A spray granulation device and method for ceramic production process

Abstract

The present invention discloses a spray granulation device for a ceramic production process, comprising a tank body (10), a spray device (20), a first collection box (30), a separator (40), a second collection box (50), and a nozzle (N). The nozzle is characterized in that the nozzle comprises a nozzle body (1), a diffuser (2), an adjustment part (3), and a rotating part (4). The diffuser and the adjustment part are provided in the nozzle body, a portion of the adjustment part is provided in the diffuser, and the rotating part rotates under the drive of an airflow. The present invention can make the distribution of atomized particles of the sprayed atomized slurry more uniform and the particle size more uniform / equal, thereby improving the uniformity of the granulated particle size of the spray granulation device and improving the quality of the spray granulation.

Description

Technical Field

[0001] The present invention relates to the technical field of ceramic production and manufacturing, and in particular to a spray granulation device and method for ceramic production technology. Background Art

[0002] like Figure 1 As shown, a conventional spray granulation device for ceramic production processes includes a tank body 10, a spray device 20, a first collection box 30, a separator 40, a second collection box 50, and a nozzle N. The spray device 20 is provided on the top of the tank body 10, the lower end of the tank body 10 is connected to the first collection box 30, the lower conical portion of the tank body 10 is connected to the separator 40 via a pipe, the lower end of the separator 40 is connected to the second collection box 50, and the lower end of the spray device 20 is provided with a nozzle N. However, conventional spray devices have problems such as poor uniformity in the distribution of atomized particles and uneven / unequal particle sizes. Summary of the Invention

[0003] The object of the present invention is to overcome the deficiencies in the prior art and provide a spray granulation device and method for a ceramic production process. The nozzle of the spray device is improved / optimized in design. Under the mixing action of the first liquid and the second liquid in a rotating airflow, the atomized particles of the sprayed atomized slurry of the nozzle can be more evenly distributed and the particle size can be more uniform / equal, thereby improving the uniformity of the granulation particle size of the spray granulation device and improving the quality of the spray granulation.

[0004] In order to achieve the above object, the technical solution adopted by the present invention is:

[0005] A spray granulation device for a ceramic production process, comprising a tank body (10), a spray device (20), a first collecting box (30), a separator (40), a second collecting box (50), and a nozzle (N). The top of the tank body is provided with the spray device, the lower end of the tank body is connected to the first collecting box, the lower conical portion of the tank body is connected to the separator through a pipe, the lower end of the separator is connected to the second collecting box, and the lower end of the spray device is provided with a nozzle. The nozzle (N) is characterized in that: the nozzle (N) comprises a nozzle body (1), a diffuser (2), an adjustment part (3), and a rotating part (4), and the nozzle body is provided with a diffuser. The nozzle body includes a cylinder (11), a first connecting sleeve (12), an air guide hole (13), and a positioning portion (14). The first connecting sleeve is provided at the center of the upper end of the cylinder. The first connecting sleeve is used to connect with the corresponding structure at the lower end of the injection device. The lower end of the first connecting sleeve is threadedly connected to the upper end of the diffuser. A plurality of air guide holes are provided on the upper end wall plate of the cylinder. The air guide holes are connected to the compressed air source through a second joint (6) provided on the outer end surface of the upper end wall plate. The positioning portion is used to realize the axial positioning of the rotating portion.

[0006] Furthermore, the diffusion portion (2) comprises a second connecting sleeve (21), a first diffusion cone (22), and a notch (23); the second connecting sleeve is connected to the internal thread of the first connecting sleeve via an external thread; the rotating portion is arranged on the outer periphery of the first diffusion cone; and the notch is arranged at the lower end of the first diffusion cone 22.

[0007] Furthermore, the regulating portion (3) includes a feed pipe (31), a second diffusion cone (32), an arc-shaped diverter cover (33), and a nozzle (34). The feed pipe is arranged perpendicular to the axis of the cylinder (11). The left end of the feed pipe is provided with a second diffusion cone and an arc-shaped diverter cover. The second diffusion cone is arranged on the inner peripheral side of the first diffusion cone and is coaxially arranged with substantially equal tapers. The upper end of the second diffusion cone has a feed port, which is axially aligned with the feed hole of the second connecting sleeve. The left end of the feed pipe (31) is arranged in the arc-shaped diverter cover. The lower end of the left end of the feed pipe is provided with a nozzle. The arc-shaped diverter cover has a circumferential range of 1 / 3-3 / 4 of the circumference. The center of the arc-shaped diverter cover is located on the axis of the second diffusion cone. The right end of the feed pipe passes through the connecting hole of the cylinder and is connected to the first joint (5) on the outer peripheral surface of the cylinder. The middle part of the feed pipe is located in the notch when installed. The notch (23) is used for avoidance when the feed pipe is installed.

