CN1493543A - Environmental protection type kieselguhr production process and its production device - Google Patents
Environmental protection type kieselguhr production process and its production device Download PDFInfo
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- CN1493543A CN1493543A CNA031264204A CN03126420A CN1493543A CN 1493543 A CN1493543 A CN 1493543A CN A031264204 A CNA031264204 A CN A031264204A CN 03126420 A CN03126420 A CN 03126420A CN 1493543 A CN1493543 A CN 1493543A
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Abstract
A process and apparatus for preparing the environment protection type diatomite are disclosed. Said process includes feeding raw diatomite, primary separating and purifying, adding cosolvent, thermally dissolving the cosolvent, secondary separating and purifying, high-temp calcining, cooling, pulverizing and classifying. Its apparatus is composed of drying-pulverizing unit, primary raw material separator, cosolvent feeder, secondary separator, high-temp calcining unit, cooling-pulverizing unit and classifier.
Description
Technical field
The present invention relates to a kind of diatomite production technique, particularly a kind of diatomite production technique and complexes thereof of environmental protection and energy saving heavy duty detergent.
Background technology
The industrial raw materials that diatomite is important as a comparison has very big utility value, as filtration medium, is used as filler etc.But natural diatomite could use after must separating through retrofit.Because diatomaceous characteristic, existing diatomite production technique uses conventional device can produce a large amount of dust pollutions when work, and it is big to have raw materials consumption simultaneously, and kind is single, the defective that production efficiency is not high.
Summary of the invention
The object of the present invention is to provide autochthonal production art of a kind of environment-friendly type diatom and device, it has the advantages that dust pollution is little, energy-efficient, diversify.
The autochthonal production art of environment-friendly type diatom of the present invention may further comprise the steps:
A: raw material pan feeding, oven dry pulverizing, purification, fusing assistant add: raw material diatomite is introduced in the drying and crushing machine dried pulverizing, the material after the pulverizing carries out the lifting of wind-force negative pressure and separates purification, and the material after the purification adds solubility promoter, stirring;
B: fusing assistant dissolving, purification once more: the material behind the interpolation solubility promoter heats negative-pressure air power and promotes, and introduces hot gas flow in the lifting process, makes the solubility promoter dissolving, and the material after the lifting separates purification once more;
C: calcined by rotary kiln: the material that separates after purifying enters calcined by rotary kiln once more, and temperature is 800 ℃-1200 ℃, and the time is 40-60 minute;
D: cooling pulverizing: the material after the calcining is introduced cooling handling machinery and cooling pulverizer, cools off in conveying and crushing process;
E: grading: the material after cooling is pulverized enters grading equipment, carries out classification and packing.
This above-mentioned drying and crushing process is carried out in the drying and crushing blower fan, and the waste hot air stream of introducing the rotary kiln generation in this drying air fan carries out drying; This negative-pressure air power promotes sepn process and finishes by micro-powder graded machine, cyclonic separator, environmental protection collector and Roots's induced draft fan successively, collects isolating material in cyclonic separator and environmental protection collector; The process of this interpolation solubility promoter is finished in having the container of whipping appts.
The hot gas flow of introducing in this above-mentioned heating negative-pressure air power lifting process is the waste heat air-flow that rotary kiln produces, and this hot gas flow is sneaked into material and made the solubility promoter dissolving; This separates purification once more finishes by micro-powder graded machine, cyclonic separator, environmental protection collector and Roots's induced draft fan successively, collects isolating material in cyclonic separator and environmental protection collector.
This above-mentioned calcined by rotary kiln carries out in the combustion gas rotary kiln, and combustion gas rotary kiln institute incendiary gas is coal gas, and this coal gas is produced by producer gas generator.
The cooling course of conveying that this above-mentioned cooling is pulverized uses the helical feed that has cyclic water jacket wherein to finish circulation-supplied cold water in the cyclic water jacket; The crushing process that this cooling is pulverized carries out in the water-cooled pulverizer, and this water-cooled pulverizer is hollow pair roller pulverizer, introduces circulating water in the hollow pair roller.
This above-mentioned grading process is that negative-pressure air power promotes and finishes by micro-powder graded machine, cyclonic separator, cyclonic separator, environmental protection collector and Roots's induced draft fan successively, and obtains the product of different-grain diameter in micro-powder graded machine, cyclonic separator, cyclonic separator, environmental protection collector.
