Battery breaking anti-explosion pressure relief device

Abstract

The utility model discloses a battery crushing explosion-proof pressure relief device, which relates to the technical field of battery recovery and comprises a crusher, a feeding hopper is fixedly mounted on the upper portion of the crusher, and a sensing component for monitoring pressure data in the feeding hopper in real time is mounted on one side of the feeding hopper. A discharging hopper is fixedly installed on the lower portion of the crusher, and a first rupture disk and a second rupture disk are installed on one side of the feeding hopper and one side of the discharging hopper respectively. According to the battery breaking anti-explosion pressure relief device, two safety defensive lines are arranged in breaking equipment, the first safety defensive line is a combination of a sensing component and an active pressure relief component, after the air pressure of the breaking equipment exceeds a set value, the sensing component monitors that the active pressure relief component is opened for pressure relief, and the second safety defensive line is a rupture disk; according to the safety defense line, the pressure relief effect can be achieved only after the first safety defense line fails, and the production safety can be further improved through the two safety defense lines.

Description

TECHNICAL FIELD

[0001] The utility model relates to a battery recycling technical field, concretely is a battery crushing anti -explosion pressure relief device. BACKGROUND

[0002] In the process of lithium battery recycling and crushing, the residual electric quantity of lithium battery can form a short circuit and cause the lithium battery to heat up, in the crushing process, the positive and negative electrode materials with potential difference can be mixed to cause physical and chemical reactions, and a large amount of flammable and explosive gas containing toxic components is generated. Because the residual electric quantity of lithium battery is not the same and the reaction speed of the mixed positive and negative electrode materials cannot be controlled, the amount of gas generated can increase sharply at once. In the prior art, a pressure relief valve is usually used, but due to the size of the diameter, it is impossible to discharge the dangerous gas which increases sharply at once in time, and control the flammable and explosive components below the critical point. This causes the internal pressure of the equipment to increase sharply, causing the toxic gas and harmful dust to leak out, and even causing the flammable and explosive components to reach the flash point and cause a fire and explosion, which brings great risks to safety production, and even causes equipment damage and personnel casualties. On the other hand, once the toxic gas and dust containing toxic substances leak out, they will seriously pollute the environment and harm the health of the operating personnel. Therefore, the technical personnel in the field propose a battery crushing anti -explosion pressure relief device. SUMMARY

[0003] In view of the deficiencies of the prior art, the utility model provides a battery crushing anti -explosion pressure relief device, which solves the problems raised in the background art.

[0004] To achieve the above purpose, the utility model realizes the following technical scheme: a battery crushing anti -explosion pressure relief device, including a crusher, the upper part of the crusher is fixedly installed with a feeding hopper, one side of the feeding hopper is installed with a sensing part for monitoring the internal pressure data of the feeding hopper in real time, the other side is installed with a driven pressure relief part for releasing the internal gas pressure of the feeding hopper, the lower part of the crusher is fixedly installed with a discharge hopper, one side of the feeding hopper and the discharge hopper is respectively installed with a bursting disc one and a bursting disc two, and one side of the feeding hopper and the discharge hopper is further fixedly connected with a pressure relief main pipe.

[0005] Further, the sensing part is a precision pressure sensor.

[0006] Further, the driven pressure relief part is an electromagnetic safety valve.

[0007] Further, the section of the pressure relief main pipe is connected with a pressure relief branch pipe, the inlet of the pressure relief main pipe corresponds to the bursting disc two, and the inlet of the pressure relief branch pipe corresponds to the bursting disc one.

[0008] Further, the side of the inlet hopper and the outlet hopper is provided with a venting opening, and the installation of the bursting disc one and the bursting disc two can block the venting opening.

[0009] Further, the surface of the bursting disc one and the bursting disc two is provided with a fragile part.

[0010] The utility model provides a battery crushing anti -explosion pressure -relief device, has the following beneficial effects compared with prior art:

[0011] The battery crushing anti -explosion pressure -relief device sets two safety lines in crushing equipment, the first safety line is the combination of sensing part and active pressure -relief part, when the air pressure of crushing equipment exceeds the set value, sensing part detects, and active pressure -relief part opens and carries out pressure relief, the second safety line is bursting disc, this safety line mainly plays the pressure relief effect after the failure of the first safety line, and through two safety lines, can further improve production safety. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is the split schematic view of the utility model;

[0013] Figure 2 It is the schematic view of the first visual angle of the utility model after assembly;

[0014] Figure 3 It is the schematic view of the second visual angle of the utility model after assembly;

[0015] Figure 4 It is the structure schematic view of inlet hopper in the utility model;

[0016] Figure 5 It is the structure schematic view of outlet hopper in the utility model.

