CN116159321A - Spray drying mechanism for fertilizer production and fertilizer production method - Google Patents
Spray drying mechanism for fertilizer production and fertilizer production method Download PDFInfo
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- CN116159321A CN116159321A CN202310146220.4A CN202310146220A CN116159321A CN 116159321 A CN116159321 A CN 116159321A CN 202310146220 A CN202310146220 A CN 202310146220A CN 116159321 A CN116159321 A CN 116159321A
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- 230000007246 mechanism Effects 0.000 title claims abstract description 123
- 238000001694 spray drying Methods 0.000 title claims abstract description 59
- 239000003337 fertilizer Substances 0.000 title claims abstract description 50
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 48
- 238000009826 distribution Methods 0.000 claims abstract description 40
- 238000001035 drying Methods 0.000 claims abstract description 29
- 239000007921 spray Substances 0.000 claims abstract description 29
- 239000000428 dust Substances 0.000 claims abstract description 24
- 230000002093 peripheral effect Effects 0.000 claims description 38
- 238000001816 cooling Methods 0.000 claims description 30
- 239000004744 fabric Substances 0.000 claims description 27
- 239000000463 material Substances 0.000 claims description 19
- 238000004140 cleaning Methods 0.000 claims description 16
- 238000007664 blowing Methods 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 11
- 238000005507 spraying Methods 0.000 claims description 11
- 238000007599 discharging Methods 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 8
- 238000007790 scraping Methods 0.000 claims description 8
- 238000004891 communication Methods 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 claims description 5
- 238000000889 atomisation Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000010981 drying operation Methods 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 11
- 239000002245 particle Substances 0.000 abstract description 4
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- 229910010272 inorganic material Inorganic materials 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/16—Evaporating by spraying
- B01D1/18—Evaporating by spraying to obtain dry solids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/0082—Regulation; Control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/16—Evaporating by spraying
- B01D1/20—Sprayers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/30—Accessories for evaporators ; Constructional details thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/20—Combinations of devices covered by groups B01D45/00 and B01D46/00
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G5/00—Fertilisers characterised by their form
- C05G5/10—Solid or semi-solid fertilisers, e.g. powders
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Organic Chemistry (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention relates to the technical field of fertilizer production, and discloses a spray drying mechanism for fertilizer production and a fertilizer production method, wherein the spray drying mechanism comprises a feeding mechanism, a cold air supply mechanism, a negative pressure air draft mechanism, a hot air supply mechanism, a cyclone dust collector, a pulse bag filter and a spray drying mechanism; one ends of the air inlets of the cold air supply mechanism and the hot air supply mechanism are connected with an air filter through pipelines. According to the spray drying mechanism for fertilizer production and the fertilizer production method, through the differential reverse rotation design of the atomizing nozzle component and the inner shell, the static structure of the traditional drying equipment is changed into a dynamic structure, the fixed-point contact degree and fixed-point contact time of particles and the inner shell can be effectively reduced through the dynamic structure design, the adhesion probability of the particles in the device is effectively reduced through the realization of the effect, and meanwhile, the probability of wind distribution dead angle and drying dead angle during drying of the device can be effectively reduced through the synchronous rotation design of the atomizing nozzle component and the hot air spray pipe.
Description
Technical Field
The invention relates to the technical field of fertilizer production, in particular to a spray drying mechanism for fertilizer production and a fertilizer production method.
Background
The spray drier has wide application range, can be dried by hot air or cold air according to the characteristics of materials, can be used for producing a large number of products with very different characteristics, and is commonly used: polymers and resins, dyes, pigments, ceramics, glasses, rust removers, pesticides, carbohydrates, dairy products, tannins, slaughterhouse by-products, blood and blood products, detergents and surfactants fertilizers, organic compounds, inorganic compounds, instant foods, medicines, etc.; advantages of spray drying: the materials of solution, emulsion, suspension and pasty liquid can be made into dry powder, fine and medium granule products by spray drying.
At present, in the spray drying process of fertilizer preparation, the spray structure and the external structure both adopt static structures, so that the problem of material collection exists in use, namely, the problem of wall sticking exists, the material collection is difficult, and the spray drying process and the spray drying effect are poor, so that the invention provides a spray drying mechanism for fertilizer production and a fertilizer production method.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the invention provides a spray drying mechanism for fertilizer production and a fertilizer production method, and solves the problems in the prior art.
