CN209901230U

CN209901230U - Microbead granulation system

Info

Publication number: CN209901230U
Application number: CN201920550842.2U
Authority: CN
Inventors: 朱云峰
Original assignee: Changzhou Capitel Drying Equipment Co Ltd
Current assignee: Changzhou Capitel Drying Equipment Co Ltd
Priority date: 2019-04-22
Filing date: 2019-04-22
Publication date: 2020-01-07
Anticipated expiration: 2029-04-22

Abstract

The utility model discloses a microbead granulating system, which comprises a granulating tower, a cooling tower, a fluidized bed and an air supply opening which are distributed from top to bottom in sequence, wherein an atomizing device is arranged at the opening part at the top end of the granulating tower in a matching way, a material receiving opening is arranged at the top end of one side of the granulating tower, and an upper layer atomizer and a lower layer atomizer are arranged at the positions close to the bottom end in the granulation tower in an up-and-down distributed manner, the utility model designs an integrated structure of the granulation device and the fluidized bed, the granulated material is cooled for the second time, when a solid shell layer with enough hardness is formed on the surface of the fused particles, the further solidification and cooling processes are transferred to the fluidized bed for carrying out, the height of the granulation tower can be reduced for use, the height of the device is obviously reduced, the one-time investment of equipment is greatly reduced, the power consumption for conveying the molten material is reduced after the height of the device is reduced, and the heat insulation of a conveying pipeline is reduced.

Description

Microbead granulation system

Technical Field

The utility model relates to a tower granulation field, in particular to microballon granulation system.

Background

Tower granulation is generally a tall tower and a large-diameter granulation tower, in order to ensure the complete solidification of the granules, the height of the tower is usually very high, the height of the tower sometimes depends on the size of the granules, the height of the tower is often higher when the granules are large, the tower granulation method has the advantages of simpler technology and easy operation control, but has the outstanding problem of requiring very high granulation tower, in addition, in order to reduce the height of the tower as much as possible, certain measures which are adopted in the tower device in the design and operation are new, for example, if the air intake is increased, the operation inevitably increases the carrying quantity of fine granules and the load of tail gas treatment, and the analysis of the tower granulation process shows that the height of most of the tower is consumed in the cooling stage after the solidification of the molten liquid drops, the molten granules always solidify firstly on the outer surface layer, and the heat in the granules are all released to need a longer process, to this end, we propose a microbead granulation system.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides a microballon granulation system can effectively solve the problem in the background art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a microbead granulation system comprises a granulation tower, a cooling tower, a fluidized bed and an air supplementing port which are sequentially distributed from top to bottom, wherein an atomizing device is arranged at the opening at the top end of the granulation tower in a matched manner, a material receiving port is formed in the top end of one side of the granulation tower, an upper-layer atomizer and a lower-layer atomizer are arranged at positions close to the bottom end in the granulation tower in an up-and-down distributed manner, the specifications of the upper-layer atomizer and the lower-layer atomizer are the same, a discharge port is formed in one side of the fluidized bed, a vibrating screen is arranged below the material port of the discharge port, the bottom end of the air supplementing port is connected and provided with a cooler through an air flow pipeline, and a fluidization fan is arranged,

material jar and water pitcher are installed respectively to the left and right sides of whole granulation system bottom, and through setting up material union coupling between material jar and the atomizing device, and the supporting two feed pumps of installing in discharging pipe position of material jar, the filter is installed to the partial parallel of output material way of feed pump, the both ends of water pitcher all set up the water pipe and are connected with upper atomizer and lower floor's atomizer respectively to the water pump is installed in the supporting output water pipe part of water pitcher.

Preferably, atomizing device includes buffer tank, a plurality of shower nozzles, temperature sensor, pressure sensor, manometer, thermometer, steam control valve and pressure regulating valve, the top and the bottom of buffer tank all are connected with filter and a plurality of shower nozzle respectively through the material pipe, and steam control valve, thermometer, manometer, pressure sensor, temperature sensor and pressure regulating valve install the ejection of compact direction at the material pipe in proper order, temperature sensor passes through the wire with the thermometer and is connected, pressure sensor passes through the wire with the manometer and is connected.

Preferably, still include cyclone, draught fan and tripper, pass through material piping connection between cyclone and the material receiving opening, pass through the trachea between draught fan and the cyclone and be connected, the tripper installation and cyclone's bottom.

Preferably, the device further comprises a compressed air heating tank, and the compressed air heating tank is respectively connected with the feeding pump and the filter through air pipes.

