CN215694890U - Cyclone separator for titanium tetrachloride dust removal - Google Patents
Cyclone separator for titanium tetrachloride dust removal Download PDFInfo
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- CN215694890U CN215694890U CN202121245665.0U CN202121245665U CN215694890U CN 215694890 U CN215694890 U CN 215694890U CN 202121245665 U CN202121245665 U CN 202121245665U CN 215694890 U CN215694890 U CN 215694890U
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- cyclone separator
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Abstract
A cyclone separator for titanium tetrachloride dust removal comprises a separator shell and an ash collecting bin, wherein the separator shell comprises an upper barrel and a lower cone, the ash collecting bin is communicated with an opening at the bottom of the lower cone, a gas inlet communicated with the interior of the separator is formed in the side surface of the upper barrel, a lining is fixedly arranged on the inner wall of the separator shell, a spiral guide plate extending downwards is arranged in the upper barrel to form a spiral downward guide flow channel, airflow is guided to flow downwards along the guide flow channel in a rotating mode, the included angle between the airflow flow direction and the horizontal plane is not more than 15 degrees, the highest point of the uppermost layer of the guide plate is not lower than the upper edge of the gas inlet of the cyclone separator, and the lowest point of the lowermost layer of the surface is not lower than the boundary line between the upper barrel and the lower cone; the width of the guide plate is b, the diameter of the gas inlet is a, and b = (0.7-1) a. The utility model has the characteristics of good use effect, long service life and high dust removal efficiency.
Description
Technical Field
The utility model belongs to the technical field of separation and dust removal, and particularly relates to a cyclone separator for improving dust removal efficiency in a titanium tetrachloride production process.
Background
In the production process of titanium tetrachloride, the main raw materials in the chlorination stage are a titanium-rich material and petroleum coke, the titanium tetrachloride is generated by reacting with substances such as chlorine and the like at 950-1000 ℃ in a fluidized bed chlorination furnace according to a certain proportion, the generated titanium tetrachloride gas can bring out part of dust when being discharged out of the chlorination furnace, the dust mainly comprises silicon dioxide, carbon powder, oxides of some metals, chlorides and the like, the solid-liquid ratio of coarse titanium tetrachloride is as high as even 35%, pipe blockage and titanium tetrachloride particles are easy to occur, a series of problems are brought to subsequent refining, the quality of the titanium tetrachloride also seriously influences the quality of a titanium sponge product, and the dust removal efficiency of a cyclone separator is low at the end of root return. Therefore, the chlorination stage is used as the front end of the whole process of titanium sponge production, the dust removal process is particularly important, and a partition plate dust remover and a cyclone separator are mainly adopted for dust removal in the industry at present.
The main body of the clapboard dust remover is oversize, and the efficiency is not high; the cyclone separator has small size and high efficiency, and is widely adopted in the dust removal process in the production of titanium tetrachloride. However, the cyclone separator is used in the production of titanium tetrachloride, and has the following problems: (1) the cylinder wall is quickly abraded due to the fact that chlorine contained in the gas erodes and corrodes the cylinder wall, and dust rings (airflow with extremely high dust concentration) rotating at high speed exist near the top cover, so that fine dust is prone to leaking to the air outlet; (2) because the distance between the airflow inlet and the airflow outlet is too close, short circuit of fine dust is easy to generate; (3) most of gas flows to the central part from the side wall area of the cone, so that secondary winding of fine dust reaching the wall surface of the cone is caused, the titanium tetrachloride dust removal efficiency is low, a large amount of dust below 5 microns cannot be removed, the dust directly enters a chlorination subsequent system and a steaming production process, the oxygen and carbon content of sponge titanium is increased, the dust is seriously added, and the product quality and the production operation stability are seriously influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects and provides the cyclone separator for removing dust from titanium tetrachloride, which has the characteristics of good use effect, long service life and high dust removal efficiency.
In order to achieve the purpose, the utility model adopts the technical scheme that: a cyclone separator for titanium tetrachloride dust removal comprises a separator shell and an ash collecting bin, wherein the separator shell comprises an upper barrel and a lower cone, the ash collecting bin is communicated with an opening at the bottom of the lower cone, a gas inlet communicated with the interior of the separator is formed in the side surface of the upper barrel, a lining is fixedly arranged on the inner wall of the separator shell, a spiral guide plate extending downwards is arranged in the upper barrel to form a spiral downward guide flow channel, airflow is guided to flow downwards along the guide flow channel in a rotating mode, the included angle between the airflow flow direction and the horizontal plane is not more than 15 degrees, the highest point of the uppermost layer of the guide plate is not lower than the upper edge of the gas inlet of the cyclone separator, and the lowest point of the lowermost layer of the surface is not lower than the boundary line between the upper barrel and the lower cone; the width of the guide plate is b, the diameter of the gas inlet is a, and b = (0.7-1) a.