(II) technical scheme
In order to achieve the above object, the present invention provides the following technical solutions: a spray drying mechanism for chemical fertilizer production and a chemical fertilizer production method comprise a feeding mechanism, a cold air feeding mechanism, a negative pressure air draft mechanism, a hot air feeding mechanism, a cyclone dust collector, a pulse bag filter and a spray drying mechanism; one ends of air inlets of the cold air supply mechanism and the hot air supply mechanism are connected with an air filter through pipelines; one end of a discharge hole of the feeding mechanism is connected with a pump body; one end of the pump body discharge hole is rotationally communicated with the spray drying mechanism through a feed pipe; one end of the air outlet of the hot air supply mechanism is rotationally communicated with the spray drying mechanism through an air supply pipe; one end of the air outlet of the spray drying mechanism is fixedly communicated with the cyclone dust collector; one end of the outlet of the cyclone dust collector is communicated with the pulse bag filter; one end of the pulse bag filter outlet is communicated with the negative pressure air draft mechanism, and the pulse bag filter is characterized in that: the spray drying mechanism includes an outer housing; the inner wall of the outer shell is rotatably connected with the inner shell; a cooling outer cavity is fixedly arranged between the opposite surfaces of the outer shell and the inner shell; a drying inner cavity is fixedly arranged in the inner shell; the peripheral side surface of the outer shell is fixedly provided with a group of cold air blowing pipes and air distributing ring pipes which are distributed in a circumferential array; one end of each group of cold air blowing pipes is fixedly communicated with the air distributing ring pipe; one end of the air inlet of the air dividing ring pipe is fixedly communicated with the cold air supply mechanism; one end of the air outlet of the group of cold air blowing pipes is fixedly communicated with the cooling outer cavity; the peripheral side surface of the outer shell is fixedly provided with a hot air discharge pipe communicated with the drying inner cavity; one end of the air outlet of the hot air exhaust pipe is fixedly communicated with the cyclone dust collector; the axle center position of the outer shell is rotationally connected with an outer shaft through a bearing; the axis position of the inner shell is rotationally connected with a wind distribution shaft tube through a bearing; the outer peripheral side surface of the outer shaft is fixedly connected with the inner shell through a bracket; the inner wall of the outer shaft is rotationally connected with a cloth shaft tube through a bearing; one end of the feeding pipe is rotationally communicated with the cloth shaft pipe; one end of the air supply pipe is rotationally communicated with the air distribution shaft pipe; one end of the cloth shaft tube extends to the inside of the inner shell; an atomization nozzle component is fixedly communicated with the bottom end of the cloth shaft tube; the top end of the wind distribution shaft tube is fixedly connected with the atomizing nozzle component.
Preferably, the top surface of the outer shell is fixedly connected with a support plate; the surface of the support plate is fixedly connected with a main driving motor; one end of the output shaft of the main driving motor is respectively in transmission connection with the outer shaft and the cloth shaft tube through two driving bevel gears; two groups of connecting rods are fixedly arranged on the peripheral side surface of the outer shaft; the peripheral side surface of the wind distribution shaft tube is fixedly connected with a spiral cleaning scraping blade through a connecting rod; the peripheral side face of the spiral cleaning scraping blade is attached to the inner shell.
Preferably, the peripheral side surface of the wind distribution shaft tube is fixedly communicated with a group of wind distributing heads distributed in a linear array; a group of hot air spray pipes distributed in a circumferential array are fixedly communicated with the peripheral side surfaces of the wind dividing heads; two groups of symmetrically arranged hot air spray holes are formed in the peripheral side face of the hot air spray pipe; and the bottom of the outer shell is fixedly connected with two symmetrically arranged vibrating motors.
Preferably, a discharging pipe communicated with the drying inner cavity is fixedly arranged at the bottom of the outer shell; a valve is fixedly arranged on the peripheral side surface of the discharge pipe; and air quantity regulating valves are arranged at the communication parts of the hot air discharge pipes and the negative pressure exhaust mechanism and the communication parts of the air distribution ring pipe and the cold air supply mechanism.
Preferably, the atomizer assembly comprises an atomizer base; the upper end surface of the spraying seat is fixedly communicated with the cloth shaft tube; the bottom surface of the spraying seat is fixedly connected with the air distribution shaft pipe; an air outlet inclined plane is fixedly arranged on the peripheral side surface of the spraying seat; a plurality of groups of discharging spray holes distributed in a circumferential array are formed in the peripheral side face of the air outlet inclined plane; the air outlet inclined plane is an angle chamfer inclined plane.
