Oil and ammonia water separation device for nitric acid production

Abstract

The utility model provides an oil and ammonia water separation device for nitric acid production. The oil and ammonia water separation device comprises a bearing frame, a supporting plate is fixedly mounted on the bearing frame, a mounting hole is formed in the supporting plate, a treatment box with an open top is fixedly mounted on the supporting plate and located in the mounting hole, and a top cover is fixedly mounted at the top of the treatment box through screws; a feeding pipe is fixedly installed at the top of the outer side wall of the treatment box, and a discharging opening is formed in the bottom of the treatment box. When grease left in the treatment box is cleaned, the plugging head is detached, plugging of the discharging opening by the plugging head is canceled, the grease left in the treatment box is discharged from the discharging opening, the cleaning mechanism is arranged, and the inner wall of the treatment box is scraped and cleaned through the cleaning mechanism during the period, so that the grease left in the treatment box is cleaned. And therefore, the grease attached to the inner wall of the treatment box is gathered, the grease attached to the inner wall of the treatment box can be more completely discharged through the discharging opening, and discharging of the grease is facilitated.

Description

Technical Field

[0001] This utility model relates to the technical field of nitric acid production equipment, specifically to an oil and ammonia water separation device for nitric acid production. Background Technology

[0002] Nitric acid is a monoprotic inorganic strong acid with strong oxidizing and corrosive properties; it is one of the six major inorganic strong acids and an important chemical raw material. Its aqueous solution is commonly known as nitric acid solution or ammonia nitrogen solution, and it can be used in industry to make fertilizers, pesticides, explosives, dyes, etc. In organic chemistry, a mixture of concentrated nitric acid and concentrated sulfuric acid is an important nitrating reagent.

[0003] Nitric acid production generates a mixture of oil and ammonia, which needs to be separated during the process. Currently, distillation is one of the common methods for separating the oil and ammonia used in nitric acid production, as shown in the attached diagram of the instruction manual. Figure 5 The diagram shows a schematic of a prior art oil and ammonia water separation device for nitric acid production, including a support frame, a support plate fixedly mounted on the support frame, and a processing tank fixedly mounted on the support plate. A feed pipe is fixedly mounted at the top of the outer wall of the processing tank, and a discharge port is opened at the bottom of the processing tank. A sealing head for sealing the discharge port is detachably mounted on the processing tank. A mounting frame is fixedly mounted on the support frame and located on one side of the support plate. A condenser tube is fixedly mounted on the mounting frame, with a vent pipe fixedly mounted at one end of the condenser tube and the other end of the vent pipe connected to a top cover. A separation tube is fixedly mounted on the mounting frame, with the other end of the condenser tube connected to the separation tube. A heating rod is installed inside the processing tank. During operation, the oil and ammonia mixture is fed into the processing tank through the feed pipe. The heating rod is activated, heating the mixture until it boils. The ammonia vapor then enters the condenser through the vent pipe, where it is condensed into liquid and flows into the separation tube. The gas exits through the exhaust pipe at the top of the separation tube, while the liquid exits through the outlet at the bottom. Oil residue remains in the mixture, forming grease. After separation, the sealing head is removed from the discharge port, allowing the remaining grease to drain. This achieves efficient separation of the oil and ammonia mixture. However, in practical use, the following drawbacks exist:

[0004] Oil residue in the oil and ammonia mixture forms grease inside the treatment tank. Because the grease adheres to the inner wall of the treatment tank, the sealing head is no longer needed to block the discharge port. When the grease is discharged from the treatment tank, the grease adhering to the inner wall of the treatment tank is not discharged completely, which is not conducive to the discharge of grease.

[0005] Therefore, this application proposes an oil and ammonia water separation device for nitric acid production. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides an oil and ammonia water separation device for nitric acid production, which solves the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] An oil and ammonia water separation device for nitric acid production includes a support frame, a support plate fixedly installed on the support frame, mounting holes on the support plate, and a processing box with an open top fixedly installed on the support plate and within the mounting holes. A top cover is fixedly installed on the top of the processing box by screws.

[0009] A feed pipe is fixedly installed at the top of the outer wall of the processing box, and a discharge port is opened at the bottom of the processing box. A sealing head for sealing the discharge port is detachably installed on the processing box. A mounting frame is fixedly installed on the support frame and on one side of the support plate. A condenser pipe is fixedly installed on the mounting frame. A vent pipe is fixedly installed at one end of the condenser pipe and connected to it. The other end of the vent pipe is connected to the top cover. A separation pipe is fixedly installed on the mounting frame, and the other end of the condenser pipe is connected to the separation pipe.

