CN112299406B

CN112299406B - Negative electrode material graphitization preparation process

Info

Publication number: CN112299406B
Application number: CN202011328812.0A
Authority: CN
Inventors: 杨金平
Original assignee: YANTAI MEIERSEN GRAPHITE CO Ltd
Current assignee: YANTAI MEIERSEN GRAPHITE Co.,Ltd.
Priority date: 2020-11-24
Filing date: 2020-11-24
Publication date: 2021-09-17
Anticipated expiration: 2040-11-24
Also published as: CN112299406A

Abstract

The invention discloses a negative electrode material graphitization preparation process, which specifically comprises the following steps: s1, dust removal: carrying out dust removal treatment on the raw materials; s2, high-temperature treatment: electrifying the dedusted raw materials for 15-20h, heating to 2600-; s3, cooling: the raw materials are cooled to 500 ℃ and then taken out of the graphitization furnace, wherein the waste gas treatment equipment in the step S2 comprises a desulfurization device and an impurity removal device, and gas is conveyed between the desulfurization device and the impurity removal device through a gas feeding mechanism. This negative pole material graphitization preparation technology, long-time back of using, desulphurization unit corrodes seriously, can change the desulfurization box, need not to change whole desulphurization unit, convenient operation, and the work load is little, and has reduced the holistic fortune dimension cost of exhaust-gas treatment equipment, and economical and practical type is higher.

Description

Negative electrode material graphitization preparation process

Technical Field

The invention relates to the technical field of preparation of negative electrode materials, in particular to a graphitization preparation process of a negative electrode material.

Background

The negative electrode is the end with lower potential in the power supply, in the primary battery, the electrode with oxidation function is written on the left side in the battery reaction, and from the physical point of view, the electrode is the one where electrons flow out from the circuit.

Publication No. CN 204563858U's patent discloses a graphitizing furnace exhaust purification processing system, and this scheme compares with current artifical alkali mode of adding, possesses the advantage that production efficiency is high, the security is good, exhaust treatment is effectual. Meanwhile, the device has the characteristics of simple structure, automatic detection, small occupied space and the like, and has good practical performance.

The patent with publication number CN 208824251U discloses a graphitizing furnace exhaust treatment device, and this scheme can spill the liquid that main shower nozzle and supplementary shower nozzle spout on the revolving fragment to each place of exhaust furnace, promotes the contact reaction of waste gas and liquid in the exhaust furnace and improves the exhaust-gas treatment quality, has solved because of improving the problem that improves the exhaust-gas treatment quality and set up a large amount of shower nozzles, reduces the volume of equipment to reduction in production cost.

The above reference case still has the following drawbacks:

1) in the desulfurization process, because the absorbent has certain corrosivity, the absorbent which is not completely reacted can cause serious corrosion to equipment, the desulfurization equipment needs to be periodically maintained in the using process, the whole equipment needs to be replaced after the absorbent is seriously damaged, the operation and maintenance cost is high, and the economic practicability is poor;

2) in the dust removal process, solid particles are easy to block a filter plate and difficult to clean, so that the filtering effect is reduced, and the waste gas treatment efficiency is influenced;

3) the solid particle impurity of inconvenient filtering in to dust collecting equipment is collected, and workman intensity of labour is big, and the practicality is lower.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a preparation process for graphitizing a negative electrode material, which solves the problems that the desulfurization equipment needs to be periodically maintained in the using process, the whole equipment needs to be replaced after being seriously damaged, the operation and maintenance cost is high, the economic practicality is poor, the dust removal equipment is easy to block and inconvenient to clean, the filtered impurities are inconvenient to collect, and the labor intensity of workers is high.

(II) technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme: a negative electrode material graphitization preparation process specifically comprises the following steps:

s1, dust removal: placing the cathode material raw material in a purification treatment device before graphitization for dust removal treatment;

s2, high-temperature treatment: placing the dedusted raw materials in a graphitization furnace in series connection, wrapping the raw materials by using heat insulation fillers, filling helium into the graphitization furnace, electrifying for 15-20h to gradually heat the raw materials to 2600 and 2800 ℃ in an air-isolated environment, and conveying the generated waste gas to external waste gas treatment equipment for treatment and discharging after cooling in the heating process;

s3, cooling: and (4) cooling the raw material to 500 ℃ by using a cooling device, and taking out the raw material from the graphitization furnace to complete graphitization treatment.

The waste gas treatment equipment in the step S2 comprises a desulfurization device and an impurity removal device, and gas is conveyed between the desulfurization device and the impurity removal device through a gas feeding mechanism.

The utility model discloses a desulfurization device, including first bottom plate, the equal fixedly connected with pneumatic cylinder in both sides of first bottom plate bottom, the output of pneumatic cylinder runs through first bottom plate and extends to the top of first bottom plate, the output fixedly connected with backup pad of pneumatic cylinder, the board is placed through first slide rail sliding connection in the top of backup pad, the equal fixedly connected with support column in both sides at first bottom plate top to the top fixedly connected with desulfurization case lid of support column, bolt fixedly connected with desulfurization box is passed through to the bottom of desulfurization case lid to the left side intercommunication of desulfurization box has the intake pipe, the bottom of desulfurization box contacts with the top of placing the board, the inside of desulfurization case lid is provided with sprays the mechanism.

