Spray drying tower for ceramic tile production

Abstract

The utility model provides a spray drying tower for ceramic tile production, which comprises a tower body, a slurry atomizing device is arranged in the tower body in a penetrating manner, a high-temperature drying device for spiral air supply is further arranged in the tower body and is positioned below the slurry atomizing device, and a particle screening component is fixedly mounted at an outlet at the bottom of the tower body. The slurry atomizing device comprises a high-pressure atomizer and a liquid supply pipe, one end of the liquid supply pipe is connected with the output end of the high-pressure atomizer, the other end of the liquid supply pipe is fixedly connected with the inner side wall of the tower body, and a plurality of first atomizing nozzles and second atomizing nozzles are circumferentially distributed on the outer surface of the liquid supply pipe; the multiple first atomization nozzles and the multiple second atomization nozzles are distributed in an up-down staggered mode, after atomized slurry blown out by the second atomization nozzles is blended and dried with high-temperature gas, the high-temperature drying device for spiral gas supply can slow down the falling speed of the atomized slurry, and the atomized slurry blown out by the first atomization nozzles can be blended and dried with subsequent high-temperature gas; the drying effect and the finished product conversion rate are further improved.

Description

Technical Field

[0001] The utility model relates to the field of drying towers, in particular to a spray drying tower for tile production. Background Art

[0002] Spray drying is a drying process in which the raw liquid is placed in an atomizer to separate it into droplets, and the powdery product is obtained by direct contact between hot air or other gases and the droplets. Spray drying technology is widely used in ceramic production technology. Spray drying technology has many advantages such as fast drying speed, good effect, wide application range, simplified production process, easy operation, and not easy to be contaminated by materials. Therefore, the spray drying tower is one of the necessary equipment in the current ceramic production process.

[0003] The structure of the existing spray drying tower for ceramic powder production is mainly that a hot air supply device, an exhaust device, a slurry atomization device and a powder outlet are arranged on a tower body. The slurry is transported by a single main pipe of the slurry atomization device. The structure is relatively simple, but there are still many common problems in the traditional spray drying tower. The slurry is mixed, stirred and ground with a binder in a certain mass ratio, and then enters the spray drying tower for drying. The slurry solution is easy to adhere to the tower wall.

[0004] Therefore, it is necessary to provide a new spray drying tower for tile production to solve the above-mentioned technical problems. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a spray drying tower for tile production.

[0006] The utility model provides a spray drying tower for tile production, comprising a tower body, a slurry atomizing device is provided inside the tower body, a high-temperature drying device for spiral air supply is also provided inside the tower body, and the high-temperature drying device is located below the slurry atomizing device, and a sieve particle assembly is fixedly installed at the outlet of the bottom of the tower body;

[0007] The mud atomization device includes a high-pressure atomizer and a liquid supply pipe, one end of the liquid supply pipe is connected to the output end of the high-pressure atomizer, and the other end of the liquid supply pipe is fixedly connected to the inner wall of the tower body. The outer surface of the liquid supply pipe is circumferentially distributed with a plurality of first atomizing nozzles and a second atomizing nozzle, and the plurality of first atomizing nozzles and the second atomizing nozzles are staggered up and down.

[0008] Furthermore, the high-temperature drying device comprises a heating box, an air supply pipe and a connecting ring, the two ends of the air supply pipe are respectively connected to the heating box and the inner cavity of the connecting ring, the connecting ring is fixedly installed on the outer side wall of the tower body, and the outer surface of the connecting ring is circumferentially and equidistantly distributed with a plurality of air outlet pipes;

[0009] One end of the air outlet pipe passes through the outer wall of the tower body and extends inwardly, and one end of the air outlet pipe located inside the tower body is also connected to an air outlet head, and the output end of the air outlet head is arranged to be inclined upward.

[0010] Furthermore, the particle screening assembly includes a conical screen, the edge of which is fixedly connected to the inner wall of the tower body, the bottom of which is connected to a particle outlet cylinder, and the tail end of the particle outlet cylinder passes through the outer side of the tower body near the bottom outlet.

[0011] Furthermore, the edge of the conical screen is inclined toward the inner wall of the tower body.

[0012] Furthermore, the outer side wall of the conical screen is also provided with a high-frequency vibrator.

[0013] Furthermore, the inner side wall of the tower body is also provided with a circle of conical guide rings, and the conical guide rings are fixedly connected to the outer surface of the liquid supply pipe.

