Device for recovering pentanediamine from nylon production wastewater

Abstract

The utility model relates to pentanediamine recovery technical field especially relates to a kind of nylon production wastewater recovery pentanediamine device, including tank, multiple mounting holes are set in the tank side, multiple the adsorption plate is inserted in the mounting hole, multiple the adsorption plate is in the tank and is distributed spirally, multiple the adsorption plate is parallel and staggered arrangement, the adsorption plate is fixedly installed with mounting block at one end outside the tank, locking assembly for locking mounting block is equipped on the tank, drainage pipe is installed in the tank lower end, control valve is installed in the drainage pipe. The utility model wastewater is sequentially flowed on multiple adsorption plates when entering into tank, multiple adsorption plate is distributed spirally in tank, increase the contact area and contact time of wastewater and adsorption plate, make wastewater in device present spiral descending path flow, fully contact with adsorbent on each adsorption plate, significantly improve the adsorption effect, improve the recovery rate of pentanediamine.

Description

Technical Field

[0001] This utility model relates to the field of pentanediamine recovery technology, and in particular to a device for recovering pentanediamine from nylon production wastewater. Background Technology

[0002] During the production of nylon, multiple processes such as polymerization and extraction generate industrial wastewater containing pentanediamine. As a core monomer for synthesizing high-end materials such as polyamide and epoxy resin curing agents, pentanediamine has a market price of tens of thousands of yuan per ton. The efficient recovery of pentanediamine from wastewater can not only realize the recycling of resources and reduce the raw material procurement costs of enterprises, but also reduce pollutant emissions, which has significant economic value and environmental significance.

[0003] Currently, the adsorption method is a commonly used method for recovering pentanediamine from nylon production wastewater. However, in practical applications, there is a problem that the wastewater cannot fully contact the adsorbent. Traditional adsorption devices often simply mix the wastewater and the adsorbent, resulting in a limited contact area and insufficient contact time, which leads to poor adsorption effect and low recovery rate of pentanediamine. Utility Model Content

[0004] The purpose of this invention is to address the following shortcomings in the existing technology: wastewater cannot fully contact the adsorbent. Traditional adsorption devices often simply mix wastewater and adsorbent, resulting in limited contact area and insufficient contact time, thus leading to poor adsorption effect and low recovery rate of pentanediamine. Therefore, this invention proposes a device for recovering pentanediamine from nylon production wastewater.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A device for recovering pentanediamine from nylon production wastewater includes a tank, a wastewater inlet at the top of the tank, a water distribution assembly installed inside the wastewater inlet, and multiple mounting holes on the side of the tank, which are spirally distributed on the tank.

[0007] Adsorption plates are inserted into multiple mounting holes. The multiple adsorption plates are spirally distributed inside the tank. The multiple adsorption plates are parallel to each other and staggered. An installation block is fixedly installed at one end of the adsorption plate outside the tank. The tank is provided with a locking component for locking the installation block. A drain pipe is installed at the lower end of the tank. A control valve is installed inside the drain pipe.

[0008] Preferably, the locking assembly includes a limiting block fixedly installed on the side of the tank body, the limiting block having symmetrically opened limiting holes, the mounting block having symmetrically opened insertion holes, and the locking assembly including a strip rod and two insertion rods respectively vertically fixedly installed at both ends of the strip rod, one end of the insertion rod passing through the limiting hole and inserted into the insertion hole.

[0009] Preferably, the water distribution assembly includes a rectangular block fixedly installed inside the wastewater inlet, multiple water distribution branch pipes vertically fixedly installed on the lower surface of the rectangular block, and an inlet pipe fixedly installed on the upper surface of the rectangular block. The rectangular block has a rectangular cavity inside, and the multiple water distribution branch pipes and the inlet pipe are all connected to the rectangular cavity. The multiple water distribution branch pipes are located directly above the uppermost adsorption plate, and the lower ends of the multiple water distribution branch pipes are sealed. Multiple water distribution holes are opened on the sides of the multiple water distribution branch pipes.

[0010] Preferably, a sealing strip is fixedly installed on the adsorption plate, and the side of the sealing strip is in close contact with the side of the tank.

[0011] Preferably, a guide plate is fixedly installed at one end of the adsorption plate inside the tank, and the guide plate is parallel to the adsorption plate.

[0012] Preferably, the upper surface of the adsorption plate is provided with a plurality of grooves, and the number of grooves is not less than ten.

