A uniform drying type spray granulation dryer

Abstract

The invention belongs to the technical field of spray granulation drying, and specifically relates to a uniform drying type spray granulation dryer, which includes spray granulation drying equipment, the spray granulation drying equipment includes two support frames, a chamber, a material pipe, a hot air pipe and a uniform drying mechanism; the two support frames are fixedly installed on the left and right sides of the bottom of the chamber respectively, the material pipe is connected to the top of the chamber, the hot air pipe is connected to the left side of the chamber, the material pipe is connected to an external hydraulic pump pipeline, and the external hydraulic pump is connected to an external liquid material pipeline, the hot air pipe is connected to an external hot air pipeline, the left and right sides of the bottom of the material pipe are connected to a plurality of nozzles, and the plurality of nozzles are located inside the chamber, the uniform drying mechanism includes a cylinder, an output rod, a motor, a fan blade, a connecting shaft and a plug, and the device solves the problem that the material cannot be fully dried or the drying effect is poor during the current spray granulation, resulting in reduced material production quality.

Description

Technical Field

[0001] The invention belongs to the technical field of spray granulation drying, and in particular relates to a uniform drying type spray granulation dryer. Background Art

[0002] The working principle of the spray granulation dryer is to spray the material in liquid form into a high-temperature hot air flow, so that the material evaporates into gas instantly. The liquid material is dispersed into tiny droplets through the nozzle or the centrifugal turntable. These droplets have a large surface area and surface free energy, so the water evaporates very quickly. These droplets come into contact with the hot air and most of the water is removed instantly, so that the solid matter in the material is dried into powder. With the further evaporation of the water, the material gradually gathers into granules.

[0003] When liquid materials quickly enter the dryer, some materials cannot be completely dried due to the high speed of the nozzle spraying materials. In addition, there is still some moisture inside the formed granular materials. The existing technology cannot fully dry the granular materials, resulting in poor drying quality and low drying efficiency. This phenomenon has become a problem that needs to be solved urgently by people in this field. Summary of the invention

[0004] The object of the present invention is to provide a uniform drying type spray granulation dryer to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a uniform drying type spray granulation dryer, comprising a spray granulation drying device, the spray granulation drying device comprising two support frames, a chamber, a material pipe, a hot air pipe and a uniform drying mechanism; the two support frames are fixedly installed on the left and right sides of the bottom of the chamber respectively, the material pipe is connected to the top of the chamber, the hot air pipe is connected to the left side of the chamber, the material pipe is connected to the external hydraulic pump pipeline, and the external hydraulic pump is connected to the external liquid material pipeline, the hot air pipe is connected to the external hot air pipeline, the left and right sides of the bottom of the material pipe are connected with a plurality of nozzles, and the plurality of nozzles are located inside the chamber, the uniform drying mechanism comprises a cylinder, an output rod, a motor, a fan blade, a connecting shaft and a plug, and the bottom of the chamber is connected with a discharge pipe; the cylinder is fixedly installed at the bottom of the material pipe, the motor is fixedly connected to the output end of the cylinder through the output rod, the fan blade is fixedly connected to the output end of the motor, the plug is fixedly installed below the fan blade through the connecting shaft, and is slidably connected in the discharge pipe.

[0006] The present invention further illustrates that slide rails are fixed on both sides of the left and right sides of the connecting shaft, sliders are slidably connected to the inner walls of the slide rails, stirring blades are fixed to the outer sides of the sliders, and the sliders are spring-connected to the bottom of the inner wall of the slide rails; extrusion rods are bearing-connected to the left and right sides of the inner wall of the chamber, and a vortex spring is arranged in the bearing, a pressing rod is fixed above the stirring blade, the two pressing rods are arc-shaped, and the arc angle is 60 degrees, the inner end of the extrusion rod is spherical, and the pressing rod contacts the extrusion rod after rotation.

[0007] The present invention further describes that guide rails are fixed on both sides of the bottom of the fan blades, the inner wall of the guide rails is slidably connected with a guide block, the guide block is spring-connected to the outer side of the inner wall of the guide rail, a push block is fixed at the bottom of the guide block, and after moving, it contacts with the extrusion rod; the two push blocks are both arc-shaped, and the arc angle is 180 degrees.

[0008] The present invention further describes that impact rods are fixedly installed on both sides of the inner wall of the chamber, the upper end of the impact rod is spherical and located below the extrusion rod, and the extrusion rod contacts the impact rod after rotating through the bearing.