[0008] Furthermore, the right end of the feed pipe (31) has an external thread connected to the internal thread section (51) of the first connector (5), and the first connector also has an external thread section, which is used to connect to an external material source.

[0009] Furthermore, a first channel is formed between the first diffusion cone (22) and the second diffusion cone (32), and a second channel is formed between the second diffusion cone and the arc-shaped diverter cover (33); the first slurry passes through the first connecting sleeve (12) and the second connecting sleeve (21) in sequence, and is then sprayed through the first channel and the second channel after being diverted; the second slurry is sprayed through the feed pipe and the nozzle in sequence.

[0010] Furthermore, the first slurry and the second slurry are the same liquid or different liquids, and the feed pipe (31), the second diffusion cone (32), and the arc-shaped diverter cover (33) are integrally formed.

[0011] Furthermore, the rotating portion (4) includes an inner ring (41), an outer ring (42), blades (43), a fixed ring (44), and a limiting ring (45). The two ends of a plurality of blades distributed along the circumferential direction are respectively connected to the inner ring and the outer ring. The inner ring, the blades, and the outer ring constitute a rotating body. The rotating body rotates under the impact of the airflow. The outer peripheral surface of the outer ring is connected to the inner peripheral surface of the fixed ring through a rolling body. The fixed ring is connected to the end face of the positioning portion. The lower end face of the fixed ring is fixed by a limiting ring. The position of the blade (43) is set corresponding to the position of the air guide hole (13).

[0012] Furthermore, the lower end of the first diffusion cone (22) has a first endpoint, the lower end of the second diffusion cone (32) has a second endpoint, and the lower end of the arc-shaped diverter cover (33) has a third endpoint. The first endpoint, the second endpoint, and the third endpoint are approximately located on the same straight line, and there is a first intersection between the straight line and the central axis of the cylinder (11), and the first intersection is located inside the cylinder; the axis of the nozzle (34) approximately overlaps with the axis of the cylinder.

[0013] A method for using a spray granulation device for a ceramic production process, wherein the nozzle (N) of the spray device (20) comprises the following installation steps:

[0014] Step S1: first, the rotating portion (4) is mounted on the positioning portion (14) of the nozzle body (1);

[0015] Step S2: Secondly, the diffuser (2) is threadedly connected to the second connecting sleeve (21) through the first connecting sleeve (12) at the upper end thereof;

[0016] Step S3: Then, the adjusting portion (3) is threadedly connected to the first joint (5) on the outer periphery of the cylinder (11) through the threaded portion at the right end of the feed pipe (31). The notch (23) is used for avoiding the feed pipe during installation.

[0017] The present invention provides a spray granulation device and method for a ceramic production process. The nozzle of the spray device is improved / optimized in design (specifically, the design of the diffuser, the regulating portion, and the rotating portion). Under the mixing action of the first liquid and the second liquid in a rotating airflow, the atomized particles of the sprayed atomized slurry of the nozzle can be more evenly distributed and the particle size can be more uniform / equal / similar, thereby improving the uniformity of the granulated particle size of the spray granulation device and the quality of the spray granulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic structural diagram of a spray granulation device in the prior art;

[0019] Figure 2 A schematic diagram of the nozzle structure of a spray granulation device for the ceramic production process of the present invention;

[0020] Figure 3 This is a schematic diagram of the nozzle structure of the spray granulation device used in the ceramic production process of the present invention.

[0021] In the figure: tank body 10, injection device 20, first collecting box 30, separator 40, second collecting box 50, nozzle N; nozzle body 1, diffuser 2, adjustment part 3, rotating part 4, first joint 5, second joint 6, cylinder 11, first connecting sleeve 12, air guide hole 13, positioning part 14, second connecting sleeve 21, first diffusion cone 22, notch 23, feed pipe 31, second diffusion cone 32, arc-shaped diverter cover 33, nozzle 34, inner ring 41, outer ring 42, blades 43, fixing ring 44, limit ring 45, internal thread section 51, liquid flow / air flow "→". DETAILED DESCRIPTION

[0022] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0023] The present invention will be further described in detail below with reference to the accompanying drawings.

