Automatic quick lime feeding device used in titanium tetrachloride production process

Abstract

The utility model discloses an automatic quick lime feeding device used in the titanium tetrachloride production process, which relates to the technical field of chemical production and comprises a quick lime storage tank and a manual valve, the manual valve is arranged below the quick lime storage tank, a pipe screw conveyor is connected below the manual valve, and the pipe screw conveyor is connected with the quick lime storage tank. And a metering tank is connected below one end, far away from the manual valve, of the pipe screw conveyor. According to the automatic quick lime feeding device used in the titanium tetrachloride production process, the pipe screw conveyor, the metering tank, the pneumatic valve, the stirring tank and an external central control system are adjusted and controlled through electric signal transmission, so that cooperative operation of all the structures is utilized; the defects that the feeding speed and the feeding amount cannot be accurately controlled and adjusted according to process parameters due to the fact that the feeding speed and the feeding amount are subjected to field inspection and manual operation by operators at present are overcome, the labor intensity of workers is reduced, and meanwhile the working environment of the workers is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a technical field of chemical production, concretely is a quicklime automatic feeding device for titanium tetrachloride production process. BACKGROUND

[0002] Titanium tetrachloride is an important intermediate raw material for producing titanium sponge and its alloy, at present, its production process includes boiling chlorination (fluidized chlorination), molten salt chlorination etc., mainly taking chlorine gas as gas phase, the mixture of titanium slag and petroleum coke as solid phase, reaction in gas-solid two phases to obtain titanium tetrachloride, then further purification is carried out to obtain refined titanium tetrachloride. Acidic slag-containing wastewater is generated in the production process, and the neutralization reaction is carried out with alkaline lime water to reduce the pollution to the environment.

[0003] From the current point of view, the main problem is that the feeding speed and feeding amount are not accurate. Because the quicklime is transported to the use place by ton bag, the manual feeding is adjusted and controlled by the quantity process of adding ton bag quicklime, cannot be adjusted according to the actual demand, and it is difficult to guarantee the accuracy of the feeding speed and feeding amount, causing the instability of reaction rate, and affecting the neutralization effect.

[0004] Therefore, in view of the above, the existing structure and defects are improved, and a quicklime automatic feeding device for titanium tetrachloride production process is provided. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a quicklime automatic feeding device for titanium tetrachloride production process to solve the problems in the above background technology.

[0006] In order to achieve the above object, the utility model provides the following technical scheme: a quicklime automatic feeding device for titanium tetrachloride production process, including quicklime storage tank and manual valve, the lower part of quicklime storage tank is equipped with manual valve, and the lower part of manual valve is connected with pipe screw conveyor, and the lower part of the end of pipe screw conveyor away from manual valve is connected with metering tank, and the bottom side of metering tank is connected and installed with pneumatic valve, and the lower part of the end of pneumatic valve away from metering tank is equipped with stirring tank.

[0007] Further, the quicklime storage tank and the manual valve are flange connected, and the manual valve and the pipe screw conveyor are flange connected.

[0008] Further, the quicklime storage tank includes moisture-proof storage tank, feed valve pipe and heat preservation plate, the upper end of the side of moisture-proof storage tank is horizontally installed with feed valve pipe, and the outer surface of moisture-proof storage tank is attached with heat preservation plate.

[0009] Further, the feed valve pipe and the moisture-proof storage tank are connected by flanges, and the heat insulation plates are arranged in a ring array around the moisture-proof storage tank and movably connected with the moisture-proof storage tank.

[0010] Further, the metering tank can be made with a corresponding volume according to actual production needs, and the metering tank and the pneumatic valve are connected by flanges.

[0011] Further, the pneumatic valve and the stirring tank are connected by flanges, the surface of the metering tank is provided with a transparent window structure for intuitive observation of the charging process of the quicklime, and the pipe screw conveyor is connected with the central control system through the transmission of electrical signals and accurately controls the rotating speed of the pipe screw conveyor, so that the actual feeding speed matches the process requirement feeding speed, and the metering tank is connected with the central control system through the transmission and feedback of electrical signals and accurately displays the mass of the quicklime in the metering tank, and the total amount of feeding is controlled according to the process setting parameters.