[0014] Compared with the related art, the spray drying tower for tile production provided by the utility model has the following beneficial effects:

[0015] When the atomized mud blown out by the second atomizing nozzle below is mixed and dried with the high-temperature gas, the high-temperature drying device with spiral air supply can slow down the falling speed of the atomized mud. The air supply port is opposite to the inner wall of the tower body, and the mud solution is not easy to stick to the tower wall. The atomized mud blown out by the first atomizing nozzle located above can be mixed and dried with the subsequent high-temperature gas, further improving the drying effect and the conversion rate of finished products. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a spray drying tower for tile production provided by the utility model;

[0017] Figure 2 A schematic cross-sectional view of a spray drying tower for producing ceramic tiles provided by the utility model;

[0018] Figure 3 for Figure 2 Schematic diagram of the enlarged structure at A shown.

[0019] Numbers in the figure: 1. tower body; 2. high-pressure atomizer; 3. liquid supply pipe; 4. first atomizing nozzle; 5. second atomizing nozzle; 6. heating box; 7. air supply pipe; 8. connecting ring; 9. air outlet pipe; 10. air outlet head; 11. conical screen; 12. particle outlet cylinder; 13. high-frequency vibrator; 14. conical guide ring. DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0021] Please refer to Figure 1 , Figure 2 as well as Figure 3 ,in, Figure 1 This is a schematic diagram of the overall structure of a spray drying tower for tile production provided by the utility model; Figure 2 A schematic cross-sectional view of a spray drying tower for producing ceramic tiles provided by the utility model; Figure 3 for Figure 2 A schematic diagram of the enlarged structure shown.

[0022] In the specific implementation process, Figure 1-Figure 3 As shown, the spray drying tower for tile production includes a tower body 1, a slurry atomizing device is provided inside the tower body 1, a high-temperature drying device for spiral air supply is also provided inside the tower body 1, and the high-temperature drying device is located below the slurry atomizing device, and a sieve particle assembly is fixedly installed at the outlet at the bottom of the tower body 1;

[0023] The mud atomization device includes a high-pressure atomizer 2 and a liquid supply pipe 3, one end of the liquid supply pipe 3 is connected to the output end of the high-pressure atomizer 2, and the other end of the liquid supply pipe 3 is fixedly connected to the inner wall of the tower body 1. The outer surface of the liquid supply pipe 3 is circumferentially distributed with a plurality of first atomizing nozzles 4 and a second atomizing nozzle 5. The plurality of first atomizing nozzles 4 and the second atomizing nozzles 5 are staggered and distributed up and down to perform layered blending on the atomized mud. When the atomized mud blown out by the second atomizing nozzle 5 below is blended and dried with the high-temperature gas, the high-temperature drying device with spiral air supply can slow down the falling speed of the atomized mud. The air supply port is opposite to the inner wall of the tower body 1, and the mud solution is not easy to adhere to the tower wall. The atomized mud blown out by the first atomizing nozzle 4 located above can be blended and dried with the subsequent high-temperature gas, thereby further improving the drying effect and the finished product conversion rate.

[0024] It should be noted that the mud atomization device uses high pressure to atomize the mud, and the other end of the high-pressure atomizer 2 is also connected to a mud pool for supplying mud, which is supplied by air pressure transportation;

[0025] In order to prevent the high-temperature gas and the mud from contacting the inner wall of the tower body 1 for a long time, a cone-shaped guide ring 14 is provided on the inner wall of the tower body 1, and the cone-shaped guide ring 14 is fixedly connected to the outer surface of the liquid supply pipe 3;

[0026] The high-temperature drying device includes a heating box 6, an air supply pipe 7 and a connecting ring 8. The two ends of the air supply pipe 7 are respectively connected to the heating box 6 and the inner cavity of the connecting ring 8. The connecting ring 8 is fixedly installed on the outer wall of the tower body 1. The outer surface of the connecting ring 8 is circumferentially and evenly distributed with multiple air outlet pipes 9.

[0027] Specifically, the high-temperature gas generated by the heating box 6 is transported through the gas supply pipe 7, and the transportation method can be fan transportation;

[0028] One end of the air outlet pipe 9 passes through the outer wall of the tower body 1 and extends inwardly. One end of the air outlet pipe 9 located inside the tower body 1 is also connected to an air outlet head 10. The output end of the air outlet head 10 is arranged to be tilted upward. Multiple air outlet heads 10 blow air upward and form a vortex shape as the gas flows.

