Device for separating and recovering heavy component feed liquid from tail gas generated in dinitrodiphenyl ether production

Abstract

The utility model belongs to the technical field of dinitrodiphenyl ether production, and particularly relates to a device for separating and recycling heavy component feed liquid from tail gas generated in dinitrodiphenyl ether production, which comprises a tank body, a partition plate fixedly connected to the upper end of the inner wall of the tank body, a flow guide seat fixedly connected to the bottom of the inner wall of the tank body, and a spiral groove formed in the inner wall of the flow guide seat. A condenser pipe is fixedly connected to the inner wall of the tank body, sliding grooves are formed in the bottom of the partition plate and the bottom of the tank body, sliding plates are installed in the sliding grooves, pressing plates are fixedly connected to the ends, located outside the tank body, of the sliding plates, springs are fixedly connected to the two ends of the inner wall of each pressing plate, and a plurality of spring grooves are formed in the outer wall of the right side of the tank body; the other ends of the springs are fixedly connected with the inner walls of the spring grooves, the inner walls of the multiple spring grooves are fixedly connected with positioning rods, the positioning rods are located in the springs, the other ends of the positioning rods are located in the pressing plate, and the outer wall of the right side of the tank body is fixedly connected with an air cylinder base. According to the utility model, the tail gas generated in the dinitrodiphenyl ether production process can be subjected to gas-liquid separation under the action of the condenser pipe, so that the heavy component feed liquid can be conveniently recycled subsequently.

Description

Technical Field

[0001] The utility model belongs to the technical field of dinitrodiphenyl ether production, in particular to a device for separating and recovering recombinant fraction liquid from tail gas generated in the production of dinitrodiphenyl ether. Background Art

[0002] Dinitrodiphenyl ether (DNEO) is an organic compound that appears as yellow to orange crystals with a high melting point and a low boiling point. It is readily soluble in organic solvents but insoluble in water. It is explosive and highly hazardous. It is often used as explosives, rocket fuel, and an intermediate in organic synthesis. The production of DNI produces tail gas.

[0003] In the existing technology, when producing dinitrodiphenyl ether, the tail gas usually needs to go through multiple steps for filtration treatment before being discharged. The tail gas generated during the production of dinitrodiphenyl ether contains heavy components, which often contain a small amount of valuable components such as dinitrodiphenyl ether. Direct filtration and discharge cannot separate and recover the heavy components, resulting in waste. Summary of the Invention

[0004] The purpose of the utility model is to provide a device for separating and recovering heavy component liquid from the tail gas generated in the production of dinitrodiphenyl ether, which can separate valuable heavy components from the tail gas generated in the production process of dinitrodiphenyl ether and facilitate subsequent recycling.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is as follows: a device for separating and recovering recombinant fraction liquid from the tail gas generated by the production of dinitrodiphenyl ether is provided, comprising a tank body, a partition is fixedly connected to the upper end of the inner wall of the tank body, a guide seat is fixedly connected to the bottom of the inner wall of the tank body, a spiral groove is provided on the inner wall of the guide seat, a condenser is fixedly connected to the inner wall of the tank body, a chute is provided on the partition and the bottom of the tank body, a slide is installed inside the chute, and a pressure plate is fixedly connected to one end of the slide located outside the tank body. Both ends of the inner wall are fixedly connected with a spring, and a spring groove is opened on the right outer wall of the tank body, and there are multiple spring grooves. The other end of the spring is fixedly connected to the inner wall of the spring groove, and the inner walls of the multiple spring grooves are fixedly connected with a positioning rod, which is located inside the spring, and the other end of the positioning rod is located inside the pressure plate. The right outer wall of the tank body is fixedly connected to the cylinder seat, and the other end outer wall of the cylinder seat is fixedly connected to the cylinder, and connecting rods are installed inside both ends of the cylinder, and the other end of the connecting rod is fixedly connected to the push block.

[0006] Optionally, the upper sliding groove passes through the right outer wall of the tank body, the two adjacent spring grooves are respectively located at both ends of the sliding groove, and the opposite back surfaces of the two push blocks are both inclined surfaces.

[0007] Optionally, the inner walls of the two slides are provided with limiting grooves, and the number of the limiting grooves is two respectively, and the outer walls on both sides of the two slides are fixedly connected to limiting strips, and the limiting strips are located inside the limiting grooves.

[0008] Optionally, a filter is provided at the upper inner end of the tank body, and a mounting plate is fixedly connected to the outer wall of the filter, and there are multiple mounting plates. A mounting groove is opened at the upper inner end of the inner wall of the tank body, and there are multiple mounting grooves, and the multiple mounting plates are respectively located inside the multiple mounting grooves.

