阅读说明：本技术 一种废旧锂离子电池带电破碎防火灭火的装置 (Device for charged crushing, fire prevention and fire extinguishment of waste lithium ion battery ) 是由 张涛 黄有华 陈志鹏 陈建军 于 2020-04-23 设计创作，主要内容包括：本发明涉及废旧电池破碎领域,提供了一种废旧锂离子电池带电破碎防火灭火的装置,包括振动输送机、振动马达、红外线火焰探测器、温度传感器、液氮输送管、液氮电磁阀、液氮机、制氮机和电控柜,该振动输送机设有进料口以及与进料口连通的腔体,腔体内设有液氮喷射管,制氮机、液氮机、液氮电磁阀、液氮喷射管依次通过液氮输送管连接,液氮喷射管上设有多个间隔设置的液氮喷头,红外线火焰探测器、温度传感器和液氮电磁阀皆与电控柜通信连接。本发明采用的是液氮隔绝氧气和降温保护来对废旧锂离子电池破碎料进行防火灭火,不需用水对带电电池进行特殊处理,生产周期短,且氮气挥发不影响后续分选,分离效果好,自动化程度更高更安全。(The invention relates to the field of waste battery crushing, and provides a device for charged crushing, fire prevention and fire extinguishment of waste lithium ion batteries, which comprises a vibrating conveyor, a vibrating motor, an infrared flame detector, a temperature sensor, a liquid nitrogen conveying pipe, a liquid nitrogen electromagnetic valve, a liquid nitrogen machine, a nitrogen making machine and an electric control cabinet, wherein the vibrating conveyor is provided with a feeding hole and a cavity communicated with the feeding hole, a liquid nitrogen injection pipe is arranged in the cavity, the nitrogen making machine, the liquid nitrogen electromagnetic valve and the liquid nitrogen injection pipe are sequentially connected through the liquid nitrogen conveying pipe, a plurality of liquid nitrogen spray heads arranged at intervals are arranged on the liquid nitrogen injection pipe, and the infrared flame detector, the temperature sensor and the liquid. The invention adopts liquid nitrogen to isolate oxygen and perform cooling protection to prevent and extinguish fire for the crushed material of the waste lithium ion battery, does not need water to perform special treatment on the charged battery, has short production period, does not influence subsequent separation due to the volatilization of nitrogen, has good separation effect, and has higher automation degree and higher safety.)

1. The device for charged crushing, fire prevention and fire extinguishment of the waste lithium ion battery is characterized by comprising a vibrating conveyor (1) and a vibrating motor (5), wherein the vibrating conveyor (1) is provided with a feeding hole (2) and a cavity communicated with the feeding hole (2), and the vibrating motor (5) is used for driving materials in the cavity to be conveyed forwards;

the device is still including infrared flame detector (3) that is used for detecting the interior naked light signal of cavity, be used for the monitoring temperature sensor (4), liquid nitrogen conveyer pipe (6), liquid nitrogen solenoid valve (7), liquid nitrogen machine (8), nitrogen making machine (9) and automatically controlled cabinet (10) of material temperature in the cavity, be equipped with liquid nitrogen injection pipe (14) along its inner surface setting in the cavity, nitrogen making machine (9), liquid nitrogen machine (8), liquid nitrogen solenoid valve (7) liquid nitrogen injection pipe (14) loop through liquid nitrogen conveyer pipe (6) and connect, be equipped with liquid nitrogen shower nozzle (15) that a plurality of intervals set up on liquid nitrogen injection pipe (14), infrared flame detector (3), temperature sensor (4) and liquid nitrogen solenoid valve (7) all with automatically controlled cabinet (10) communication connection.

2. The charged crushing, fire preventing and extinguishing device for the waste lithium ion batteries according to claim 1, wherein the liquid nitrogen injection pipe (14) is welded on the inner surface of the cavity through a liquid nitrogen injection pipe fixing block (16).

3. The charged crushing, fire preventing and extinguishing device for the waste lithium ion batteries according to claim 1, wherein the infrared flame detector (3) comprises an infrared flame detector (11), an adjusting screw (12) and a universal disc (13), and the universal disc (13) is connected with the infrared flame detector (11) through the adjusting screw (12) to adjust the detection direction of the infrared flame detector (11).

Technical Field

The invention relates to the field of waste battery crushing, in particular to a device for charged crushing, fire prevention and fire extinguishment of waste lithium ion batteries.

Background

Waste power batteries are gradually a hot spot of research in the field of resource recovery because of containing various valuable metal components. In the related art, when the waste lithium ion batteries are broken in a charged manner, broken materials of the waste lithium ion batteries generate heat in the conveying process and even generate open fire, so that the potential safety hazard coefficient is high, and the health and safety of operators can be endangered in serious cases.

