CN110394119A - A kind of sodium butyrate process for producing granula and its exhaust gas treating method - Google Patents
A kind of sodium butyrate process for producing granula and its exhaust gas treating method Download PDFInfo
- Publication number
- CN110394119A CN110394119A CN201910725930.6A CN201910725930A CN110394119A CN 110394119 A CN110394119 A CN 110394119A CN 201910725930 A CN201910725930 A CN 201910725930A CN 110394119 A CN110394119 A CN 110394119A
- Authority
- CN
- China
- Prior art keywords
- sodium butyrate
- sodium
- tail gas
- butyric acid
- exhaust gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K20/00—Accessory food factors for animal feeding-stuffs
- A23K20/10—Organic substances
- A23K20/105—Aliphatic or alicyclic compounds
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K20/00—Accessory food factors for animal feeding-stuffs
- A23K20/20—Inorganic substances, e.g. oligoelements
- A23K20/22—Compounds of alkali metals
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K40/00—Shaping or working-up of animal feeding-stuffs
- A23K40/10—Shaping or working-up of animal feeding-stuffs by agglomeration; by granulation, e.g. making powders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/16—Evaporating by spraying
- B01D1/18—Evaporating by spraying to obtain dry solids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/72—Organic compounds not provided for in groups B01D53/48 - B01D53/70, e.g. hydrocarbons
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/75—Multi-step processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
-
- 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
- B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
-
- 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
- B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
- B01J2/20—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by expressing the material, e.g. through sieves and fragmenting the extruded length
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/41—Preparation of salts of carboxylic acids
- C07C51/412—Preparation of salts of carboxylic acids by conversion of the acids, their salts, esters or anhydrides with the same carboxylic acid part
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B3/00—Drying solid materials or objects by processes involving the application of heat
- F26B3/02—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air
- F26B3/06—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour flowing through the materials or objects to be dried
- F26B3/08—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour flowing through the materials or objects to be dried so as to loosen them, e.g. to form a fluidised bed
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B2200/00—Drying processes and machines for solid materials characterised by the specific requirements of the drying good
- F26B2200/08—Granular materials
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Food Science & Technology (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Zoology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Animal Husbandry (AREA)
- Inorganic Chemistry (AREA)
- Microbiology (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fodder In General (AREA)
Abstract
The present invention provides a kind of sodium butyrate process for producing granula and its exhaust gas treating methods, the present invention relates to non-antibiotic feed additive for promoting growth preparation fields, the main preparation including butyric acid sodium raw materials, mixing, extrusion, granulation ball blast and drying, it is related to the processing method of the tail gas in preparing butyric acid sodium granules simultaneously, collect the tail gas that spray drying obtains, tail gas is passed through into heat exchanger, collects the heat in tail gas.Then tail gas after cooling is then passed through into two sections of moisture film aeration tower processing, the waste heat of cleaning tail gas is obtained through exchanging heat through heat exchanger, heat is compensated by collet to storage tank again, then remaining clean gas discharge, sodium butyrate process for producing granula of the invention is safe and simple, and controllability is good, environmental protection is reliable.
Description
Technical field
The present invention relates to non-antibiotic feed additive for promoting growth preparation fields, and in particular to a kind of butyric acid sodium granules system
Preparation Method and its exhaust gas treating method.
Background technique
With the promulgation of new feedstuff regulation, implement, antibiotic is prohibited in feed addictive, feed and cultivation industry comprehensively
Only use.The development for passing through many years as the sodium butyrate original powder (feed addictive) of Substitutes For Antibiotic, in feed, cultivation industry
It has been be recognized that, dosage is increasing.The sodium butyrate product of original powder type is 60~120 mesh powders, and specific gravity is smaller, body when transport
Product is big, and transportation cost is high；In use, it is easy to produce dust, the easy moisture absorption and the acid smell taste with rancid cheese, it is inconvenient
In use, amount of powder can also be taken away by induced draught system in process.
To improve sodium butyrate product processing performance, increasing density, reduction specific surface area, meets the needs of different clients, originally
Invention does not add the substances such as any carrier and binder on the basis of not changing butyric acid sodium content, and sodium butyrate original powder is made
At graininess, increases the specific gravity of sodium butyrate, be readily transported, store and use.
