CN102276739A - Continuous production method of dual-modified starch through dry process - Google Patents
Continuous production method of dual-modified starch through dry process Download PDFInfo
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Abstract
The invention discloses a continuous production method of dual-modified starch through a dry process. The method is characterized by comprising the steps of raw material pre-treatment, first modification reaction, first continuous mixing, first drying or cooling, second modification reaction, second cooling, second continuous mixing and product post-treatment, so that the continuous reaction of continuous charging and discharging can be realized, with high reaction uniformity. By adjusting the starch adding speed of a speed adjustable metering powder feeding device, the reaction time of the starch in a reactor can be controlled, and by adjusting the hot-air and steam flow, the reaction temperature can be controlled, thus satisfying the production needs of dual-modified or single-modified starch. Characterized by simple process, less equipment investment, high product yield, low energy consumption, low production cost, less pollution, great adjustability of production capacity, stable product quality and convenient variety change, the method of the invention can realize the large scale and continuous automatic production of dual-modified or single-modified starch through a dry process, with remarkable ecological environment protection benefits and economic benefits.
Description
Technical field
The invention belongs to technical field of modified starch, relate to the two modified starch continuous production method of dry method.
Background technology
The production method of modified starch can be divided into wet method, solvent method, dry method or the like.Wet Method Reaction mild condition, safe, reaction good uniformity, product purity height are the production methods that China modified starch manufacturer generally adopts.But also there are many drawbacks in wet production, as: long reaction time, reaction conversion ratio is low, production cost is high, water loss is big, waste water saltiness height, very easily causes environmental pollution.Dry technology for production is simple, the reaction times is short, transformation efficiency is high, yield is high, energy consumption is low, production cost is low, pollution is little, meets green modified starch developing direction, is a kind of rising production method.But the present situation of China's dry method modified starch production at present is: intermittently produce, kind is single, small scale, the quality product fluctuation is big, the product promotion application surface is narrow.And solvent method is difficult to scale operation owing to production cost height, poor stability, relatively harsher to equipment requirements.
As execute the Jianping, TGBD type modified starch dry process reaction production line and production technique, " chemical science and technology market " 2004 the 8th phases.Introducing this production-line technique flow process is: the single solvent dry production that ative starch → break up, broken arch → interpolation reaction solvent, mixing → drying and dehydrating → reaction → air cooling → secondary add solvent, mixing → pulverizing → screening → finished product.The document is pointed out: processing requirement: output: 500kg/h; Temperature of reaction: 105～120 ℃; Reaction times: 2～3h; Whiteness, pH value, viscosity meet product standard.Modified starch controlling of production process:, need regulate, to obtain customer satisfaction system product to the equipment operating parameter in the production line because of material characteristic and user difference to product requirement.Note following condition: (1) regulates pneumatic dryer vapor pressure and induced draft fan aperture, and the control material advances the water ratio and the material recovery rate of reactor; (2) regulate belt reactor vapor pressure and induced draft fan aperture, control material reaction temperature and the finished product water ratio; (3) regulate the cloth bucket flashboard, bed thickness in the controlling reactor; (4) regulate feeder and reactor main transmission speed, may command output and reaction times; (5) regulate volume pump, the reagent flow that enters high-speed mixer is controlled; (6) regulate quenching system induced draft fan aperture, the control product recovery rate.
