A coating can for titanium dioxide production

Abstract

This utility model discloses a coated tank for titanium dioxide production, comprising a tank body with a feed inlet at the top. A stirrer is installed at the top of the tank body and extends into the tank body. A discharge outlet is located at the lower end of the side wall of the tank body. Above the discharge outlet are four steam heaters evenly distributed along the circumference. Each steam heater includes a mounting flange, a bend, a nozzle, and an interface flange for connecting to an external steam pipeline. The mounting flange is fitted onto the bend and connected to the side wall of the tank body. The bend extends into the tank body and is inclined in the stirring direction. The inlet and outlet of the bend are respectively connected to the interface flange and the nozzle. By installing the steam heaters at the lower end of the side of the tank body and inclining the bend in the stirring direction, the heating uniformity and heat are effectively improved, the stirring intensity is increased, and the amount of steam heater material used is reduced. Furthermore, the side mounting method facilitates the disassembly and installation of the steam heaters.

Description

Technical Field

[0001] This utility model relates to the field of titanium dioxide production technology using the chloride process, and specifically to a coating tank for titanium dioxide production. Background Technology

[0002] The coating tank is a key piece of equipment in the post-processing of titanium dioxide production in the chloride process. Different products have different surface treatment formulas and processes. Generally, surface treatment is carried out after uniform heating to the process temperature to uniformly coat the surface of titanium dioxide particles with inorganic oxides, so as to achieve the pigment performance requirements of improving the weather resistance, dispersibility, and hiding power of titanium dioxide products required by the production process.

[0003] The heaters in surface treatment equipment are generally located at the top of the tank and extend into the tank. A separate support frame needs to be added inside the tank. During production, there is significant vibration, installation and disassembly are inconvenient, and the lifespan is relatively short. This has a certain impact on product quality and the output per unit of equipment. Summary of the Invention

[0004] To address the aforementioned problems, this utility model provides a coating tank for titanium dioxide production, which solves issues such as uneven heating, inconvenient installation, easy wear, and easy corrosion of the coating tank's steam heater.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a coating tank for titanium dioxide production, comprising a tank body, an inlet at the top of the tank body, an agitator installed at the top of the tank body and extending into the tank body, an outlet at the lower end of the side wall of the tank body, and four steam heaters evenly distributed around the circumference above the outlet. Each steam heater includes a mounting flange, a bend, a nozzle, and an interface flange for connecting to an external steam pipe. The mounting flange is fitted onto the bend and connected to the side wall of the tank body. The bend extends into the tank body and is inclined in the stirring direction. The inlet and outlet of the bend are respectively connected to the interface flange and the nozzle.

[0006] The steam heater also includes a diffuser tube, and the nozzle is connected to the diffuser tube.

[0007] The steam heater is made of 2507 duplex steel.

[0008] The stirrer includes a motor, a rotating shaft, and several rotating blades. The rotating shaft is vertically located at the center of the tank. The motor is located at the top of the tank and is driven by the rotating shaft. The several rotating blades are evenly spaced on the rotating shaft.

[0009] The beneficial effects of this utility model are as follows: Compared with the prior art, this utility model effectively improves the heating uniformity and heat by installing a steam heater at the lower end of the side of the tank and tilting the bent pipe towards the stirring direction, thereby increasing the stirring intensity and reducing the amount of steam heater material used. At the same time, the side installation method of the tank makes it convenient to disassemble and install the steam heater. Attached Figure Description

[0010] The present invention will be further described below with reference to the accompanying drawings: Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of the steam heater of this utility model; In the diagram: 1. Tank body; 2. Inlet; 3. Outlet; 4. Agitator; 5. Steam heater; 41. Motor; 42. Shaft; 43. Rotating blades; 51. Mounting flange; 52. Bend; 53. Nozzle; 54. Interface flange; 55. Diffuser. Detailed Implementation

[0011] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments.

