CN214131569U - Feeding device of chlorination-process titanium dioxide chlorination reaction furnace - Google Patents
Feeding device of chlorination-process titanium dioxide chlorination reaction furnace Download PDFInfo
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- CN214131569U CN214131569U CN202022620470.1U CN202022620470U CN214131569U CN 214131569 U CN214131569 U CN 214131569U CN 202022620470 U CN202022620470 U CN 202022620470U CN 214131569 U CN214131569 U CN 214131569U
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Abstract
The utility model discloses a feeding device of a chlorination reaction furnace for titanium dioxide, which belongs to the technical field of chlorination titanium dioxide production and solves the problems that the feeding method of a commonly used spiral feeder in the prior art has poor tightness, chlorine gas returns to a stock bin to corrode a screw rod, and the maintenance cost is high; the uniformity of material powder is poor, and the material containing large particles causes the blockage of a spiral feeder, causes indirect feeding and influences the product quality; the material recycle rate is low, the device includes blending tank, pans and the jetting jar that from the top down set gradually, the jetting jar is connected with the conveying pipe, the one end of conveying pipe is connected with super high pressure nitrogen pump, and the other end is connected with the import of chlorination furnace, pans and jetting jar cone department still are equipped with gaseous fluidizer, the utility model discloses sealing performance is good, and material powder homogeneity is high, and the material recycle rate is high, realizes the accurate measurement and the control of solid phase material feed volume, and device easy operation, degree of automation is high.
Description
Technical Field
The utility model relates to a technical field of chlorination process titanium white powder production, concretely relates to chlorination process titanium white powder chlorination reaction furnace feed arrangement.
Background
The chlorination furnace is important equipment in the production process of titanium dioxide by a chlorination method. In a chlorination furnace, high titanium slag, rutile, petroleum coke and chlorine react to generate titanium tetrachloride. The high titanium slag, rutile and petroleum coke entering the chlorination furnace are solid, and a screw feeder is adopted in conventional feeding. The device has the following problems that the chlorine gas returns to the storage bin to corrode the screw rod due to poor sealing performance of the device, and the maintenance cost is high; the uniformity of material powder is poor, and the material containing large particles causes the blockage of a spiral feeder, indirect feeding, raw material waste and influence on the product quality; the material recovery rate is low, which causes material waste and affects product quality.
Disclosure of Invention
Aiming at the problems existing in the prior art: the sealing performance of the device is poor; the materials are mixed unevenly, and large-particle materials exist; the problem that material recycle rate is low, the utility model provides a chlorination process titanium white powder chlorination reaction furnace feed arrangement, its aim at: the sealing performance of the device is improved, the corrosion of the screw rod is avoided, and the maintenance cost is reduced; the uniformity of the material powder is improved, the material is uniformly transported, the raw material is saved, and the product quality is improved; the recycling rate of the materials is improved, the material waste is reduced, and the product quality is improved.
The utility model adopts the technical scheme as follows:
a feeding device of a chlorination reaction furnace for titanium dioxide by a chlorination method is characterized by comprising a mixing tank, an intermediate tank and a blowing tank which are sequentially arranged from top to bottom; the mixing tank, the intermediate tank and the blowing tank are all inverted cones; the bottom of the mixing tank is connected with the top of the intermediate tank; the bottom of the intermediate tank is connected with the top of the injection tank; the blowing tank is connected with a feeding pipe; one end of the feeding pipe is connected with an ultrahigh pressure nitrogen pump, and the other end of the feeding pipe is connected with an inlet of a chlorination furnace; a first gas fluidizing device is arranged at the cone of the intermediate tank, a second gas fluidizing device is arranged at the cone of the injection tank, and the materials in the intermediate tank and the injection tank are injected by providing fluidizing gas into the gas fluidizing devices, so that the materials are ensured to be in a fluidized state; the device is characterized in that a blowing-assisting pipeline is connected onto the feeding pipe, the blowing-assisting pipeline is connected with an ultrahigh pressure nitrogen pump, a valve VI is arranged on the feeding pipe, and a valve VII is arranged on the blowing-assisting pipeline.
Furthermore, the valve VI, the valve VII and the valve VIII are all adjustable ball valves
Further, the first gas fluidizing device and the second gas fluidizing device are both connected with a high-pressure nitrogen source, and the pressure of the high-pressure nitrogen source is 3-5 bar higher than the atmospheric pressure.
