CN106904611B - A kind of preparation method of walnut shell activated carbon - Google Patents
A kind of preparation method of walnut shell activated carbon Download PDFInfo
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- CN106904611B CN106904611B CN201710166258.2A CN201710166258A CN106904611B CN 106904611 B CN106904611 B CN 106904611B CN 201710166258 A CN201710166258 A CN 201710166258A CN 106904611 B CN106904611 B CN 106904611B
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Abstract
The invention discloses a kind of preparation method of walnut shell activated carbon, this method includes the following steps：First, primary election shell thickness is more than the walnut shell of 0.2mm；2nd, it cleans：Remove the impurity in walnut shell；3rd, classification processing screens out impurity, dirt and the ironware in walnut shell；4th, raw material is placed on raw material storage tanks storage；5th, it is carbonized and activates material；6th, secondary removal of impurities；7th, packing is crushed, obtains walnut shell active carbon finished products.The present invention is using walnut shell as raw material, the activated carbon hole that is prepared is flourishing, absorption property is good, intensity is high, easy regeneration, economy and durability the features such as, walnut shell activated carbon product is mainly used in purification, decoloration, dechlorination, the deodorization of drinking water, pure water, alcoholic, beverage and trade effluent；Removal of mercaptans of oil refining industry etc. is can also be used for, and without harmful ingredient and without side effects such as chemical residuals, has a vast market prospect and good economic and social benefits.
Description
Technical field
The present invention relates to activated carbon preparing technical fields, are related to a kind of preparation method of walnut shell activated carbon.
Background technology
Activated carbon is widely used in the various aspects of China's industrial and agricultural production and daily life, as the alkali-free of petrochemical industry takes off
Smelly (refining desulfurization alcohol), ethylene desalted water (refining filler), catalyst carrier (palladium, platinum, rhodium etc.), Water warfare and sewage disposal；
The power plant's water treatment and protection of power industry；The chemical catalyst and carrier of chemical industry, gas purification, solvent recovery and oil
Fat etc. decolourizes, refines；Refined, the decoloration of the beverage of food service industry, drinks, sodium glutamate mother liquid and food；The gold of gold industry
Extraction, tail washings recycling；The sewage disposal of environmental protection industry (epi), the improvement of exhaust gas and pernicious gas, gas purification；And relevant industries
Cigaratte filter, timber floor are moisture-proof, inhale taste, automobile gasoline evaporative emission control, the preparation of various impregnating agent liquid etc..Activated carbon is not
Fabulous development prospect and wide selling market will be had.For activated carbon industry, maximum cost is raw material, most
Big success or failure are performance quality, and maximum benefit is exactly to improve yield rate, reduces production cost.Walnut shell is that surface is mostly micro-
Hole, the preferable filtrate of adsorption effect and natural tumbling material, polishing material and wear-resistant material have hardness height, intensity
Height, the excellent performances such as crushing resistance is good, wearability is good and chemical property is stablized.It is carried with advances in technology with productivity level
Height, activated carbon industry are being grown rapidly, and the selection of the raw material of activated carbon and preparation method are then the important sets of activated carbon industry
Into part.At present in activated carbon type, previous activated carbon raw material known for people is various in style, and quality is irregular, it is difficult to
Reach the requirement standard of production and life.In addition, existing most of method for preparation of active carbon preparation process flows are complicated, energy consumption
Greatly, investment is more and finished product rate is low.
Invention content
The technical problems to be solved by the invention are in view of the above shortcomings of the prior art, to provide one kind.The preparation
Method using walnut shell as raw material, the activated carbon hole that is prepared is flourishing, absorption property is good, intensity is high, easy regeneration, economy and durability
The features such as, walnut shell activated carbon product be mainly used in drinking water, pure water, alcoholic, beverage, the purification of trade effluent, decoloration,
Dechlorination, deodorization；Removal of mercaptans of oil refining industry etc. is can also be used for, and without harmful ingredient and without chemical residual etc.
Side effect is nuisanceless, green activated carbon variety, thus has a vast market prospect and good economic and social benefits.