Preferably, the peripheral sides of the outer shaft and the cloth shaft tube are fixedly connected with driven bevel gears; the two driven bevel gears are symmetrically arranged by taking the plane where the axis of the main driving motor is positioned as an axis; the cloth shaft tube is of a hollow tubular structure with two open ends; the wind distribution shaft tube is of a hollow tubular structure with an opening at the lower end and a closed upper end.
Preferably, the included angle range between the axis of the hot air spray pipe and the axis of the inner shell is an angle degree; the inner shell is of a hollow cylindrical structure with two open ends.
Preferably, the top surface of the outer shell is fixedly provided with a first temperature sensor matched with the drying inner cavity; the peripheral side surface of the outer shell is fixedly provided with a second temperature sensor matched with the cooling outer cavity; the first temperature sensor detection end extends to the interior of the drying cavity; the second temperature sensor detection end extends to the inside of the cooling outer cavity; a group of air injection nozzles which are distributed in a linear array and are communicated with the cooling outer cavity are fixedly communicated with one surface of the group of cold air blowing pipes opposite to the cooling outer cavity; the support plate is of an L-shaped structure; the material guiding seat is fixedly arranged on the circumferential side surface of the wind distribution shaft tube and corresponds to the material discharging tube.
Preferably, the method comprises the following steps: SS001, lay: before the device is used, the device is distributed in a state as shown in the figure, and before the device works, the air outlet temperature of the hot air supply mechanism and the cold air supply mechanism is controlled by a controller matched with the device, and the air inlet quantity in unit time of the air distribution ring pipe and the air outlet quantity in unit time of the hot air discharge pipe are controlled by an air quantity regulating valve; SS002, drying operation: during operation, the pump body feeds materials to the feeding pipe at a set speed, the hot air feeding mechanism, the cold air feeding mechanism, the cyclone dust collector, the pulse bag filter and the negative pressure air suction mechanism work, after the hot air feeding mechanism works, hot air at a set temperature is fed to the drying inner cavity, after the cold air feeding mechanism works, cold air at a set temperature is fed to the cooling outer cavity, the cyclone dust collector and the pulse bag filter carry out filtering dust collection work on the discharged hot air, the negative pressure air suction mechanism provides a negative pressure air source for the device, during operation of the mechanism, the spray drying mechanism synchronously works, during operation of the spray drying mechanism, the main driving motor works at a set speed under the control of the controller, after the main driving motor works, the outer shaft is driven to move forward at a set speed, the material distribution shaft tube, the atomizing spray head assembly, the spiral cleaning scraping blade and the wind distribution shaft tube reversely move at a set speed, after the spiral cleaning scraping blade circularly moves downwards, after the spiral cleaning scraping blade rotates, the inner shell is driven to move forward at the set speed, a set of constant temperature air is discharged by the blowing tube, the cooling outer cavity is kept at a set cooling temperature, thereby cooling the outer wall of the inner shell is cooled, the outer shell is cooled, the atomized spray liquid is discharged by the set of pressure, after the drying liquid is sprayed out of the material is dried by the set of pressure air, and the drying liquid is discharged by the spray tube after the set of pressure is dried.
(III) beneficial effects
Compared with the prior art, the invention provides a spray drying mechanism for fertilizer production and a fertilizer production method, which have the following beneficial effects:
according to the spray drying mechanism for fertilizer production and the fertilizer production method, the differential reverse rotation type design of the atomizing nozzle assembly and the inner shell is adopted, the static structure of the traditional drying equipment is changed into a dynamic structure, the fixed point contact degree and fixed point contact time of particles and the inner shell can be effectively reduced through the dynamic structure design, the adhesion probability of the particles in the device is effectively reduced through the realization of the effect, the probability of wind distribution dead angle and drying dead angle during drying of the device can be effectively reduced through the synchronous rotation design of the atomizing nozzle assembly and the hot air spray pipe, the cyclone type wind outlet effect can be formed through the rotatable design of the atomizing nozzle assembly, the automatic wind removal effect can be achieved on impurities adhered to the inner shell through the cyclone type state, the automatic falling and discharging speed of the materials can be enhanced through the arrangement of the vibration motor, the wall adhesion phenomenon occurring during spray drying of the device is effectively avoided, and the spray drying effect of the device is effectively improved.