Furthermore, the pressure of an ultrahigh-pressure nitrogen pump connected with the feeding pipe and the blowing-assisting pipeline is 5-10 bar higher than the pressure in the pipeline.
Further, all the connecting members refer to conventional fixing members such as screws, nuts, screws, washers, and pipes.
Preferably: be provided with filter equipment on the conveying pipe, filter equipment is a filter screen that the aperture is 8 ~ 10mm, the hole interval is 2 ~ 5mm, the filter equipment below is provided with retrieves the box, filters, retrieves, recycles the large granule material that gets into the chlorination furnace, has promoted product quality, has reduced the material waste.
Preferably: the blowing tank is provided with a weighing sensor, the weighing sensor comprises three modules, and the three modules are located on the same horizontal plane and used for monitoring the material quantity in the blowing tank.
Preferably: and a bag type dust collector is arranged at the top end of the mixing tank, so that dust pollution caused by emission is reduced.
Preferably: the intermediate tank is provided with a first pressure sensor, the injection tank is provided with a second pressure sensor for measuring the internal pressure of the intermediate tank and the injection tank.
Preferably: the end of the intermediate tank cone is provided with a first activating device, the end of the blowing tank cone is provided with a second activating device, the first activating device and the second activating device respectively comprise a stirring blade and a motor for driving the stirring blade, the motor drives the stirring blade to rotate, materials in the intermediate tank and the blowing tank are further crushed, the fact that the material powder does not contain large-particle materials is guaranteed, and the product quality is guaranteed.
Preferably: be provided with pressure balance pipe between pans and the jetting jar, pressure balance pipe is provided with valve III, the lumen of balance pipe and pans and the inner chamber of jetting jar link up, when the gas pressure in the jetting jar was too high, opened valve III, the pressure of balance pans and jetting jar, the unloading of being convenient for.
Preferably: all be provided with the pressure release pipe between blending tank and pans, the jetting jar, be provided with valve II and valve IV on the pressure release pipe, when the material reaches lower limit or upper limit in the jetting jar, adjust and control the gas pressure in pans and the jetting jar through the pressure release pipe, reach the purpose of the accurate unloading of control.
Preferably: the intermediate tank upper portion is provided with first nitrogen gas valve, jetting jar upper portion is provided with the second nitrogen gas valve, first nitrogen gas valve and second nitrogen gas valve are connected with the low pressure nitrogen gas source, guarantee that intermediate tank atmospheric pressure is a little higher than jetting jar atmospheric pressure.
Further, the pressure of the low-pressure nitrogen source is 1-2 bar higher than the atmospheric pressure.
Preferably: the device is characterized in that a valve I is arranged on a mixing tank and a middle tank connecting pipeline, a valve V is arranged on the middle tank and a blowing tank connecting pipeline, a valve VIII is arranged below the blowing tank, a material metering device is arranged below the valve VIII, and the valve I, the valve V and the valve VIII are adjustable discharge ball valves for regulating and controlling the discharge amount.
To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:
1. the device has good sealing performance, avoids the problem that the chlorine gas returns the bin to corrode the screw rod in the spiral feeder, and reduces the maintenance cost.
2. The gas fluidizing device and the activating device break up and smash the material twice, avoid large granule material to cause the dead problem of card of spiral feeder, improve material powder homogeneity, make the even transportation of material, save raw materials promotes product quality.
3. Filter equipment recycles the recovery of large granule material with retrieving the box, has reduced the material extravagant, has promoted product quality.
4. The valve VIII with adjustable opening degree arranged below the injection tank and the material metering meter arranged on the feeding pipe can realize accurate metering and control of solid-phase material feeding amount.
5. The device is simple to operate and high in automation degree.
Drawings
The invention will now be described, by way of example, with reference to the accompanying drawings, in which:
FIG. 1 is a schematic view of the device of the present invention
1-a bag type dust collector; 2-mixing tank; 3-a tundish; 4-a first gas fluidisation apparatus; 5-blowing tank; 6-a second gas fluidisation arrangement; 7-a weighing sensor; 8-a first nitrogen valve; 9-a first pressure sensor; 10-a first activation device; 11-a second activation device; 12-a second pressure sensor; 13-a second activation device; 14-a material meter; 15-a filtration device; 16-a recovery box; 17-a blowing-assisted pipeline; 18-a feeding tube; a valve-I; valve-II; valve-III; valve-IV; valve-V; a valve-VI; valve-VII; valve-VIII.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all the embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present application without making any creative effort, shall fall within the protection scope of the present application.