Chinese patent CN1554666A (200310112803.8) and for example, a kind of acidolysis and esterification modification composite modified starch and its production and application of carrying out simultaneously.Dried preparation has been adopted in this invention a kind of acidolysis and esterification modification composite modified starch, particularly a kind of starch stearate with food fibre function, the acidolysis of starch and esterification are at high temperature carried out simultaneously.Product had both had the character of esterification starch, had the character of acidified starch again, can be used as fat-replacer, production low fat plant butter, and the pouring of ice chess, salad dressing etc. also can be used as microcapsule wall material, substitute expensive gum arabic, Protanal Ester SD-LB etc.The advantage of this invention is the acidolysis of starch and two kinds of denaturation methods of esterification are combined, and utilizes the dry process reaction device to react, the practicality of technological design science, and environmental pollution is little, and product performance are good.It is characterized in that: adopt dry method that the preparation method that starch carries out acidolysis, esterification sex change is simultaneously made, make it have the characteristic of acidolysis and esterification modified starch simultaneously.Concrete grammar is with W-Gum, wheat starch, potato starch is a raw material, to be dissolved in the esterifying agent higher fatty acid of hot ethanol: stearic acid, lauric acid, tetradecanoic acid, the palm fibre eleostearic acid, oleic acid, linolic acid, eicosanoic acid slowly joins in the starch, constantly stir, and add a certain amount of hydrochloric acid, constantly stir, the slurry that obtains is by the sieve granulating, then at 30-50 ℃ of low temperature desolventizing, precipitation time 1-3h, water transfer part massfraction is controlled at 5～25% again, at 120～160 ℃, the reaction times is to carry out acidolysis simultaneously under the high temperature of 2～5h, esterification is prepared from.Its basic recipe is: starch (butt meter) 100g, esterifying agent 2～4g, dehydrated alcohol 80～120m, hydrochloric acid (by HCl) 10.06～0.12g and water 0～20ml.
The weak point that above-mentioned open source literature exists is that the modified starch kind that obtains is single, small scale, the quality product fluctuation is big, the product promotion application surface is narrow.
Summary of the invention
The objective of the invention is: long-term puzzlement China dry method modified starch production industry kind is single in order to solve, small scale, the quality product fluctuation is big, the product promotion application surface is narrow; and solvent method exists production cost height, poor stability, the technical bottleneck problem relatively harsher to equipment requirements; move towards diversification of varieties, mass-producing, serialization industrial production for the modified starch dry production, provide practicable dry method two modified starch continuous production method.
The present invention is achieved in that
The two modified starch continuous production method of dry method is characterized in that: comprise after raw materials pretreatment, a reaction of degeneration, one-time continuous mixing, primary drying or once cooling, secondary reaction of degeneration, secondary cooling, secondary mix continuously obtaining two modified starch products;
A described reaction of degeneration is to send into continuously in the reactor of preset temperature after the material through raw materials pretreatment is added powder by the speed governing metering, finish reaction of degeneration for the first time, and subsequent processing is delivered in discharging continuously;
Described secondary reaction of degeneration is to be conveyed into continuously in the reactor of preset temperature by speed governing metering apparatus for feeding starch through the standby material behind the starch drying after the sex change or cooling and the air-flow gravity classification, to finish reaction of degeneration for the second time.
The two modified starch continuous production processes steps of dry method are as follows:
(1) raw materials pretreatment: comprise medicine liquefaction atomizing and mixing of materials, the medicine that will liquefy atomizing evenly sprays in powdery medicine and the raw starch and carries out thorough mixing, and the gained homogeneous material is standby;
(2) reaction of degeneration: send into continuously in the reaction of degeneration device of preset temperature after standby material added powder by A speed governing metering, finish reaction of degeneration for the first time, and subsequent processing is delivered in discharging continuously;
(3) one-time continuous is mixed: with the required solid-state medicine liquefaction of secondary sex change, the atomizing of liquefaction medicine evenly adds in the one-time continuous mixing tank carries out on-line mixing, and the gained homogeneous material is delivered to subsequent processing continuously;
(4) primary drying or once cooling: comprise drying or cooling and air-flow gravity classification, it is standby that the homogeneous material that a last operation is carried continuously carries out hot-air dry or air cooling and air-flow gravity classification;
(5) secondary reaction of degeneration: will go up and be conveyed into continuously in the secondary reaction of degeneration device of preset temperature after the standby material of an operation adds powder by B speed governing metering, and finish reaction of degeneration for the second time, and subsequent processing be delivered in discharging continuously;
(6) secondary cooling: comprise cooling and air-flow gravity classification, the homogeneous material that a last operation is carried continuously carries out air cooling, air-flow gravity classification, and subsequent processing is delivered in discharging continuously;
(7) secondary mixes continuously: the solid-state medicine liquefaction that will handle, liquefaction atomizing medicine evenly add carries out on-line mixing in the secondary continuous mixing device, the gained homogeneous material is delivered to subsequent processing continuously;
(8) product aftertreatment: will go up homogeneous material screening, weighing, packing that an operation is carried continuously, and obtain two modified starch products.
