Waste gas recovery device for isooctane production

Abstract

The utility model discloses a waste gas recovery device for isooctane production, which comprises a treatment box, a gas inlet pipe is arranged at the bottom end of the side wall of the treatment box, gas guide mechanisms are arranged in the treatment box at equal intervals, a spraying assembly is arranged above the gas guide mechanisms in the treatment box, and the treatment box is provided with a drying box through a connecting pipe. Drying assemblies are equidistantly arranged in the drying box through a mounting mechanism, and a discharge pipe is arranged on the side wall, away from the connecting pipe, of the drying box. According to the treatment box, the flowing time of gas in the treatment box can be prolonged, full contact between the gas and spraying liquid can be ensured, meanwhile, part of the gas and the spraying liquid can be in contact absorption in the through holes of the gas guide mechanism, contact reaction can also be performed, full contact reaction is ensured, the absorption effect is ensured, and the service life is prolonged. And the spraying assembly is matched, so that gas can be conveniently reacted and absorbed, subsequent operations such as drying are facilitated, and subsequent waste gas recovery operation is further facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of isooctane waste gas recovery, in particular to a waste gas recovery device for isooctane production. Background Art

[0002] Isooctane is a saturated alkane, which is generally made from unsaturated hydrocarbons such as butadiene, octene, etc. The raw materials need to be hydrogenated. After the reaction is completed, there will still be residual raw materials in the waste gas. In order to maximize the utilization of raw materials and reduce production costs, the waste gas needs to be recovered, purified and reused. There are also many waste gas recovery devices for isooctane production on the market.

[0003] However, the existing waste gas recovery devices for isooctane production have certain defects in actual use. When the waste gas from isooctane production is subjected to acid treatment, most of them are treated and purified by spraying alkali absorption. The gas passes from bottom to top, and during the treatment, the time in the spray tower is short, which affects the effect of the contact reaction and causes incomplete absorption. Utility Model Content

[0004] The utility model aims to provide a waste gas recovery device for isooctane production to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a waste gas recovery device for isooctane production, comprising a treatment box, an air inlet pipe is provided at the bottom end of the side wall of the treatment box, an air guide mechanism is equidistantly provided inside the treatment box, and a spray assembly is provided inside the treatment box above the air guide mechanism, a drying box is provided in the treatment box through a connecting pipe, drying assemblies are equidistantly provided in the drying box through an installation mechanism, and an exhaust pipe is provided on the side wall of the drying box away from the connecting pipe.

[0006] Preferably, in order to increase the time that the gas flows inside and ensure sufficient contact with the spray liquid, the gas guide mechanism includes guide plates that are equidistantly and obliquely arranged inside the processing box, the guide plates are equidistantly and staggered inside the processing box, and through holes are equidistantly opened on the guide plates, leakage holes are equidistantly opened at the bottom of the through holes, and the guide plates are connected to the processing box by a snap-fit ​​assembly.

[0007] Preferably, in order to facilitate its installation and subsequent disassembly and replacement operations, the clamping assembly includes a clamping block arranged at one end of the guide plate at a high point, and the clamping assembly also includes a fixed plate arranged inside the processing box, and a clamping slot matching the clamping block is opened on the fixed plate.

[0008] Preferably, in order to facilitate the extraction and spraying of the spray liquid and its contact and reaction with the exhaust gas, the spray assembly is arranged in a liquid storage tank under the treatment box, and an extraction pipe is provided on the liquid storage tank. The extraction pipe passes through the treatment box and extends to the interior where an annular nozzle is provided, and nozzles are equidistantly arranged under the annular nozzle.

[0009] Preferably, in order to dry the treated gas and facilitate subsequent recovery operations, the drying assembly includes mounting frames equidistantly arranged inside the drying box, and drying plates are provided in the mounting frames.

[0010] Preferably, in order to facilitate the assembly, disassembly and replacement of the drying components, the installation mechanism includes mounting plates equidistantly arranged inside the drying box, a slide groove is provided in the mounting plate, a slide plate is slidably provided in the slide groove, and the slide plate is fixedly connected to the mounting frame.

