist in corners in the stirring process, so that the reaction of products is insufficient, the raw materials entering the reaction kettle cannot be accurately metered, the ratio of the raw materials to nitric acid is not fixed, the quality of the products is unstable, the reaction process is one-time reaction, all the raw materials cannot be determined to react with the nitric acid, and the quality of the products is uncontrollable.
In order to solve the technical problems, the invention provides the following technical scheme:
The production process for the mineral source nitro humic acid comprises a raw material bin, an acid preparation tank, a quantitative conveyor, a vertical reaction kettle, a vibration screening machine, a temporary storage bin, a Raymond mill and a material collector, wherein the production process comprises the following steps of;
Firstly, conveying raw coal in a raw material bin to a vertical reaction kettle by a quantitative conveyor, spraying nitric acid prepared in an acid preparation tank on raw materials in the vertical reaction kettle through an acid preparation pump to react with the raw materials, and stirring the materials in the vertical reaction kettle in a vertically rolling way, so that a large amount of raw materials are uniformly mixed in a short time and activated for reaction;
Step two, enabling the activated product to enter a vibrating screening machine from an outlet at the lower end of the vertical reaction kettle through a connecting pipeline for screening, enabling the activated material to enter a material temporary storage bin through an oversize outlet of the vibrating screening machine, and returning the unactivated material to a raw material bin through an undersize outlet of the vibrating screening machine;
and thirdly, enabling the activated material to enter a Raymond mill, enabling the product to be further fully activated for reaction through physical grinding, grinding the product to the required mesh number, enabling the product reaching the required mesh number to enter a material collector, and finally packaging through a material outlet.
Preferably, in the first step, the spraying amount and the spraying speed of the nitric acid are adjustable by an acid preparing pump according to different sources of raw materials and different requirements on product quality.
Preferably, the acid preparing tank and the vertical reaction kettle are connected with an exhaust gas treatment system, a small amount of smoke can be generated in the reaction process of the vertical reaction kettle, and a small amount of nitric acid volatile matters in the smoke and the acid preparing tank are treated by the exhaust gas treatment system.
Preferably, the waste gas treatment system is a waste gas absorption system in the dry-process production of the mineral source nitro humic acid.
Preferably, the Raymond mill and the collector are connected with a dust remover, a conveying pump is arranged between the dust remover and the collector, and a dust outlet is arranged on the dust remover.
Preferably, the vertical reaction kettle comprises a stirring barrel, a hollow shaft is arranged in the stirring barrel, a mounting plate is fixedly connected to the bottom end of the hollow shaft, rotating rods parallel to the inner wall of the stirring barrel are connected to the left side and the right side of the mounting plate through bearings in a rotating mode, rollers are fixedly connected to the top ends of the rotating rods, the rollers are in contact with the inner wall of the stirring barrel, scraping components are arranged at the bottom ends of the rotating rods, the top ends of the hollow shaft penetrate through the upper surface of the stirring barrel, the hollow shaft is rotationally connected with the stirring barrel through bearings, a rotating shaft is connected to the inside of the hollow shaft through bearings in a rotating mode, a spiral stirrer is fixedly connected to the outer surface of the bottom end of the rotating shaft, driving components are arranged on the top ends of the hollow shaft and the rotating shaft, and nitric acid spraying components are mounted on the inner top of the stirring barrel.
Preferably, the agitator is the toper structure, the bottom fixedly connected with discharging pipe of agitator, the left and right sides of agitator upper surface is fixedly connected with inlet pipe and waste gas exit tube respectively.
Preferably, the scraping assembly comprises a fixed box fixedly connected to the bottom end of the rotary rod, a rectangular sliding block is slidably connected to the inside of the fixed box, fixing rods are fixedly connected to two sides of the rectangular sliding block, one ends of the fixing rods, far away from the rectangular sliding block, penetrate through the fixed box and are fixedly connected with a fixing plate, the fixing rods are slidably connected with the fixed box, springs are sleeved on the outer surfaces of the fixing rods, the outer surfaces of the fixing rods are sleeved with springs, one side of each fixing plate is fixedly connected with a scraping plate, and the scraping plates are in contact with the inner wall of the stirring barrel.