[0010] A heating rod is installed inside the processing box, and a cleaning mechanism is installed on the top cover inside the processing box, which is used to scrape and clean the inner wall of the processing box.

[0011] Furthermore: the cleaning mechanism includes a vertically oriented rotating rod rotatably mounted on the top cover via a sealed bearing. The bottom end of the rotating rod extends into the processing box and is fixedly mounted with a connecting plate. The other end of the connecting plate is fixedly mounted with a scraper that fits against the inner wall of the processing box. A motor for rotating the rotating rod is fixedly mounted on the top cover by screws.

[0012] Furthermore: the sealing head includes a sealing cover threadedly installed at the bottom of the processing box, and a sealing block is fixedly installed inside the sealing cover. When the sealing cover is threadedly connected to the processing box, the sealing cover seals the discharge port, and the sealing block extends into the discharge port.

[0013] Furthermore: the heating rod is inserted into the processing box along the discharge port, and the heating rod is fixedly connected to the sealing block.

[0014] Furthermore: a collection bottle with an open top is placed on the mounting bracket below the liquid outlet at the bottom of the separation tube.

[0015] Furthermore, a gas guide pipe connected to the interior is fixedly installed at the top of the outer wall of the processing box, and the other end of the gas guide pipe is connected to an external inert gas conveying device.

[0016] Furthermore, valves are fixedly installed on both the feed pipe and the air guide pipe.

[0017] This invention provides an oil and ammonia water separation device for nitric acid production. Compared with the prior art, it has the following advantages:

[0018] 1. When cleaning the grease remaining in the treatment tank, the sealing head is disassembled to remove the sealing head from the discharge port. The grease remaining in the treatment tank is discharged from the discharge port. By setting up a cleaning mechanism, the inner wall of the treatment tank is scraped and cleaned, so that the grease adhering to the inner wall of the treatment tank accumulates, which helps to make the grease adhering to the inner wall of the treatment tank more completely discharged through the discharge port, thus facilitating the discharge of grease.

[0019] 2. By setting the heating rod to be inserted into the processing box along the discharge port and fixedly connected to the sealing block, when the sealing head is removed, the discharge port is unsealed, and the residual grease in the processing box is cleaned, the heating rod can be pulled out of the processing box, which facilitates the cleaning of the surface of the heating rod, is beneficial to the subsequent use of the heating rod, and improves the heating efficiency.

[0020] 3. By setting up a collection bottle, it is easy to collect the liquid discharged through the outlet at the bottom of the separator tube; by setting up a valve, it is easy to open or close the feed tube and the air guide tube. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 A three-dimensional structural schematic diagram of the present invention is shown;

[0023] Figure 2 A schematic diagram of the valve installation structure of this utility model is shown;

[0024] Figure 3 A schematic diagram of the installation structure of the heating rod of this utility model is shown;

[0025] Figure 4 This utility model illustrates Figure 3 Enlarged view of point A in the middle;

[0026] Figure 5 A schematic diagram of an oil and ammonia water separation device for nitric acid production in the prior art is shown.

[0027] The following components are shown in the diagram: 1. Support frame; 11. Support plate; 12. Mounting hole; 13. Processing box; 14. Top cover; 15. Feed pipe; 16. Discharge port; 17. Sealing head; 171. Sealing cover; 172. Sealing block; 18. Mounting frame; 2. Condenser pipe; 21. Vent pipe; 3. Separator pipe; 4. Heating rod; 5. Cleaning mechanism; 51. Rotating rod; 52. Connecting plate; 53. Scraper; 54. Motor; 6. Collection bottle; 7. Air guide pipe; 8. Valve. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0029] Example 1

[0030] To address the technical problems in the background section, the following oil and ammonia water separation device for nitric acid production is provided:

[0031] Combination Figures 1-4 As shown, the oil and ammonia water separation device for nitric acid production provided by this utility model includes a support frame 1, a support plate 11 fixedly installed on the support frame 1, an installation hole 12 opened on the support plate 11, a processing box 13 with an open top fixedly installed on the support plate 11 and located in the installation hole 12, and a top cover 14 fixedly installed on the top of the processing box 13 by screws, which facilitates the disassembly of the top cover 14.

