CN104764345A - Drying or cooling method and apparatus for composite fertilizer - Google Patents
Drying or cooling method and apparatus for composite fertilizer Download PDFInfo
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- CN104764345A CN104764345A CN201410845543.3A CN201410845543A CN104764345A CN 104764345 A CN104764345 A CN 104764345A CN 201410845543 A CN201410845543 A CN 201410845543A CN 104764345 A CN104764345 A CN 104764345A
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Abstract
The invention provides a drying or cooling method and apparatus for a composite fertilizer. According to the invention, a composite fertilizer material rotates together with rotating air flow from the tangential direction of a rotating cylinder in the rotating cylinder, and is discharged through a discharge outlet after sufficient contact and heat exchange, so the purposes of drying and cooling are achieved. The apparatus provided by the invention is internally provided with a plurality of breathable rubber slab inner liners, so the problem of scabbing of the material in the rotating cylinder is effectively overcome, and the operation cycle of the drying apparatus is prolonged.
Description
Technical field
The present invention relates to the dry or cooling means of a kind of composite fertilizer and equipment, a kind of method and apparatus carrying out preventing material from stammering in drying or cooling procedure to composite fertilizer's solid material, belongs to chemical fertilizer technical field specifically.
Background technology
The raw material that composite heat transfer process uses, distinguish by feed states, have solid feed and liquid material, wherein solid feed is generally powder.The object of composite heat transfer is that after being mixed by the raw material containing Different Nutrients, make the particle with certain particle size, granular fertilizer just facilitates fertilizing operation.The production of composite fertilizer generally comprises following process, namely at mixing system, solid powder raw material is pressed required nutrients ratio mixture, at granulating system, mixed material is prepared into particle, at drying system, the particle containing moisture is carried out drying, sieve particle at screening system, too small particle returns granulating system, returns granulating system after excessive Particle Breakage, the particle that granularity is suitable enters cooling system and cools, and after cooled particle inspection, packaging is complex fertilizer product.Leave the air-flow of rotating cylinder by emptying after cyclone separator recovery solid material.The present invention relates to drying wherein and cooling technology, rotary drying or cooling are the common methods of composite heat transfer process, its process utilizes thermal current or cold airflow fully to contact with solid composite fertilizer material to be processed, and solid composite fertilizer heating material is dry or cool.Composite fertilizer's revolving drier of prior art or cooler construction are substantially identical, flight structure is had inside rotating cylinder, along with the rotation of rotating cylinder in work, flight makes material fall after the solid material in rotating cylinder is taken up certain altitude, if heating process, what pass through in rotating cylinder is hot-air, if cooling procedure, what pass through in rotating cylinder is cold air.Cold air or hot-air are by cooling the material fallen from flight or heating during rotating cylinder space, rotating cylinder with flight can make air fully contact with material, to the heating of material or cooling effect better, so be equipment the most frequently used in composite heat transfer with the rotating cylinder of flight.Owing to being the material dropping process and air flow contacts taken up at flight, so traditional rotating cylinder air inlet enters with axial at the end face of feed end material feeding box, air-flow straight-line pass cylindrical shell, the side that gas outlet is generally located at discharge end feed box connects with radial direction, and the air-flow leaving cylindrical shell flows out with radial direction.
This rotating cylinder with flight is when the sticking material of processing belt, viscous material is easily bonded in the surface of flight, stammer gradually, after a while will be more and more thicker, material can not be taken up by the flight after stammerer, if flight can not take up material, air-flow just fully can not contact with solid material, this can have a strong impact on the heating of material or the effect of cooling, therefore, when the sticking material of the rotating cylinder process band that use is traditional, can stammer at short notice, need cleaning of often stopping, the continuous cycle of operation is not long, causing production can not be continuous, impact is produced, increase direct labor's labour intensity.
The application number proposed by applicant Guangxi new direction chemical industry Co., Ltd: CN201220525071.X, the patent application of " composite fertilizer's drying machine " by name, it solves the problem that the existing composite fertilizer drying machine thermal efficiency is not high.This composite fertilizer's drying machine comprises cylindrical shell and is arranged on the flight on cylinder inboard wall, described flight is along the axially layout of cylindrical shell, described flight has three kinds of angles, be respectively 0 degree of flight, 90 degree of flights and 135 degree of flights, along the circumference clockwise direction of cylindrical shell, described 0 degree of flight, 90 degree of flights and 135 degree of flights are arranged successively, and described 0 degree of flight, 90 degree of flights and 135 degree of flights form a flight group, described cylindrical shell inwall circumferentially, there are at least two group flight groups.According to composite fertilizer of the present invention drying machine, adopt the flight of three kinds of angles, the thermal efficiency of drying machine is improved.