Preferably, the driving assembly comprises a box fixedly connected to the upper surface of the stirring barrel, a gear motor is fixedly connected to the upper surface of the box, the output end of the gear motor is located in the stirring barrel and is fixedly connected with a first gear and a second gear, the first gear is larger than the diameter of the second gear, the top ends of the rotating shaft and the hollow shaft are located in the box and are respectively and fixedly connected with a third gear and a fourth gear, and the third gear and the fourth gear are respectively connected with the first gear and the second gear in a meshed mode.
Preferably, the nitric acid sprays the subassembly and includes the fixed pipe of fixed connection inside agitator top, fixed pipe's right-hand member lower surface mounting has a plurality of spray nozzles, fixed pipe left end is linked together with joining in marriage the acid pump, install the control box on the fixed pipe, the inside fixedly connected with baffle of control box, the through-hole has been seted up on the baffle, the left side of through-hole is provided with the sealing block, the right side fixedly connected with slide bar of sealing block, the right-hand member of slide bar runs through control box and fixedly connected with arc piece, the surface cover of slide bar is equipped with the second spring, slide bar and control box sliding connection.
Compared with the prior art, the invention has at least the following beneficial effects:
1. The vertical reaction kettle is adopted, and the mixture adhered to the inner wall of the stirring barrel is scraped by the scraping component with revolution and rotation, so that the mixture is fully and uniformly mixed, the mixing time is shortened, the working efficiency is improved, and even if the specific gravity and the particle size of materials are different, the good mixing effect can be achieved under the staggered throwing of the stirring blades, and no dead angle exists.
2. The gyro wheel rotates to the left side and can extrude the arc piece, and the arc piece receives to drive slide bar and sealing block after the extrusion and removes and compress the second spring left and right sides intercommunication that makes the fixed pipe this moment, joins in marriage the nitric acid that disposes in the sour jar and follow the spray nozzle blowout along the fixed pipe, stops stirring back sealing block and blocks up the through-hole through the restoring force of second spring to prevent nitric acid blowout, realize the automatic spraying of nitric acid, avoid appearing extravagant.
3. The raw material feeding adopts a quantitative conveyor, so that the constant coal acid ratio in the reaction process and the stable product quality are ensured.
4. And (3) through screening, the unactivated materials reenter the raw material bin to participate in secondary activation, so that the controllable product quality is ensured.
5. The activated product is further fully reacted through physical grinding, so that the activation quality of the product is improved.
Drawings
The accompanying drawings, which are incorporated herein and form a part of the specification, illustrate embodiments of the present disclosure and, together with the description, further serve to explain the principles of the disclosure and to enable a person skilled in the pertinent art to make and use the disclosure.
FIG. 1 is a schematic flow diagram of a process for producing mining nitrohumic acid;
FIG. 2 is a schematic structural diagram of a vertical reaction kettle for the production process of the mining source nitro humic acid;
FIG. 3 is a schematic cross-sectional structure of a vertical reactor for the production process of mining nitrohumic acid;
FIG. 4 is an enlarged schematic view of the structure shown at A in FIG. 3;
FIG. 5 is an enlarged schematic view of the structure shown at B in FIG. 3;
FIG. 6 is a schematic diagram of the internal structure of a vertical reactor for the production process of the mining source nitro humic acid;
fig. 7 is a schematic structural diagram of a scraping assembly for the production process of the mining source nitro humic acid.
