Novel multi-point uniform continuous feeding device for titanium sponge production and control method

Abstract

The invention relates to the technical field of titanium sponge production equipment, in particular to a novel multi-point uniform and continuous feeding device for titanium sponge production and a control method. The novel multi-point uniform and continuous feeding device comprises a large cover and a feeding compensator, and the feeding compensator is composed of a compensator storage tank and a compensator support; a compensator support is divided into a long-end support connecting rod and a short-end support connecting rod. A feeding hole is formed in the upper portion of a material storage tank through a compensator, and the exterior of the feeding hole is connected with a titanium tetrachloride conveying pipe. A liquid level observation hole is formed in the material storage tank through the compensator, a discharging opening is formed in the bottom of the material storage tank through the compensator, and a discharging header pipe is connected to the outer portion of the discharging opening. According to the novel multi-point uniform and continuous feeding device for titanium sponge production and the control method, the titanium tetrachloride feeding compensator mounting frame can be conveniently disassembled and assembled in different use stages of a reactor through the design of the titanium tetrachloride feeding compensator mounting frame, the titanium tetrachloride feeding compensator mounting frame is matched with a lifting lug of a large cover of the reactor, use of the support is simplified, and the overall structure is optimized.

Description

Technical Field

[0001] The invention relates to the technical field of titanium sponge production equipment, and in particular to a novel multi-point uniform and continuous feeding device and a control method for titanium sponge production. Background Art

[0002] In the production process of titanium sponge, reduction distillation is a key link, and the inverted U-shaped furnace and I-shaped furnace production process are usually adopted. As the core equipment in this process, the reactor’s large cover not only plays an important role in sealing, but also carries out reduction reaction with Mg in the furnace by passing liquid titanium tetrachloride during the reduction stage. However, there are many challenges in this reaction process. As the temperature rises, titanium tetrachloride vaporizes rapidly, causing the pressure in the furnace to increase sharply. The stability and patency of the titanium tetrachloride feed must be ensured by precisely adjusting the pressure in the reactor. At the same time, the reaction is an exothermic reaction. In order to avoid excessive pressure in the furnace, it is often necessary to reduce the feeding rate of titanium tetrachloride, but this will slow down the overall reaction rate, thereby affecting production efficiency.

[0003] The feeding methods in the prior art are mostly single-point feeding or simple multi-point feeding, and usually a large titanium tetrachloride storage tank feeds multiple reduction furnaces at the same time. This method is prone to feed fluctuations and feeding amount deviations. Once the feeding pipe is blocked, it is necessary to reduce the feed rate or stop the feed for unblocking. If it is not handled for a long time, it may also cause serious blockage and the feeding pipe needs to be replaced, which not only affects production efficiency, but also may make the reactor liquid level difficult to control and the large cover temperature overheat, thereby affecting product quality.

[0004] Therefore, in view of the problems existing in the prior art, it is particularly urgent and important to provide a method and device for uniformly feeding sponge titanium with a simple structure, convenient installation and use, low manufacturing cost, stable feeding, and convenient abnormal handling. Summary of the invention

[0005] The purpose of the present invention is to provide a new multi-point uniform continuous feeding device and control method for titanium sponge production, so as to solve the problem that the feeding method in the prior art mentioned in the above background technology is mostly single-point feeding or simple multi-point feeding, and usually a large titanium tetrachloride storage tank is used to feed multiple reduction furnaces at the same time. This method is prone to feed fluctuations and feeding amount deviations. Once the feeding pipe is blocked, it is necessary to reduce the feeding speed or stop the feeding for unblocking.

[0006] To achieve the above-mentioned purpose, the present invention provides a new type of multi-point uniform and continuous feeding device for sponge titanium production, including a large cover and a feeding compensator, wherein the feeding compensator is composed of a compensator storage tank and a compensator bracket, and the compensator bracket is divided into a long-end bracket connecting rod and a short-end bracket connecting rod; a feeding hole is provided at the top of the compensator storage tank, and a titanium tetrachloride feeding pipe is connected to the outside of the feeding hole; a liquid level observation hole is provided on the compensator storage tank, and a discharge port is provided at the bottom of the compensator storage tank, and a discharge main pipe is connected to the outside of the discharge port; the lower part of the discharge main pipe is connected to the titanium tetrachloride reactor feeding pipe through a plurality of discharge branch pipes.

