CN103408359A - Sulfur melting system of sulfur coated controlled-release fertilizer production line - Google Patents
Sulfur melting system of sulfur coated controlled-release fertilizer production line Download PDFInfo
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- CN103408359A CN103408359A CN201310322880XA CN201310322880A CN103408359A CN 103408359 A CN103408359 A CN 103408359A CN 201310322880X A CN201310322880X A CN 201310322880XA CN 201310322880 A CN201310322880 A CN 201310322880A CN 103408359 A CN103408359 A CN 103408359A
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Abstract
The invention discloses a sulfur melting system of a sulfur coated controlled-release fertilizer production line. The sulfur melting system comprises a heat carrier furnace, a quick sulfur melting trough, a screw feeder, a sulfur melting pump, a plurality of groups of jet heads, and a coating machine, as well as a primary filter, a refined sulfur storage tank, and a fine filter, wherein the primary filter and the fine filter are connected between the quick sulfur melting trough and the sulfur melting pump; the fine filter is connected between the sulfur melting pump and the plurality of groups of jet heads; solid sulfur in the spiral feeder is fed into the quick sulfur melting trough to be melted into liquid sulfur, and the temperature of the liquid sulfur in the quick sulfur melting trough is controlled to be maintained between 135 DEG C and 145 DEG C; the liquid sulfur passes through the primary filter for filtration and the refined sulfur storage tank for buffering in sequence, is sent to the sulfur melting pump, is sent to the fine filter by the sulfur melting pump to be further filtered, and is jetted into the coating machine through the plurality of groups of jet heads to conduct sulfur coating.
Description
Technical field
The present invention relates to the sulfur melting system field, be specially a kind of sulphur dressing
The sulfur melting system of slow, controlled-release fertilizer production line.
Background technology
The sulphur dressing is slow, Controlled Release Fertilizer has slow, controlled-release function, and according to the different growth phases of crop, the requirement release nutrient by nutrient, can reduce nutrient loss, improves the utilization ratio of fertilizer, economize on resources, and protection of the environment.
At the sulphur dressing
Slow, Controlled Release Fertilizer producesIn process, molten sulphur spraying dressing sulphur is to produce the sulphur dressing
Slow, Controlled Release Fertilizer is importantOperation,
Slow, Controlled Release Fertilizer has nowIn technology, sulfur melting system as shown in Figure 6, by heat carrier furnace, screw feeder, sulfur melting groove, molten sulphur pump, organize shower nozzle more, packing machine forms, screw feeder is sent into solid sulfur in sulfur melting groove, heat carrier furnace is to the sulfur melting groove heat supply, solid sulfur is molten into Molten sulphur in sulfur melting groove, Molten sulphur is pumped into many group shower nozzles through superfusion sulphur, is sprayed in packing machine and is carried out sulphur dressing operation by many groups shower nozzle.
There are following problem in the sulfur melting system of prior art and technique thereof:
1, dust and impurity occluding device and pipeline, cause the production steady running that can not even continue; In spraying process, appearance is slow, a Controlled Release Fertilizer grain surface is inhomogeneous, affects quality product.
2, in current sulfur melting system, each equipment adopts carbon steel material, and the acid mist of generation is serious to equipment corrosion.
3, the molten sulphur thermal source of sulfur melting groove adopts the heat carrier furnace heat supply, and sulfur melting groove internal structure design at present is unreasonable, and heat-transfer effect is poor, and coal consumption is high.
4, temperature control point arranges unreasonablely, and as can be known according to the character of sulphur, the setting at reference mark is very important, Molten sulphur temperature drift or on the low side, and viscosity is all higher, is unfavorable for the conveying of Molten sulphur.
Summary of the invention
The purpose of this invention is to provide that a kind of sulphur dressing is slow, the sulfur melting system of controlled-release fertilizer production line, the problem existed to solve prior art.
