CN102003871B - Tower drier for powdery wet materials - Google Patents
Tower drier for powdery wet materials Download PDFInfo
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- CN102003871B CN102003871B CN 201010545983 CN201010545983A CN102003871B CN 102003871 B CN102003871 B CN 102003871B CN 201010545983 CN201010545983 CN 201010545983 CN 201010545983 A CN201010545983 A CN 201010545983A CN 102003871 B CN102003871 B CN 102003871B
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Abstract
The invention discloses a tower drier for powdery wet materials, which comprises an upright hollow cylinder, wherein a hot air channel is arranged in the hollow cylinder; more than two material damming rings are axially arranged in the hollow cylinder; a feed inlet is arranged on the top of the hollow cylinder; a conical base is arranged on the bottom of the hollow cylinder; a discharging port is arranged on the bottom of the conical base; sieve meshes which pass through the inner and outer walls for screening powdery materials are arranged on the side wall of the conical base; a powdery material collecting groove for collecting the powdery materials is arranged on the external periphery of the conical base; and a powdery material outlet is arranged on the bottom of the powdery material collecting groove. The tower drier for powdery wet materials is simple in structure and convenient in manufacturing. The dry powdery materials, the solid dry medium particles and the wet powdery materials can be automatically screened just by improving the existing large solid particle tower drier for the dry fuels and raw materials. The investment of equipment is lowered, the recovering cost of powdery materials is lowered, and the burden of enterprise is relieved.
Description
Technical field
The present invention relates to a kind of drying materials device, definite saying so relates to a kind of tower drier that is used to dry the powdery wet feed.
Background technology
Can produce amounts of dust in thermal power generation or the manufacture of cement,, can cause great pollution environment on every side if dust directly is discharged in the atmosphere without reclaiming.Because the dust that produces in thermal power generation or the manufacture of cement has higher temperature, therefore in collection process, need the water spray humidification, dust is contained reclaim again after water for cooling forms wet feed, handle through drier again after the recovery.Because the very little and lighter weight of particle diameter of dust, common dryer can't be applied to the oven dry of dust.What be used at present that the dryer of dust oven dry adopts is drum-type structure, sends into vapours when dust rolls and dry in cylinder.But the technology of China's existing drum-type dust dryer is also very immature; When adopting this drying machine drying dust; Dust is carried by vapours and can cause dust to fly away everywhere, and is very big to the environmental pollution of periphery, and the manufacturing cost and use cost of this dryer is higher; The cost that makes dust reclaim is higher, is unfavorable for promoting the use of.
At present; Be equipped with the tower drier of solid particles such as being used for dry fuel and raw material in thermal power plant or the cement manufacturing enterprise more; Like the patent No. of applicant's earlier application is that the Chinese invention patent specification of ZL200510017518.7 discloses a kind of tower drier; This dryer mainly is made up of the hollow cylindrical shell of vertical setting, thermal source and the material conveying mechanism that is connected with the cylindrical shell hollow bulb; The inner shaft of hollow cylindrical shell to be disposed with a plurality of collets; Make to form inside and outside two concentric cavitys in the cylindrical shell, thermal source is arranged in the cavity at cylindrical shell center, when material when the charging aperture at cylindrical shell top enters into barrel by the collet restriction and fall from the periphery of collet and the external cavity between the cylinder inboard wall; Leave downward opening gap between the adjacent collet and form the hot blast import; Be respectively arranged with downward-sloping striker plate to reduce the falling speed of material at the interval between corresponding each adjacent collet on the cylinder inboard wall, prolong drying time, correspondence offers air outlet on the barrel of each striker plate bottom.If can use this tower drier that the powdery wet feed is carried out drying, equipment is fully used, then help minimizing equipment input, reduce the cost recovery of granular material.But since powder have when moistening viscosity big and when drying more liquid characteristics; Make this vertical drying device can't be applied to this comparatively meticulous little shape granular material of dust; Otherwise when the water content of powder was big, it was sticky in easily and stops up hot-air channel and drying channel on cylinder inboard wall and the collet; The powder of oven dry is because particle diameter is very little, and it flows in drying channel everywhere, flows out hot blast import between adjacent collet or the air outlet easily, stops up hot-air channel, causes the dryer fault to use.
Summary of the invention
The objective of the invention is: provide a kind of powdery wet feed to use tower drier, to solve the problem that existing tower drier can not be applied to the oven dry of powdery wet feed.