Since the 1950s, with use of the antibiotic in feed, animal-breeding level is increasingly promoted, cultivation at
This significant decrease.But a series of problems, such as medicament residue and drug resistance, is also following, and is more concerned by people, peace
Total eclipse product or green food also more have been favored by people.The developed countries such as FAO tissue and the U.S., Europe are to the medicine in food
Object residual limitation is more stringent.European Union in 2006 has completely forbidden use of the antibiotic in feed, and the Ministry of Agriculture, China is also successive
In publication " 5 years action schemes of national veterinary drug comprehensive treatment " in 2015 and publication in 2017 " severe strike Feed Manufacturing with
The illegal notice using veterinary antibacterial behavior of cultivating link " will limit the use of and disable veterinary antibiotic and refers to unprecedented height
Degree.Antibiotic also has become inexorable trend as the disabling of growth accelerator worldwide.Therefore, green, efficient, safety are found
Antibiotic growth accelerator substitute become current feed additive field research hot spot.It is anti-in substitution that butyric acid receives series of products
Raw element functionally has preferable application prospect, is the hot spot product of current feed additive industry concern, production and sales tool
There is good economic income.
Sodium butyrate is butyrate ion as a kind of non-antibiotic feed additive for promoting growth, main function ingredient, tool
There are the multi-efficiencies such as strong phagostimulant, gastrointestinal physiology regulator, acidulant and electrolyte balance regulator, plays raising body and exempt from
The effect of epidemic disease power and production performance can also substitute part antibiotic, be included in " feed addictive product by the Ministry of Agriculture in 2006
Kind of catalogue " in novel fodder additive.
Prepared by the production of sodium butyrate, synthesize predominating path with n-butyric acie and sodium hydroxide.In process of production, n-butyric acie
Neutralization reaction is carried out first and generates sodium butyrate, and reaction liquid obtains solid powdery finished product after high temperature drying again, anti-to promote
Process is answered often to put into excessive butyric acid, dry tail gas carries micro butyric acid and sodium butyrate product, after special cheese corruption
Acid smell.So how butyric acid, sodium butyrate and the waste heat in effective recycling tail gas, realize in high yield, the life of low emission
It produces, just becomes the Important Problems that mass production sodium butyrate needs to study.The present invention is breakthrough traditional handicraft, in production process
In, tail gas recycle use aspects innovated, control synthesis process in important parameter, the material recycle in tail gas is entered into life
Link is produced, the material thermal compensation before the heat recovery in tail gas is used to be spray-dried improves product yield, reduces heat and disappears
Consumption realizes green production while reducing production cost.
Summary of the invention
To solve the above-mentioned problems, the present invention provides a kind of sodium butyrate process for producing granula and its vent gas treatment sides
Method, technique that the present invention selects, equipment belong to pioneering in additive agent for feeding field, have a novelty compared to general technology, and
Without any additive in production process, product purity has been ensured, technically there is advance, a kind of sodium butyrate particle of the invention
Exhaust gas treating method works well after agent preparation, and material is all recovered, and is not polluted the environment, while can also reuse tail gas
The heat of generation, specific summary of the invention are as follows:
The purpose of the present invention is to provide a kind of sodium butyrate process for producing granula and its exhaust gas treating method, technical points
Be: the butyric acid sodium granules the preparation method is as follows:
The preparation of S1 butyric acid sodium raw materials: carrying out neutralization reaction for butyric acid and liquid alkaline and obtain sodium butyrate reaction solution, described will obtain fourth
Sour sodium reaction solution after spray drying system is dry directly from the bottom of spray drying system flow out to obtain water content be 3~
The sodium butyrate crude product of 8wt% is collected powder material from spray drying system bottom position on the upper side via blast system, is directly wrapped
Dress up product；
S2 mixing: the sodium butyrate crude product that water content obtained in step S1 is 3~8wt% is mixed with water, using being furnished with
The mixing machine of high-speed cutting colter carries out uniformly mixed；
S3 extrusion: the step S2 material mixed is even added in banded extruder, is turned by two opposite directions in banded extruder
After the extruding of dynamic and threaded screw rod, two of material from screw front end it is bowl-shape, be respectively provided with 600~1000 apertures and be
The spherical surface extruder head of 0.6~1.2mm circular hole is forced to squeeze out, and under pressure, wet feed is extruded into uniform strip；
S4 granulation ball blast: in the strip material investment shot-blasting machine that step S3 is squeezed out, ball blast motor spindle is 3 using depth
The fluted disc of~6mm is arranged in 30~150r/min, rotation time in 20~100s as cutting face, the setting of fluted disc velocity of rotation
Every batch of.After being cut, throwing circle, strip material is cut off, then is justified through throwing, and forms uniform diameter in 0.6~1.2mm, length
The strip particle in 2~6mm is spent, it is stand-by to give over to lower step.