Preferably, a plurality of atomizing mouths are opened to the position that upper atomizer one side is close to the inside center of prilling tower, and has imbedded trachea and water pipe in the upper atomizer respectively, trachea one end communicates with the compressed air import that the external world set up, and the other end is connected with the atomizing mouth, water pipe one end is connected with the water pitcher, and the other end is connected with the atomizing mouth.

Preferably, the cross-section of cooling tower is the structure of falling isosceles trapezoid, and the opening has all been seted up to the both sides on cooling tower top to set up air flow pipeline and external intercommunication in the opening.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the system is provided with the water atomization device, so that natural air entering a cooling tower is cooled by a vaporization heat absorption principle at high temperature in summer, the temperature requirement of the whole system is met, compressed air enters a granulation tower to ensure that an atomization port realizes a spray effect, and under the condition that materials are fully exchanged with natural cold air, the materials are rapidly solidified into small-particle products and fall to the bottom of the tower, and meanwhile, the operation cost is also reduced;

2. through design prilling granulator and fluidized bed integral type structure, carry out the secondary cooling to the material of granulation, after the solid shell that the fused particle surface formed enough hard goes on in transferring to the fluidized bed with the cooling process that will go on, the high reducible use of prilling tower, the device highly is showing and is reducing, except reducing equipment one-time investment by a wide margin, still reduced the power consumption of carrying the fused material after the device highly reduces, reduced pipeline's heat preservation.

3. Through cooler and the fluidization fan that sets up, in the mend wind gap that tower body lower part straight section was equipped with, let in normal atmospheric temperature air admission system in, the stable work of entire system has been guaranteed to the interior wind volume wind pressure of balanced tower.

Drawings

FIG. 1 is a flow chart of the pipeline and the instrument of the overall structure of a bead granulation system of the present invention;

FIG. 2 is a partial front view of a bead pelletizing system according to the present invention;

FIG. 3 is an enlarged schematic view of a partial structure A of FIG. 2 of a bead granulation system according to the present invention;

fig. 4 is an enlarged schematic view of a partial structure B in fig. 2 of a bead granulation system according to the present invention.

In the figure: 1. a prilling tower; 2. a material receiving port; 3. an atomizing device; 31. a buffer tank; 32. a spray head; 33. a temperature sensor; 34. a pressure sensor; 35. a pressure gauge; 36. a thermometer; 37. a steam regulating valve; 38. a pressure regulating valve; 4. a cooling tower; 5. a fluidized bed; 6. a discharge port; 7. an air supply opening; 8. vibrating screen; 9. a cyclone separator; 10. an induced draft fan; 11. an upper atomizer; 111. an atomizing port; 112. a compressed air inlet; 12. a lower atomizer; 13. a water tank; 14. a charging bucket; 15. a feed pump; 16. a filter; 17. a compressed air heating tank; 18. a cooler; 19. a fluidization fan.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

As shown in fig. 1-4, a microbead granulation system comprises a granulation tower 1, a cooling tower 4, a fluidized bed 5 and an air supply opening 7 which are sequentially distributed from top to bottom, wherein an atomization device 3 is arranged at the top end opening of the granulation tower 1 in a matching manner, a material receiving opening 2 is arranged at the top end of one side of the granulation tower 1, an upper-layer atomizer 11 and a lower-layer atomizer 12 are arranged at positions close to the bottom end in the granulation tower 1 in an up-and-down distributed manner, the specifications of the upper-layer atomizer 11 and the lower-layer atomizer 12 are the same, a material outlet 6 is arranged at one side of the fluidized bed 5, a vibrating screen 8 is arranged below the material opening of the material outlet 6, the bottom end of the air supply opening 7 is connected and provided with a cooler 18 through an air flow pipeline, a fluidized fan 19 is arranged at the position of the air flow pipeline between the cooler 18 and the air supply opening 7, and the air, normal temperature air is introduced into the system, air volume and air pressure in the tower are balanced, and stable work of the whole system is guaranteed.

Through design prilling granulator and 5 integral type structures of fluidized bed, carry out the secondary cooling to the material of granulation, after the solid shell that the fused particle surface formed enough hard, go on in further solidification and cooling process transfer fluidized bed 5, prilling tower 1 highly can reduce the use, and the device highly is showing and is reducing, except reducing the once only investment of equipment by a wide margin, has still reduced the consumption of power of carrying the fused material after the device highly reduces, has reduced pipeline's heat preservation.

Material jar 14 and water pitcher 13 are installed respectively to the left and right sides of whole granulation system bottom, and through setting up material union coupling between material jar 14 and the atomizing device 3, and the supporting two feed pumps 15 of installing in discharging pipe position of material jar 14, the filter 16 is installed to the partial parallel of output material way of feed pump 15, the both ends of water pitcher 13 all set up the water pipe and are connected with upper atomizer 11 and lower floor's atomizer 12 respectively, and the supporting water pump of installing of output water pipe part at water pitcher 13.