[0013] The beneficial effects of this utility model are as follows:

[0014] When wastewater enters the tank, it flows sequentially onto multiple adsorption plates. These plates are spirally distributed within the tank, and this three-dimensional spiral structure greatly increases the contact area and contact time between the wastewater and the adsorption plates. This allows the wastewater to flow in a spiral downward path within the device, ensuring full contact with the adsorbent on each adsorption plate, significantly improving the adsorption effect and thus increasing the recovery rate of pentanediamine. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of a device for recovering pentanediamine from nylon production wastewater proposed in this utility model;

[0016] Figure 2 This is a three-dimensional cross-sectional schematic diagram of a device for recovering pentanediamine from nylon production wastewater proposed in this utility model;

[0017] Figure 3 A three-dimensional structural diagram of the adsorption plate, the guide plate, and the locking assembly;

[0018] Figure 4 This is a schematic diagram of the three-dimensional cross-sectional structure of the water distribution component.

[0019] In the diagram: 1. Tank body, 2. Adsorption plate, 3. Mounting block, 4. Drain pipe, 5. Limiting block, 6. Insertion hole, 7. Strip rod, 8. Insert rod, 9. Rectangular block, 10. Water distribution branch pipe, 11. Water inlet pipe, 12. Groove, 13. Water distribution hole, 14. Sealing strip, 15. Guide plate. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Reference Figures 1-4 A device for recovering pentanediamine from nylon production wastewater includes a tank 1. The top of the tank 1 has a wastewater inlet, and a water distribution component is installed inside the wastewater inlet. Multiple mounting holes are provided on the side of the tank 1, and the mounting holes are spirally distributed on the tank 1. Adsorption plates 2 are inserted into each of the mounting holes, and the adsorption plates 2 are spirally distributed inside the tank 1. The adsorption plates 2 are parallel to each other and staggered. An installation block 3 is fixedly installed at one end of the adsorption plate 2 outside the tank 1. The tank 1 is provided with a locking component for locking the installation block 3. A drain pipe 4 is installed at the lower end of the tank 1, and a control valve is installed inside the drain pipe 4.

[0022] The adsorption plate 2 is a porous ceramic plate, and the surface of the adsorption plate 2 is coated with a special adsorption material, which is a modified porous resin with the characteristics of large specific surface area and high adsorption selectivity.

[0023] Wastewater enters the tank 1 through the water distribution assembly and falls onto the top adsorption plate 2. As the wastewater flows on the adsorption plate 2, the adsorbent material on the adsorption plate 2 adsorbs the pentanediamine in the wastewater. Multiple adsorption plates 2 are spirally distributed inside the tank 1. This spirally interwoven three-dimensional structure greatly increases the contact area and contact time between the wastewater and the adsorption plates 2, allowing the wastewater to flow in a spiral downward path within the device, fully contacting the adsorbent on each adsorption plate 2, significantly improving the adsorption effect, and thus increasing the recovery rate of pentanediamine.

[0024] The locking assembly includes a limiting block 5 fixedly installed on the side of the tank body 1. The limiting block 5 has symmetrical limiting holes, and the mounting block 3 has symmetrical insertion holes 6. The locking assembly includes a strip rod 7 and two insertion rods 8 that are respectively vertically fixed at both ends of the strip rod 7. One end of the insertion rod 8 passes through the limiting hole and is inserted into the insertion hole 6. When installing the adsorption plate 2, the adsorption plate 2 is inserted into the mounting hole. Then, the insertion hole 6 of the mounting block 3 is aligned with the limiting hole of the limiting block 5. Then, the two insertion rods 8 installed on the strip rod 7 pass through the limiting hole and are inserted into the insertion hole 6, thereby locking the mounting block 3 and the adsorption plate 2, making the installation of the adsorption plate 2 very convenient and facilitating the subsequent installation and disassembly of the adsorption plate 2.

[0025] The water distribution assembly includes a rectangular block 9 fixedly installed inside the wastewater inlet, multiple water distribution branch pipes 10 vertically fixedly installed on the lower surface of the rectangular block 9, and an inlet pipe 11 fixedly installed on the upper surface of the rectangular block 9. A rectangular cavity is opened inside the rectangular block 9. The multiple water distribution branch pipes 10 and the inlet pipe 11 are all connected to the rectangular cavity. The multiple water distribution branch pipes 10 are located directly above the uppermost adsorption plate 2. The lower ends of the multiple water distribution branch pipes 10 are sealed. Multiple water distribution holes 13 are opened on the sides of the multiple water distribution branch pipes 10. Wastewater enters the rectangular cavity through the inlet pipe 11, then enters the multiple water distribution branch pipes 10 through the rectangular cavity, and is then sprayed out through the water distribution holes 13 opened on the multiple water distribution branch pipes 10, which can evenly spray the wastewater onto the uppermost adsorption plate 2.

