A drying fan device for rapid drying of titanium dioxide slurry

Abstract

This utility model relates to the field of titanium dioxide drying technology, specifically disclosing a drying fan device for rapid drying of titanium dioxide slurry, including a drying tank, a blower, a heater, a cyclone separator, and a storage tank. The bottom of the drying tank is connected to an air inlet pipe, which is connected to the heater. The heater is connected to the blower. A centrifugal atomizer is installed at the top of the drying tank. The feed end of the centrifugal atomizer is connected to a pressure pump, which is connected to the discharge end of the storage tank. The inlet of the air inlet pipe extends to the middle of the drying tank. The bottom of the drying tank is connected to a discharge pipe, which is connected to the air inlet of the cyclone separator. The centrifugal atomizer atomizes the titanium dioxide slurry into droplets, allowing the heat flow to rapidly dry the titanium dioxide droplets. This method achieves high drying efficiency and eliminates the need for preliminary drying of the titanium dioxide slurry.

Description

Technical Field

[0001] This utility model relates to the field of titanium dioxide drying technology, and in particular to a drying fan device for rapid drying of titanium dioxide slurry. Background Technology

[0002] In existing technologies, pulse jet dryers are commonly used to dry hydrated titanium dioxide materials. These dryers utilize a screw conveyor and a blower to separately feed the hydrated titanium dioxide and hot air into the drying tube. The muddy or granular titanium dioxide is suspended in the hot air, and drying occurs during the airflow process. Existing pulse jet dryers are suitable for titanium dioxide materials with a moisture content of less than 40%. If the titanium dioxide has a higher moisture content and forms a slurry, it needs to be preliminarily dehydrated before being fed into the pulse jet dryer. Therefore, existing airflow drying equipment needs to be improved to reduce the number of process steps. Utility Model Content

[0003] To address the problems mentioned in the background art, the purpose of this utility model is to provide a drying fan device for rapidly drying slurry titanium dioxide.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows: A drying fan device for rapid drying of titanium dioxide slurry includes a drying tank, a blower, a heater, a cyclone separator, and a storage tank. The bottom of the drying tank is connected to an air inlet pipe, which is connected to the heater. The heater is connected to the blower. A centrifugal atomizer is installed on the top of the drying tank, with its atomizing disc located at the top of the drying tank. A pressure pump is connected to the feed end of the centrifugal atomizer, which is connected to the discharge end of the storage tank. The inlet of the air inlet pipe extends to the middle of the drying tank. A discharge pipe is connected to the bottom of the drying tank, and the discharge pipe is connected to the air inlet of the cyclone separator.

[0005] Furthermore, the drying tank is provided with a first jacket, the bottom of the first jacket is provided with a first fluid inlet, the top of the first jacket is provided with a first fluid outlet, the exhaust end of the cyclone separator is connected to an induced draft fan, the exhaust end of the induced draft fan is connected to the first fluid inlet through a pipe, the storage tank is provided with a second jacket, the bottom of the second jacket is provided with a second fluid inlet, the top of the second jacket is provided with a second fluid outlet, and the first fluid outlet is connected to the second fluid inlet through a pipe.

[0006] Furthermore, the ash discharge end of the cyclone separator is connected to a collection box.

[0007] The beneficial effects of this invention are as follows: the slurry titanium dioxide is atomized into fine droplets by a centrifugal atomizer, and the water in the titanium dioxide droplets can be rapidly evaporated under the action of high temperature hot air to form titanium dioxide powder, thereby achieving the purpose of rapid drying. There is no need to perform preliminary drying of the slurry titanium dioxide, which simplifies the process. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of the structure of this utility model.

[0009] Explanation of the attached drawing numbers: 1. Drying tank; 11. Air inlet pipe; 12. Discharge pipe; 13. First jacket; 131. First fluid inlet; 132. First fluid outlet; 2. Blower; 3. Heater; 4. Cyclone separator; 5. Storage tank; 51. Second jacket; 511. Second fluid inlet; 512. Second fluid outlet; 6. Centrifugal atomizer; 7. Pressure pump; 8. Exhaust fan; 9. Collection box. Detailed Implementation

[0010] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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 are within the protection scope of the present utility model. Example

