Ammonia gas recovery device in indigo synthesis production

Abstract

The utility model discloses an ammonia gas recovery device in indigo synthesis production, which relates to the technical field of ammonia gas recovery devices in indigo synthesis production, and comprises a collection box, a transmission pipe and a gas transmission pipe are arranged at the top of the collection box, one side of the collection box is meshed and connected with a baffle door, and the surface of the baffle door is hinged with a maintenance door. According to the device, a humic acid adsorbent is put into the collecting box through a conveying pipe, ammonia gas is conveyed into the collecting box through a gas conveying pipe, the ammonia gas is filtered through an activated carbon plate and a zeolite plate, replacement and cleaning are needed, and the ammonia gas can be collected by opening a maintenance door, pulling the whole filtering mechanism out of a movable groove and rotating a fixing bolt on a locking plate. The upper fixing frame and the lower fixing frame are not fixed by the fixing bolts, and the upper fixing frame is opened and closed on the lower fixing frame through the connecting blocks, so that the activated carbon plate and the zeolite plate in the upper fixing frame are flexibly replaced, the filtering performance of the activated carbon plate and the zeolite plate is ensured, and the ammonia gas can be effectively filtered and recycled.

Description

Technical Field

[0001] The utility model relates to the technical field of ammonia recovery devices in indigo synthesis production, in particular to an ammonia recovery device in indigo synthesis production. Background Art

[0002] Indigo is a widely used natural dye, primarily used in printing and dyeing, medicine, and food industries. The proportion of natural indigo in use is very small, and the vast majority of indigo is produced through chemical methods. During the alkali fusion reaction in the indigo synthesis process, a large amount of ammonia is generated. The recovery of ammonia emissions is also a relatively important production step in the indigo synthesis process.

[0003] The current publication number CN208389971U discloses an ammonia recovery device for indigo synthesis production, which includes an alkali melting kettle and a balance tank. The top of the alkali melting kettle is provided with a protective gas inlet pipe, an exhaust pipe, and an electric signal pressure gauge; the exhaust pipe is connected to the balance tank; the balance tank is also connected to a first air pipe provided with a pressure relief valve; the first air pipe is respectively connected to a normal pressure relief pipe and a second air pipe provided with a pressure relief valve, and the normal pressure relief pipe and the second air pipe are respectively connected to a pressure relief main pipe; the pressure relief main pipe is also connected to an ammonia recovery pipe provided with a pressure relief valve, and the ammonia recovery pipe is connected to a refrigeration unit; the utility model is controlled by a controller. The advantages of the utility model are that it recovers ammonia to the maximum extent and prevents ammonia leakage from causing environmental pollution; the introduction of protective gas prevents the material in the alkali melting kettle from solidifying due to oxidation, thereby ensuring the smooth operation of the alkali melting reaction system; through the automated control program, it plays a role in ensuring the safety of equipment operation in terms of control;

[0004] In order to solve the problem of ammonia recovery in the above-mentioned technical solution, the existing technology adopts a method of processing by using a controller to protect the gas inlet pipe, exhaust pipe, and electrical signal pressure gauge. However, the ammonia is not filtered well during recovery, which leads to the problem of poor ammonia recovery and filtration. Summary of the Invention

[0005] The purpose of the utility model is to provide an ammonia recovery device in indigo synthesis production to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0007] An ammonia recovery device for indigo synthesis production includes a collection box, a transmission pipe and an air transmission pipe installed on the top of the collection box, a baffle door meshingly connected to one side of the collection box, a maintenance door hinged on the surface of the baffle door, a filtering mechanism installed inside the collection box, an air pump installed on one side of the collection box, a transmission box installed at the output end of the air pump, a water pump installed on the top of the transmission box, a water spray mechanism installed at the output end of the water pump, and an air transmission pipe and a drain pipe installed at one end of the transmission box.