[0012] Further, the stirring tank comprises a main tank body, a feeding valve port and a discharge hose, the main tank body is provided with the feeding valve port at the top, and the main tank body is provided with the discharge hose at one side of the lower end.

[0013] Further, the feeding valve port is arranged in a ring array around the main tank body and is provided with three groups, and the discharge hose is connected with the main tank body through a quick connector structure.

[0014] The utility model provides a kind of quicklime automatic feeding device in titanium tetrachloride production process, with following beneficial effects:

[0015] 1, the utility model, wherein pipe screw conveyor can satisfy various strict process flow needs, flow can be in 0~100% range infinitely adjustable, in combination with the central control system connected therewith, can be flexibly adjusted according to operation efficiency, and the central control system is electrically connected with metering tank, in combination with transparent window structure being provided on its surface, so that the charging process of quicklime can be intuitively observed, in combination with central control system through the transmission and feedback of electrical signals, the mass of quicklime in metering tank can be accurately displayed, and total amount of feeding is controlled according to process setting parameters, in combination with the cooperation of the above structure, feeding speed and feeding amount can be accurately adjusted and controlled according to production process, neutralization reaction rate is more stable, and neutralization effect can be improved, so as to guarantee the efficiency and accuracy of operation.

[0016] 2. In this utility model, the tubular screw conveyor, metering tank, pneumatic valve, and mixing tank are all controlled and cooperate with each other through an external central control system, thereby achieving as much automation as possible. By replacing manual operation with automation, the labor intensity of workers can be reduced, and errors caused by manual adjustment can be avoided, thus ensuring the accuracy and convenience of material addition. At the same time, the entire device can be set up indoors to avoid the aging effects of the equipment in the external environment, and the central control system can be set up inside for remote operation, thereby improving the working environment of the operators and, to a certain extent, also playing a role in protecting the safety of the operators.

[0017] 3. This utility model, by installing an insulation board on the outer surface of the moisture-proof storage tank, effectively prevents quicklime from deteriorating due to moisture during storage by utilizing the structural characteristics of the moisture-proof storage tank and the insulation board. It also avoids the adverse effects of low temperature on quicklime in low-temperature environments. By installing three sets of feeding valves on the top of the main tank, external auxiliary material supply equipment can be connected to it, thereby enabling the quantitative addition of auxiliary materials at any time during the stirring and processing of quicklime in the main tank, ensuring the efficiency of subsequent processing operations, and also ensuring the quality of quicklime preparation in the titanium tetrachloride processing process. Attached Figure Description

[0018] Figure 1 This is a side-view structural diagram of the main body of an automatic quicklime feeding device used in the titanium tetrachloride production process according to the present invention.

[0019] Figure 2 This is a schematic diagram of the quicklime storage tank structure of an automatic quicklime feeding device used in the titanium tetrachloride production process according to this utility model.

[0020] Figure 3 This is a three-dimensional structural diagram of a tubular screw conveyor, metering tank, and pneumatic valve for an automatic quicklime feeding device used in the titanium tetrachloride production process according to this utility model.

[0021] Figure 4 This is a three-dimensional structural diagram of a mixing tank for an automatic quicklime feeding device used in the production process of titanium tetrachloride, according to this utility model.

[0022] In the diagram: 1. Quicklime storage tank; 101. Moisture-proof storage tank; 102. Feed valve pipe; 103. Insulation board; 2. Manual valve; 3. Tube screw conveyor; 4. Metering tank; 5. Pneumatic valve; 6. Mixing tank; 601. Main tank body; 602. Feeding valve port; 603. Discharge hose. Detailed Implementation

[0023] The embodiments of the present application will be further described in conjunction with the drawings and examples. The following examples are used to illustrate the present application, but cannot be used to limit the scope of the present application.

