Automatic recovery device for nitrate conversion condensed acid

Abstract

The utility model relates to the technical field of chemical engineering, in particular to an automatic recovery device for nitrate conversion condensed acid, which comprises a body, a gas outlet and a feed port are arranged on the side surface of the body, a cover plate is arranged at the top of the body, a sleeve is arranged on the cover plate, and a plurality of through holes are arranged on the side surface of the sleeve; the movable rod penetrates through the sleeve and extends into the body, and an elastic pin matched with the through hole is arranged on the movable rod; the two inserting plates are inserted into the two opposite side faces of the body respectively; one end of the baffle plate is hinged to the side face of the insertion plate, and a strip-shaped hole is formed in the end face of the other end of the baffle plate; the baffle plates on the two inserting plates are staggered from top to bottom; and the hoop is arranged on the movable rod, is positioned below the strip-shaped hole of the baffle plate and is used for supporting the baffle plate. The baffle plates are arranged in the alkali absorption tower in a staggered manner, and the angles of the baffle plates can be adjusted through the movable rods or the hoops, so that the separation of condensed acid is enhanced, the condensed acid can be recycled before entering the alkali absorption tower, and air pollution is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical industry, in particular to an automatic recovery device for condensed acid converted from nitrate salts. Background Art

[0002] Sodium nitrate is produced from the mother liquor of sodium nitrite and nitric acid. A large amount of high-concentration nitrogen oxide gas is produced during the production process. The high-concentration nitrogen oxide gas enters the alkali absorption device through the outlet of the conversion device. The nitrogen oxide forms part of condensed acid in the pipeline as the temperature difference of the gas changes. The condensed acid enters the alkali absorption device and reacts with the alkali solution to produce high-concentration nitrogen oxide again. The nitrogen oxide emission is high or exceeds the standard. In order to reduce the emission of pollutants, the condensed acid formed at the outlet of the conversion device before entering the alkali absorption tower can be extracted and recycled to prevent the phenomenon of excessive production tail gas. The existing condensed acid recovery device can be recovered by setting a baffle, but the baffle is usually fixed inside the recovery device and its inclination cannot be adjusted. Utility Model Content

[0003] The utility model aims to overcome the shortcomings of the prior art and proposes a device for automatically recovering condensed acid from nitrate conversion, which is convenient for adjusting the inclination angle of the baffle.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] An automatic recovery device for condensed acid from nitrate conversion, comprising:

[0006] The main body has an air outlet and a feed inlet on the side, a liquid outlet on the bottom, a cover plate on the top, a sleeve on the cover plate, and a plurality of through holes on the side of the sleeve;

[0007] A movable rod passes through the sleeve and extends into the interior of the body, and an elastic pin matching the through hole is arranged on the movable rod;

[0008] Two plug-in boards are provided and are respectively plugged into two opposite sides of the body;

[0009] The baffle plate has one end hinged to the side of the plug plate, and a strip hole is provided on the end surface of the other end, and the movable rod passes through the strip hole; the baffle plates on the two plug plates are arranged alternately from top to bottom;

[0010] The clamp is arranged on the movable rod and is located below the strip hole of the baffle plate, and is used for supporting the baffle plate.

[0011] The above technical solution can adjust the inclination angles of several baffles at the same time by adjusting the movable rod up and down, and can also adjust the inclination angle of a baffle individually by adjusting the position of the clamp. At the same time, the baffle is installed on the plug-in plate, and the plug-in plate is plugged into the side of the body, which is convenient for disassembly, assembly and maintenance.

[0012] Furthermore, handrails are provided on the sides of the plug board for easy operation.

[0013] Furthermore, a rotating shaft is provided at one end of the baffle plate, and a connecting ear is provided on the plug plate. The rotating shaft is inserted into the connecting ear, so that the baffle plate can rotate relative to the plug plate.

[0014] Furthermore, a slot is provided on the side of the body, and the edges of the front and rear sides of the plug board are protrusions, and the protrusions are inserted into the slots in the body to complete the plug-in connection between the plug board and the body.