[0009] The present invention further illustrates that the spray granulation drying equipment includes an intelligent control system, which includes a hydraulic identification module and a power control module. The hydraulic identification module is arranged in an external hydraulic pump and is electrically connected to the power control module. The power control module is electrically connected to the motor. The hydraulic identification module is used to identify the pressure of the external hydraulic pump, thereby determining the speed at which the nozzle sprays the liquid material. The power control module is used to control the speed of the motor according to the spraying speed of the liquid material.

[0010] The present invention further illustrates that the operation method of the spray granulation drying equipment includes the following steps: step S1, the cylinder is operated, and the discharge pipe is blocked by a plug, and then the external hydraulic pump is operated to spray the liquid material into the chamber through the nozzle, and at the same time, the external hot air enters the chamber through the hot air pipe; step S2, the liquid material sprayed from the nozzle becomes tiny droplets, the motor is operated, and the liquid is blown upward, and at the same time, the particles formed by the stirring blade are further dried, and the speed of the motor is controlled according to the spraying speed of the liquid material, so as to control the blowing intensity, stirring intensity and the up and down shaking frequency and shaking amplitude of the stirring blade; step S3, after drying is completed, the cylinder is reset, the plug is opened, and the material is discharged from the chamber through the discharge pipe.

[0011] The present invention further illustrates that in step S2, , is the real-time speed of the motor, Real-time hydraulic pressure size for external hydraulic pumps, is the maximum hydraulic pressure of the external hydraulic pump, It is the maximum speed of the motor. The greater the hydraulic pressure of the external hydraulic pump, the faster the motor speed.

[0012] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: the present invention disperses the liquid material into tiny droplets by spraying it from the nozzle, and these droplets contact with the hot air, and most of the water is removed instantly, so that the solid matter in the material is dried into powder. With the further evaporation of the water, the material gradually gathers into granules, and then falls to the bottom of the chamber. During the drying process, the motor runs, driving the fan blades to rotate, blowing the hot air upward, so that the hot air and the droplets are fully in contact, the drying is more uniform, the drying efficiency is greatly improved, and the granular material falling to the bottom of the chamber is stirred, so as to further accelerate the evaporation of water, the drying effect is better, and the efficiency is higher. At the same time, the granular material is shaken up and down when stirring, so as to turn the granular material upward, the drying intensity is further increased, and the internal water can be fully evaporated;

[0013] When the fan blades rotate, they are affected by centrifugal force, and the guide block slides outward through the guide rail. The spring is deformed under the force, driving the push block to move outward and contact the extrusion rod, squeezing the extrusion rod downward, thereby increasing the force of the extrusion rod squeezing the pressing rod, increasing the amplitude of the up and down shaking of the fan blades, and enhancing the drying intensity. The particles attached to the inner wall of the chamber are shaken off by the impact, so that the particles are fully stirred by the stirring blades, making the drying more uniform and the drying effect stronger. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0016] Figure 2 is a plan view of the present invention;

[0017] Figure 3 It is a schematic diagram of the internal structure of the chamber of the present invention;

[0018] Figure 4 is a schematic diagram of a uniform drying mechanism of the present invention;

[0019] Figure 5 is a cross-sectional view of the uniform drying mechanism of the present invention;

[0020] Figure 6 is a plan view of the uniform drying mechanism of the present invention;

[0021] In the figure: 1. support frame; 2. chamber; 21. cylinder; 22. output rod; 23. motor; 24. fan blade; 241. guide rail; 242. guide block; 243. push block; 25. connecting shaft; 251. slide rail; 252. slider; 253. stirring blade; 254. pressing rod; 26. plug; 27. extrusion rod; 28. impact rod; 3. material pipe; 31. nozzle; 4. hot air pipe; 5. discharge pipe. DETAILED DESCRIPTION

[0022] The following is a further non-limiting detailed description of the technical solution of the present invention in conjunction with the preferred embodiments and the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] See also Figure 1-6 , the present invention provides a technical solution: a uniform drying type spray granulation dryer, including a spray granulation drying device, the spray granulation drying device includes two support frames 1, a chamber 2, a material pipe 3, a hot air pipe 4 and a uniform drying mechanism;