[0024] As Figures 1 to 4 shown, an automatic feeding device for quicklime in titanium tetrachloride production process, including quicklime storage tank 1 and manual valve 2, the lower part of quicklime storage tank 1 is provided with manual valve 2, and the lower part of manual valve 2 is connected with pipe screw conveyor 3, and the lower part of the end of pipe screw conveyor 3 away from manual valve 2 is connected with metering tank 4, and the bottom side of metering tank 4 is connected and installed with pneumatic valve 5, and the lower part of the end of pneumatic valve 5 away from metering tank 4 is provided with stirring tank 6, quicklime storage tank 1 and manual valve 2 are flange connected, and manual valve 2 and pipe screw conveyor 3 are flange connected, metering tank 4 can be made according to actual production needs The corresponding volume, and metering tank 4 and pneumatic valve 5 are flange connected, and pneumatic valve 5 and stirring tank 6 are flange connected, the surface of metering tank 4 is provided with transparent window structure for directly observing the filling process of quicklime, and pipe screw conveyor 3 is connected with central control system through the transmission of electric signal and accurately controls the rotating speed of pipe screw conveyor 3, so that the actual material speed is consistent with the process requirement material speed, and metering tank 4 is connected with central control system through the transmission and feedback of electric signal and accurately displays the mass of quicklime in metering tank 4, and controls the total amount of feeding according to the process setting parameters, wherein pipe screw conveyor 3 can meet the needs of various strict process flow, and is used in combination with the central control system connected therewith, can make flexible adjustment to the operation efficiency according to the operation needs, and the central control system connected with metering tank 4 is electrically connected, and the transparent window structure provided on the surface thereof enables to directly observe the filling process of quicklime, and the central control system can accurately display the mass of quicklime in metering tank 4 through the transmission and feedback of electric signal.

[0025] As Figures 1 to 4As shown, the quicklime storage tank 1 includes a moisture-proof storage tank 101, a feed valve pipe 102, and an insulation board 103. The feed valve pipe 102 is horizontally installed on the upper side of the moisture-proof storage tank 101, and the outer surface of the moisture-proof storage tank 101 is covered with an insulation board 103. The feed valve pipe 102 and the moisture-proof storage tank 101 are connected by a flange, and the insulation board 103 is arranged in a circular array around the moisture-proof storage tank 101 and is movably connected to the moisture-proof storage tank 101. The mixing tank 6 includes a main tank body 601, a feed valve port 602, and a discharge hose 603. The feed valve port 602 is installed on the top of the main tank body 601, and the main tank... A discharge hose 603 is installed on one side of the lower end of the main tank 601. Three sets of feeding valve ports 602 are arranged in a circular array with the main tank 601 as the center. The discharge hose 603 is connected to the main tank 601 through a quick-connect structure. By setting an insulation board 103 on the outer surface of the moisture-proof storage tank 101, the structural characteristics of the moisture-proof storage tank 101 and the insulation board 103 can effectively prevent the quicklime from deteriorating due to moisture during storage. By setting three sets of feeding valve ports 602 on the top of the main tank 601, the required auxiliary materials can be added to the inside of the main tank 601 in real time.

[0026] In summary, as Figures 1 to 4 As shown, the automatic quicklime feeding device used in the titanium tetrachloride production process can first be injected into the moisture-proof storage tank 101, which is covered with a heat insulation board 103, through the feed valve pipe 102 at the top to facilitate subsequent control and conveying. Then, the operator can start the entire feeding device after setting the control system according to the feeding speed and feeding amount specified by the process parameters in the remote control room. During this period, the manual valve 2 connected to the bottom of the quicklime storage tank 1 can be opened in advance.

[0027] At this time, the central control system transmits an opening signal, and the quicklime inside will enter the tube screw conveyor 3 after passing through the manual valve 2. As the tube screw conveyor 3 is opened, the quicklime inside will gradually be filled into the metering tank 4 at one end. Utilizing the structural characteristics of the metering tank 4, the quicklime injected into it is weighed and the pressure change value can be measured. The pressure change value signal is transmitted to the central control system. The system can calculate the mass of quicklime in the metering tank 4 based on the pressure change value.