[0032] A feed pipe 15 is fixedly installed at the top of the outer side wall of the processing box 13. A discharge port 16 is opened at the bottom of the processing box 13. A sealing head 17 for sealing the discharge port 16 is detachably installed on the processing box 13. An installation frame 18 is fixedly installed on the support frame 1 and on one side of the support plate 11. A condenser pipe 2 is fixedly installed on the installation frame 18. A vent pipe 21 connected to one end of the condenser pipe 2 is fixedly installed. The other end of the vent pipe 21 is connected to the top cover 14. A separation pipe 3 is fixedly installed on the installation frame 18. Specifically, the top of the separation pipe 3 is fixedly connected to the interior of the separation pipe, and the bottom is fixedly connected to the interior of the separation pipe. The other end of the condenser pipe 2 is connected to the separation pipe 3.

[0033] The processing box 13 is equipped with a heating rod 4. Specifically, the heating rod 4 has a built-in electric heating wire. When in use, the heating rod 4 is powered and converts electrical energy into heat energy, thereby achieving the heating effect on the inside of the processing box 13. A cleaning mechanism 5 is installed on the top cover 14 and inside the processing box 13, which is used to scrape and clean the inner wall of the processing box 13.

[0034] In operation, the oil and ammonia mixture is fed into the processing tank 13 through the feed pipe 15. The heating rod 4 is then turned on, heating the oil and ammonia mixture in the processing tank 13 until it boils. The ammonia forms water vapor, which enters the condenser 2 through the vent pipe 21. The condenser 2 condenses the water vapor into liquid, which then flows into the separator 3. At this point, the gas is discharged through the exhaust pipe at the top of the separator 3, and the liquid is discharged through the liquid outlet at the bottom of the separator 3. Oil residue remains in the oil and ammonia mixture within the processing tank 13, forming grease. This process effectively treats the oil and ammonia mixture. The separation effect of ammonia water mixture: After the separation is completed, when cleaning the grease remaining in the treatment tank 13, the sealing head 17 is disassembled and the sealing head 17 is removed from the discharge port 16. The grease remaining in the treatment tank 13 is discharged from the discharge port 16. By setting up the cleaning mechanism 5, the inner wall of the treatment tank 13 is scraped and cleaned by the cleaning mechanism 5, so that the grease adhering to the inner wall of the treatment tank 13 accumulates, which is conducive to the more complete discharge of the grease adhering to the inner wall of the treatment tank 13 through the discharge port 16, thus facilitating the discharge of grease.

[0035] Example 2

[0036] like Figures 1-4 As shown, based on the above embodiments, this embodiment further provides the following:

[0037] In this embodiment, the cleaning mechanism 5 includes a vertically oriented rotating rod 51 rotatably mounted on the top cover 14 via a sealed bearing. The bottom end of the rotating rod 51 extends into the processing box 13 and is fixedly mounted with a connecting plate 52. The other end of the connecting plate 52 is fixedly mounted with a scraper 53 that fits against the inner wall of the processing box 13. A motor 54 for rotating the rotating rod 51 is fixedly mounted on the top cover 14 by screws. This device is powered by an external power source. When in use, the motor 54 is turned on, and the output shaft of the motor 54 rotates, thereby driving the rotating rod 51 to rotate on the top cover 14. The connecting plate 52 rotates around the rotating rod 51, thereby driving the scraper 53 to rotate around the rotating rod 51. Since the scraper 53 fits against the inner wall of the processing box 13, the inner wall of the processing box 13 can be scraped and cleaned.

[0038] In this embodiment, the sealing head 17 includes a sealing cover 171 threadedly installed at the bottom of the processing box 13. Specifically, the bottom of the processing box 13, located outside the discharge port 16, has an external thread. The sealing cover 171 can engage with the external thread. A sealing block 172 is fixedly installed inside the sealing cover 171. When the sealing cover 171 is threadedly connected to the processing box 13, the sealing cover 171 seals the discharge port 16, and the sealing block 172 extends into the discharge port 16. It is worth noting that when the sealing block 172 extends into the discharge port 16, the sealing block 172... The outer wall of the sealing head 17 is in contact with the inner wall of the discharge port 16. When using the sealing head 17 to seal the discharge port 16, the sealing cover 171 is rotated to engage with the external thread on the processing box 13. When the sealing cover 171 is threadedly connected to the processing box 13, the discharge port 16 can be sealed by the sealing cover 171. The sealing block 172 is set to seal the discharge port 16 by the sealing cover 171, and the sealing block 172 extends into the discharge port 16. The outer wall of the sealing block 172 is in contact with the inner wall of the discharge port 16, which further improves the sealing effect of the discharge port 16.

