CN113237289A - Polyacrylamide drying equipment - Google Patents

Polyacrylamide drying equipment Download PDF

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Publication number
CN113237289A
CN113237289A CN202010206761.8A CN202010206761A CN113237289A CN 113237289 A CN113237289 A CN 113237289A CN 202010206761 A CN202010206761 A CN 202010206761A CN 113237289 A CN113237289 A CN 113237289A
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CN
China
Prior art keywords
polyacrylamide
dryer
stirring shaft
air inlet
drying
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010206761.8A
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Chinese (zh)
Inventor
朱秀伟
杜滨
刘法鑫
刘峰
张肖肖
张晓伟
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Shandong Tianli Energy Co ltd
Original Assignee
Shandong Tianli Energy Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shandong Tianli Energy Co ltd filed Critical Shandong Tianli Energy Co ltd
Priority to CN202010206761.8A priority Critical patent/CN113237289A/en
Publication of CN113237289A publication Critical patent/CN113237289A/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B3/00—Drying solid materials or objects by processes involving the application of heat
    • F26B3/02—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air
    • F26B3/06—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour flowing through the materials or objects to be dried
    • F26B3/08—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour flowing through the materials or objects to be dried so as to loosen them, e.g. to form a fluidised bed
    • F26B3/092—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour flowing through the materials or objects to be dried so as to loosen them, e.g. to form a fluidised bed agitating the fluidised bed, e.g. by vibrating or pulsating
    • F26B3/0923—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour flowing through the materials or objects to be dried so as to loosen them, e.g. to form a fluidised bed agitating the fluidised bed, e.g. by vibrating or pulsating by mechanical means, e.g. vibrated plate, stirrer
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/001—Drying-air generating units, e.g. movable, independent of drying enclosure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/004—Nozzle assemblies; Air knives; Air distributors; Blow boxes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B23/00—Heating arrangements
    • F26B23/10—Heating arrangements using tubes or passages containing heated fluids, e.g. acting as radiative elements; Closed-loop systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
    • F26B25/005—Treatment of dryer exhaust gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
    • F26B25/04—Agitating, stirring, or scraping devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B3/00—Drying solid materials or objects by processes involving the application of heat
    • F26B3/02—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air
    • F26B3/06—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour flowing through the materials or objects to be dried
    • F26B3/08—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour flowing through the materials or objects to be dried so as to loosen them, e.g. to form a fluidised bed
    • F26B3/082—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour flowing through the materials or objects to be dried so as to loosen them, e.g. to form a fluidised bed arrangements of devices for distributing fluidising gas, e.g. grids, nozzles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B2200/00—Drying processes and machines for solid materials characterised by the specific requirements of the drying good
    • F26B2200/08—Granular materials

Abstract

The invention provides a drying device for polyacrylamide, which comprises a feeding mechanism, an air inlet mechanism and a dryer, wherein the feeding mechanism is connected with the dryer and is used for inputting polyacrylamide materials into the dryer; the dryer is provided with an air inlet and an air outlet, and the air inlet mechanism is connected with the air inlet and is used for ventilating the dryer; a stirrer is arranged in the drying machine and used for stirring the polyacrylamide materials. The polyacrylamide drying equipment can stir the material particles in a fluidized state in the drying process, so that the caking of the material particles in the drying process can be avoided as much as possible, the production efficiency is improved, and the labor amount and the labor intensity of workers are reduced; also contributes to the formation and maintenance of the fluidized state of the material particles, thus reducing the requirement on the wind power introduced into the dryer; the drying capacity for polyacrylamide can also be adjusted in a larger range.