Above-mentioned technology also comprises the ultrafine powder production process, and this process is introduced ball mill with the product of the micro-powder graded machine output in the grading process and processed, and carries out negative pressure then and separates the lifting separation, obtains the powders with different particle product respectively.
The present invention also provides a kind of device that is fit to above-mentioned production technique, comprises drying and crushing device, the former material separating device of one-level, solubility promoter adding set, secondary raw materials tripping device, high-temperature calcination device, cooling shredding unit and grading packing plant; Wherein the drying and crushing device is the pulverizer that utilizes the waste heat dried material of high-temperature calcination device generation; One-level raw material sorting equipment comprises micro-powder graded machine, cyclonic separator, environmental protection collector and Roots's induced draft fan, constitutes negative-pressure air power and promotes tripping device; The solubility promoter adding set is the container of band whipping appts; The secondary raw materials sorting equipment comprises micro-powder graded machine, cyclonic separator, environmental protection collector and Roots's induced draft fan, constitutes negative-pressure air power and promotes tripping device, and connect the small part waste heat air-flow of high-temperature calcination device in lifting gear; High-temperature calcination device is a rotary kiln; The cooling shredding unit comprises water-cooling spiral handling machinery and water-cooled pulverizer; The grading packing plant comprises micro-powder graded machine, cyclonic separator, environmental protection collector and Roots's induced draft fan, constitutes negative-pressure air power and promotes tripping device.
This high-temperature calcination device of above-mentioned production equipment also comprises producer gas generator, and rotary kiln is the combustion gas rotary kiln, and producer gas generator is to rotary kiln supply burning coal gas; This producer gas generator comprises that coaling gear, steam pockets, opening for feed and body of heater constitute, and wherein body of heater is the two-deck oven bladder structure, and outer flue is a lagging material, and the internal layer flue is a water jacket, and this water jacket is connected with steam pockets, is used to produce the personal steam of gas furnace.
This water-cooled pulverizer in the above-mentioned autochthonal product device is the pair roller type pulverizer, and this pair roller is arranged to hollow structure, and this hollow pair roller connects circulating water.
Pan feeding and negative-pressure air-flow promote tripping device and closed helix transporting device under negative pressure state owing to adopt, and technology of the present invention is seldom produced in production work or do not produce dust pollution, and noise is low.Use to purify heating gas as the calcining thermal source, fuel economy consumption can reduce production costs greatly.Adopt multistage pulverizing isolation technique, can produce different size particulate diatomaceous earth products, be suitable for the needs of multiple different occasions.
Description of drawings
Fig. 1 is a process flow diagram of the present invention;
Fig. 2 is the module sketch of device of the present invention;
Fig. 3 is the structural representation of device of the present invention;
Fig. 4 is the structural representation of producer gas generator of the present invention;
Fig. 5 is the structural representation of water-cooled pulverizer of the present invention.
Embodiment
As shown in Figure 1, diatomite of the present invention is purified, is added processes such as solubility promoter, heating for dissolving solubility promoter, secondary separation purification, high-temperature calcination, cooling pulverizing, grading through raw material pan feeding, flash liberation respectively and obtains different products.
As Fig. 2, shown in Figure 3, the autochthonal product device of environment-friendly type diatom of the present invention is divided into drying and crushing device, the former material separating device of one-level, solubility promoter adding set, secondary raw materials tripping device, high-temperature calcination device, cooling shredding unit and grading packing plant from module; Wherein the drying and crushing device is the pulverizer that utilizes the waste heat dried material of high-temperature calcination device generation; One-level raw material sorting equipment comprises micro-powder graded machine, cyclonic separator, environmental protection collector and Roots's induced draft fan, constitutes negative-pressure air power and promotes tripping device; The solubility promoter adding set is the container of band whipping appts; The secondary raw materials sorting equipment comprises micro-powder graded machine, cyclonic separator, environmental protection collector and Roots's induced draft fan, constitutes negative-pressure air power and promotes tripping device, and connect the small part waste heat air-flow of high-temperature calcination device in lifting gear; High-temperature calcination device is a rotary kiln; The cooling shredding unit comprises water-cooling spiral handling machinery and water-cooled pulverizer; The grading packing plant comprises micro-powder graded machine, cyclonic separator, environmental protection collector and Roots's induced draft fan, constitutes negative-pressure air power and promotes tripping device.
