An apparatus for removing free bromine from hydrogen bromide gas

Abstract

The utility model belongs to hydrogen bromide gas processing equipment technical field, concretely is a kind of hydrogen bromide gas equipment of removing free bromine, including reaction kettle body, the upper welding of reaction kettle body has feed inlet.The utility model uses, by the inside moving rotating handle of adjusting groove to produce thrust, make the positioning plate rotation with the center of column, to make the both ends of storage box close, need to make gas pass through, the both ends of storage box open, make hydrogen bromide gas pass through from the inside of the multilayer activated carbon of the inside of storage box, and activated carbon carries out adsorption to free bromine in hydrogen bromide gas;Need to replace the activated carbon in the inside of storage box, the both ends of storage box close, to reduce the leakage condition of free bromine adsorbed in the inside of storage box.

Description

Technical Field

[0001] This utility model belongs to the technical field of hydrogen bromide gas treatment equipment, specifically a device for removing free bromine from hydrogen bromide gas. Background Technology

[0002] Hydrogen bromide is a basic raw material for manufacturing various bromine compounds and alkyl bromides, and is widely used in the production of pharmaceuticals, dyes, and fragrances. Furthermore, hydrogen bromide has important applications in semiconductor processes, serving as a cleaning agent, etchant, dopant, and hydrogen atom source in the fabrication and processing of semiconductor devices. During the production of hydrogen bromide gas, unreacted bromine is inevitably present, necessitating the removal of bromine from the hydrogen bromide gas to meet usage requirements. This is typically achieved using equipment for removing free bromine from hydrogen bromide gas.

[0003] Existing equipment for removing free bromine from hydrogen bromide gas typically uses activated carbon adsorption to absorb free bromine. However, the activated carbon needs to be replaced periodically. Free bromine is highly corrosive and toxic, requiring sealed operation during treatment. Since the gas needs to enter and exit from one end of the activated carbon adsorption column, and both ends of the column are open structures, the free bromine gas adsorbed inside the activated carbon can easily leak from the open ends of the adsorption column during replacement, thus contaminating the working environment. Summary of the Invention

[0004] The purpose of this invention is to provide a device for removing free bromine from hydrogen bromide gas, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a device for removing free bromine from hydrogen bromide gas, comprising a reaction vessel body, an inlet and a gas outlet welded to the top of the reaction vessel body, a mounting window opened on one side of the gas outlet, the inlet located on the side of the gas outlet away from the mounting window, a discharge port provided at the bottom of the reaction vessel body, an adsorption mechanism provided inside the gas outlet, a clamping mechanism installed in the middle of the inner wall of the gas outlet, and the side of the clamping mechanism away from the gas outlet being attached to the outer wall of the adsorption mechanism.

[0006] Preferably, the clamping mechanism includes clamping plates, two clamping plates are symmetrically installed inside the gas outlet, and a sleeve is fixedly installed on the side of each clamping plate near the inner wall of the gas outlet. A guide rod is slidably installed on the end of the sleeve away from the clamping plate, and the end of the guide rod away from the sleeve is fixedly installed on the inner wall of the gas outlet.

[0007] Preferably, a spring is fitted on the outer side of the sleeve and guide rod, one end of the spring is in contact with the outer wall of the clamping plate, and the other end of the spring is in contact with the inner wall of the gas outlet.

[0008] Preferably, the adsorption mechanism includes a storage box, which is installed inside the gas outlet. The storage box has multiple partitions evenly installed inside, which divide the storage box into multiple cavities, and activated carbon is placed in each of the multiple cavities.

[0009] Preferably, the upper and lower ends of the storage box are fixedly installed with limit rings, and an adjustment groove is provided on one side of the limit ring. A rotating handle is provided inside the adjustment groove, and an adjustment screw is threadedly installed on the end of the rotating handle located outside the adjustment groove. Fixed screw holes are provided at the top and bottom of the gas outlet, and the adjustment screw is threadedly installed inside the fixed screw hole.

[0010] Preferably, the rotating handle has multiple grooves evenly distributed on the side near the storage box, and a sliding block is slidably installed inside each of the multiple grooves. The sliding block is fixedly installed on the positioning plate. The multiple positioning plates are arranged in a circular array. A locking post is installed on the side of each of the multiple positioning plates away from the rotating handle. The storage box has multiple slots evenly distributed on the side near the positioning plate. The size and position of the multiple slots correspond to the locking posts, and the multiple locking posts are respectively inserted into the slots.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] In use, this invention generates thrust by moving and rotating the handle inside the adjusting groove, causing the positioning plate to rotate around the locking post, thereby closing both ends of the storage box. When gas needs to pass through, both ends of the storage box are opened, allowing hydrogen bromide gas to pass through the multi-layer activated carbon inside the storage box, where the activated carbon adsorbs the free bromine in the hydrogen bromide gas. When the activated carbon needs to be replaced, both ends of the storage box are closed, thereby reducing the leakage of adsorbed free bromine inside the storage box. Attached Figure Description

[0013] Figure 1 This is a front-view three-dimensional structural diagram of the present invention;

[0014] Figure 2 This is a three-dimensional structural diagram of the gas outlet of this utility model;

[0015] Figure 3 This is a three-dimensional cross-sectional structural diagram of the storage box of this utility model;

[0016] Figure 4 This is a top view of the clamping mechanism of this utility model.