[0007] As a preferred embodiment of the present invention, the long-end bracket connecting rod includes a first long-end bracket connecting rod and a second long-end bracket connecting rod, the short-end bracket connecting rod includes a first short-end bracket connecting rod and a second short-end bracket connecting rod, and a plurality of large cover lifting ears are installed on the top of the large cover, and the long-end bracket connecting rod is connected to the large cover lifting ears by snaps or bolts.

[0008] As a preferred solution of the present invention, a main feed pipe flow control valve is installed on the titanium tetrachloride feed pipe, and the feed amount is controlled by the main feed pipe flow control valve.

[0009] As a preferred solution of the present invention, a material discharge main pipe flow control valve is installed on the material discharge main pipe, and the material discharge amount of titanium tetrachloride is controlled by the material discharge main pipe flow control valve.

[0010] As a preferred solution of the present invention, a feed branch pipe flow control valve is installed on the feed branch pipe, and the feed amount is controlled by the feed branch pipe flow control valve.

[0011] As a preferred embodiment of the present invention, the compensator storage tank is a cylindrical or rectangular tank body, and the bottom shape is adapted to the fixing port reserved on the compensator bracket, so that the compensator storage tank is fixed on the compensator bracket for easy separate disassembly.

[0012] As a preferred embodiment of the present invention, the large cover comprises a sealed cold cutting ring, a sealed rubber ring and a heat insulation board mounting hole, and a large cover fastening bolt is arranged at the outer edge of the large cover.

[0013] As a preferred solution of the present invention, a magnesium adding port, a passage, a pressure relief port and a cold cutting water port are also distributed on the large cover.

[0014] The present invention also provides a control method for a novel multi-point uniform continuous feeding in the production of titanium sponge, and a device for a novel multi-point uniform continuous feeding in the production of titanium sponge, characterized in that it comprises the following steps:

[0015] S1: Install the feeding compensator and the large cover, connect the corresponding titanium tetrachloride feeding pipe and control valve, and enter the feeding stage;

[0016] S2: Open the flow control valve of the main material delivery pipe, and titanium tetrachloride enters the compensator storage tank through the titanium tetrachloride delivery pipe;

[0017] S3: Check the liquid level of titanium tetrachloride in the compensator storage tank through the liquid level observation hole. When the liquid level reaches the set volume of the storage tank, the replenishment of titanium tetrachloride in the compensator storage tank is completed;

[0018] S4: Open the flow control valve of the material discharge main pipe and the flow control valve of the material discharge branch pipe to complete the feeding of titanium tetrachloride into the reactor;

[0019] S5: When calibrating the flow control valve of the material discharge main pipe, close the flow control valve of the material delivery main pipe, open the flow control valve of the material discharge main pipe, and compare the flow of the material discharge main pipe flow control valve with the flow through the liquid level observation hole on the compensator storage tank for calibration;

[0020] S6: When the feed pipe fails or is blocked and needs to be replaced or unblocked, keep the flow control valve of the main feed pipe and the flow control valve of the feed branch pipe open, and use the titanium tetrachloride in the compensator storage tank for feeding;

[0021] S7: When one or more of the titanium tetrachloride reactor feeding pipes are blocked and need to be cleaned or replaced, close the corresponding feed branch flow control valve on the feeding pipe that needs to be replaced, and at the same time increase the feed amount of the remaining feed branch flow control valves to compensate for the feeding amount of the closed feeding pipe to keep the total feeding rate unchanged.