[0015] Furthermore, the length of the movable rod is greater than the sum of the height of the body and the length of the sleeve, which facilitates the insertion of the movable rod into the sleeve.

[0016] Furthermore, the movable rod is sealed with the cover plate on the top of the body to prevent gas from flowing out.

[0017] Furthermore, the liquid outlet at the bottom of the body is connected to the collection tank through a pipeline, which is convenient for collecting materials.

[0018] Technical effects of the utility model:

[0019] Compared with the prior art, the utility model provides an automatic recovery device for condensed acid converted from nitrate, which has a plurality of staggered baffles inside. The angles of the baffles can be adjusted by movable rods or clamps, thereby enhancing the separation of the condensed acid and enabling the condensed acid to be recovered before entering the alkali absorption tower, thereby avoiding air pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure principle of the utility model of the automatic recovery device for nitrate conversion condensed acid;

[0021] Figure 2 This is a schematic diagram of the structure principle of the plug plate, baffle plate, movable rod and clamp of the utility model;

[0022] Figure 3 This is a top view of the plug board of the utility model;

[0023] Figure 4 This is a schematic diagram of the structural principle of the baffle of the utility model;

[0024] Figure 5 This is a transverse cross-sectional view of the utility model body;

[0025] Figure 6 It is a schematic diagram of the structural principle of the inclined state of the baffle of the automatic recovery device for condensed acid converted from nitrate of the utility model.

[0026] In the figure, 1, main body; 2, air outlet; 3, feed inlet; 4, liquid outlet; 5, sleeve; 6, through hole; 7, movable rod; 8, elastic pin; 9, plug plate; 10, baffle; 11, strip hole; 12, clamp; 13, handrail; 14, connecting ear; 15, slot. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model is clearly and completely described below in conjunction with the accompanying drawings of the specification.

[0028] Embodiment 1:

[0029] like Figure 1 As shown, the present embodiment involves an automatic recovery device for condensed acid from nitrate conversion, comprising a main body 1, a movable rod 7, a plug plate 9, a baffle 10 and a clamp 12.

[0030] like Figure 1 As shown, the body 1 is provided with an air outlet 2 and a feed port 3 on the side, a liquid outlet 4 on the bottom, a cover plate on the top, a sleeve 5 on the cover plate, and a plurality of through holes 6 on the side of the sleeve 5. The liquid outlet 4 can be connected to the collection tank through a pipeline to facilitate the collection of materials.

[0031] like Figure 1 As shown, the movable rod 7 passes through the sleeve 5 and extends to the inside of the body 1, and is sealed with the cover plate on the top of the body 1 to prevent gas from flowing out. The movable rod 7 is provided with an elastic pin 8 that matches the through hole 6. The length of the movable rod 7 is greater than the sum of the height of the body 1 and the length of the sleeve 5, so that the movable rod 7 can be inserted into the sleeve 5 when the cover plate is closed.

[0032] like Figure 1 As shown, two plug boards 9 are provided, which are respectively plugged into two opposite side surfaces of the body 1 , and a handrail 13 is provided on the side of each plug board 9 for easy disassembly, assembly and maintenance.

[0033] like Figure 1 and 4 As shown, one end of the baffle plate 10 is hinged to the side of the plug plate 9, and a strip hole 11 is provided on the other end surface. The movable rod 7 passes through the strip hole 11. The length of the strip hole 11 is greater than the outer diameter of the movable rod 7, so that the movable rod 7 can move left and right in the strip hole 11. Figure 2 As shown, in this embodiment, two baffles 10 are arranged on each plug plate 9, and the baffles 10 on the two plug plates 9 are arranged alternately from top to bottom. In this embodiment, the inclination angles of all baffles 10 can be adjusted simultaneously by adjusting the movable rod 7 up and down.

[0034] Specifically, if Figure 2 and 4As shown, a rotating shaft is provided at one end of the baffle plate 10, and a connecting ear 14 is provided on the plug plate 9. The rotating shaft is inserted into the connecting ear 14, so that the baffle plate 10 can rotate relative to the plug plate 9. Figure 4 and 5 As shown, a slot 15 is provided on the side of the body 1 , and the edges of the front and rear sides of the plug board 9 are protrusions. The protrusions are inserted into the slot 15 in the body 1 to complete the plugging of the plug board 9 and the body 1 .