[0024] Two support frames 1 are fixedly installed on the left and right sides of the bottom of the chamber 2, respectively. The material pipe 3 is connected to the top of the chamber 2, and the hot air pipe 4 is connected to the left side of the chamber 2. The material pipe 3 is connected to the external hydraulic pump pipeline, and the external hydraulic pump is connected to the external liquid material pipeline. The hot air pipe 4 is connected to the external hot air pipeline. The left and right sides of the bottom of the material pipe 3 are connected to a plurality of nozzles 31, and the plurality of nozzles 31 are located inside the chamber 2. The uniform drying mechanism includes a cylinder 21, an output rod 22, a motor 23, a fan blade 24, a connecting shaft 25 and a plug 26. The bottom of the chamber 2 is connected to a discharge pipe 5;

[0025] The cylinder 21 is fixedly installed at the bottom of the material pipe 3, the motor 23 is fixedly connected to the output end of the cylinder 21 through the output rod 22, the fan blade 24 is fixedly connected to the output end of the motor 23, and the plug 26 is fixedly installed below the fan blade 24 through the connecting shaft 25, and is slidably connected in the discharge pipe 5;

[0026] The cylinder 21 runs, driving the motor 23 to descend through the output rod 22, and the motor 23 drives the connecting shaft 25 to descend through the fan blades 24. The connecting shaft 25 drives the plug 26 to insert into the discharge pipe 5, thereby blocking the discharge pipe 5. Then the external hydraulic pump runs, extracts the liquid material and injects it into the material pipe 3 through the pipeline, and then sprays it into the chamber 2 through the nozzle 31. At the same time, the external hot air enters the chamber 2 through the hot air pipe 4. The liquid material is dispersed into tiny droplets through the nozzle 31. These droplets come into contact with the hot air, and most of the moisture is removed in an instant, so that the solid matter in the material is dried into powder. With the further evaporation of moisture, the material gradually gathers into particles and falls to the bottom of the chamber 2. During the drying process, the motor 23 runs, driving the fan blades 24 to rotate, blowing the hot air upward, so that the hot air is fully in contact with the droplets, the drying is more uniform, and the drying efficiency is greatly improved.

[0027] Slide rails 251 are fixed on both sides of the connecting shaft 25, and sliders 252 are slidably connected to the inner walls of the slide rails 251. Stirring blades 253 are fixed to the outer sides of the sliders 252. The sliders 252 are connected to the inner wall bottom of the slide rails 251 by springs;

[0028] The inner wall of the chamber 2 is connected to the squeezing rod 27 by bearings on both sides, and a volute spring is arranged in the bearing. A pressing rod 254 is fixed above the stirring blade 253. The two pressing rods 254 are both arc-shaped, and the arc angle is 60 degrees. The inner end of the squeezing rod 27 is spherical, and the pressing rod 254 contacts the squeezing rod 27 after rotating.

[0029] When the fan blade 24 rotates, the slide rail 251 is driven to rotate around its center through the connecting shaft 25, and the slide rail 251 drives the stirring blade 253 to rotate through the slider 252, so as to stir the granular material that falls to the bottom of the chamber 2, further accelerate the evaporation of water, and achieve better drying effect and higher efficiency. At the same time, when the stirring blade 253 rotates, the pressing rod 254 is driven to rotate, and the upper end of the pressing rod 254 is rotated to contact and squeeze the extrusion rod 27. The pressing rod 254 is forced to push the stirring blade 253 downward, so that the slider 252 slides downward along the inner wall of the slide rail 251, and the spring is deformed by the force. Then the pressing rod 254 is rotated to disengage from the extrusion rod 27, and the spring generates a reaction force to reset the stirring blade 253, so that the stirring blade 253 shakes up and down when stirring the granular material, thereby turning the granular material upward, further increasing the drying intensity, and being able to fully evaporate the internal water.

[0030] Guide rails 241 are fixed on both sides of the bottom of the fan blade 24. The inner wall of the guide rail 241 is slidably connected with a guide block 242. The guide block 242 is connected to the outer spring of the inner wall of the guide rail 241. A push block 243 is fixed at the bottom of the guide block 242, and after moving, it contacts with the extrusion rod 27.

[0031] The two push blocks 243 are both arc-shaped, and the arc angle is 180 degrees;

[0032] When the fan blades 24 rotate, they are acted upon by centrifugal force, and the guide block 242 slides outward through the guide rail 241. The spring is deformed by the force, driving the push block 243 to move outward and contact the extrusion rod 27, squeezing the extrusion rod 27 downward, thereby increasing the force of the extrusion rod 27 squeezing the pressing rod 254, increasing the amplitude of the up and down shaking of the fan blades 24, and enhancing the drying intensity. The faster the speed of the motor 23, the greater the centrifugal force applied to the guide block 242, thereby increasing the amplitude of the squeezing rod 27 downward squeezing, and increasing the amplitude of the up and down shaking of the fan blades 24.