[0022] As a preferred embodiment of the present invention, step S8 is also included: regularly cleaning and maintaining the compensator storage tank to ensure that there is no residue or blockage in the tank to ensure the continuity and uniformity of feeding; during the maintenance period, by adjusting the opening degree of the flow control valve of the material delivery main pipe and the flow control valve of the material discharge main pipe, the feeding process is continued using the remaining normally working compensator storage tanks to ensure the continuous operation of the production line.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. In the new multi-point uniform continuous feeding device and control method for producing titanium sponge, a titanium tetrachloride feeding compensator is added to the large cover to effectively store and adjust the feeding rate of multiple titanium tetrachloride feeding ports, which significantly reduces the titanium tetrachloride feeding rate fluctuation problem caused by too long or too many bends in the feeding pipe and improves the feeding stability.

[0025] 1. In the new multi-point uniform continuous feeding device and control method for producing titanium sponge, the design of the titanium tetrachloride feeding compensator mounting frame enables it to be easily disassembled and installed at different use stages of the reactor, and is compatible with the large cover lifting ears of the reactor, which simplifies the use of the bracket and optimizes the overall structure.

[0026] 3. In the new multi-point uniform continuous feeding device and control method for producing titanium sponge, the liquid level detector and liquid level observation hole set on the feeding compensator, combined with the liquid level marking scale, greatly facilitate the observation and control of the titanium tetrachloride liquid level and improve the accuracy of the operation. The titanium tetrachloride feeding speed detector set at the feeding port, combined with the liquid level detector or observation hole, can quickly and conveniently check and calibrate the feeding speed, making the feeding amount more accurate.

[0027] 4. In the new multi-point uniform continuous feeding device and control method for titanium sponge production, the device is equipped with multiple titanium tetrachloride feeding ports, and the feeding flow rate can be controlled at a single point. When a single feeding pipe is unblocked, other feeding points will perform compensatory feeding, achieving the effect of unblocking the feeding pipe without reducing the feeding speed or stopping the feeding, and significantly improving production efficiency.

[0028] 5. In the new multi-point uniform continuous feeding device and control method for the production of titanium sponge, multiple reactor feed pipes are set up to make the heat dispersion more uniform during the production process, facilitate heat dissipation, effectively avoid problems such as damage to the large cover insulation board and sintering of the titanium lump cap, and improve product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a front structural schematic diagram of the present invention;

[0030] Figure 2 It is a schematic diagram of the top view of the structure of the large cover in the present invention;

[0031] Figure 3 It is a structural schematic diagram of the compensator storage tank in the present invention;

[0032] The meaning of each number in the figure is:

[0033] 1. Titanium tetrachloride feed pipe; 2. Feed main pipe flow control valve; 3. Compensator storage tank; 4. Liquid level observation hole; 5. Discharge main pipe flow control valve; 6. Discharge branch pipe flow control valve; 7. Titanium tetrachloride reactor feeding pipe; 8. Large cover fastening bolts; 9. Large cover outer edge; 10. Sealed cold cutting ring; 11. Sealed rubber ring; 12. Insulation board mounting hole; 13. Large cover lifting ear; 14. Magnesium feeding port; 15. Passage; 16. Pressure relief port; 17. Cold cutting water port; 3-1. First long end bracket connecting rod; 3-2. Second long end bracket connecting rod; 3-3. First short end bracket connecting rod; 3-4. Second short end bracket connecting rod. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] The present invention provides a novel multi-point uniform continuous feeding device and control method for producing titanium sponge. Figure 1-Figure 3 As shown, it includes a large cover and a feeding compensator. The feeding compensator consists of a compensator storage tank 3 and a compensator bracket. The compensator bracket is divided into a long-end bracket connecting rod and a short-end bracket connecting rod; a feed hole is provided on the upper part of the compensator storage tank 3, and a titanium tetrachloride feeding pipe 1 is connected to the outside of the feed hole; a liquid level observation hole 4 is provided on the compensator storage tank 3, and the feed amount can be calculated according to the scale above combined with the storage tank volume. The storage tank volume can be designed to be 400kg-600kg, and other volumes can also be set in combination with other feed rates. A discharge port is provided at the bottom of the compensator storage tank 3, and a discharge main pipe is connected to the outside of the discharge port; the lower part of the discharge main pipe is connected to the titanium tetrachloride reactor feeding pipe 7 through a plurality of discharge branch pipes.