As shown in fig. 4, the atomizing device 3 includes a buffer tank 31, a plurality of nozzles 32, a temperature sensor 33, a pressure sensor 34, a pressure gauge 35, a temperature gauge 36, a steam control valve 37 and a pressure control valve 38, the top end and the bottom end of the buffer tank 31 are respectively connected with the filter 16 and the plurality of nozzles 32 through a material pipe, and the steam control valve 37, the temperature gauge 36, the pressure gauge 35, the pressure sensor 34, the temperature sensor 33 and the pressure control valve 38 are sequentially installed in the discharging direction of the material pipe, the temperature sensor 33 is connected with the temperature gauge 36 through a wire, and the pressure sensor 34 is connected with the pressure gauge 35 through a wire.

This system is through being equipped with water atomization device 3, and when high temperature in summer, through the vaporization heat absorption principle, the natural air cooling that makes entering cooling tower 4 satisfies entire system's temperature requirement, and compressed air guarantees in entering granulation tower 1 that atomizing mouth 111 realizes the spraying effect, and under the circumstances of material and the abundant exchange of natural cold air, the rapid solidification becomes the tiny particle product and falls into the bottom of the tower, has also reduced the running cost simultaneously.

As shown in figure 1, still include cyclone 9, draught fan 10 and tripper, cyclone 9 and receive between the material mouthful 2 through material union coupling, through the trachea connection between draught fan 10 and the cyclone 9, the bottom of tripper installation and cyclone 9, for guaranteeing the normal operating in summer high temperature season system, cohere each other for preventing the granule in the system, be equipped with the fine powder at prilling tower 1 inner wall top and return the powder device, so after some fine powders of great granule surface adsorption, the surface is more loose, the cooling rate of fine powder quickening granule, tail gas and a small amount of fine powder that does not fall into the bottom of the tower are received by draught fan 10 suction cyclone 9.

As shown in fig. 3, a compressed air heating tank 17 is further included, and the compressed air heating tank 17 is connected to the supply pump 15 and the filter 16 through air pipes, respectively.

As shown in fig. 2, a plurality of atomizing openings 111 are formed in a position, close to the center inside the prilling tower 1, of one side of the upper atomizer 11, an air pipe and a water pipe are respectively embedded into the upper atomizer 11, one end of the air pipe is communicated with a compressed air inlet 112 arranged outside, the other end of the air pipe is connected with the atomizing openings 111, one end of the water pipe is connected with the water tank 13, and the other end of the water pipe is connected with the atomizing openings 111.

As shown in fig. 1, the cross section of the cooling tower 4 is an inverted isosceles trapezoid structure, and both sides of the top end of the cooling tower 4 are provided with openings, and an airflow pipeline is arranged in each opening and communicated with the outside.

It should be noted that the utility model relates to a micro bead granulation system, the oil wax material separated by the oil-water separator enters the whole system after heating and dehydration, the feeding temperature is controlled, the oil wax material is conveyed to the spray head 32 installed on the top of the granulation tower 1 by the feeding pump 15, the feeding pressure is adjusted by the pressure adjusting valve 38 to control the feeding flow, the feed liquid is atomized into fine fog drop groups at the spray head 32, the surface area of the feed liquid is greatly increased,

then under the condition of fully exchanging with cold air, the product quickly solidifies into small granules and falls into the bottom of the whole tower, in order to make the product completely cool and solidify, the bottom of the whole tower is provided with a fluidized bed 5, the air cooled by the heat exchange of frozen salt water is sent into the fluidized bed 5 by a fluidized bed blower, the granulated material is secondarily cooled, the straight section at the lower part of the tower body is provided with an air supplement port 7, the normal temperature air enters the tower body, the air quantity and the air pressure in the balancing tower are balanced, the middle part of the granulating tower 1 is provided with a water atomization device, the natural air entering the cooling tower 4 is cooled by the vaporization heat absorption principle at high temperature in summer, the temperature requirement of the whole system is met, the compressed air enters the granulating tower 1 to ensure the atomization port 111 to realize the spraying effect, under the condition of fully exchanging the material with the natural cold,

tail gas and a small amount of fine powder that does not fall into the bottom of the tower are drawn into cyclone 9 by draught fan 10 and are received the material, the material after the cooling is followed fluidized bed 5 and is gone out, get into shale shaker 8, the finished product gets into the feed bin, by automatic packaging machine packing, in the coarse fodder retrieves return system, whole system adopts DCS control system, the effective control drum induced air amount, control feeding temperature, control atomizing water flow, accurate control feeding pressure, flow, realize the chain control of atomized water, drum induced air, feeding.