In the description of the embodiments of the present application, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are usually placed in when used, and are only used for convenience of description and simplification of the description, but do not indicate or imply that the devices or elements indicated must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
The present invention will be described in detail below with reference to fig. 1.
A feeding device of a chlorination reaction furnace for titanium dioxide by a chlorination method is characterized by comprising a mixing tank 2, an intermediate tank 3 and a blowing tank 5 which are sequentially arranged from top to bottom; the mixing tank 2, the intermediate tank 3 and the blowing tank 5 are all inverted cones; the bottom of the mixing tank 2 is connected with the top of the intermediate tank 3; the bottom of the intermediate tank 3 is connected with the top of the blowing tank 5; the blowing tank 5 is connected with a feeding pipe 18; one end of the feeding pipe 18 is connected with an ultrahigh pressure nitrogen pump, and the other end of the feeding pipe is connected with an inlet of a chlorination furnace; a first gas fluidizing device 4 is arranged at the cone of the intermediate tank 3, and a second gas fluidizing device 6 is arranged at the cone of the injection tank 5; the blowing assisting device is characterized in that a blowing assisting pipeline 17 is connected to the feeding pipe 18, the blowing assisting pipeline 17 is connected with an ultrahigh pressure nitrogen pump, a valve VI is arranged on the feeding pipe 18, and a valve VII is arranged on the blowing assisting pipeline 17.
In this embodiment, first gas fluidizing device 4 and second gas fluidizing device 6 all are connected with the high-pressure nitrogen gas source, spout the material of 5 in the pans 3 and the jetting jar through providing high-pressure nitrogen gas to in first gas fluidizing device 4 and the second gas fluidizing device 6, guarantee that the material is in the fluidization state, and when spouting the material for preventing to get into the pans 3 and the gas pressure in the jetting jar 5 too big, should be under the prerequisite of guaranteeing the material fluidization, reduce the gas quantity that lets in nitrogen gas as far as.
Further: and the pressure of the high-pressure nitrogen source is 3-5 bar higher than that of the atmospheric pressure.
In this embodiment, be provided with filter equipment 15 on the conveying pipe 18, filter equipment is a aperture and is 8 ~ 10mm, the filter screen that the hole interval is 2 ~ 5mm, filter equipment 15 below is provided with retrieves box 16, and large granule material diameter is generally more than 10mm in the material, and the in-process of conveying pipe pay-off, large granule material is blockked by the filter screen, later because gravity falls into in retrieving box 16, but the large granule material reuse in retrieving box 16 promotes the recycle rate of material and the quality of product.
Furthermore, the pressure of an ultrahigh-pressure nitrogen pump connected with the feeding pipe and the blowing-assisting pipeline is 5-10 bar higher than the pressure in the pipeline.
In this embodiment, be provided with weighing sensor 7 on the jetting jar 5, weighing sensor 7 includes three module, three module is located same horizontal plane for the material volume in the monitoring jetting jar 3.
In this embodiment, the top end of the mixing tank 2 is provided with a bag type dust collector 1, the dust collector is connected with the atmosphere and the mixing tank 2 through a pipeline, when the intermediate tank 3 and the blowing tank 5 are depressurized, the pressure in the mixing tank 2 is higher than the atmospheric pressure, the gas in the mixing tank 2 is discharged to the atmosphere through the bag type dust collector 1, and the bag type dust collector 1 separates and blocks dust in the discharge, thereby reducing environmental pollution.
In the present embodiment, the intermediate tank 3 is provided with a first pressure sensor 9, and the blowing tank 5 is provided with a second pressure sensor 12.
In this embodiment, 3 cone ends of pans are provided with first activation device 10, 5 cone ends of jetting jar are provided with second activation device 13, first activation device and second activation device all include stirring vane and drive stirring vane's motor, drive the stirring vane rotation through the motor, further smash the material in pans and the jetting jar, guarantee that the material powder does not contain the large granule material, guarantee product quality.
Further, the stirring blades are linear blades.
In this embodiment, a pressure balance pipe is provided between the intermediate tank 3 and the injection tank 5, the pressure balance pipe is provided with a valve iii, and a lumen of the pressure balance pipe is communicated with the inner lumens of the intermediate tank 3 and the injection tank 5.