S5 is dry: the step S4 strip particle being prepared being entered ebullated dryer and is dried, drying time is arranged
100~140 DEG C of intake air temperature, 70~90 DEG C of air outlet temperature, purity can be obtained after to be dried in 20~40min every batch of
98% or more, the graininess sodium butyrate finished product below of moisture 2%.
In the embodiment that has of the present invention, the wherein butyric acid in step S1 described in the preparation method of butyric acid sodium granules
The molal weight ratio reacted with liquid alkaline is 1~1.1:1, the mass percent of the butyric acid and liquid alkaline controls 40~
60wt%.
In the embodiment that has of the present invention, the wherein butyric acid in step S1 described in the preparation method of butyric acid sodium granules
For n-butyric acie, the liquid alkaline is Ionic Membrane.
In the embodiment that has of the present invention, wherein being sprayed in step S1 described in the preparation method of butyric acid sodium granules
The drying condition of dry system are as follows: inlet air temperature is 280~350 DEG C, and leaving air temp is 70~120 DEG C, and pressure is 3~5mPa,
Sodium butyrate crude product residence time in spray drying system is 10~60s.
In the embodiment that has of the present invention, wherein being furnished in step S2 described in the preparation method of butyric acid sodium granules
The mixing speed of the mixing machine of high-speed cutting colter is 100~300r/min, and the cutting colter revolving speed is 500~2000r/
Min, mixing time are 10~15min.
Another object of the present invention is that providing exhaust gas treating method after a kind of sodium butyrate granule preparation, technology
Point is: the processing method of tail gas is as follows after the sodium butyrate granule preparation:
S1 collects the tail gas that spray drying obtains, and tail gas is passed through heat exchanger, the temperature of the heat exchanger water inlet is
20~30 DEG C, the temperature of water outlet is 60~80 DEG C, and then the water in heat exchanger is recycled to feed liquid storage tank clamping sleeve from water outlet；
S2 step S1 tail gas after cooling then passes through two sections of moisture film aeration tower processing, and first stage tower is alkali liquid washing, is absorbed
Wherein extra butyric acid residual is back to storage tank, and second level tower is clear water washing, absorbs remaining sodium butyrate product, is back to storage
Tank；
S3 is exchanged heat the waste heat of S2 treated cleaning tail gas through heat exchanger, then heat is compensated by collet to storage tank,
Then remaining clean gas discharge.
In the embodiment having of the invention, step described in exhaust gas treating method after one of sodium butyrate granule preparation
The lye in first stage tower in rapid S2 is the lye that concentration is 0.5~2mol/L.
In the embodiment having of the invention, step described in exhaust gas treating method after one of sodium butyrate granule preparation
The lye in first stage tower in rapid S2 is one of sodium hydroxide solution, sodium carbonate liquor or sodium bicarbonate solution or several
Kind mixture.
Compared with prior art, the beneficial effects of the present invention are:
1. a kind of sodium butyrate process for producing granula of the invention does not add any auxiliary material, adhesive in pelletization
And unclassified stores.Common process, needs to be added the adhesives such as xanthan gum, sodium alginate, CMA and moulding agent, substance of this kind for
Without nutrition or health-care effect for animal, and the raw material of biomass source increases the risk for introducing harmful bacteria, also increases
The cost of granulation, using n-butyric acie and Ionic Membrane neutralization reaction prepares sodium butyrate, eliminates the behaviour of dissolution sodium hydroxide
Make, and reaction is easily achieved, process is controllable, it is more clear for the control of synthetic end point, clear.
2. a kind of granulation mode that sodium butyrate process for producing granula uses of the invention has advance, in feedstuff industry
It is middle to use precedent without other.Tradition is granulated to wave granulation, and gained granule strength is inadequate, and needs that adhesive is added.