[0011] Preferably, in order to ensure stability during use, prevent sliding, and facilitate subsequent disassembly and removal operations, the mounting mechanism also includes a positioning hole formed on the mounting plate, and a positioning column matching the slide plate is provided in the positioning hole.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] (1) The gas guide mechanism can increase the time for the gas to flow inside the treatment box, ensuring sufficient contact with the spray liquid. At the same time, part of the gas and the spray liquid can also be contacted and absorbed in the through hole of the gas guide mechanism, and a contact reaction can also be carried out, ensuring sufficient contact reaction and absorption effect. The spray assembly can facilitate the reaction and absorption of the gas, facilitate subsequent drying and other operations, and thus facilitate subsequent waste gas recovery operations;

[0014] (2) The treated gas can be dried again through the provided drying component, which is convenient for the subsequent recovery of the waste gas. It can be easily assembled and used with the installation mechanism to ensure stability during use and the drying effect. It can also be easily disassembled and replaced after a period of use to ensure the drying effect of the drying plate. The replacement is relatively simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of a waste gas recovery device for isooctane production proposed by the utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of a treatment box in a waste gas recovery device for isooctane production proposed by the utility model;

[0017] Figure 3 This is a structural schematic diagram of a gas guide mechanism in a waste gas recovery device for isooctane production proposed by the utility model;

[0018] Figure 4 This is a schematic diagram of the internal structure of a drying box in a waste gas recovery device for isooctane production proposed by the utility model;

[0019] Figure 5The utility model provides a schematic structural diagram of an installation mechanism and a drying component in a waste gas recovery device for isooctane production.

[0020] In the figure: 1. treatment box; 2. liquid storage box; 3. drying box; 4. air inlet pipe; 5. extraction pipe; 6. connecting pipe; 7. discharge pipe; 8. annular nozzle; 9. nozzle; 10. guide plate; 11. fixing plate; 12. slot; 13. block; 14. through hole; 15. leakage hole; 16. mounting frame; 17. drying plate; 18. mounting plate; 19. slide plate; 20. slide groove; 21. positioning column; 22. positioning hole. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-Figure 5 The utility model provides an embodiment: a waste gas recovery device for isooctane production, comprising a treatment box 1 for recovering and treating the waste gas produced by isooctane, an air inlet pipe 4 for conveniently conveying and introducing the waste gas is installed on the side wall thereof, and a spray assembly for convenient treatment and purification is arranged inside, comprising a liquid storage tank 2 arranged at the bottom of the treatment box 1, which is connected to the bottom end of the treatment box 1 and is connected to an extraction pipe 5 through a machine pump, the extraction pipe 5 passes through the treatment box 1 and extends to the inside where an annular nozzle 8 is provided, and nozzles 9 are equidistantly arranged under the annular nozzle 8, which can facilitate spray purification treatment, a relatively mature technology, which will not be described in detail here, and a drying box 3 is installed at the top of the side wall of the treatment box 1 through a connecting pipe 6, which can facilitate drying of the gas and subsequent recovery operations, and an exhaust pipe 7 is installed on the side wall of the drying box 3 away from the connecting pipe 6, which is convenient for exhausting the dried gas.

[0023] See also Figure 1-Figure 5 In order to increase the time of the gas in the treatment box 1, so that it can fully contact and react with the spray liquid to ensure the purification effect, the guide plates 10 of the gas guide mechanism are installed equidistantly and obliquely inside the treatment box 1, and the number of the guide plates 10 can be four groups, which are staggered as shown in FIG. Figure 2As shown, the guide plate 10 is provided with through holes 14 at equal intervals, and leak holes 15 are provided in the through holes 14, so that part of the spray liquid can be dripped down to facilitate the contact reaction with the gas. In order to facilitate its assembly, a fixing plate 11 of a snap-fit ​​assembly is welded on the inner wall of the processing box 1, and a card slot 12 is provided on the fixing plate 11, so that a card block 13 at one end of the guide plate 10 can be plugged in conveniently. As for the shapes of the card slot 12 and the card block 13, the cross-section can be T-shaped, which can facilitate plug-in and sliding and avoid falling off. The end thereof can be provided with a limiting device (such as a limiting column and a limiting hole) to avoid sliding during use.

[0024] See also Figure 1-Figure 5 In order to facilitate the drying of the recovered gas, the drying box 3 is provided with installation frames 16 of drying components at equal intervals, and the number can be two groups, and the installation frame 16 is embedded with a drying plate 17 (the drying can be carried out by soda lime desiccant, or other desiccant, which is a relatively mature technology and will not be described here). In order to facilitate its assembly and replacement after a period of subsequent use, slide plates 19 of the installation mechanism are welded at both ends of the installation frame 16, and a mounting plate 18 is welded on the inner wall of the drying box 3, and a slide groove 20 is provided inside the installation plate 18 for facilitating the sliding of the slide plate 19. In order to ensure that there is no sliding during use, a positioning hole 22 is provided at the end of the installation plate 18, and a positioning column 21 is inserted in the positioning hole 22 to limit the slide plate 19 and prevent it from sliding.

