Polyacrylamide dryer

Abstract

The utility model relates to the field of drying devices, and discloses a polyacrylamide dryer which comprises a box body, a material guiding barrel is installed in the box body, a drying assembly is arranged on the outer side of the material guiding barrel, and a feeding assembly and a discharging hopper are arranged at the two ends of the material guiding barrel respectively. The drying assembly comprises a waveguide system and a microwave generator; the feeding assembly comprises a feeding cylinder, a feeding groove and an exhaust pipe are arranged on the two sides of the top of the feeding cylinder respectively, and an induced draft fan is installed in the exhaust pipe. A second motor used for driving the second rotating shaft to rotate is installed at the head of the box body, a second spiral blade and a plurality of stirring blades are installed on the outer side of the second rotating shaft, and an air inlet pipe is connected to the tail of the material guiding barrel. The frequency conversion fan conveys cold air to the tail of the feeding barrel, polyacrylamide dried by the cold air is cooled, hot air is formed, the polyacrylamide in the feeding barrel is preheated through the hot air, heat energy is recycled, the drying efficiency of the polyacrylamide is improved, and more energy is saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to drying device field, concretely is a kind of polyacrylamide dryer. BACKGROUND

[0002] Polyacrylamide production is with acrylamide aqueous solution as raw material, under the action of initiator, carries out polymerization, and the polyacrylamide rubber block generated after reaction is completed is cut, granulated, dried, pulverized, and finally polyacrylamide product is prepared. The polyacrylamide obtained by aqueous solution polymerization is usually more than 70% in water content, which is inconvenient for packaging, transportation and storage. Through drying treatment, the water content can be significantly reduced, so that it becomes dry powder or granular product which is easy to handle and store.

[0003] Traditional polyacrylamide drying adopts vibration type fluidized bed dryer, and the polyacrylamide is dried by drying medium. This drying method is low in efficiency, and the polyacrylamide still has high temperature when it is discharged. A cooling mechanism needs to be provided to cool the discharged polyacrylamide. More equipment is needed, and the heat energy is wasted, which is not conducive to energy saving and emission reduction. UTILITY MODEL CONTENT

[0004] The technical problem to be solved by the utility model is that the polyacrylamide discharged by the existing polyacrylamide dryer still has high temperature when it is discharged, the heat energy is wasted, and it is not conducive to energy saving and emission reduction.

[0005] In order to solve the above problems, the technical scheme of the utility model is as follows: a polyacrylamide dryer, comprising a horizontally arranged box body, a material guiding cylinder is installed inside the box body, a drying assembly is arranged outside the material guiding cylinder, a feeding assembly penetrating the top surface of the box body is arranged at the upper end of the head, and a discharge hopper penetrating the bottom surface of the box body is arranged at the lower end of the tail.

[0006] The drying assembly comprises a waveguide system arranged outside the material guiding cylinder and a microwave generator installed on the top of the box body.

[0007] The feeding assembly comprises a feeding cylinder, the feeding cylinder is perpendicular to the material guiding cylinder, and a feeding groove and an exhaust pipe are respectively arranged at the both sides of the top of the feeding cylinder, and an induced draft fan is installed inside the exhaust pipe away from the feeding cylinder.

[0008] A rotating shaft two is rotatably installed inside the material guiding cylinder, a motor two for driving the rotating shaft two to rotate is installed at the head of the box body, a spiral blade two is installed outside the rotating shaft two, and a plurality of stirring blades are installed in the gap between the spiral blade two and the outside of the rotating shaft two, and an air inlet pipe is connected to the tail of the material guiding cylinder.

[0009] Further, support legs are arranged at the bottom of the box body, and a PLC controller is installed outside the support legs.

[0010] Further, the waveguide system is located between the feeding assembly and the tail of the guide cylinder and is close to the feeding assembly.

[0011] Further, the diameter of the feeding cylinder is 2 / 3 of the diameter of the guide cylinder.

[0012] Further, a rotating shaft one is rotatably arranged inside the feeding cylinder, a motor one for driving the rotating shaft one to rotate is arranged on the top of the feeding cylinder, and helical blades one are arranged on the outer side of the rotating shaft one.

[0013] Further, a variable frequency fan is arranged above the tail of the box body, and an output end of the variable frequency fan is connected to the air inlet pipe through a communication pipe.

[0014] Further, a buffer box is connected to the bottom of the discharge hopper, a material taking opening is arranged at the front end of the buffer box, and a sealing cover is arranged at the material taking opening.