3. a kind of sodium butyrate process for producing granula of the invention solves the by-product in spray drying system, by these
Moisture is high, it is blocking, at the byproduct to stick together as particle butyric acid sodium raw materials, realize the recycling of solid waste, dry technology
Advanced, for single stepping by synthetic liquid convection drying to finished product, saving is a large amount of artificial, and product purity is high, granularity is equal
Even, appearance is preferable.
4. a kind of particle sodium butyrate product particle degree that sodium butyrate process for producing granula is produced of the invention is equal
Even, content is high, the content with sodium butyrate original powder be it is the same, specific gravity doubles for sodium butyrate original powder, convenient for fortune
Defeated, storage, substantially without dust in use process, acid smell road mitigates significantly, is not easy moisture absorption agglomeration.
5. the environmental protection that exhaust gas treating method solves the production after a kind of sodium butyrate granule preparation of the invention is asked
Topic, the discharge of no waste water, waste liquid are absorbed by exhaust treatment system, and only outside vent water vapor, meets environmental requirements.
6. exhaust gas treating method is in workshop splicing, weighing, packaging after a kind of sodium butyrate granule preparation of the invention
Post all carries out in the room for sealing, having induced draught system and keeping negative wind pressure, and the powder dust that induced draught system is drawn is whole
Into water dust scrubber, after three water film dedustings, tail gas at the top of water dust scrubber by being discharged, the water solution cycle after absorption
Certain time is absorbed, is reached after a certain concentration by centrifugal filtration, recycled to leading portion synthesis procedure prevents entirely to produce
The appearance of dust in journey improves product yield.
7. exhaust gas treating method is in condensation tail gas, emission process after a kind of sodium butyrate granule preparation of the invention
In, generate a large amount of recycling heat, by this heat focus utilization in production leading portion, carry out heat supplement for predrying liquid, keep to
Dry liquid temperature, this heat is that the air inlet of fuel gas hot-blast stove is preheated when winter, energy consumption is reduced, thus further
Reduce production cost.
Detailed description of the invention
Fig. 1 is the flow chart of of the invention a kind of sodium butyrate process for producing granula and its exhaust gas treating method；
Fig. 2 is the flow chart of exhaust gas treating method after a kind of sodium butyrate granule preparation of the invention.
Specific embodiment
The technical scheme in the embodiments of the invention will be clearly and completely described below, so that the technology of this field
Personnel can better understand advantages and features of the invention, to make apparent boundary to protection scope of the present invention
It is fixed.Embodiment described in the invention is only a part of the embodiment of the present invention, instead of all the embodiments, based on the present invention
In embodiment, those of ordinary skill in the art's every other implementation obtained without making creative work
Example, shall fall within the protection scope of the present invention.
Embodiment 1
Of the invention a kind of sodium butyrate process for producing granula and its exhaust gas treating method are as follows:
The preparation of S1 butyric acid sodium raw materials: carrying out neutralization reaction for n-butyric acie and Ionic Membrane and obtain sodium butyrate reaction solution, will
Described the sodium butyrate reaction solution after spray drying system is dry directly flow out to obtain from the bottom of spray drying system it is aqueous
Amount is the sodium butyrate crude product of 5.5wt%, collects powder material from spray drying system bottom position on the upper side via blast system,
Direct packed products；
S2 mixing: the sodium butyrate crude product that water content obtained in step S1 is 5.5wt% is mixed with water, using equipped with height
The mixing machine of speed cutting colter carries out uniformly mixed；
S3 extrusion: the step S2 material mixed is even added in banded extruder, is turned by two opposite directions in banded extruder
After the extruding of dynamic and threaded screw rod, two of material from screw front end it is bowl-shape, be respectively provided with 800 apertures as 0.9mm
The spherical surface extruder head of circular hole is forced to squeeze out, and under pressure, wet feed is extruded into uniform strip；
S4 granulation ball blast: in the strip material investment shot-blasting machine that step S3 is squeezed out, ball blast motor spindle is using depth
The fluted disc of 4.5mm is arranged in 90r/min, rotation time in 60s every batch of as cutting face, the setting of fluted disc velocity of rotation.Through cutting
After cutting, throwing circle, strip material is cut off, then is justified through throwing, and forms uniform diameter in 0.9mm, strip of the length in 4mm
Grain, it is stand-by to give over to lower step.
S5 is dry: the step S4 strip particle being prepared being entered ebullated dryer and is dried, drying time is arranged
120 DEG C of intake air temperature, 80 DEG C of air outlet temperature, 98% or more purity, moisture 2% can be obtained in 30min every batch of after to be dried
Graininess sodium butyrate finished product below.