[0024] like Figure 1-3 As shown, a spray granulation device for ceramic production process includes a tank body 10, an injection device 20, a first collection box 30, a separator 40, a second collection box 50, and a nozzle N. The top of the tank body 10 is provided with the injection device 20, the lower end of the tank body 10 is connected to the first collection box 30, the lower conical part of the tank body 10 is connected to the separator 40 through a pipeline, the lower end of the separator 40 is connected to the second collection box 50, and the lower end of the injection device 20 is provided with a nozzle N, which is characterized in that: the nozzle N includes a nozzle body 1, a diffuser 2, an adjustment part 3, and a rotating part 4, and the diffuser 2, the adjustment part 3 are provided in the nozzle body 1. Part of the regulating part 3 is arranged in the diffuser 2, and the rotating part 4 rotates under the drive of the airflow. The nozzle body 1 includes a cylinder 11, a first connecting sleeve 12, an air guide hole 13, and a positioning part 14. The first connecting sleeve 12 is provided at the center position of the upper end of the cylinder 11. The first connecting sleeve 12 is used to connect with the corresponding structure of the lower end of the injection device 20. The lower end of the first connecting sleeve 12 is threadedly connected to the upper end of the diffuser 2. A plurality of air guide holes 13 are provided on the upper end wall plate of the cylinder 11. The air guide holes 13 are connected to the compressed air source through the second joint 6 provided on the outer end surface of the upper end wall plate. The positioning part 14 is used to realize the axial positioning of the rotating part 4.

[0025] The diffuser 2 includes a second connecting sleeve 21, a first diffuser cone 22, and a notch 23. The second connecting sleeve 21 is connected to the internal thread of the first connecting sleeve 12 through an external thread. The rotating part 4 is arranged on the outer periphery of the first diffuser cone 22, and the notch 23 is arranged at the lower end of the first diffuser cone 22.

[0026] The regulating part 3 includes a feed pipe 31, a second diffusion cone 32, an arc-shaped flow divider 33, and a nozzle 34. The feed pipe 31 is arranged perpendicular to the axis of the cylinder 11. The left end of the feed pipe 31 is provided with a second diffusion cone 32 and an arc-shaped flow divider 33. The second diffusion cone 32 is arranged on the inner circumference side of the first diffusion cone 22 and is coaxially arranged with substantially equal tapers. The upper end of the second diffusion cone 32 has a feed port, which is axially aligned with the feed hole of the second connecting sleeve 21. The left end of the feed pipe 31 is provided with a second diffusion cone 32 and an arc-shaped flow divider 33. The end is arranged in the arc-shaped diverter cover 33, and a nozzle 34 is provided at the lower end of the left end of the feed pipe 31. The arc-shaped diverter cover 33 has a circumferential range of 1 / 3-3 / 4 of the circumference. The center of the arc-shaped diverter cover 33 is located on the axis of the second diffusion cone 32. The right end of the feed pipe 31 passes through the connecting hole of the cylinder 11 and is connected to the first joint 5 on the outer circumferential surface of the cylinder 11. The middle part of the feed pipe 31 is located in the notch 23 when installed. The notch 23 is used for avoidance when the feed pipe 31 is installed.

[0027] The right end of the feed pipe 31 has an external thread connected to the internal thread section 51 of the first connector 5. The first connector 5 also has an external thread section for connecting to an external material source.

[0028] A first channel is formed between the first diffusion cone 22 and the second diffusion cone 32, and a second channel is formed between the second diffusion cone 32 and the arc-shaped diverter cover 33. The first slurry passes through the first connecting sleeve 12 and the second connecting sleeve 21 in turn, and then is divided and sprayed through the first channel and the second channel; the second slurry is sprayed through the feed pipe 31 and the nozzle 34 in turn.

[0029] The first slurry and the second slurry can be the same liquid or different liquids. The feed pipe 31, the second diffusion cone 32, and the arc-shaped flow divider 33 are integrally formed.