[0015] Compared with the prior art, the variable frequency fan of the utility model delivers cold air to the tail of the guide cylinder, the dried polyacrylamide is cooled, hot air is formed, the polyacrylamide in the feeding cylinder is preheated through the hot air, the reuse of heat energy is realized, the drying efficiency of the polyacrylamide is improved, and the utility model is more energy-saving. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is the perspective view of the utility model Figure 1 .

[0017] Figure 2 is the perspective view of the utility model Figure 2 .

[0018] Figure 3 is the sectional view of the utility model.

[0019] Figure 4 is the installation structure schematic view of the induced draft fan of the utility model.

[0020] As shown in the drawings: 1, box body; 2, guide cylinder; 3, discharge hopper; 4, microwave generator; 5, waveguide system; 6, feeding cylinder; 7, feeding groove; 8, exhaust pipe; 9, induced draft fan; 10, rotating shaft one; 11, motor one; 12, helical blades one; 13, rotating shaft two; 14, motor two; 15, helical blades two; 16, stirring blade; 17, air inlet pipe; 18, supporting leg; 19, PLC controller; 20, variable frequency fan; 21, buffer box; 22, sealing cover. DETAILED DESCRIPTION

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0022] like Figures 1 to 3 As shown, a polyacrylamide dryer includes a horizontally arranged box 1, a guide cylinder 2 installed inside the box 1, a drying component on the outside of the guide cylinder 2, a feeding component penetrating the top surface of the box 1 at the upper end of the head, a discharge hopper 3 penetrating the bottom surface of the box 1 at the lower end of the tail, a support leg 18 at the bottom of the box 1, and a PLC controller 19 installed on the outside.

[0023] The drying assembly includes a waveguide system 5 sleeved on the outside of the feed cylinder 2 and a microwave generator 4 installed on the top of the housing 1. The waveguide system 5 is located between the feeding assembly and the tail of the feed cylinder 2, and is close to the feeding assembly.

[0024] The microwave generator 4 is the component that generates microwaves, and the waveguide system 5 is used to transmit microwaves into the material guide cylinder 2 to dry the polyacrylamide inside the material guide cylinder 2.

[0025] like Figure 3 and Figure 4 As shown, the feeding assembly includes a feeding cylinder 6, the diameter of which is 2 / 3 of the diameter of the guide cylinder 2, and the feeding cylinder 6 is perpendicular to the guide cylinder 2. The top two sides of the feeding cylinder 6 are respectively provided with a feeding trough 7 and an exhaust pipe 8. An induced draft fan 9 is installed inside the end of the exhaust pipe 8 away from the feeding cylinder 6. A rotating shaft 10 is rotatably installed inside the feeding cylinder 6, and a motor 11 for driving the rotating shaft 10 to rotate is installed on the top. A spiral blade 12 is installed on the outside of the rotating shaft 10.

[0026] The polyacrylamide to be dried is fed into the feed cylinder 6 through the feed trough 7. The motor 11 drives the rotating shaft 10 and the spiral blade 12 to rotate, which can improve the uniformity of feeding. The setting of the blower 9 facilitates the discharge of hot air flowing in from the guide cylinder 2 and effectively reduces the situation of hot air flowing out from the feed trough 7.

[0027] like Figure 1 and Figure 3As shown, the inside of the guide cylinder 2 is rotatably provided with a rotating shaft 13, the head of the box 1 is provided with a motor 14 for driving the rotating shaft 13 to rotate, the outside of the rotating shaft 13 is provided with a spiral blade 15, and the outside of the rotating shaft 13 is provided with a plurality of stirring blades 16 in the gap of the spiral blade 15, the tail of the guide cylinder 2 is connected with an air inlet pipe 17, the tail of the box 1 is provided with a variable frequency fan 20, the output end of the variable frequency fan 20 is connected with the air inlet pipe 17 through a communication pipe, the bottom of the discharge hopper 3 is connected with a buffer tank 21, the front end of the buffer tank 21 is provided with a material taking opening, and the material taking opening is provided with a sealing cover 22.

[0028] The cold air output by the variable frequency fan 20 is input into the tail of the guide cylinder 2 through the air inlet pipe 17, is transported to the head of the guide cylinder 2, then is input into the feeding cylinder 6, and finally is discharged through the exhaust pipe 8. After the cold air is input into the tail of the guide cylinder 2, the dried polyacrylamide can be cooled, then the cold air gradually becomes hot air, and the hot air input into the feeding cylinder 6 can preheat the polyacrylamide in the feeding cylinder 6.

[0029] The motor 14 drives the rotating shaft 13, the spiral blade 15 and the stirring blade 16 to rotate, so that the polyacrylamide can be transported to the tail of the guide cylinder 2 and stirred at the same time, the heating is more uniform, the evaporated moisture can be discharged in time, and the dried polyacrylamide is stored in the buffer tank 21 through the discharge hopper 3.