The wherein molal weight that the butyric acid in step S1 described in the preparation method of butyric acid sodium granules is reacted with liquid alkaline
Than for 1.05:1, the mass percent of the butyric acid and liquid alkaline is controlled in 50wt%.
The wherein drying condition of the spray drying system in step S1 described in the preparation method of butyric acid sodium granules are as follows:
Inlet air temperature is 315 DEG C, and leaving air temp is 95 DEG C, and pressure 4mPa, the sodium butyrate crude product stops in spray drying system
The time stayed is 35s.
The wherein mixing machine equipped with high-speed cutting colter in step S2 described in the preparation method of butyric acid sodium granules
Mixing speed be 200r/min, the cutting colter revolving speed be 1250r/min, mixing time 12.5min.
Exhaust gas treating method is as follows after a kind of sodium butyrate granule preparation of the invention:
S1 collects the tail gas that spray drying obtains, and tail gas is passed through heat exchanger, the temperature of the heat exchanger water inlet is
25 DEG C, the temperature of water outlet is 70 DEG C, and then the water in heat exchanger is recycled to feed liquid storage tank clamping sleeve from water outlet；
S2 step S1 tail gas after cooling then passes through the processing of two sections of moisture film aeration towers, and first stage tower is that substance must measure concentration and be
1.25mol/L sodium hydroxide solution is washed, and wherein extra butyric acid residual is absorbed, and is back to storage tank, and second level tower is clear water
Washing, absorbs remaining sodium butyrate product, is back to storage tank；
S3 is exchanged heat the waste heat of S2 treated cleaning tail gas through heat exchanger, then heat is compensated by collet to storage tank,
Then remaining clean gas discharge.
Embodiment 2
Of the invention a kind of sodium butyrate process for producing granula and its exhaust gas treating method are as follows:
The preparation of S1 butyric acid sodium raw materials: carrying out neutralization reaction for n-butyric acie and Ionic Membrane and obtain sodium butyrate reaction solution, will
Described the sodium butyrate reaction solution after spray drying system is dry directly flow out to obtain from the bottom of spray drying system it is aqueous
Amount is the sodium butyrate crude product of 3wt%, collects powder material from spray drying system bottom position on the upper side via blast system, directly
Connect packed products；
S2 mixing: the sodium butyrate crude product that water content obtained in step S1 is 3wt% is mixed with water, using equipped with high speed
The mixing machine of cutting colter carries out uniformly mixed；
S3 extrusion: the step S2 material mixed is even added in banded extruder, is turned by two opposite directions in banded extruder
After the extruding of dynamic and threaded screw rod, two of material from screw front end it is bowl-shape, be respectively provided with 1000 apertures as 0.6mm
The spherical surface extruder head of circular hole is forced to squeeze out, and under pressure, wet feed is extruded into uniform strip；
S4 granulation ball blast: in the strip material investment shot-blasting machine that step S3 is squeezed out, ball blast motor spindle is using depth
The fluted disc of 3mm is arranged in 30r/min, rotation time in 20s every batch of as cutting face, the setting of fluted disc velocity of rotation.Through cutting
After cutting, throwing circle, strip material is cut off, then is justified through throwing, and forms uniform diameter in 0.6mm, strip of the length in 2mm
Grain, it is stand-by to give over to lower step.
S5 is dry: the step S4 strip particle being prepared being entered ebullated dryer and is dried, drying time is arranged
140 DEG C of intake air temperature, 90 DEG C of air outlet temperature, 98% or more purity, moisture 2% can be obtained in 20min every batch of after to be dried
Graininess sodium butyrate finished product below.
The wherein molal weight that the butyric acid in step S1 described in the preparation method of butyric acid sodium granules is reacted with liquid alkaline
Than for 1:1, the mass percent of the butyric acid and liquid alkaline is controlled in 40wt%.
The wherein drying condition of the spray drying system in step S1 described in the preparation method of butyric acid sodium granules are as follows:
Inlet air temperature is 280 DEG C, and leaving air temp is 70 DEG C, and pressure 3mPa, the sodium butyrate crude product stops in spray drying system
The time stayed is 60s.
The wherein mixing machine equipped with high-speed cutting colter in step S2 described in the preparation method of butyric acid sodium granules
Mixing speed be 100r/min, the cutting colter revolving speed be 500r/min, mixing time 15min.