[0008] The filtering mechanism includes a mounting groove fixedly connected to the interior of the collection box, an upper fixing frame and a lower fixing frame are slidably connected inside the mounting groove, and placement grooves are opened on the surfaces of the upper fixing frame and the lower fixing frame.

[0009] A further improvement of the technical solution of the present utility model is that: a card slot is provided at the front end of the upper fixed frame and the lower fixed frame, a locking plate is hinged on the surface of the card slot, a fixing bolt is threadedly connected to the surface of the locking plate, and a movable slot is provided at the rear end of the lower fixed frame. By opening the maintenance door, the entire filter mechanism is pulled out of the movable slot and the fixing bolt on the locking plate is rotated.

[0010] A further improvement of the technical solution of the present utility model is that: the rear end of the upper fixed frame is fixedly connected to a connecting block, one end of which is hinged to the surface of the movable groove, and the connecting block is opened and closed on the lower fixed frame to replace the activated carbon plate and the zeolite plate inside it.

[0011] A further improvement of the technical solution of the present invention is that an activated carbon plate and a zeolite plate are placed on the surface of the lower fixed frame, and ammonia is filtered by the activated carbon plate and the zeolite plate.

[0012] A further improvement of the technical solution of the present utility model is that: the water spray mechanism includes a connecting column, the connecting column is fixedly connected to the inside of the conduction box, one end of the connecting column is fixedly connected to a fixing frame, a vertically fixed rotating column is provided at the center of the fixing frame, one end of the rotating column is installed with a water pipe, and by utilizing a sealing gasket to cooperate with the groove, the gap between the rotating sleeve and the rotating column is reduced, thereby reducing the waste of water resources.

[0013] A further improvement of the technical solution of the present utility model is that: a rotating sleeve is provided on the surface of the rotating column and is rotatably connected to the rotating column, an arc-shaped water spray pipe is fixedly connected to the surface of the rotating sleeve, the arc-shaped water spray pipe is communicated with the rotating sleeve, and a nozzle is fixedly connected to the surface of the arc-shaped water spray pipe, by fixing the water outlet of the nozzle on the surface of the arc-shaped water spray pipe in the same direction.

[0014] A further improvement of the technical solution of the present utility model is that: a cylindrical groove is provided inside the rotating column, a water outlet groove is opened on the side wall of the rotating column, a sealing gasket is provided on the lower surface of the rotating sleeve, a groove is provided at the connection between the sealing gasket and the rotating column, the sealing gasket is embedded in the groove and rotatably connected to the groove, and the water pipe transmits water to the inside of the cylindrical groove by utilizing the sealing gasket to cooperate with the groove.

[0015] Due to the adoption of the above technical solution, the present invention has achieved the following technical advancements compared to the prior art:

[0016] The utility model provides an ammonia recovery device in indigo synthesis production, wherein a humic acid-based adsorbent is put into a collection box through a transmission pipe, ammonia is transmitted to the collection box through an air transmission pipe, and the ammonia is filtered by an activated carbon plate and a zeolite plate. When the activated carbon plate and the zeolite plate are used for long-term filtering, they need to be replaced and cleaned. By opening a maintenance door, the entire filter mechanism is pulled out from a movable groove, and the fixing bolt on the locking plate is rotated so that the fixing bolt no longer fixes the upper fixing frame and the lower fixing frame. The upper fixing frame is opened and closed on the lower fixing frame through a connecting block, so that the activated carbon plate and the zeolite plate inside the upper fixing frame can be flexibly replaced, thereby ensuring the filtering performance of the activated carbon plate and the zeolite plate, thereby enabling effective filtering and recovery of ammonia.

