A hydrogen chloride gas purification device

Abstract

The utility model belongs to hydrogen chloride gas purification technical field especially relates to a hydrogen chloride gas purification device, including the air inlet pipe, the air inlet pipe one end is equipped with the graphite heat exchanger, the graphite heat exchanger one end pipeline connection has the filter frame, the top of filter frame is provided with the bolt, the outer wall screw thread connection of bolt has the connecting frame, the one end welding of connecting frame has the locating plate, the outer wall inlaying of locating plate has the sealing plate, the bottom welding of sealing plate has the mounting bracket, the inner wall fixed connection of mounting bracket has the filter plate, the pipeline connection of filter frame one end has the connecting pipe, the outer wall welding of connecting pipe has the spray tower, through setting up the sealing plate, bolt rotation drives the connecting frame along the outer wall of filter frame sliding through the thread, the connecting frame sliding drives the locating plate and the inlaying of sealing plate, realizes the installation operation of sealing plate, then, hydrogen chloride gas is through the filter plate of mounting bracket inner wall and carries out the preliminary filtration operation to hydrogen chloride gas.

Description

Technical Field

[0001] This utility model belongs to the field of hydrogen chloride gas purification technology, and in particular relates to a hydrogen chloride gas purification device. Background Technology

[0002] In the production process of chemical raw materials, hydrogen chloride, as a common reaction byproduct, is usually discharged from the reaction system as tail gas along with other light components. When treating hydrogen chloride waste gas containing organic solvents, alkaline absorption is mostly adopted.

[0003] Existing hydrogen chloride gas purification devices often result in the hydrogen chloride gas containing a large number of impurities during operation, leading to slow purification processes. Therefore, we propose a new hydrogen chloride gas purification device. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned technical problems by providing a hydrogen chloride gas purification device that enables the filtration of hydrogen chloride gas.

[0005] In view of this, the present invention provides a hydrogen chloride gas purification device, including an inlet pipe, a graphite heat exchanger installed at one end of the inlet pipe, a filter frame connected to one end of the graphite heat exchanger, a bolt at the top of the filter frame, a connecting bracket threaded onto the outer wall of the bolt, a positioning plate welded to one end of the connecting bracket, a sealing plate fitted into the outer wall of the positioning plate, a mounting bracket welded to the bottom end of the sealing plate, a filter plate fixedly connected to the inner wall of the mounting bracket, and a connecting pipe connected to one end of the filter frame. A spray tower is welded to the outer wall of the connecting pipe. A demister frame is fixedly connected to one end of the connecting pipe. A demister plate is fixedly connected to the inner wall of the demister frame. A partition is welded to the top of the demister frame. A spray rack is installed on the inner wall of the spray tower above the partition. A liquid inlet is fixedly connected to the outer wall of the spray rack. A spray nozzle is connected to one end of the liquid inlet via a pipe. A purification frame is installed above the spray rack. Graphite packing is fixedly connected to the inner wall of the purification frame. An exhaust port is fixedly connected to the top of the spray tower.

[0006] Based on the above structure, the bolt rotation drives the connecting frame to slide along the outer wall of the filter frame through the thread. The sliding of the connecting frame causes the positioning plate to engage with the sealing plate, realizing the installation operation of the sealing plate. Then, the hydrogen chloride gas undergoes preliminary filtration through the filter plate on the inner wall of the mounting frame.

[0007] Preferably, the positioning plate has an "L" shaped cross-section, and the sealing plate forms a fixed structure with the filter frame through the connecting frame and the positioning plate. In this embodiment, by setting the positioning plate with an "L" shaped cross-section, the rotation of the bolt drives the connecting frame to slide along the outer wall of the filter frame through the thread. The sliding of the connecting frame drives the positioning plate to fit into the sealing plate, thereby realizing the installation operation of the sealing plate.

[0008] Preferably, the mounting bracket is provided in three sets, and the three sets of mounting brackets are equally distributed along the bottom end of the sealing plate. In this embodiment, by providing three sets of mounting brackets, it is beneficial for hydrogen chloride gas to undergo multi-stage filtration through the filter plate on the inner wall of the mounting bracket.

[0009] Preferably, the central axis of the demisting frame coincides with the central axis of the spray tower. In this embodiment, this facilitates the demisting and spray purification of hydrogen chloride gas.

[0010] Preferably, the demister plate is inclined and the demister plate is circumferentially distributed at equal angles about the central axis of the demister frame. In this embodiment, by setting the demister plate, it is beneficial for hydrogen chloride gas to enter the demister frame through the connecting pipe, and for the demister plate to perform demister operation on the hydrogen chloride gas, thereby removing acid mist or particulate matter entrained in the hydrogen chloride gas.

[0011] Preferably, the baffle is conical in shape. In this embodiment, by setting a conical baffle, dilute alkaline solution sprayed from the spray nozzle is prevented from entering the demisting frame.

[0012] Preferably, the spray nozzles are provided in six sets, which are equidistantly distributed along the inner wall of the spray frame. In this embodiment, the operator sprays the dilute alkali solution from the spray nozzles through the liquid inlet. The dilute alkali solution and hydrogen chloride gas undergo an acid-base neutralization reaction. By providing six sets of spray nozzles, it is easy for the dilute alkali solution and hydrogen chloride gas to react evenly.