Drawings
FIG. 1 is a schematic diagram of a spray drying mechanism for fertilizer production and a method for fertilizer production according to the present invention;
FIG. 2 is a schematic diagram showing the structure of a spray drying mechanism for fertilizer production and a spray drying mechanism for fertilizer production method according to the present invention
Fig. 3 is a schematic structural diagram of a spray drying mechanism for fertilizer production and an atomizer assembly for fertilizer production method according to the present invention.
In the figure: 1. a feeding mechanism; 2. a cold air supply mechanism; 3. a negative pressure air draft mechanism; 4. a hot air supply mechanism; 5. a cyclone dust collector; 6. a pulse bag filter; 7. a spray drying mechanism; 8. an air filter; 9. a pump body; 10. a feed pipe; 11. an air supply pipe; 12. an outer housing; 13. an inner housing; 14. cooling the outer cavity; 15. drying the inner cavity; 16. a cold air blowing pipe; 17. a wind-dividing ring pipe; 18. a hot air discharge pipe; 19. a vibration motor; 20. an outer shaft; 21. a wind distribution shaft tube; 22. a bracket; 23. a cloth shaft tube; 24. an atomizer assembly; 25. a wind dividing head; 26. a hot air spray pipe; 27. hot air spray holes; 28. a support plate; 29. a main driving motor; 30. a connecting rod; 31. a spiral cleaning blade; 32. a discharge pipe; 33. an air quantity adjusting valve; 34. a spray seat; 35. an air outlet inclined plane; 36. discharging spray holes; 37. driven bevel gears.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-3, the present invention provides a technical solution: comprises a feeding mechanism 1, a cold air feeding mechanism 2, a negative pressure air draft mechanism 3, a hot air feeding mechanism 4, a cyclone dust collector 5, a pulse bag filter 6 and a spray drying mechanism 7; one ends of air inlets of the cold air supply mechanism 2 and the hot air supply mechanism 4 are connected with an air filter 8 through pipelines; one end of a discharge hole of the feeding mechanism 1 is connected with a pump body 9; one end of a discharge hole of the pump body 9 is rotationally communicated with the spray drying mechanism 7 through a feed pipe 10; one end of the air outlet of the hot air supply mechanism 4 is rotationally communicated with the spray drying mechanism 7 through an air supply pipe 11; one end of an air outlet of the spray drying mechanism 7 is fixedly communicated with the cyclone dust collector 5; one end of the outlet of the cyclone dust collector 5 is communicated with a pulse bag filter 6; one end of the outlet of the pulse bag filter 6 is communicated with the negative pressure air draft mechanism 3, and is characterized in that: the spray drying mechanism 7 comprises an outer housing 12; an inner shell 13 is rotatably connected to the inner wall of the outer shell 12; a cooling outer cavity 14 is fixedly arranged between the opposite surfaces of the outer shell 12 and the inner shell 13; a drying inner cavity 15 is fixedly arranged in the inner shell 13; a group of cold air blowing pipes 16 and air distributing ring pipes 17 distributed in a circumferential array are fixedly arranged on the side surface of the periphery of the outer shell 12; one end of each group of cold air blowing pipes 16 is fixedly communicated with a wind distributing ring pipe 17; one end of the air inlet of the air distribution ring pipe 17 is fixedly communicated with the cold air supply mechanism 2; one end of the air outlet of the group of cold air blowing pipes 16 is fixedly communicated with the cooling outer cavity 14; the side surface of the periphery of the outer shell 12 is fixedly provided with a hot air discharge pipe 18 communicated with the drying inner cavity 15; one end of an air outlet of the hot air exhaust pipe 18 is fixedly communicated with the cyclone dust collector 5; the axis position of the outer shell 12 is rotatably connected with an outer shaft 20 through a bearing; the axis position of the inner shell 13 is rotatably connected with a wind distribution shaft tube 21 through a bearing; the peripheral side surface of the outer shaft 20 is fixedly connected with the inner shell 13 through a bracket 22; the inner wall of the outer shaft 20 is rotatably connected with a cloth shaft tube 23 through a bearing; one end of the feeding pipe 10 is rotationally communicated