[0017] The utility model provides an ammonia recovery device for indigo synthesis production. A water pipe is connected through a water pump, and the water pipe transmits water to the inside of a cylindrical groove. By using a sealing gasket to cooperate with the groove, the gap between the rotating sleeve and the rotating column is reduced, thereby reducing the waste of water resources. By fixing the water outlet of the nozzle on the surface of the arc-shaped water spray pipe in the same direction, the nozzle can use the reverse force of the water spray to push the rotating sleeve and the arc-shaped water spray pipe to rotate along the rotating column when spraying water, thereby achieving 360-degree rotation without dead angles, thereby evenly spraying the ammonia inside the conduction box, effectively degrading the ammonia, and effectively recovering the ammonia again. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the filter mechanism of the utility model;

[0020] Figure 3 This is a structural diagram of the water spraying mechanism of the utility model;

[0021] Figure 4 It is a structural schematic diagram of the rotating column of the utility model.

[0022] In the figure: 1. Collection box; 2. Block door; 3. Maintenance door; 4. Filter mechanism; 40. Mounting slot; 41. Upper fixing frame; 42. Card slot; 43. Connecting block; 44. Movable slot; 45. Lower fixing frame; 46. Locking plate; 47. Fixing bolt; 48. Placement slot; 49. Activated carbon plate; 491. Zeolite plate; 5. Air transfer pipe; 6. Transmission pipe; 7. Air pump; 8. Conducting box; 9. Water pump; 10. Water spray mechanism; 101. Connecting column; 102. Fixing frame; 103. Spray head; 104. Water pipe; 105. Rotating column; 106. Rotating sleeve; 107. Arc-shaped water spray pipe; 108. Cylindrical groove; 109. Water outlet trough; 110. Sealing gasket; 111. Groove; 11. Air pipe; 12. Drain pipe. DETAILED DESCRIPTION

[0023] The present invention is further described in detail below with reference to the embodiments: Example 1

[0024] like Figure 1-4 As shown, the utility model provides an ammonia recovery device in indigo synthesis production, including a collecting box 1, a transmission pipe 6 and an air transmission pipe 5 are installed on the top of the collecting box 1, a baffle door 2 is meshed and connected to one side of the collecting box 1, a maintenance door 3 is hinged on the surface of the baffle door 2, a filtering mechanism 4 is installed inside the collecting box 1, an air pump 7 is installed on one side of the collecting box 1, a conduction box 8 is installed on the output end of the air pump 7, a water pump 9 is installed on the top of the conduction box 8, a water spray mechanism 10 is installed on the output end of the water pump 9, an air transmission pipe 11 and a drain pipe 12 are installed at one end of the conduction box 8, and the filtering mechanism 4 includes a mounting groove 40 fixedly connected to the collecting box 1. Inside the header 1, an upper fixed frame 41 and a lower fixed frame 45 are slidably connected inside the mounting groove 40. A placement groove 48 is provided on the surfaces of the upper fixed frame 41 and the lower fixed frame 45. A card slot 42 is provided at the front end of each of the upper fixed frame 41 and the lower fixed frame 45. A locking plate 46 is hingedly connected to the surface of the card slot 42. A fixing bolt 47 is threadedly connected to the surface of the locking plate 46. A movable groove 44 is provided at the rear end of the lower fixed frame 45. A connecting block 43 is fixedly connected to the rear end of the upper fixed frame 41. One end of the connecting block 43 is hinged to the surface of the movable groove 44. An activated carbon plate 49 and a zeolite plate 491 are placed on the surface of the lower fixed frame 45.