The system has the following characteristics:

(1) the height of the device is obviously reduced, and besides one-time investment of equipment is greatly reduced, power consumption for conveying the molten materials is reduced after the height of the device is reduced, heat preservation of a conveying pipeline is reduced, and melt conveying is a trouble problem in industrial practice.

(2) The aerodynamic consumption is reduced, although the fluidized bed 5 needs to be additionally arranged to increase the corresponding fluid resistance, the residence time in the fluidized bed 5 is very long compared with the free fall of particles, and the height of a required bed layer is not large, so the proportion of the resistance increased by the fluidized bed 5 in the whole system resistance is not large, and on the other hand, the fluidized bed 5 can ensure sufficient cooling, and the device can be operated under a small air quantity, so the aerodynamic consumption is lower than that of the simple tower granulation.

(3) The product can be fully cooled, and because the residence time in the fluidized bed 5 is long, the product can be cooled to about 30 ℃ within a reasonable operating condition range, and the problem of possible caking of the packaged product in the storage process can be completely avoided.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a microballon granulation system, includes prilling tower (1), cooling tower (4), fluidized bed (5) and moisturizing wind gap (7) that from the top distributes in proper order, its characterized in that: an atomizing device (3) is installed at the top end opening of the granulation tower (1) in a matched manner, a material receiving opening (2) is formed in the top end of one side of the granulation tower (1), an upper-layer atomizer (11) and a lower-layer atomizer (12) are installed at the position close to the bottom end in the granulation tower (1) in an up-and-down distributed manner, the specifications of the upper-layer atomizer (11) and the lower-layer atomizer (12) are the same, a material outlet (6) is formed in one side of the fluidized bed (5), a vibrating screen (8) is arranged below the material opening of the material outlet (6), a cooler (18) is installed at the bottom end of the air supplementing opening (7) through an air flow pipeline in a connected manner, and a fluidized fan (19) is installed at the position of the air flow pipeline between,

material jar (14) and water pitcher (13) are installed respectively to the left and right sides of whole granulation system bottom, and through setting up material union coupling between material jar (14) and atomizing device (3), and the supporting two feed pumps (15) of installing in the discharging pipe position of material jar (14), filter (16) are installed to the partial parallel of output material way of feed pump (15), the both ends of water pitcher (13) all set up the water pipe and are connected with upper atomizer (11) and lower floor atomizer (12) respectively to the water pump is installed in the supporting output water pipe part of water pitcher (13).

2. A bead pelletizing system according to claim 1, characterized in that: atomizing device (3) are including buffer tank (31), a plurality of shower nozzle (32), temperature sensor (33), pressure sensor (34), manometer (35), thermometer (36), steam control valve (37) and pressure regulating valve (38), the top and the bottom of buffer tank (31) all are connected with filter (16) and a plurality of shower nozzle (32) respectively through the material pipe, and steam control valve (37), thermometer (36), manometer (35), pressure sensor (34), temperature sensor (33) and pressure control valve (38) install the ejection of compact direction at the material pipe in proper order, temperature sensor (33) are connected through the wire with thermometer (36), pressure sensor (34) are connected through the wire with manometer (35).

3. A bead pelletizing system according to claim 1, characterized in that: still include cyclone (9), draught fan (10) and tripper, through material union coupling between cyclone (9) and the material receiving opening (2), be connected through the trachea between draught fan (10) and cyclone (9), the bottom of tripper installation and cyclone (9).

4. A bead pelletizing system according to claim 1, characterized in that: the device also comprises a compressed air heating tank (17), and the compressed air heating tank (17) is respectively connected with the feeding pump (15) and the filter (16) through air pipes.

5. A bead pelletizing system according to claim 1, characterized in that: a plurality of atomizing mouths (111) are seted up to the position that upper atomizer (11) one side is close to granulation tower (1) inside center, and the embedding has inserted trachea and water pipe in upper atomizer (11) respectively, trachea one end communicates with external compressed air inlet (112) that sets up, and the other end is connected with atomizing mouth (111), water pipe one end is connected with water pitcher (13), and the other end is connected with atomizing mouth (111).

6. A bead pelletizing system according to claim 1, characterized in that: the cross-section of cooling tower (4) is for falling isosceles trapezoid structure, and the opening has all been seted up to the both sides on cooling tower (4) top to set up air flow pipeline and external intercommunication in the opening.