[ Reference numerals ]
1. Raw material bin, 2 acid distribution tank, 3 quantitative conveyor, 4 vertical reaction kettle, 5 vibration screening machine, 6 temporary storage bin, 7 Raymond mill, 8 collector, 9 acid distribution pump, 10 screen outlet, 11 screen outlet, 12 material outlet, 13 exhaust gas treatment system, 14, dust collector, 15, conveying pump, 16, dust outlet, 17, stirring barrel, 18, hollow shaft, 19, mounting plate, 20, rotary rod, 21, roller, 22, scraping component, 23, rotary shaft, 24, spiral stirrer, 25, driving component, 26, nitric acid spraying component, 1701, discharging pipe, 1702, feeding pipe, 1703, exhaust gas outlet pipe, 2201, fixed box, 2202, rectangular slide block, 2203, fixed rod, 2204, fixed plate, 2205, spring, 2206, scraping plate, 2501, box body, 2502, reducing motor, 2503, first gear, 2504, second gear, 2505, third gear, 6, fourth gear, 2601, fixed block 2602, 2503, sliding bar 2608, arc-shaped through hole 2608, arc-shaped through hole 2608 and 2608.
While particular structures and devices are shown in the drawings to enable a clear implementation of embodiments of the invention, this is for illustrative purposes only and is not intended to limit the invention to the particular structures, devices and environments, which may be modified or adapted by those of ordinary skill in the art, as desired, and which remain within the scope of the appended claims.
Detailed Description
The invention provides a production process of the mining source nitro humic acid, which is described in detail below with reference to the accompanying drawings and specific examples. While the invention has been described herein in detail in order to make the embodiments more detailed, the following embodiments are preferred and can be embodied in other forms as well known to those skilled in the art, and the accompanying drawings are only for the purpose of describing the embodiments more specifically and are not intended to limit the invention to the specific forms disclosed herein.
It should be noted that references in the specification to "one embodiment," "an example embodiment," "some embodiments," etc., indicate that the embodiment described may include a particular feature, structure, or characteristic, but every embodiment may not necessarily include the particular feature, structure, or characteristic. Further, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is submitted that it is within the knowledge of one skilled in the relevant art to effect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.
Generally, the terminology may be understood, at least in part, from the use of context. For example, the term "one or more" as used herein may be used to describe any feature, structure, or characteristic in a singular sense, or may be used to describe a combination of features, structures, or characteristics in a plural sense, depending at least in part on the context. In addition, the term "based on" may be understood as not necessarily intended to convey an exclusive set of factors, but may instead, depending at least in part on the context, allow for other factors that are not necessarily explicitly described.
It is to be understood that the meaning of "on," "above," "over," and "above" in this disclosure should be read in the broadest manner so that "on" means not only "directly on" something but also includes "on" something with intervening features or layers therebetween, and "on" or "above" means not only "on" or "over" but also may include the meaning of "on" or "over" it without intervening features or layers therebetween.
Furthermore, spatially relative terms such as "under," "below," "lower," "above," "upper," and the like may be used herein for ease of description to describe one element or feature's relationship to another element or feature as illustrated in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. The device may be otherwise oriented and the spatially relative descriptors used herein may similarly be interpreted accordingly.
As shown in fig. 1 to 7, the embodiment of the invention provides a production process for a mining nitrohumic acid, which comprises a raw material bin 1, an acid preparation tank 2, a quantitative conveyor 3, a vertical reaction kettle 4, a vibration screening machine 5, a temporary storage bin 6, a Raymond mill 7 and a collector 8, wherein the production process comprises the following steps of;
Firstly, conveying raw coal in a raw material bin 1 to a vertical reaction kettle 4 by a quantitative conveyor 3, spraying nitric acid prepared in an acid preparation tank 2 on raw materials in the vertical reaction kettle 4 through an acid preparation pump 9 to react with the raw materials, and enabling the materials to roll and stir up and down in the vertical reaction kettle 4 to ensure that a large amount of raw materials are uniformly mixed and activated for reaction in a short time;
And secondly, enabling the activated product to enter the vibrating screening machine 5 through a connecting pipeline from the lower end outlet of the vertical reaction kettle 4 for screening, enabling the activated material to enter the material temporary storage bin 6 through the oversize material outlet 10 of the vibrating screening machine 5, and returning the unactivated material to the raw material bin 1 through the undersize material outlet 11 of the vibrating screening machine 5.