Description

Polyacrylamide drying equipment
Technical Field
The invention relates to the technical field of polyacrylamide drying, in particular to polyacrylamide drying equipment.
Background
Polyacrylamide (PAM) is a generic name for a homopolymer of acrylamide or a polymer obtained by copolymerizing acrylamide with other monomers, and is widely used in industries such as oil exploitation, water treatment, textile, paper making, mineral separation, medicine, and agriculture.
In the prior art, a fluidized bed drying process is generally adopted to dry polyacrylamide. The specific process is as follows: putting the material into a fluidized bed, and introducing hot air into the fluidized bed so as to blow up the material to form a fluidized state; and in the continuous fluidization process of the materials, the heating is completed, the moisture in the materials is vaporized, and the materials are discharged along with the gas.
However, the following problems exist in the process of drying polyacrylamide by adopting the method:
surface viscosity is great behind the polyacrylamide polymerization, and even add the dispersant after the conventional granulation, the particle distribution is even seen on the surface, and the dispersion is better, but back in drying process, because the temperature rise, the dispersant can take place to volatilize to can lead to polyacrylamide caking phenomenon to appear, drying process will be forced to shut down, clears up, has reduced the efficiency of drying operation on the one hand, and on the other hand has still increased amount of labour and intensity of labour.
Disclosure of Invention
The invention aims to provide drying equipment for polyacrylamide, which can solve the technical problems of low drying efficiency, increased labor capacity and increased labor intensity caused by material caking in the prior art.
The invention provides a drying device for polyacrylamide, which comprises a feeding mechanism, an air inlet mechanism and a dryer, wherein the feeding mechanism is connected with the dryer and is used for inputting polyacrylamide materials into the dryer; the dryer is provided with an air inlet and an air outlet, and the air inlet mechanism is connected with the air inlet and used for ventilating the dryer; a stirrer is arranged in the drying machine and used for stirring the polyacrylamide materials.
The dryer is provided with a plurality of air inlets; the air inlet mechanism comprises an air blower, a first heat source and an air inlet pipe; one end of the air inlet pipe is connected with the blower, and the other end of the air inlet pipe is respectively connected with the plurality of air inlets; the first heat source is used for heating the gas in the air inlet pipe.
The air inlets are arranged at the lower part of the dryer and are uniformly arranged at intervals in the horizontal circumferential direction of the dryer.
The stirrer comprises a stirring shaft and a driving unit, wherein the driving unit is connected with the stirring shaft and used for driving the stirring shaft to rotate; and a plurality of blades are arranged on the stirring shaft along the axial direction of the stirring shaft.
Wherein the stirring shaft is hollow; the drying equipment for the polyacrylamide also comprises a second heat source and a heat medium pipe, wherein the heat medium pipe connects the second heat source with the hollow pore passage on the stirring shaft, and a heat medium is arranged in the heat medium pipe; the second heat source is used for heating the heating medium.
The stirrer comprises a stirring shaft and a driving unit, wherein the driving unit is connected with the stirring shaft and used for driving the stirring shaft to rotate; a plurality of blades are arranged on the stirring shaft along the axial direction of the stirring shaft, and the stirring shaft is hollow; a heat medium pipe is connected between the first heat source and the hollow pore passage on the stirring shaft, a heat medium is arranged in the heat medium pipe, and the first heat source is also used for heating the heat medium.
Wherein, a plurality of the blades are arranged in one or a plurality of spiral lines in the axial direction of the stirring shaft.
Wherein the blades are arranged obliquely with respect to the axial direction of the stirring shaft.
Wherein the angle of the axial inclination of the blades relative to the stirring shaft is 30-60 degrees.
The drying equipment for the polyacrylamide further comprises a dust removal mechanism, and the dust removal mechanism is arranged at an air outlet of the dryer.
The drying equipment for polyacrylamide provided by the invention has the following beneficial effects:
the stirrer is arranged in the drying machine of the polyacrylamide drying equipment, and can stir the material particles in a fluidized state in the drying process, so that the caking of the material particles in the drying process can be avoided as much as possible, the technological process can be continuously carried out, the drying operation cannot be interrupted or stopped, the production efficiency is improved, and the labor amount and the labor intensity of workers are reduced.
Meanwhile, the stirrer is arranged in the dryer and is used for stirring the material particles in the drying process, and the formation and the maintenance of the fluidized state of the material particles are facilitated, so that the requirement on the wind power introduced into the dryer is reduced.
Moreover, as the stirrer is used for assisting in forming and maintaining the fluidized state, related parameters of wind power introduced into the dryer can be adjusted within a larger range, so that different feeding loads can be adapted, and when the feeding amount is low, the energy efficiency and the operation cost can be obviously reduced, so that the drying capacity of the polyacrylamide can be adjusted within a larger range.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic view of a drying apparatus for polyacrylamide according to a first embodiment of the present invention;
FIG. 2 is a schematic view showing the structure of a dryer in the apparatus for producing polyacrylamide shown in FIG. 1;
FIG. 3 is a schematic perspective view of a stirring shaft in the dryer shown in FIG. 2;
FIG. 4 is a schematic side view of a stirring shaft of a dryer in a drying apparatus for polyacrylamide according to a second embodiment of the present invention;
fig. 5 is a schematic side view of a stirring shaft of a dryer according to another embodiment of the present invention.
Icon: 10-a dryer; 100-an air inlet; 101-an air outlet; 102-an upper housing; 103-a lower shell; 104-a containment chamber; 20-a feeding mechanism; 30-an air inlet mechanism; 300-a blower; 301-a first heat source; 302-an air inlet pipe; 40-a stirrer; 400-stirring shaft; 401-a drive unit; 402-a transmission mechanism; 403-blade; 404-a blade shaft; 405-a second heat source; 406-a heat medium pipe; 50-a dust removal mechanism.
Detailed Description