with the cloth shaft pipe 23; one end of the air supply pipe 11 is rotationally communicated with the air distribution shaft pipe 21; one end of the cloth shaft tube 23 extends into the inner shell 13; an atomization nozzle assembly 24 is fixedly communicated with the bottom end of the material distribution shaft tube 23; the top end of the air distribution shaft tube 21 is fixedly connected with the atomizing nozzle assembly 24, and the top surface of the outer shell 12 is fixedly connected with a support plate 28; the surface of the support plate 28 is fixedly connected with a main driving motor 29; one end of the output shaft of the main driving motor 29 is respectively connected with the outer shaft 20 and the cloth shaft tube 23 in a transmission way through two drive bevel gears; two groups of connecting rods 30 are fixedly arranged on the peripheral side surface of the outer shaft 20; the peripheral side surface of the wind distribution shaft tube 21 is fixedly connected with a spiral cleaning scraping blade 31 through a connecting rod 30; the peripheral side surface of the spiral cleaning blade 31 is attached to the inner shell 13, and the peripheral side surface of the air distribution shaft tube 21 is fixedly communicated with a group of air distributing heads 25 distributed in a linear array; a group of hot air spray pipes 26 distributed in a circumferential array are fixedly communicated with the peripheral side surfaces of the wind dividing heads 25; two groups of symmetrically arranged hot air spray holes 27 are formed in the peripheral side surface of the hot air spray pipe 26; the bottom of the outer shell 12 is fixedly connected with two symmetrically arranged vibrating motors 19, and the bottom of the outer shell 12 is fixedly provided with a discharge pipe 32 communicated with the drying inner cavity 15; a valve is fixedly arranged on the side surface of the periphery of the discharge pipe 32; an air quantity regulating valve 33 is arranged at the communication part of the hot air discharge pipe 18 and the negative pressure air suction mechanism 3 and at the communication part of the air distribution ring pipe 17 and the cold air supply mechanism 2, and the atomizing nozzle assembly 24 comprises a spray seat 34; the upper end surface of the spraying seat 34 is fixedly communicated with the cloth shaft tube 23; the bottom surface of the spraying seat 34 is fixedly connected with the air distribution shaft tube 21; an air outlet inclined plane 35 is fixedly arranged on the peripheral side surface of the spraying seat 34; a plurality of groups of discharge spray holes 36 distributed in a circumferential array are formed in the circumferential side surface of the air outlet inclined surface 35; the air outlet inclined plane 35 is a 45-degree chamfer inclined plane, and driven bevel gears 37 are fixedly connected to the peripheral side surfaces of the outer shaft 20 and the cloth shaft tube 23; the two driven bevel gears 37 are symmetrically arranged with the plane of the axis of the main driving motor 29 as the axis; the cloth shaft tube 23 is of a hollow tubular structure with two open ends; the air distribution shaft tube 21 is of a hollow tubular structure with an opening at the lower end and a closed upper end, and the included angle between the axis of the hot air spray tube 26 and the axis of the inner shell 13 is 15-25 degrees; the inner shell 13 is of a hollow cylindrical structure with two open ends, and a first temperature sensor matched with the drying inner cavity 15 is fixedly arranged on the top surface of the outer shell 12; a second temperature sensor matched with the cooling outer cavity 14 is fixedly arranged on the peripheral side surface of the outer shell 12; the first temperature sensor detection end extends into the drying cavity 15; the second temperature sensor detection end extends into the cooling outer cavity 14; a group of air injection nozzles which are distributed in a linear array and are communicated with the cooling outer cavity 14 are fixedly communicated with one surface of the group of cold air blowing pipes 16 opposite to the cooling outer cavity 14; the support plate 28 has an L-shaped structure; the material guiding seat is fixedly arranged on the circumferential side surface of the wind distribution shaft tube 21 and corresponds to the material discharging tube 32.