Exhaust gas treating method is as follows after a kind of sodium butyrate granule preparation of the invention:
S1 collects the tail gas that spray drying obtains, and tail gas is passed through heat exchanger, the temperature of the heat exchanger water inlet is
20 DEG C, the temperature of water outlet is 60 DEG C, and then the water in heat exchanger is recycled to feed liquid storage tank clamping sleeve from water outlet；
S2 step S1 tail gas after cooling then passes through two sections of moisture film aeration tower processing, and first stage tower is that substance withdrawl syndrome is
0.5mol/L sodium carbonate liquor is washed, and is absorbed wherein extra butyric acid residual, is back to storage tank, second level tower is washed for clear water
It washs, absorbs remaining sodium butyrate product, be back to storage tank；
S3 is exchanged heat the waste heat of S2 treated cleaning tail gas through heat exchanger, then heat is compensated by collet to storage tank,
Then remaining clean gas discharge.
Embodiment 3
Of the invention a kind of sodium butyrate process for producing granula and its exhaust gas treating method are as follows:
The preparation of S1 butyric acid sodium raw materials: carrying out neutralization reaction for n-butyric acie and Ionic Membrane and obtain sodium butyrate reaction solution, will
Described the sodium butyrate reaction solution after spray drying system is dry directly flow out to obtain from the bottom of spray drying system it is aqueous
Amount is the sodium butyrate crude product of 8wt%, collects powder material from spray drying system bottom position on the upper side via blast system, directly
Connect packed products；
S2 mixing: the sodium butyrate crude product that water content obtained in step S1 is 8wt% is mixed with water, using equipped with high speed
The mixing machine of cutting colter carries out uniformly mixed；
S3 extrusion: the step S2 material mixed is even added in banded extruder, is turned by two opposite directions in banded extruder
After the extruding of dynamic and threaded screw rod, two of material from screw front end it is bowl-shape, be respectively provided with 600 apertures as 1.2mm
The spherical surface extruder head of circular hole is forced to squeeze out, and under pressure, wet feed is extruded into uniform strip；
S4 granulation ball blast: in the strip material investment shot-blasting machine that step S3 is squeezed out, ball blast motor spindle is using depth
The fluted disc of 6mm is arranged in 150r/min, rotation time in 100s every batch of as cutting face, the setting of fluted disc velocity of rotation.Through cutting
After cutting, throwing circle, strip material is cut off, then is justified through throwing, and forms uniform diameter in 1.2mm, strip of the length in 6mm
Grain, it is stand-by to give over to lower step.
S5 is dry: the step S4 strip particle being prepared being entered ebullated dryer and is dried, drying time is arranged
140 DEG C of intake air temperature, 90 DEG C of air outlet temperature, 98% or more purity, moisture 2% can be obtained in 40min every batch of after to be dried
Graininess sodium butyrate finished product below.
The wherein molal weight that the butyric acid in step S1 described in the preparation method of butyric acid sodium granules is reacted with liquid alkaline
Than for 1.1:1, the mass percent of the butyric acid and liquid alkaline is controlled in 60wt%.
The wherein drying condition of the spray drying system in step S1 described in the preparation method of butyric acid sodium granules are as follows:
Inlet air temperature is 350 DEG C, and leaving air temp is 120 DEG C, and pressure 5mPa, the sodium butyrate crude product is in spray drying system
Residence time is 10s.
The wherein mixing machine equipped with high-speed cutting colter in step S2 described in the preparation method of butyric acid sodium granules
Mixing speed be 300r/min, the cutting colter revolving speed be 2000r/min, mixing time 10min.
Exhaust gas treating method is as follows after a kind of sodium butyrate granule preparation of the invention:
S1 collects the tail gas that spray drying obtains, and tail gas is passed through heat exchanger, the temperature of the heat exchanger water inlet is
30 DEG C, the temperature of water outlet is 80 DEG C, and then the water in heat exchanger is recycled to feed liquid storage tank clamping sleeve from water outlet；
S2 step S1 tail gas after cooling then passes through two sections of moisture film aeration tower processing, and first stage tower is that substance withdrawl syndrome is
The sodium bicarbonate solution of 2mol/L is washed, and is absorbed wherein extra butyric acid residual, is back to storage tank, second level tower is washed for clear water
It washs, absorbs remaining sodium butyrate product, be back to storage tank；
S3 is exchanged heat the waste heat of S2 treated cleaning tail gas through heat exchanger, then heat is compensated by collet to storage tank,
Then remaining clean gas discharge.