The following detailed description of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the various embodiments described are not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the detailed description given below without inventive step, are within the scope of the invention as claimed.
The invention provides a drying device for polyacrylamide, which is combined with the attached drawings 1-5 of the following specific embodiments, and comprises a dryer 10, a feeding mechanism 20 and an air inlet mechanism 30. The feeding mechanism 20 is connected with the dryer 10 and is used for inputting polyacrylamide materials into the dryer 10; the drying machine 10 is provided with an air inlet 100 and an air outlet 101, and the air inlet mechanism 30 is connected with the air inlet 100 and used for ventilating the drying machine 10. A stirrer 40 is arranged in the dryer 10, and the stirrer 40 is used for stirring the polyacrylamide material.
According to the drying equipment for polyacrylamide provided by the invention, the stirrer 40 is arranged in the dryer 10, and material particles in a fluidized state can be stirred in the drying process, so that the caking of the material particles in the drying process can be avoided as much as possible, the technological process can be continuously carried out without interrupting or stopping the drying operation, the production efficiency is improved, and the labor amount and the labor intensity of workers are reduced.
Meanwhile, the stirrer 40 is arranged in the dryer 10, and the stirrer 40 stirs the material particles in the drying process, and is also beneficial to forming and maintaining the fluidization state of the material particles, so that the requirement on wind power introduced into the dryer is reduced.
Furthermore, due to the formation and maintenance of the fluidized state assisted by the agitator 40, the parameters related to the wind force introduced into the dryer 10 can be adjusted within a larger range, so that different feeding loads can be adapted, and when the feeding amount is low, the energy efficiency and the operation cost can be significantly reduced, so that the drying capacity of polyacrylamide can be adjusted within a larger range.
In the first embodiment of the apparatus for drying polyacrylamide, as shown in fig. 1, the apparatus for drying polyacrylamide includes a dryer 10, a feeding mechanism 20, an air intake mechanism 30, a stirrer 40, and a dust removing mechanism 50.
As shown in fig. 2 and 3, the dryer 10 includes an upper casing 102 and a lower casing 103, a receiving chamber 104 is formed between the upper casing 102 and the lower casing 103, and an air inlet 100, an air outlet 101, and a feed inlet are formed on the upper casing 102 and the lower casing 103. Specifically, the number of the intake ports 100 is plural.
The feeding mechanism 20 is connected to a feeding port of the dryer 10, and is used for feeding polyacrylamide into the containing chamber 104 in the dryer 10.
The air intake mechanism 30 includes a blower 300, a first heat source 301, and an air intake duct 302. One end of the air inlet pipe 302 is connected to the blower 300, and the other end is connected to the plurality of air inlets 100. The first heat source 301 is used for heating the air in the air inlet pipe 302. Thus, the blower 300 can supply hot air into the chamber 104 through the air inlet duct 302, and the hot air can blow up the material fed into the chamber 104 by the feeding mechanism 20 to form a fluidized state.
The first heat source 301 may be specifically a heat medium circulation heat exchange device or a combustion heating device. The heat medium circulating heat exchange device transfers external heat to the gas in the air inlet pipe 302, so that the temperature of the gas in the air inlet pipe 302 is increased, and the gas in the air inlet pipe 302 is subjected to heat exchange by using steam, heat conduction oil and the like as heat exchange media to increase the temperature of the gas; the combustion heating device heats the air in the air inlet pipe 302 directly to raise the temperature thereof, such as a natural gas pipeline burner. The air with the temperature raised in the air inlet pipe 302 is introduced into the accommodating chamber 104, and in the process of blowing up the material, moisture contained in the material is rapidly gasified, so that the material is dried.
As shown in fig. 2, a plurality of the air inlets 100 are disposed on the lower housing 103 and are uniformly spaced in the horizontal circumferential direction. The air discharge opening 101 is provided on the upper case 102. The arrangement is such that hot air can be introduced into the lower part of the dryer 10, and the hot air flows upwards and is discharged from the upper air outlet 101, and in the process, the materials are blown up from bottom to top to form a fluidized state.
As shown in fig. 2, an agitator 40 is disposed in the receiving chamber 104 of the dryer 10, and the agitator 40 is used for agitating the polyacrylamide material. Specifically, the stirrer 40 comprises a stirring shaft 400 and a driving unit 401, wherein the driving unit 401 is connected with the stirring shaft 400 and is used for driving the stirring shaft 400 to rotate. The driving unit 401 may be specifically a motor. A transmission mechanism 402 may be further disposed between the driving unit 401 and the stirring shaft 400, and the transmission mechanism 402 may be a chain.
The stirring shaft 400 is provided with a plurality of blades 403 along the axial direction thereof. When the driving unit 401 drives the stirring shaft 400 to rotate, the blades 403 arranged on the stirring shaft 400 contact with the material in the accommodating chamber 104 during the synchronous rotation and stir the material. The stirring of the materials can break the materials which are agglomerated together, and the process can be continuously carried out, so that the interruption caused by agglomeration among the materials is avoided, the machine does not need to be stopped for cleaning, the production efficiency is improved, and the labor amount and the labor intensity of workers are reduced; on the other hand, the stirring of the material can be realized, and the formation and maintenance of the fluidized state of the material can be facilitated, so that the requirement on the wind force for leading the air inlet pipe 302 into the accommodating chamber 104 can be reduced. Meanwhile, under the condition that wind power is reduced, collision among materials can be reduced, and the problems that the materials are broken due to high-speed and high-frequency collision among the materials are avoided. On the other hand, when the feeding amount is in a low load state, the stirrer 40 assists to form the fluidized state, and the fluidized state can be formed only by relatively low wind power, at the moment, the air inlet amount of the air inlet pipe 302 which is controlled to be introduced into the accommodating chamber 104 is reduced, so that the energy consumption of equipment operation can be reduced, and the cost is reduced.