The impurity removing device comprises a second bottom plate and an impurity removing box fixed to the top of the second bottom plate, a cloth bag filtering mechanism is arranged inside the impurity removing box, a driving mechanism is arranged on the right side of the impurity removing box, and a limiting mechanism is arranged inside the impurity removing box.

Preferably, actuating mechanism is including fixing the protection frame in edulcoration case right side bottom to the top fixed connection of supporting shoe and second bottom plate is passed through on the right side of protection frame bottom, the bottom fixedly connected with motor of protection frame inner wall to the output of motor passes through dwang fixedly connected with rolling disc, the fixed surface of rolling disc is connected with the fixed block.

Preferably, the front of fixed block is rotated and is connected with the connecting rod to the one end that the rolling disc was kept away from to the connecting rod rotates through the pivot and is connected with the actuating lever, the one end that the connecting rod was kept away from to the actuating lever rotates through the pivot and is connected with the driven lever, the one end that the actuating lever was kept away from to the driven lever runs through protection frame and edulcoration case and extends to the inside of edulcoration case.

Preferably, the cloth bag filtering mechanism comprises a fixed hopper fixed at the top of the impurity removing box, the bottom of the fixed hopper penetrates through the impurity removing box and extends to the inside of the impurity removing box, the two sides of the bottom of the fixed hopper are both fixedly connected with filtering cloth bags through bolts, the front and the back of the bottoms of the filtering cloth bags are both fixedly connected with mounting blocks, the front of each mounting block is provided with a clamping groove, and the top of the fixed hopper is fixedly connected with an exhaust pipe.

Preferably, stop gear is including fixing the second slide rail between edulcoration incasement wall both sides, the equal sliding connection in both sides at second slide rail top has the stopper to through connecting axle fixed connection between the relative one side of two stoppers, the driven lever is located the one end and the right side stopper fixed connection of edulcoration incasement portion, first fixed slot and second fixed slot have been seted up to the inside of stopper.

Preferably, the front sliding connection of stopper has the movable rod, the inside that first fixed slot and second fixed slot and extend to the second fixed slot is run through to the one end of movable rod, the movable rod is located the inside top fixedly connected with connecting plate on bar surface of second fixed slot to the back fixedly connected with of connecting plate and the fixture block of draw-in groove looks adaptation.

Preferably, the top of the limiting block is fixedly connected with a baffle, the front of the connecting plate is fixedly connected with a cover plate tightly attached to the top of the limiting block, and the movable rod is fixedly connected with a handle at one end outside the limiting block.

Preferably, the surface of the movable rod inside the first fixing groove is fixedly connected with a stop block, and a spring sleeved on the surface of the movable rod is fixedly connected between the front surface of the stop block and the front surface of the inner wall of the first fixing groove.

Preferably, the air supply mechanism comprises an air outlet pipeline communicated with the top of the desulfurization box cover and an air supply pipeline communicated with the left side of the impurity removal box, and a pipeline fan is fixedly connected between the air outlet pipeline and the air supply pipeline.

Preferably, the mechanism sprays including fixing at the left water pump in desulfurization case lid top and fixing the support between desulfurization case lid inner wall both sides, the water inlet intercommunication of water pump has the inlet tube to the delivery port intercommunication of water pump has the outlet pipe, the one end that the water pump was kept away from to the outlet pipe runs through the desulfurization case lid and extends to the inside of desulfurization case lid, the bottom at the support is fixed to the part that the outlet pipe is located the inside of desulfurization case lid, the fixed surface of outlet pipe is connected with atomizer.

(III) advantageous effects

The invention provides a negative electrode material graphitization preparation process. Compared with the prior art, the method has the following beneficial effects:

(1) this cathode material graphitization preparation technology, the equal fixedly connected with pneumatic cylinder in both sides through first bottom plate bottom, the output of pneumatic cylinder runs through first bottom plate and extends to the top of first bottom plate, the output fixedly connected with backup pad of pneumatic cylinder, the board is placed through first slide rail sliding connection in the top of backup pad, the top fixedly connected with desulfurization case lid of support column, bolt fixedly connected with desulfurization box is passed through to the bottom of desulfurization case lid, the bottom of desulfurization box contacts with the top of placing the board, long-time the back of using, desulphurization unit corrodes seriously, can change the desulfurization box, need not to change whole desulphurization unit, high durability and convenient operation, the work load is little, and the holistic fortune dimension cost of exhaust-gas treatment equipment has been reduced, economical and practical type is higher.