In order to achieve the above object, the technical solution adopted in the present invention is:
A kind of sulphur dressing
the sulfur melting system of slow, controlled-release fertilizer production line, include heat carrier furnace, sulfur melting slot, feeding is to the screw feeder of sulfur melting slot, and molten sulphur pump, many group shower nozzles, packing machine, it is characterized in that: also include coarse filter, essence sulphur storage tank, fine filter, described heat carrier furnace heat supply is to sulfur melting slot, coarse filter, essence sulphur storage tank, molten sulphur pump, fine filter, the opening for feed of described sulfur melting slot is communicated with the screw feeder discharge port, the discharge port of sulfur melting slot is communicated with the opening for feed of coarse filter, the discharge port of coarse filter is communicated with the opening for feed of smart sulphur storage tank, the discharge port of essence sulphur storage tank is communicated with the opening for feed of molten sulphur pump, the discharge port of molten sulphur pump is communicated with the opening for feed of fine filter, many group shower nozzles access respectively the discharge port of fine filter, solid sulfur in screw feeder is sent in sulfur melting slot and is molten into Molten sulphur, and in the control sulfur melting slot, the Molten sulphur temperature maintains 140 ℃ ± 5 ℃, Molten sulphur is filtered through coarse filter successively, after essence sulphur storage tank buffering, send into molten sulphur pump, after by molten sulphur, being pumped into the further filtration of fine filter again, by many groups shower nozzle, spray in packing machine and carry out the sulphur dressing.
Described a kind of sulphur dressing
The sulfur melting system of slow, controlled-release fertilizer production lineIt is characterized in that: described sulfur melting slot includes the tank body of airtight stainless material, the tank body top is provided with opening for feed, tank body one side lower part is provided with discharge port, tank base is provided with sewage draining exit, in tank body, be provided with the internal layer heating coil, and be enclosed within the outer outer heating coil of internal layer heating coil, the tank body top also is equipped with the agitator reducing motor, the output shaft of agitator reducing motor is connected with stir shaft, described stir shaft stretches in the internal layer heating coil straight down, and on the stir shaft axle body, is connected with from top to bottom three sections paddles in turn.
Described a kind of sulphur dressing
The sulfur melting system of slow, controlled-release fertilizer production line, it is characterized in that: the tank wall of sulfur melting slot is equipped with temperature thermocouple.
Described a kind of sulphur dressing
The sulfur melting system of slow, controlled-release fertilizer production lineIt is characterized in that: described coarse filter includes airtight stainless steel tank body, stainless steel tank body one upper lateral part is provided with opening for feed, stainless steel tank body one side lower part is provided with discharge port, and on opening for feed, be communicated with on thermal oil inlet pipe, discharge port and be communicated with thermal oil and go out pipe, in the middle of stainless steel tank body, also be provided with the stainless steel filtering net, stainless steel filtering net edge movable is fixed on the stainless steel tank body intermediate inner wall.
Described a kind of sulphur dressing
The sulfur melting system of slow, controlled-release fertilizer production lineIt is characterized in that: described smart sulphur storage tank includes airtight tank body, tank body one upper lateral part is provided with opening for feed, tank base is provided with discharge port, in tank body, be provided with heating coil, the tank body top is equipped with the agitator reducing motor, and the output shaft of agitator reducing motor is connected with stir shaft, and described stir shaft stretches in heating coil straight down.
Described a kind of sulphur dressing
The sulfur melting system of slow, controlled-release fertilizer production line, it is characterized in that: the tank wall of described smart sulphur storage tank is equipped with thermopair.
Described a kind of sulphur dressing
The sulfur melting system of slow, controlled-release fertilizer production lineIt is characterized in that: described fine filter comprises Packed stainless steel tank body, stainless steel tank body one upper lateral part is provided with opening for feed, stainless steel tank body one side lower part is provided with discharge port, and on opening for feed, be communicated with on thermal oil inlet pipe, discharge port and be communicated with thermal oil and go out pipe, in the middle of stainless steel tank body, also be provided with filter core, filter core top close-fitting has support ring, and support ring outer wall and stainless steel tank body intermediate inner wall closely connect as one.
Described a kind of sulphur dressing
The sulfur melting system of slow, controlled-release fertilizer production line, it is characterized in that: described molten sulphur pump is heat-resisting pump under liquid.
Advantage of the present invention is:
1, after sulfur melting slot, add coarse filter, add fine filter at molten sulphur pump discharge, make dust and impurity≤0.01% in sulphur.
2, sulfur melting slot, molten sulphur agitator, thick sulphur filter, smart sulphur filter, melt the sulphur submerged pump and adopt stainless material, improve service life of equipment, realized the single series operation, saved investment.