Described pharmaceutical chemicals comprises denaturing agent, catalyzer, additive and conditioning agent.
The two modified starch continuous production method of described dry method, utilize raw materials pretreatment, a reaction of degeneration, one-time continuous mix, once cooling and product aftertreatment technological process, or utilize raw materials pretreatment, secondary reaction of degeneration, secondary cooling, secondary mixes continuously and the technological process of product aftertreatment, does not need the continuous production of pre-dried single modified starch.
The two modified starch continuous production method of described dry method, utilize raw materials pretreatment, do predrying, secondary reaction of degeneration, secondary cooling at reaction of degeneration equipment, secondary mixes continuously and the product aftertreatment technological process, or utilize raw materials pretreatment, primary drying, secondary reaction of degeneration, secondary cooling, secondary mixes continuously and the technological process of product aftertreatment, needs the continuous production of pre-dried single modified starch.
The two modified starch continuous production method concrete operations of dry method are:
The A soup sprays in the starch or starch and powdery pharmaceutical chemicals of continuous measurement charging continuously by the A atomisation unit, starch and pharmaceutical chemicals carry out thorough mixing and obtain pretreated starch, by A speed governing metering apparatus for feeding starch pretreated starch is added to continuously in the reaction of degeneration device of pre-intensification to advance continuously, a reaction of degeneration of discharging, add the reaction times of powder speed control starch in reaction of degeneration device by what regulate A speed governing metering apparatus for feeding starch, by regulating the flow control temperature of reaction of warm air and steam, to satisfy the needs of a modified starch producing the different technologies index; A modified starch that reaches after reaction requires is transported to the one-time continuous mixing tank continuously by the A level, PH conditioning agent B medicine and secondary sex change C medicine atomize to spray into continuously respectively and carry out continuous on-line mixing in the starch, continuously the starch of discharging through hot-air dry or air cooling with measure the secondary reaction of degeneration device that apparatus for feeding starch is transported to pre-intensification continuously by the B speed governing after the A level is separated and advance continuously, the secondary reaction of degeneration of discharging, add the reaction times of powder speed control starch in secondary reaction of degeneration device by regulating B speed governing metering apparatus for feeding starch, the temperature of the flow control secondary reaction of degeneration by regulating warm air and steam is to satisfy the needs of the secondary modified starch of producing the different technologies index; The two modified starches that reach after reaction requires separate through air cooling, B level, obtain the secondary modified starch; The secondary modified starch is transported to the secondary continuous mixing device continuously by the C level, and D medicine atomizing sprayed into continuously, starch is carried out continuous online neutralization or humidification, make pH value, the water content of starch reach the requirement of finished product starch, discharging continuously, through screening, weighing, packing, obtain the two modified starch products of dry method.
The equipment that the two modified starch continuous production of dry method adopt comprises: chemical liquid groove, atomisation unit, mixing machine, storage powder groove, speed governing metering apparatus for feeding starch, reactor, well heater, worm conveyor, continuous mixing device, loudspeaker, classifier, induced draft fan, collection powder groove, vibratory screening apparatus, weigher and wrapping machine.
Substantive distinguishing features that the present invention gives prominence to and obvious improvement:
(1) production technique is simple, and facility investment is few, the transformation efficiency height, and the yield height, energy consumption is low, and production cost is low, pollutes for a short time, and the throughput adjustability is big, constant product quality, variety renovation is convenient, can realize the large-scale continuous production of dry method modified starch.
(2) realize continuous and automatic fully from the whole process of production that is dosed into out product, production technology scheme suitability is strong, not only can satisfy the production needs of two modified starches, can also satisfy the production needs of single modified starch, as producing multiple single or two modified starches such as dextrin, cationic starch, phosphate ester starch, carboxymethyl starch, cationization-Phosphation, acidifying-cationization, acidifying-Phosphation.
