Equipment for discharging waste gas generated during processing of lithium iron phosphate positive electrode material

Abstract

The utility model belongs to the field of waste gas emission equipment, and particularly relates to waste gas emission equipment generated by lithium iron phosphate positive electrode material processing, which comprises a bottom frame and a base, a tank body is fixedly arranged at the top of the base, a spraying tank is fixedly arranged at the top of the bottom frame, and a cooling dehumidifier is fixedly arranged at the top of the bottom frame. An L-shaped guide pipe is fixedly installed at the air inlet end of the cooling dehumidifier, an air collecting hood is arranged at the top of the L-shaped guide pipe, a spraying tank is fixedly installed at the top of the bottom frame, an annular spraying pipe is installed in the spraying tank in an embedded mode, and a water pump is arranged on one side of the spraying tank. The equipment for discharging the waste gas generated by processing the lithium iron phosphate positive electrode material has the beneficial effects of efficient gas collection and purification capability, convenient maintenance and cleaning, comprehensive waste gas treatment flow, good environmental protection benefit, flexible operation and control and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to waste gas emission equipment technical field especially relates to waste gas emission equipment that lithium iron phosphate positive material processing produced. BACKGROUND

[0002] Waste gas is produced in the lithium iron phosphate positive material processing process, mainly including sulfur dioxide, nitrogen oxides, organic matter and dust and other pollutants, these waste gases not only affect the production environment, also can constitute a threat to human health, so need to handle the waste gas produced in the lithium iron phosphate positive material processing process.

[0003] The existing waste gas emission equipment that lithium iron phosphate positive material processing produced still has some deficiencies in the actual use process:

[0004] Sulfur dioxide as one of the main waste gases produced in the lithium iron phosphate positive material processing process, the existing sulfur dioxide treatment mode mainly adopts the wet flue gas desulfurization mode to handle, but the mode finally only achieves the effect of desulfurization, and it is difficult to meet the effect of realizing multiple treatments of sulfur dioxide. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving the shortcomings that the wet flue gas desulfurization mode is handled in the prior art, and finally only achieves the effect of desulfurization, and it is difficult to meet the effect of realizing multiple treatments of sulfur dioxide, and provides the waste gas emission equipment that lithium iron phosphate positive material processing produced.

[0006] In order to achieve the above object, the utility model adopts the following technical scheme:

[0007] Waste gas emission equipment that lithium iron phosphate positive material processing produced, including chassis and base, the top of chassis is fixedly installed with cooling dehumidifier, the gas inlet end of cooling dehumidifier is fixedly installed with L type pipe, the top of L type pipe is equipped with gas collecting hood, the top of chassis is fixedly installed with spray tank, the spray tank is embedded with annular spray pipe, one side of spray tank is equipped with water pump, the liquid inlet end of water pump is connected with industrial water, the liquid outlet end between spray tank and water pump is connected with water pipe, and the water outlet end of water pipe is fixedly connected with the water inlet of spray tank and annular spray pipe, the top of base is fixedly installed with tank body, the tank body is installed with activated carbon in layers.

[0008] In a possible design, the top of the L-shaped conduit is fixedly provided with a treatment bin, and the treatment bin is arranged between the L-shaped conduit and the gas collecting hood; a sliding groove is arranged in the treatment bin; a connecting frame is slidably connected in the sliding groove; the bottom and the top of the connecting frame are provided with sealing rubber rings; the sealing rubber rings increase the sealing of the connecting frame and the sliding groove; a filter screen is fixedly arranged in the connecting frame; and a baffle is fixedly arranged at one end of the connecting frame and realizes sealing on one side of the sliding groove.

[0009] In a possible design, a spray head is fixedly arranged in the spray tank; and a liquid delivery pipe is fixedly arranged in the spray tank and is fixedly connected with the liquid inlet end of the spray head.

[0010] In a possible design, a third air suction fan is fixedly arranged on the outer wall of the L-shaped conduit; a first connecting pipe is fixedly arranged between the tank body and the spray tank and connects the tank body and the spray tank; and the first connecting pipe is provided with a second air suction fan.

