Method and structure for installing concentric rings in sponge titanium reduction distillation reactor

Abstract

The invention relates to the field of titanium sponge production equipment, in particular to a method and a structure for installing concentric rings in a titanium sponge reduction distillation reactor. B, secondly, a reactor barrel is arranged on a mounting support, the reactor barrel is in a suspended state under the support of the mounting support, the axis of the reactor barrel is arranged in the vertical direction, and the state of the barrel axis of the reactor barrel in the vertical direction is kept; c, the new concentric ring partition plate is hoisted into the reactor barrel from the opening in the top of the reactor barrel and placed downwards to the bottom of the reactor barrel, and the axis of the concentric ring partition plate is arranged in the vertical direction; adjusting the position of the concentric ring partition plate at the bottom of the reactor barrel to enable the axis of the concentric ring partition plate to be coaxial with the axis of the barrel; and d, fixing the new concentric ring partition plate and the bottom of the reactor barrel into an integral structure. The mounting method is particularly suitable for the mounting process of the concentric ring in the titanium sponge reduction distillation reactor.

Description

Technical Field

[0001] This invention relates to the field of sponge titanium production equipment, and in particular to a method and structure for installing concentric rings inside a sponge titanium reduction distillation reactor. Background Technology

[0002] The titanium sponge reduction distillation reactor is a core piece of equipment in the titanium sponge production process. An annular baffle is installed at the bottom of the reactor shell. One of the functions of the annular baffle is to optimize the fluid dynamics within the reactor, improving reaction efficiency by promoting local circulation. Therefore, accurate installation of the annular baffle is one of the key technical points for ensuring reaction efficiency within the reactor. Taking the scheme in publication number CN107267779A as an example, it involves the specific structure of an existing titanium sponge reduction distillation reactor. Its specific structure mainly includes a reaction tank (i.e., the reactor shell) and a pad and annular baffles (i.e., concentric ring baffles) located within the reaction tank. There are at least two annular baffles, each with radial through holes at its upper part. Each annular baffle has a different diameter and is coaxially arranged with the reaction tank and connected to the bottom of the tank. A pad is horizontally positioned above the annular baffles and has through holes on it.

[0003] Because the titanium sponge reducing distillation reactor is used frequently, the annular baffle at the bottom of the reactor shell needs to be replaced after its service life. The current replacement method involves a horizontal installation process: the reactor shell is placed horizontally, the original annular baffle is removed, and then a lifting frame is set up inside the reactor shell. The new annular baffle is then lifted and welded to the bottom of the reactor shell using the lifting ropes.

[0004] However, because the axis of the new annular baffle is horizontally aligned with the axis of the reactor shell during positioning, it is difficult to adjust the axis of the annular baffle, lifted by the hoisting frame, to be coaxial with the reactor shell's axis. This is because the hoisting ropes first require adjusting the height of the annular baffle's axis in the vertical direction. After ensuring the axis is horizontal, the angle of rotation of the axis around the vertically aligned hoisting ropes must be adjusted to align it with the shell's axis within the horizontal plane. Only when both height and angle are adjusted correctly can the annular baffle's axis be coaxial with the reactor shell's axis. However, the combined adjustment of these two dimensions significantly increases the overall difficulty of the adjustment, reducing installation efficiency and resulting in a lower degree of coaxiality between the annular baffle and the reactor shell, thus affecting the subsequent reaction efficiency within the reactor. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a method and structure for installing concentric rings in a sponge titanium reduction distillation reactor to quickly achieve the positioning of concentric ring partitions.

[0006] The technical solution adopted by this invention to solve its technical problem is: a method for installing concentric rings inside a sponge titanium reduction distillation reactor. a. First, remove the original concentric ring baffles inside the reactor cylinder; b. Next, the reactor cylinder is placed on the mounting bracket. The reactor cylinder is suspended under the support of the mounting bracket. The axis of the reactor cylinder is set vertically and kept in a vertical state. c. Hoist the new concentric ring baffle into the reactor body through the opening at the top of the reactor body, and place it downwards to the bottom of the reactor body, with the axis of the concentric ring baffle set vertically; then, adjust the position of the concentric ring baffle at the bottom of the reactor body so that the axis of the concentric ring baffle is coaxial with the axis of the reactor body. d. Fix the new concentric ring partition to the bottom of the reactor shell as an integral structure.