Wherein the raw material drying shredding unit is a drying and crushing blower fan 3, and this drying and crushing blower fan 3 is to introduce the waste hot air stream that has utilized rotary kiln 26 to produce to carry out drying and crushing in shredding unit, to reduce the drying step Individual existence.
One-level raw material sorting equipment is made of micro-powder graded machine 4, cyclonic separator 5, environmental protection collector 6 and Roots's induced draft fan 11, and Roots's induced draft fan 11 is positioned at the afterbody of whole device, thereby forms a kind of negative pressure Working environment.The material inlet of micro-powder graded machine 4 connects drying and crushing blower fan 3, carries out classification so that the material after the drying and crushing is promoted in the micro-powder graded machine 4, and the bottom of micro-powder graded machine 4 is provided with closes the wind blow-off valve, is used to discharge impurity and large granular materials.The air stream outlet of micro-powder graded machine 4 is connected to the airflow inlet of cyclonic separator 5, and the air stream outlet of cyclonic separator 5 connects the airflow inlet of environmental protection collector 6, and the bottom of cyclonic separator 5 is provided with closes the wind blow-off valve, is used to discharge isolated material.Roots's induced draft fan 11 is connected to the air stream outlet of environmental protection collector 6 by valve 10, and the bottom of environmental protection collector 6 also is provided with closes the wind blow-off valve, is used to discharge isolated salvage stores.The pass wind blow-off valve of cyclonic separator 5 and environmental protection collector 6 is connected in the Material collecting box for harvesting that has spiral conveyer 12 by pipeline respectively, and the discharge port of this spiral conveyer 12 is connected to the solubility promoter adding set.
The solubility promoter adding set is one to have the Material collecting box for harvesting 13 of whipping appts, in this Material collecting box for harvesting 13, stirs while add solubility promoter, and makes it to mix as far as possible.
The raw material that mixes solubility promoter is again by spiral conveyer 14, and the discharge port of this spiral conveyer 14 is connected to the airflow inlet of the micro-powder graded machine 15 of secondary raw materials sorting equipment by pipeline.
The secondary raw materials sorting equipment is made of micro-powder graded machine 15, cyclonic separator 16, environmental protection collector 17 and Roots's induced draft fan 22, its composition and mode of connection and one-level raw material sorting equipment are basic identical, different is is connected a pipeline that is connected with the waste heat air-flow of rotary kiln 26 again in the connecting pipeline of spiral conveyer 14 and micro-powder graded machine 15, so that in process of air delivery, make the material heating, and then make the solubility promoter mixed dissolution in the diatomite material.
The pass wind blow-off valve of cyclonic separator 16 in the secondary raw materials sorting equipment and environmental protection collector 17 respectively is connected in the Material collecting box for harvesting that has spiral conveyer 23 by pipeline, again by spiral conveyer 24 with mass transport in next step treatment unit rotary kiln 26.
Rotary kiln 26 be with the burning coal gas be the rotary kiln of the energy, the gas exit of producer gas generator 47 is connected with pipeline with the rotary kiln burner noz(zle), the while be connected with blower fan 55, be used for aftercombustion oxygen.The two ends of rotary kiln 26 respectively are provided with thermopair 25,27, are used to detect the rotary kiln temperature of combustion.
Rotary kiln 26 discharge ends connect water-cooling spiral handling machinery 28 by pipeline, and the housing of this water-cooling spiral handling machinery 28 is provided with cyclic water jacket, is used for cooling off the material at course of conveying.The discharge port of this water-cooling spiral handling machinery 28 connects water-cooled pulverizer 29.And be provided with the water supply pump 30 that circulating water is used, be water-cooling spiral handling machinery 28 and water-cooled pulverizer 29 supply cold water.