[0033] The inner wall of the chamber 2 is fixedly mounted with a striking rod 28 on both sides. The upper end of the striking rod 28 is spherical and is located below the extrusion rod 27. The extrusion rod 27 rotates through the bearing and contacts the striking rod 28.

[0034] After the extrusion rod 27 is separated from the pressing rod 254, the scroll spring at the connection between the chamber and the extrusion rod 27 bearing is affected. The scroll spring is first deformed by the force of the pressing rod 254, and then resets to generate a reaction force, so that the extrusion rod 27 quickly rotates through the bearing and collides with the impact rod 28. The vibration generated by the impact can shake off the particles attached to the inner wall of the chamber 2, so that the particles are fully stirred by the stirring blade 253, and the drying is more uniform and the drying effect is stronger.

[0035] After the drying work is completed, the cylinder 21 is reset to open the plug 26. At the same time, the pressing rod 254 pushes the extrusion rod 27 upward to rotate greatly through the bearing. The deformation of the volute spring increases and the reaction force is enhanced, so that the impact rod 28 collides with each other with great force, which can fully shake the material in the chamber 2 and discharge it through the discharge pipe 5, so as to fully collect the dried material.

[0036] The spray granulation drying equipment includes an intelligent control system, which includes a hydraulic identification module and a power control module. The hydraulic identification module is arranged in an external hydraulic pump and is electrically connected to the power control module. The power control module is electrically connected to the motor 23. The hydraulic identification module is used to identify the pressure of the external hydraulic pump, thereby determining the speed at which the nozzle 31 sprays the liquid material. The power control module is used to control the rotation speed of the motor 23 according to the spraying speed of the liquid material.

[0037] The operation method of the spray granulation drying equipment includes the following steps:

[0038] Step S1, the cylinder 21 is operated to block the discharge pipe 5 through the plug 26, and then the external hydraulic pump is operated to spray the liquid material into the chamber 2 through the nozzle 31, and at the same time, the external hot air enters the chamber 2 through the hot air pipe 4;

[0039] Step S2, the liquid material sprayed out from the nozzle 31 becomes tiny droplets, the motor 23 is running, blowing the liquid upward, and at the same time, the particles formed by stirring by the stirring blade 253 are further dried, and the speed of the motor 23 is controlled according to the spraying speed of the liquid material, thereby controlling the blowing intensity, stirring intensity, and the up and down shaking frequency and shaking amplitude of the stirring blade 253;

[0040] Step S3: After drying is completed, the cylinder 21 is reset, the plug 26 is opened, and the material is discharged from the chamber 2 through the discharge pipe 5.

[0041] In step S2, , is the real-time speed of the motor 23, Real-time hydraulic pressure size for external hydraulic pumps, is the maximum hydraulic pressure of the external hydraulic pump, is the maximum speed of the motor 23. The greater the hydraulic pressure of the external hydraulic pump, the faster the speed of the motor 23.

[0042] In view of the low pressure of the external hydraulic pump, the slow liquid material spraying speed, the low rotation speed of the motor 23, the low blowing intensity of the fan blade 24, the low stirring intensity of the stirring blade 253, and the low up and down shaking frequency and small shaking amplitude of the stirring blade 253, it can not only carry out efficient drying work, but also save energy consumption and reduce costs. On the contrary, the blowing intensity of the fan blade 24 is high, the stirring intensity of the stirring blade 253 is high, and the up and down shaking frequency and large shaking amplitude of the stirring blade 253 are high, which greatly enhances the drying intensity of the material, plays a role in full drying, fully evaporates the moisture in the material, and improves the drying quality.

