Recovery tower structure of N-methyl pyrrolidone

Abstract

The utility model discloses an N-methyl pyrrolidone recovery tower structure which comprises a collecting cylinder, the upper side wall of the collecting cylinder is movably connected with a filter cylinder, the upper side wall of the filter cylinder is fixedly connected with a cooling box, the upper side wall of the cooling box is fixedly connected with an air inlet pipe, the lower end of the air inlet pipe is fixedly connected with a condensation pipe, and the lower end of the condensation pipe is fixedly connected with an air outlet pipe. The middle part of the condensation pipe is fixedly connected with a filter box; and the lower end of the condensation pipe is fixedly connected with a pressurizing assembly, an atomizing nozzle is installed on the lower side wall of the pressurizing assembly, and a filtering frame is installed in the filtering cylinder. According to the NMP recycling device, through operations of filtering, condensation, pressurized spraying, impurity adsorption and the like, the NMP recycling efficiency can be effectively improved, environmental pollution is reduced, the NMP recycling rate is greatly improved, resources are saved, meanwhile, the environment is protected, liquid can be pressurized through the pressurization assembly, the liquid can be atomized through the atomization spray head, and the NMP recycling efficiency is improved. Therefore, impurities in the liquid can be effectively absorbed by the filter frame.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical industry, in particular to a recovery tower structure of N-methylpyrrolidone. Background Art

[0002] N-Methylpyrrolidone (NMP) is a colorless, transparent, oily liquid with low volatility and good thermal and chemical stability. It is widely used in industries such as lithium batteries, medicine, pesticides, pigments, cleaning agents, and insulating materials. Due to the high price of NMP, directly discharging production tail gas containing NMP will cause waste of resources and environmental pollution. Therefore, it is particularly important to develop efficient NMP recovery technology. Utility Model Content

[0003] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art, and to provide a recovery tower structure for N-methylpyrrolidone, which can effectively improve the recovery efficiency of NMP through operations such as filtration, condensation, pressurized spraying and impurity adsorption, reduce environmental pollution, greatly improve the recovery rate of NMP, save resources and protect the environment at the same time;

[0004] The device is provided with a booster device and an atomizing nozzle. The booster component can boost the pressure of the liquid, and the atomizing nozzle can atomize the liquid. The combination of the two can effectively enable the filter frame to effectively absorb impurities in the liquid, thereby improving the purity of NMP recovery.

[0005] The utility model also provides a recovery tower structure of N-methylpyrrolidone, comprising: a collecting cylinder, the upper side wall of the collecting cylinder is movably connected to a filter cylinder, the upper side wall of the filter cylinder is fixedly connected to a cooling box, the upper side wall of the cooling box is fixedly connected to an air intake pipe, the lower end of the air intake pipe is fixedly connected to a condenser, and the middle part of the condenser is fixedly connected to a filter box;

[0006] The lower end of the condenser is fixedly connected with a booster assembly, the lower side wall of the booster assembly is installed with an atomizing nozzle, and the interior of the filter cartridge is installed with a filter frame.

[0007] According to the N-methylpyrrolidone recovery tower structure, the outer side wall of the collecting cylinder is fixedly connected to a support base, and the outer side wall of the support base is fixedly connected to a plurality of support legs to support the entire device.

[0008] According to the N-methylpyrrolidone recovery tower structure, a condensed water inlet pipe and a condensed water outlet pipe are provided on the left side wall of the cooling box for condensed water circulation.

[0009] According to the N-methylpyrrolidone recovery tower structure, the lower inner wall of the collecting cylinder is fixedly connected with a liquid guide platform to facilitate the gathering of the filtered N-methylpyrrolidone.

[0010] According to the N-methylpyrrolidone recovery tower structure, the lower side wall of the collecting cylinder is fixedly connected with a water outlet pipe, and the middle part of the water outlet pipe is fixedly connected with a control valve for controlling the discharge of N-methylpyrrolidone.

[0011] According to the N-methylpyrrolidone recovery tower structure, a sealing sleeve is fixedly connected to the outer wall of the filter cylinder near the lower side, and the sealing sleeve cooperates with the upper wall of the collection cylinder to improve the sealing effect between the filter cylinder and the collection cylinder.

[0012] According to the N-methylpyrrolidone recovery tower structure, three layers of ceramic particle layers are arranged inside the filter box, and the particle sizes of the three layers of ceramic particle layers gradually decrease from top to bottom, which is convenient for filtering particles in the exhaust gas.

[0013] According to the N-methylpyrrolidone recovery tower structure, an active carbon layer is provided inside the filter frame, which can effectively absorb impurities in the N-methylpyrrolidone, and the atomizing nozzle is directly opposite to the upper side wall of the filter frame.

[0014] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0016] Figure 1 This is a schematic structural diagram of a recovery tower structure of N-methylpyrrolidone according to the utility model;

[0017] Figure 2 This is an internal schematic diagram of a recovery tower structure of N-methylpyrrolidone according to the utility model;

[0018] Figure 3 This is a front schematic diagram of a recovery tower structure of N-methylpyrrolidone according to the utility model;

[0019] Figure 4 The utility model is a schematic top view of a recovery tower structure of N-methylpyrrolidone.