3 coarse filter filter screens >=50 orders, fine filter filter screen >=100 orders, avoid follow-up equipment and tubing system not blocked, and the implement device long period is moved continuously.
4, the sulfur melting slot internal structure is improved, and improves heat transfer efficiency, and fast fast thawing sulphur heat hot carrier, adopt graded to use in addition, is mainly used in the insulation thermal source of coarse filter, smart sulfur melting groove, fine filter, liquid sulfur and many shower nozzles, reduces the consumption of coal.
The accompanying drawing explanation
Fig. 1 is system chart of the present invention.
Fig. 2 is sulfur melting slot structural representation of the present invention.
Fig. 3 is coarse filter structural representation of the present invention.
Fig. 4 is the present invention's essence sulphur tank structure schematic diagram.
Fig. 5 is fine filter structural representation of the present invention.
Fig. 6 is prior art sulfur melting system block diagram.
Embodiment
As shown in Figure 1.A kind of sulphur dressing
the sulfur melting system of slow, controlled-release fertilizer production line, include heat carrier furnace 1, sulfur melting slot 2, feeding is to the screw feeder 3 of sulfur melting slot 2, and molten sulphur pump 4, many group shower nozzles 5, packing machine 6, also include coarse filter 7, essence sulphur storage tank 8, fine filter 9, heat carrier furnace 1 heat supply is to sulfur melting slot 2, coarse filter 7, essence sulphur storage tank 8, molten sulphur pump 4, fine filter 9, the opening for feed of sulfur melting slot 2 is communicated with screw feeder 3 discharge ports, the discharge port of sulfur melting slot 2 is communicated with the opening for feed of coarse filter 7, the discharge port of coarse filter 7 is communicated with the opening for feed of smart sulphur storage tank 8, the discharge port of essence sulphur storage tank 8 is communicated with the opening for feed of molten sulphur pump 4, the discharge port of molten sulphur pump 4 is communicated with the opening for feed of fine filter 9, many group shower nozzles 5 access respectively the discharge port of fine filter 9, solid sulfur in screw feeder 3 is sent in sulfur melting slot 2 and is molten into Molten sulphur, and control Molten sulphur temperature in sulfur melting slot 2 and maintain 140 ℃ ± 5 ℃, Molten sulphur is filtered through coarse filter 7 successively, after essence sulphur storage tank 8 bufferings, send into molten sulphur pump 4, after by molten sulphur pump 4, sending into the further filtration of fine filter 9 again, by many groups shower nozzle 5, spray in packing machine 6 and carry out the sulphur dressing.
As shown in Figure 2.Sulfur melting slot 2 includes the tank body 21 of airtight stainless material, tank body 21 tops are provided with opening for feed 22, tank body 21 1 side lower parts are provided with discharge port 23, tank body 21 bottoms are provided with sewage draining exit 24, in tank body 21, be provided with internal layer heating coil 25, and be enclosed within the outer outer heating coil 26 of internal layer heating coil 25, tank body 21 tops also are equipped with agitator reducing motor 27, the output shaft of agitator reducing motor 27 is connected with stir shaft 28, stir shaft 28 stretches in internal layer heating coil 25 straight down, and on stir shaft 28 axle bodies, be connected with from top to bottom three sections paddles 29 in turn.
As shown in Figure 3.Coarse filter 7 includes airtight stainless steel tank body 71, stainless steel tank body 71 1 upper lateral parts are provided with opening for feed 72, stainless steel tank body 71 1 side lower parts are provided with discharge port 73, and on opening for feed 72, being communicated with on thermal oil inlet pipe 74, discharge port 73 is communicated with thermal oil and goes out pipe 75, in the middle of stainless steel tank body 71, also be provided with stainless steel filtering net 76, stainless steel filtering net 76 edge movables are fixed on stainless steel tank body 71 intermediate inner wall.
As shown in Figure 4.Essence sulphur storage tank 8 includes airtight tank body 81, tank body 81 1 upper lateral parts are provided with opening for feed 82, tank body 81 bottoms are provided with discharge port 83, in tank body 81, be provided with heating coil 84, tank body 81 tops are equipped with agitator reducing motor 85, the output shaft of agitator reducing motor 85 is connected with stir shaft 86, and stir shaft 86 stretches in heating coil straight down.
