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CN-224221065-U - Freezing type NMP recycling all-in-one machine

CN224221065UCN 224221065 UCN224221065 UCN 224221065UCN-224221065-U

Abstract

The application relates to the technical field of lithium battery waste gas treatment devices, in particular to a frozen NMP (N-methyl pyrrolidone) recycling all-in-one machine, which comprises a frame, a filtering component, a waste heat recycling component, a first cooling component, a second cooling component and a separating component, wherein the filtering component, the waste heat recycling component, the first cooling component, the second cooling component and the separating component are arranged on the frame and are sequentially connected, the separating component is connected with the waste heat recycling component, the first cooling component comprises a first cooler and a first cooling pipeline piece connected with the first cooler, the second cooling component comprises a second cooler, the second cooling pipeline piece is connected with the second cooling pipeline piece and a liquid receiving chassis, the liquid receiving chassis is arranged on the frame and is obliquely arranged, and the liquid receiving chassis is connected with a liquid receiving and draining pipe. The waste gas enters the integrated machine and is subjected to filtering, primary cooling, secondary cooling, tertiary cooling and gas-liquid separation in sequence, even a large amount of waste gas can be fully condensed, so that the concentration of NMP in tail exhaust gas is reduced, and meanwhile, the condensed waste gas returns to the waste heat recovery assembly again to cool high-temperature waste gas, so that the required energy consumption is effectively reduced.

Inventors

  • XU ZHENGPENG

Assignees

  • 东莞市鹏锦机械科技有限公司

Dates

Publication Date
20260512
Application Date
20250609

Claims (7)

  1. 1. The freezing type NMP recycling all-in-one machine comprises a frame (1) and is characterized by further comprising a filtering component (2), a waste heat recycling component (3), a first cooling component (4), a second cooling component (5) and a separating component (6), wherein the filtering component, the waste heat recycling component (3), the first cooling component (3), the separating component (6) and the liquid receiving chassis (53) are sequentially connected, the first cooling component (4) comprises a first cooler (41) and a first cooling pipeline (42) connected to the first cooler (41), the second cooling component (5) comprises a second cooler (51), a second cooling pipeline (52) connected to the second cooler (51) and the liquid receiving chassis (53), the liquid receiving chassis (53) is arranged on the frame (1) in an inclined mode, and the liquid receiving chassis (53) is connected with a liquid receiving drain pipe (531).
  2. 2. The frozen type NMP recycling all-in-one machine according to claim 1, wherein the liquid receiving base plate (53) is located below the second cooler (51), the liquid receiving and draining pipe (531) is connected to the lower side of the liquid receiving base plate (53), and the liquid receiving base plate (53) is provided with a liquid level meter (54).
  3. 3. A frozen NMP recycling all-in-one machine according to claim 1, characterized in that the filter assembly (2) comprises a fan (21) and a plate filter (22), one side of the plate filter (22) faces the fan (21), and the other side of the plate filter (22) is connected with the waste heat recycling assembly (3).
  4. 4. A frozen NMP recycling all-in-one machine according to claim 3, characterized in that the waste heat recycling assembly (3) comprises a waste heat exchanger (31), the waste heat exchanger (31) having four communication ports, one connected to the plate filter (22), one connected to the first cooler (41), one connected to the separating assembly (6), one connected as outlet wind for tail-row.
  5. 5. A frozen NMP recycling all-in-one machine according to claim 4, characterized in that the separation assembly (6) comprises a wire mesh demister (61) connected to the second cooler (51) and a separation drain (62) connected to the wire mesh demister (61), the wire mesh demister (61) being connected to a communication port.
  6. 6. A frozen NMP recycling all-in-one machine according to any one of claims 1-5, characterized in that it further comprises a detection assembly (7), said detection assembly (7) comprising a number of temperature sensors (71), a number of said temperature sensors (71) being located above said first cooler (41) and said second cooler (51).
  7. 7. The frozen type NMP recycling all-in-one machine according to any one of claims 1 to 5, wherein the rack (1) comprises a base (11), a supporting frame (12) arranged on the base (11) and a shell (13) which is arranged on the supporting frame (12) in a coating manner, and the shell (13) is provided with a view mirror (131) and an access door (132).