[0012] The technical solution of this utility model will be described in detail below with specific embodiments. The following specific embodiments can be selected to be combined or substituted with each other according to the actual situation, and the same or similar concepts or processes may not be described again in some embodiments. Example

[0013] like Figures 1 to 2 As shown, this utility model provides a coated tank for titanium dioxide production, including a tank body 1. A feed inlet 2 is opened at the top of the tank body 1. An agitator 4 is installed at the top of the tank body 1 and extends into the interior of the tank body 1. A discharge outlet 3 is opened at the lower end of the side wall of the tank body 1. Four steam heaters 5 are evenly distributed around the circumference above the discharge outlet 3. Each steam heater 5 includes a mounting flange 51, a bend 52, a nozzle 53, and an interface flange 54 for connecting to an external steam pipe. The mounting flange 51 is sleeved on the bend 52 and connected to the side wall of the tank body 1. The bend 52 extends into the interior of the tank body 1 and is inclined in the stirring direction. The inlet and outlet of the bend 52 are respectively connected to the interface flange 54 and the nozzle 53.

[0014] By installing a steam heater 5 at the lower side of the tank body 1 and tilting the bend 51 towards the stirring direction, the heating uniformity and heat are effectively improved, the stirring intensity is increased, and the material usage of the steam heater 5 is reduced. At the same time, the side installation method of the tank body 1 facilitates the disassembly and installation of the steam heater 5.

[0015] Specifically, the steam heater 5 further includes a diffuser tube 55, and the nozzle 53 is connected to the diffuser tube 55. By increasing the number of steam heaters 5 and using diffuser tubes 55 to increase the contact area between the steam and the titanium dioxide slurry inside the tank, the heating uniformity and heating rate of titanium dioxide in the coated tank are improved.

[0016] Specifically, the steam heater 5 is made of 2507 duplex steel, which has the characteristics of wear resistance and chloride ion corrosion resistance, which can improve the service life of the steam heater 5 and reduce equipment costs.

[0017] Specifically, the stirrer 4 includes a motor 41, a rotating shaft 42 and several rotating blades 43. The rotating shaft 42 is vertically arranged in the center of the tank 1. The motor 41 is arranged at the top of the tank 1 and is driven by the rotating shaft 42. The several rotating blades 43 are evenly spaced on the rotating shaft 42.

[0018] In addition to the preferred embodiments described above, there are other embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection claimed by this utility model.

Claims

1. An enrobing tank for titanium dioxide production comprising a tank body (1), characterized in that, The tank (1) has a feed inlet (2) at the top. The agitator (4) is installed on the top of the tank (1) and extends into the tank (1). The tank (1) has a discharge outlet (3) at the lower end of the side wall. Above the discharge outlet (3) are four steam heaters (5) evenly distributed around the circumference. The steam heater (5) includes a mounting flange (51), a bend (52), a nozzle (53), and an interface flange (54) for connecting to an external steam pipe. The mounting flange (51) is fitted onto the bend (52) and connected to the side wall of the tank (1). The bend (52) extends into the tank (1) and is inclined in the direction of stirring. The inlet and outlet of the bend (52) are connected to the interface flange (54) and the nozzle (53), respectively.

2. The coated tank for titanium dioxide production according to claim 1, characterized in that, The steam heater (5) also includes a diffuser (55), and the nozzle (53) is connected to the diffuser (55).

3. The coated tank for titanium dioxide production according to claim 1, characterized in that, The steam heater (5) is made of 2507 duplex steel.

4. The coated tank for titanium dioxide production according to claim 1, characterized in that, The stirrer (4) includes a motor (41), a rotating shaft (42) and several rotating blades (43). The rotating shaft (42) is vertically located at the center inside the tank (1). The motor (41) is located at the top of the tank (1) and is driven by the rotating shaft (42). The several rotating blades (43) are evenly spaced on the rotating shaft (42).

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