In order to solve the above technical problems, the technical solution adopted by the present invention is：A kind of preparation method of walnut shell activated carbon,
It is characterized in that, this method includes the following steps：
Step 1: sorting：Primary election shell thickness is more than the walnut shell of 0.2mm, the biodiversity content of the walnut shell for 5%~
8%, the pulp of noresidue attachment in the walnut shell；
Step 2: removal of impurities：The walnut shell of primary election in step 1 is passed through into the impurity in vibrating screening machine removing walnut shell；
Step 3: classification is handled：Walnut shell after cleaning in step 2 is promoted to by multi-stage rotary screen by elevator, is passed through
The impurity screened out in walnut shell of multi-stage rotary screen removes the dirt in walnut shell, finally by skin using deduster
The ironware in walnut shell is removed with magnetic separator；
Step 4: raw material stores：By elevator by through classification, treated that walnut shell is promoted to conveyer in step 3,
It is stored by multistage discharger, ventilation shaft and high pressure positive blower to raw material storage tanks, and ensures what is stored in raw material storage tanks
Biodiversity content in walnut shell is no more than 8%；
Step 5: carbonization and activation：The walnut shell that raw material storage tanks are stored in step 4 is delivered to by conveyer
Activation equipment feeder enters back into carbonization-activation equipment integrating and is carbonized and is activated, and obtains walnut shell shaped activated carbon；
Step 6: secondary removal of impurities：The shelly-shaped activated carbon of walnut in step 5 is transported to magnetic belt separator by transmission device
The iron-containing impurity in walnut shell shaped activated carbon is removed, unselected net sand in walnut shell shaped activated carbon is removed using sand removing machine
Stone；
Step 7: broken packing：By the walnut shell shaped activated carbon after removal of impurities secondary in step 6 by blade crusher into
Row is broken, then by roller pair breaking crusher machine, is then dispensed after linear vibrating screen screens according to granularity, obtain walnut shell
Active carbon finished products.
The preparation method of above-mentioned a kind of walnut shell activated carbon, which is characterized in that deduster described in step 2 is tetrad
Deduster and pulse dust collector.
The preparation method of above-mentioned a kind of walnut shell activated carbon, which is characterized in that be carbonized and activate described in step 5
Detailed process includes the following steps：
The walnut shell that raw material storage tanks are stored in step 4 will be sent into carbonization-activation equipment integrating by step 501,
3h is preheated under conditions of 80 DEG C~100 DEG C；
Step 502, will be preheated in step 501 after walnut shell be carbonized under conditions of 850 DEG C~950 DEG C 20h~
For 24 hours, it is zero to make the wood tar content in walnut shell；
Walnut shell in step 502 after carbonization is used afterheat steam pot by step 503 under conditions of 850 DEG C~950 DEG C
The steam of stove conveying 3MPa~5MPa pressure carries out the activation of 20h~for 24 hours；
Step 504, will be activated in step 503 after walnut shell under conditions of 80 DEG C~100 DEG C natural cooling 3h, obtain
To walnut shell shaped activated carbon.
A kind of preparation method of above-mentioned walnut shell activated carbon, which is characterized in that waste heat steam boiler described in step 503
Quantity for 2, the waste heat steam boiler can generate 5 kilograms of 2 tons of steams per hour.
Compared with the prior art, the present invention has the following advantages：
1st, the activated carbon hole of the invention using walnut shell as raw material, being prepared is flourishing, absorption property is good, intensity is high, easy
The features such as regeneration, economy and durability, walnut shell activated carbon product are mainly used in drinking water, pure water, alcoholic, beverage, industry dirt
Purification, decoloration, dechlorination, the deodorization of water；It can also be used for removal of mercaptans of oil refining industry etc..
2nd, it is nuisanceless, green work without harmful ingredient and without side effects such as chemical residuals in the present invention
Property charcoal kind, thus have a vast market prospect and good economic and social benefits.
Technical scheme of the present invention is described in further detail below by embodiment.