[0025] Working principle: When the utility model is in use, the waste gas produced by isooctane is introduced through the air inlet pipe 4, the spray liquid inside the liquid storage tank 2 is extracted to the extraction pipe 5 through the machine pump, and then sprayed out through the nozzle 9 under the annular nozzle 8, and the gas flows upward through the guide plate 10, increasing the time inside the treatment box 1, so as to better contact with the spray liquid, and at the same time, part of the spray liquid enters the through hole 14 of the guide plate 10, drips through the leak hole 15, and can react with the gas to ensure sufficient and uniform spray treatment, and at the same time a small amount of gas rises through the leak hole 15, and when rising, it also contacts with the spray liquid in the through hole 14. The contact reaction ensures that the treatment is sufficient and thorough, and the treated gas enters the drying box 3 through the connecting pipe 6, and the gas can be dried by the drying plate 17, and then discharged through the exhaust pipe 7, which is convenient for subsequent recycling operations. When the drying plate 17 needs to be replaced, the positioning column 21 can be taken out from the positioning hole 22, and the limit of the slide plate 19 is lost. The installation frame 16 can be taken out, which is convenient for the replacement operation of the drying plate 17. After replacement, the slide plate 19 is inserted into the slide groove 20, and the positioning column 21 is inserted into the positioning hole 22 to complete the positioning, which does not affect the subsequent drying use.

[0026] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A waste gas recovery device for isooctane production, comprising a treatment box (1), characterized in that: An air inlet pipe (4) is provided at the bottom end of the side wall of the processing box (1), an air guide mechanism is equidistantly provided inside the processing box (1), and a spray assembly is provided inside the processing box (1) above the air guide mechanism. The processing box (1) is provided with a drying box (3) via a connecting pipe (6), and drying assemblies are equidistantly provided inside the drying box (3) via a mounting mechanism. An exhaust pipe (7) is provided on the side wall of the drying box (3) away from the connecting pipe (6).

2. The waste gas recovery device for isooctane production according to claim 1, characterized in that: The air guide mechanism comprises guide plates (10) which are arranged equidistantly and obliquely inside the processing box (1); the guide plates (10) are arranged equidistantly and staggered inside the processing box (1); through holes (14) are opened equidistantly on the guide plates (10); leakage holes (15) are opened equidistantly at the bottom ends of the through holes (14); and the guide plates (10) are connected to the processing box (1) via a snap-fit ​​assembly.

3. The waste gas recovery device for isooctane production according to claim 2, characterized in that: The clamping assembly comprises a clamping block (13) arranged at one end of the guide plate (10), and the clamping assembly also comprises a fixing plate (11) arranged inside the processing box (1), and a clamping groove (12) matching the clamping block (13) is formed on the fixing plate (11).

4. The waste gas recovery device for isooctane production according to claim 3, characterized in that: The spray assembly is arranged on a liquid storage tank (2) under the processing tank (1); an extraction pipe (5) is arranged on the liquid storage tank (2); the extraction pipe (5) passes through the processing tank (1) and extends to an annular nozzle (8) arranged inside; nozzles (9) are arranged at equal distances below the annular nozzle (8).

5. The waste gas recovery device for isooctane production according to claim 4, characterized in that: The drying assembly comprises installation frames (16) which are arranged at equal distances inside the drying box (3), and drying plates (17) are arranged inside the installation frames (16).

6. The waste gas recovery device for isooctane production according to claim 5, characterized in that: The mounting mechanism comprises mounting plates (18) equidistantly arranged inside the drying box (3), a slide groove (20) being provided inside the mounting plate (18), a slide plate (19) being slidably arranged inside the slide groove (20), and the slide plate (19) being fixedly connected to the mounting frame (16).

7. The waste gas recovery device for isooctane production according to claim 6, characterized in that: The mounting mechanism further comprises a positioning hole (22) formed on the mounting plate (18), wherein a positioning column (21) matching the slide plate (19) is arranged in the positioning hole (22).

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