The linear velocity direction of any gas in the diversion flow channel and the tangential included angle at the linear velocity direction are larger than 0 degree and smaller than or equal to 30 degrees.
The guide plate is fixedly arranged on the lining.
The flow direction of the gas inlet is parallel to the tangential direction of the inlet of the flow guide channel.
The upper cylinder body is connected with the lower cone body through a flange.
And a lining is arranged on the inner side of the top cover at the top opening of the upper barrel.
The upper part of the ash collecting bin is connected with the lower cone through a flange, and the lower part of the ash collecting bin is provided with a dust outlet.
The diameter of the cavity of the ash collecting bin is larger than the caliber of the bottom opening of the separation cavity.
And a support is welded on the outer side of the upper cylinder body to fix the cyclone separator.
The utility model has the beneficial effects that: the guide plate can guide airflow to spirally flow along the guide flow channel, limit the width of the guide plate and prevent the airflow from flowing close to the cylinder wall, so that erosion corrosion to the cylinder wall can be reduced, airflow turbulence caused by uneven cylinder wall is avoided, and the airflow can stably flow; in addition, after the airflow is constrained in the flow guide channel, the short circuit of the airflow between the gas inlet and the gas outlet can be avoided; the lining arranged in the utility model can further protect the shell and the top cover of the separator, and prolong the service life of the separator; according to the utility model, a valve is not arranged between the ash collecting bin and the lower cone of the separator, so that dust on the cone surface of the cone can fall into the ash collecting bin along the cone surface, and the diameter of the ash collecting bin is larger than the diameter of the bottom of the lower cone, so that after air flow enters the ash collecting bin, the flow velocity is reduced, the dust is more easily settled, and secondary winding of the dust cannot be caused by the air flow with lower flow velocity, so that the dust separation efficiency and the dust separation effect can be improved.
The utility model is tried out by gas-solid separation in the titanium tetrachloride industry, and can realize that:
(1) the dust removal efficiency of the cyclone separator is improved by 10-15%, impurities are reduced to enter a chlorination subsequent system and a steaming process, the stability of a chlorination system is effectively improved, and the quality of titanium tetrachloride and titanium sponge products is improved.
(2) The use of the lining prolongs the service life of the separator by 20-30%, and improves the safety and reliability of the operation of the equipment.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a top view of the present invention with the top cover removed;
the labels in the figure are: 1. the device comprises a gas inlet, 2, a lining, 3, a gas outlet central pipe, 4, a top cover, 5, an upper barrel, 6, a guide plate, 7, a barrel flange, 8, a cone flange, 9, a lower cone, 10, an ash bin flange, 11, an ash collecting bin, 12, a dust outlet, 13 and a support.
Detailed Description
The present invention will be described in further detail with reference to the following drawings and examples, but the utility model is not limited thereto.
Referring to the attached drawings, the cyclone separator for titanium tetrachloride dust removal comprises a separator shell and an ash collection bin 11, wherein the separator shell comprises an upper barrel 5 and a lower cone 9, a barrel flange 7 is welded on the lower portion of the upper barrel 5, a cone flange 8 is welded on the upper portion of the lower cone 9, the barrel flange 7 is fixedly connected with the cone flange 8, the ash collection bin 11 is communicated with an opening in the bottom of the lower cone 9, an ash bin flange 10 is arranged on the upper portion of the ash collection bin 11, the ash bin flange 10 is connected with the lower cone 9 through bolts, and a dust discharge port 12 is formed in the lower portion of the ash collection bin 11. A support 13 is welded on the upper cylinder 5 so as to fixedly connect the separator with the equipment foundation. Set up gas inlet 1 along the tangential in 5 sides on upper portion barrel, 5 centers on the upper portion barrel set up gas outlet center tube 3, and 5 open-tops on the upper portion barrel are equipped with top cap 4, and gas outlet center tube 3 installs on the separator casing or on top cap 4, the medial surface fixed mounting inside lining 2 of separator casing inner wall and top cap 4. A spiral downward extending guide plate 6 is arranged in the upper barrel 5, the guide plate 6 is fixed on the lining 2, the guide plate surfaces adjacent to each other from top to bottom and the lining 2 form a spiral downward guide flow channel for guiding airflow entering from the gas inlet to flow along the guide flow channel, the included angle between the airflow direction and the horizontal plane is not more than 15 degrees, the highest point of the uppermost layer of the guide plate 6 is not lower than the upper edge of the gas inlet of the cyclone separator, and the lowest point of the lowermost layer of the bottom layer of the guide plate is not lower than the connecting line between the upper barrel 5 and the lower cone 9; as shown in fig. 2, the width of the baffle 6 is b, the diameter of the gas inlet 1 is a, and b = (0.7-1) a; the linear speed direction of any gas in the diversion flow channel and the tangential included angle at the linear speed direction are larger than 0 degree and smaller than or equal to 30 degrees.