[0036] In this embodiment, the long-end bracket connecting rod includes a first long-end bracket connecting rod 3-1 and a second long-end bracket connecting rod 3-2, and the short-end bracket connecting rod includes a first short-end bracket connecting rod 3-3 and a second short-end bracket connecting rod 3-4. A plurality of large cover lifting ears 13 are installed on the top of the large cover 9 to facilitate lifting operations. The long-end bracket connecting rod is connected to the large cover lifting ears 13 by snaps or bolts.

[0037] Specifically, a main material delivery pipe flow control valve 2 is installed on the titanium tetrachloride delivery pipe 1, and the feed amount is controlled by the main material delivery pipe flow control valve 2.

[0038] Furthermore, a main material discharge pipe flow control valve 5 is installed on the main material discharge pipe, and the main material discharge pipe flow control valve 5 is used to control the amount of titanium tetrachloride discharged.

[0039] Furthermore, a feed branch pipe flow control valve 6 is installed on the feed branch pipe, and the feed branch pipe flow control valve 6 is used to control the feed amount.

[0040] Furthermore, the compensator storage tank 3 is a cylindrical or rectangular tank body, and the bottom shape is adapted to the fixing port reserved on the compensator bracket, so that the compensator storage tank 3 is fixed on the compensator bracket for easy separate disassembly.

[0041] Furthermore, the large cover includes a sealed cold cutting ring 10, a sealed rubber ring 11 and an insulation board mounting hole 12. The sealed rubber ring 11 mainly plays a sealing role. The insulation board mounting hole 12 facilitates the installation of a stable insulation board. A large cover fastening bolt 8 is arranged at the outer edge 9 of the large cover to play a role in sealing the connection with the reactor.

[0042] Furthermore, a magnesium adding port 14, a passage 15, a pressure relief port 16 and a cold cutting water port 17 are also distributed on the large cover.

[0043] When the multi-point uniform feeding device of the present invention is used, the large cover part of the reactor should be installed on the reactor. After the leak detection is qualified, the reactor hanging device is placed in the reduction reactor, and the two ends (3-1 and 3-2) of the long end bracket connecting rod of the titanium tetrachloride feeding compensator are assembled and installed with the two ears (13) adjacent to the large cover; then the short end bracket connecting rod (3-3 and 3-4) is connected and fixed to the middle of the long and short ends, the compensator storage tank (3) is placed on the bracket and fixed, and the above-mentioned corresponding feed pipe and control valve are connected and the corresponding device is installed.

[0044] The present invention also provides a control method for a novel multi-point uniform continuous feeding process for producing titanium sponge, and a device for a novel multi-point uniform continuous feeding process for producing titanium sponge, comprising the following steps:

[0045] S1: Install the feeding compensator and the large cover, connect the corresponding titanium tetrachloride feeding pipe and control valve, and enter the feeding stage;

[0046] S2: Open the flow control valve 2 of the main material delivery pipe, and titanium tetrachloride enters the compensator storage tank 3 through the titanium tetrachloride delivery pipe 1;

[0047] S3: Check the liquid level of titanium tetrachloride in the compensator storage tank 3 through the liquid level observation hole 4. When the liquid level reaches the set volume of the storage tank, the replenishment of titanium tetrachloride in the compensator storage tank 3 is completed;

[0048] S4: Open the main feed pipe flow control valve 5 and the branch feed pipe flow control valve 6 to complete the feeding of titanium tetrachloride into the reactor;

[0049] S5: When calibrating the discharge main pipe flow control valve 5, close the material delivery main pipe flow control valve 2, open the discharge main pipe flow control valve 5, and compare the flow rate of the discharge main pipe flow control valve 5 with the liquid level observation hole 4 on the compensator storage tank for calibration;

[0050] S6: When the feed pipe fails or is blocked and needs to be replaced or unblocked, keep the main feed pipe flow control valve 5 and the feed branch pipe flow control valve 6 open, and use the titanium tetrachloride in the compensator storage tank 3 for feeding;

[0051] S7: When one or more of the titanium tetrachloride reactor feeding pipes 7 are blocked and need to be cleaned or replaced, close the corresponding feed branch flow control valve 6 on the feeding pipe that needs to be replaced, and at the same time increase the feed amount of the remaining feed branch flow control valves 6 to compensate for the feeding amount of the closed feeding pipe, so as to keep the total feeding rate unchanged.