Working steps; SS001, lay: before the device is used, the device is arranged in the state shown in figure 1, before the device works, the air outlet temperature of the hot air supply mechanism (4) and the cold air supply mechanism (2) is controlled by a controller matched with the device, and the air inlet quantity of the air distribution ring pipe (17) in unit time and the air outlet quantity of the hot air discharge pipe (18) in unit time are controlled by an air quantity regulating valve (33);
SS002, drying operation: during operation, the pump body (9) feeds the feeding pipe (10) at a set speed, the hot air supply mechanism (4), the cold air supply mechanism (2), the cyclone dust collector (5), the pulse bag filter (6) and the negative pressure air suction mechanism (3) are operated, after the hot air supply mechanism (4) is operated, hot air with a specified temperature is then sent to the drying inner cavity (15), after the cold air supply mechanism (2) is operated, cold air with a specified temperature is sent to the cooling outer cavity (14), the cyclone dust collector (5) and the pulse bag filter (6) carry out filtering dust removal operation on the discharged hot air, the negative pressure air suction mechanism (3) provides a negative pressure air source for the device, when the spray drying mechanism (7) is operated, the spray drying mechanism (7) is operated synchronously operated, the main driving motor (29) is controlled by the controller to operate at the set speed, after the main driving motor (29) is operated, the outer shaft (20) is driven to move forward at the set speed, the cloth material distribution shaft tube (23), the spiral cleaning shaft tube (31) and the cloth dust collector (21) are driven to move forward at the set speed, the spiral cleaning shaft tube (31) is driven to move backward at the set speed, after the spiral cleaning shaft tube (21) is driven to move forward at the set speed, the circumferential speed is driven to rotate the inner shaft tube (13) is driven to move forward at the set speed, the group of cold air blowpipes (16) are used for exhausting air at constant temperature so as to enable the cooling outer cavity (14) to keep a set cooling temperature, thereby cooling the outer wall of the inner shell (13), the atomizing nozzle component (24) is used for spraying liquid to be dried at a set speed and pressure, the group of hot air blowpipes (26) are used for exhausting air at hot temperature, then the atomized liquid is dried, and the dried powder is discharged from the discharge pipe (32).
In summary, this spray drying mechanism and chemical fertilizer production method for chemical fertilizer production, through the differential counter-rotating design of atomizer subassembly and inner shell, become traditional drying equipment's static structure and be dynamic type structure, through dynamic type structural design, can effectively reduce the fixed point contact degree and the fixed point contact time of particulate matter and inner shell, through the realization of above-mentioned effect, then effectively reduce the adhesion probability of particulate matter in the inside of the device, simultaneously through the synchronous rotatory design of atomizer subassembly and hot-blast spray tube, there is the wind dead angle and there is the probability at dry dead angle when can effectively reducing the device to dry, simultaneously through its rotatable formula design, can form whirlwind air-out effect, through the whirlwind state, can play automatic wind-force to the impurity of adhesion in the inner shell inside clear effect, simultaneously through vibrating motor's setting, can strengthen the automatic whereabouts and the unloading speed of material through the realization of above-mentioned effect, thereby effectively avoid the wall sticking phenomenon that takes place when the device spray drying, then effectively improve the spray drying effect of the device.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. A spray drying mechanism for fertilizer production and a fertilizer production method are characterized in that: comprises a feeding mechanism (1), a cold air feeding mechanism (2), a negative pressure air suction mechanism (3), a hot air feeding mechanism (4), a cyclone dust collector (5), a pulse bag filter (6) and a spray drying mechanism (7); one end of the air inlets of the cold air supply mechanism (2) and the hot air supply mechanism (4) is connected with an air filter (8) through a pipeline; one end of a discharge hole of the feeding mechanism (1) is connected with a pump body (9); one end of a discharge hole of the pump body (9) is rotationally communicated with the spray drying mechanism (7) through a feed pipe (10); one end of an air outlet of the hot air supply mechanism (4) is rotationally communicated with the spray drying mechanism (7) through an air supply pipe (11); one end of an air outlet of the spray drying mechanism (7) is fixedly communicated with the cyclone dust collector (5); one end of the outlet of the cyclone dust collector (5) is communicated with the pulse bag filter (6); one end of the outlet of the pulse bag filter (6) is communicated with the negative pressure air draft mechanism (3), and the pulse bag filter is characterized in that: the spray drying mechanism (7) comprises an outer housing (12); an inner shell (13) is rotatably connected to the inner wall of the outer shell (12); a cooling outer cavity (14) is fixedly arranged between the