Specifically, a plurality of blade shafts 404 are arranged on the stirring shaft 400 along the axial direction thereof, each blade shaft 404 radially penetrates through the stirring shaft 400, and two ends of each blade shaft 404 are respectively provided with one blade 403; further, the plurality of blade shafts 404 are sequentially shifted in the axial direction of the stirring shaft 400 so that the plurality of blades 403 form two helical lines in the axial direction of the stirring shaft 400. Also, as shown in fig. 3, the blades 403 are disposed obliquely with respect to the axial direction of the stirring shaft 400. Set up like this when (mixing) shaft 400 rotates, blade 403 not only can act on the material in the axial of (mixing) shaft 400, pat and stir it, meanwhile, still can promote the material in the axial of (mixing) shaft 400 and remove, push the material to this moving direction ascending next blade 403 department, and just in time with being in this next blade 403 contact of rotation in-process, pat and stir, when a plurality of blades 403 patted the material in proper order and stir like this, can also continuously promote the material toward an orientation, this orientation specifically can be the direction of discharge end, just so be convenient for outwards export the material, directly carry out processes such as subsequent packing. Compared with the prior art, the method can save the link of pushing the materials outwards, thereby reducing the energy consumption of equipment operation. Specifically, the inclination angle of the blades relative to the axial direction of the stirring shaft may be 30 to 60 degrees, and preferably 30 to 45 degrees.
In other embodiments of this embodiment, the plurality of blades 403 may also be in a spiral pattern or a pattern of three or more spirals in the axial direction of the stirring shaft 400.
As shown in fig. 1, the dust removing mechanism 50 is provided at the air discharge opening 101 of the dryer 10. Specifically, the dust removing mechanism 50 includes a dry dust collector connected to the air outlet 101 and a wet dust collector connected to the dry dust collector.
In the second embodiment of the apparatus for drying polyacrylamide, as shown in fig. 4, the same as the first embodiment described above includes a dryer 10, a feeding mechanism 20, an air intake mechanism 30, and a stirrer 40. Only the differences between this embodiment and the first embodiment described above will be described in detail, and the same parts will not be described again.
In the present embodiment, as shown in fig. 4, the drying apparatus for polyacrylamide further includes a second heat source 405 and a heat medium pipe 406. The stirring shaft 400 is hollow, a heat medium pipe 406 connects a second heat source 405 with the hollow pore passage on the stirring shaft 400, and a heat medium is arranged in the heat medium pipe 406; the second heat source 405 is used to heat the heating medium.
In this embodiment, the heat medium in the heat medium pipe 406 is heated by the second heat source 405, and the heat medium flows into the stirring shaft 400 to heat and dry the material in the stirring process, so that the drying of the material does not depend on the hot air introduced into the accommodating chamber 104, the way for drying the material is increased, the drying efficiency of the material can be improved, and the capacity for drying the material by the drying equipment is improved.
In the present embodiment, the heat medium in the heat medium pipe 406 is selected from a fluid substance having a large heat capacity, such as gas or heat transfer oil, and when such a fluid substance enters the stirring shaft 400, the heating effect on the stirring shaft 400 is more significant, so that the heating and drying effects of the stirring shaft 400 on the material can be better exerted.
Furthermore, when the heat medium in the heat medium pipe 406 is steam, in the other embodiment of the present embodiment, unlike the embodiment shown in fig. 4, the heat medium flowing out from the outlet of the stirring shaft 400 can be directly collected in the container for other purposes without being reheated into the stirring shaft 400, so that the arrangement of the pipes can be simplified, and the structure of the apparatus can be simplified accordingly.
In another preferred embodiment of the present invention, as shown in fig. 5, the hollow hole of the stirring shaft 400 may be directly connected to the first heat source 301, and the heat medium may be heated by the first heat source 301, and the heat medium may flow into the hollow hole of the stirring shaft 400 to heat and dry the material during the stirring process. This arrangement eliminates a separate heat source device, thereby reducing the cost of the device. In this case, the first heat source 301 is a heat medium circulating heat exchange device, and is not a combustion heating device, because the combustion heating device, such as a natural gas pipeline burner, generates high-temperature gas after combustion and enters the hollow hole of the stirring shaft 400, and the heating effect on the stirring shaft 400 is not obvious, so that the stirring shaft 400 cannot heat and dry the material well. Therefore, the first heat source 301 is a heat medium circulation heat exchanger, and the heat medium is a fluid substance with large heat capacity, such as steam or heat transfer oil.
Of course, when the heating medium in the heating medium pipe 406 is steam, the following modifications are possible with the embodiment shown in fig. 5: when the heating medium flows out from the outlet of the stirring shaft 400, the heating medium can be directly collected in the container for other purposes without being reheated into the stirring shaft 400 again, so that the arrangement of pipelines can be simplified, and the structure of the equipment is correspondingly simplified.
In summary, the stirrer 40 is disposed in the dryer 10 of the drying apparatus for polyacrylamide according to the present invention, and can stir the material in a fluidized state during the drying process, so as to avoid the material from caking during the drying process as much as possible, so that the process can be continuously performed without interruption and interruption of the drying operation, improve the production efficiency, and reduce the labor intensity and labor intensity of workers. Meanwhile, the stirrer 40 is arranged in the dryer 10, and the stirrer 40 is used for stirring the materials in the drying process and is also beneficial to forming and maintaining the fluidized state of the materials, so that the requirement on the wind power introduced into the dryer 10 is reduced. Furthermore, due to the formation and maintenance of the fluidized state assisted by the agitator 40, the parameters related to the wind force introduced into the dryer 10 can be adjusted within a larger range, so that different feeding loads can be adapted, and when the feeding amount is low, the energy efficiency and the operation cost can be significantly reduced, so that the drying capacity of polyacrylamide can be adjusted within a larger range.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims (10)