Disclosure of Invention

Aiming at the problems, the invention provides a device for charged crushing, fire prevention and fire extinguishment of waste lithium ion batteries.

The purpose of the invention is realized by adopting the following technical scheme:

the invention provides a device for charged crushing, fire prevention and fire extinguishment of waste lithium ion batteries, which comprises a vibrating conveyor and a vibrating motor, wherein the vibrating conveyor is provided with a feeding hole and a cavity communicated with the feeding hole, and the vibrating motor is used for driving materials in the cavity to be conveyed forwards.

The device is still including the infrared flame detector who is used for detecting the interior naked light signal of cavity, be used for the monitoring temperature sensor, liquid nitrogen conveyer pipe, liquid nitrogen solenoid valve, liquid nitrogen machine, nitrogen making machine and automatically controlled cabinet of material temperature in the cavity, be equipped with the liquid nitrogen injection pipe that sets up along its inner surface in the cavity, nitrogen making machine, liquid nitrogen solenoid valve the liquid nitrogen injection pipe loops through liquid nitrogen duct connections, be equipped with the liquid nitrogen shower nozzle that a plurality of intervals set up on the liquid nitrogen injection pipe, infrared flame detector, temperature sensor and liquid nitrogen solenoid valve all with automatically controlled cabinet communication connection.

In one implementation, the liquid nitrogen injection pipe is welded on the inner surface of the cavity through a liquid nitrogen injection pipe fixing block.

In one implementation mode, the infrared flame detector comprises an infrared flame detector, an adjusting screw and a universal disc, and the universal disc is connected with the infrared flame detector through the adjusting screw so as to adjust the detection direction of the infrared flame detector.

The invention has the beneficial effects that: broken material of old and useless lithium ion battery after the coarse crushing is sent into the cavity of jigging conveyer from the feed inlet down, material in messenger's cavity is carried at the uniform velocity forward through vibrating motor's effect, because broken material of old and useless lithium ion battery can generate heat in transportation process or even produce the naked light, give a feedback for automatically controlled cabinet after infrared flame detector detects the naked light signal on the way in the transport, trigger the liquid nitrogen solenoid valve switch of one side immediately after the signal feedback, the liquid nitrogen can form liquid nitrogen behind nitrogen generator and the liquid nitrogen generator and spray toward the cavity inside through the pipeline, in order to reach isolated air and reduce the fire extinguishing action of temperature. In addition, if the broken material of the waste lithium ion battery only generates heat in the conveying process and no naked flame appears, the feedback can be monitored in real time through a temperature sensor arranged below the cavity, if the abnormal temperature inside the cavity is detected, the switch of the liquid nitrogen electromagnetic valve can be triggered, the energy density inside the cavity is reduced through the low-temperature action of the liquid nitrogen, and therefore the purpose of controlling the broken material not to burn is achieved. The invention adopts liquid nitrogen to isolate oxygen and perform cooling protection to prevent and extinguish fire for the crushed material of the waste lithium ion battery, does not need water to perform special treatment on the charged battery, has short production period, does not influence subsequent separation due to the volatilization of nitrogen, has good separation effect, and has higher automation degree and higher safety.

Drawings

The invention is further illustrated by means of the attached drawings, but the embodiments in the drawings do not constitute any limitation to the invention, and for a person skilled in the art, other drawings can be obtained on the basis of the following drawings without inventive effort.

Fig. 1 is a front view of a charged crushing fire prevention and extinguishing device for waste lithium ion batteries according to an exemplary embodiment of the present invention;

FIG. 2 is a structural plan view of an apparatus for charged crushing, fire prevention and extinguishing of waste lithium ion batteries according to an exemplary embodiment of the present invention;

FIG. 3 is a schematic view of the internal structure of an infrared flame detector according to an exemplary embodiment of the invention.

Reference numerals:

the device comprises a vibrating conveyor 1, a feeding hole 2, an infrared flame detector 3, a temperature sensor 4, a vibrating motor 5, a liquid nitrogen conveying pipe 6, a liquid nitrogen electromagnetic valve 7, a liquid nitrogen machine 8, a nitrogen making machine 9, an electric control cabinet 10, an infrared flame detector 11, an adjusting screw 12, a universal disc 13, a liquid nitrogen injection pipe 14, a liquid nitrogen spray nozzle 15 and a liquid nitrogen injection pipe fixing block 16.

Detailed Description

The invention is further described with reference to the following examples.