Step three, the activated materials enter a Raymond mill 7, products are further fully activated and reacted through physical grinding, the products are ground to the required product mesh number, the products reaching the requirements enter a material collector 8, and finally the products are packaged through a material outlet 12;
In the embodiment, in the first step, the spraying amount and the spraying speed of the nitric acid are adjustable by the acid preparing pump 9 according to different sources of raw materials and different requirements on product quality.
In this embodiment, the acid preparing tank 2 and the vertical reaction kettle 4 are connected with an exhaust gas treatment system 13, a small amount of flue gas is generated in the reaction process of the vertical reaction kettle 4, and the flue gas and a small amount of nitric acid volatile in the acid preparing tank 2 are treated by the exhaust gas treatment system 13.
In this embodiment, the exhaust gas treatment system 13 is an exhaust gas absorption system in the dry process for producing the mining source nitro humic acid.
In the embodiment, the Raymond mill 7 and the collector 8 are connected with a dust remover 14, a conveying pump 15 is arranged between the dust remover 14 and the collector 8, and a dust outlet 16 is arranged on the dust remover 14.
As shown in fig. 1 and 3, in this embodiment, the vertical reaction kettle 4 includes a stirring barrel 17, a hollow shaft 18 is provided in the stirring barrel 17, a mounting plate 19 is fixedly connected to the bottom end of the hollow shaft 18, rotating rods 20 parallel to the inner wall of the stirring barrel 17 are rotatably connected to the left and right sides of the mounting plate 19 through bearings, rollers 21 are fixedly connected to the top ends of the rotating rods 20, the rollers 21 are in contact with the inner wall of the stirring barrel 17, a scraping component 22 is provided at the bottom ends of the rotating rods 20, the top ends of the hollow shaft 18 penetrate through the upper surface of the stirring barrel 17, the hollow shaft 18 is rotatably connected with the stirring barrel 17 through bearings, a rotating shaft 23 is rotatably connected to the inside of the hollow shaft 18 through bearings, a spiral stirrer 24 is fixedly connected to the bottom end outer surface of the rotating shaft 23, a driving component 25 is provided at the top ends of the hollow shaft 18 and the rotating shaft 23, and a nitric acid spraying component 26 is mounted at the inner top of the stirring barrel 17.
The nitric acid prepared in the acid preparation tank 2 is sprayed on the raw materials in the vertical reaction kettle 4 to react with the raw materials by the acid preparation pump 9, meanwhile, the driving assembly 25 drives the rotating shaft 23 and the hollow shaft 18 to rotate, the rotating shaft 23 can drive the spiral stirrer 24 to rotate in the rotating process, the raw materials and the nitric acid lift the raw materials from the center to the top end in the vertical reaction kettle 4 by utilizing the rotating speed of the spiral stirrer 24, the materials are thrown again, the materials are stirred in the stirring barrel 17 in a vertically rolling manner, the hollow shaft 18 can drive the scraping assembly 22 to scrape the mixture adhered to the inner wall of the stirring barrel 17 in the rotating process, the mixture is fully and uniformly mixed, and the mixing efficiency of the vertical reaction kettle 4 is improved.
As shown in fig. 2 and 3, in this embodiment, the stirring barrel 17 has a conical structure, the bottom end of the stirring barrel 17 is fixedly connected with a discharge pipe 1701, and the left and right sides of the upper surface of the stirring barrel 17 are respectively and fixedly connected with a feed pipe 1702 and an exhaust gas outlet pipe 1703.
The quantitative conveyor 3 is arranged in this way to convey raw coal in the raw material bin 1 into the vertical reaction kettle 4 through the feeding pipe 1702, and the activated product enters the vibratory screening machine 5 through the discharging pipe 1701 of the vertical reaction kettle 4 for screening.