[0017] Figure 5 This is a three-dimensional structural diagram of the rotating handle of this utility model;

[0018] Figure 6 This is a three-dimensional structural diagram of the positioning plate of this utility model.

[0019] In the diagram: 1. Reactor body; 2. Feed inlet; 3. Discharge outlet; 4. Gas outlet; 5. Adsorption mechanism; 6. Clamping mechanism; 601. Clamping plate; 602. Spring; 603. Sleeve; 604. Guide rod; 501. Storage box; 502. Divider plate; 503. Limiting ring; 504. Adjustment groove; 505. Adjustment screw; 506. Fixing screw hole; 507. Rotating handle; 508. Positioning plate; 509. Slide groove; 510. Sliding block; 511. Slot; 512. Slot. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1-6This utility model provides a technical solution: a device for removing free bromine from hydrogen bromide gas, comprising a reaction vessel body 1, with an inlet 2 and a gas outlet 4 welded to the top of the reaction vessel body 1. A mounting window is provided on one side of the gas outlet 4, and the inlet 2 is located on the side of the gas outlet 4 away from the mounting window. A discharge port 3 is provided at the bottom of the reaction vessel body 1. An adsorption mechanism 5 is provided inside the gas outlet 4, and a clamping mechanism 6 is installed in the middle of the inner wall of the gas outlet 4. The side of the clamping mechanism 6 away from the gas outlet 4 is attached to the outer wall of the adsorption mechanism 5. The clamping mechanism 6 includes a clamping plate 601, and two clamping plates 601. Two clamping plates 601 are symmetrically installed inside the gas outlet 4. Sleeves 603 are fixedly installed on one side of each clamping plate 601 near the inner wall of the gas outlet 4. A guide rod 604 is slidably installed on the end of the sleeve 603 away from the clamping plate 601, and the end of the guide rod 604 away from the sleeve 603 is fixedly installed on the inner wall of the gas outlet 4. A spring 602 is sleeved on the outside of the sleeve 603 and the guide rod 604. One end of the spring 602 contacts the outer wall of the clamping plate 601, and the other end of the spring 602 contacts the inner wall of the gas outlet 4. The adsorption mechanism 5 includes a storage box 501, which is installed on the gas outlet 4. Inside the outlet 4, multiple partition plates 502 are evenly installed inside the storage box 501, dividing the storage box 501 into multiple cavities, each containing activated carbon. Limiting rings 503 are fixedly installed at both the upper and lower ends of the storage box 501. An adjustment groove 504 is provided on one side of the limiting ring 503, and a rotating handle 507 is provided inside the adjustment groove 504. An adjusting screw 505 is threaded onto the end of the rotating handle 507 located outside the adjustment groove 504. Fixing screw holes 506 are provided at both the top and bottom of the gas outlet 4, and the adjusting screw 505 is threaded onto the fixing screw hole 506. Inside the screw hole 506; multiple sliding grooves 509 are evenly provided on the side of the rotating handle 507 near the storage box 501. Sliding blocks 510 are slidably installed inside the multiple sliding grooves 509. The sliding blocks 510 are fixedly installed on the positioning plate 508. The multiple positioning plates 508 are arranged in a circular array. A locking post 512 is installed on the side of the multiple positioning plates 508 away from the rotating handle 507. Multiple locking slots 511 are evenly provided on the side of the storage box 501 near the positioning plate 508. The size and position of the multiple locking slots 511 correspond to the locking posts 512. The multiple locking posts 512 are respectively inserted into the inside of the locking slots 511.

[0022] In specific implementation, the clamping mechanism 6 clamps the outer wall of the storage box 501 with the clamping plate 601, which facilitates the limiting of the storage box 501 when the adsorption mechanism 5 is placed inside the gas outlet 4. The sleeve 603, guide rod 604 and spring 602 installed on the rear side of the clamping plate 601 cooperate to restrict the movement direction of the clamping plate 601, so that the clamping plate 601 can only move parallel inside the gas outlet 4, which enhances the stability of the clamping plate 601 when clamping the outer wall of the storage box 501. In addition, the springs 602 installed on the rear side of the clamping plate 601 have equal elastic force, so when the storage box 501 is clamped between the two clamping plates 601, the pushing force generated between the two springs 602 can align the central axis of the storage box 501 with the central axis of the gas outlet 4.