opposite surfaces of the outer shell (12) and the inner shell (13); a drying inner cavity (15) is fixedly arranged in the inner shell (13); a group of cold air blowing pipes (16) and air distributing ring pipes (17) which are distributed in a circumferential array are fixedly arranged on the peripheral side surface of the outer shell (12); one end of the group of cold air blowing pipes (16) is fixedly communicated with the air distributing ring pipe (17); one end of an air inlet of the air distribution ring pipe (17) is fixedly communicated with the cold air supply mechanism (2); one end of the air outlet of the group of cold air blowing pipes (16) is fixedly communicated with the cooling outer cavity (14); the peripheral side surface of the outer shell (12) is also fixedly provided with a hot air discharge pipe (18) communicated with the drying inner cavity (15); one end of an air outlet of the hot air exhaust pipe (18) is fixedly communicated with the cyclone dust collector (5); the axle center position of the outer shell (12) is rotationally connected with an outer shaft (20) through a bearing; the axial center of the inner shell (13) is rotatably connected with a wind distribution shaft tube (21) through a bearing; the peripheral side surface of the outer shaft (20) is fixedly connected with the inner shell (13) through a bracket (22); the inner wall of the outer shaft (20) is rotatably connected with a cloth shaft tube (23) through a bearing; one end of the feeding pipe (10) is rotationally communicated with the cloth shaft pipe (23); one end of the air supply pipe (11) is rotationally communicated with the air distribution shaft pipe (21); one end of the cloth shaft tube (23) extends to the inside of the inner shell (13); an atomization nozzle assembly (24) is fixedly communicated with the bottom end of the material distribution shaft tube (23); the top end of the air distribution shaft tube (21) is fixedly connected with the atomizing nozzle component (24).
2. The spray drying mechanism for fertilizer production and the fertilizer production method according to claim 1, wherein: the top surface of the outer shell (12) is fixedly connected with a support plate (28); the surface of the support plate (28) is fixedly connected with a main driving motor (29); one end of an output shaft of the main driving motor (29) is respectively connected with the outer shaft (20) and the cloth shaft tube (23) in a transmission way through two driving bevel gears; two groups of connecting rods (30) are fixedly arranged on the peripheral side surface of the outer shaft (20); the peripheral side surface of the wind distribution shaft tube (21) is fixedly connected with a spiral cleaning scraping blade (31) through a connecting rod (30); the peripheral side surface of the spiral cleaning blade (31) is attached to the inner shell (13).
3. The spray drying mechanism for fertilizer production and the fertilizer production method according to claim 1, wherein: the peripheral side surface of the wind distribution shaft tube (21) is fixedly communicated with a group of wind distributing heads (25) distributed in a linear array; a group of hot air spray pipes (26) distributed in a circumferential array are fixedly communicated with the peripheral side surfaces of the wind dividing heads (25); two groups of symmetrically arranged hot air spray holes (27) are formed in the peripheral side face of the hot air spray pipe (26); the bottom of the outer shell (12) is fixedly connected with two symmetrically arranged vibrating motors (19).
4. The spray drying mechanism for fertilizer production and the fertilizer production method according to claim 1, wherein: a discharge pipe (32) communicated with the drying inner cavity (15) is fixedly arranged at the bottom of the outer shell (12); a valve is fixedly arranged on the peripheral side surface of the discharge pipe (32); an air quantity adjusting valve (33) is arranged at the communication position of the hot air discharge pipe (18) and the negative pressure air suction mechanism (3) and the communication position of the air distribution ring pipe (17) and the cold air supply mechanism (2).
5. The spray drying mechanism for fertilizer production and the fertilizer production method according to claim 1, wherein: the atomizer assembly (24) includes a spray base (34); the upper end surface of the spraying seat (34) is fixedly communicated with the cloth shaft tube (23); the bottom surface of the spraying seat (34) is fixedly connected with the air distribution shaft tube (21); an air outlet inclined plane (35) is fixedly arranged on the peripheral side surface of the spraying seat (34); a plurality of groups of discharging spray holes (36) distributed in a circumferential array are formed in the peripheral side face of the air outlet inclined plane (35); the air outlet inclined plane (35) is a 45-degree chamfer inclined plane.
6. The spray drying mechanism for fertilizer production and the fertilizer production method according to claim 1, wherein: driven bevel gears (37) are fixedly connected to the peripheral sides of the outer shaft (20) and the cloth shaft tube (23); the two driven bevel gears (37) are symmetrically arranged by taking the plane of the axis of the main driving motor (29) as the axis; the cloth shaft tube (23) is of a hollow tubular structure with two open ends; the wind distribution shaft tube (21) is of a hollow tubular structure with an opening at the lower end and a closed upper end.