[0039] In this embodiment, the heating rod 4 is inserted into the processing box 13 along the discharge port 16, and the heating rod 4 is fixedly connected to the sealing block 172. By setting the heating rod 4 to be inserted into the processing box 13 along the discharge port 16 and fixedly connected to the sealing block 172, when the sealing head 17 is disassembled, the discharge port 16 is unsealed, and the residual grease in the processing box 13 is cleaned, the heating rod 4 can be pulled out from the processing box 13, which facilitates the cleaning of the surface of the heating rod 4, is beneficial to the subsequent use of the heating rod 4, and improves the heating efficiency.

[0040] Example 3

[0041] like Figures 1-4 As shown, based on the above embodiments, this embodiment further provides the following:

[0042] In this embodiment, a collection bottle 6 with an open top is placed on the mounting bracket 18 and below the liquid outlet at the bottom of the separation tube 3. By setting the collection bottle 6, it is convenient to collect the liquid discharged through the liquid outlet at the bottom of the separation tube 3.

[0043] In this embodiment, a gas guide pipe 7 connected to the interior is fixedly installed at the top of the outer wall of the treatment box 13. The other end of the gas guide pipe 7 is connected to an external inert gas conveying device. In this embodiment, the external inert gas conveying device is used to convey nitrogen. When in use, nitrogen is conveyed to the gas guide pipe 7 through the external inert gas conveying device, thereby reducing the ammonia concentration in the treatment box 13 and effectively preventing the ammonia in the treatment box 13 from exploding under high temperature conditions.

[0044] In this embodiment, valves 8 are fixedly installed on both the feed pipe 15 and the air guide pipe 7. By setting valves 8, it is convenient to open or close the feed pipe 15 and the air guide pipe 7.

[0045] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0046] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. An oil and ammonia water separation device for nitric acid production, characterized in that: Includes a support frame (1), a support plate (11) is fixedly installed on the support frame (1), an installation hole (12) is opened on the support plate (11), a processing box (13) with an open top is fixedly installed on the support plate (11) and located in the installation hole (12), and a top cover (14) is fixedly installed on the top of the processing box (13) by screws. A feed pipe (15) is fixedly installed on the top of the outer side wall of the processing box (13). A discharge port (16) is opened at the bottom of the processing box (13). A sealing head (17) for sealing the discharge port (16) is detachably installed on the processing box (13). An installation frame (18) is fixedly installed on the support frame (1) and on one side of the support plate (11). A condenser pipe (2) is fixedly installed on the installation frame (18). A vent pipe (21) is fixedly installed at one end of the condenser pipe (2) and connected to it. The other end of the vent pipe (21) is connected to the top cover (14). A separation pipe (3) is fixedly installed on the installation frame (18). The other end of the condenser pipe (2) is connected to the separation pipe (3). A heating rod (4) is installed inside the processing box (13), and a cleaning mechanism (5) is installed on the top cover (14) inside the processing box (13) for scraping and cleaning the inner wall of the processing box (13).

2. The oil and ammonia water separation device for nitric acid production according to claim 1, characterized in that: The cleaning mechanism (5) includes a vertically oriented rotating rod (51) rotatably mounted on the top cover (14) via a sealed bearing. The bottom end of the rotating rod (51) extends into the processing box (13) and is fixedly mounted with a connecting plate (52). The other end of the connecting plate (52) is fixedly mounted with a scraper (53) that fits against the inner wall of the processing box (13). A motor (54) for rotating the rotating rod (51) is fixedly mounted on the top cover (14) by screws.

3. The oil and ammonia water separation device for nitric acid production according to claim 1, characterized in that: The sealing head (17) includes a sealing cover (171) threadedly installed at the bottom of the processing box (13). A sealing block (172) is fixedly installed inside the sealing cover (171). When the sealing cover (171) is threadedly connected to the processing box (13), the sealing cover (171) seals the discharge port (16), and the sealing block (172) extends into the discharge port (16).

4. The oil and ammonia water separation device for nitric acid production according to claim 3, characterized in that: The heating rod (4) is inserted into the processing box (13) along the discharge port (16), and the heating rod (4) is fixedly connected to the sealing block (172).

5. The oil and ammonia water separation device for nitric acid production according to claim 1, characterized in that: A collection bottle (6) with an open top is placed on the mounting bracket (18) and below the liquid outlet at the bottom of the separation tube (3).

6. The oil and ammonia water separation device for nitric acid production according to claim 1, characterized in that: The top of the outer wall of the processing box (13) is also fixedly installed with a gas guide pipe (7) that communicates with its interior. The other end of the gas guide pipe (7) is connected to an external inert gas conveying device.

7. The oil and ammonia water separation device for nitric acid production according to claim 6, characterized in that: Valves (8) are fixedly installed on both the feed pipe (15) and the air guide pipe (7).

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