Finally it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than the present invention is protected
The limitation of range is protected, although explaining in detail referring to preferred embodiment to the present invention, those skilled in the art are answered
Work as understanding, it can be with modification or equivalent replacement of the technical solution of the present invention are made, without departing from the reality of technical solution of the present invention
Matter and range.
Claims (8)
1. a kind of sodium butyrate process for producing granula and its exhaust gas treating method, it is characterised in that: the butyric acid sodium granules
The preparation method is as follows:
The preparation of S1 butyric acid sodium raw materials: carrying out neutralization reaction for butyric acid and liquid alkaline and obtain sodium butyrate Synthesis liquid, described will obtain sodium butyrate
Synthesis liquid directly flows out to obtain water content to be 3~8wt% after spray drying system is dry from the bottom of spray drying system
Sodium butyrate crude product, from spray drying system bottom position on the upper side via blast system collect powder material, be directly packaged into
Product；
S2 mixing: the sodium butyrate crude product that water content obtained in step S1 is 3~8wt% is mixed with water, using equipped with high speed
The mixing machine of cutting colter carries out uniformly mixed；
S3 extrusion: the step S2 material mixed is even added in banded extruder, by two in banded extruder opposite rotations and
After the extruding of threaded screw rod, two of material from screw front end it is bowl-shape, be respectively provided with 600~1000 apertures as 0.6
The spherical surface extruder head of~1.2mm circular hole is forced to squeeze out, and under pressure, wet feed is extruded into uniform strip；
S4 pelletizes ball blast: in the strip material investment shot-blasting machine that step S3 is squeezed out, ball blast motor spindle using depth be 3~
The fluted disc of 6mm is arranged in 30~150r/min, rotation time in 20~100s every batch of as cutting face, the setting of fluted disc velocity of rotation
It is secondary.After being cut, throwing circle, strip material is cut off, then is justified through throwing, and forms uniform diameter in 0.6~1.2mm, length is 2
The strip particle of~6mm, it is stand-by to give over to lower step.
S5 is dry: the step S4 strip particle being prepared entered into ebullated dryer and is dried, setting drying time 20~
40min every batch of, 100~140 DEG C of intake air temperature, 70~90 DEG C of air outlet temperature, can be obtained after to be dried purity 98% with
On, the graininess sodium butyrate finished product below of moisture 2%.
2. a kind of sodium butyrate process for producing granula according to claim 1 and its exhaust gas treating method, it is characterised in that:
The molal weight ratio that butyric acid in the step S1 is reacted with liquid alkaline is 1~1.1:1, the quality hundred of the butyric acid and liquid alkaline
Divide than control in 40~60wt%.
3. a kind of sodium butyrate process for producing granula according to claim 1 and its exhaust gas treating method, it is characterised in that:
Butyric acid in the step S1 is n-butyric acie, and the liquid alkaline is Ionic Membrane.
4. a kind of sodium butyrate process for producing granula according to claim 1 and its exhaust gas treating method, it is characterised in that:
The drying condition of spray drying system in the step S1 are as follows: inlet air temperature be 280~350 DEG C, leaving air temp be 70~
120 DEG C, pressure is 3~5mPa, and sodium butyrate crude product residence time in spray drying system is 10~60s.
5. a kind of sodium butyrate process for producing granula according to claim 1 and its exhaust gas treating method, it is characterised in that:
The mixing speed of the mixing machine equipped with high-speed cutting colter in the step S2 is 100~300r/min, the cutting
Colter revolving speed is 500~2000r/min, and mixing time is 10~15min.
6. exhaust gas treating method after a kind of sodium butyrate granule preparation, it is characterised in that: after the sodium butyrate granule preparation
The processing method of tail gas is as follows:
S1 collects the obtained tail gas of spray drying, and tail gas is passed through heat exchanger, and the temperature of the heat exchanger water inlet is 20~
30 DEG C, the temperature of water outlet is 60~80 DEG C, and then the water in heat exchanger is recycled to feed liquid storage tank clamping sleeve from water outlet；
S2 step S1 tail gas after cooling then passes through two sections of moisture film aeration tower processing, and first stage tower is alkali liquid washing, is absorbed wherein
Extra butyric acid residual is back to storage tank, and second level tower is clear water washing, absorbs remaining sodium butyrate product, is back to storage tank；
S3 is exchanged heat the waste heat of S2 treated cleaning tail gas through heat exchanger, then to storage tank, then heat is compensated by collet
Remaining clean gas discharge.