[0009] Optionally, the left outer wall of the tank body is fixedly connected to an air intake pipe, the left outer wall of the tank body is fixedly connected to an exhaust pipe, the top of the exhaust pipe is fixedly connected to a solenoid valve, the bottom of the tank body is fixedly connected to a drain pipe, a connecting hole is opened at the bottom of the inner wall of the tank body, the connecting hole is connected to the slide groove at the lower end, and the drain pipe is connected to the tank body through the connecting hole.

[0010] Optionally, a supporting foot is fixedly connected to the bottom of the tank body, and there are multiple supporting feet. A top cover is installed on the top of the tank body, and the top cover is connected to the top of the tank body by bolts.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. In the initial state of the present invention, the connecting rod at the lower end drives the pushing block at the lower end to squeeze the slide at the lower end, so that the slide at the lower end is completely inserted into the slide groove, blocking the connection between the tank body and the outside. At this time, the two springs at the lower end are in a compressed state, and the exhaust gas enters the tank body through the intake pipe, and then enters the partition and the guide seat through the partition. Then the connecting rod at the upper end inside the cylinder pushes the pushing block at the upper end to squeeze the slide at the upper end, so that the slide at the upper end enters the interior of the upper slide groove, blocking the upper space of the partition and the lower space of the partition, so that the exhaust gas is located in the partition and the guide seat. Then the condenser works, and the heavy component liquid in the exhaust gas usually has a higher boiling point, which can be separated from the exhaust gas by condensation. After the heavy component liquid is separated, due to the density of the liquid The gas is larger than the gas part, so that the gas is located at the upper end position between the partition and the guide seat, and the recombinant liquid flows along the top of the guide seat and then through the spiral groove opened on the inner wall of the guide seat and falls onto the slide at the lower end. Then, the connecting rod at the lower end moves upward, so that the push block at the lower end slowly separates from the slide at the lower end, and the two springs at the lower end rebound, so that the slide at the lower end slides out to the outside of the slide, and the recombinant liquid in the tank body flows out from the inside of the tank body through the connecting hole and the drain pipe, and then the slide at the lower end blocks the connection between the tank body and the outside again, and the slide at the upper end moves to the outside of the upper slide again, and the tail gas enters the tank body again. The above process can perform gas-liquid separation on the tail gas generated in the production process of dinitrodiphenyl ether, separate the recombinant components, and facilitate the subsequent recycling of the recombinant liquid.

[0013] 2. When the exhaust gas enters the partition and the guide seat, the particulate matter in the exhaust gas is filtered through the filter, and the filter can be pulled upward to be taken out of the tank. The filter can be cleaned or replaced to ensure the filtering effect of the particulate matter in the exhaust gas. Open the solenoid valve, and the gas after solid-liquid separation will be discharged through the exhaust pipe. Then close the solenoid valve and the exhaust gas can be allowed in again. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model from a first perspective;

[0016] Figure 2 This is a schematic diagram of the third perspective structure of the present invention;

[0017] Figure 3 This is a schematic diagram of the three-dimensional structure of the spring slot of the utility model;

[0018] Figure 4 This is a schematic diagram of the three-dimensional structure of the skateboard of the utility model;

[0019] Figure 5 This is a schematic diagram of the three-dimensional structure of the cylinder of the utility model;

[0020] Figure 6 Schematic diagram of the three-dimensional structure of the filter screen of the utility model

[0021] Figure 7 It is a schematic diagram of the cross-sectional three-dimensional structure of the present utility model.

[0022] In the figure: 1. Tank body; 2. Partition; 3. Guide seat; 4. Spiral groove; 5. Condenser; 6. Slide; 7. Slide plate; 8. Pressure plate; 9. Spring; 10. Spring groove; 11. Positioning rod; 12. Cylinder seat; 13. Cylinder; 14. Connecting rod; 15. Push block; 16. Limit groove; 17. Limit strip; 18. Filter; 19. Mounting plate; 20. Mounting groove; 21. Inlet pipe; 22. Exhaust pipe; 23. Solenoid valve; 24. Drain pipe; 25. Connecting hole; 26. Support foot; 27. Top cover. DETAILED DESCRIPTION

[0023] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0024] It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.