As shown in fig. 3, 6 and 7, in this embodiment, the scraping assembly 22 includes a fixing box 2201 fixedly connected to the bottom end of the rotary rod 20, a rectangular slider 2202 is slidably connected to the inside of the fixing box 2201, fixing rods 2203 are fixedly connected to both sides of the rectangular slider 2202, one end of each fixing rod 2203, far away from the rectangular slider 2202, penetrates through the fixing box 2201 and is fixedly connected to a fixing plate 2204, the fixing rods 2203 are slidably connected to the fixing box 2201, a spring 2205 is sleeved on the outer surface of the fixing rod 2203, located inside the fixing box 2201, a scraper 2206 is fixedly connected to one side of the fixing plate 2204, and the scraper 2206 is in contact with the inner wall of the stirring barrel 17.
The spring 2205 is arranged in such a way that the scraping plate 2206 is tightly attached to the inner wall of the stirring barrel 17, the roller 21 can drive the rotating rod 20, the fixing box 2201, the fixing rod 2203, the fixing plate 2204 and the scraping plate 2206 to rotate in the rolling process, and the scraping plate 2206 scrapes materials thrown to the inner wall of the stirring barrel 17 in the rotating process.
As shown in fig. 3 and 5, in the present embodiment, the driving assembly 25 includes a casing 2501 fixedly connected to the upper surface of the stirring barrel 17, a gear motor 2502 is fixedly connected to the upper surface of the casing 2501, an output end of the gear motor 2502 is located inside the stirring barrel 17 and is fixedly connected to a first gear 2503 and a second gear 2504, the first gear 2503 is larger than the second gear 2504 in diameter, top ends of the rotating shaft 23 and the hollow shaft 18 are located inside the casing 2501 and are fixedly connected to a third gear 2505 and a fourth gear 2506, and the third gear 2505 and the fourth gear 2506 are respectively meshed with the first gear 2503 and the second gear 2504.
The gear motor 2502 is started to drive the first gear 2503 and the second gear 2504 to rotate, and the first gear 2503 and the second gear 2504 respectively cooperate with the third gear 2505 and the fourth gear 2506 in the rotating process to drive the rotating shaft 23 and the hollow shaft 18 to rotate.
As shown in fig. 3 and 4, in this embodiment, the nitric acid spraying assembly 26 includes a fixing tube 2601 fixedly connected to the inside of the top end of the stirring barrel 17, a plurality of spraying nozzles 2602 are mounted on the lower surface of the right end of the fixing tube 2601, the left end of the fixing tube 2601 is communicated with the acid pump 9, a control box 2603 is mounted on the fixing tube 2601, a partition plate 2604 is fixedly connected to the inside of the control box 2603, a through hole 2605 is formed in the partition plate 2604, a sealing block 2606 is arranged on the left side of the through hole 2605, a sliding rod 2607 is fixedly connected to the right side of the sealing block 2606, the right end of the sliding rod 2607 penetrates through the control box 2603 and is fixedly connected with an arc-shaped block 2608, a second spring 2609 is sleeved on the outer surface of the sliding rod 2607, and the sliding rod 2607 is slidably connected with the control box 2603.
In this way, the nitric acid spraying assembly 26 is installed above the vertical reaction kettle 4, and the nitric acid arranged in the acid preparation tank 2 is sprayed on the raw materials in the vertical reaction kettle 4 through the acid preparation pump 9 to react with the raw materials.