[0026] A sealing strip 14 is fixedly installed on the adsorption plate 2. The side of the sealing strip 14 is in close contact with the side of the tank body 1, and the end of the sealing strip 14 is in contact with the mounting hole to ensure the sealing between the adsorption plate 2 and the mounting hole and prevent wastewater leakage.

[0027] A guide plate 15 is fixedly installed at one end of the adsorption plate 2 inside the tank 1. The guide plate 15 is parallel to the adsorption plate 2. The guide plate 15 prevents wastewater from flowing out from one end of the adsorption plate 2 and guides the wastewater to flow smoothly from the upper adsorption plate 2 into the lower adsorption plate 2.

[0028] The upper surface of the adsorption plate 2 is provided with a plurality of grooves 12, the number of grooves 12 being no less than ten. The grooves 12 are used to increase the contact area between the wastewater and the adsorption plate 2, thereby further increasing the adsorption area and improving the adsorption effect.

[0029] In this invention, wastewater enters the tank 1 through the water distribution assembly and falls onto the uppermost adsorption plate 2. As the wastewater flows on the adsorption plate 2, the adsorbent material on the adsorption plate 2 adsorbs the pentanediamine in the wastewater. Multiple adsorption plates 2 are spirally distributed inside the tank 1. This spirally interlaced three-dimensional structure greatly increases the contact area and contact time between the wastewater and the adsorption plates 2, allowing the wastewater to flow in a spiral downward path within the device, fully contacting the adsorbent on each adsorption plate 2, significantly improving the adsorption effect, and thus increasing the recovery rate of pentanediamine.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A device for recovering pentanediamine from nylon production wastewater, comprising a tank (1), characterized in that, The tank (1) has a wastewater inlet at the top, and a water distribution assembly is installed inside the wastewater inlet. The tank (1) has multiple mounting holes on its side, and the mounting holes are spirally distributed on the tank (1). Adsorption plates (2) are inserted into multiple mounting holes. The multiple adsorption plates (2) are spirally distributed inside the tank (1). The multiple adsorption plates (2) are parallel to each other and staggered. An installation block (3) is fixedly installed at one end of the adsorption plate (2) outside the tank (1). A locking component for locking the installation block (3) is provided on the tank (1). A drain pipe (4) is installed at the lower end of the tank (1). A control valve is installed inside the drain pipe (4).

2. The apparatus for recovering pentanediamine from nylon production wastewater according to claim 1, characterized in that, The locking assembly includes a limiting block (5) fixedly installed on the side of the tank (1), with limiting holes symmetrically opened on the limiting block (5) and insertion holes (6) symmetrically opened on the mounting block (3). The locking assembly includes a strip rod (7) and two insertion rods (8) respectively vertically fixedly installed at both ends of the strip rod (7). One end of the insertion rod (8) passes through the limiting hole and is inserted into the insertion hole (6).

3. The device for recovering pentanediamine from nylon production wastewater according to claim 1, characterized in that, The water distribution assembly includes a rectangular block (9) fixedly installed inside the wastewater inlet, multiple water distribution branch pipes (10) vertically fixedly installed on the lower surface of the rectangular block (9), and an inlet pipe (11) fixedly installed on the upper surface of the rectangular block (9). The rectangular block (9) has a rectangular cavity inside. The multiple water distribution branch pipes (10) and the inlet pipe (11) are all connected to the rectangular cavity. The multiple water distribution branch pipes (10) are located directly above the uppermost adsorption plate (2). The lower ends of the multiple water distribution branch pipes (10) are sealed. Multiple water distribution holes (13) are opened on the sides of the multiple water distribution branch pipes (10).

4. The apparatus for recovering pentanediamine from nylon production wastewater according to claim 1, characterized in that, A sealing strip (14) is fixedly installed on the adsorption plate (2), and the side of the sealing strip (14) is in close contact with the side of the tank body (1).

5. The apparatus for recovering pentanediamine from nylon production wastewater according to claim 1, characterized in that, The adsorption plate (2) is fixedly installed with a guide plate (15) at one end inside the tank (1), and the guide plate (15) is parallel to the adsorption plate (2).

6. The apparatus for recovering pentanediamine from nylon production wastewater according to claim 1, characterized in that, The adsorption plate (2) has multiple grooves (12) on its upper surface, and the number of grooves (12) is not less than ten.

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