[0043] In the description of the present invention, it is necessary to understand that the terms "up", "down", "front", "back", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0044] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them. Although the present invention has been described in detail with reference to the above embodiments, a person skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some of the technical features can be replaced by equivalents, and these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A uniform drying type spray granulation dryer, comprising a spray granulation drying device, characterized in that: The spray granulation drying equipment comprises two support frames (1), a chamber (2), a material pipe (3), a hot air pipe (4) and a uniform drying mechanism; The two support frames (1) are respectively fixedly mounted on the left and right sides of the bottom of the chamber (2); the material pipe (3) is connected to the top of the chamber (2); the hot air pipe (4) is connected to the left side of the chamber (2); the material pipe (3) is connected to an external hydraulic pump pipeline, and the external hydraulic pump is connected to an external liquid material pipeline; the hot air pipe (4) is connected to an external hot air pipeline; the left and right sides of the bottom of the material pipe (3) are connected to a plurality of nozzles (31), and the plurality of nozzles (31) are located inside the chamber (2); the uniform drying mechanism comprises a cylinder (21), an output rod (22), a motor (23), a fan blade (24), a connecting shaft (25) and a plug (26); and the bottom of the chamber (2) is connected to a discharge pipe (5); The cylinder (21) is fixedly mounted on the bottom of the material pipe (3); the motor (23) is fixedly connected to the output end of the cylinder (21) via an output rod (22); the fan blade (24) is fixedly connected to the output end of the motor (23); the plug (26) is fixedly mounted below the fan blade (24) via a connecting shaft (25) and is slidably connected to the inside of the discharge pipe (5); slide rails (251) are fixedly mounted on both left and right sides of the connecting shaft (25); sliders (252) are slidably connected to the inner walls of the slide rails (251); stirring blades (253) are fixedly mounted on the outer sides of the sliders (252); and the sliders (252) are spring-connected to the bottom of the inner wall of the slide rail (251); The inner wall of the chamber (2) is connected to an extrusion rod (27) by bearings on both sides, and a volute spring is arranged in the bearing. A pressing rod (254) is fixed above the stirring blade (253). The two pressing rods (254) are both arc-shaped, and the arc angle is 60 degrees. The inner end of the extrusion rod (27) is spherical, and the pressing rod (254) contacts the extrusion rod (27) after rotation. Guide rails (241) are fixed to the left and right sides of the bottom of the fan blade (24). The inner wall of the guide rail (241) is slidably connected to a guide block (242). The guide block (242) is connected to the outer spring of the inner wall of the guide rail (241). A push block (243) is fixed to the bottom of the guide block (242), and contacts the extrusion rod (27) after movement. The two push blocks (243) are both arc-shaped, and the arc angle is 180 degrees. Impact rods (28) are fixedly installed on the left and right sides of the inner wall of the chamber (2). The upper end of the impact rod (28) is spherical and located below the extrusion rod (27). The extrusion rod (27) contacts the impact rod (28) after rotating through the bearing.

2. A uniform drying type spray granulation dryer according to claim 1, characterized in that: The spray granulation drying equipment comprises an intelligent control system, which comprises a hydraulic identification module and a power control module. The hydraulic identification module is arranged in an external hydraulic pump and is electrically connected to the power control module. The power control module is electrically connected to a motor (23). The hydraulic identification module is used to identify the pressure of the external hydraulic pump, thereby determining the speed at which the nozzle (31) sprays liquid material. The power control module is used to control the rotation speed of the motor (23) according to the spraying speed of the liquid material.

3. A uniform drying type spray granulation dryer according to claim 2, characterized in that: The operation method of the spray granulation drying equipment comprises the following steps: Step S1, the cylinder (21) operates to block the discharge pipe (5) through the plug (26), and then the external hydraulic pump operates to spray the liquid material into the chamber (2) through the nozzle (31), and at the same time, the external hot air enters the chamber (2) through the hot air pipe (4); Step S2, the liquid material sprayed out by the nozzle (31) becomes tiny droplets, the motor (23) is operated to blow the liquid upward, and at the same time, the stirring blade (253) stirs the formed particles to further dry them, and the rotation speed of the motor (23) is controlled according to the spraying speed of the liquid material, thereby controlling the blowing intensity, the stirring intensity, and the up and down shaking frequency and shaking amplitude of the stirring blade (253); Step S3: After drying is completed, the cylinder (21) is reset, the plug (26) is opened, and the material is discharged from the chamber (2) through the discharge pipe (5).

4. A uniform drying type spray granulation dryer according to claim 3, characterized in that: In the step S2, , is the real-time speed of the motor (23), Real-time hydraulic pressure size for external hydraulic pumps, is the maximum hydraulic pressure of the external hydraulic pump, is the maximum speed of the motor (23). The greater the hydraulic pressure of the external hydraulic pump, the faster the speed of the motor (23).

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