In this embodiment, pressure relief pipes are arranged between the mixing tank 2 and the intermediate tank 3 and between the spraying and blowing tank 5, and a valve ii and a valve iv are arranged on the pressure relief pipes.
In this embodiment, a first nitrogen valve 8 is arranged on the upper part of the intermediate tank 3, a second nitrogen valve 11 is arranged on the upper part of the blowing tank 5, and the first nitrogen valve 8 and the second nitrogen valve 11 are connected with a low-pressure nitrogen source.
Further: the pressure of the low-pressure nitrogen source is 1-2 bar higher than the atmospheric pressure.
In the embodiment, a connecting pipeline of the mixing tank 2 and the intermediate tank 3 is provided with a valve I, a connecting pipeline of the intermediate tank 3 and the blowing tank 7 is provided with a valve V, a valve VIII is arranged below the blowing tank 5, a material meter 14 is arranged below the valve VIII, when the device works, the material meter 14 monitors the material amount in the feeding pipe 18, and when the measured material amount is too low, the opening degree of the valves VIII and VI is increased, and the valve VII is opened; and when the measured material amount is too high, reducing the opening degree of the valve VIII and the valve VI, and closing the valve VII.
Further, all the connecting members refer to conventional fixing members such as screws, nuts, screws, washers, and pipes
Further, a first gas fluidizing device 4, a second gas fluidizing device 6, a first pressure sensor 9, a second pressure sensor 12, a weighing sensor 7, a first activating device 10, a second activating device 13, a material metering device 14, a valve-I, a valve-V, a valve-VI, a valve-VII and a valve-VIII are connected with a PLC controller.
The specific operation method is as follows:
the method comprises the following steps: charging of
Opening a valve I and a valve II, closing a valve III, a valve IV, a valve V, a valve VI, a valve VII and a valve VIII; at this moment, the pressure of the mixing tank is the same as that of the intermediate tank, and the mixed raw materials in the mixing tank enter the intermediate tank through the pipeline I of the valve under the action of gravity.
Secondly, the step of: feeding material
Opening a valve III, a valve V, a valve VIII and a valve VI, and closing a valve I, a valve II, a valve IV and a valve VII; after being fluidized by a first gas fluidizing device 4 and a first activating device 10, the mixed raw materials in the intermediate tank 3 enter a blowing tank 5 through a pipeline of a valve V, and after being fluidized by a second gas fluidizing device 6 and a second activating device 13, the mixed raw materials in the blowing tank 5 enter a feeding pipe 18 through a pipeline of a valve VIII; the mixed feed in feed tube 18 is carried by high pressure nitrogen into the chlorination furnace.
③: it should be noted that
When the raw materials in the injection tank 5 reach the lowest limit, opening the valve I, the valve III, the valve V and the valve IV, closing the valve II, the valve VIII, the valve VI and the valve VIII, and allowing the raw materials to enter the injection tank 5 from the intermediate tank 3 under the action of gravity;
when the raw material in the blowing tank 5 reaches the highest limit, opening the valve IV, the valve VIII and the valve VII, closing the valve III, the valve V, the valve I and the valve II, stopping the continuous feeding of the intermediate tank 3 until the material in the blowing tank 5 reaches the normal value, and repeating the working conditions (i)
Wherein, the material meter 14 is used for measuring the solid flow entering the chlorination furnace, the opening degree of the valve VI is controlled by the material meter, when the display value of the material flow meter is lower than the normal value, the opening degree of the valve VI is enlarged, the valve VII is opened, so that the nitrogen flow entering the feeding pipe 18 is increased, and more solid materials are driven to enter the chlorination furnace
When the display value of the material meter is higher than the normal value, the opening degree of the valve VI is reduced, and the valve VII is closed, so that the nitrogen flow entering the feeding pipe 18 is reduced, and less solid materials are driven to enter the chlorination furnace; the material meter 14 is primarily used to observe the nitrogen flow into the feed tube 18.
The above-mentioned embodiments only express the specific embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for those skilled in the art, without departing from the technical idea of the present application, several changes and modifications can be made, which are all within the protection scope of the present application.