Composite fertilizer disclosed herein drying equipment, just improves in the flight angle of traditional rotating cylinder, and the process to the sticking solid material of band is not considered in this improvement, does not have the problem considering to prevent viscous solid material from stammering on flight.
Summary of the invention
In order to improve the heat exchange efficiency of material and prevent material from scabbing inside rotating cylinder, the present invention proposes the method and apparatus that a kind of composite fertilizer is dry or cool, effectively raise the cycle of operation of drying equipment.
Dry or the cooling means of a kind of composite fertilizer of the present invention and equipment, described method comprises: material rotates in revolver drier or cooler, fully contact with the swirling eddy in rotating cylinder, drying or cooling are carried out in heat exchange repeatedly, again granulation packaging is carried out in drying or cooled material, it is characterized in that: air-flow enters rotating cylinder with tangential direction, swirling eddy is formed in rotating cylinder, the air-flow entering rotating cylinder rotates while to exit movement, the air-flow rotated drives solid material with flow rotation, repeatedly contact with solid material through air-flow, heat exchange repeatedly, the final material processed leaves rotating cylinder from the material outlet of rotating cylinder port of export feed box bottom, the air-flow arriving the rotating cylinder port of export leaves rotating cylinder from the gas outlet that feed box is connected with tangent line, leave the air-flow of rotating cylinder by leaving system after cyclone separator recovery solid material.
Described composite fertilizer's drying or cooling means, is characterized in that the direction of swirling eddy is consistent with the rotation direction of rotating cylinder.
Described a kind of composite fertilizer drying or cooling device, comprise rotating cylinder 1, rotating cylinder two ends have material feeding box 2 and feed box 3 respectively, charging aperture 4, be located at material feeding box upper end and have the feed conduit 5 solid material being introduced rotating cylinder, discharging opening 6 is located at the downside of feed box, solid material flows to outside by gravity, cylinder sidewall has passage 7, it is characterized in that: there is the air inlet pipe 8 connected with tangential direction the side of material feeding box, there is the escape pipe 9 connected with tangential direction the side of feed box, and escape pipe direction and air inlet pipe direction are forward.Type of respiration rubber slab liner 10 is had inside rotating cylinder.
Described drying or cooling device, it is characterized in that rotating cylinder wall being installed vertically many breathes rubber slab, the length of rubber slab is identical with rotating cylinder inner length, and the surrounding of every block rubber slab is securely fixed in drum wall, ensure tight between rubber and rotating cylinder wall, do not leak material, gas leakage.
Accompanying drawing explanation
Fig. 1 is the schematic cross-section of composite fertilizer's drying or the cooling device that the present invention relates to.
Fig. 2 is the appearance schematic diagram of composite fertilizer's drying or the cooling device that the present invention relates to.
Detailed description of the invention
Make in air-flow and material fully contact, present invention utilizes the phenomenon that material rotates with the rotation of rotating cylinder in rotating cylinder, air-flow is allowed to flow fast along rotation direction, the circumference that part material web in rotating cylinder moves up along rotating cylinder is rotated, air-flow fully with is repeatedly contacted with material, reaches the drying to material or cooling object.
The improvement that method is done is that air flow inlet is connected to material feeding box side with tangential direction, air-flow is allowed to enter rotating cylinder with tangential direction, air-flow in rotating cylinder is forced to pass through rotating cylinder to rotate the form of advancing like this, rotating cylinder tail end has the gas outlet be connected to tangential direction on feed box, and gas outlet and air inlet are forward, the air-flow completing heat exchange leaves rotating cylinder at rotating cylinder tail end with tangential direction.Air-flow adds the touch opportunity of air-flow and solid material in a rotative pattern by rotating cylinder, keep the direction of air-flow identical with rotating cylinder direction of rotation, active force from rotating cylinder is consistent with the action direction of the active force from air-flow to solid material, after two active force superpositions, material will blow floating along rotating cylinder direction of rotation by air-flow, air-flow is fully contacted with material, has both reached the object to dry materials or cooling, received again the effect that material is not stammered in rotating cylinder.