Specific embodiment
Embodiment 1
The preparation method of the present embodiment walnut shell activated carbon includes the following steps：
Step 1: sorting：Primary election shell thickness is more than the walnut shell of 0.2mm, the biodiversity content of the walnut shell for 5%~
8%, the pulp of noresidue attachment in the walnut shell；
Step 2: removal of impurities：By the walnut shell of primary election in step 1 by the impurity in vibrating screening machine removing walnut shell, remove
Remove the impurity such as plastic paper, stone, the wood in walnut shell；
Step 3: classification is handled：Walnut shell after cleaning in step 2 is promoted to by multi-stage rotary screen by elevator, is passed through
The impurity screened out in walnut shell of multi-stage rotary screen is removed using tetrad deduster and pulse dust collector in walnut shell
Dirt finally removes the ironware in walnut shell by magnetic belt separator, the spiral shell on ground when such as picking up walnut, pounding walnut, collect walnut
Silk or nail etc.；
Step 4: raw material stores：By elevator by through classification, treated that walnut shell is promoted to conveyer in step 3,
It is stored by multistage discharger, ventilation shaft and high pressure positive blower to raw material storage tanks, and ensures what is stored in raw material storage tanks
Biodiversity content in walnut shell is no more than 8%；The deposit binning specification of the multistage discharger is 1.5 meters × 2 meters, ventilation
The specification of pipeline is 230cm × 50cm, and it is 4kW that high pressure positive blower, which is power, the specification of raw material storage tanks storage for 2000~
2500m3；
Step 5: carbonization and activation：Raw material will be stored in step 4 by the conveyer of 300 × 14000cm of Φ to store
The walnut shell of tank is delivered to the activation equipment feeder of 300 × 7000cm of Φ, enters back into the carbonization-activation one of 300 × 7 meters of Φ
It is carbonized and is activated in equipment, obtain walnut shell shaped activated carbon；
The detailed process of the carbonization and activation includes the following steps：
The walnut shell that raw material storage tanks are stored in step 4 will be sent into carbonization-activation equipment integrating by step 501,
3h is preheated under conditions of 90 DEG C；
Step 502, will be preheated in step 501 after walnut shell be carbonized under conditions of 900 DEG C 22h, make in walnut shell
Wood tar content be zero；
Step 503 conveys the walnut shell in step 502 after carbonization under conditions of 900 DEG C with waste heat steam boiler
The steam of 4MPa pressure carries out the activation of 22h；
Step 504, will be activated in step 503 after walnut shell under conditions of 90 DEG C natural cooling 3h, obtain walnut
Shelly-shaped activated carbon.
The quantity of the waste heat steam boiler is 2, and the waste heat steam boiler is steamed for that can generate 5 kilograms of pressure per hour
2 tons of vapour.
Step 6: secondary removal of impurities：The shelly-shaped activated carbon of walnut in step 5 is transported to magnetic belt separator by transmission device
The iron-containing impurity in walnut shell shaped activated carbon is removed, unselected net sand in walnut shell shaped activated carbon is removed using sand removing machine
Stone；
Step 7: broken packing：By the walnut shell shaped activated carbon after removal of impurities secondary in step 6 by blade crusher into
Row is broken, then by roller pair breaking crusher machine, then according to 4~8 mesh, 8~10 mesh, 10~20 after linear vibrating screen screens
Mesh, 20~40 mesh, 40~0 mesh, 60~80 6 ranks of mesh sieve dispensed, obtain walnut shell active carbon finished products, the core
Peach shell active carbon finished products carry out packaging installation according to 25kg, 50kg, 100kg, 500kg or 1000kg.
The moisture of walnut shell activated carbon manufactured in the present embodiment is 5%~8%, iodine sorption value 800mg/g~1000mg/g,
Methylene blue decolorizing ability 8mL/0.1g~14mL/0.1g, more than 90% percent of pass of 200 mesh of granularity.