[0011] In a possible design, a second connecting pipe is fixedly arranged between the spray tank and the cooling and dehumidifying machine and connects the spray tank and the cooling and dehumidifying machine.

[0012] In a possible design, a first air suction fan is fixedly arranged on the top of the tank body and can be used for discharging air outward.

[0013] In the application, the flange plate on the top of the gas collecting hood is connected with a pipeline used for guiding sulfur dioxide gas in the lithium iron phosphate positive electrode material processing process; the third air suction fan is started; sulfur dioxide is sucked into the L-shaped conduit through the gas collecting hood; the sulfur dioxide in the L-shaped conduit is filtered to remove large dust particles through the filter screen; after long-term use of the filter screen, the baffle can be pulled out, the connecting frame is slid out of the sliding groove, and the filter screen is taken out for cleaning; the sulfur dioxide gas is cooled and dehumidified through the cooling and dehumidifying machine, then enters the spray tank through the second connecting pipe, and the gas is neutralized through spraying of the alkali solution in the spray tank through the spray head; the alkali solution is a sodium hydroxide solution; the sodium hydroxide solution reacts with the sulfur dioxide to generate salt, which is deposited at the bottom of the spray tank; at the same time, the water pump on one side of the spray tank is started; the water pump is connected with industrial water through a connecting pipe; the clean water can be pumped into the annular spray pipe through the connecting pipe; the clean water flows out through the annular spray pipe, flows down along the inner wall of the spray tank, continuously flushes the deposited salt in the spray tank, and is discharged outward through the liquid outlet at the bottom of the spray tank; the second air suction fan is started; the sprayed gas passes through the first connecting pipe into the tank body through the action of the second air suction fan; the gas is further cleaned through layer-by-layer filtration of the activated carbon in the tank body; and the gas is discharged outward through the first air suction fan. Advantageous effects

[0014] The utility model discloses a waste gas emission equipment of lithium iron phosphate positive material processing produces, through soda liquor to sulfur dioxide is spouted, realizes the effect of acid -base neutralization, and to the salt of acid -base neutralization after generation, can be through the clear water and is washed and cleaned, realized the effect of comprehensive treatment, makes sulfur dioxide treatment more efficient,

[0015] In the utility model, the waste gas emission equipment of lithium iron phosphate positive material processing produces, the equipment sulfur dioxide treatment technology, including cooling dehumidification, spraying and the flushing cleaning of product, and through activated carbon filters etc., forms a comprehensive sulfur dioxide waste gas treatment process, and this comprehensive treatment mode can remove more kinds of pollutants in sulfur dioxide more effectively, improves the purification quality of waste gas,

[0016] In the utility model, the waste gas emission equipment of lithium iron phosphate positive material processing produces has the beneficial effects of efficient gas collection and purification capacity, convenient maintenance and cleaning, comprehensive sulfur dioxide treatment process, good environmental protection benefit and flexible operation and control etc. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 The structure schematic diagram of waste gas emission equipment of lithium iron phosphate positive material processing produced by the utility model is provided;

[0018] Figure 2 The cross section structure schematic diagram of the processing bin of waste gas emission equipment of lithium iron phosphate positive material processing produced by the utility model is provided;

[0019] Figure 3 The cross section structure schematic diagram of the spraying tank of waste gas emission equipment of lithium iron phosphate positive material processing produced by the utility model is provided.

[0020] In the drawing: 1, tank body;2, first suction fan;3, first connecting pipe;4, second suction fan;5, second connecting pipe;6, base;7, underframe;8, spraying tank;9, infusion tube;10, cooling dehumidifier;11, L type guide pipe;12, gas collecting cover;13, processing bin;14, third suction fan;15, connecting frame;16, sliding slot;17, filter screen;18, baffle;19, spray head;20, annular spray pipe. DETAILED DESCRIPTION

[0021] The technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model, and apparently, the described embodiments only are a part of the embodiments of the utility model, not all the embodiments. EMBODIMENT

