CN1749222A - Heating mixer for producing granular compound fertilizer - Google Patents
Heating mixer for producing granular compound fertilizer Download PDFInfo
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- CN1749222A CN1749222A CN 200510060037 CN200510060037A CN1749222A CN 1749222 A CN1749222 A CN 1749222A CN 200510060037 CN200510060037 CN 200510060037 CN 200510060037 A CN200510060037 A CN 200510060037A CN 1749222 A CN1749222 A CN 1749222A
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Abstract
The heating mixer for producing granular compound fertilizer in prilling tower includes a mixer body, a stirrer mounted to the mouth of the mixer body and rotated by motor, and a heater connected to the mixer body, and the heater includes horizontal heating coil pipes and vertical heating coil pipes. The heating mixer can prevent heated powder from caking to jam pelletizing nozzle and make the production process continuous and stable.
Description
Technical field
The present invention relates to composite fertilizer granulation process equipment, particularly relate to a kind of heating mixer of producing granular composite fertilizer using tower pelletizing.
Background technology
In the technological process of existing producing granular composite fertilizer using tower pelletizing, raw material such as monoammonium phosphate, Repone K or vitriolate of tartar and additive (hereinafter to be referred as powder) must use through entering flow process after the heating.The heating installation of tradition use at present mainly contains hollow blade well heater and revolving cylinder heater.Its principle of hollow blade well heater is that high-temperature steam heats (being heat exchange) to hollow blade and cell body, and then removes to heat powder by hollow blade and the cell body after the heating, reaches the temperature that improves powder.Its principle of revolving cylinder heater is passed into the powder that turns round in the heater with the high-temperature furnace gas of roasting kiln, and powder is carried out direct heating, reaches the temperature that improves powder.More than in two kinds of heating installations, solid hollow paddle well heater is solid-heat transfer to the heat transfer of powder, its thermo-efficiency is low; The revolving cylinder heater is gas-solid heat transfer to the heat transfer of powder, and because of high-temperature furnace gas residence time weak point in revolving cylinder, its thermo-efficiency is also lower; Simultaneously above two equipment have common characteristics, promptly cause easily to conduct heat inhomogeneously, local powder is crossed formed behind the heat fusing and lump.These cakings that mixed slurry has when mixed slurry enters the tablets press air prilling, cause the tablets press shower nozzle to stop up, and make the operation that the production granulation can not continous-stable.
Summary of the invention
The present invention is intended to overcome the defective that the well heater of existing producing granular composite fertilizer using tower pelletizing in use exists, and a kind of heating mixer of producing granular composite fertilizer using tower pelletizing is provided.
The present invention is different with the existing well heater that uses, and it not only has heating and also has mixing effect simultaneously.Apparatus of the present invention adopt powder to be added by powder inlet B, and urea melt is added by urea melt inlet A, is discharged by material E.Heating medium is entered the spiral heating coil pipe of internal heater by C, discharge by D, the spiral pipe of internal heater is spring shape spiraling from bottom to top, diametric(al) at body is furnished with multi-turn, on short transverse, there is multilayer to make to add the heat energy that makes medium and can carries out material in the heat exchange heating tank rapidly, simultaneously in order further to improve heats, well heater is well heater chuck and upflow tube chuck outside well heater is provided with, because well heater makes and adds speeding up of thermal material inside and outside being provided with, the while multilayer, the layout of multi-circle spiral flow heating coil makes the whole rate of heating of well heater fast, homogeneous heating has avoided the local superheating of material to produce caking phenomenon.In addition, heating unit of the present invention has also adopted at organism bottom and has connected the upflow tube device, the employing of this device can make material from top to bottom must discharge through the slip after mixing, guaranteed that material becomes the homogeneity of slip, avoid half-cooked, prevent the obstruction of prilling spry, because well heater is provided with whipping appts, powder that enters and melt become slip and discharge after the whipping appts thorough mixing is even in heating, because powder is that heating mixes in liquid phase, therefore mixes and conduct heat evenly.
Heating mixer of the present invention can adopt for example following specific embodiment to realize:
Heating mixer comprises body 30, the whipping appts 40 that is mounted and fixed on that 30 mouthfuls of bodies are gone up and rotates by driven by motor, install and be connected the heating unit on the body 30, wherein heating unit comprises the internal heater 22 that places in the body 30, this internal heater is a coil arrangement, and it has multi-turn tubulose heating tube and also have the multilayer tubular heating tube in vertical (highly) direction in level (diameter) direction.
The heating unit of heating mixer can be independent internal heater 22, also can also be made up of internal heater 22 and outer well heater 23.Inside and outside well heater adopts electric heater unit, steam heater or hot oil heater.The structure of internally heating apparatus is circle, rectangle or Polygons, is arranged in the body.