[0025] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0027] Reference Figure 1-4 Now, a device for separating and recovering a recombinant fraction liquid from the tail gas generated by the production of dinitrodiphenyl ether provided by an embodiment of the present invention will be described. A device for separating and recovering a recombinant fraction liquid from the tail gas generated by the production of dinitrodiphenyl ether comprises a tank body 1, a partition 2 is fixedly connected to the upper end of the inner wall of the tank body 1, a guide seat 3 is fixedly connected to the bottom of the inner wall of the tank body 1, a spiral groove 4 is provided on the inner wall of the guide seat 3, a condenser 5 is fixedly connected to the inner wall of the tank body 1, a slide 6 is provided on the partition 2 and the bottom of the tank body 1, a slide 7 is installed inside the slide 6, one end of the slide 7 located outside the tank body 1 is fixedly connected to a pressure plate 8, both ends of the inner wall of the pressure plate 8 are fixedly connected to a spring 9, a spring groove 10 is provided on the right outer wall of the tank body 1, and there are multiple spring grooves 10, the other end of the spring 9 is fixedly connected to the inner wall of the spring groove 10, and the inner walls of the multiple spring grooves 10 are fixedly connected to positioning rods. 11. The positioning rod 11 is located inside the spring 9, and the other end of the positioning rod 11 is located inside the pressure plate 8. The right outer wall of the tank body 1 is fixedly connected to the cylinder seat 12, and the outer wall of the other end of the cylinder seat 12 is fixedly connected to the cylinder 13. The cylinder 13 is a double-headed cylinder, and connecting rods 14 are installed inside both ends of the cylinder 13. The other end of the connecting rod 14 is fixedly connected to a push block 15. The upper end slide 6 runs through the right outer wall of the tank body 1, and the two adjacent spring grooves 10 are respectively located at the two ends of the slide 6. The opposite back surfaces of the two push blocks 15 are both inclined surfaces. The inner walls of the two slides 6 are provided with limiting grooves 16, and the number of limiting grooves 16 is two. The outer walls of both sides of the two slides 7 are fixedly connected to limiting strips 17, and the limiting strips 17 are located inside the limiting grooves 16.

[0028] In the initial state of the present invention, the connecting rod 14 at the lower end drives the pushing block 15 at the lower end to squeeze the slide plate 7 at the lower end, so that the slide plate 7 at the lower end is completely inserted into the chute 6, blocking the connection between the tank body 1 and the outside. At this time, the two springs 9 at the lower end are in a compressed state, and the exhaust gas enters the tank body 1 through the intake pipe 21, and then enters the partition 2 and the guide seat 3 through the partition 2. Then the connecting rod 14 at the upper end of the cylinder 13 pushes the pushing block 15 at the upper end to squeeze the slide plate 7 at the upper end, so that the slide plate 7 at the upper end enters the interior of the upper chute 6, blocking the upper space of the partition 2 and the lower space of the partition 2, so that the exhaust gas is located in the partition 2 and the guide seat 3, and then the condenser 5 works, and the heavy component liquid in the exhaust gas usually has a higher boiling point, and the heavy component liquid can be separated from the exhaust gas by condensation. After the heavy component liquid is separated, due to the material The density of the liquid is greater than that of the gas, so that the gas is located at the upper end position between the partition 2 and the guide seat 3. The recombinant liquid flows along the top of the guide seat 3 and then through the spiral groove 4 opened on the inner wall of the guide seat 3 and falls onto the lower end slide 7. Then, the lower end connecting rod 14 moves upward, so that the push block 15 at the lower end slowly disengages from the lower end slide 7. The two springs 9 at the lower end rebound, so that the lower end slide 7 slides out to the outside of the chute 6. The recombinant liquid in the tank body 1 flows out from the inside of the tank body 1 through the connecting hole 25 and the drain pipe 24, and then the lower end slide 7 again blocks the connection between the tank body 1 and the outside, and the upper end slide 7 moves to the outside of the upper end chute 6 again, and the tail gas enters the tank body 1 again. The above process can perform gas-liquid separation on the tail gas generated in the production process of dinitrodiphenyl ether, separate the recombinant components, and facilitate the subsequent recycling of the recombinant liquid.

[0029] In another embodiment of the present invention, please refer to Figure 5 A filter screen 18 is provided at the upper end of the interior of the tank body 1, and a mounting plate 19 is fixedly connected to the outer wall of the filter screen 18, and there are multiple mounting plates 19. A mounting groove 20 is opened at the upper end of the inner wall of the tank body 1, and there are multiple mounting grooves 20. Multiple mounting plates 19 are respectively located inside the multiple mounting grooves 20. When the exhaust gas enters between the partition 2 and the guide seat 3, the particulate matter in the exhaust gas is filtered through the filter screen 18, and the filter screen 18 can be pulled upward to remove the filter screen 18 from the tank body 1, and the filter screen 18 can be cleaned or replaced to ensure the filtering effect of the particulate matter in the exhaust gas.