The discharge port of water-cooled pulverizer 29 connects the grading device by pipeline, and this grading device comprises the micro-powder graded machine 31 and the 34A of two polyphones, and the discharge port of micro-powder graded machine 31 and 34A respectively is provided with and closes the wind blow-off valve, is respectively applied for the product of output different-grain diameter.The air stream outlet of micro-powder graded machine 34A connects cyclonic separator 35A by pipeline, this cyclonic separator 35A is provided with and closes the wind blow-off valve, be used to export the littler product of particle diameter, and the air stream outlet of cyclonic separator 35A is connected to environmental protection collector 36A with pipeline, this environmental protection collector 36A also is provided with and closes wind blow-off valve 42, be used to export the product of minimum grain size, and the air stream outlet of environmental protection collector 36A connects Roots's induced draft fan 40A, so that form subnormal ambient.
For obtaining the littler product of another kind of particle diameter rank, ball mill 33 and superfine product classification packing plant can also be set, the discharge port of micro-powder graded machine 31 connects Material collecting box for harvesting 32 by pipeline, this Material collecting box for harvesting 32 is provided with two discharge ports, a discharge port is wherein guided packing plant into, another discharge port is connected to ball mill 33 by pipeline, the discharge port of ball mill 33 is connected to efficient micro-powder graded machine 34B, efficient micro-powder graded machine 34B is provided with and closes the wind blow-off valve, be used for output products, the air stream outlet of efficient micro-powder graded machine 34B then connects cyclonic separator 35B, cyclonic separator 35B is provided with and closes the wind blow-off valve, be used for output products, air stream outlet then connects environmental protection collector 36B, and this environmental protection collector 36B is provided with and closes the wind blow-off valve, is used for output products, the air stream outlet of environmental protection collector 36B is connected to Roots's induced draft fan 40B, so that form subnormal ambient.
By above-mentioned device, can in the discharge port of micro-powder graded machine 31, micro-powder graded machine 34A, cyclonic separator 35A, environmental protection collector 36A, micro-powder graded machine 34B, cyclonic separator 35B, environmental protection collector 36B, obtain different-grain diameter 7 in diatomaceous earth products.
Present embodiment also is provided with air compressor 59, is used to produce pressurized air, is connected with environmental protection collector 6,17,36A, 36B with valve 9,20,37A, 37B by pipeline respectively, is used to clear up the environmental protection collector.Also be connected in each wrapping machine, pack, as wrapping machine 45A and 45B.
Diatomite production equipment of the present invention is work like this.Raw material diatomite enters Material collecting box for harvesting 1, is input to drying and crushing blower fan 3 by spiral conveyer and carries out drying and crushing, and the thermal source of this drying and crushing blower fan 3 is waste heat air-flows that rotary kiln 26 produces, and detects drying temperature by thermopair 2.Pulverize of the wind-force lifting of dried material, rise in the micro-powder graded machine 4 and carry out classification, isolate bigger diatomite of out of use particle and impurity, discharge as waste material through Roots's induced draft fan 11.And the material that is fit to enters cyclonic separator 5 with air-flow and carries out cyclonic separation, the material particles that is fit to is discharged from the discharge port of cyclonic separator and is entered the Material collecting box for harvesting that has spiral conveyer 12, the air-flow of drawing from cyclonic separator 5 then enters the environmental protection collector 6 simultaneously, in environmental protection collector 6, still have the partial material particle separation to come out, enter in the Material collecting box for harvesting that has spiral conveyer 12 by the discharge port discharge.6 air stream outlets of environmental protection collector connect Roots's induced draft fan 11, and control by valve 10.The air outlet of Roots's induced draft fan 11 is discharged cleaned air.Thermopair 7 and vacuum table 8 wherein are set on the environmental protection collector 6, are used for monitor temperature and pressure.
Have material in the Material collecting box for harvesting of spiral conveyer 12 and enter the interpolation solubility promoter of next step handling procedure through helical feed, enter solubility promoter and add in the container 13, the whipping appts in this container 13 is even with solubility promoter and the mixing of materials that adds.The material of this moment is carried by spiral conveyer 14, at the discharge port of spiral conveyer 14, is risen in the micro-powder graded machine 15 by the wind-force of Roots's induced draft fan 22 and to carry out classification.Lift line in this process is connected with rotary kiln waste heat airflow pipeline, and then can improve air-flow and material temperature when promoting, and makes solubility promoter miscible in material.Classification through micro-powder graded machine 15, discharge unwanted waste material at discharge port, and qualified material moves to and carries out cyclonic separation in the cyclonic separator 16 still with air motion, and qualified material is discharged from discharge port and entered the Material collecting box for harvesting that has spiral conveyer 23.Air-flow continues to flow in the environmental protection collector 17, have small part still the material in air-flow blocked to reclaim by environmental protection collector 17 and enter in the Material collecting box for harvesting that has spiral conveyer 23, cleaned air is through 22 emptyings of Roots's induced draft fan.Wherein Roots's induced draft fan 22 is provided with valve 21, is used to control wind-force, and environmental protection collector 17 is provided with thermopair 18 and vacuum table 19, is used for monitor temperature and pressure.