[0028] When the mass of the quicklime in the metering tank 4 reaches the upper limit of metering of the metering tank 4, the pipe screw conveyor 3 is closed simultaneously, and the feeding to the metering tank 4 is stopped, at the same time, the pneumatic valve 5 connected to the lower end of the metering tank 4 is opened, the central control system transmits the corresponding opening signal to the pneumatic valve 5 according to the set flow rate, and the pneumatic valve 5 is opened according to the opening signal, when the material speed is greater than the set value, the system will reduce the opening, the opening of the pneumatic valve 5 is reduced, the material speed is reduced, and when the material speed is less than the set value, the system will increase the opening of the pneumatic valve 5, the opening of the pneumatic valve 5 is increased, and the material speed is increased, so that the automatic control and adjustment of the material speed are realized.

[0029] With the control and adjustment of the pneumatic valve 5, the quicklime in the metering tank 4 is injected into the inside of the stirring tank 6, and the quicklime is stirred under the operation, at the same time, the auxiliary materials required for the processing of the quicklime can be synchronously quantitatively fed in real time by using the feeding valve port 602 arranged at the top of the main tank body 601, when the mass of the quicklime in one metering tank 4 reaches the lower limit of metering, the pneumatic valve 5 below the metering tank 4 is closed, then the pipe screw conveyor 3 is started again, and the quicklime is filled into the metering tank 4. The process is repeated, and the automatic feeding and the automatic control of the feeding amount are realized.

[0030] The embodiments of the present application are given for the purpose of example and description, and are not exhaustive or limit the present application to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present application, and to enable those skilled in the art to understand the present application so as to design various embodiments with various modifications suitable for specific purposes.

Claims

1. A quicklime automatic feeding device for use in a titanium tetrachloride production process, comprising a quicklime storage tank (1) and a manual valve (2), characterized in that: The lower side of the quicklime storage tank (1) is provided with a manual valve (2), and the lower side of the manual valve (2) is connected with a pipe screw conveyor (3), and the end of the pipe screw conveyor (3) away from the manual valve (2) is connected with a metering tank (4), and the bottom side of the metering tank (4) is connected with a pneumatic valve (5), and the lower side of the end of the pneumatic valve (5) away from the metering tank (4) is provided with a stirring tank (6), the quicklime storage tank (1) comprises a moisture-proof storage tank (101), a feeding valve pipe (102) and a heat preservation plate (103), the upper end of the side of the moisture-proof storage tank (101) is horizontally provided with the feeding valve pipe (102), and the outer surface of the moisture-proof storage tank (101) is attached with the heat preservation plate (103), the feeding valve pipe (102) and the moisture-proof storage tank (101) are flange-connected, and the heat preservation plate (103) is arranged in a ring array around the moisture-proof storage tank (101) and is movably connected with the moisture-proof storage tank (101), the metering tank (4) can be made with a corresponding volume according to actual production needs, and the metering tank (4) and the pneumatic valve (5) are flange-connected, the pneumatic valve (5) and the stirring tank (6) are flange-connected, the surface of the metering tank (4) is provided with a transparent window structure for directly observing the filling process of the quicklime, and the pipe screw conveyor (3) is connected with a central control system through the transmission of electrical signals and accurately controls the rotating speed of the pipe screw conveyor (3), so that the actual material speed is consistent with the process requirement material speed, and the metering tank (4) is connected with the central control system through the transmission and feedback of electrical signals and accurately displays the mass of the quicklime in the metering tank (4), and the total amount of feeding is controlled according to the process setting parameters.

2. The automatic quicklime feeding device for use in the production of titanium tetrachloride according to claim 1, characterized in that, The quicklime storage tank (1) and the manual valve (2) are flange-connected, and the manual valve (2) and the pipe screw conveyor (3) are flange-connected.

3. The automatic quicklime feeding device for titanium tetrachloride production process according to claim 1, characterized in that, The stirring tank (6) comprises a main tank body (601), a feeding valve port (602) and a discharge hose (603), the top of the main tank body (601) is provided with the feeding valve port (602), and the lower end of the main tank body (601) is provided with the discharge hose (603).

4. The automatic quicklime feeding device for use in the production of titanium tetrachloride according to claim 3, characterized in that, The feeding valve port (602) is arranged in a ring array around the main tank body (601) and is provided with three groups, and the discharge hose (603) is connected with the main tank body (601) through a quick connector structure.

Images