According to the technical scheme provided by the invention, raw coal is placed in a raw material bin 1 during production, the raw coal in the raw material bin 1 is conveyed into a vertical reaction kettle 4 through a quantitative conveyor 3, as a nitric acid spraying component 26 is arranged above the vertical reaction kettle 4, nitric acid prepared in an acid preparation tank 2 is sprayed on raw materials in the vertical reaction kettle 4 through an acid preparation pump 9 to react with the raw materials, meanwhile, a gear motor 2502 drives a first gear 2503 and a second gear 2504 to rotate, the first gear 2503 and the second gear 2504 are respectively matched with a third gear 2505 and a fourth gear 2506 in the rotating process to drive a rotating shaft 23 and a hollow shaft 18 to rotate, the rotating shaft 23 can drive a spiral stirrer 24 to rotate in the rotating process, and the raw materials and the nitric acid are lifted from the bottom to the top end by utilizing the rotating speed of the spiral stirrer 24 in the vertical reaction kettle 4, the materials are thrown up and down in the stirring barrel 17, the materials sprayed at the initial stage of stirring are stirred up and down, and as the materials are not completely soaked, the mixture is continuously thrown to the inner wall of the stirring barrel 17 and piled up, at the moment, the hollow shaft 18 can drive the mounting plate 19, the rotating rod 20 and the roller 21 to rotate in the rotating process, the roller 21 can roll along the inner wall of the stirring barrel 17 in the rotating process, the roller 21 can drive the rotating rod 20, the fixing box 2201, the fixing rod 2203, the fixing plate 2204 and the scraping plate 2206 to rotate in the rolling process, and the scraping plate 2206 scrapes the materials thrown to the inner wall of the stirring barrel 17 in the rotating process, so that the mixture adhered to the inner wall of the stirring barrel 17 is scraped by the scraping assembly 22 for revolution and rotation, the mixture is fully and uniformly mixed, and the mixing efficiency of the vertical reaction kettle 4 is improved;
Meanwhile, when the roller 21 rotates to the left side, the arc-shaped block 2608 is extruded, the arc-shaped block 2608 drives the sliding rod 2607 and the sealing block 2606 to move leftwards and compress the second spring 1609 after being extruded, at the moment, the left side and the right side of the fixing tube 2601 are communicated through the through hole 2605, nitric acid configured in the acid preparation tank 2 is sprayed out from the spraying nozzle 2602 along the fixing tube 2601, the sealing block 2606 blocks the through hole 2605 through the restoring force of the second spring 1609 after stirring is stopped, so that the nitric acid is prevented from being sprayed out, the automatic spraying of the nitric acid is realized, and the waste is avoided;
The evenly mixed materials are activated in a vertical reaction kettle 4, the activated products enter a vibration screening machine 5 through a discharge pipe 1701 of the vertical reaction kettle 4 to be screened through a connecting pipeline, aggregates are formed after the raw materials are activated and reacted with nitric acid, at the moment, the activated materials enter a material temporary storage bin 6 through an oversize material outlet 10 of the vibration screening machine 5, the unactivated materials return to a raw material bin 1 through an undersize material outlet 11 of the vibration screening machine 5, then the fully activated materials enter a Raymond mill 7, the products are subjected to further fully activating reaction through physical grinding, the products are ground to reach the required product mesh number, the products enter a material collector 8, and finally the products are packaged through a material outlet 12 on the material collector 8;
In the reaction process of the vertical reaction kettle 4, a small amount of flue gas can be generated, the flue gas is treated by the waste gas treatment system 13, a small amount of nitric acid volatile matters in the acid preparing tank 2 also enter the waste gas treatment system 13 for treatment, the waste gas treatment system 13 can be an waste gas absorption system in the dry process production of the mineral source nitro humic acid with the publication number CN216457986U, dust can be generated in the use process of the Raymond mill 7 and the collector 8, the dust is treated by the dust remover 14, and the collected dust is discharged from the dust outlet 16 for subsequent treatment.
The invention is intended to cover any alternatives, modifications, equivalents, and variations that fall within the spirit and scope of the invention. In the following description of preferred embodiments of the invention, specific details are set forth in order to provide a thorough understanding of the invention, and the invention will be fully understood to those skilled in the art without such details. In other instances, well-known methods, procedures, flows, components, circuits, and the like have not been described in detail so as not to unnecessarily obscure aspects of the present invention.