1. The polyacrylamide drying equipment comprises a feeding mechanism, an air inlet mechanism and a dryer, wherein the feeding mechanism is connected with the dryer and is used for inputting polyacrylamide materials into the dryer; the dryer is provided with an air inlet and an air outlet, and the air inlet mechanism is connected with the air inlet and used for ventilating the dryer; the drying machine is characterized in that a stirrer is arranged in the drying machine and used for stirring the polyacrylamide materials.
2. The drying equipment for polyacrylamide according to claim 1, wherein a plurality of air inlets are arranged on the drying machine;
the air inlet mechanism comprises an air blower, a first heat source and an air inlet pipe; one end of the air inlet pipe is connected with the blower, and the other end of the air inlet pipe is respectively connected with the plurality of air inlets; the first heat source is used for heating the gas in the air inlet pipe.
3. The drying apparatus for polyacrylamide according to claim 2 wherein a plurality of said air inlets are provided at a lower portion of said drying machine and are uniformly spaced in a horizontal circumferential direction of said drying machine.
4. The drying apparatus for polyacrylamide according to claim 1, wherein the agitator comprises an agitating shaft and a driving unit, the driving unit is connected with the agitating shaft and is used for driving the agitating shaft to rotate;
and a plurality of blades are arranged on the stirring shaft along the axial direction of the stirring shaft.
5. The drying apparatus for polyacrylamide according to claim 4, wherein the stirring shaft is hollow inside;
the drying equipment for the polyacrylamide also comprises a second heat source and a heat medium pipe, wherein the heat medium pipe connects the second heat source with the hollow pore passage on the stirring shaft, and a heat medium is arranged in the heat medium pipe; the second heat source is used for heating the heating medium.
6. The drying apparatus for polyacrylamide according to claim 2, wherein the agitator comprises an agitating shaft and a driving unit, the driving unit is connected with the agitating shaft and is used for driving the agitating shaft to rotate;
a plurality of blades are arranged on the stirring shaft along the axial direction of the stirring shaft, and the stirring shaft is hollow;
a heat medium pipe is connected between the first heat source and the hollow pore passage on the stirring shaft, a heat medium is arranged in the heat medium pipe, and the first heat source is also used for heating the heat medium.
7. The drying apparatus for polyacrylamide according to any one of claims 4-6, wherein a plurality of said blades are arranged in one or more spirals in the axial direction of said stirring shaft.
8. The polyacrylamide drying apparatus according to any one of claims 4-6, wherein said blades are disposed obliquely with respect to the axial direction of said stirring shaft.
9. The drying apparatus for polyacrylamide according to claim 8 wherein the angle of inclination of said blades with respect to the axial direction of said stirring shaft is 30 to 60 degrees.
10. The drying apparatus for polyacrylamide according to claim 1, further comprising a dust removing mechanism provided at an air outlet of the dryer.
CN202010206761.8A 2020-03-23 2020-03-23 Polyacrylamide drying equipment Pending CN113237289A (en)