7. exhaust gas treating method after a kind of sodium butyrate granule preparation according to claim 6, it is characterised in that: described
The lye in first stage tower in step S2 is the lye that concentration is 0.5~2mol/L.
8. exhaust gas treating method after a kind of sodium butyrate granule preparation according to claim 6, it is characterised in that: described
The lye in first stage tower in step S2 be one of sodium hydroxide solution, sodium carbonate liquor or sodium bicarbonate solution or
Several mixtures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910725930.6A CN110394119A (en) | 2019-08-07 | 2019-08-07 | A kind of sodium butyrate process for producing granula and its exhaust gas treating method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910725930.6A CN110394119A (en) | 2019-08-07 | 2019-08-07 | A kind of sodium butyrate process for producing granula and its exhaust gas treating method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110394119A true CN110394119A (en) | 2019-11-01 |
Family
ID=68327830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910725930.6A Withdrawn CN110394119A (en) | 2019-08-07 | 2019-08-07 | A kind of sodium butyrate process for producing granula and its exhaust gas treating method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110394119A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022199678A1 (en) * | 2021-03-25 | 2022-09-29 | 新奥（厦门）农牧发展有限公司 | Novel sodium butyrate particle and preparation method therefor |
-
2019
- 2019-08-07 CN CN201910725930.6A patent/CN110394119A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022199678A1 (en) * | 2021-03-25 | 2022-09-29 | 新奥（厦门）农牧发展有限公司 | Novel sodium butyrate particle and preparation method therefor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103803665B (en) | Disintegration controllable granular oxygen producer and manufacturing method thereof | |
| CN102987088A (en) | Acidifier for piglet feed, and preparation method thereof | |
| CN106432018A (en) | Method for environment-friendly clean production of D,L-methionine | |
| CN109134099A (en) | A kind of quick-acting high concentration sulfur fertilizers of rounded grain and production method | |
| CN106244278A (en) | The method preparing biomass fuel for primary raw material with fresh chicken manure | |
| CN110394119A (en) | A kind of sodium butyrate process for producing granula and its exhaust gas treating method | |
| CN106748925A (en) | A kind of N, N- diethylamino ethanethiol production technology | |
| CN103949215B (en) | A kind of with Chinese medicine slag be raw material antibiotic absorption activated carbon and method for making and application | |
| CN106861379A (en) | A kind of drier and preparation method thereof | |
| CN105326797A (en) | Processing process for salinomycin granular preparation | |
| CN201686637U (en) | Hexamethylenetetramine preparing device by gas phase method | |
| CN101792447A (en) | Process and device for preparing urotropine by using gas phase method | |
| US3937846A (en) | Processes for preparing nutritional compositions for animal feeds | |
| CN104987592A (en) | Hydrophobic enhanced foamed polypropylene and polymer absorbent composite material and preparation method thereof | |
| CN106244279A (en) | The method preparing biomass fuel for primary raw material with fresh cattle manure | |
| CN107903166B (en) | Preparation method of feed-grade copper citrate | |
| CN115924938A (en) | Production process of food-grade potassium carbonate and food-grade potassium bicarbonate | |
| CN114766374A (en) | Oyster shell/coffee grounds cat litter and preparation method thereof | |
| CN110637926A (en) | Preparation method of semi-dry forage, semi-dry forage and forage | |
| CN108129194A (en) | A kind of fertilizer synergist and preparation method thereof | |
| CN102845460B (en) | Phosethyl-aluminum water dispersible granules and preparation method thereof | |
| CN105128166A (en) | Dust-free manufacturing method and dust-free manufacturing device for amino-plastic moulding compound | |
| CN110679766A (en) | Pig feed and preparation method thereof | |
| CN107141127A (en) | A kind of method that application puffing technique prepares degrading slow release urea fertilizer | |
| CN208490807U (en) | Theaflavin compound product mixing and grain-making system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20191101 |
|
| WW01 | Invention patent application withdrawn after publication |