[0023] Next, rotate the handle 507. Since a sliding block 510 is installed inside the groove 509 on the rear side of the handle 507, the thrust generated while rotating the handle 507 causes the sliding block 510 to move inside the groove 509. This causes multiple positioning plates 508 to rotate around the locking post 512, thereby opening the seals at both ends of the storage box 501 to allow gas to pass through. After the positioning plates 508 are fully opened, rotate the adjusting screw 505 to install them into the fixing screw hole. The internal space of 506 is used to fix the storage box 501 and the gas outlet 4, thereby improving the stability of the storage box 501 during use and preventing the positioning plate 508 from resetting and closing during operation. When it is necessary to remove the storage box 501 from the inside of the gas outlet 4 to replace the activated carbon, simply rotate the rotating handles 507 on the upper and lower sides to make them rotate and close the positioning plate 508, which can seal both ends of the storage box 501, thereby reducing the leakage of free bromine adsorbed by the activated carbon inside the storage box 501.

[0024] In summary, when this utility model is used, the raw materials for producing hydrogen bromide gas are added to the interior of the reactor body 1 through the feed inlet 2, where the raw materials undergo a biochemical reaction to generate hydrogen bromide gas. The hydrogen bromide gas rises and is discharged from the interior of the reactor body 1 through the gas outlet 4. Simultaneously, the activated carbon in the adsorption mechanism 5 adsorbs the free bromine inside the hydrogen bromide gas. This is existing technology and will not be elaborated further here. By moving and rotating the handle 507 inside the regulating tank 504, a thrust is generated, causing the positioning plate 508 to rotate around the locking post 512, thereby closing both ends of the storage box 501. When gas needs to pass through, both ends of the storage box 501 are opened; when the activated carbon needs to be replaced, both ends of the storage box 501 are closed to reduce the leakage of free bromine adsorbed inside the storage box 501. Thus, when this utility model is used, it plays the role of using activated carbon to adsorb free bromine and reduce the leakage of free bromine. The contents not described in detail in this description are existing technologies known to those skilled in the art.

[0025] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A device for removing free bromine from hydrogen bromide gas, comprising a reaction vessel body (1), characterized in that: The reactor body (1) is welded with a feed inlet (2) and a gas outlet (4) on the top. A mounting window is provided on one side of the gas outlet (4). The feed inlet (2) is located on the side of the gas outlet (4) away from the mounting window. A discharge port (3) is provided at the bottom of the reactor body (1). An adsorption mechanism (5) is provided inside the gas outlet (4). A clamping mechanism (6) is installed in the middle of the inner wall of the gas outlet (4). The side of the clamping mechanism (6) away from the gas outlet (4) is attached to the outer wall of the adsorption mechanism (5).

2. The device for removing free bromine from hydrogen bromide gas according to claim 1, characterized in that: The clamping mechanism (6) includes clamping plates (601). Two clamping plates (601) are symmetrically installed inside the gas outlet (4). A sleeve (603) is fixedly installed on the side of each clamping plate (601) near the inner wall of the gas outlet (4). A guide rod (604) is slidably installed on the end of the sleeve (603) away from the clamping plate (601). The end of the guide rod (604) away from the sleeve (603) is fixedly installed on the inner wall of the gas outlet (4).

3. The device for removing free bromine from hydrogen bromide gas according to claim 2, characterized in that: A spring (602) is fitted on the outside of the sleeve (603) and the guide rod (604). One end of the spring (602) is in contact with the outer wall of the clamping plate (601), and the spring (602) is in contact with the inner wall of the gas outlet (4).

4. The device for removing free bromine from hydrogen bromide gas according to claim 1, characterized in that: The adsorption mechanism (5) includes a storage box (501), which is installed inside the gas outlet (4). Multiple partition plates (502) are evenly installed inside the storage box (501), which divide the storage box (501) into multiple cavities. Activated carbon is placed in each of the multiple cavities.

5. The device for removing free bromine from hydrogen bromide gas according to claim 4, characterized in that: The storage box (501) is fixedly installed with limit rings (503) at both the upper and lower ends. An adjustment groove (504) is provided on one side of the limit ring (503). A rotating handle (507) is provided inside the adjustment groove (504). An adjusting screw (505) is threaded on one end of the rotating handle (507) located outside the adjustment groove (504). Fixed screw holes (506) are provided at the top and bottom of the gas outlet (4). The adjusting screw (505) is threaded inside the fixed screw hole (506).

6. The apparatus for removing free bromine from hydrogen bromide gas according to claim 5, characterized in that: The rotating handle (507) has multiple grooves (509) evenly distributed on the side near the storage box (501). Each groove (509) has a sliding block (510) slidably installed inside it. The sliding block (510) is fixedly installed on the positioning plate (508). The positioning plates (508) are arranged in a circular array. Each positioning plate (508) has a locking post (512) installed on the side away from the rotating handle (507). The storage box (501) has multiple slots (511) evenly distributed on the side near the positioning plate (508). The size and position of each slot (511) correspond to the locking post (512). Each locking post (512) is inserted into the slot (511).

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