[0025] Specifically, the humic acid adsorbent is put into the collection box 1 through the transmission pipe 6, and the ammonia is transmitted to the collection box 1 through the air transmission pipe 5. The ammonia is filtered by the activated carbon plate 49 and the zeolite plate 491. Zeolite is a porous aluminosilicate mineral with a water-containing framework structure. The most basic structure of the zeolite skeleton is silicon oxide (SiO4) tetrahedron and aluminum oxide (AIO4) tetrahedron. Zeolite has a hollow skeleton structure, and the crystal cavity volume is about 40% to 50% of the total volume. The pore size is mostly below 1nm. Zeolite has a large specific surface area (400 to 800m2 / g zeolite), second only to Activated carbon can be used as an adsorbent, ion exchanger, etc. Zeolite has a preferential selective adsorption effect on polar, unsaturated and easily polarized molecules. When the activated carbon plate 49 and the zeolite plate 491 are used for long-term filtration, they will need to be replaced and cleaned. By opening the maintenance door 3, the entire filter mechanism 4 is pulled out from the movable groove 44, and the fixing bolt 47 on the locking plate 46 is rotated so that the fixing bolt 47 no longer fixes the upper fixed frame 41 and the lower fixed frame 45. The upper fixed frame 41 is opened and closed on the lower fixed frame 45 through the connecting block 43, thereby replacing the activated carbon plate 49 and the zeolite plate 491 inside it. Example 2

[0026] like Figure 1-4 As shown, based on Example 1, the present invention provides a technical solution: preferably, the water spraying mechanism 10 includes a connecting column 101, the connecting column 101 is fixedly connected to the inside of the conduction box 8, one end of the connecting column 101 is fixedly connected to a fixing frame 102, a rotating column 105 is provided at the center of the fixing frame 102, a water pipe 104 is installed at one end of the rotating column 105, a rotating sleeve 106 is provided on the surface of the rotating column 105 and is rotatably connected to the rotating column 105, and the rotating sleeve 106 is provided on the surface of the rotating column 105. The surface of the rotating column 105 is fixedly connected with an arc-shaped water spray pipe 107, which is in communication with the rotating sleeve 106. The surface of the arc-shaped water spray pipe 107 is fixedly connected with the nozzle 103. A cylindrical groove 108 is provided inside the rotating column 105. A water outlet groove 109 is provided on the side wall of the rotating column 105. A sealing gasket 110 is provided on the lower surface of the rotating sleeve 106. A groove 111 is provided at the connection between the sealing gasket 110 and the rotating column 105. The sealing gasket 110 is embedded in the groove 111 and is rotatably connected to the groove 111.

[0027] Specifically, the water pipe 104 is connected through the water pump 9, and the water pipe 104 transmits water to the inside of the cylindrical groove 108. By using the sealing gasket 110 to cooperate with the groove 111, the gap between the rotating sleeve 106 and the rotating column 105 is reduced, thereby reducing the waste of water resources. By fixing the water outlet of the nozzle 103 on the surface of the arc-shaped water spray pipe 107 in the same direction, the nozzle 103 can use the reverse force of the water spray to push the rotating sleeve 106 and the arc-shaped water spray pipe 107 to rotate along the rotating column 105 when spraying water, thereby achieving 360-degree rotation without dead angles, thereby evenly spraying the ammonia inside the conduction box 8 and degrading the ammonia.

[0028] The following is a detailed description of the working principle of the ammonia recovery device in the indigo synthesis production.

[0029] like Figure 1-4 As shown, the humic acid adsorbent is put into the collection box 1 through the transmission pipe 6, and the ammonia is transmitted to the collection box 1 through the air transmission pipe 5. The ammonia is filtered by the activated carbon plate 49 and the zeolite plate 491. When the activated carbon plate 49 and the zeolite plate 491 are filtered for a long time, they need to be replaced and cleaned. By opening the maintenance door 3, the entire filter mechanism 4 is pulled out from the movable groove 44, and the fixing bolt 47 on the locking plate 46 is rotated so that the fixing bolt 47 is no longer fixed to the upper fixed frame 41 and the lower fixed frame 45. The upper fixed frame 41 is opened and closed on the lower fixed frame 45 through the connecting block 43, so that the activated carbon plate 49 and the zeolite plate 491 inside it are replaced, and the air pump 7 is used to replace the activated carbon plate 49 and the zeolite plate 491 inside it. The filtered ammonia is transmitted to the interior of the conduction box 8, and the water pipe 104 is connected through the water pump 9. The water pipe 104 transmits water to the interior of the cylindrical groove 108. By using the sealing gasket 110 to cooperate with the groove 111, the gap between the rotating sleeve 106 and the rotating column 105 is reduced, thereby reducing the waste of water resources. By fixing the water outlet of the nozzle 103 on the surface of the arc-shaped water spray pipe 107 in the same direction, the nozzle 103 can use the reverse force of the water spray to push the rotating sleeve 106 and the arc-shaped water spray pipe 107 to rotate along the rotating column 105 when spraying water, thereby achieving 360-degree rotation without dead angles, thereby evenly spraying the ammonia inside the conduction box 8 and degrading the ammonia.