[0007] Furthermore, the concentric ring partition includes a first concentric ring partition and a second concentric ring partition, with different diameters between the two. First, the first concentric ring partition is installed at the bottom of the reactor body according to steps c and d, and then the second concentric ring partition is installed at the bottom of the reactor body according to steps c and d. The axis of the first concentric ring partition, the axis of the second concentric ring partition, and the axis of the reactor body are coaxial.

[0008] Furthermore, in step b, the reactor shell is mounted on the support platform at the top of the mounting bracket via the shell flange on the outer periphery of the opening.

[0009] Furthermore, in step b, the cylinder axis of the reactor cylinder is adjusted to the vertical direction by inserting a wedge block between the cylinder flange and the support platform.

[0010] The concentric ring mounting structure inside the sponge titanium reduction distillation reactor includes a reactor cylinder and a concentric ring baffle plate set at the bottom of the reactor cylinder. It includes a mounting bracket, which is set vertically. The reactor cylinder is set on the mounting bracket, and the bottom of the reactor cylinder is suspended. The axis of the reactor cylinder is set vertically, and the axis of the concentric ring baffle plate is set coaxially with the axis of the cylinder.

[0011] The beneficial effects of this invention are: 1. By placing the reactor shell on a mounting bracket and suspending the bracket, the reactor shell's axis is aligned vertically. Then, using the shell's axis as a reference, the concentric ring baffle's axis is aligned vertically and placed at the bottom of the reactor shell. Since both the concentric ring baffle's axis and the reactor shell's axis are easily kept vertical under their own weight, a slight horizontal adjustment of the concentric ring baffle's axis quickly aligns it with the reactor shell's axis, achieving proper positioning. This solution cleverly utilizes the reactor shell's and the concentric ring baffle's own weight to ensure the axes are vertically aligned, simplifying adjustment to a horizontal adjustment of the concentric ring baffle's axis. This significantly improves installation efficiency while ensuring the installation quality of the concentric ring baffle, thus effectively guaranteeing the reaction efficiency within the reactor.

[0012] 2. By utilizing the flange on the outer periphery of the reactor cylinder opening, the reactor cylinder is mounted on a support platform at the top of the mounting bracket. If the axis of the reactor cylinder is not vertical, a wedge block can be inserted between the flange and the support platform to adjust the axis of the reactor cylinder to a vertical position. Due to the self-weight of the suspended reactor cylinder, the above-mentioned method of inserting a wedge block allows for fine-tuning of the cylinder axis. The operation is not difficult and can achieve precise correction of the cylinder axis.

[0013] This invention is particularly applicable to the installation process of concentric rings within a titanium sponge reducing distillation reactor. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of one embodiment of the installation structure of the present invention.

[0015] The following are marked in the figure: concentric ring partition 1, reactor cylinder 2, upper cylinder section 21, lower cylinder section 22, cylinder section dividing line 23, cylinder flange 24, opening 25, cylinder axis 27, mounting bracket 3, and support platform 31. Detailed Implementation

[0016] The invention will be further described below with reference to the accompanying drawings.

[0017] like Figure 1The concentric ring mounting structure inside the titanium sponge reduction distillation reactor shown mainly includes a reactor cylinder 2, a concentric ring partition 1 installed at the bottom of the reactor cylinder 2, and a mounting bracket 3. The main body of the reactor cylinder 2 consists of a lower cylinder section 22 and an upper cylinder section 21, which are welded together at the cylinder section dividing line 23. The reactor cylinder 2 has a hollow interior. A cylinder flange 24 is provided around the outer edge of the opening 25 of the upper cylinder section 21. The cylinder flange 24 protrudes outward along a direction perpendicular to the cylinder axis 27 of the reactor cylinder 2. In this embodiment, the cylinder axis 27 is perpendicular to the cylinder section dividing line 23.

