CN1409982A - Production method of granular feed using straw to purify paper making black liquor, equipment and its product - Google Patents
Production method of granular feed using straw to purify paper making black liquor, equipment and its product Download PDFInfo
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- CN1409982A CN1409982A CN02153907A CN02153907A CN1409982A CN 1409982 A CN1409982 A CN 1409982A CN 02153907 A CN02153907 A CN 02153907A CN 02153907 A CN02153907 A CN 02153907A CN 1409982 A CN1409982 A CN 1409982A
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Abstract
A process for cleaning the black liquor generated in papermaking by the imine method and preparing granular feed includes such steps as dispersing the powdered straw and stalk in the said black liquor to adsorb most part of organic substances and ash, simple treatment to the processed black liquor for discharging, biologically treating the powdered straw and stalk, puffing (or squeezing), and granulating to obtain high-quality feed. Its apparatus and product are also disclosed.
Description
(1) technical field:
The present invention relates to manufacture method, equipment of a kind of feed and products thereof, particularly a kind of stalk purifies black liquid and makes the manufacture method of pellet, equipment and products thereof.
(2) background technology:
Black liquid is the primary pollution source of paper industry, and it accounts for more than 80% of gross contamination load, therefore solves the key that the black liquor problem is the paper mill environmental improvement.Ammonium Sulfite Method black liquid (hereinafter to be referred as black liquor) therefore can not adopt the chemical recovery as alkali paper-making black liquor because ammonium sulfite at high temperature easily is decomposed.In addition, though black liquor can be used for agricultural irrigation, fertilising, but because the periodicity of continuity that the paper mill produces and agricultural planting is asynchronous, in the season that need not irrigate, apply fertilizer, the storage problem of a large amount of black liquor can't solve always, not only waste precious resources, and caused the severe contamination of water body, soil and atmosphere.
(3) summary of the invention:
The objective of the invention is to design a kind of stalk purification black liquid and make the manufacture method of pellet, equipment and products thereof, it is to utilize the characteristics that have very strong adsorption capacity through the powder of straw of processing, it is dispersed in removes to dispel most of organic matter, the ash impurity that grades in the black liquid, the black liquor after the processing can reach discharge standard through simple improvement again; Stalk adsorbed organic matter, nitrogen, phosphorus, potassium etc. are to make the required main nutrient composition of feed simultaneously, through biological treatment, expanded or extruder grain, can be made into high-quality cattle and sheep pellet.
Technical scheme of the present invention: a kind of stalk purifies the manufacture method that black liquid is made pellet, it is characterized in that it is to be made of following steps:
1. the stalk material is removed out of use impurity and putrid and deteriorated composition, pulverizes with stalk crasher, sieves and gets length greater than 1mm, less than the powder of 3mm;
2. powder of straw particle and black liquor are by weight (1-15): (99-85) mix, stir 2-15 minute, leave standstill after 2-15 minute and leach black liquor, can repeat 2-10 time; Again this filtrate and dry straw are pulverized material by weight (99-85): (1-15) proceed to stir 2-15 minute, leave standstill filter operation after 2-15 minute; The wet powder of straw particle in filter back is removed raffinate between fiber with separator, and this raffinate is sneaked in the untreated black liquor.Adopt said method reprocessing 4-15 time;
3. remove the powder of straw particle of raffinate, common stalk and bio-fermentation agent with weight ratio (0.4-0.6) * 10
6: (0.6-0.4) * 10
6: ratio (1-10) is mixed, and carries out 30-80 days biological treatment under normal temperature, sealing state;
4. will be 3. a product and energy ingredient, additive, trace element (80-50) by weight: (15-30): (4-15): (1-5) be mixed, make compound;
5. 4. a compound is made the cattle and sheep pellet by feed forming machine, drying device.
Above-mentioned said stalk material package is drawn together straw, Wheat Straw, oat straw, beanstalk, corn stalk, millet straw, potato rattan, peanut stems class straw.
Above-mentioned said Ammonium Sulfite Method black liquid is the waste liquid of cooking of pulp in the neutral ammonium sulfite paper technology.
Above-mentioned said bio-fermentation agent can adopt the stalk feed fermentation agent that desiccates.
Above-mentioned said feed forming machine can be bulking machine or comminutor.