[0022] REFERENCE Figure 1, including the chassis 7 and the base 6, the top of the chassis 7 is fixedly installed with a cooling dehumidifier 10, the air inlet end of the cooling dehumidifier 10 is fixedly installed with an L-shaped pipe 11, the top of the L-shaped pipe 11 is provided with a gas collecting hood 12, the top of the chassis 7 is fixedly installed with a spray tank 8, the spray tank 8 is embeddedly installed with an annular spray pipe 20, one side of the spray tank 8 is provided with a water pump, the liquid inlet end of the water pump is connected with industrial water, the spray tank 8 and the liquid outlet end of the water pump are communicated with a water pipe, and the water outlet end of the water pipe is fixedly connected with the water inlet of the spray tank 8 and the annular spray pipe 20, the top of the base 6 is fixedly installed with a tank body 1, and the tank body 1 is installed with activated carbon in layers. The top of the chassis 7 is stably installed with the cooling dehumidifier 10 for cooling and dehumidifying treatment of sulfur dioxide gas, the air inlet end of the cooling dehumidifier 10 is connected with an L-shaped pipe 11, the top of the L-shaped pipe 11 is provided with a gas collecting hood 12, the flange plate at the top of the gas collecting hood 12 is connected with a pipeline for guiding sulfur dioxide gas in the lithium iron phosphate positive electrode material processing process, the top of the chassis 7 is also fixedly installed with a spray tank 8, the spray tank 8 is embedded with an annular spray pipe 20, industrial water is pumped to the annular spray pipe 20 for spraying through the water pump on one side of the spray tank 8, for flushing the residual salt in the spray tank 8, the top of the base 6 is also fixedly installed with a tank body 1, and the tank body 1 is installed with activated carbon in layers for adsorbing impurities carried in sulfur dioxide.

[0023] With reference to Figure 1 And Figure 2 , the top of the L-shaped pipe 11 is fixedly installed with a treatment bin 13, and the treatment bin 13 is installed between the L-shaped pipe 11 and the gas collecting hood 12, the treatment bin 13 is provided with a sliding groove 16, the sliding groove 16 is slidably connected with a connecting frame 15, the bottom and the top of the connecting frame 15 are provided with sealing rubber rings, the sealing rubber rings increase the sealing of the connecting frame 15 and the sliding groove 16, the connecting frame 15 is fixedly installed with a filter screen 17, one end of the connecting frame 15 is fixedly installed with a baffle 18, and the baffle 18 is sealed on one side of the sliding groove 16. The top of the L-shaped pipe 11 is additionally provided with a treatment bin 13, the treatment bin 13 is located between the L-shaped pipe 11 and the gas collecting hood 12, the treatment bin 13 is designed with a sliding groove 16, the connecting frame 15 slides in the sliding groove 16, the bottom and the top of the connecting frame 15 are provided with sealing rubber rings to ensure the sealing between the connecting frame 15 and the sliding groove 16, the connecting frame 15 is fixedly installed with a filter screen 17 inside, which is used for preliminarily filtering particulate matters in sulfur dioxide, in addition, one end of the connecting frame 15 is also fixedly installed with a baffle 18, which is sealed on one side of the sliding groove 16, further enhancing the sealing of the treatment bin 13.

[0024] With reference to Figure 3The spraying tank 8 is internally fixedly installed with a spraying head 19, and the spraying tank 8 is internally fixedly penetrated with a liquid delivery pipe 9, and the liquid delivery end of the liquid delivery pipe 9 is fixedly connected with the liquid inlet end of the spraying head 19. The spraying head 19 delivers spraying liquid through the liquid delivery pipe 9, and is used for spraying sulfur dioxide in the spraying tank 8.

[0025] With reference to Figure 1 The outer wall of the L-shaped pipe 11 is fixedly installed with a third air suction fan 14, the tank body 1 and the spraying tank 8 are fixedly installed with a first connecting pipe 3, and the tank body 1 and the spraying tank 8 are communicated through the first connecting pipe 3, and the first connecting pipe 3 is installed with a second air suction fan 4. The third air suction fan 14 sucks the waste gas into the L-shaped pipe 11, and the second air suction fan 4 is used on the first connecting pipe 3, so as to accelerate the flow of the sulfur dioxide gas.

[0026] With reference to Figure 1 The spraying tank 8 and the cooling and dehumidifying machine 10 are fixedly installed with a second connecting pipe 5, and the spraying tank 8 and the cooling and dehumidifying machine 10 are communicated through the second connecting pipe 5. The second connecting pipe 5 provides a channel for the flow of the sulfur dioxide between the spraying tank 8 and the cooling and dehumidifying machine 10.