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Application Number Priority Date Filing Date Title
CN202010206761.8A CN113237289A (en) 2020-03-23 2020-03-23 Polyacrylamide drying equipment

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Application Number Priority Date Filing Date Title
CN202010206761.8A CN113237289A (en) 2020-03-23 2020-03-23 Polyacrylamide drying equipment

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CN204678852U (en) * 2015-05-24 2015-09-30 陈斌 A kind of material drier
CN105276939A (en) * 2015-11-11 2016-01-27 上海复洁环保科技股份有限公司 Stirring type low temperature vacuum dewatering desiccation equipment and process thereof
CN205119701U (en) * 2015-10-27 2016-03-30 平顶山金晶生物科技有限公司 Soluble soybean polysaccharide rake dryer for drying
KR20160138877A (en) * 2015-05-26 2016-12-06 (주)펠리테크 Ceramic heating hybrid dryer using microwave

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CN203908258U (en) * 2014-06-13 2014-10-29 毛鹏飞 Agitated dryer
CN204678852U (en) * 2015-05-24 2015-09-30 陈斌 A kind of material drier
KR20160138877A (en) * 2015-05-26 2016-12-06 (주)펠리테크 Ceramic heating hybrid dryer using microwave
CN205119701U (en) * 2015-10-27 2016-03-30 平顶山金晶生物科技有限公司 Soluble soybean polysaccharide rake dryer for drying
CN105276939A (en) * 2015-11-11 2016-01-27 上海复洁环保科技股份有限公司 Stirring type low temperature vacuum dewatering desiccation equipment and process thereof

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