[0018] like Figure 1 As shown, the mounting bracket 3 consists of two vertically aligned support rods, and a horizontally aligned support platform 31 is mounted on top of the mounting bracket 3. The support platform 31 has a hole through which the reactor cylinder 2 passes. The diameter of this hole is smaller than the outer diameter of the flange 24 of the reactor cylinder 2, allowing the flange 24 of the reactor cylinder 2 to be positioned on the support platform 31. Because the length of the two vertically aligned support rods is longer than the length of the reactor cylinder 2, after the reactor cylinder 2 is mounted on the support platform 31, its bottom is higher than the ground, placing the reactor cylinder 2 in a suspended state. Under normal circumstances, the suspended reactor cylinder 2 will naturally maintain a vertical axis 27 under its own weight. If the axis 27 deviates slightly from the vertical direction, it can be adjusted back to a vertical position by inserting a wedge between the flange 24 and the support platform 31. Throughout the entire installation process of the concentric ring partition 1, the cylinder axis 27 remains vertical.

[0019] The concentric ring baffle 1 comprises several concentric ring baffles of different diameters, which are coaxially arranged with respect to the cylinder axis 27, thus forming several annular baffles at the bottom of the reactor cylinder 2. The concentric ring baffles can be fixed to the bottom of the reactor cylinder 2 by welding or other methods. The specific fixing method between the concentric ring baffles and the bottom of the reactor cylinder 2 is existing technology and will not be described further here.

[0020] The concentric ring installation method inside the sponge titanium reduction distillation reactor can be carried out as follows: a. First, remove the original concentric ring partition 1 inside the reactor cylinder 2; b. Second, set the reactor cylinder 2 onto the mounting bracket 3. The reactor cylinder 2 is suspended under the support of the mounting bracket 3, and the axis 27 of the reactor cylinder 2 is set vertically and kept in a vertical state; the reactor cylinder 2 is set on the support platform 31 at the top of the mounting bracket 3 through the cylinder flange 24 on the outer periphery of the opening 25; the cylinder axis 27 of the reactor cylinder 2 is adjusted to the vertical direction by inserting a wedge block between the cylinder flange 24 and the support platform 31; c. The new concentric ring baffle 1 is hoisted into the reactor body 2 through the opening 25 at the top of the reactor body 2 and placed downwards to the bottom of the reactor body 2, with the axis of the concentric ring baffle 1 set vertically; then, the position of the concentric ring baffle 1 at the bottom of the reactor body 2 is adjusted so that the axis of the concentric ring baffle 1 is coaxial with the axis 27 of the reactor body; d. The new concentric ring baffle 1 is fixed to the bottom of the reactor body 2 as an integral structure.

[0021] When the concentric ring partition 1 includes multiple concentric ring partitions with different diameters, the following scheme can be followed. The following explanation uses the example of the concentric ring partition 1 including a first concentric ring partition and a second concentric ring partition, with different diameters between the first and second concentric ring partitions. First, the first concentric ring partition is installed at the bottom of the reactor cylinder 2 according to steps c and d. Then, the second concentric ring partition is installed at the bottom of the reactor cylinder 2 according to steps c and d. The axis of the first concentric ring partition, the axis of the second concentric ring partition, and the axis 27 of the cylinder are coaxial.