[0035] like Figure 2 As shown, the clamp 12 is arranged on the movable rod 7 and is located below the strip hole 11 of the baffle 10 to support the baffle 10. In addition, the inclination angle of a baffle 10 can be adjusted individually by adjusting the position of the clamp 12.

[0036] Working principle: When installing the utility model, remove the cover plate, install the movable rod 7 on several baffles 10, and position and support them through the clamp 12, then insert the plug plates 9 on both sides into the slots 15 on the side of the body 1 at the same time, and finally cover the cover plate. During this process, the movable rod 7 passes through the sleeve 5. After adjusting the position of the movable rod 7, the elastic pin 8 is inserted into the corresponding through hole 6 to fix the movable rod 7. The movable rod 7 can be adjusted up and down to adjust the inclination angle of all baffles 10 at the same time, such as Figure 6 As shown, it is better to carry out material recovery. When disassembling the baffle plate 10, only the cover plate needs to be removed, and then the inserting plate 9 is lifted upwards, which is convenient and quick.

[0037] The utility model can pump the recovered condensed acid into a nitric acid tank through a collecting tank for conversion and reuse, thereby achieving the purpose of recycling the condensed acid and reducing pollutant emissions.

[0038] The above-mentioned specific implementation methods are only specific cases of the present utility model. The patent protection scope of the present utility model includes but is not limited to the above-mentioned specific implementation methods. Any appropriate changes or modifications made to them by ordinary technicians in the relevant technical field in accordance with the claims of the present utility model shall fall within the patent protection scope of the present utility model.

Claims

1. An automatic recovery device for condensed acid from nitrate conversion, characterized in that: include: A body (1) is provided with an air outlet (2) and a feed inlet (3) on the side, a liquid outlet (4) on the bottom, a cover plate on the top, a sleeve (5) on the cover plate, and a plurality of through holes (6) on the side of the sleeve (5); A movable rod (7) passes through the sleeve (5) and extends into the interior of the body (1); the movable rod (7) is provided with an elastic pin (8) matching the through hole (6); Two plug boards (9) are provided and are respectively plugged into two opposite side surfaces of the body (1); The baffle plate (10) has one end hinged to the side of the plug plate (9), and a strip hole (11) is provided on the end surface of the other end, and the movable rod (7) passes through the strip hole (11); the baffle plates (10) on the two plug plates (9) are arranged alternately from top to bottom; The clamp (12) is arranged on the movable rod (7) and is located below the strip hole (11) of the baffle plate (10) and is used to support the baffle plate (10).

2. The automatic recovery device for condensed acid from nitrate conversion according to claim 1, characterized in that: A handrail (13) is provided on the side of the plug board (9).

3. The automatic recovery device for condensed acid from nitrate conversion according to claim 1, characterized in that: A rotating shaft is arranged at one end of the baffle plate (10), a connecting ear (14) is arranged on the plug plate (9), and the rotating shaft is inserted into the connecting ear (14).

4. The automatic recovery device for condensed acid from nitrate conversion according to claim 1, characterized in that: A slot (15) is provided on the side of the body (1), and the edges of the front and rear sides of the plug board (9) are protrusions, which are inserted into the slot (15) in the body (1).

5. The automatic recovery device for condensed acid from nitrate conversion according to claim 1, characterized in that: The length of the movable rod (7) is greater than the sum of the height of the body (1) and the length of the sleeve (5).

6. The automatic recovery device for condensed acid from nitrate conversion according to claim 1, characterized in that: The movable rod (7) is sealed with the cover plate on the top of the body (1).

7. The automatic recovery device for condensed acid converted from nitrate according to any one of claims 1 to 6, characterized in that: The liquid outlet (4) at the bottom of the body (1) is connected to the collection tank through a pipeline.

8. The automatic recovery device for condensed acid from nitrate conversion according to claim 7, characterized in that: Two baffles (10) are arranged on each of the insert plates (9).

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