Tank body 81 sidewalls of essence sulphur storage tank 8 are equipped with thermopair 87.
As shown in Figure 5.Fine filter 9 comprises Packed stainless steel tank body 91, stainless steel tank body 91 1 upper lateral parts are provided with opening for feed 92, stainless steel tank body 91 1 side lower parts are provided with discharge port 93, and on opening for feed 92, be communicated with on thermal oil inlet pipe 94, discharge port 93 and be communicated with thermal oil and go out pipe 95, in the middle of stainless steel tank body 91, also be provided with filter core 96, filter core 96 top close-fittings have support ring 97, and support ring 97 outer walls and stainless steel tank body 91 intermediate inner wall closely connect as one.
Molten sulphur pump 4 is heat-resisting pump under liquid.
In the present invention, the sulfur melting slot improvement is the two-layer heating coil of interior design, in heating coil, walks heat-carrying agent medium, stir shaft stretches in the internal layer heating coil, on stir shaft, be designed to syllogic sulphur paddle, purpose is sulphur place flow state in groove, in order to improve heat transfer efficiency in sulfur melting groove
In the present invention, the coarse filter design is in equipment, to increase 50-60 purpose stainless steel filtering net, fine filter adopts 80-100 purpose stainless steel filtering net, this filtering net adopts dismountable structure, purpose one is to reach the quality that impurity screening improves sulphur, the 2nd, and it is in order to be convenient for changing that filtering net adopts dismountable structure.
In the present invention, newly-increased smart sulphur storage tank, molten sulphur pump adopts heat-resisting pump under liquid, in order to make the shower nozzle atomizing effect remarkable, choose reasonable heat-resisting throw of pump under liquid, and molten sulphur pump and smart sulphur storage tank are integrated.Purpose one is that smart sulphur storage tank plays shock absorption, the 2nd, and under molten sulphur pump employing liquid, heat-resisting pump has guaranteed the stability of flow of Molten sulphur, by automatic control, the flow of molten sulphur pump and the feeding coal of screw feeder is equated in addition, does not have the excessive phenomenon of liquid-state sulfur.
In the present invention, the process of sulphur dressing completes in packing machine, and the effect of shower nozzle atomization directly has influence on the equal property of sulphur dressing, integrity, and by the transformation to shower nozzle, adopting efficient shower nozzle one is that atomization is even, the 2nd, be difficult for stopping up.
Claims (8)
1. a sulphur dressing is slow, the sulfur melting system of controlled-release fertilizer production line, include heat carrier furnace, sulfur melting slot, feeding is to the screw feeder of sulfur melting slot, and molten sulphur pump, many group shower nozzles, packing machine is characterized in that: also include coarse filter, essence sulphur storage tank, fine filter, described heat carrier furnace heat supply is to sulfur melting slot, coarse filter, essence sulphur storage tank, molten sulphur pump, fine filter, the opening for feed of described sulfur melting slot is communicated with the screw feeder discharge port, the discharge port of sulfur melting slot is communicated with the opening for feed of coarse filter, the discharge port of coarse filter is communicated with the opening for feed of smart sulphur storage tank, the discharge port of essence sulphur storage tank is communicated with the opening for feed of molten sulphur pump, the discharge port of molten sulphur pump is communicated with the opening for feed of fine filter, many group shower nozzles access respectively the discharge port of fine filter, solid sulfur in screw feeder is sent in sulfur melting slot and is molten into Molten sulphur, and in the control sulfur melting slot, the Molten sulphur temperature maintains 140 ℃ ± 5 ℃, Molten sulphur is filtered through coarse filter successively, after essence sulphur storage tank buffering, send into molten sulphur pump, then, after by molten sulphur, being pumped into the further filtration of fine filter, spraying in packing machine and carry out the sulphur dressing by many groups shower nozzle.
2. a kind of sulphur dressing according to claim 1 is slow, the sulfur melting system of controlled-release fertilizer production line, it is characterized in that: described sulfur melting slot includes the tank body of airtight stainless material, the tank body top is provided with opening for feed, tank body one side lower part is provided with discharge port, tank base is provided with sewage draining exit, in tank body, be provided with the internal layer heating coil, and be enclosed within the outer outer heating coil of internal layer heating coil, the tank body top also is equipped with the agitator reducing motor, the output shaft of agitator reducing motor is connected with stir shaft, described stir shaft stretches in the internal layer heating coil straight down, and on the stir shaft axle body, be connected with from top to bottom three sections paddles in turn.