Above-mentioned said bulking machine can be single screw extruding puffing machine or twin-screw extruding puffing machine.
Above-mentioned said comminutor can be ring die pelleter or flat-die granulator.
The leading indicator of above-mentioned products obtained therefrom: moisture＜6-14%, crude protein＞16-22%, calcium＞0.8-1.5%; Handle back black liquor: solid content＜0.2-1.8%, ash content＜0.2-0.8%.
Operation principle of the present invention is: the powder of straw particle sneaks into that black liquor adsorbs repeatedly, filter operation, and most of organic matter and ash content are dispeled in black liquor; The powder of straw particle of filtering black liquor and common stalk mix; add bio-fermentation agent under normal temperature, the air-proof condition after biological treatment; be mixed with energy ingredient, additive and trace element in proportion, promptly produce the cattle and sheep pellet by bulking machine (or comminutor).
Superiority of the present invention is: 1, the Ammonium Sulfite Method black liquid utilizes powder of straw particle suction type, can dispel the impurity such as organic matter, ash content and part nitrogen, phosphorus, potassium of 80% above contaminated environment, significantly reduce the burden of follow-up improvement operation, and treatment process is simple, small investment, and favorable economic benefit is arranged; 2, adsorbed organic matter, nitrogen, phosphorus, potassium etc. substitute biological treatment required energy ingredient and protein in the time of can utilizing powder of straw to purify black liquor; 3, biological treatment is effectively decomposed the cellulose in the stalk, generates amino acid, aliphatic acid, protease, monose etc., improves the digestibility and the nutritive value of feed; 4, when utilizing stalk to purify black liquor production feed, its production process no longer produces secondary pollution, belongs to the environment-friendly type industry.
(4) specific embodiment:
Embodiment 1:
A kind of stalk purifies the manufacture method that black liquid is made pellet, it is characterized in that it is to be made of following steps:
1. remove the air-dry straw of impurity and putrid and deteriorated composition, pulverize, sieve respectively, remove excessive too small broken grass with aperture 3mm and 1mm screen cloth through beater disintegrating machine;
2. 50kg straw powder is sneaked in the 1000kg black liquor, all soaks into the back:
(1) stirs 2 minutes, left standstill 5 minutes, stirred again 2 minutes, remove straw powder in (1) mixture, obtain filtrate with flame filter press;
(2) the filtrate 1000kg in (1) is added 50kg dry rice straw powder, proceed to stir, leave standstill, stirring, filter operation; (2) operation is repeated 5 times, can dispel organic matter more than 80% and ash content in the black liquor;
(3) remove the raffinate that filters in the straw powder of back with tripod pendulum type batch centrifugal, and raffinate is put into untreated black liquor continue to purify;
3. remove the straw powder of raffinate, untreated straw powder and bio-fermentation agent by weight 0.5 * 10
6: 0.5 * 10
6: 3 mix, and carry out 45 days biological processing under normal temperature, air-proof condition;
4. Sheng Wuchuli powder of straw 800kg, corn flour 110kg, urea 40kg, salt 10kg, egg-shell meal 40kg mix;
5. with single screw extruding puffing machine said mixture is extruded into graininess; Re-use reverse-flow cool dryers cooling, dry above-mentioned products therefrom, obtain the 950kg pellet.
The leading indicator of above-mentioned products obtained therefrom: moisture＜12%, crude protein＞20%, calcium＞1.4%;
Handle the back black liquor: solid content＜1.2%, ash content＜0.2%.
Embodiment 2:
1. 2. item is operated with embodiment 1;
3. remove the straw powder of raffinate, untreated wheat straw powder and bio-fermentation agent by weight 0.6 * 10
6: 0.4 * 10
6: 4 mix, and carry out 50 days biological processing under normal temperature, the air-proof condition;
4. the powder of straw of carrying out a biological disposal upon 800kg, sorghum flour 110kg, urea 40kg, salt 10kg, oyster shell whiting 40kg mix;
5. with ring die pelleter said mixture is made graininess; Adopt cartridge type hot-air drier drying with products therefrom again, obtain the 960kg pellet.
Above-mentioned products obtained therefrom leading indicator: moisture＜10%, crude protein＞20%, calcium＞1.3%;
Handle the back black liquor: solid content＜1.3%, ash content＜0.23%.