[0030] In specific use, the polyacrylamide to be dried is put into the inside of the feeding cylinder 6 through the feeding groove 7, the motor 11 drives the rotating shaft 10 and the spiral blade 12 to rotate, so that the polyacrylamide can be uniformly transported into the guide cylinder 2, the wave generator 4 and the waveguide system 5 cooperate to dry the polyacrylamide, the motor 14 drives the rotating shaft 13, the spiral blade 15 and the stirring blade 16 to rotate, so that the polyacrylamide can be transported to the tail of the guide cylinder 2 and stirred at the same time, the heating is more uniform, and the evaporated moisture can be discharged in time; the variable frequency fan 20 transports cold air to the tail of the guide cylinder 2, the cold air input into the tail of the guide cylinder 2 can cool the dried polyacrylamide, then the cold air gradually becomes hot air, the hot air input into the feeding cylinder 6 can preheat the polyacrylamide in the feeding cylinder 6, and finally is discharged through the exhaust pipe 8 under the action of the induced draft fan 9. While the polyacrylamide is cooled, the heat can be used for preheating the polyacrylamide in the feeding cylinder 6, the drying efficiency of the polyacrylamide can be improved by drying the preheated polyacrylamide, and the energy consumption is further reduced.

[0031] The parts not disclosed in the utility model are prior art, and the specific structure and working principle are not described again.

[0032] It is to be noted that, in the present document, relational terms such as first and second and the like can be 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 can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0033] While the embodiments of the present application have been illustrated 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 spirit and scope of the application, which is defined by the following claims and their equivalents.

[0034] The above description of the present application and its embodiments has been described, which is not restrictive, and the embodiments shown in the drawings are only one of the embodiments of the present application, and the actual structure is not limited thereto. In general, if a person skilled in the art is inspired by it, without departing from the creative purpose of the present application, without creative design, similar structure and embodiments of the technical scheme should belong to the protection scope of the present application.

Claims

1. A polyacrylamide dryer, comprising a horizontally arranged box (1), a guide cylinder (2) installed inside the box (1), a drying component provided on the outside of the guide cylinder (2), a feeding component penetrating the top surface of the box (1) at the upper end of the head, and a discharge hopper (3) penetrating the bottom surface of the box (1) at the lower end of the tail, characterized in that: The drying assembly includes a waveguide system (5) sleeved on the outside of the feed cylinder (2) and a microwave generator (4) installed on the top of the housing (1); The feeding assembly includes a feeding cylinder (6), which is perpendicular to the guide cylinder (2). The top two sides of the feeding cylinder (6) are respectively provided with a feeding groove (7) and an exhaust pipe (8). An induced draft fan (9) is installed inside the exhaust pipe (8) at the end away from the feeding cylinder (6). The guide cylinder (2) is rotatably mounted with a rotating shaft (13). The head of the housing (1) is equipped with a motor (14) for driving the rotating shaft (13) to rotate. A spiral blade (15) is mounted on the outside of the rotating shaft (13), and several stirring blades (16) are mounted on the outside of the rotating shaft (13) within the gap of the spiral blade (15). An air inlet pipe (17) is connected to the tail of the guide cylinder (2).

2. The polyacrylamide dryer according to claim 1, characterized in that: The bottom of the housing (1) is provided with support legs (18), and a PLC controller (19) is installed on the outside.

3. The polyacrylamide dryer according to claim 1, characterized in that: The waveguide system (5) is located between the feeding assembly and the tail of the guide cylinder (2), and is close to the feeding assembly.

4. A polyacrylamide dryer according to claim 1, characterized in that: The diameter of the feed cylinder (6) is 2 / 3 of the diameter of the guide cylinder (2).

5. A polyacrylamide dryer according to claim 1, characterized in that: The feed cylinder (6) has a rotating shaft (10) rotatably mounted inside, and a motor (11) for driving the rotating shaft (10) to rotate is mounted on the top. A spiral blade (12) is mounted on the outside of the rotating shaft (10).

6. A polyacrylamide dryer according to claim 1, characterized in that: A variable frequency fan (20) is installed above the rear of the housing (1), and the output end of the variable frequency fan (20) is connected to the air inlet pipe (17) through a connecting pipe.

7. A polyacrylamide dryer according to claim 1, characterized in that: The bottom of the discharge hopper (3) is connected to a buffer box (21), the front end of the buffer box (21) is provided with a material outlet, and the material outlet is provided with a sealing cover (22).

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