[0013] The beneficial effects of this utility model are:

[0014] 1. This hydrogen chloride gas purification device, by setting a sealing plate, the rotation of the bolt drives the connecting frame to slide along the outer wall of the filter frame through the thread. The sliding of the connecting frame causes the positioning plate to engage with the sealing plate, realizing the installation operation of the sealing plate. Then, the hydrogen chloride gas undergoes preliminary filtration through the filter plate on the inner wall of the mounting frame.

[0015] 2. This hydrogen chloride gas purification device, by setting up a demister plate, allows hydrogen chloride gas to enter the demister frame through a connecting pipe. The demister plate demisters the hydrogen chloride gas, removing acid mist or particulate matter entrained in the gas. Then, the operator sprays dilute alkali solution from the spray nozzle through the inlet interface. The dilute alkali solution reacts with the hydrogen chloride gas in an acid-base neutralization reaction. Finally, the gas passes through graphite packing and is discharged from the exhaust port, thus achieving the purification operation of the hydrogen chloride gas. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the filter frame of this utility model;

[0018] Figure 3 This is a cross-sectional view of the spray tower of this utility model;

[0019] Figure 4 This is a cross-sectional view of the defogging frame of this utility model.

[0020] The markings in the diagram are as follows:

[0021] 1. Inlet pipe; 2. Graphite heat exchanger; 3. Filter frame; 4. Bolt; 5. Connecting bracket; 6. Positioning plate; 7. Sealing plate; 8. Mounting bracket; 9. Filter plate; 10. Connecting pipe; 11. Spray tower; 12. Demisting frame; 13. Demisting plate; 14. Partition plate; 15. Spray rack; 16. Liquid inlet port; 17. Spray nozzle; 18. Purification frame; 19. Graphite packing; 20. Exhaust port. Detailed Implementation

[0022] The following is in conjunction with the appendix Figure 1 - Figure 4 This application will be described in further detail.

[0023] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0024] This application discloses a hydrogen chloride gas purification device, including an inlet pipe 1. A graphite heat exchanger 2 is installed at one end of the inlet pipe 1. A filter frame 3 is connected to one end of the graphite heat exchanger 2. A bolt 4 is provided at the top of the filter frame 3. A connecting frame 5 is threaded onto the outer wall of the bolt 4. A positioning plate 6 is welded to one end of the connecting frame 5. A sealing plate 7 is fitted into the outer wall of the positioning plate 6. A mounting frame 8 is welded to the bottom end of the sealing plate 7. A filter plate 9 is fixedly connected to the inner wall of the mounting frame 8. A connecting pipe 10 is connected to one end of the filter frame 3. A filter plate 9 is welded to the outer wall of the connecting pipe 10. The spray tower 11 has a demister frame 12 fixedly connected to one end of the connecting pipe 10. A demister plate 13 is fixedly connected to the inner wall of the demister frame 12. A baffle plate 14 is welded to the top of the demister frame 12. A spray rack 15 is set on the inner wall of the spray tower 11 above the baffle plate 14. A liquid inlet 16 is fixedly connected to the outer wall of the spray rack 15. A spray nozzle 17 is connected to one end of the liquid inlet 16. A purification frame 18 is set above the spray rack 15. Graphite packing 19 is fixedly connected to the inner wall of the purification frame 18. An exhaust port 20 is fixedly connected to the top of the spray tower 11.

[0025] Based on the above structure, the bolt 4 rotates and drives the connecting frame 5 to slide along the outer wall of the filter frame 3 through the thread. The sliding of the connecting frame 5 drives the positioning plate 6 to engage with the sealing plate 7, realizing the installation operation of the sealing plate 7. Then, the hydrogen chloride gas undergoes preliminary filtration through the filter plate 9 on the inner wall of the mounting frame 8.

[0026] In one embodiment, the positioning plate 6 has an "L" shaped cross-section, and the sealing plate 7 forms a fixed structure with the filter frame 3 through the connecting frame 5 and the positioning plate 6.

[0027] In this embodiment, by setting a positioning plate 6 with an "L" shaped cross section, the bolt 4 rotates and drives the connecting frame 5 to slide along the outer wall of the filter frame 3 through the thread. The sliding of the connecting frame 5 drives the positioning plate 6 to fit into the sealing plate 7, thereby realizing the installation operation of the sealing plate 7.

[0028] In one embodiment, the mounting bracket 8 is provided in three sets, and the three sets of mounting bracket 8 are equally distributed along the bottom end of the sealing plate 7.

[0029] In this embodiment, by setting up three sets of mounting brackets 8, it is beneficial for hydrogen chloride gas to undergo multi-stage filtration through the filter plates 9 on the inner wall of the mounting brackets 8.

[0030] In one embodiment, the central axis of the demisting frame 12 coincides with the central axis of the spray tower 11.

[0031] In this embodiment, it is beneficial to achieve demisting and spray purification operations for hydrogen chloride gas.