Claims (8)
1, a kind of stalk purifies the manufacture method that black liquid is made pellet, it is characterized in that it is to be made of following steps:
1. the stalk material is removed out of use impurity and putrid and deteriorated composition, pulverizes with stalk crasher, sieves and gets length greater than 1mm, less than the powder of 3mm;
2. powder of straw particle and black liquor are by weight (1-15): (99-85) mix, stir 2-15 minute, leave standstill after 2-15 minute and leach black liquor, can repeat 2-10 time; Again this filtrate and dry straw are pulverized material by weight (99-85): (1-15) proceed to stir 2-15 minute, leave standstill filter operation after 2-15 minute; The wet powder of straw particle in filter back is removed raffinate between fiber with separator, and this raffinate is sneaked in the untreated black liquor.Adopt said method reprocessing 4-15 time;
3. remove the powder of straw particle of raffinate, common stalk and bio-fermentation agent with weight ratio (0.4-0.6) * 10
6: (0.6-0.4) * 10
6: ratio (1-10) is mixed, and carries out 30-80 days biological treatment under normal temperature, sealing state;
4. will be 3. a product and energy ingredient, additive, trace element (80-50) by weight: (15-30): (4-15): (1-5) be mixed, make compound;
5. 4. a compound is made the cattle and sheep pellet by feed forming machine, drying device.
2, a kind of stalk according to claim 1 purifies the manufacture method that black liquid is made pellet, and its feature is drawn together straw, Wheat Straw, oat straw, beanstalk, corn stalk, millet straw, potato rattan, peanut stems class straw in above-mentioned said stalk material package.
3, a kind of stalk according to claim 1 purifies the manufacture method that black liquid is made pellet, the waste liquid that its feature is a cooking of pulp in the neutral ammonium sulfite paper technology at above-mentioned said above-mentioned said Ammonium Sulfite Method black liquid.
4, a kind of stalk according to claim 1 purifies the manufacture method that black liquid is made pellet, and its feature can adopt the stalk feed fermentation agent that desiccates at above-mentioned said bio-fermentation agent.
5, a kind of stalk according to claim 1 purifies black liquid and makes the equipment that uses in the manufacture method of pellet, and its feature can be bulking machine or comminutor at above-mentioned said feed forming machine.
6, a kind of stalk according to claim 5 purifies black liquid and makes the equipment that uses in the manufacture method of pellet, and its feature can be single screw extruding puffing machine or twin-screw extruding puffing machine at above-mentioned said bulking machine.
7, a kind of stalk according to claim 5 purifies black liquid and makes the equipment that uses in the manufacture method of pellet, and its feature can be ring die pelleter or flat-die granulator at above-mentioned said comminutor.
8, a kind of a kind of stalk according to claim 1 purifies the product that black liquid is made the manufacture method gained of pellet, and its feature in the leading indicator of product is: moisture＜6-14%, crude protein＞16-22%, calcium＞0.8-1.5%; Handle back black liquor: solid content＜0.2-1.8%, ash content＜0.2-0.8%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02153907A CN1409982A (en) | 2002-12-05 | 2002-12-05 | Production method of granular feed using straw to purify paper making black liquor, equipment and its product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02153907A CN1409982A (en) | 2002-12-05 | 2002-12-05 | Production method of granular feed using straw to purify paper making black liquor, equipment and its product |
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| Publication Number | Publication Date |
|---|---|
| CN1409982A true CN1409982A (en) | 2003-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN02153907A Pending CN1409982A (en) | 2002-12-05 | 2002-12-05 | Production method of granular feed using straw to purify paper making black liquor, equipment and its product |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112515222A (en) * | 2021-01-21 | 2021-03-19 | 山东泉水环保科技有限公司 | Method for pulp and feed co-production by taking plant fibers as raw materials |
| CN112680992A (en) * | 2021-01-21 | 2021-04-20 | 山东泉水环保科技有限公司 | Clean production process for pulp and feeding co-production |
-
2002
- 2002-12-05 CN CN02153907A patent/CN1409982A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112515222A (en) * | 2021-01-21 | 2021-03-19 | 山东泉水环保科技有限公司 | Method for pulp and feed co-production by taking plant fibers as raw materials |
| CN112680992A (en) * | 2021-01-21 | 2021-04-20 | 山东泉水环保科技有限公司 | Clean production process for pulp and feeding co-production |
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