Embodiment 2
The preparation method of the present embodiment walnut shell activated carbon includes the following steps：
Step 1: sorting：Primary election shell thickness is more than the walnut shell of 0.2mm, the biodiversity content of the walnut shell for 5%~
8%, the pulp of noresidue attachment in the walnut shell；
Step 2: removal of impurities：By the walnut shell of primary election in step 1 by the impurity in vibrating screening machine removing walnut shell, remove
Remove the impurity such as plastic paper, stone, the wood in walnut shell；
Step 3: classification is handled：Walnut shell after cleaning in step 2 is promoted to by multi-stage rotary screen by elevator, is passed through
The impurity screened out in walnut shell of multi-stage rotary screen is removed using tetrad deduster and pulse dust collector in walnut shell
Dirt finally removes the ironware in walnut shell by magnetic belt separator, the spiral shell on ground when such as picking up walnut, pounding walnut, collect walnut
Silk or nail etc.；
Step 4: raw material stores：By elevator by through classification, treated that walnut shell is promoted to conveyer in step 3,
It is stored by multistage discharger, ventilation shaft and high pressure positive blower to raw material storage tanks, and ensures what is stored in raw material storage tanks
Biodiversity content in walnut shell is no more than 8%；The deposit binning specification of the multistage discharger is 1.5 meters × 2 meters, ventilation
The specification of pipeline is 230cm × 50cm, and it is 4kW that high pressure positive blower, which is power, the specification of raw material storage tanks storage for 2000~
2500m3；
Step 5: carbonization and activation：Raw material will be stored in step 4 by the conveyer of 300 × 14000cm of Φ to store
The walnut shell of tank is delivered to the activation equipment feeder of 300 × 7000cm of Φ, enters back into the carbonization-activation one of 300 × 7 meters of Φ
It is carbonized and is activated in equipment, obtain walnut shell shaped activated carbon；
The detailed process of the carbonization and activation includes the following steps：
The walnut shell that raw material storage tanks are stored in step 4 will be sent into carbonization-activation equipment integrating by step 501,
3h is preheated under conditions of 80 DEG C；
Step 502, will be preheated in step 501 after walnut shell be carbonized for 24 hours under conditions of 850 DEG C, make in walnut shell
Wood tar content be zero；
Step 503 conveys the walnut shell in step 502 after carbonization under conditions of 850 DEG C with waste heat steam boiler
The steam of 5MPa pressure carries out activation for 24 hours；
Step 504, will be activated in step 503 after walnut shell under conditions of 80 DEG C natural cooling 3h, obtain walnut
Shelly-shaped activated carbon.
The quantity of the waste heat steam boiler is 2, and the waste heat steam boiler is steamed for that can generate 5 kilograms of pressure per hour
2 tons of vapour.
Step 6: secondary removal of impurities：The shelly-shaped activated carbon of walnut in step 5 is transported to magnetic belt separator by transmission device
The iron-containing impurity in walnut shell shaped activated carbon is removed, unselected net sand in walnut shell shaped activated carbon is removed using sand removing machine
Stone；
Step 7: broken packing：By the walnut shell shaped activated carbon after removal of impurities secondary in step 6 by blade crusher into
Row is broken, then by roller pair breaking crusher machine, then according to 4~8 mesh, 8~10 mesh, 10~20 after linear vibrating screen screens
Mesh, 20~40 mesh, 40~0 mesh, 60~80 6 ranks of mesh sieve dispensed, obtain walnut shell active carbon finished products, the core
Peach shell active carbon finished products carry out packaging installation according to 25kg, 50kg, 100kg, 500kg or 1000kg.
The moisture of walnut shell activated carbon manufactured in the present embodiment is 5%~8%, iodine sorption value 800mg/g~1000mg/g,
Methylene blue decolorizing ability 8mL/0.1g~14mL/0.1g, more than 90% percent of pass of 200 mesh of granularity.
