Fireproof and explosion-proof heating furnace capable of automatically volatilizing electrolyte
By setting up nitrogen branches and nitrogen main circuits at the bottom of the heating chamber, nitrogen is quickly introduced to reduce the oxygen content, which solves the safety hazards caused by the existence of oxygen during the heating process of the existing electrolyte furnace, and realizes the formation of an oxygen-free environment and the safety of the heating process.
Patent Information
- Application Number
- CN202420574312.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-22
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2034-03-22
AI Technical Summary
The existing electrolyte leverage furnace cannot completely avoid the existence of oxygen during the heating process, resulting in safety hazards and risk of explosion accidents.
A fire-proof and explosion-proof heating furnace for automated volatile electrolyte was designed. By setting up a nitrogen branch vertically at the bottom of the heating chamber, nitrogen main circuit and air pressure valve quickly pass into nitrogen to reduce the oxygen content, ensuring that the heating chamber is filled with nitrogen and forming an oxygen-free environment.
By creating an oxygen-free environment, safety hazards are eliminated, the risk of scrap batteries explode during heating is eliminated, and the safety of the heating process is ensured.
Smart Images
Figure CN222790147U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electrolyte volatilization furnaces, in particular to a fireproof and explosion-proof heating furnace for automatically volatilizing electrolyte. Background Art
[0002] With the vigorous development of industrial manufacturing, energy conservation and environmental protection have gradually intensified, especially in the field of battery recycling. More and more types of battery recycling and reuse processes are required. In order to ensure the quality and quantity of scrapped battery recycling and orderly production, it is necessary to heat the electrolyte of the scrapped battery to volatilize it, and it needs to be done in an oxygen-free environment. This is because scrapped batteries are very likely to explode if they come into contact with oxygen during the heating process. Existing electrolyte furnaces generally use vacuum pumping before starting, but oxygen will still be brought in and out when the material is in and out, which poses a safety hazard. Utility Model Content
[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a fireproof and explosion-proof heating furnace for automatically volatilizing electrolyte, which can ensure that the interior is heated in 0 oxygen, thereby eliminating safety hazards and preventing the occurrence of explosion accidents of scrapped batteries.
[0004] The technical solution of the utility model is as follows:
[0005] A fireproof and explosion-proof heating furnace for automatically volatilizing electrolyte, comprising a furnace body, a nitrogen input pipeline and an exhaust gas output pipeline, wherein the furnace body comprises a feed port, a feed slope, a plurality of heating chambers, a feed slope, a natural cooling chamber and a feed port in sequence from feeding to discharging, the nitrogen input pipeline comprises an air pressure valve, a nitrogen main road and a plurality of nitrogen branches, the plurality of nitrogen branches are vertically arranged below the plurality of heating chambers, and the upper end of each nitrogen branch is communicated with a heating chamber, and the lower end of each nitrogen branch is communicated with the nitrogen main road located at the bottom of the furnace body, one end of the nitrogen main road is connected to the air pressure valve, the exhaust gas output pipeline is arranged at the top of the furnace body, an exhaust gas outlet connected to a centrifugal fan is arranged in the middle of the exhaust gas output pipeline, and a first suction hood and a second suction hood are respectively connected at both ends of the exhaust gas output pipeline, the first suction hood is located above the feed slope and close to the heating chamber, and the second suction hood is located above the feed slope and close to the heating chamber.
[0006] Furthermore, oxygen content detectors are provided on the top surfaces of the ends of the first heating chamber and the last heating chamber of the plurality of heating chambers.
[0007] Furthermore, the plurality of heating chambers include three first heating chambers in the front section and five second heating chambers in the rear section, the top and bottom surfaces of the first heating chambers are both provided with a plurality of heating tubes, and the bottom surface of the second heating chambers is only provided with a plurality of heating tubes.
[0008] Furthermore, a plurality of mesh plates are arranged side by side on the top of the natural cooling chamber.
[0009] Furthermore, a pressure relief port is provided on the exhaust gas output pipe.
[0010] Compared with the prior art, the beneficial effect of the utility model is that: the utility model vertically arranges a plurality of nitrogen branches at the bottom of a plurality of heating chambers, the plurality of nitrogen branches are connected to the nitrogen main road at the bottom of the furnace body, the nitrogen main road is connected to the nitrogen gas source through an air pressure valve, when started, the air pressure valve is opened to quickly pass nitrogen through the plurality of nitrogen branches, thereby quickly reducing the oxygen content in the plurality of heating chambers, so that the plurality of heating chambers are filled with nitrogen, and when the oxygen content detectors at both ends of the plurality of heating chambers detect that the oxygen returns to zero, the air pressure valve is adjusted to allow a small amount of nitrogen to enter the plurality of nitrogen branches to maintain the nitrogen range inside the plurality of heating chambers, and by creating an oxygen-free environment, it can be ensured that the scrapped batteries are heated in 0 oxygen, thereby eliminating safety hazards and preventing the occurrence of explosion accidents of scrapped batteries. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. 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 creative work.
[0012] Figure 1 A schematic diagram of the external structure of a fireproof and explosion-proof heating furnace for automatically volatilizing electrolyte provided by the utility model;
[0013] Figure 2 The utility model provides a schematic diagram of the internal structure of a fireproof and explosion-proof heating furnace for automatically volatilizing electrolyte. DETAILED DESCRIPTION
[0014] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.