Be arranged in the conveying of Material collecting box for harvesting material through spiral conveyer 23 and 24, be transported to the feed end of rotary kiln 26, calcining descends in rotary kiln.The heat of rotary kiln is supplied with by gas-fired, and coal gas is produced by producer gas generator.Producer gas generator 47 is connected with hot water pump 48, is used to produce coal gas, and thermopair 49,56 and tensimeter 50,51 are set simultaneously, is used for controlled temperature and pressure, and blower fan 58 replenishes air by valve 57 in producer.The coal gas that produces is through dust cleaning case 52 dedustings, and the air draught that produces by valve 53,54 and oxygenating blower fan 55 converges, and enters the burning of rotary kiln discharge end by mixing burner 59, and burned flame sprays into the kiln temperature that raises in the rotary kiln.
The material that revolution descends in rotary kiln through calcined by rotary kiln, enters in the water-cooling spiral transfer roller 28 again, is transported to while cooling off in the water-cooled pulverizer 29 and cools off pulverizing, and water-cooling spiral handling machinery 28 and water-cooled pulverizer are by water pump 30 feeding cold waters.
The material of pulverizing through water-cooled wind-force once more rises in the micro-powder graded machine 31 and carries out classification, and the material after the classification escapes and enter Material collecting box for harvesting 32 from closing the wind blow-off valve.Material in the air-flow continues to flow among the micro-powder graded machine 34A and carries out reclassification, also produces a kind of product at discharge port, and the particle diameter ratio Material collecting box for harvesting 32 of this product is medium and small.Air-flow continues to isolate another kind of product once more with the littler Flow of Goods and Materials of part particle diameter in cyclonic separator 35A.The remaining littler material of particle diameter enters in the environmental protection collector 36A with air-flow, and is blocked recovery by environmental protection collector 36, forms another product.And the air communication of environmental protection collector 36A is crossed valve 41A and Roots's induced draft fan 40A emptying, and environmental protection collector 36A is provided with tensimeter 39A and thermopair 38A, is used for monitor temperature and pressure.
Be discharged in the Material collecting box for harvesting 32 through the material after micro-powder graded machine 31 classifications, this partial material can be used as the product of corresponding specification, can pack and dispatch from the factory.Simultaneously can also continue to be processed into more tiny particulate product.
Material in the Material collecting box for harvesting 32 utilizes wind-force to be promoted among the micro-powder graded machine 34B and carries out fractional separation after pulverizing through ball mill 33, and the material of discharging from micro-powder graded machine 34B dispatches from the factory as a kind of finished product packing.Air-flow is introduced cyclonic separator 35B again, and the material that cyclonic separator 35B discharges also dispatches from the factory as a kind of packing of product.The material that last air-flow is separated in environmental protection collector 36B is also as product export.Air is through valve 41B and blower fan 40B emptying.Environmental protection collector 36B is provided with tensimeter 39B and thermopair 38B, is used for monitor temperature and pressure.
As shown in Figure 4, gazogene of the present invention is made of coaling gear 60, opening for feed 60, steam pockets 62, body of heater 65, body of heater 65 wherein has the two-deck oven bladder structure, outer flue 69 is adiabator layers, be used to keep temperature in the stove, the internal layer flue is a cyclic water jacket 68, and this cyclic water jacket 68 is connected with steam pockets 62, be used for the generation of body of heater 65 personal steam, steam pockets 62 is connected with hot water pump 48.The steam 64 of steam pockets 62 is introduced bottom of furnace body, be used for producing coal gas, when introducing this steam 64, replenishing the part air with blower fan with the coal effect of burning chamber, helping burning and the generation of coal gas, and from coal gas that body of heater is drawn through introducing the rotary kiln burning after the respective handling.