[0022] In addition to the steps mentioned above, the following precautions should be taken during the installation process: 1. System Cooling and Pressure Relief: Ensure that reactor cylinder 2 has been completely cooled to a safe temperature (usually room temperature), and release the internal pressure of reactor cylinder 2 to atmospheric pressure through a dedicated pipeline. Inert Gas Replacement: Use high-purity argon gas to purge the inside of reactor cylinder 2 multiple times to thoroughly replace residual magnesium vapor, titanium tetrachloride, and other flammable, explosive, or toxic gases until the gas test is qualified. Tools and Protection: Prepare special disassembly tools (such as copper wrenches and hydraulic pullers). Operators must wear full protective clothing, high-temperature resistant gloves, and masks to prevent contact with residual chemicals. 2. When disassembling the original concentric ring partition 1, if the bolts of the concentric ring partition 1 are corroded, first spray with a loosening agent and soak it, then gently tap it with a copper hammer to loosen it. Forced disassembly is strictly prohibited to avoid damaging the flange sealing surface. When removing the concentric ring baffle 1, use a crane or hoisting equipment to slowly lift it out, keeping it horizontal and avoiding collisions with the inner wall of the reactor shell 2. Third, when installing the new concentric ring baffle 1, thoroughly clean the inner wall of the reactor shell 2 and the mounting surface of the new concentric ring baffle 1 to ensure no residue remains. Check the dimensions, material (usually high-temperature resistant stainless steel), and sealing surface of the new concentric ring baffle 1 for damage. Slowly place the new concentric ring baffle 1 into the designated position, ensuring a uniform gap between it and the inner wall of the reactor shell 2, avoiding any tilting.

Claims

1. A method for installing concentric rings in a titanium sponge reduction distillation reactor, characterized in that: a. first, the original concentric ring partition (1) in the reactor cylinder (2) is removed; b. second, the reactor cylinder (2) is arranged on the installation support (3), the reactor cylinder (2) is in a suspended state under the support of the installation support (3), the axis (27) of the reactor cylinder (2) is arranged in a vertical direction and the state of the cylinder axis (27) of the reactor cylinder (2) in the vertical direction is maintained; c. the new concentric ring partition (1) is hoisted into the reactor cylinder (2) from the opening (25) at the top of the reactor cylinder (2) and placed downward to the bottom of the reactor cylinder (2), the axis of the concentric ring partition (1) is arranged in a vertical direction; then, the concentric ring partition (1) is adjusted at the bottom of the reactor cylinder (2) so that the axis of the concentric ring partition (1) is coaxially arranged with the cylinder axis (27); d. the new concentric ring partition (1) is fixed as an integral structure with the bottom of the reactor cylinder (2).

2. The method for installing concentric rings in a titanium sponge reduction distillation reactor according to claim 1, characterized in that: the concentric ring partition (1) comprises a first concentric ring partition and a second concentric ring partition, the diameters of the first concentric ring partition and the second concentric ring partition are different; first, the first concentric ring partition is installed at the bottom of the reactor cylinder (2) according to steps c and d, then the second concentric ring partition is installed at the bottom of the reactor cylinder (2) according to steps c and d, the axis of the first concentric ring partition, the axis of the second concentric ring partition and the cylinder axis (27) are coaxially arranged.

3. The method of installing concentric rings in a titanium sponge reduction distillation reactor according to claim 1 or 2, characterized in that: In step b, the reactor cylinder (2) is arranged on the support platform (31) at the top of the installation support (3) through the cylinder flange (24) around the opening (25).

4. The method of claim 3, wherein the concentric ring is installed in the titanium sponge reduction distillation reactor. In step b, the cylinder axis (27) of the reactor cylinder (2) is adjusted to the vertical direction by inserting a wedge-shaped block between the cylinder flange (24) and the support platform (31).

5. A concentric ring installation structure in a titanium sponge reduction distillation reactor, comprising a reactor cylinder (2) and a concentric ring partition (1) arranged at the bottom of the reactor cylinder (2), characterized in that: it comprises an installation support (3), the installation support (3) is arranged in a vertical direction, the reactor cylinder (2) is arranged on the installation support (3), the bottom of the reactor cylinder (2) is arranged in a suspended state, the cylinder axis (27) of the reactor cylinder (2) is arranged in a vertical direction, and the axis of the concentric ring partition (1) is coaxially arranged with the cylinder axis (27).

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