3. the sulfur melting system of slow, the controlled-release fertilizer production line of a kind of sulphur dressing according to claim 2, it is characterized in that: the tank wall of sulfur melting slot is equipped with temperature thermocouple.
4. the sulfur melting system of slow, the controlled-release fertilizer production line of a kind of sulphur dressing according to claim 1, it is characterized in that: described coarse filter includes airtight stainless steel tank body, stainless steel tank body one upper lateral part is provided with opening for feed, stainless steel tank body one side lower part is provided with discharge port, and on opening for feed, be communicated with on thermal oil inlet pipe, discharge port and be communicated with thermal oil and go out pipe, in the middle of stainless steel tank body, also be provided with the stainless steel filtering net, stainless steel filtering net edge movable is fixed on the stainless steel tank body intermediate inner wall.
5. the sulfur melting system of slow, the controlled-release fertilizer production line of a kind of sulphur dressing according to claim 1, it is characterized in that: described smart sulphur storage tank includes airtight tank body, tank body one upper lateral part is provided with opening for feed, tank base is provided with discharge port, in tank body, be provided with heating coil, the tank body top is equipped with the agitator reducing motor, and the output shaft of agitator reducing motor is connected with stir shaft, and described stir shaft stretches in heating coil straight down.
6. the sulfur melting system of slow, the controlled-release fertilizer production line of a kind of sulphur dressing according to claim 1, it is characterized in that: the tank wall of described smart sulphur storage tank is equipped with thermopair.
7. the sulfur melting system of slow, the controlled-release fertilizer production line of a kind of sulphur dressing according to claim 1, it is characterized in that: described fine filter comprises Packed stainless steel tank body, stainless steel tank body one upper lateral part is provided with opening for feed, stainless steel tank body one side lower part is provided with discharge port, and on opening for feed, be communicated with on thermal oil inlet pipe, discharge port and be communicated with thermal oil and go out pipe, in the middle of stainless steel tank body, also be provided with filter core, filter core top close-fitting has support ring, and support ring outer wall and stainless steel tank body intermediate inner wall closely connect as one.
8. the sulfur melting system of slow, the controlled-release fertilizer production line of a kind of sulphur dressing according to claim 1, it is characterized in that: described molten sulphur pump is heat-resisting pump under liquid.
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| CN201310322880.XA CN103408359B (en) | 2013-07-29 | 2013-07-29 | Sulfur melting system of sulfur coated controlled-release fertilizer production line |
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| CN201310322880.XA CN103408359B (en) | 2013-07-29 | 2013-07-29 | Sulfur melting system of sulfur coated controlled-release fertilizer production line |
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| CN103408359B CN103408359B (en) | 2015-02-04 |
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| CN2734753Y (en) * | 2004-09-29 | 2005-10-19 | 山东农业大学 | Pipe-disc type multi-layer urea and sulphur rapid melting device |
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| WO2009021386A1 (en) * | 2007-08-15 | 2009-02-19 | Shandong Kingenta Ecological Engineering Co., Ltd. | Aqueous polymer-sulfur coated controlled release fertilizer and preparation thereof |
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| CN201473465U (en) * | 2009-08-17 | 2010-05-19 | 山东鹏飞集团有限公司 | Compound fertilizer raw material melting device |
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| CN201665638U (en) * | 2010-03-15 | 2010-12-08 | 訾兆举 | Novel device for producing amino acid sustained and controlled release sulfenyl composite fertilizer |
| CN202415157U (en) * | 2012-02-08 | 2012-09-05 | 浠水县福瑞德化工有限责任公司 | Sulfur melting system |
-
2013
- 2013-07-29 CN CN201310322880.XA patent/CN103408359B/en not_active Expired - Fee Related
Patent Citations (8)
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| CN2734753Y (en) * | 2004-09-29 | 2005-10-19 | 山东农业大学 | Pipe-disc type multi-layer urea and sulphur rapid melting device |
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