Claims (10)
1. A feeding device of a chlorination reaction furnace for titanium dioxide by a chlorination method is characterized by comprising a mixing tank (2), an intermediate tank (3) and a blowing tank (5) which are sequentially arranged from top to bottom; the mixing tank (2), the intermediate tank (3) and the blowing tank (5) are all inverted cones; the bottom of the mixing tank (2) is connected with the top of the intermediate tank (3); the bottom of the intermediate tank (3) is connected with the top of the blowing tank (5); the blowing tank (5) is connected with a feeding pipe (18); one end of the feeding pipe (18) is connected with an ultrahigh pressure nitrogen pump, and the other end of the feeding pipe is connected with an inlet of a chlorination furnace; a first gas fluidizing device (4) is arranged at the cone of the intermediate tank (3), and a second gas fluidizing device (6) is arranged at the cone of the blowing tank (5); the device is characterized in that a blowing-assisting pipeline (17) is connected onto the feeding pipe (18), the blowing-assisting pipeline (17) is connected with an ultrahigh pressure nitrogen pump, a valve VI is arranged on the feeding pipe (18), and a valve VII is arranged on the blowing-assisting pipeline (17).
2. The feeding device of the chlorination reaction furnace for titanium dioxide according to claim 1, wherein the feeding pipe (18) is provided with a filtering device (15), and a recovery box (16) is arranged below the filtering device.
3. The chlorination titanium dioxide chlorination reactor feeding device according to claim 1, wherein the blowing tank (5) is provided with a weighing sensor (7).
4. The feeding device of the chlorination reaction furnace for titanium dioxide according to claim 1, wherein a bag type dust collector (1) is arranged at the top end of the mixing tank (2).
5. The feeding device of the chlorination titanium dioxide chlorination reaction furnace according to claim 1, wherein the intermediate tank (3) is provided with a first pressure sensor (9), and the injection tank (5) is provided with a second pressure sensor (12).
6. The feeding device of the chlorination titanium dioxide chlorination reaction furnace according to claim 1, wherein a first activation device (10) is arranged at the cone end of the intermediate tank (3), and a second activation device (13) is arranged at the cone end of the injection tank (5).
7. The feeding device of the chlorination titanium dioxide chlorination reaction furnace according to claim 1, wherein a pressure balance pipe is arranged between the intermediate tank (3) and the injection tank (5), the pressure balance pipe is provided with a valve III, and a pipe cavity of the pressure balance pipe is communicated with inner cavities of the intermediate tank (3) and the injection tank (5).
8. The feeding device of the chlorination reaction furnace for titanium dioxide chlorination according to claim 1, wherein pressure relief pipes are arranged among the mixing tank (2), the intermediate tank (3) and the blowing tank (5), and are provided with a valve II and a valve IV.
9. The feeding device of the chlorination titanium dioxide chlorination reaction furnace according to claim 1, wherein a first nitrogen valve (8) is arranged at the upper part of the intermediate tank (3), a second nitrogen valve (11) is arranged at the upper part of the injection tank (5), and the first nitrogen valve (8) and the second nitrogen valve (11) are connected with a low-pressure nitrogen source.
10. The feeding device of the chlorination reaction furnace for titanium dioxide chlorination according to claim 1, wherein a valve I is arranged on a connecting pipeline between the mixing tank (2) and the intermediate tank (3), a valve V is arranged on a connecting pipeline between the intermediate tank (3) and the injection tank (5), a valve VIII is arranged below the injection tank (5), and a material meter (14) is arranged below the valve VIII.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022620470.1U CN214131569U (en) | 2020-11-13 | 2020-11-13 | Feeding device of chlorination-process titanium dioxide chlorination reaction furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022620470.1U CN214131569U (en) | 2020-11-13 | 2020-11-13 | Feeding device of chlorination-process titanium dioxide chlorination reaction furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214131569U true CN214131569U (en) | 2021-09-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022620470.1U Active CN214131569U (en) | 2020-11-13 | 2020-11-13 | Feeding device of chlorination-process titanium dioxide chlorination reaction furnace |
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| CN (1) | CN214131569U (en) |
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- 2020-11-13 CN CN202022620470.1U patent/CN214131569U/en active Active
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| Date | Code | Title | Description |
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| CP03 | Change of name, title or address |
Address after: 651200 Yang Jie, Qinfeng Town, Lufeng City, Chuxiong Yi Autonomous Prefecture, Yunnan Province Patentee after: Longbai Lufeng Titanium Industry Co.,Ltd. Address before: 651200 Yangjie, Qinfeng Town, Lufeng County, Chuxiong Yi Autonomous Prefecture, Yunnan Province Patentee before: LUFENG XINLI TITANIUM INDUSTRY CO.,LTD. |
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