CN210512754U - Cooling device in chlorination process titanium white production - Google Patents
Cooling device in chlorination process titanium white production Download PDFInfo
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- CN210512754U CN210512754U CN201921076628.4U CN201921076628U CN210512754U CN 210512754 U CN210512754 U CN 210512754U CN 201921076628 U CN201921076628 U CN 201921076628U CN 210512754 U CN210512754 U CN 210512754U
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Abstract
The utility model provides a cooling device in the production of titanium white powder by chlorination process, which comprises a cooling conduit, wherein the cooling conduit is distributed in a cooling water pool in a serpentine shape, a rotational flow piece is arranged in the first section of the cooling conduit, fins are arranged on the outer wall of the cooling conduit, and groove-shaped metal sheets are added on the surface of a smooth outer wall by changing the shape of the outer wall of the cooling conduit; the internal form of the cooling conduit is changed, and the heat transfer of the cooling conduit is enhanced by adding the rotational flow piece in the first section of the cooling conduit. The heat transfer area and the degree of turbulence of the cooling water near the outer surface of the cooling duct, and the degree of turbulence of the oxidizing gas inside the cooling duct are increased.
Description
Technical Field
The utility model relates to a chlorination process titanium white powder production field, especially a cooling device in chlorination process titanium white powder production.
Background
The rutile type titanium dioxide produced by the titanium white produced by the chlorination method has much better covering power, decoloring power and other properties than anatase type titanium dioxide, and in the process of preparing the rutile titanium dioxide by the chlorination method, the vapor phase oxidation of titanium tetrachloride is a key step for preparing the titanium dioxide by the chlorination method. Titanium tetrachloride is oxidized in a gas phase in an oxidation reactor to generate a suspended airflow with the titanium dioxide content of about 33 percent, the temperature of the suspended airflow removed from the oxidation reactor is up to over 1000 ℃, and in order to ensure that titanium dioxide grains cannot grow up continuously and maintain qualified grain sizes. And the service life of a filter bag of the oxidation bag filter is prolonged, and the temperature of the suspended air flow needs to be reduced to below 275 ℃. Therefore, proper cooling equipment is needed to cool the high-temperature suspended airflow, the existing cooling guide pipe is immersed in cooling water to realize cooling of the high-temperature suspended airflow, the surface of the cooling guide pipe is smooth, the heat transfer area of the oxidation product with longer length in the cooling guide pipe is small, the heat transfer efficiency is low, and the length of the cooling guide pipe and the cooling time are longer.
Disclosure of Invention
The utility model aims at providing a cooling device in chlorination process titanium white powder production.
The utility model discloses a realize through following technological means: the utility model provides a cooling device in chlorination method titanium white powder production, includes cooling conduit, and cooling conduit is snakelike distribution in the cooling water pond, its characterized in that: the cooling guide pipe is characterized in that a rotational flow piece is arranged in the first section of the cooling guide pipe, and fins are arranged on the outer wall of the cooling guide pipe.
According to the preferable technical scheme, the rotational flow piece is a metal spiral ring.
According to the preferable technical scheme, the metal spiral coil is made of Iconel600, cylindrical in shape and smooth in surface.
According to the preferable technical scheme, the connection mode of the first section of the cooling conduit and the elbow section of the cooling conduit is a flange sectional connection mode.
According to the preferable technical scheme, the fins are groove-shaped metal sheets made of Iconel600.
According to the preferable technical scheme, the head, the middle and the tail of the metal spiral coil are respectively fixed on the inner wall of the cooling conduit by Iconel600 metal strips.
The cooling duct has the beneficial technical effects that the groove-shaped metal sheet is added on the surface of the smooth outer wall by changing the shape of the outer wall of the cooling duct; the internal form of the cooling conduit is changed, and the heat transfer of the cooling conduit is enhanced by adding the rotational flow piece in the first section of the cooling conduit. The heat transfer area and the degree of turbulence of the cooling water near the outer surface of the cooling duct, and the degree of turbulence of the oxidizing gas inside the cooling duct are increased. The thickness of the cooling water layer outside the cooling duct and the bottom layer of oxidizing gas inside the first section of the cooling duct are reduced. Thereby improving the heat transfer capacity and heat transfer efficiency of the cooling conduit and further shortening the length of the cooling conduit and the cooling time of the oxidation products.