[0030] The above generally describes the present invention in detail. However, it is obvious to those skilled in the art that modifications or improvements may be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. An ammonia recovery device for indigo synthesis production, comprising a collecting box (1), characterized in that: A transmission pipe (6) and an air transmission pipe (5) are installed on the top of the collection box (1); a baffle door (2) is meshedly connected to one side of the collection box (1); a maintenance door (3) is hingedly connected to the surface of the baffle door (2); a filtering mechanism (4) is installed inside the collection box (1); an air pump (7) is installed on one side of the collection box (1); a conduction box (8) is installed at the output end of the air pump (7); a water pump (9) is installed on the top of the conduction box (8); a water spray mechanism (10) is installed at the output end of the water pump (9); and an air pipe (11) and a drain pipe (12) are installed at one end of the conduction box (8); The filtering mechanism (4) includes a mounting groove (40) fixedly connected to the interior of the collection box (1); an upper fixing frame (41) and a lower fixing frame (45) are slidably connected inside the mounting groove (40); and placement grooves (48) are provided on the surfaces of the upper fixing frame (41) and the lower fixing frame (45).

2. The ammonia recovery device in indigo synthesis production according to claim 1, characterized in that: The front ends of the upper fixing frame (41) and the lower fixing frame (45) are both provided with a slot (42), the surface of the slot (42) is hinged with a locking plate (46), the surface of the locking plate (46) is threadedly connected with a fixing bolt (47), and the rear end of the lower fixing frame (45) is provided with a movable slot (44).

3. The ammonia recovery device in indigo synthesis production according to claim 2, characterized in that: The rear end of the upper fixed frame (41) is fixedly connected to a connecting block (43), and one end of the connecting block (43) is hinged to the surface of the movable groove (44).

4. The ammonia recovery device in indigo synthesis production according to claim 3, characterized in that: An activated carbon plate (49) and a zeolite plate (491) are placed on the surface of the lower fixing frame (45).

5. The ammonia recovery device in indigo synthesis production according to claim 1, characterized in that: The water spray mechanism (10) comprises a connecting column (101), wherein the connecting column (101) is fixedly connected to the inside of the conduction box (8), one end of the connecting column (101) is fixedly connected to a fixing frame (102), a rotating column (105) fixedly connected vertically is provided at the center of the fixing frame (102), and a water pipe (104) is installed at one end of the rotating column (105).

6. The ammonia recovery device in indigo synthesis production according to claim 5, characterized in that: The surface of the rotating column (105) is sleeved with a rotating sleeve (106) and is rotatably connected to the rotating column (105). The surface of the rotating sleeve (106) is fixedly connected to an arc-shaped water spray pipe (107). The arc-shaped water spray pipe (107) is in communication with the rotating sleeve (106). The surface of the arc-shaped water spray pipe (107) is fixedly connected to a nozzle (103).

7. The ammonia recovery device in indigo synthesis production according to claim 6, characterized in that: A cylindrical groove (108) is provided inside the rotating column (105), a water outlet groove (109) is provided on the side wall of the rotating column (105), a sealing gasket (110) is provided on the lower surface of the rotating sleeve (106), a groove (111) is provided at the connection between the sealing gasket (110) and the rotating column (105), and the sealing gasket (110) is embedded in the groove (111) and is rotatably connected to the groove (111).

Images