[0020] Legend:

[0021] 1. Cooling box; 101. Condensate inlet pipe; 102. Condensate outlet pipe; 2. Filter cartridge; 201. Sealing sleeve; 202. Filter rack; 3. Collecting cartridge; 301. Liquid guide table; 302. Outlet pipe; 303. Control valve; 4. Support seat; 401. Support leg; 5. Condenser; 501. Inlet pipe; 502. Filter box; 503. Booster assembly; 504. Atomizing nozzle. DETAILED DESCRIPTION

[0022] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0023] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present utility model; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a communication between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0024] Reference Figure 1-4 The utility model embodiment provides a recovery tower structure of N-methylpyrrolidone, which includes: a collecting cylinder 3, the outer side wall of the collecting cylinder 3 is fixedly connected to a support seat 4, the outer side wall of the support seat 4 is fixedly connected to a plurality of support legs 401 for supporting the entire device, the lower inner wall of the collecting cylinder 3 is fixedly connected to a liquid guide platform 301 for facilitating the gathering of filtered N-methylpyrrolidone, the lower side wall of the collecting cylinder 3 is fixedly connected to a water outlet pipe 302, and the middle part of the water outlet pipe 302 is fixedly connected to a control valve 303 for controlling the discharge of N-methylpyrrolidone.

[0025] The upper side wall of the collecting cylinder 3 is movably connected to the filter cylinder 2, and the upper side wall of the filter cylinder 2 is fixedly connected to the cooling box 1. The left side wall of the cooling box 1 is provided with a condensate inlet pipe 101 and a condensate outlet pipe 102 for condensate circulation. The upper side wall of the cooling box 1 is fixedly connected to the air intake pipe 501, the lower end of the air intake pipe 501 is fixedly connected to the condenser 5, and the middle part of the condenser 5 is fixedly connected to the filter box 502. Three layers of ceramic particle layers are arranged inside the filter box 502. The particle size of the three layers of ceramic particle layers gradually decreases from top to bottom, which is convenient for filtering particles in the exhaust gas.

[0026] The lower end of the condenser 5 is fixedly connected to a boost component 503, and an atomizing nozzle 504 is installed on the lower side wall of the boost component 503. A filter frame 202 is installed inside the filter cartridge 2. A sealing sleeve 201 is fixedly connected to the outer wall of the filter cartridge 2 and close to the lower side. The sealing sleeve 201 cooperates with the upper side wall of the collecting cartridge 3 to improve the sealing effect between the filter cartridge 2 and the collecting cartridge 3. An active carbon layer is provided inside the filter frame 202, which can effectively absorb impurities in N-methylpyrrolidone. The atomizing nozzle 504 is directly opposite to the upper side wall of the filter frame 202.

[0027] The electrical components appearing in this article are all electrically connected to an external main controller, and the main controller can be a conventional known device for control such as a computer, and the electrical components appearing in this article are all electrically connected to an external power supply.

[0028] Working principle: First, the waste gas containing NMP is introduced into the condenser 5 through the air inlet pipe 501. The waste gas in the condenser 5 is liquefied into liquid under the cooling effect of the coolant. During this period, the filter box 502 can effectively filter the large particles of impurities in the liquid, and then the booster component 503 can boost the pressure of the liquid, and the atomizing nozzle 504 can atomize the liquid and spray it toward the filter frame 202. The activated carbon layer in the filter frame 202 can effectively absorb the impurities in the atomized liquid. Finally, the filtered atomized liquid is gathered in the collection tube 3 to collect the NMP.

[0029] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A recovery tower structure for N-methylpyrrolidone, characterized in that: include: A collecting cylinder (3), wherein the upper side wall of the collecting cylinder (3) is movably connected to a filter cylinder (2), the upper side wall of the filter cylinder (2) is fixedly connected to a cooling box (1), the upper side wall of the cooling box (1) is fixedly connected to an air intake pipe (501), the lower end of the air intake pipe (501) is fixedly connected to a condenser pipe (5), and the middle part of the condenser pipe (5) is fixedly connected to a filter box (502); The lower end of the condenser tube (5) is fixedly connected to a booster assembly (503), the lower side wall of the booster assembly (503) is installed with an atomizing nozzle (504), and the interior of the filter cartridge (2) is installed with a filter frame (202).

2. The N-methylpyrrolidone recovery tower structure according to claim 1, characterized in that: The outer side wall of the collecting cylinder (3) is fixedly connected to a support seat (4), and the outer side wall of the support seat (4) is fixedly connected to a plurality of support legs (401).

3. The N-methylpyrrolidone recovery tower structure according to claim 1, characterized in that: The left side wall of the cooling box (1) is provided with a condensed water inlet pipe (101) and a condensed water outlet pipe (102).

4. The N-methylpyrrolidone recovery tower structure according to claim 1, characterized in that: The lower inner wall of the collecting cylinder (3) is fixedly connected with a liquid guide platform (301).

5. The N-methylpyrrolidone recovery tower structure according to claim 1, characterized in that: A water outlet pipe (302) is fixedly connected to the lower side wall of the collecting cylinder (3), and a control valve (303) is fixedly connected to the middle of the water outlet pipe (302).

6. The N-methylpyrrolidone recovery tower structure according to claim 1, characterized in that: A sealing sleeve (201) is fixedly connected to the outer side wall of the filter cylinder (2) and close to the lower side, and the sealing sleeve (201) cooperates with the upper side wall of the collection cylinder (3).

7. The N-methylpyrrolidone recovery tower structure according to claim 1, characterized in that: Three layers of ceramic particle layers are arranged inside the filter box (502), and the particle sizes of the three layers of ceramic particle layers gradually decrease from top to bottom.

8. The N-methylpyrrolidone recovery tower structure according to claim 1, characterized in that: An active carbon layer is provided inside the filter frame (202), and the atomizing nozzle (504) is directly opposite to the upper side wall of the filter frame (202).

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