[0030] The rotating part 4 includes an inner ring 41, an outer ring 42, blades 43, a fixed ring 44, and a limit ring 45. The two ends of multiple blades 43 distributed along the circumference are respectively connected to the inner ring 41 and the outer ring 42. The inner ring 41, blades 43, and outer ring 42 constitute a rotating body. The rotating body rotates under the impact of the airflow. The outer peripheral surface of the outer ring 42 is connected to the inner peripheral surface of the fixed ring 44 through a rolling body. The fixed ring 44 is connected to the end face of the positioning part 14, and the lower end face of the fixed ring 44 is fixed by a limit ring 45. Optionally, the outer peripheral surface of the fixed ring 44 is fixed by one or more set screws, which pass through the cylinder 11 and are connected to the fixed ring 44. The position of the blade 43 is set corresponding to the position of the air guide hole 13. The rotating atomizing airflow is used to improve the atomization effect of the slurry.

[0031] The lower end of the first diffusion cone 22 has a first endpoint, the lower end of the second diffusion cone 32 has a second endpoint, and the lower end of the arc-shaped diverter cover 33 has a third endpoint. The first, second, and third endpoints are approximately located on a straight line, and the straight line has a first intersection with the central axis of the cylinder 11. This first intersection is located inside the cylinder 11, which can improve the distribution uniformity of the first and second liquids sprayed from the diffusion section 2 and the regulating section 3. The axis of the nozzle 34 approximately overlaps the axis of the cylinder 11.

[0032] A method for using a spray granulation device for a ceramic production process, wherein the nozzle N of the spray device 20 includes the following installation steps:

[0033] Step S1: First, install the rotating part 4 on the positioning part 14 of the nozzle body 1;

[0034] Step S2: Next, the diffuser 2 is threadedly connected to the second connecting sleeve 21 through the first connecting sleeve 12 at the upper end thereof;

[0035] Step S3: Then the adjusting part 3 is threadedly connected to the first joint 5 on the outer periphery of the cylinder 11 through the threaded part at the right end of the feeding pipe 31. The notch 23 is used for avoiding the feeding pipe 31 during installation.

[0036] like Figure 3 As shown, “→” indicates the direction of fluid flow. When the spray granulation device for the ceramic production process of the present invention is spray granulated, the nozzle N of the injection device 20 of the present invention is improved / optimized in design (specifically, the design of the diffusion part 2, the adjustment part 3, and the rotation part 4). Under the mixing action of the first liquid and the second liquid in the rotating airflow, the atomized particles of the sprayed atomized slurry of the nozzle N can be more evenly distributed and the particle size can be more uniform / equal / similar, thereby improving the uniformity of the granulation particle size of the spray granulation device and improving the quality of the spray granulation.

[0037] The present invention provides a spray granulation device and method for a ceramic production process. The nozzle N of the injection device 20 is improved / optimized in design (specifically, the design of the diffusion part 2, the adjustment part 3, and the rotation part 4). Under the mixing action of the first liquid and the second liquid in the rotating airflow, the atomized particles of the sprayed atomized slurry of the nozzle N can be more evenly distributed and the particle size can be more uniform / equal, thereby improving the uniformity of the granulation particle size of the spray granulation device and improving the quality of the spray granulation.