[0027] The application can be used in the field of lithium iron phosphate positive electrode material processing, and can also be used in other fields applicable to the application. Embodiment

[0028] With reference to Figure 1 On the basis of the first embodiment, the waste gas emission device generated by the lithium iron phosphate positive electrode material processing is applied to the field of lithium iron phosphate positive electrode material processing, and the first air suction fan 2 is fixedly installed on the top of the tank body 1, so that the new gas formed after the sulfur dioxide gas is treated can be discharged outward through the first air suction fan 2.

[0029] However, as known by those skilled in the art, the working principles and wiring methods of the first air suction fan 2, the second air suction fan 4, the cooling and dehumidifying machine 10 and the third air suction fan 14 are common, and they all belong to conventional means or common knowledge, which will not be described here, and those skilled in the art can make any selection or change according to the needs or convenience.

[0030] The above is only a preferred specific implementation manner of the application, but the protection scope of the application is not limited to this. Any skilled person in the art can make equivalent replacement or change according to the technical scheme and the application concept of the application within the technical range disclosed by the application, which should be covered in the protection scope of the application.

Claims

1. A device for the exhaust emission of waste gases produced in the processing of lithium iron phosphate cathode materials, characterized in that, Include: The bottom bracket (7) and the base (6), the top of the bottom bracket (7) is fixedly installed with cooling dehumidifier (10), the air inlet end of cooling dehumidifier (10) is fixedly installed with L type pipe (11), the top of L type pipe (11) is equipped with gas collecting cover (12), the top of bottom bracket (7) is fixedly installed with spray tank (8), the spray tank (8) is embedded with annular spray pipe (20), one side of spray tank (8) is equipped with water pump, the liquid inlet end of water pump is connected with industrial water, the water pipe is communicated between spray tank (8) and the liquid outlet end of water pump, and the water outlet end of water pipe is fixedly connected with the water inlet of spray tank (8) and annular spray pipe (20), the top of base (6) is fixedly installed with tank body (1), the tank body (1) is installed with active carbon in layers.

2. The lithium iron phosphate cathode material processing generated waste gas emission device according to claim 1, characterized in that, The top of L type pipe (11) is fixedly installed with processing bin (13), and processing bin (13) is installed between L type pipe (11) and gas collecting cover (12), the processing bin (13) is equipped with sliding groove (16), the sliding groove (16) is slidably connected with connecting frame (15), the bottom and top of connecting frame (15) are equipped with sealing rubber ring, the sealing rubber ring increases the sealing property of connecting frame (15) and sliding groove (16), the connecting frame (15) is fixedly installed with filter screen (17), one end of connecting frame (15) is fixedly installed with baffle (18), and baffle (18) realizes sealing on one side of sliding groove (16).

3. The lithium iron phosphate cathode material processing generated waste gas emission device according to claim 1, characterized in that, The spray tank (8) is fixedly installed with spray head (19), the spray tank (8) is fixedly penetrated with liquid delivery pipe (9), and the liquid outlet end of liquid delivery pipe (9) is fixedly connected with the liquid inlet end of spray head (19).

4. The lithium iron phosphate cathode material processing exhaust emission apparatus according to claim 1, wherein, The outer wall of L type pipe (11) is fixedly installed with third suction fan (14), the first connecting pipe (3) is fixedly installed between tank body (1) and spray tank (8), and tank body (1) and spray tank (8) are communicated through first connecting pipe (3), and the second suction fan (4) is installed on first connecting pipe (3).

5. The lithium iron phosphate cathode material processing exhaust emission apparatus according to claim 1, wherein, The second connecting pipe (5) is fixedly installed between spray tank (8) and cooling dehumidifier (10), and spray tank (8) and cooling dehumidifier (10) are communicated through second connecting pipe (5).

6. The lithium iron phosphate cathode material processing exhaust emission apparatus according to claim 1, wherein, The first suction fan (2) is fixedly installed on the top of tank body (1), and the first suction fan (2) can exhaust air outward.

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