The whipping appts 40 of heating mixer is to be installed by electric motor 42, step-down gear 41 and stirring rake 43 to connect as one.Whipping appts 40 is mounted and fixed on 30 mouthfuls of the bodies, and the stirring rake 43 in the whipping appts is driven by motor 42 and rotates, with mixing of materials.
The body 30 of heating mixer can also be connected with overflow device 10, and this overflow device is outer can arrange an outer well heater 21.Should outer well heater 21 can be a kind of equipment that has insulation construction, wherein insulation construction covers lagging material outside adopting, and lagging material is selected from one or more in rock wool, asbestos, ceramic fibre, pearlstone and the porous plastics.
Outer well heater adopts and adds chuck and be arranged in outside body and the upflow tube, and being divided into the type of heating that is arranged in outer outer well heater 23 of body 30 and outer well heater 21 can be identical, also can difference, preferably adopt same way as.
The material that is connected the overflow device 10 on the body 30 flows out and highly generally to be set in more than body 30 mid-heights to the position that is lower than urea melt inlet tube A, and for example material is discharged 3/5 place of height at body 30 height.Also can will go out open height and in above-mentioned scope, adjust according to the mixing evenness needs.
Among the present invention, overflow device is preferred.Under the situation that does not adopt overflow device, after stirring was finished, mixed slurry can be extracted out from the powder ingress, or emits from drain hole F.
Among the present invention, the step-down gear that heating mixer adopts can be gear reduction unit, worm-gear speed reducer, planetary reducer, cycloidal planetary gear speed reducer, butterfly wheel friction variable speed machine, pulley decelerates machine, belt pulley and gear reduction unit combination, belt pulley and worm-gear speed reducer combination, belt pulley and planetary reducer combination, belt pulley and cycloidal planetary gear speed reducer combination or belt pulley and butterfly are taken turns a kind of in making up of friction variable speed machine.
The installation connection of each device or parts can be that welding, riveted joint or bolt connect in the heating mixer.
When apparatus of the present invention were used, powder was added by powder inlet B, and urea melt is added by urea melt inlet tube A, is discharged by material outlet pipe E.Heating medium for example steam or thermal oil is discharged by outlet pipe D by the spiral heating coil pipe that inlet tube C enters internal heater.Outer well heater adopts conventional equipment, for example adopts electric heater unit, steam heater or hot oil heater.
In apparatus of the present invention, F is a drain hole.
Principle of the present invention is: utilize the heating of heat tracing mixing tank to mix to be the heat exchange of carrying out between liquid-solid; therefore heat transfer rate is fast; the thermo-efficiency height; and owing to mix is to carry out between liquid phase; therefore conduct heat fast and mix; avoid the fusion of powder local superheating to produce caking phenomenon, prevented the obstruction of tablets press shower nozzle.
Equipment of the present invention and method can be used to produce nitrogen phosphorus potassium three elements complex fertilizer, also can be used to produce nitrogen phosphorus potassium two-nutrient compound fertilizer, its available nutrient content 〉=25% of the compound manure that equipment of the present invention and method are produced.
Characteristics of the present invention are; it has changed the heating means that tower granulation is produced the existing powder of compound manure; directly adopt the heat transfer type between high liquid-solid of thermo-efficiency; therefore can save energy consumption; and because the local superheating can avoid heating the time; prevent the solid powder vitreous clinker, thereby fundamentally solving the problem of stopping up the tablets press shower nozzle because of caking.Therefore guaranteed producing granular composite fertilizer using tower pelletizing can stablize, smoothly, normal operation.The investment cost of equipment itself is more much lower than hollow blade well heater and revolving cylinder heater cost simultaneously.
Description of drawings
Fig. 1 is the structural representation of heating mixer of the present invention.
Embodiment
The following example is to further explanation of the present invention and explanation, and the present invention is not constituted any limitation.
Embodiment 1
Heating mixer as shown in Figure 1.In this heating mixer, the whipping appts 40 that is rotated by driven by motor is mounted and fixed on 30 mouthfuls of the bodies, overflow device 10 is connected in the bottom of body 30, the outer overlying strata cotton of the steam jacket well heater of outer well heater 21,23 is a lagging material, inner heating device 22 is the spiral-shaped steam heating coil, steam coils is arranged in concentric circles 2 circles in diametric(al), spirals from bottom to top twist on short transverse and arranges 12 layers.Steam coils is entered and is discharged by the powder ingress, and whipping appts 40 drives turbine worm step-down gear 41 by electric motor 42, drives stirring arm 43 by step-down gear 41 and rotates.In this device, heating medium steam is exported D by heating medium and is discharged by the spiral heating coil pipe that heating medium inlet C enters internal heater.