[0030] In another embodiment of the present invention, please refer to Figure 1 and Figure 2The left outer wall of the tank body 1 is fixedly connected with an air intake pipe 21, the left outer wall of the tank body 1 is fixedly connected with an exhaust pipe 22, the top of the exhaust pipe 22 is fixedly connected with a solenoid valve 23, the bottom of the tank body 1 is fixedly connected with a drain pipe 24, and a connecting hole 25 is provided at the bottom of the inner wall of the tank body 1. The connecting hole 25 is connected with the lower end slide 6, and the drain pipe 24 is connected with the tank body 1 through the connecting hole 25. The bottom of the tank body 1 is fixedly connected with a support leg 26, and the number of the support legs 26 is multiple. A top cover 27 is installed on the top of the tank body 1, and the top cover 27 is connected to the top of the tank body 1 by bolts. Open the solenoid valve 23, and the gas after solid-liquid separation will be discharged through the exhaust pipe 22, and then close the solenoid valve 23 to let the exhaust gas in again.

[0031] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A device for separating and recovering a recombinant liquid from tail gas produced by dinitrodiphenyl ether production, comprising a tank (1), characterized in that: The upper end of the inner wall of the tank body (1) is fixedly connected to a partition (2), the bottom of the inner wall of the tank body (1) is fixedly connected to a guide seat (3), the inner wall of the guide seat (3) is provided with a spiral groove (4), the inner wall of the tank body (1) is fixedly connected to a condenser pipe (5), the partition (2) and the bottom of the tank body (1) are provided with a slide groove (6), a slide plate (7) is installed inside the slide groove (6), the end of the slide plate (7) located outside the tank body (1) is fixedly connected to a pressure plate (8), both ends of the inner wall of the pressure plate (8) are fixedly connected to springs (9), the right outer wall of the tank body (1) is provided with a spring groove (10), and There are multiple spring slots (10), the other end of the spring (9) is fixedly connected to the inner wall of the spring slot (10), the inner walls of the multiple spring slots (10) are fixedly connected with a positioning rod (11), the positioning rod (11) is located inside the spring (9), the other end of the positioning rod (11) is located inside the pressure plate (8), the right outer wall of the tank body (1) is fixedly connected with a cylinder seat (12), the outer wall of the other end of the cylinder seat (12) is fixedly connected with a cylinder (13), connecting rods (14) are installed inside both ends of the cylinder (13), and the other end of the connecting rod (14) is fixedly connected with a push block (15).

2. The device for separating and recovering a recombinant fraction liquid from tail gas produced by dinitrodiphenyl ether production as claimed in claim 1, characterized in that: The upper end of the slide groove (6) passes through the right outer wall of the tank body (1), and the two adjacent spring grooves (10) are respectively located at the two ends of the slide groove (6), and the opposite back surfaces of the two push blocks (15) are both inclined surfaces.

3. The device for separating and recovering a recombinant fraction liquid from tail gas generated in the production of dinitrodiphenyl ether according to claim 1, wherein: The inner walls of the two slide grooves (6) are each provided with a limiting groove (16), and the number of the limiting grooves (16) is two. The outer walls on both sides of the two slide plates (7) are both fixedly connected to the limiting strips (17), and the limiting strips (17) are located inside the limiting grooves (16).

4. The device for separating and recovering a recombinant fraction liquid from tail gas generated in the production of dinitrodiphenyl ether according to claim 1, wherein: A filter screen (18) is provided at the upper end of the interior of the tank body (1), a mounting plate (19) is fixedly connected to the outer wall of the filter screen (18), and the number of the mounting plates (19) is multiple; a mounting groove (20) is provided at the upper end of the inner wall of the tank body (1), and the number of the mounting grooves (20) is multiple, and the multiple mounting plates (19) are respectively located inside the multiple mounting grooves (20).

5. The device for separating and recovering a recombinant fraction liquid from tail gas generated in the production of dinitrodiphenyl ether according to claim 1, wherein: The left outer wall of the tank body (1) is fixedly connected to an air inlet pipe (21), the left outer wall of the tank body (1) is fixedly connected to an exhaust pipe (22), the top of the exhaust pipe (22) is fixedly connected to a solenoid valve (23), the bottom of the tank body (1) is fixedly connected to a liquid discharge pipe (24), a connecting hole (25) is provided at the bottom of the inner wall of the tank body (1), the connecting hole (25) is connected to the chute (6) at the lower end, and the liquid discharge pipe (24) is connected to the tank body (1) through the connecting hole (25).

6. The device for separating and recovering a recombinant fraction liquid from tail gas generated in the production of dinitrodiphenyl ether according to claim 1, characterized in that: The bottom of the tank body (1) is fixedly connected with a supporting foot (26), and the number of the supporting foot (26) is multiple. The top of the tank body (1) is installed with a top cover (27), and the top cover (27) is connected to the top of the tank body (1) by bolts.

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