(3) starch is realized the successive reaction of continuous charging and discharging in reactor, reaction homogeneity height, can add the reaction times of powder speed control starch in reactor by regulating speed governing metering apparatus for feeding starch, can also be by regulating the flow control temperature of reaction of warm air and hot steam, to satisfy the needs of the serial modified starch of producing same kind different technologies index.
(4) starch and pharmaceutical chemicals or water are realized continuous on-line mixing, good uniformity in continuous mixing device.
(5) technical solution of the present invention practices, can effectively improve modified starch production efficiency, reduce production costs, improve the quality of products, diversify, increase economic efficiency, the conserve water resource, reduce environmental pollution, have significant ecological, environmental protective benefit.
Description of drawings
Fig. 1 is multiple dry method modified starch continuous production processes schematic flow sheet.
The two modified starch continuous production method of dry method comprise that raw materials pretreatment, a reaction of degeneration, one-time continuous mixing, primary drying or once cooling, secondary reaction of degeneration, secondary cooling, secondary obtain pair modified starch products after mixing continuously.
Embodiment
Below by embodiment technical scheme of the present invention is further described in detail, but not as limitation of the present invention.
Embodiment 1: the two modified starch continuous production method of cationization-Phosphation dry method
With 100 weight part tapioca (flour)s and 1.5 weight part powdery sodium silicates continuous measurement adding simultaneously mixing machine, 6 weight part concentration are that 69% 3-chloro-2-hydroxypropyl-trimethyl ammonium chloride and 2.8 weight part concentration are to spray into mixing machine continuously by the A atomisation unit behind 30% the sodium hydroxide thorough mixing, starch and pharmaceutical chemicals carry out thorough mixing and obtain pretreated starch, by A speed governing metering apparatus for feeding starch pretreated starch is added to the reaction of degeneration device continuously one time, starch is realized advancing continuously in a reaction of degeneration device, the successive reaction of discharging, temperature of reaction is 50～100 ℃, add the reaction times of powder speed control starch in reaction of degeneration device by what regulate A speed governing metering apparatus for feeding starch, by regulating the flow control temperature of reaction of warm air and steam, to satisfy the needs of the cationic starch of producing the different technologies index, the cationic starch that reaches after reaction requires is transported to the one-time continuous mixing tank continuously by the A level, citric acid solution sprays into the one-time continuous mixing tank continuously by the B atomisation unit starch is carried out continuous on-line mixing neutralization, make starch PH=7.0～8.0, concentration is that 25% sodium tripolyphosphate solution sprays into continuously with starch by the C atomisation unit and carries out continuous on-line mixing, starch and sodium tripolyphosphate solution weight ratio are 100: 8, continuously the starch of discharging through hot-air dry with measure apparatus for feeding starch by the B speed governing after the A level is separated and be added to secondary reaction of degeneration device continuously and carry out temperature reaction, 100～180 ℃ of temperature of reaction, add the powder speed control starch secondary reaction of degeneration time by regulating B speed governing metering apparatus for feeding starch, by regulating the flow control temperature of reaction of warm air and steam, to satisfy the needs of the two modified starches of cationization-Phosphation of producing the different technologies index; Reaching starch after reaction requires separates with the B level through air cooling and obtains cationization-Phosphation pair modified starches, starch is transported to the secondary continuous mixing device continuously by the C level, clear water sprays into the secondary continuous mixing device continuously by the D atomisation unit starch is carried out continuous online humidification, make starch contain moisture 12～14%, starch through screening, weighing, packing, obtains the two modified starch products of cationization-Phosphation dry method in continuously feeding of secondary continuous mixing device and discharging continuously.