[0015] In order to illustrate the technical solution of the present invention, specific embodiments are provided below for illustration.
[0016] Example
[0017] See also Figure 1 , Figure 2The present embodiment provides a fireproof and explosion-proof heating furnace for automatically volatilizing electrolyte, comprising a furnace body 1, a nitrogen input pipeline 2 and an exhaust gas output pipeline 3. The furnace body 1 comprises a feed port 11, a loading slope 12, a plurality of heating chambers 13, a loading slope 14, a natural cooling chamber 15 and a discharge port 16 from feeding to discharging, wherein the plurality of heating chambers 13 comprise three first heating chambers 131 in the front section and five second heating chambers 132 in the rear section, the top and bottom surfaces of the first heating chamber 131 are both provided with a plurality of heating tubes, and the bottom surface of the second heating chamber 132 is only provided with a plurality of heating tubes, the top surfaces of the ends of the first heating chamber and the last heating chamber are both provided with an oxygen content detector 4, and a plurality of mesh plates are arranged side by side on the top of the natural cooling chamber 15, and air is allowed to enter through a plurality of through holes of the mesh plates for natural cooling. The nitrogen input pipeline 2 includes an air pressure valve 21, a nitrogen main road 22 and eight nitrogen branches 23. The eight nitrogen branches 23 are vertically arranged below the eight heating chambers 13, and the upper end of each nitrogen branch 23 is connected to a heating chamber 13, and the lower end of each nitrogen branch 23 is connected to the nitrogen main road 22 located at the bottom of the furnace body 1. One end of the nitrogen main road 22 is connected to the air pressure valve 21, and the nitrogen gas source is connected through the air pressure valve 21. The exhaust gas output pipeline 3 is arranged at the top of the furnace body 1, and the middle part of the exhaust gas output pipeline 3 is provided with an exhaust gas outlet 31 connected to the centrifugal fan. The exhaust gas output pipeline 3 is provided with a pressure relief port 32 for explosion prevention. The two ends of the exhaust gas output pipeline 3 are respectively connected to a first suction hood 33 and a second suction hood 34. The first suction hood 33 is located above the upper material slope 12 and close to the heating chamber 13, and the second suction hood 34 is located above the lower material slope 14 and close to the heating chamber 13.
[0018] During startup, the air pressure valve 21 is opened to quickly introduce nitrogen through a plurality of nitrogen branches 23, thereby quickly reducing the oxygen content in a plurality of heating chambers 13, so that the plurality of heating chambers 13 are filled with nitrogen. When the oxygen content detectors 4 at both ends detect that the oxygen is zero, the air pressure valve 21 is adjusted to allow a small amount of nitrogen to enter the plurality of nitrogen branches 23, so as to maintain the nitrogen range inside the plurality of heating chambers 13 and prevent excessive nitrogen from affecting the temperature in the furnace. By creating an oxygen-free environment, it is possible to ensure that the scrapped batteries are heated in 0 oxygen, thereby eliminating safety hazards and preventing the occurrence of explosion accidents of scrapped batteries. The electrolyte vapor of the scrapped batteries is then discharged from the first suction hood 33 and the second suction hood 34 at both ends through the exhaust gas output pipe 3 from the exhaust gas outlet 31 to the exhaust gas treatment device for treatment.
[0019] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A fireproof and explosion-proof heating furnace for automatically volatilizing electrolyte, characterized in that: The invention comprises a furnace body, a nitrogen input pipeline and an exhaust gas output pipeline. The furnace body comprises a feed port, a feed slope, a plurality of heating chambers, a feed slope, a natural cooling chamber and a feed port in sequence from feeding to discharging. The nitrogen input pipeline comprises an air pressure valve, a nitrogen main road and a plurality of nitrogen branches. The plurality of nitrogen branches are vertically arranged below the plurality of heating chambers, and the upper end of each nitrogen branch is communicated with a heating chamber, and the lower end of each nitrogen branch is communicated with the nitrogen main road located at the bottom of the furnace body. One end of the nitrogen main road is connected to the air pressure valve. The exhaust gas output pipeline is arranged at the top of the furnace body. An exhaust gas outlet connected to a centrifugal fan is arranged in the middle of the exhaust gas output pipeline. The two ends of the exhaust gas output pipeline are respectively connected with a first suction hood and a second suction hood. The first suction hood is located above the feed slope and close to the heating chamber, and the second suction hood is located above the feed slope and close to the heating chamber.
2. The fireproof and explosion-proof heating furnace for automatically volatilizing electrolyte according to claim 1, characterized in that: The end top surfaces of the first heating chamber and the last heating chamber of the plurality of heating chambers are both provided with oxygen content detectors.
3. A fireproof and explosion-proof heating furnace for automatic volatilization of electrolyte according to claim 1 or 2, characterized in that: The plurality of heating chambers include three first heating chambers in the front section and five second heating chambers in the rear section. The top and bottom surfaces of the first heating chambers are both provided with a plurality of heating tubes, and the bottom surface of the second heating chambers is only provided with a plurality of heating tubes.
4. The fireproof and explosion-proof heating furnace for automatically volatilizing electrolyte according to claim 1, characterized in that: A plurality of mesh plates are arranged side by side on the top of the natural cooling chamber.
5. The fireproof and explosion-proof heating furnace for automatically volatilizing electrolyte according to claim 1, characterized in that: The exhaust gas output pipeline is provided with a pressure relief port.