As shown in Figure 5, water-cooled pulverizer used in the present invention is the pair roller type pulverizer, and the pair roller 70 of this pulverizer is arranged to hollow structure, introduces circulating water in this hollow pair roller, be implemented in the cooling effect in the crushing process, reduce fatigue damage the later stage device.
By said apparatus, can obtain the wherein product of different size.
The autochthonal product device of environment-friendly type diatom of the present invention can reach following effect.To produce 3000T diatomite production line per year is that example is made novel process and former technology is made comparisons.
(1) the process stream transmission system adopts with the wind-force transmission and combines with closed spiral transmission, works under the powerful air inducing negative pressure state of high pressure, and noise is little, and non-flour dust overflow can reach the requirement of national environmental protection and hygienic standard.[detecting (2003) No. 0010 examining report books] novel process according to the occupational health of Jiaozhou City's Center for Disease Control than join with positive and negative pressure ratio, the former technology of paddle fan work has following characteristics:
A is simple to operate
B does not have dust, noise is low, has improved the able-bodied Working environment of assurance worker.
C has reduced the maintenance capacity of investment and easily worn part, has prolonged the production cycle, can save 200,000 yuan of one-time investments.
(2) novel process has increased drying system; it is thermal source that this system adopts the waste heat of calcined by rotary kiln product; the moisture content in the starting material is removed in oven dry; it is below 20% that former technology requires raw-material moisture content; and novel process requiring below 30% moisture content; both differ 10%; this moisture content of 10% is handled and need be solved with independent drying installation; promptly need a hotblast stove and a drying machine, equivalent production capacity need increase by 280,000 yuan of plant investments, per working days 24 hours needs bunker coals 3-5 ton; press 300 yuan as if per ton; annual by 300 productions day calculating; every year, but the save energy cost was more than 300,000 yuan, and reduced energy pollution, protected physical environment.
(3) novel process rotary kiln material feeding system has adopted extraordinary worm conveyor directly into expecting rotary kiln inside, compares with former technology, has removed the shortcoming of feed back, has increased turnout, has improved working efficiency.
(4) to have adopted repeatedly the heating gas behind the purifying and dedusting be thermal source to the novel process heating system, is the secondary pollution that thermal source has reduced product than former technology light oil, and free from extraneous odour has improved quality product, has reduced energy cost.Former technology is per ton with 0.15 ton in light oil, closes 380 yuan of valencys; Novel process product per ton closes 160 yuan of valencys with 0.4 ton in coal, and is cost-saved 220 yuan per ton, annual by cost-saved 660,000 yuan of calculating in 300 days.
(5) novel process is calcined a back crushing system and has been adopted water-cooled that rail is pulverized, and pulverizes than former process blade formula crushing blower to have following characteristics:
A has reduced the breakage to algae housing silicon skeleton, has guaranteed diatomaceous original function characteristic, has improved quality product.
B can make size distribution narrow down, and has improved the rate of permeation of product, has enlarged the range of application of product, has really played the effect of synergism and reducing expenditure.As by producing 600 tons high filtering velocity special type products, 300 yuan of calculating of increment per ton per year, can increase by 180,000 yuan of profits.
Material after the C calcining has reduced the degree of fatigue of later stage device after the water-cooled cooling, prolonged the device life cycle, has reduced maintenance capacity.The former technology 30-40 of product per ton unit design quota upkeep cost, novel process 15 yuan of quota upkeep costs per ton are per tonly saved 20 yuan, can save 60,000 yuan of upkeep costs every year.
(6) novel process secondary crushing system has adopted ball milling formula pulverizer, increased range of product, make the particle diameter and the specific surface of diatomaceous earth filler series product that very big breakthrough all be arranged, the meso-position radius of product is from having dropped to more than the 20um below the 7um, also has the negative micron of part product, filled up the blank of domestic market, satisfied the demand of different clients the diatomite ultra-fine filling material.The production line of the equal scale of a last in addition cover need increase by a cover dehumidification system, increases investment more than 200,000 yuan.Ultra-fine filling material product price is more than 5000 yuan/ton, is a times of usual production price.By producing 150 tons of calculating per year, can rise in value more than 300,000 yuan every year.