Description of the drawings: FIG. 1 is a schematic structural view of the present invention;
wherein, the cooling conduit elbow 1, the cooling conduit head 2, the 3 rotational flow parts, the 4 cooling water tanks, the 5 material inlets, the 6 material outlets, the 7 metal fixing strips, the 8 flanges and the 9 fins.
Detailed Description
As shown in fig. 1: a cooling device in the production of titanium dioxide by a chlorination process is characterized in that cooling pipes are distributed in a cooling water pool 4 in a serpentine manner, each cooling pipe comprises a material inlet 5 and a material outlet 6, the nominal diameter DN200 of the cooling pipe is made of Iconel600, the length of each cooling pipe is 120 m, fins 9 arranged on the outer wall of each cooling pipe are groove-shaped metal sheets made of Iconel600, the length of each fin 9 is 100mm, the longitudinal distance between the fins is 150mm, the radial distance between the fins is 100mm, the fins 9 are uniformly distributed on the outer wall of each cooling pipe, the initial temperature of an oxidation product received by the first section 2 of each cooling pipe is higher, therefore, the swirl component 3 is added at the first section of the cooling conduit, the swirl component 3 of the cooling conduit is positioned at the central position of the first section in the first section 2 of the cooling conduit and is a metal spiral coil, the material of the spiral coil is Iconel600, the shape is cylindrical, the surface is smooth, and the head, the middle and the tail of the metal spiral coil are respectively fixed on the inner wall of the cooling duct by using Iconel600 metal fixing strips 7. The metal fixing strip 7 adopts a welding mode, the first section 2 of the cooling conduit is in flange connection in a sectional connection mode, the top end 2 of the first section of the cooling conduit is connected with the cooling conduit elbow 1 through a connecting flange 8, the distance between the metal fixing strip and the flange connection part is 5cm, so that the metal fixing strip 7 and the rotational flow piece 3 are welded and fixed conveniently, a cooling water injection port of the cooling water pool is positioned on the upper part of the cooling water pool 4 and is close to a low-temperature area of the cooling conduit, a cooling water outlet of the cooling water pool is positioned at the bottom of the cooling water pool 4 and is close to a high-temperature area of the cooling conduit, a circulating pump is arranged on a water outlet pipeline of the cooling.
Claims (6)
1. The utility model provides a cooling device in chlorination method titanium white powder production, includes cooling conduit, and cooling conduit is snakelike distribution in the cooling water pond, its characterized in that: the cooling guide pipe is characterized in that a rotational flow piece is arranged in the first section of the cooling guide pipe, and fins are arranged on the outer wall of the cooling guide pipe.
2. The cooling device in the production of titanium dioxide by a chlorination process according to claim 1, characterized in that: the rotational flow piece is a metal spiral ring.
3. The cooling device in the production of titanium dioxide by a chlorination process according to claim 2, wherein the metal spiral coil is made of Iconel600, is cylindrical and has a smooth surface.
4. The cooling device in the production of titanium dioxide by the chloride process according to claim 1, wherein the connection mode of the first section of the cooling conduit and the elbow section of the cooling conduit is a flange sectional connection mode.
5. The cooling device in the production of titanium dioxide by a chlorination process according to claim 1,
the fin is a groove-shaped metal sheet made of Iconel600.
6. The cooling device in the production of titanium dioxide by a chlorination process according to claim 2, wherein the head, the middle and the tail of the metal coil are respectively fixed on the inner wall of the cooling conduit by Iconel600 metal strips.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921076628.4U CN210512754U (en) | 2019-07-11 | 2019-07-11 | Cooling device in chlorination process titanium white production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921076628.4U CN210512754U (en) | 2019-07-11 | 2019-07-11 | Cooling device in chlorination process titanium white production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210512754U true CN210512754U (en) | 2020-05-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921076628.4U Active CN210512754U (en) | 2019-07-11 | 2019-07-11 | Cooling device in chlorination process titanium white production |
Country Status (1)
| Country | Link |
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| CN (1) | CN210512754U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111892181A (en) * | 2020-08-14 | 2020-11-06 | 攀钢集团钛业有限责任公司 | Purification method and circulation system for cooling water of titanium chloride white oxidation device |
-
2019
- 2019-07-11 CN CN201921076628.4U patent/CN210512754U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111892181A (en) * | 2020-08-14 | 2020-11-06 | 攀钢集团钛业有限责任公司 | Purification method and circulation system for cooling water of titanium chloride white oxidation device |
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