Those of ordinary skill in the art will appreciate that all or a portion of the steps in implementing the methods of the above embodiments may be implemented by a program that instructs associated hardware, and the program may be stored on a computer readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc.
The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.
Claims (7)
1. The production process for the mineral source nitro humic acid is characterized by comprising a raw material bin, an acid preparation tank, a quantitative conveyor, a vertical reaction kettle, a vibration screening machine, a temporary storage bin, a Raymond mill and a material collector, wherein the production process comprises the following steps of;
Firstly, conveying raw coal in a raw material bin to a vertical reaction kettle by a quantitative conveyor, spraying nitric acid prepared in an acid preparation tank on raw materials in the vertical reaction kettle through an acid preparation pump to react with the raw materials, and stirring the materials in the vertical reaction kettle in a vertically rolling way, so that a large amount of raw materials are uniformly mixed in a short time and activated for reaction;
Step two, enabling the activated product to enter a vibrating screening machine from an outlet at the lower end of the vertical reaction kettle through a connecting pipeline for screening, enabling the activated material to enter a material temporary storage bin through an oversize outlet of the vibrating screening machine, and returning the unactivated material to a raw material bin through an undersize outlet of the vibrating screening machine;
Thirdly, enabling the activated materials to enter a Raymond mill, enabling the products to be further fully activated and reacted through physical grinding, grinding the products to the required product mesh number, enabling the products meeting the requirements to enter a material collector, and finally packaging through a material outlet;
The vertical reaction kettle comprises a stirring barrel, a hollow shaft is arranged in the stirring barrel, a mounting plate is fixedly connected to the bottom end of the hollow shaft, rotating rods parallel to the inner wall of the stirring barrel are rotatably connected to the left side and the right side of the mounting plate through bearings, rollers are fixedly connected to the top ends of the rotating rods, the rollers are in contact with the inner wall of the stirring barrel, a scraping component is arranged at the bottom end of the rotating rods, the top ends of the hollow shaft penetrate through the upper surface of the stirring barrel, the hollow shaft is rotatably connected with the stirring barrel through bearings, a rotating shaft is rotatably connected to the inside of the hollow shaft through bearings, a spiral stirrer is fixedly connected to the outer surface of the bottom end of the rotating shaft, driving components are arranged at the top ends of the hollow shaft and the rotating shaft, and a nitric acid spraying component is arranged at the inner top of the stirring barrel;
the scraping assembly comprises a fixed box fixedly connected to the bottom end of the rotary rod, a rectangular sliding block is slidably connected in the fixed box, fixing rods are fixedly connected to two sides of the rectangular sliding block, one end, away from the rectangular sliding block, of the fixing rod penetrates through the fixed box and is fixedly connected with a fixing plate, the fixing rod is slidably connected with the fixed box, a spring is sleeved on the outer surface, located inside the fixed box, of the fixing rod, a scraping plate is fixedly connected to one side of the fixing plate, and the scraping plate is in contact with the inner wall of the stirring barrel;
the nitric acid spraying assembly comprises a fixed pipe fixedly connected to the inside of the top end of the stirring barrel, a plurality of spraying nozzles are mounted on the lower surface of the right end of the fixed pipe, the left end of the fixed pipe is communicated with the acid distribution pump, a control box is mounted on the fixed pipe, a partition plate is fixedly connected to the inside of the control box, a through hole is formed in the partition plate, a sealing block is arranged on the left side of the through hole, a sliding rod is fixedly connected to the right side of the sealing block, the right end of the sliding rod penetrates through the control box and is fixedly connected with an arc-shaped block, the roller rotates to the left side to squeeze the arc-shaped block, a second spring is sleeved on the outer surface of the sliding rod, and the sliding rod is in sliding connection with the control box.