[0052] In this embodiment, step S8 is also included: regularly cleaning and maintaining the compensator storage tank 3 to ensure that there is no residue or blockage in the tank to ensure the continuity and uniformity of the feeding; during the maintenance period, by adjusting the opening degree of the main feed pipe flow control valve 2 and the main discharge pipe flow control valve 5, the remaining normally working compensator storage tanks are used to continue to maintain the feeding process if multiple are used in parallel, to ensure the continuous operation of the production line.

[0053] In the present invention, by adopting a multi-point uniform continuous feeding method, the feeding fluctuation and feeding amount deviation caused by single-point feeding or simple multi-point feeding are effectively avoided, the feeding stability and uniformity are improved, and thus the production efficiency and product quality of titanium sponge are improved. The device is designed with multiple titanium tetrachloride feeding ports, and the feeding flow rate is controlled at a single point through a separate feeding branch pipe feeding flow control valve. When a feeding pipe is blocked, the flow control valve on the feeding pipe can be closed, and the flow rate of other feeding pipes can be increased to compensate, so as to achieve the effect of unblocking the feeding pipe without reducing the feeding speed or stopping the feeding, and significantly improve the production efficiency.

[0054] The compensator storage tank is equipped with a liquid level observation hole and scale to facilitate operators to observe the liquid level of titanium tetrachloride and calculate the feed amount in combination with the tank volume, thus achieving precise control of the feeding process. The design of the feeding compensator mounting bracket allows it to be easily disassembled and installed at different stages of the reactor, and is compatible with the reactor cover lugs, which simplifies the use of the bracket, optimizes the overall structure, and reduces manufacturing costs. By setting up multiple reactor feed pipes, the heat is dispersed more evenly during the production process, which is convenient for heat dissipation, effectively avoiding problems such as damage to the cover insulation board and sintering of the titanium lump cap, and further improving product quality.

[0055] By setting up multiple reactor feed pipes, the heat distribution in the production process is more uniform, which is convenient for heat dissipation, effectively avoiding problems such as damage to the large cover insulation board and sintering of the titanium lump cap, and further improving product quality.

[0056] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A new multi-point uniform continuous feeding device for titanium sponge production, characterized by: The invention comprises a large cover and a feeding compensator, wherein the feeding compensator is composed of a compensator storage tank (3) and a compensator bracket, wherein the compensator bracket is divided into a long-end bracket connecting rod and a short-end bracket connecting rod; a feeding hole is arranged on the upper part of the compensator storage tank (3), and a titanium tetrachloride feeding pipe (1) is connected to the outside of the feeding hole; a liquid level observation hole (4) is arranged on the compensator storage tank (3), a discharge port is arranged on the bottom of the compensator storage tank (3), and a discharge main pipe is connected to the outside of the discharge port; and the lower part of the discharge main pipe is connected to a titanium tetrachloride reactor feeding pipe (7) through a plurality of discharge branch pipes.

2. The novel multi-point uniform continuous feeding device for producing titanium sponge according to claim 1 is characterized in that: The long-end bracket connecting rod comprises a first long-end bracket connecting rod (3-1) and a second long-end bracket connecting rod (3-2), and the short-end bracket connecting rod comprises a first short-end bracket connecting rod (3-3) and a second short-end bracket connecting rod (3-4). A plurality of large cover lifting ears (13) are installed on the top of the large cover (9), and the long-end bracket connecting rod is connected to the large cover lifting ears (13) by means of buckles or bolts.