Powdery wet feed of the present invention with the technical scheme of tower drier is: a kind of powdery wet feed is used tower drier; Comprise the hollow cylindrical shell of vertical setting, be provided with hot-air channel in the hollow cylindrical shell, be axially arranged with plural collet in the hollow cylindrical shell; Top at hollow cylindrical shell is provided with charging aperture; The bottom of hollow cylindrical shell is provided with at the bottom of the conically shaped, and the bottom at the bottom of conically shaped is provided with discharging opening, on the sidewall at the bottom of the said conically shaped, offers the sieve aperture that runs through the internal and external walls face, is used to screen granular material; Bottom at the bottom of said conically shaped is provided with the powder material collecting tank that is used to collect granular material, and the bottom land of material collecting tank is provided with the powder mouth that gathers materials.
The outside wall surface of the cell wall of described powder material collecting tank at the bottom of the conically shaped extended and is provided with, and is and tapered sleeve structure coaxial at the bottom of the conically shaped.
The sealing of the cell wall of described powder material collecting tank and the outside wall surface at the bottom of the conically shaped is connected, the ring cavity of formation taper between the cell wall of powder material collecting tank and the outside wall surface at the bottom of the conically shaped.
Bottom at said discharging opening is provided with circulating conveyor, and this circulating conveyor is connected with said charging aperture through feeding device, is provided with the powder transport in the said powder mouthful bottom that gathers materials.
The present invention in use with the powdery wet feed with send into after the solid drying media particle mixes in the dryer dry; When the compound after the oven dry utilizes self gravitation to drop at the bottom of the conically shaped; Dry powder is screened through the sieve aperture on the conically shaped downside wall; The dry powder that sifts out is collected automatic drying and the screening that has realized compound by material collecting tank, and solid drying media particle and undried powder are sent to secondary drying, and it is simple in structure, easily manufactured; Can on the basis of the existing tower drier that is used for large-sized solid particles such as dry fuel and raw material, transform; Lower the input of equipment, alleviated the cost recovery of powder, reduced the burden of enterprise.
Description of drawings
Fig. 1 is the structural representation of powdery wet feed of the present invention with the tower drier specific embodiment.
The specific embodiment
Powdery wet feed of the present invention is as shown in Figure 1 with the specific embodiment of tower drier; It mainly comprises the hollow cylindrical shell 1 of vertical setting; Be provided with charging aperture 2 at the top of hollow cylindrical shell 1, the inner shaft of hollow cylindrical shell 1 to be disposed with a plurality of collets 3, each collet 3 center surrounds hot-air channel; Between each collet 3 and hollow cylindrical shell 1, form the drying channel of annular; Leave between the two adjacent collets 3 and form the hot-air mouth that is communicated with hot-air channel and drying channel at interval, on the outer wall of the bottom of hollow cylindrical shell 1, be provided with the air inlet 4 that is communicated with, is used to be connected thermal source with hot-air channel, after hot blast enters into hot-air channel by air inlet 4; By being blown into drying channel in the interval between adjacent two collets 3, the material that drying channel is crossed in convection current is dried.Flow for strengthening hot blast, improve drying efficiency, in the present embodiment; The barrel of hollow cylindrical shell 1 is a sandwich; Leave between its inside and outside barrel at interval and form the air-out passage, be provided with the air outlet 6 that is communicated with the barrel interlayer at the interval between the corresponding respectively adjacent collet 3 on the inner tube wall 5, outer tube wall is provided with the suction opeing 7 that is used to connect air exhauster; Suction opeing 7 connects air exhauster and through air-out passage and air outlet 6 hot blast in the drying channel is extracted out; Be that hot blast flows, thereby can strengthen drying effect, improve drying efficiency.For reducing the flowing velocity of material in drying channel; Above also corresponding each air outlet 6 on the inner tube wall 5, be respectively arranged with downward-sloping striker plate, make drying channel form the path of bending from top to bottom, extended in the path that streams is crossed; Thereby prolonged the flowing time of material in drying channel; Reduce the translational speed of material, the time that makes material have abundance contacts with hot blast, has improved drying efficiency.At the bottom of the bottom of hollow cylindrical shell 1 is provided with conically shaped 8; 8 bottom is provided with discharging opening 10 at the bottom of the conically shaped; What gather on 8 the sidewall at the bottom of the conically shaped offers the sieve aperture that runs through the internal and external walls face; 8 bottom is provided with and is used for admitting the powder material collecting tank 9 that sieves the powder that comes out from sieve aperture at the bottom of conically shaped, and the bottom of powder material collecting tank 9 is provided with the mouth 11 that gathers materials.