2. The process for producing the mining-source nitro humic acid according to claim 1, wherein in the first step, the spraying amount and the spraying speed of the nitric acid are adjustable by an acid preparing pump according to different raw material sources and different product quality requirements.
3. The process for producing the mining-source nitro-humic acid according to claim 2, wherein the acid preparing tank and the vertical reaction kettle are connected with an exhaust gas treatment system, a small amount of smoke is generated in the reaction process of the vertical reaction kettle, and the smoke and a small amount of nitric acid volatile in the acid preparing tank are treated by the exhaust gas treatment system.
4. The process for producing mining-source nitro-humic acid according to claim 3, wherein the waste gas treatment system is an waste gas absorption system in dry production of mining-source nitro-humic acid.
5. The process for producing the mining nitrohumic acid according to claim 4, wherein the Raymond mill and the collector are connected with a dust remover, a conveying pump is arranged between the dust remover and the collector, and a dust outlet is arranged on the dust remover.
6. The process for producing the mining-source nitro-humic acid according to claim 1, wherein the stirring barrel is of a conical structure, a discharging pipe is fixedly connected to the bottom end of the stirring barrel, and a feeding pipe and an exhaust gas outlet pipe are respectively and fixedly connected to the left side and the right side of the upper surface of the stirring barrel.
7. The process for producing the mining-source nitro humic acid according to claim 1, wherein the driving assembly comprises a box body fixedly connected to the upper surface of the stirring barrel, a speed reducing motor is fixedly connected to the upper surface of the box body, the output end of the speed reducing motor is positioned in the stirring barrel and is fixedly connected with a first gear and a second gear, the first gear is larger than the diameter of the second gear, the top ends of the rotating shaft and the hollow shaft are positioned in the box body and are respectively fixedly connected with a third gear and a fourth gear, and the third gear and the fourth gear are respectively meshed with the first gear and the second gear.
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| CN202311135301.0A CN117138721B (en) | 2023-09-05 | 2023-09-05 | A process for producing mineral-derived nitrohumic acid |
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| CN202311135301.0A CN117138721B (en) | 2023-09-05 | 2023-09-05 | A process for producing mineral-derived nitrohumic acid |
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| CN116272822A (en) * | 2023-02-14 | 2023-06-23 | 重庆融通绿源环保股份有限公司 | A continuous automatic dry process for producing mineral source nitrohumic acid |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113207854A (en) * | 2021-05-14 | 2021-08-06 | 安徽北庐建设工程有限公司 | Road green belt insecticidal equipment in winter for municipal works |
| CN215694004U (en) * | 2021-09-18 | 2022-02-01 | 常州烯聚新材料科技有限公司 | Reaction kettle capable of monitoring viscosity of reaction system |
| CN216457986U (en) * | 2021-12-09 | 2022-05-10 | 重庆融通绿源环保股份有限公司 | Waste gas absorption system in dry process production mineral source nitro humic acid |
| CN218307405U (en) * | 2022-07-18 | 2023-01-17 | 青岛顺和昌科技有限公司 | Mixing arrangement is used in titanium white powder processing with limit structure |
| CN218167041U (en) * | 2022-09-20 | 2022-12-30 | 青岛科诺赛生物科技有限公司 | Reaction kettle design structure for activating medium preparation |
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|---|---|---|---|---|
| CN206008537U (en) * | 2016-08-15 | 2017-03-15 | 徐州科建环保科技有限公司 | A kind of building slurry mixing device beneficial to observation control |
| CN216987668U (en) * | 2022-03-14 | 2022-07-19 | 山东昊洋海藻工业有限公司 | Multifunctional vertical reactor for sodium alginate preparation |
| CN116272822A (en) * | 2023-02-14 | 2023-06-23 | 重庆融通绿源环保股份有限公司 | A continuous automatic dry process for producing mineral source nitrohumic acid |
| CN221046066U (en) * | 2023-09-05 | 2024-05-31 | 重庆融通绿源环保股份有限公司 | Be used for mineral source nitro humic acid production system |
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