[0011] like Figure 1 As shown, a drying fan device for rapid drying of titanium dioxide slurry includes a drying tank 1, a blower 2, a heater 3, a cyclone separator 4, and a storage tank 5. An air inlet pipe 11 is connected to the bottom of the drying tank 1, and the inlet of the air inlet pipe 11 extends to the middle of the drying tank 1. The air inlet pipe 11 is connected to the heater 3, and the heater 3 is connected to the blower 2. Preferably, the heater 3 includes a housing and several heating wires disposed within the housing. An air inlet and an air outlet are respectively provided on both sides of the housing in the horizontal direction. The several heating wires are arranged in... The heater 3 is located between the air inlet and the air outlet. The exhaust port of the heater 3 is connected to the air inlet pipe 11, and the air inlet of the heater 3 is connected to the exhaust end of the blower 2. A centrifugal atomizer 6 is installed on the top of the drying tank 1. The atomizing plate of the centrifugal atomizer 6 is located on the top of the drying tank 1. The feed end of the centrifugal atomizer 6 is connected to the pressure pump 7 through a pipe. The suction end of the pressure pump 7 is connected to the discharge end of the storage tank 5 through a pipe. The bottom of the drying tank 1 is connected to the discharge pipe 12, which is connected to the air inlet of the cyclone separator 4.

[0012] When drying titanium dioxide slurry, a pressure pump 7 pumps the titanium dioxide slurry in the storage tank 5 into a centrifugal atomizer 6. The centrifugal atomizer 6 atomizes the titanium dioxide slurry into fine droplets, which are then blown into the drying tank 1 by a blower 2. Under the action of the high-temperature hot air, the moisture in the titanium dioxide droplets can be rapidly evaporated to form titanium dioxide powder, achieving the purpose of rapid drying. The dried titanium dioxide powder and hot air are discharged from the discharge pipe 12 into the cyclone separator 4. The cyclone separator 4 can separate the titanium dioxide powder and the hot air. The titanium dioxide powder is discharged from the ash discharge port of the cyclone separator 4, and the hot air is discharged from the exhaust port of the cyclone separator 4. There is no need to perform preliminary drying of the titanium dioxide slurry, which simplifies the process.

[0013] In this embodiment, a first jacket 13 is provided on the outside of the drying tank 1. A first fluid inlet 131 is provided at the bottom of the first jacket 13, and a first fluid outlet 132 is provided at the top of the first jacket 13. The exhaust end of the cyclone separator 4 is connected to an induced draft fan 8. The exhaust end of the induced draft fan 8 is connected to the first fluid inlet 131 through a pipe. A second jacket 51 is provided on the outside of the storage tank 5. A second fluid inlet 511 is provided at the bottom of the second jacket 51, and a second fluid outlet 512 is provided at the top of the second jacket 51. The first fluid outlet 132 is connected to the second fluid inlet 511 through a pipe. The excess heat flow discharged from the drying tank 1 enters the first jacket 13, which can insulate the tank wall of the drying tank 1 and ensure the drying effect under low room temperature conditions. In addition, the heat flow will also enter the second jacket 51 after passing through the first jacket 13, which will insulate the tank wall of the storage tank 5 and ensure the temperature of the slurry titanium dioxide, thereby improving the atomization effect of the slurry titanium dioxide.

[0014] In this embodiment, the ash discharge end of the cyclone separator 4 is connected to a collection box 9, which facilitates the centralized collection of dried titanium dioxide powder.

[0015] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A drying fan device for rapid drying of titanium dioxide slurry, comprising a drying tank (1), a blower (2), a heater (3), a cyclone separator (4), and a storage tank (5), wherein the bottom of the drying tank (1) is connected to an air inlet pipe (11), the air inlet pipe (11) is connected to the heater (3), and the heater (3) is connected to the blower (2), characterized in that, A centrifugal atomizer (6) is installed on the top of the drying tank (1). The atomizing disc of the centrifugal atomizer (6) is located at the top of the drying tank (1). A pressure pump (7) is connected to the feed end of the centrifugal atomizer (6). The pressure pump (7) is connected to the discharge end of the storage tank (5). The inlet of the air inlet pipe (11) extends to the middle of the drying tank (1). A discharge pipe (12) is connected to the bottom of the drying tank (1). The discharge pipe (12) is connected to the air inlet of the cyclone separator (4).

2. The drying fan device for rapid drying of titanium dioxide slurry according to claim 1, characterized in that, The drying tank (1) is provided with a first jacket (13) on the outside. The bottom of the first jacket (13) is provided with a first fluid inlet (131) and the top of the first jacket (13) is provided with a first fluid outlet (132). The exhaust end of the cyclone separator (4) is connected to an induced draft fan (8). The exhaust end of the induced draft fan (8) is connected to the first fluid inlet (131) through a pipe. The storage tank (5) is provided with a second jacket (51) on the outside. The bottom of the second jacket (51) is provided with a second fluid inlet (511) and the top of the second jacket (51) is provided with a second fluid outlet (512). The first fluid outlet (132) is connected to the second fluid inlet (511) through a pipe.

3. The drying fan device for rapid drying of titanium dioxide slurry according to claim 1, characterized in that, The ash discharge end of the cyclone separator (4) is connected to a collection box (9).

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