During use; Earlier the powdery wet feed of retrieving is sent in the mixer 17 with the solid drying media particle after to be unit with the volume according to the mixing ratio of 1:1 to 1:3 mix through feeding machine 16; Send into through feeding device 15 in the charging aperture 2 at dryer top; The solid drying media particle is sweeping along the powdery wet feed to lean on free-falling in the annular drying channel that self gravitation forms between the inwall 5 of collet 3 and hollow cylindrical shell 1; Hot blast blows out through air inlet 4 and the interval of hot-air channel between adjacent two collets 3 compound is dried, and suction opeing 7 connects air exhauster, hot blast is pumped out the hot blast generation is flowed from air outlet 6.Compound is stopped the reduction falling speed by the striker plate that is provided with on the hollow cylinder inboard wall 5 in dropping process; Compound oven dry back by annular drying channel be pooled at the bottom of the conically shaped 8 and at the bottom of the conically shaped 8 inwall to discharging opening 10 landings; Compound is in the landing process; The powder of having dried is fallen in the powder material collecting tank 9 by sieve from sieve aperture because particle diameter is minimum, flows out from the outlet 11 of gathering materials and sends into the material-gathering device through powder conveying mechanism 14; And the powder because moisture of oven dry is not sticked on the surface of solid drying media particle more greatly or is glued into little group; Can't from sieve aperture, sift out and directly be slipped in the discharging opening 10, be recycled transport 13 and send back in the agitating device 17 to send back in the hollow cylindrical shell 1 and carry out secondary drying by feeding device 15.
Because the granular material lighter weight after the oven dry; Then formed airborne dust by carried away by air movement easily if any air current flow; Cause the pollution of air, so the cell wall of powder material collecting tank 98 outside wall surface at the bottom of the conically shaped is extended and is provided with and sealing is connected and forms the tapered sleeve structure that is located at one heart at the bottom of the conically shaped in the present embodiment.The material the most cheap, that cost is minimum of the solid drying media particle that uses among the present invention is stone, secondly also can adopt metal or glassware or other can tolerate the solid granular material of certain high temperature.
This method with the powdery wet feed with send into simultaneously after the solid drying media particle mixes in the dryer dry; The solid drying media particle can play adhesion, carry the effect that the powdery wet feed falls on the one hand, prevents that the powdery wet feed from sticking on hollow cylinder inboard wall or the collet; On the other hand, for mobile bigger powder after the drying, the solid drying media particle can also play barrier effect, prevents the mobile hot-air channel that stops up of dried powder everywhere; Simultaneously; Self also can adsorb heat the solid drying media particle, not only can play oven dry and preheating effect to the powdery wet feed that adheres on its outer surface, and can be through collision each other, extruding in hollow cylindrical shell; Prevent that the adhesion of powdery wet feed from becoming bulk; The powdery wet feed that adhesion is bulk carries out fragmentation, improves the drying efficiency of powdery wet feed, reduces the energy resource consumption of dryer.
What [0015] adopt in the tower drier of the present invention is to connect external thermal source through air inlet; Its also can be in hollow cylindrical shell integrated installation fluidized bed furnace; Utilize and self produce hot blast and dry; This all is that those skilled in the art is easy to and will expects, all within protection scope of the present invention.
Claims (3)
1. a powdery wet feed is used tower drier, comprises the hollow cylindrical shell of vertical setting, is provided with hot-air channel in the hollow cylindrical shell; Be axially arranged with plural collet in the hollow cylindrical shell; Top at hollow cylindrical shell is provided with charging aperture, and the bottom of hollow cylindrical shell is provided with at the bottom of the conically shaped, and the bottom at the bottom of conically shaped is provided with discharging opening; It is characterized in that; On the sidewall at the bottom of the said conically shaped, offer the sieve aperture that runs through the internal and external walls face, is used to screen granular material, the bottom at the bottom of said conically shaped is provided with the powder material collecting tank that is used to collect granular material, and the outside wall surface of the cell wall of said powder material collecting tank at the bottom of the conically shaped extended and be provided with; Be and tapered sleeve structure coaxial at the bottom of the conically shaped, be provided with the powder mouth that gathers materials at the bottom land of said powder material collecting tank.