Embodiment 2: the two modified starch continuous production method of acidifying-Phosphation dry method
Concentration is that 17.5% sulphuric acid soln is sprayed onto in 100 portions of tapioca (flour)s of continuous measurement charging continuously by the A atomisation unit, the weight ratio of starch and sulphuric acid soln is 100: 2.5, starch and sulfuric acid thorough mixing obtain pretreated starch, by A speed governing metering apparatus for feeding starch pretreated starch is transported to the reaction of degeneration device continuously one time, starch is realized advancing continuously in a reaction of degeneration device, the successive reaction of discharging, temperature of reaction is 85～90 ℃, add the reaction times of powder speed control starch in reaction of degeneration device by what regulate A speed governing metering apparatus for feeding starch, by regulating the flow control temperature of reaction of warm air and steam, to satisfy the needs of the acidifying starch of producing the different technologies index; The acidifying starch of a reaction of degeneration device is transported to the one-time continuous mixing tank continuously by the A level, sodium carbonate solution sprays into the one-time continuous mixing tank continuously by the B atomisation unit starch is carried out continuous online neutralization, make starch PH=5.0～6.0, weight ratio is 1: 1, concentration is that the mixing solutions of 45% Sodium phosphate dibasic and SODIUM PHOSPHATE, MONOBASIC sprays into continuously with starch by the C atomisation unit and carries out continuous on-line mixing, starch and mixing solutions weight ratio are 100: 5, starch is realized continuously feeding and discharging continuously at the one-time continuous mixing tank, starch through hot-air dry be added to secondary reaction of degeneration device continuously by B speed governing metering apparatus for feeding starch after the A level is separated and carry out temperature reaction, 130～135 ℃ of temperature of reaction, add the powder speed control starch secondary reaction of degeneration time by regulating B speed governing metering apparatus for feeding starch, by regulating the flow control temperature of reaction of warm air and Boiler Steam, to satisfy the needs of the two modified starches of acidifying-Phosphation of producing the different technologies index; Reaching starch after reaction requires separates with the B level through air cooling and obtains acidifying-Phosphation pair modified starches; Starch is transported to the secondary continuous mixing device continuously by the C level, clear water sprays into the secondary continuous mixing device continuously by the D atomisation unit starch is carried out continuous online humidification, make starch contain moisture 12～14%, starch is in continuously feeding of secondary continuous mixing device and discharging continuously, through screening, weighing, packing obtains the two modified starch products of acidifying-Phosphation dry method.
Embodiment 3: the two modified starch continuous production method of acidifying-cationization dry method
Concentration is that 20% sulphuric acid soln is sprayed onto in the tapioca (flour) of continuous measurement charging continuously by the A atomisation unit, the weight ratio of starch and sulphuric acid soln is 100: 3.5, starch and sulfuric acid thorough mixing obtain pretreated starch, by A speed governing metering apparatus for feeding starch pretreated starch is transported to the reaction of degeneration device continuously one time, starch is realized advancing continuously in a reaction of degeneration device, the successive reaction of discharging, temperature of reaction is 85～90 ℃, add the reaction times of powder speed control starch in reaction of degeneration device by what regulate A speed governing metering apparatus for feeding starch, by regulating the flow control temperature of reaction of warm air and steam, to satisfy the needs of the acidifying starch of producing the different technologies index; The acidifying starch of a reaction of degeneration device is transported to the one-time continuous mixing tank continuously by the A level, aqua calcis sprays into the one-time continuous mixing tank continuously by the B atomisation unit starch is carried out continuous online neutralization, make starch PH=8.5～9.0,5 weight part concentration are that 69% 3-chloro-2-hydroxypropyl-trimethyl ammonium chloride and 2.8 weight part concentration are that the mixing solutions of 30% sodium hydroxide sprays into continuously with starch by the C atomisation unit and carries out continuous on-line mixing, starch is realized continuously feeding and discharging continuously at the one-time continuous mixing tank, starch through hot-air dry be added to secondary reaction of degeneration device continuously by B speed governing metering apparatus for feeding starch after the A level is separated and carry out temperature reaction, 85～95 ℃ of temperature of reaction, add the powder speed control starch secondary reaction of degeneration time by regulating B speed governing metering apparatus for feeding starch, by regulating the flow control temperature of reaction of warm air and steam, to satisfy the needs of the two modified starches of acidifying-cationization of producing the different technologies index; Reaching starch after reaction requires separates with the B level through air cooling and obtains acidifying-cationization pair modified starches; Starch is transported to the secondary continuous mixing device continuously by the C level, citric acid solution sprays into the secondary continuous mixing device continuously by the D atomisation unit starch is carried out continuous online neutralization, humidification, make starch PH=6.5～7.5, moisture 12～14.5%, starch is in continuously feeding of secondary continuous mixing device and discharging continuously, through screening, weighing, packing, obtain the two modified starch products of acidifying-cationization dry method.