Referring to fig. 1 and fig. 2, the device for charged crushing, fire prevention and fire extinguishment of waste lithium ion batteries provided by the embodiment comprises a vibrating conveyor 1 and a vibrating motor 5, wherein the vibrating conveyor 1 is provided with a feed port 2 and a cavity communicated with the feed port 2, and the vibrating motor 5 is used for driving materials in the cavity to be conveyed forwards. Preferably, the feed inlet 2 is installed at the upper left of the vibrating conveyor 1 to facilitate feeding.

Wherein, because the jigging conveyer 1 is carried for the steel construction, this is different from traditional band conveying and causes the burn of belt broken for the structure of device is more high temperature resistant, more firm.

Wherein, the conveying speed of the crushed materials can be changed by adjusting the parameters of the vibrating motor 5, so as to achieve the purpose of feeding materials at a constant speed according to the subsequent flow.

The device is still including being used for detecting the interior naked light signal of cavity infrared flame detector 3, being used for the monitoring material temperature's in the cavity temperature sensor 4, liquid nitrogen conveyer pipe 6, liquid nitrogen solenoid valve 7, liquid nitrogen machine 8, nitrogen making machine 9 and automatically controlled cabinet 10, be equipped with the liquid nitrogen injection pipe 14 that sets up along its inner surface in the cavity, nitrogen making machine 9, liquid nitrogen machine 8, liquid nitrogen solenoid valve 7 liquid nitrogen injection pipe 14 loops through liquid nitrogen conveyer pipe 6 and connects, be equipped with the liquid nitrogen shower nozzle 15 that a plurality of intervals set up on the liquid nitrogen injection pipe 14, infrared flame detector 3, temperature sensor 4 and liquid nitrogen solenoid valve 7 all with automatically controlled cabinet 10 communication connection.

In a manner that can be realized, the liquid nitrogen injection pipe 14 is welded on the inner surface of the cavity through a liquid nitrogen injection pipe fixing block 16, and the structural stability can be ensured by welding the liquid nitrogen injection pipe 14 inside the cavity of the vibrating conveyor 1 to vibrate along with the cavity.

In an implementation manner, as shown in fig. 3, the infrared flame detector 3 includes an infrared flame detector 11, an adjusting screw 12, and a universal disk 13, and the universal disk 13 is connected to the infrared flame detector 11 through the adjusting screw 12. The detection direction of the infrared flame detector 3 can be changed by adjusting the positions of the adjusting screws 12 and the universal disc 13 in the infrared flame detector 3, and the infrared flame detector has higher flexibility.

In the above embodiment, the crushed waste lithium ion battery materials after coarse crushing are fed into the cavity of the vibrating conveyor 1 from the feeding port 2, the materials in the cavity are conveyed forward at a constant speed under the action of the vibrating motor 5, because the crushed waste lithium ion battery materials can generate heat or even generate open fire in the conveying process, the crushed waste lithium ion battery materials send feedback signals to the electric control cabinet 10 after detecting open fire signals through the infrared flame detector 3 in the conveying process, the switch of the liquid nitrogen electromagnetic valve 7 on one side is triggered immediately after signal feedback, the liquid nitrogen can form liquid nitrogen to be sprayed into the cavity through a pipeline after passing through the nitrogen making machine 9 and the liquid nitrogen machine 8, so that the fire extinguishing effects of isolating air and reducing temperature are achieved.

In addition, if the broken materials of the waste lithium ion batteries only generate heat in the conveying process and open fire does not occur, the feedback can be monitored in real time through the temperature sensor 4 arranged below the cavity, the switch of the liquid nitrogen electromagnetic valve 7 can be triggered if the temperature inside the cavity is detected to be abnormal, the energy density inside the cavity is reduced through the low-temperature action of liquid nitrogen, and therefore the purpose of controlling the broken materials not to burn is achieved. The invention adopts liquid nitrogen to isolate oxygen and perform cooling protection to prevent and extinguish fire for the crushed material of the waste lithium ion battery, does not need water to perform special treatment on the charged battery, has short production period, does not influence subsequent separation due to the volatilization of nitrogen, has good separation effect, and has higher automation degree and higher safety.

The liquid nitrogen produced by the liquid nitrogen machine 8 and the nitrogen producing machine 9 in the above embodiment has the characteristics of low temperature and no support for combustion, is volatile and does not belong to harmful gas, and provides better conditions for environment and subsequent sorting. The electric control cabinet 10 is in communication connection with the infrared flame detector 3, the temperature sensor 4 and the liquid nitrogen electromagnetic valve 7, so that parameters such as flame detection, liquid nitrogen injection and conveying can be set at will, and the safety is guaranteed while the operability is high.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.