The gas outlet central pipe 3 is detachably connected with the top cover 4 through bolts.
It should be noted that the surface of the liner 2 needs to be polished smooth before installation, but even then, the surface is not so smooth, and if the airflow flows along the liner 2, turbulence is formed, which is not favorable for dust separation. Therefore, the width of the guide plate 6 is defined in detail, so that the condition that airflow flows along the inner lining 2 to form turbulent flow due to too small width of the guide plate 6 can be avoided; in addition, the width of the guide plate 6 needs to be avoided from being too large, and the air flow can be close to the center of the separation cavity due to the too large width of the guide plate 6, so that the cyclone utilization rate and the elastic operation capacity are reduced, and the dust removal effect is reduced. The width of the guide plate 6 arranged in the utility model is proper, so that the dust removal effect can be effectively improved.
The above embodiments are only intended to illustrate the technical solution of the present invention and not to limit the same, and it should be understood by those of ordinary skill in the art that the specific embodiments of the present invention can be modified or substituted with equivalents with reference to the above embodiments, and any modifications or equivalents without departing from the spirit and scope of the present invention are within the scope of the claims to be appended.
Claims (9)
1. The utility model provides a cyclone for titanium tetrachloride removes dust, includes separator housing and receipts ash bin, and the separator housing includes upper portion barrel and lower part cone, receives the bottom opening intercommunication of ash bin and lower part cone, and the side of upper portion barrel is equipped with the gas inlet with the inside intercommunication of separator, its characterized in that: the inner wall of the separator shell is fixedly provided with a lining, a spiral downward extending guide plate is arranged in the upper cylinder to form a spiral downward guide flow channel, airflow is guided to rotate along the guide flow channel to flow downward, the included angle between the airflow direction and the horizontal plane is not more than 15 degrees, the highest point of the uppermost layer of the guide plate is not lower than the upper edge of the gas inlet of the cyclone separator, and the lowest point of the lowermost layer of the airflow is not lower than the boundary line between the upper cylinder and the lower cone; the width of the guide plate is b, the diameter of the gas inlet is a, and b = (0.7-1) a.
2. The cyclone separator for titanium tetrachloride dust removal according to claim 1, wherein: the linear velocity direction of any gas in the diversion flow channel and the tangential included angle at the linear velocity direction are larger than 0 degree and smaller than or equal to 30 degrees.
3. The cyclone separator for titanium tetrachloride dust removal according to claim 1, wherein: the guide plate is fixedly arranged on the lining.
4. The cyclone separator for titanium tetrachloride dust removal according to claim 1, wherein: the flow direction of the gas inlet is parallel to the tangential direction of the inlet of the flow guide channel.
5. The cyclone separator for titanium tetrachloride dust removal according to claim 1, wherein: the upper cylinder body is connected with the lower cone body through a flange.
6. The cyclone separator for titanium tetrachloride dust removal according to claim 1, wherein: and a lining is arranged on the inner side of the top cover at the top opening of the upper barrel.
7. The cyclone separator for titanium tetrachloride dust removal according to claim 1, wherein: the upper part of the ash collecting bin is connected with the lower cone through a flange, and the lower part of the ash collecting bin is provided with a dust outlet.
8. The cyclone separator for titanium tetrachloride dust removal as claimed in claim 7, wherein: the diameter of the cavity of the ash collecting bin is larger than the caliber of the bottom opening of the separator.
9. The cyclone separator for titanium tetrachloride dust removal according to claim 1, wherein: and a support is welded on the outer side of the upper cylinder body to fix the cyclone separator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121245665.0U CN215694890U (en) | 2021-06-04 | 2021-06-04 | Cyclone separator for titanium tetrachloride dust removal |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121245665.0U CN215694890U (en) | 2021-06-04 | 2021-06-04 | Cyclone separator for titanium tetrachloride dust removal |
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| CN215694890U true CN215694890U (en) | 2022-02-01 |
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| CN202121245665.0U Active CN215694890U (en) | 2021-06-04 | 2021-06-04 | Cyclone separator for titanium tetrachloride dust removal |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115364581A (en) * | 2022-08-19 | 2022-11-22 | 煤炭科学研究总院有限公司 | Dust remover and anchor rod machine that has it |
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2021
- 2021-06-04 CN CN202121245665.0U patent/CN215694890U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115364581A (en) * | 2022-08-19 | 2022-11-22 | 煤炭科学研究总院有限公司 | Dust remover and anchor rod machine that has it |
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