Embodiment 4: cationic starch dry method continuous production method
With 100 weight part tapioca (flour)s and 1.2 weight part powdery calcium oxide continuous measurement adding simultaneously mixing machine, 5.8 weight part concentration is 69% 3-chloro-2-hydroxypropyl-trimethyl ammonium chloride and 2.7 weight part concentration is to spray into mixing machine continuously by the A atomisation unit behind 30% the sodium hydroxide thorough mixing, starch and pharmaceutical chemicals carry out thorough mixing and obtain pretreated starch, part starch is added to the reaction of degeneration device one time continuously by A speed governing metering apparatus for feeding starch, another part starch is added to secondary reaction of degeneration device continuously by B speed governing metering apparatus for feeding starch, starch is realized advancing continuously in the reaction of degeneration device, the successive reaction of discharging, temperature of reaction is 50～100 ℃, add the reaction times of powder speed control starch in the reaction of degeneration device by what regulate speed governing metering apparatus for feeding starch, by regulating the flow control temperature of reaction of warm air and steam, to satisfy the needs of the cationic starch of producing the different technologies index; The starch of a reaction of degeneration device reaches reaction and requires the back to be transported to the one-time continuous mixing tank continuously by the A level, citric acid solution sprays into the one-time continuous mixing tank continuously by the B atomisation unit starch is carried out continuous online neutralization, humidification, make starch PH=6.5～7.5, moisture 12～14.5%, starch is realized continuous charging and discharging at the one-time continuous mixing tank, starch separates with the A level through air cooling, through screening, weighing, packing, obtain cationic starch products again; The starch of secondary reaction of degeneration device reaches reaction and requires after air cooling separates with the B level, and be transported to the secondary continuous mixing device continuously by the C level, citric acid solution sprays into the secondary continuous mixing device continuously by the D atomisation unit starch is carried out continuous online neutralization, humidification, make starch PH=6.5～7.5, moisture 12～14.5%, starch is in secondary continuous mixing device continuous charging and discharging, through screening, weighing, packing, obtain cationic starch products.
Embodiment 5: phosphate ester starch dry method continuous production method
Concentration is that 25% sodium tripolyphosphate solution is sprayed onto in the tapioca (flour) of continuous measurement charging continuously by the A atomisation unit, starch and sodium tripolyphosphate solution weight ratio are 100: 8, and starch and tripoly phosphate sodium STPP obtain thorough mixing and obtain pretreated starch in mixing machine; Part pretreated starch is transported to reaction of degeneration device continuously by A speed governing metering apparatus for feeding starch, and to utilize warm air to carry out predrying, and moisture reaches 8～10%, carries, is added to secondary reaction of degeneration device continuously by B speed governing metering apparatus for feeding starch through the A level; Another part pretreated starch is transported to primary drying workshop section through the B level, and to utilize warm air to carry out predrying, and moisture reaches 8～10%, separates, is added to secondary reaction of degeneration device continuously by B speed governing metering apparatus for feeding starch through the A level; Predrying starch is secondary reaction of degeneration device heat temperature raising to 140～150 ℃, starch is realized the successive reaction of continuous charging and discharging in secondary reaction of degeneration device, by regulating the reaction times that adds powder speed control starch of B speed governing metering apparatus for feeding starch, by regulating the flow control temperature of reaction of warm air and steam, to satisfy the needs of the phosphate ester starch of producing the different technologies index; The starch that reaches the reaction requirement separates with the B level through air cooling, be transported to the secondary continuous mixing device continuously by the C level, clear water sprays into the secondary continuous mixing device continuously by the D atomisation unit starch is carried out continuous online humidification, make starch contain moisture 12～14%, starch is in continuously feeding of secondary continuous mixing device and discharging continuously, through screening, weighing, packing, obtain the phosphate ester starch product.