[0017] In the drawing: 1, crusher;2, inlet hopper;21, bursting disc one;22, fragile part;3, outlet hopper;31, bursting disc two;4, sensing part;5, active pressure -relief part;6, pressure -relief main pipe;61, pressure -relief branch pipe. DETAILED DESCRIPTION

[0018] The technical scheme in the utility model embodiments will be described clearly and completely below in conjunction with the drawings in the utility model embodiments, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative efforts are within the protection scope of the utility model.

[0019] Please refer to Figures 1-5The utility model provides a technical scheme: a battery crushing anti -explosion pressure relief device, including crusher 1 (the specific structure and principle of crusher 1 are prior art, this place does not detail again), the upper portion fixed mounting of crusher 1 has the feeding hopper 2, the one side of feeding hopper 2 is equipped with the sensing component 4 (sensing component 4 is pressure sensor) for real -time monitoring the internal pressure data of feeding hopper 2, and the other side is equipped with the active pressure relief component 5 (active pressure relief component 5 is electromagnetic safety valve) for releasing the internal gas pressure of feeding hopper 2, sensing component 4 communicates with active pressure relief component 5, namely active pressure relief component 5 is controlled by sensing component 4, the lower portion fixed mounting of crusher 1 has the discharge hopper 3, and the one side of feeding hopper 2, discharge hopper 3 is equipped with burst disc one 21, burst disc two 31 respectively, and the one side of feeding hopper 2, discharge hopper 3 is also fixedly connected with pressure relief main pipe 6, and the section of pressure relief main pipe 6 is connected with pressure relief branch pipe 61 in series, and the inlet of pressure relief main pipe 6 corresponds burst disc two 31, and the inlet of pressure relief branch pipe 61 corresponds burst disc one 21, and the side of feeding hopper 2 and discharge hopper 3 is reserved and set with the explosion vent, and the installation of burst disc one 21, burst disc two 31 can block the explosion vent, and the surface of burst disc one 21, burst disc two 31 is reserved and set with fragile part 22, and fragile part 22 can be understood as the tear -off mouth reserved on the packaging bag, and its main function is as the most easily broken place of entire burst disc, when the internal pressure of feeding hopper 2, crusher 1 and discharge hopper 3 is increasing, and the electromagnetic safety valve of active pressure relief component 5 also fails, burst disc one 21, burst disc two 31 under high pressure, fragile part 22 will play a key role, ensure that the entire equipment runs safely.

[0020] When using, in the process of crushing lithium battery, gas will be produced, so the internal gas pressure of crusher 1, feeding hopper 2 and discharge hopper 3 will gradually increase, in this process, sensing component 4 (precision pressure sensor) will monitor the pressure value in real time, when exceeding the preset value, active pressure relief component 5 (electromagnetic safety valve) will be opened, so that the internal gas is discharged, to achieve the effect of pressure reduction, this is the first safety line, if exceeding the preset value, active pressure relief component 5 (electromagnetic safety valve) is not opened, and the pressure is still increasing, when the pressure produced by the pressure exceeds the pressure that fragile part 22 in burst disc one 21, burst disc two 31 can bear, fragile part 22 will be damaged, so that the gas is discharged from pressure relief main pipe 6, this is the second safety line, two safety lines can ensure the safety of lithium battery in crushing.

Claims

1. A battery crushing explosion-proof pressure relief device comprising a crusher (1), characterized in that, The upper part of the crusher (1) is fixedly provided with an inlet hopper (2), one side of the inlet hopper (2) is provided with a sensing component (4) for monitoring the pressure data inside the inlet hopper (2) in real time, and the other side is provided with an active pressure relief component (5) for releasing the gas pressure inside the inlet hopper (2), the lower part of the crusher (1) is fixedly provided with an outlet hopper (3), one side of the inlet hopper (2) and the outlet hopper (3) is respectively provided with a bursting disc one (21) and a bursting disc two (31), and one side of the inlet hopper (2) and the outlet hopper (3) is further fixedly connected with a pressure relief main pipe (6).

2. The battery crushing explosion relief pressure relief device according to claim 1, characterized in that, The sensing component (4) is a pressure sensor.

3. The battery crushing explosion relief venting device of claim 1, wherein, The active pressure relief component (5) is an electromagnetic safety valve.

4. The battery crushing explosion relief venting device of claim 1, wherein, The pressure relief main pipe (6) is provided with a pressure relief branch pipe (61) in the section, the inlet of the pressure relief main pipe (6) corresponds to the bursting disc two (31), and the inlet of the pressure relief branch pipe (61) corresponds to the bursting disc one (21).

5. The battery crushing explosion relief venting device of claim 1, wherein, The side part of the inlet hopper (2) and the outlet hopper (3) is provided with an explosion vent, and the installation of the bursting disc one (21) and the bursting disc two (31) can block the explosion vent.

6. The battery crushing explosion relief venting device of claim 1, wherein, The surface of the bursting disc one (21) and the bursting disc two (31) is provided with a fragile part (22).

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