(7) novel process stock grading system has adopted the micro-powder graded machine of high frequency pressure type, and grading machine impeller design speed is that 0-6000 changes, and makes the granularity control of product handy, can adjust the product granularity structure by requirement of client arbitrarily, and quality product increases substantially.Strengthen and widened the scope of application of different industries, improved share of market greatly, economic benefit significantly improves.
(8) novel process material and air-seperation system cyclonic separator have adopted the mandatory gravity separation technology of bidirectional screw, improved separating effect greatly through facts have proved than former one-way spiral technology, compare than former technology, improved yield rate, alleviated the wearing and tearing of later stage device, economic benefit obviously improves.
Claims (10)
1. autochthonal production art of environment-friendly type diatom is characterized in that: may further comprise the steps:
A: raw material pan feeding, oven dry pulverizing, purification, fusing assistant add: raw material diatomite is introduced in the drying and crushing machine dried pulverizing, the material after the pulverizing carries out the lifting of wind-force negative pressure and separates purification, and the material after the purification adds solubility promoter, stirring;
B: fusing assistant dissolving, purification once more: the material behind the interpolation solubility promoter heats negative-pressure air power and promotes, and introduces hot gas flow in the lifting process, makes the solubility promoter dissolving, and the material after the lifting separates purification once more;
C: calcined by rotary kiln: the material that separates after purifying enters calcined by rotary kiln once more, and temperature is 800 ℃-1200 ℃, and the time is 40-60 minute;
D: cooling pulverizing: the material after the calcining is introduced cooling handling machinery and cooling pulverizer, cools off in conveying and crushing process;
E: grading: the material after cooling is pulverized enters grading equipment, carries out classification and packing.
2. the autochthonal production art of environment-friendly type diatom according to claim 1 is characterized in that: this drying and crushing process is carried out in the drying and crushing blower fan, and the waste hot air stream of introducing the rotary kiln generation in this drying air fan carries out drying; This negative-pressure air power promotes sepn process and finishes by micro-powder graded machine, cyclonic separator, environmental protection collector and Roots's induced draft fan successively, collects isolating material in cyclonic separator and environmental protection collector; The process of this interpolation solubility promoter is finished in having the container of whipping appts.
3. the autochthonal production art of environment-friendly type diatom according to claim 1 is characterized in that: the hot gas flow of introducing in this heating negative-pressure air power lifting process is the waste heat air-flow that rotary kiln produces, and this hot gas flow is sneaked into material and made the solubility promoter dissolving; This separates purification once more finishes by micro-powder graded machine, cyclonic separator, environmental protection collector and Roots's induced draft fan successively, collects isolating material in cyclonic separator and environmental protection collector.
4. the autochthonal production art of environment-friendly type diatom according to claim 1, it is characterized in that: this calcined by rotary kiln carries out in the combustion gas rotary kiln, and combustion gas rotary kiln institute incendiary gas is coal gas, and this coal gas is produced by producer gas generator.
5. the autochthonal production art of environment-friendly type diatom according to claim 1 is characterized in that: the cooling course of conveying that this cooling is pulverized uses the helical feed that has cyclic water jacket, circulation-supplied cold water in the cyclic water jacket; The crushing process that this cooling is pulverized carries out in the water-cooled pulverizer, and this water-cooled pulverizer is hollow pair roller pulverizer, introduces circulating water in the hollow pair roller.
6. the autochthonal production art of environment-friendly type diatom according to claim 1, it is characterized in that: this grading process is that negative-pressure air power promotes and finishes by micro-powder graded machine, cyclonic separator, cyclonic separator, environmental protection collector and Roots's induced draft fan successively, and obtains the product of different-grain diameter in micro-powder graded machine, cyclonic separator, cyclonic separator, environmental protection collector.
7. according to claim 1 or the autochthonal production art of 6 described environment-friendly type diatoms, it is characterized in that: also comprise the ultrafine powder production process, this process is introduced ball mill with the product of the micro-powder graded machine output in the grading process and is processed, carry out negative pressure then and separate the lifting separation, obtain the powders with different particle product respectively.