7. The spray drying mechanism for fertilizer production and the fertilizer production method according to claim 1, wherein: the included angle between the axis of the hot air spray pipe (26) and the axis of the inner shell (13) is 15-25 degrees; the inner shell (13) is of a hollow cylindrical structure with two open ends.
8. The spray drying mechanism for fertilizer production and the fertilizer production method according to claim 1, wherein: the top surface of the outer shell (12) is fixedly provided with a first temperature sensor matched with the drying inner cavity (15); the peripheral side surface of the outer shell (12) is fixedly provided with a second temperature sensor matched with the cooling outer cavity (14); the first temperature sensor detection end extends to the interior of the drying cavity (15); the second temperature sensor detection end extends to the inside of the cooling outer cavity (14); a group of air injection nozzles which are distributed in a linear array and are communicated with the cooling outer cavity (14) are fixedly communicated with one surface of the group of cold air blowing pipes (16) opposite to the cooling outer cavity (14); the support plate (28) is of an L-shaped structure; the material guiding seat is fixedly arranged on the circumferential side surface of the wind distribution shaft tube (21) and corresponds to the material discharging tube (32).
9. The spray drying mechanism for fertilizer production and the fertilizer production method according to claim 1, wherein: the method comprises the following steps: SS001, lay: before the device is used, the device is arranged in the state shown in figure 1, before the device works, the air outlet temperature of the hot air supply mechanism (4) and the cold air supply mechanism (2) is controlled by a controller matched with the device, and the air inlet quantity of the air distribution ring pipe (17) in unit time and the air outlet quantity of the hot air discharge pipe (18) in unit time are controlled by an air quantity regulating valve (33); SS002, drying operation: when in operation, the pump body (9) feeds the feeding pipe (10) at a set speed, the hot air supply mechanism (4), the cold air supply mechanism (2), the cyclone dust collector (5), the pulse bag filter (6) and the negative pressure air suction mechanism (3) work, after the hot air supply mechanism (4) works, hot air with specified temperature is then sent out to the drying inner cavity (15), after the cold air supply mechanism (2) works, cold air with specified temperature is sent out to the cooling outer cavity (14), the cyclone dust collector (5) and the pulse bag filter (6) carry out filtering dust removal on the discharged hot air, the negative pressure air suction mechanism (3) provides a negative pressure air source for the device, when the mechanism works, the spray drying mechanism (7) synchronously works, when the spray drying mechanism (7) works, the main driving motor (29) works at a set speed under the control of the controller, after the main driving motor (29) works, the outer shaft (20) is driven to move forward at the set speed, the cloth shaft tube (23), the atomizing nozzle assembly (24), the spiral cleaning scraping blade (31) and the cloth shaft tube (21) move reversely at the set speed, wherein the negative pressure air suction mechanism is a rotary type air suction device, the spray drying mechanism is a rotary type air suction device, and the spray drying mechanism is a rotary type air suction device, wherein
After the spiral cleaning wiper blade (31) moves circularly, the spiral cleaning wiper blade is enabled to conduct material conveying operation downwards, after the outer shaft (20) rotates, the inner shell (13) is driven to conduct forward circular movement at a set speed, a group of cold air blowing pipes (16) are enabled to be constant-temperature air outlet, and then the cooling outer cavity (14) is enabled to keep a set cooling temperature, accordingly the outer wall of the inner shell (13) is cooled, the atomizing nozzle assembly (24) jets liquid to be dried at a set speed and pressure, a group of hot air spraying pipes (26) are enabled to conduct hot air outlet, then the atomized liquid is dried, and powder after drying is discharged from the discharging pipe (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310146220.4A CN116159321A (en) | 2023-02-22 | 2023-02-22 | Spray drying mechanism for fertilizer production and fertilizer production method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310146220.4A CN116159321A (en) | 2023-02-22 | 2023-02-22 | Spray drying mechanism for fertilizer production and fertilizer production method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116159321A true CN116159321A (en) | 2023-05-26 |
Family
ID=86412924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310146220.4A Withdrawn CN116159321A (en) | 2023-02-22 | 2023-02-22 | Spray drying mechanism for fertilizer production and fertilizer production method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116159321A (en) |
-
2023
- 2023-02-22 CN CN202310146220.4A patent/CN116159321A/en not_active Withdrawn
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Application publication date: 20230526 |