This device in use, F closes with drain hole, powder is added by powder inlet B, urea melt is added by inlet urea melt inlet A, is discharged by material outlet E.The discharge height of outlet E is at 3/5 place of body 30 height.Adopt this device even heating material, obtain satisfactory mixed slurry, be used for producing granular composite fertilizer using tower pelletizing.
Claims (10)
1, a kind of heating mixer of producing granular composite fertilizer comprises body (30) and whipping appts (40), it is characterized in that it also comprises the internal heater (22) that is arranged in the body (30).
2, heating mixer according to claim 1 is characterized in that: described internal heater (22) is a coil arrangement, and it has multi-turn tubulose heating tube and also have the multilayer tubular heating tube in the vertical direction of body (30) in the horizontal direction of body (30).
3, according to the arbitrary described heating mixer of claim 1-2, it is characterized in that: the heating coil of heating coil in body (30) horizontal direction heating unit is arranged in concentric circles 1-8 circle, spiral from bottom to top twist at body (30) vertical direction upper heating disk pipe, its number of plies is the 2-20 layer.
4,, it is characterized in that in described body (30) diametric(al) heating coil is arranged in concentric circles 2-5 circle according to the arbitrary described heating mixer of claim 1-3; In body (30) short transverse, heating coil spirals twist from bottom to top, and its number of plies is the 5-15 layer.
5, according to the arbitrary described heating mixer of claim 1-4, it is characterized in that: the inlet tube of heating coil passes body (30) wall installation connection or does not pass body (30) wall and entered by powder ingress, body top; The outlet pipe of heating coil passes body (30) wall and connection is installed or does not pass body (30) wall by outside the body top powder ingress comb body (30).
6, according to the arbitrary described heating mixer of claim 1-5, the structure that it is characterized in that described internal heater (22) is circle, rectangle or Polygons.
7,, it is characterized in that it also comprises the overflow device (10) that connects as one with body (30) bottom according to the arbitrary described heating mixer of claim 1-6.
8, heating mixer according to claim 7, the material that it is characterized in that described overflow device (10) flow out height setting body (30) more than the mid-height to the position that is lower than the urea melt inlet tube.
9,, it is characterized in that described body (30) and described overflow device (10) have insulation construction according to the arbitrary described heating mixer of claim 1-7.
10, heated mixt according to claim 9 is characterized in that described insulation construction covers lagging material outside adopting, and lagging material is selected from one or more in rock wool, asbestos, ceramic fibre, pearlstone and the porous plastics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510060037 CN1749222A (en) | 2004-12-31 | 2005-03-25 | Heating mixer for producing granular compound fertilizer |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200410077768.5 | 2004-12-31 | ||
| CN200410077768 | 2004-12-31 | ||
| CN 200510060037 CN1749222A (en) | 2004-12-31 | 2005-03-25 | Heating mixer for producing granular compound fertilizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1749222A true CN1749222A (en) | 2006-03-22 |
Family
ID=36604900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510060037 Pending CN1749222A (en) | 2004-12-31 | 2005-03-25 | Heating mixer for producing granular compound fertilizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1749222A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100412036C (en) * | 2006-10-30 | 2008-08-20 | 广东拉多美化肥有限公司 | Pulp making device for producing compound fertilizer by high tower pelletizing |
| CN103864488A (en) * | 2013-09-24 | 2014-06-18 | 吾邦土智慧生活股份有限公司 | Quick heating device of organic waste fertilizer forming equipment |
| CN106403543A (en) * | 2016-11-22 | 2017-02-15 | 江苏新豪威特种化纤有限公司 | Filament raw material drying device |
| CN109224899A (en) * | 2018-11-19 | 2019-01-18 | 江东电子材料有限公司 | A kind of electrolytic copper foil additive heat insulation system |
-
2005
- 2005-03-25 CN CN 200510060037 patent/CN1749222A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100412036C (en) * | 2006-10-30 | 2008-08-20 | 广东拉多美化肥有限公司 | Pulp making device for producing compound fertilizer by high tower pelletizing |
| CN103864488A (en) * | 2013-09-24 | 2014-06-18 | 吾邦土智慧生活股份有限公司 | Quick heating device of organic waste fertilizer forming equipment |
| CN106403543A (en) * | 2016-11-22 | 2017-02-15 | 江苏新豪威特种化纤有限公司 | Filament raw material drying device |
| CN109224899A (en) * | 2018-11-19 | 2019-01-18 | 江东电子材料有限公司 | A kind of electrolytic copper foil additive heat insulation system |
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