2. powdery wet feed according to claim 1 is used tower drier, it is characterized in that, the sealing of the cell wall of described powder material collecting tank and the outside wall surface at the bottom of the conically shaped is connected, the ring cavity of formation taper between the cell wall of powder material collecting tank and the outside wall surface at the bottom of the conically shaped.
3. powdery wet feed according to claim 1 and 2 is used tower drier; It is characterized in that; Bottom at said discharging opening is provided with circulating conveyor, and this circulating conveyor is connected with said charging aperture through feeding device, is provided with the powder transport in the said powder mouthful bottom that gathers materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010545983 CN102003871B (en) | 2010-11-16 | 2010-11-16 | Tower drier for powdery wet materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010545983 CN102003871B (en) | 2010-11-16 | 2010-11-16 | Tower drier for powdery wet materials |
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| Publication Number | Publication Date |
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| CN102003871A CN102003871A (en) | 2011-04-06 |
| CN102003871B true CN102003871B (en) | 2012-12-26 |
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| CN 201010545983 Active CN102003871B (en) | 2010-11-16 | 2010-11-16 | Tower drier for powdery wet materials |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102128542B (en) * | 2011-04-18 | 2012-08-22 | 深圳市圳驰科技有限公司 | Device and method for refluxing and drying wet aggregate in production process of dry-mixed mortar |
| CN102865719B (en) * | 2012-07-20 | 2014-09-17 | 贵州大自然科技有限公司 | Method and device for drying monofilaments |
| CN107388734A (en) * | 2017-08-04 | 2017-11-24 | 镇江虎瑞生物科技有限公司 | A kind of furnace drying method of rhizoma Gastrodiae |
| CN112856935A (en) * | 2021-03-18 | 2021-05-28 | 河北皓凯农业机械有限公司 | Air-suction type giant intelligent grain dryer |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT363906B (en) * | 1979-10-15 | 1981-09-10 | Voest Alpine Ag | DEVICE FOR DRYING AND CONVERTING ORGANIC SUBSTANCES, E.g. BROWN COAL |
| FR2612617B1 (en) * | 1987-03-16 | 1992-07-10 | Bergounhon Rene | OVEN TO DEHYDRATE POWDER, SAND AND AGGREGATES |
| CN2071316U (en) * | 1988-08-26 | 1991-02-13 | 华南农业大学 | Cooling and drying machine for granular feedstuff |
| CN2071773U (en) * | 1990-04-09 | 1991-02-20 | 常洪甡 | Grain dryer with dual taper-face structure |
| JPH07190618A (en) * | 1993-12-27 | 1995-07-28 | Matsui Mfg Co | Drying apparatus for powder/grains |
| CN100394133C (en) * | 2005-04-15 | 2008-06-11 | 唐德顺 | Vertical dryer |
| CN201014908Y (en) * | 2007-03-28 | 2008-01-30 | 哈尔滨思创电站成套设备制造厂 | Circular cylinder type inside and outside circulation drying machine |
| CN201858845U (en) * | 2010-11-16 | 2011-06-08 | 河南省德耀机械制造有限公司 | Vertical type dryer for powdery wet material |
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Owner name: HENAN DEYAO ENERGY SAVING TECHNOLOGY CO., LTD. Free format text: FORMER NAME: HENAN DEYAO MACHINERY MFG CO., LTD. |
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Address after: 453003 torch garden, hi tech Zone, Henan, Xinxiang Patentee after: HENAN DEYAO ENERGY SAVING SCIENCE & TECHNOLOGY CO.,LTD. Address before: 453003 torch garden, hi tech Zone, Hongqi District, Henan, Xinxiang Patentee before: HENAN DEYAO MECHINERY BUILDING Co.,Ltd. |
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Address after: 453003 torch garden, hi tech Zone, Henan, Xinxiang Patentee after: HENAN DEYAO ENERGY SAVING TECHNOLOGY CO.,LTD. Address before: 453003 torch garden, hi tech Zone, Henan, Xinxiang Patentee before: HENAN DEYAO ENERGY SAVING SCIENCE & TECHNOLOGY CO.,LTD. |
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Address after: Room 101, Building 1, No.1 Daye Road, Yunhe Street, Linping District, Hangzhou City, Zhejiang Province, 311103 Patentee after: Zhejiang Deyao Energy Saving Technology Co.,Ltd. Address before: 453003 Torch Park, High tech Zone, Xinxiang City, Henan Province Patentee before: HENAN DEYAO ENERGY SAVING TECHNOLOGY CO.,LTD. |
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