3. The novel multi-point uniform continuous feeding device for producing titanium sponge according to claim 1 is characterized in that: The titanium tetrachloride feed pipe (1) is provided with a feed main pipe flow control valve (2), and the feed main pipe flow control valve (2) is used to control the feed amount.

4. The novel multi-point uniform continuous feeding device for producing titanium sponge according to claim 1 is characterized in that: The main material discharge pipe is provided with a main material discharge pipe flow control valve (5), and the main material discharge pipe flow control valve (5) is used to control the amount of titanium tetrachloride discharged.

5. The novel multi-point uniform continuous feeding device for producing titanium sponge according to claim 1 is characterized by: The feed branch pipe is provided with a feed branch pipe flow control valve (6), and the feed amount is controlled by the feed branch pipe flow control valve (6).

6. The novel multi-point uniform continuous feeding device for producing titanium sponge according to claim 1 is characterized in that: The compensator storage tank (3) is a cylindrical or rectangular tank body, and the shape of the bottom is adapted to the fixing opening reserved on the compensator bracket, so that the compensator storage tank (3) is fixed on the compensator bracket, which is convenient for separate disassembly.

7. The novel multi-point uniform continuous feeding device for producing titanium sponge according to claim 1 is characterized by: The large cover comprises a sealed cold cutting ring (10), a sealed rubber ring (11) and a heat insulation board mounting hole (12), and a large cover fastening bolt (8) is arranged at the outer edge (9) of the large cover.

8. The novel multi-point uniform continuous feeding device for producing titanium sponge according to claim 1 is characterized by: The large cover is also provided with a magnesium adding port (14), a passage (15), a pressure relief port (16) and a cold cutting water port (17).

9. A control method for a novel multi-point uniform continuous feeding in the production of titanium sponge, used in the device for a novel multi-point uniform continuous feeding in the production of titanium sponge according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1: Install the feeding compensator and the large cover, connect the corresponding titanium tetrachloride feeding pipe and control valve, and enter the feeding stage; S2: Open the flow control valve (2) of the main material delivery pipe, and the titanium tetrachloride enters the compensator storage tank (3) through the titanium tetrachloride delivery pipe (1); S3: Checking the liquid level of titanium tetrachloride in the compensator storage tank (3) through the liquid level observation hole (4), and when the liquid level reaches the set volume of the storage tank, the titanium tetrachloride in the compensator storage tank (3) is replenished; S4: Open the main feed pipe flow control valve (5) and the branch feed pipe flow control valve (6) to complete the feeding of titanium tetrachloride into the reactor; S5: When calibrating the flow control valve (5) of the material discharge main pipe, close the flow control valve (2) of the material delivery main pipe, open the flow control valve (5) of the material discharge main pipe, and compare the flow rate of the material discharge main pipe flow control valve (5) with the flow rate of the material discharge main pipe through the liquid level observation hole (4) on the compensator storage tank to perform calibration; S6: When the feed pipe fails or is blocked and needs to be replaced or unblocked, the main feed pipe flow control valve (5) and the branch feed pipe flow control valve (6) are kept open, and titanium tetrachloride in the compensator storage tank (3) is used for feeding; S7: When one or more of the titanium tetrachloride reactor feed pipes (7) are blocked and need to be cleaned or replaced, the corresponding feed branch pipe flow control valve (6) on the feed pipe that needs to be replaced is closed, and at the same time, the feed branch pipe flow control valves (6) of the remaining feed branch pipes are adjusted to increase the feed amount to compensate for the feed amount of the closed feed pipe, so as to keep the total feed rate unchanged.

10. The novel multi-point uniform continuous feeding control method for titanium sponge production according to claim 9 is characterized in that: The method also includes step S8: regularly cleaning and maintaining the compensator storage tank (3) to ensure that there is no residue or blockage in the tank to ensure the continuity and uniformity of the feeding; during the maintenance period, by adjusting the opening degree of the flow control valve (2) of the material delivery main pipe and the flow control valve (5) of the material discharge main pipe, the feeding process is continued using the remaining normally working compensator storage tanks to ensure the continuous operation of the production line.

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