Embodiment 3
The preparation method of the present embodiment walnut shell activated carbon includes the following steps：
Step 1: sorting：Primary election shell thickness is more than the walnut shell of 0.2mm, the biodiversity content of the walnut shell for 5%~
8%, the pulp of noresidue attachment in the walnut shell；
Step 2: removal of impurities：By the walnut shell of primary election in step 1 by the impurity in vibrating screening machine removing walnut shell, remove
Remove the impurity such as plastic paper, stone, the wood in walnut shell；
Step 3: classification is handled：Walnut shell after cleaning in step 2 is promoted to by multi-stage rotary screen by elevator, is passed through
The impurity screened out in walnut shell of multi-stage rotary screen is removed using tetrad deduster and pulse dust collector in walnut shell
Dirt finally removes the ironware in walnut shell by magnetic belt separator, the spiral shell on ground when such as picking up walnut, pounding walnut, collect walnut
Silk or nail etc.；
Step 4: raw material stores：By elevator by through classification, treated that walnut shell is promoted to conveyer in step 3,
It is stored by multistage discharger, ventilation shaft and high pressure positive blower to raw material storage tanks, and ensures what is stored in raw material storage tanks
Biodiversity content in walnut shell is no more than 8%；The deposit binning specification of the multistage discharger is 1.5 meters × 2 meters, ventilation
The specification of pipeline is 230cm × 50cm, and it is 4kW that high pressure positive blower, which is power, the specification of raw material storage tanks storage for 2000~
2500m3；
Step 5: carbonization and activation：Raw material will be stored in step 4 by the conveyer of 300 × 14000cm of Φ to store
The walnut shell of tank is delivered to the activation equipment feeder of 300 × 7000cm of Φ, enters back into the carbonization-activation one of 300 × 7 meters of Φ
It is carbonized and is activated in equipment, obtain walnut shell shaped activated carbon；
The detailed process of the carbonization and activation includes the following steps：
The walnut shell that raw material storage tanks are stored in step 4 will be sent into carbonization-activation equipment integrating by step 501,
3h is preheated under conditions of 100 DEG C；
Step 502, will be preheated in step 501 after walnut shell be carbonized under conditions of 950 DEG C 20h, make in walnut shell
Wood tar content be zero；
Step 503 conveys the walnut shell in step 502 after carbonization under conditions of 950 DEG C with waste heat steam boiler
The steam of 5MPa pressure carries out activation for 24 hours；
Step 504, will be activated in step 503 after walnut shell under conditions of 100 DEG C natural cooling 3h, obtain walnut
Shelly-shaped activated carbon.
The quantity of the waste heat steam boiler is 2.
Step 6: secondary removal of impurities：The shelly-shaped activated carbon of walnut in step 5 is transported to magnetic belt separator by transmission device
The iron-containing impurity in walnut shell shaped activated carbon is removed, unselected net sand in walnut shell shaped activated carbon is removed using sand removing machine
Stone；
Step 7: broken packing：By the walnut shell shaped activated carbon after removal of impurities secondary in step 6 by blade crusher into
Row is broken, then by roller pair breaking crusher machine, then according to 4~8 mesh, 8~10 mesh, 10~20 after linear vibrating screen screens
Mesh, 20~40 mesh, 40~0 mesh, 60~80 6 ranks of mesh sieve dispensed, obtain walnut shell active carbon finished products, the core
Peach shell active carbon finished products carry out packaging installation according to 25kg, 50kg, 100kg, 500kg or 1000kg.
The moisture of walnut shell activated carbon manufactured in the present embodiment is 5%~8%, iodine sorption value 800mg/g~1000mg/g,
Methylene blue decolorizing ability 8mL/0.1g~14mL/0.1g, more than 90% percent of pass of 200 mesh of granularity.
The manufacturer of equipment used in 1 embodiment of the present invention 1~3 of table and specifications and models
The above is only presently preferred embodiments of the present invention, not the present invention is imposed any restrictions.It is every according to invention skill
Any simple modification, change and equivalence change that art substantially makees above example, still fall within technical solution of the present invention
Protection domain in.