8. the production equipment of a production technique as claimed in claim 1 is characterized in that: comprise drying and crushing device, the former material separating device of one-level, solubility promoter adding set, secondary raw materials tripping device, high-temperature calcination device, cooling shredding unit and grading packing plant; Wherein the drying and crushing device is the pulverizer that utilizes the waste heat dried material of high-temperature calcination device generation; One-level raw material sorting equipment comprises micro-powder graded machine, cyclonic separator, environmental protection collector and Roots's induced draft fan, constitutes negative-pressure air power and promotes tripping device; The solubility promoter adding set is the container of band whipping appts; The secondary raw materials sorting equipment comprises micro-powder graded machine, cyclonic separator, environmental protection collector and Roots's induced draft fan, constitutes negative-pressure air power and promotes tripping device, and connect the small part waste heat air-flow of high-temperature calcination device in lifting gear; High-temperature calcination device is a rotary kiln; The cooling shredding unit comprises water-cooling spiral handling machinery and water-cooled pulverizer; The grading packing plant comprises micro-powder graded machine, cyclonic separator, environmental protection collector and Roots's induced draft fan, constitutes negative-pressure air power and promotes tripping device.
9. production equipment according to claim 8 is characterized in that: this high-temperature calcination device also comprises producer gas generator, and rotary kiln is the combustion gas rotary kiln, and producer gas generator is to rotary kiln supply burning coal gas; This producer gas generator comprises that coaling gear, steam pockets, opening for feed and body of heater constitute, and wherein body of heater is the two-deck oven bladder structure, and outer flue is a lagging material, and the internal layer flue is a water jacket, and this water jacket is connected with steam pockets, is used to produce the personal steam of gas furnace.
10. production equipment according to claim 8 is characterized in that: this water-cooled pulverizer is the pair roller type pulverizer, and this pair roller is arranged to hollow structure, and this hollow pair roller connects circulating water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031264204A CN1493543A (en) | 2003-09-28 | 2003-09-28 | Environmental protection type kieselguhr production process and its production device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031264204A CN1493543A (en) | 2003-09-28 | 2003-09-28 | Environmental protection type kieselguhr production process and its production device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101596490A (en) * | 2008-06-05 | 2009-12-09 | 中国矿业大学(北京) | A kind of dried, the integrated ore-dressing technique of wet method of diatomite ore |
| CN101845240A (en) * | 2010-04-29 | 2010-09-29 | 南通宝聚颜料有限公司 | Manufacturing method of granular iron oxide black pigment and double-roller grinder for realizing same |
| CN103213994A (en) * | 2013-04-29 | 2013-07-24 | 嵊州宝钒硅藻土有限公司 | Kieselguhr calcining device and method |
| CN107300317A (en) * | 2017-06-20 | 2017-10-27 | 嵊州宝钒硅藻土有限公司 | A kind of method of huge revolving kiln system and its calcined diatomite |
-
2003
- 2003-09-28 CN CNA031264204A patent/CN1493543A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101596490A (en) * | 2008-06-05 | 2009-12-09 | 中国矿业大学(北京) | A kind of dried, the integrated ore-dressing technique of wet method of diatomite ore |
| CN101596490B (en) * | 2008-06-05 | 2013-03-13 | 中国矿业大学(北京) | Dry and wet method integration mineral processing technology for diatomite ore |
| CN101845240A (en) * | 2010-04-29 | 2010-09-29 | 南通宝聚颜料有限公司 | Manufacturing method of granular iron oxide black pigment and double-roller grinder for realizing same |
| CN101845240B (en) * | 2010-04-29 | 2012-10-03 | 南通宝聚颜料有限公司 | Manufacturing method of granular iron oxide black pigment and double-roller grinder for realizing same |
| CN103213994A (en) * | 2013-04-29 | 2013-07-24 | 嵊州宝钒硅藻土有限公司 | Kieselguhr calcining device and method |
| CN103213994B (en) * | 2013-04-29 | 2015-08-12 | 嵊州宝钒硅藻土有限公司 | A kind of diatomite calcination device and method for calcinating |
| CN107300317A (en) * | 2017-06-20 | 2017-10-27 | 嵊州宝钒硅藻土有限公司 | A kind of method of huge revolving kiln system and its calcined diatomite |
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