[0029] The particle screening assembly includes a conical screen 11, the edge of which is fixedly connected to the inner wall of the tower body 1, the bottom of the conical screen 11 is connected to a particle outlet cylinder 12, the tail end of the particle outlet cylinder 12 passes through the outer side of the tower body 1 near the bottom outlet, and the edge of the conical screen 11 is inclined toward the inner wall of the tower body 1. In order to prevent some particles from staying on the outer wall of the conical screen 11, a high-frequency vibrator 13 is also provided.

[0030] The working principle provided by the utility model is as follows: the mud atomization device utilizes high pressure to atomize the mud, and the high-temperature gas generated by the heating box 6 is transported through the air supply pipe 7, and the transportation method can be fan transportation. Multiple air outlet heads 10 blow air upward at an angle and form a vortex with the flow of gas. When the atomized mud blown out by the second atomizing nozzle 5 below is blended and dried with the high-temperature gas, the high-temperature drying device with spiral air supply can slow down the falling speed of the atomized mud. The air supply port is opposite to the inner wall of the tower body 1, and the mud solution is not easy to adhere to the tower wall. The atomized mud blown out by the first atomizing nozzle 4 located above can be blended and dried with the subsequent high-temperature gas. The dried particles will fall into the conical screen 11 and then be discharged through the particle outlet tube 12. The high-frequency vibrator 13 can also be started in the middle to prevent some particles from staying on the conical screen 11. Smaller particles or liquids will pass through the conical screen 11 and be discharged from the outlet at the bottom of the tower body 1.

[0031] The circuits and controls involved in the present invention are all prior art and will not be described in detail here.

[0032] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A spray drying tower for tile production, characterized in that: It comprises a tower body (1), a slurry atomizing device is provided inside the tower body (1), a high-temperature drying device for spiral air supply is also provided inside the tower body (1), and the high-temperature drying device is located below the slurry atomizing device, and a sieve particle assembly is fixedly installed at the outlet at the bottom of the tower body (1); The slurry atomization device comprises a high-pressure atomizer (2) and a liquid supply pipe (3), one end of the liquid supply pipe (3) is connected to the output end of the high-pressure atomizer (2), the other end of the liquid supply pipe (3) is fixedly connected to the inner wall of the tower body (1), and the outer surface of the liquid supply pipe (3) is circumferentially distributed with a plurality of first atomizing nozzles (4) and a second atomizing nozzle (5), and the plurality of first atomizing nozzles (4) and the second atomizing nozzles (5) are staggered in an up-and-down manner.

2. The spray drying tower for tile production according to claim 1, characterized in that: The high-temperature drying device comprises a heating box (6), an air supply pipe (7) and a connecting ring (8); the two ends of the air supply pipe (7) are respectively connected to the inner cavity of the heating box (6) and the connecting ring (8); the connecting ring (8) is fixedly mounted on the outer wall of the tower body (1); and the outer surface of the connecting ring (8) is provided with a plurality of air outlet pipes (9) equidistantly distributed in the circumferential direction; One end of the air outlet pipe (9) passes through the outer wall of the tower body (1) and extends inwardly, and the end of the air outlet pipe (9) located inside the tower body (1) is also connected to an air outlet head (10), and the output end of the air outlet head (10) is arranged to be inclined upward.

3. The spray drying tower for tile production according to claim 2, characterized in that: The particle screening assembly comprises a conical screen (11), the edge of which is fixedly connected to the inner wall of the tower body (1), the bottom of which is connected to a particle outlet cylinder (12), the tail end of which passes through the outer side of the tower body (1) near the bottom outlet.

4. The spray drying tower for tile production according to claim 3, characterized in that: The edge of the conical screen (11) is arranged to be inclined toward the inner wall of the tower body (1).

5. The spray drying tower for tile production according to claim 4, characterized in that: The outer side wall of the conical screen (11) is also provided with a high-frequency vibrator (13).

6. The spray drying tower for tile production according to claim 5, characterized in that: The inner side wall of the tower body (1) is also provided with a circle of conical guide ring (14), and the conical guide ring (14) is fixedly connected to the outer surface of the liquid supply pipe (3).

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