Claims (5)
1. the two modified starch continuous production method of dry method is characterized in that: comprise after raw materials pretreatment, a reaction of degeneration, one-time continuous mixing, primary drying or once cooling, secondary reaction of degeneration, secondary cooling, secondary mix continuously obtaining two modified starch products;
A described reaction of degeneration is that the material through raw materials pretreatment is sent into preset temperature continuously by speed governing metering apparatus for feeding starch
Reactor in, finish reaction of degeneration for the first time, and subsequent processing is delivered in discharging continuously;
Described secondary reaction of degeneration is meant through the starch after the sex change and the required medicine of secondary sex change carries out on-line mixing after hot-air dry and air-flow gravity classification, be conveyed into continuously in the reactor of preset temperature by speed governing metering apparatus for feeding starch again, finish reaction of degeneration for the second time.
2. the two modified starch continuous production method of dry method according to claim 1, it is characterized in that: concrete processing step is as follows:
(1) raw materials pretreatment: comprise medicine liquefaction atomizing and mixing of materials, the medicine that will liquefy atomizing evenly sprays in powdery medicine and the raw starch and carries out thorough mixing, and the gained homogeneous material is standby;
(2) reaction of degeneration: send into continuously in the reaction of degeneration device of preset temperature after standby material added powder by A speed governing metering, finish reaction of degeneration for the first time, and subsequent processing is delivered in discharging continuously;
(3) one-time continuous is mixed: with the required solid-state medicine liquefaction of secondary sex change, the atomizing of liquefaction medicine evenly adds in the one-time continuous mixing tank carries out on-line mixing, and the gained homogeneous material is delivered to subsequent processing continuously;
(4) primary drying or once cooling: comprise drying or cooling and air-flow gravity classification, it is standby that the homogeneous material that a last operation is carried continuously carries out hot-air dry or air cooling and air-flow gravity classification;
(5) secondary reaction of degeneration: will go up and be conveyed into continuously in the secondary reaction of degeneration device of preset temperature after the standby material of an operation adds powder by B speed governing metering, and finish reaction of degeneration for the second time, and subsequent processing be delivered in discharging continuously;
(6) secondary cooling: comprise cooling and air-flow gravity classification, the homogeneous material that a last operation is carried continuously carries out air cooling, air-flow gravity classification, and subsequent processing is delivered in discharging continuously;
(7) secondary mixes continuously: the solid-state medicine liquefaction that will handle, liquefaction atomizing medicine evenly add carries out on-line mixing in the secondary continuous mixing device, the gained homogeneous material is delivered to subsequent processing continuously;
(8) product aftertreatment: will go up homogeneous material screening, weighing, packing that an operation is carried continuously, and obtain two modified starch products.
3. the two modified starch continuous production method of dry method according to claim 2, it is characterized in that: described pharmaceutical chemicals comprises denaturing agent, catalyzer, additive and conditioning agent.
4. the two modified starch continuous production method of dry method according to claim 1 and 2, it is characterized in that: utilize raw materials pretreatment, a reaction of degeneration, one-time continuous mix, once cooling and product aftertreatment technological process, or utilize raw materials pretreatment, secondary reaction of degeneration, secondary cooling, secondary mixes continuously and the technological process of product aftertreatment, does not need the continuous production of pre-dried single modified starch.
5. the two modified starch continuous production method of dry method according to claim 1 and 2, it is characterized in that: utilize raw materials pretreatment, a reaction of degeneration as predrying, secondary reaction of degeneration, secondary cooling, secondary mixes continuously and the product aftertreatment technological process, or utilize raw materials pretreatment, primary drying, secondary reaction of degeneration, secondary cooling, secondary mixes continuously and the technological process of product aftertreatment, needs the continuous production of pre-dried single modified starch.
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| CN103897068A (en) * | 2014-04-02 | 2014-07-02 | 枣庄超越玉米淀粉有限公司 | Efficient energy-saving production method of modified starch |
| CN107649385A (en) * | 2017-09-27 | 2018-02-02 | 山东神州翔宇科技集团有限公司 | A kind of starch continuous production processing unit (plant) |
| CN109053909A (en) * | 2018-06-22 | 2018-12-21 | 山东神州翔宇科技集团有限公司 | A kind of dry-method double-modified starch continuous production device |
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| CN102276739B (en) | 2013-05-08 |
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