The present invention is on the substantially constant basis of original composite heat transfer system to the improvement that equipment does, corresponding change is done to the barrel sections of composite fertilizer's drying system, specifically connect air inlet pipe in the material feeding box side of traditional drum-type composite fertilizer drier with tangential direction, also connect escape pipe with tangential direction in the side of feed box, the direction of the direction of escape pipe and air inlet pipe must be kept forward, change original solid material feeder pipe into pipe by square tube, can gas-flow resistance be reduced, change original metal flight into type of respiration rubber slab, even if the sticking material of tool also can not be bonded on the rubber slab that flexible and bending direction constantly changes, gravitate, along with drum rotation, the rubber slab being in below can be bent downwardly and be attached in drum wall, the rubber slab being in top is also bent downwardly, hang is formed above rotating cylinder, rubber slab bending direction checker, even if viscous material also can not be grown up at its surface stammerer, shortly can come off from rubber slab and fall down, can be crushed by material, do not have crushed bar block can be sized out to follow-up screening operation yet, be broken after crusher machine and turn back to the granulation again of compound fertilizer granulating system.
Inside rotating cylinder device, install many vertically breathe rubber slab, the length of rubber slab is identical with rotating cylinder inner length, and the surrounding of every block rubber slab is securely fixed in drum wall, and ensure tight between rubber and rotating cylinder wall, requirement can not be leaked material and can not be leaked gas.Smooth and easy for ensureing rubber slab respiratory movement, rotating cylinder wall leaves spiracle, and this drying or cooling system can use traditional induced draught system.
The composite fertilizer's material using drier of the present invention larger to a kind of viscosity carries out drying, and dried composite fertilizer water content is qualified, the most important thing is that the continuous cycle of operation of this drier lengthens.During traditional compound fertilizer larger with the same viscosity of drier process of flight, continuous operating time is 7 days, and stammerer is serious, and clear up consumption time of stammering is 8 hours at every turn.After using method and apparatus of the present invention instead, when processing same viscous material, continuous operating time is more than 20 days, only has rubber slab junction to have slight stammerer, and each cleaning stammerer consumption time was less than 2 hours.
If carry out drying process to solid composite fertilizer material, in rotating cylinder, pass into hot-air, with the air-flow with heat, drying is carried out to solid composite fertilizer material.If carry out cooling processing to solid composite fertilizer material, then in revolver drier, pass into cold air, the air-flow lower by temperature cools solid composite fertilizer material.
Utilize the technical program, utilize equipment of the present invention namely to may be used for composite fertilizer's drying system and also may be used for composite fertilizer's cooling system, both reached the object of effective heat exchange, also have received the effect preventing from stammering inside rotating cylinder.
Claims (4)
1. composite fertilizer's drying or cooling means, described method comprises: material rotates in revolver drier or cooler, fully contact with the swirling eddy in rotating cylinder, drying or cooling are carried out in heat exchange repeatedly, again granulation packaging is carried out in drying or cooled material, it is characterized in that: air-flow enters rotating cylinder with tangential direction, swirling eddy is formed in rotating cylinder, the air-flow entering rotating cylinder rotates while to exit movement, the air-flow rotated drives solid material with flow rotation, repeatedly contact with solid material through air-flow, heat exchange repeatedly, the final material processed leaves rotating cylinder from the material outlet of rotating cylinder port of export feed box bottom, the air-flow arriving the rotating cylinder port of export leaves rotating cylinder from the gas outlet that feed box is connected with tangent line, leave the air-flow of rotating cylinder by leaving system after cyclone separator recovery solid material.
2. composite fertilizer as claimed in claim 1 drying or cooling means, is characterized in that the direction of swirling eddy is consistent with the rotation direction of rotating cylinder.
3. a kind of composite fertilizer as claimed in claim 1 drying or cooling device, comprise rotating cylinder (1), rotating cylinder two ends have material feeding box (2) and feed box (3) respectively, charging aperture (4) is located at material feeding box upper end and has the feed conduit (5) solid material being introduced rotating cylinder, discharging opening (6) is located at the downside of feed box, solid material flows to outside by gravity, cylinder sidewall has passage (7), it is characterized in that: there is the air inlet pipe (8) connected with tangential direction the side of material feeding box, there is the escape pipe (9) connected with tangential direction the side of feed box, escape pipe direction and air inlet pipe direction are forward, type of respiration rubber slab liner (10) is had inside rotating cylinder.