[0038] The above-mentioned embodiments are illustrative of the present invention, not limiting thereof. It is understood that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A spray granulation device for a ceramic production process, comprising a tank body (10), a spray device (20), a first collecting box (30), a separator (40), a second collecting box (50), and a nozzle (N), wherein the spray device is provided on the top of the tank body, the lower end of the tank body is connected to the first collecting box, the lower conical portion of the tank body is connected to the separator via a pipe, the lower end of the separator is connected to the second collecting box, and the lower end of the spray device is provided with a nozzle, characterized in that: The nozzle (N) comprises a nozzle body (1), a diffuser (2), an adjusting part (3), and a rotating part (4). The diffuser and the adjusting part are arranged in the nozzle body, and part of the adjusting part is arranged in the diffuser. The rotating part rotates under the drive of the airflow. The nozzle body comprises a cylinder (11), a first connecting sleeve (12), an air guide hole (13), and a positioning part (14). The first connecting sleeve is arranged at the center position of the upper end of the cylinder. The first connecting sleeve is used to connect with the corresponding structure of the lower end of the injection device. The lower end of the first connecting sleeve is threadedly connected to the upper end of the diffuser. A plurality of air guide holes are arranged on the upper end wall plate of the cylinder. The air guide holes are connected to the compressed air source through a second joint (6) arranged on the outer end surface of the upper end wall plate. The positioning part is used to realize the axial positioning of the rotating part. The diffusion portion (2) comprises a second connecting sleeve (21), a first diffusion cone (22), and a notch (23); the second connecting sleeve is connected to the internal thread of the first connecting sleeve via an external thread; the rotating portion is arranged on the outer periphery of the first diffusion cone; and the notch is arranged at the lower end of the first diffusion cone (22). The regulating portion (3) includes a feed pipe (31), a second diffusion cone (32), an arc-shaped flow divider (33), and a nozzle (34). The feed pipe is arranged perpendicular to the axis of the cylinder (11). The left end of the feed pipe is provided with a second diffusion cone and an arc-shaped flow divider. The second diffusion cone is arranged on the inner peripheral side of the first diffusion cone and is coaxially arranged with equal taper. The upper end of the second diffusion cone has a feed port, which is axially aligned with the feed hole of the second connecting sleeve. The left end of the feed pipe (31) is arranged in the arc-shaped flow divider. The lower end of the left end of the feed pipe is provided with a nozzle. The arc-shaped flow divider has a circumferential range of 1 / 3-3 / 4 of the circumference. The center of the arc-shaped flow divider is located on the axis of the second diffusion cone. The right end of the feed pipe passes through the connecting hole of the cylinder and is connected to the first joint (5) on the outer peripheral surface of the cylinder. The middle part of the feed pipe is located in the notch when installed. The notch (23) is used for avoiding when the feed pipe is installed. A first channel is formed between the first diffusion cone (22) and the second diffusion cone (32), and a second channel is formed between the second diffusion cone and the arc-shaped diverter cover (33). The first slurry passes through the first connecting sleeve (12) and the second connecting sleeve (21) in sequence, and then is sprayed through the first channel and the second channel after being diverted; the second slurry is sprayed through the feed pipe and the nozzle in sequence.

2. A spray granulation device for a ceramic production process according to claim 1, characterized in that: The right end of the feed pipe (31) has an external thread connected to the internal thread section (51) of the first connector (5). The first connector also has an external thread section, which is used to connect to an external material source.

3. The spray granulation device for ceramic production process according to claim 1, characterized in that: The first slurry and the second slurry are the same liquid or different liquids, and the feed pipe (31), the second diffusion cone (32), and the arc-shaped diverter cover (33) are integrally formed.

4. The spray granulation device for ceramic production process according to claim 1, characterized in that: The rotating portion (4) includes an inner ring (41), an outer ring (42), blades (43), a fixed ring (44), and a limiting ring (45). The two ends of a plurality of blades distributed along the circumferential direction are connected to the inner ring and the outer ring respectively. The inner ring, the blades, and the outer ring constitute a rotating body. The rotating body rotates under the impact of the airflow. The outer peripheral surface of the outer ring is connected to the inner peripheral surface of the fixed ring through a rolling body. The fixed ring is connected to the end face of the positioning portion. The lower end face of the fixed ring is fixed by a limiting ring. The position of the blade (43) is set corresponding to the position of the air guide hole (13).

5. The spray granulation device for ceramic production process according to claim 1, characterized in that: The lower end of the first diffusion cone (22) has a first endpoint, the lower end of the second diffusion cone (32) has a second endpoint, and the lower end of the arc-shaped diverter cover (33) has a third endpoint. The first endpoint, the second endpoint, and the third endpoint are approximately located on the same straight line, and there is a first intersection between the straight line and the central axis of the cylinder (11), and the first intersection is located inside the cylinder; the axis of the nozzle (34) approximately overlaps with the axis of the cylinder.

6. A method for using a spray granulation device for a ceramic production process, comprising a spray granulation device for a ceramic production process according to any one of claims 1 to 5, wherein the nozzle (N) of the spray device (20) comprises the following installation steps: Step S1: first, the rotating portion (4) is mounted on the positioning portion (14) of the nozzle body (1); Step S2: Secondly, the diffuser (2) is threadedly connected to the second connecting sleeve (21) through the first connecting sleeve (12) at the upper end thereof; Step S3: Then, the adjusting portion (3) is threadedly connected to the first joint (5) on the outer periphery of the cylinder (11) through the threaded portion at the right end of the feed pipe (31). The notch (23) is used for avoiding the feed pipe during installation.

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