Claims (3)
1. a kind of preparation method of walnut shell activated carbon, which is characterized in that this method includes the following steps：
Step 1: sorting：Primary election shell thickness is more than the walnut shell of 0.2mm, and the moisture of the walnut shell is 5%~8%, described
The pulp that noresidue is adhered in walnut shell；
Step 2: removal of impurities：The walnut shell of primary election in step 1 is passed through into the impurity in vibrating screening machine removing walnut shell；
Step 3: classification is handled：Walnut shell after cleaning in step 2 is promoted to by multi-stage rotary screen by elevator, through multistage
The impurity screened out in walnut shell of rotary screen removes the dirt in walnut shell, finally by belt magnetic using deduster
Machine is selected to remove the ironware in walnut shell；The deduster is tetrad deduster and pulse dust collector；
Step 4: raw material stores：By elevator by through classification, treated that walnut shell is promoted to conveyer in step 3, pass through
Multistage discharger, ventilation shaft and high pressure positive blower to raw material storage tanks store, and ensure the walnut stored in raw material storage tanks
The moisture of shell is no more than 8%；
Step 5: carbonization and activation：The walnut shell that raw material storage tanks are stored in step 4 is delivered to by activation by conveyer
Equipment feeder enters back into carbonization-activation equipment integrating and is carbonized and is activated, and obtains walnut shell shaped activated carbon；
Step 6: secondary removal of impurities：The shelly-shaped activated carbon of walnut in step 5 is transported to magnetic belt separator by transmission device to remove
Iron-containing impurity in walnut shell shaped activated carbon removes unselected net sandstone in walnut shell shaped activated carbon using sand removing machine；
Step 7: broken packing：Walnut shell shaped activated carbon after removal of impurities secondary in step 6 is broken by blade crusher
It is broken, then by roller pair breaking crusher machine, then dispensed after linear vibrating screen screens according to granularity, obtain walnut shell activity
Charcoal finished product.
A kind of 2. preparation method of walnut shell activated carbon according to claim 1, which is characterized in that carbon described in step 5
Change and the detailed process of activation includes the following steps：
Step 501, will be stored in step 4 raw material storage tanks walnut shell be sent into carbonization-activation equipment integrating in, 80 DEG C~
3h is preheated under conditions of 100 DEG C；
Step 502, will be preheated in step 501 after walnut shell be carbonized under conditions of 850 DEG C~950 DEG C 20h~for 24 hours, make
Wood tar content in walnut shell is zero；
Walnut shell in step 502 after carbonization is used waste heat steam boiler defeated by step 503 under conditions of 850 DEG C~950 DEG C
The steam of 3MPa~5MPa pressure is sent to carry out the activation of 20h~for 24 hours；
Step 504, will be activated in step 503 after walnut shell under conditions of 80 DEG C~100 DEG C natural cooling 3h, obtain core
The shelly-shaped activated carbon of peach.
3. the preparation method of a kind of walnut shell activated carbon according to claim 2, which is characterized in that described in step 503
The quantity of waste heat steam boiler is 2.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19990046395A (en) * | 1999-03-05 | 1999-07-05 | 배우근 | Manufacturing a process fruit seeds utilize high quality coal |
| CN1824604A (en) * | 2005-09-19 | 2006-08-30 | 古可隆 | Method of making special active carbon for capacitor using hard fruit shell |
| CN102423688A (en) * | 2011-08-26 | 2012-04-25 | 昆明理工大学 | Preparation method for walnut shell active carbon adsorbent for purifying low concentration phosphine |
| CN103979534A (en) * | 2014-05-14 | 2014-08-13 | 石家庄金太阳生物有机肥有限公司 | Active carbon preparing method by adopting walnut shell as raw material and application of the active carbon |
| RU2015107391A (en) * | 2015-03-04 | 2016-09-27 | Открытое акционерное общество "Электростальское научно-производственное объединение "Неорганика"(ОАО"ЭНПО" Неорганика") | METHOD FOR PRODUCING CRUSED ACTIVE COAL |
-
2017
- 2017-03-20 CN CN201710166258.2A patent/CN106904611B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19990046395A (en) * | 1999-03-05 | 1999-07-05 | 배우근 | Manufacturing a process fruit seeds utilize high quality coal |
| CN1824604A (en) * | 2005-09-19 | 2006-08-30 | 古可隆 | Method of making special active carbon for capacitor using hard fruit shell |
| CN102423688A (en) * | 2011-08-26 | 2012-04-25 | 昆明理工大学 | Preparation method for walnut shell active carbon adsorbent for purifying low concentration phosphine |
| CN103979534A (en) * | 2014-05-14 | 2014-08-13 | 石家庄金太阳生物有机肥有限公司 | Active carbon preparing method by adopting walnut shell as raw material and application of the active carbon |
| RU2015107391A (en) * | 2015-03-04 | 2016-09-27 | Открытое акционерное общество "Электростальское научно-производственное объединение "Неорганика"(ОАО"ЭНПО" Неорганика") | METHOD FOR PRODUCING CRUSED ACTIVE COAL |
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