4. dry or cooling device as claimed in claim 3, it is characterized in that rotating cylinder wall being installed vertically many breathes rubber slab, the length of rubber slab is identical with rotating cylinder inner length, the surrounding of every block rubber slab is securely fixed in drum wall, ensure tight between rubber and rotating cylinder wall, do not leak material, gas leakage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410845543.3A CN104764345A (en) | 2014-12-31 | 2014-12-31 | Drying or cooling method and apparatus for composite fertilizer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410845543.3A CN104764345A (en) | 2014-12-31 | 2014-12-31 | Drying or cooling method and apparatus for composite fertilizer |
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| CN104764345A true CN104764345A (en) | 2015-07-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410845543.3A Pending CN104764345A (en) | 2014-12-31 | 2014-12-31 | Drying or cooling method and apparatus for composite fertilizer |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110040530A (en) * | 2019-06-03 | 2019-07-23 | 山东天承矿业有限公司 | A kind of dry particl refrigerating device for materials |
| WO2020124164A1 (en) * | 2018-12-20 | 2020-06-25 | Pelleton Global Renewables Ltd. | Pellet processing drum |
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| GB843705A (en) * | 1957-04-05 | 1960-08-10 | Buettner Werke Ag | A drier, more particularly for material of low specific gravity |
| CN2110837U (en) * | 1991-11-26 | 1992-07-22 | 东北工学院 | Horizontal centrifugal airstream drier |
| CN201454489U (en) * | 2009-07-21 | 2010-05-12 | 山东旭洋机械集团股份有限公司 | Roller pelletizer |
| CN202166293U (en) * | 2011-05-24 | 2012-03-14 | 常州健达干燥设备有限公司 | Horizontal type spiral flow drying machine |
| CN202480241U (en) * | 2012-02-28 | 2012-10-10 | 云南新龙矿物质饲料有限公司 | Phosphogypsum modifying and mixing machine |
| CN203100475U (en) * | 2012-12-21 | 2013-07-31 | 安徽兴隆肥业科技有限责任公司 | Cooling machine for producing chemical fertilizer |
| CN203100384U (en) * | 2013-02-01 | 2013-07-31 | 济南罗门哈斯生物技术有限公司 | Whirlwind pneumatic dryer with amino acid water soluble fertilizers |
| CN203642657U (en) * | 2013-12-13 | 2014-06-11 | 吕瑞新 | Air supply roller of drying and cooling machine |
| CN203862208U (en) * | 2014-03-18 | 2014-10-08 | 杭州萧山协庆化工有限公司 | Drum granulating machine for organic fertilizer |
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2014
- 2014-12-31 CN CN201410845543.3A patent/CN104764345A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB843705A (en) * | 1957-04-05 | 1960-08-10 | Buettner Werke Ag | A drier, more particularly for material of low specific gravity |
| CN2110837U (en) * | 1991-11-26 | 1992-07-22 | 东北工学院 | Horizontal centrifugal airstream drier |
| CN201454489U (en) * | 2009-07-21 | 2010-05-12 | 山东旭洋机械集团股份有限公司 | Roller pelletizer |
| CN202166293U (en) * | 2011-05-24 | 2012-03-14 | 常州健达干燥设备有限公司 | Horizontal type spiral flow drying machine |
| CN202480241U (en) * | 2012-02-28 | 2012-10-10 | 云南新龙矿物质饲料有限公司 | Phosphogypsum modifying and mixing machine |
| CN203100475U (en) * | 2012-12-21 | 2013-07-31 | 安徽兴隆肥业科技有限责任公司 | Cooling machine for producing chemical fertilizer |
| CN203100384U (en) * | 2013-02-01 | 2013-07-31 | 济南罗门哈斯生物技术有限公司 | Whirlwind pneumatic dryer with amino acid water soluble fertilizers |
| CN203642657U (en) * | 2013-12-13 | 2014-06-11 | 吕瑞新 | Air supply roller of drying and cooling machine |
| CN203862208U (en) * | 2014-03-18 | 2014-10-08 | 杭州萧山协庆化工有限公司 | Drum granulating machine for organic fertilizer |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020124164A1 (en) * | 2018-12-20 | 2020-06-25 | Pelleton Global Renewables Ltd. | Pellet processing drum |
| EP3899390A4 (en) * | 2018-12-20 | 2022-09-07 | Pelleton Global Renewables Ltd. | Pellet processing drum |
| CN110040530A (en) * | 2019-06-03 | 2019-07-23 | 山东天承矿业有限公司 | A kind of dry particl refrigerating device for materials |
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Effective date of registration: 20180522 Address after: 124021 Hongqi Street, Shuangtaizi District, Panjin, Liaoning Applicant after: Northern Huajin Formosan Union Chemical Corporation Address before: 124021 No. 415 Hebei Road, Shuangtaizi District, Panjin, Liaoning Applicant before: North Hua Jin Chemical Industry Group Co., Ltd |
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Application publication date: 20150708 |