Description

Freezing type NMP recycling all-in-one machine Technical Field The application relates to the technical field of lithium battery waste gas treatment devices, in particular to a freezing type NMP recycling all-in-one machine. Background Lithium batteries can emit a large amount of NMP-containing exhaust gases during production, which require treatment to be discharged. At present, the conventional treatment mode is to recycle NMP waste gas by using a freezing method, namely, the waste gas is introduced into an NMP recycling device, and the waste gas is cooled in the NMP recycling device, so that NMP is condensed from the waste gas, and then is recycled through collection and purification. However, the conventional NMP recycling device adopts a single-stage cooling structure, waste gas is discharged after being subjected to single-stage cooling condensation, on one hand, the cooling structure needs to rapidly cool high-temperature waste gas to cause energy consumption rise, and on the other hand, when the high-temperature waste gas treatment capacity is large, the single-stage cooling structure is difficult to ensure the treatment effect on the waste gas to cause the residual concentration of discharged waste gas to exceed the standard. Disclosure of utility model The application aims to provide a freezing type NMP recycling integrated machine, which aims to solve the problems that an NMP recycling treatment device in the related art is high in energy consumption and difficult to treat a large amount of waste gas, and improves the treatment effect and the treatment efficiency of the NMP recycling treatment device. The embodiment of the application provides a freezing type NMP (N-methyl pyrrolidone) recycling all-in-one machine, which comprises a rack, a filtering component, a waste heat recycling component, a first cooling component, a second cooling component and a separating component, wherein the filtering component, the waste heat recycling component, the first cooling component, the second cooling component and the separating component are arranged on the rack and are sequentially connected, the separating component is connected with the waste heat recycling component, the first cooling component comprises a first cooler and a first cooling pipeline part connected with the first cooler, the second cooling component comprises a second cooler, a second cooling pipeline part connected with the second cooler and a liquid receiving chassis, the liquid receiving chassis is arranged on the rack and is obliquely arranged, and the liquid receiving chassis is connected with a liquid receiving and draining pipe. Further, the liquid receiving chassis is located below the second cooler, the liquid receiving and discharging pipe is connected to one side of the liquid receiving chassis, which is lower than the liquid receiving chassis, and the liquid receiving chassis is provided with a liquid level meter. Further, the filter assembly comprises a fan and a plate filter, one side of the plate filter faces the fan, and the other side of the plate filter is connected with the waste heat recovery assembly. Further, the waste heat recovery assembly comprises a waste heat exchanger, the waste heat exchanger is provided with four communication ports, one communication port is connected with the plate filter, the other communication port is connected with the first cooler, the other communication port is connected with the separation assembly, and the other communication port is used as outlet air for tail exhaust. Further, the separation assembly comprises a wire mesh demister connected with the second cooler and a separation liquid discharge pipe connected with the wire mesh demister, and the wire mesh demister is connected with the communication port. Further, the device also comprises a detection assembly, wherein the detection assembly comprises a plurality of temperature sensors, and the temperature sensors are positioned above the first cooler and the second cooler. Further, the frame comprises a base, a supporting frame arranged on the base and a shell which is arranged on the supporting frame in a coating mode, and the shell is provided with a view mirror and an access door. The application has the beneficial effects that: 1. According to the frozen NMP recycling all-in-one machine, the plurality of functional components are sequentially arranged on the frame, waste gas enters the all-in-one machine and then sequentially enters the filtering component, the waste heat recycling component, the first cooling component, the second cooling component and the separating component for filtering, primary cooling, secondary cooling, tertiary cooling and gas-liquid separation, the waste heat recycling component, the first cooling component and the second cooling component can cool the waste gas step by step, the treatment time of the waste gas is prolonged, even a large amount of waste gas can be fully condensed so as to reduce