[0032] In one embodiment, the defogging plate 13 is inclined and is circumferentially distributed at equal angles about the central axis of the defogging frame 12.

[0033] In this embodiment, by setting an inclined demister plate 13, it is beneficial for hydrogen chloride gas to enter the demister frame 12 through the connecting pipe 10, and for the demister plate 13 to perform demister operation on the hydrogen chloride gas, thereby removing acid mist or particulate matter entrained in the hydrogen chloride gas.

[0034] In one embodiment, the partition 14 is conical in shape.

[0035] In this embodiment, a conical baffle 14 is provided to prevent the dilute alkaline solution sprayed from the spray nozzle 17 from entering the demisting frame 12.

[0036] In one embodiment, six sets of spray nozzles 17 are provided, and the six sets of spray nozzles 17 are equidistantly distributed along the inner wall of the spray frame 15.

[0037] In this embodiment, the worker sprays the dilute alkali solution from the spray nozzle 17 through the liquid inlet 16. The dilute alkali solution and hydrogen chloride gas undergo an acid-base neutralization reaction. By setting up six sets of spray nozzles 17, it is easy for the dilute alkali solution and hydrogen chloride gas to react evenly.

[0038] In this embodiment, the hydrogen chloride gas purification device is used as follows: First, hydrogen chloride gas is injected into the graphite heat exchanger 2 to cool the high-temperature hydrogen chloride gas to a suitable temperature, preventing the subsequent absorption agent from volatilizing. Then, the hydrogen chloride gas enters the filter frame 3. The operator rotates the bolt 4, and the rotation of the bolt 4 drives the connecting frame 5 to slide along the outer wall of the filter frame 3 through the thread. The sliding of the connecting frame 5 causes the positioning plate 6 to engage with the sealing plate 7, realizing the installation operation of the sealing plate 7. Then, the hydrogen chloride gas undergoes preliminary filtration through the filter plate 9 on the inner wall of the mounting frame 8.

[0039] Next, hydrogen chloride gas enters the demister frame 12 through the connecting pipe 10, and the demister plate 13 performs a demister operation on the hydrogen chloride gas to remove acid mist or particulate matter entrained in the hydrogen chloride gas.

[0040] Finally, the staff sprayed the dilute alkali solution from the spray nozzle 17 through the liquid inlet 16. The dilute alkali solution and hydrogen chloride gas underwent an acid-base neutralization reaction. Then, the gas was discharged from the exhaust port 20 through the graphite packing 19, thus achieving the purification operation of the hydrogen chloride gas.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A hydrogen chloride gas purification device, characterized in that, The system includes an air inlet pipe (1), one end of which is fitted with a graphite heat exchanger (2). A filter frame (3) is connected to one end of the graphite heat exchanger (2). A bolt (4) is installed at the top of the filter frame (3). A connecting bracket (5) is threaded onto the outer wall of the bolt (4). A positioning plate (6) is welded to one end of the connecting bracket (5). A sealing plate (7) is fitted onto the outer wall of the positioning plate (6). A mounting bracket (8) is welded to the bottom of the sealing plate (7). A filter plate (9) is fixedly connected to the inner wall of the mounting bracket (8). A connecting pipe (10) is connected to one end of the filter frame (3). A spray tower (11) is welded to the outer wall of the connecting pipe (10). A demisting frame (12) is fixedly connected to one end of the connecting pipe (10). A demisting plate (13) is fixedly connected to the inner wall of the demisting frame (12). A partition plate (14) is welded to the top of the demisting frame (12). A spray rack (15) is provided above the partition plate (14) on the inner wall of the spray tower (11). A liquid inlet (16) is fixedly connected to the outer wall of the spray rack (15). A spray nozzle (17) is connected to one end of the liquid inlet (16). A purification frame (18) is provided above the spray rack (15). Graphite packing (19) is fixedly connected to the inner wall of the purification frame (18). An exhaust port (20) is fixedly connected to the top of the spray tower (11).

2. The hydrogen chloride gas purification device according to claim 1, characterized in that: The cross-section of the positioning plate (6) is "L" shaped, and the sealing plate (7) is fixed to the filter frame (3) through the connecting frame (5) and the positioning plate (6).

3. The hydrogen chloride gas purification device according to claim 1, characterized in that: The mounting bracket (8) is provided in three sets, and the three sets of mounting brackets (8) are distributed at equal intervals along the bottom end of the sealing plate (7).

4. The hydrogen chloride gas purification device according to claim 1, characterized in that: The central axis of the demisting frame (12) coincides with the central axis of the spray tower (11).

5. The hydrogen chloride gas purification device according to claim 1, characterized in that: The demister plate (13) is inclined in shape, and the demister plate (13) is distributed in a circular shape with equal angles about the central axis of the demister frame (12).

6. The hydrogen chloride gas purification device according to claim 1, characterized in that: The partition (14) is conical in shape.

7. The hydrogen chloride gas purification device according to claim 1, characterized in that: The spray nozzles (17) are provided in six groups, and the six groups of spray nozzles (17) are equidistantly distributed along the inner wall of the spray frame (15).

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