(2) This cathode material graphitization preparation technology, right side through the edulcoration case is provided with actuating mechanism, the bottom fixedly connected with motor of protective frame inner wall, and the output of motor passes through dwang fixedly connected with rolling disc, the fixed surface of rolling disc is connected with the fixed block, the one end that the connecting rod was kept away from to the actuating lever is rotated through the pivot and is connected with the driven lever, the driven lever is located the one end and the right side stopper fixed connection of edulcoration incasement portion, actuating mechanism passes through stop gear and drives and filter the sack and control the shake, can shake off the impurity that adheres to on filtering the sack surface, convenient clearance, be favorable to improving the filter effect, further improve exhaust-gas treatment efficiency, and open the clearance case door and can clear up the accumulational impurity in the edulcoration case, workman.

(3) This negative-electrode material graphitization preparation technology, inside through the edulcoration case is provided with stop gear, the equal sliding connection in both sides at second slide rail top has the stopper, the front sliding connection of stopper has the movable rod, the movable rod is located the inside top fixedly connected with connecting plate on bar surface of second fixed slot, the back fixedly connected with of connecting plate and the fixture block of draw-in groove looks adaptation, the pulling handle makes the fixture block break away from the draw-in groove, then twist the bolt of filtering between sack and the fixed fill, can change filtering sack, moreover, the steam generator is simple in structure, and convenient operation has improved the practicality.

(4) This cathode material graphitization preparation technology, including fixing at the left water pump in desulfurization case lid top and fixing the support between desulfurization case lid inner wall both sides through spraying the mechanism, the water inlet intercommunication of water pump has the inlet tube, and the delivery port intercommunication of water pump has the outlet pipe, the bottom at the support is fixed to the part that the outlet pipe is located the inside of desulfurization case lid, the fixed surface of outlet pipe is connected with atomizer, atomizer sets up two rows around in the desulfurization case lid, make waste gas can fully contact with the absorbent, the desulfurization effect has been improved.

Drawings

FIG. 1 is a process flow diagram of the present invention;

FIG. 2 is a perspective view of an exhaust gas treating apparatus according to the present invention;

FIG. 3 is a sectional view of a desulfurization unit in accordance with the present invention;

FIG. 4 is a sectional view of an impurity removing apparatus according to the present invention;

FIG. 5 is a side cross-sectional view of a spacing mechanism of the present invention;

FIG. 6 is an enlarged view of a portion of the invention at A in FIG. 5;

FIG. 7 is a top view of the drive mechanism of the present invention;

FIG. 8 is a perspective view of a cloth bag filter mechanism of the present invention;

FIG. 9 is a partial bottom view of the spray mechanism of the present invention;

fig. 10 is a perspective view of the present invention taken away from the case.

In the figure, 1 desulfurization device, 11 first bottom plate, 12 hydraulic cylinder, 13 support plate, 14 first slide rail, 15 placing plate, 16 support column, 17 desulfurization box cover, 18 desulfurization box body, 19 spray mechanism, 191 water pump, 192 bracket, 193 water inlet pipe, 194 water outlet pipe, 195 atomizing nozzle, 110 air inlet pipe, 2 impurity removing device, 21 second bottom plate, 22 impurity removing box, 23 cloth bag filtering mechanism, 231 fixed hopper, 232 filtering cloth bag, 233 installation block, 234 clamping groove, 235 exhaust pipe, 24 driving mechanism, 241 protective frame, 242 motor, 243 rotating disk, 244 fixed block, 245 connecting rod, 246 driving rod, 247 driven rod, 25 limiting mechanism, 251 second slide rail, 252 limiting block, 253 first fixed groove, 254 second fixed groove, 255 movable rod, 256 connecting plate, 257, 258 baffle, 259 cover plate, 2510 pull handle, 2511 baffle, 2512 spring, 3 air feeding mechanism, 31 air outlet pipe, 32 air feeding pipe, 2512 air feeding pipe, and the like, 33 pipeline fan.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 10, an embodiment of the present invention provides a technical solution: a negative electrode material graphitization preparation process specifically comprises the following steps:

The waste gas treatment equipment in the step S2 includes a desulfurization device 1 and an impurity removal device 2, and the gas is conveyed between the desulfurization device 1 and the impurity removal device 2 through a gas supply mechanism 3.

Referring to fig. 2, in the embodiment of the present invention, the air supply mechanism 3 includes an air outlet pipe 31 communicated with the top of the desulfurization box cover 17 and an air supply pipe 32 communicated with the left side of the impurity removing box 22, a pipe fan 33 is fixedly connected between the air outlet pipe 31 and the air supply pipe 32, and the pipe fan 33 can increase the speed of conveying the exhaust gas.

Referring to fig. 3 and 10, in the embodiment of the present invention, a desulfurization apparatus 1 includes a first base plate 11, hydraulic cylinders 12 are fixedly connected to both sides of the bottom of the first base plate 11, the hydraulic cylinders 12 form a hydraulic circulation system with an external hydraulic component through a pipeline, and can control the extension and retraction of the hydraulic cylinders 12, an output end of the hydraulic cylinders 12 penetrates through the first base plate 11 and extends to above the first base plate 11, an output end of the hydraulic cylinders 12 is fixedly connected with a support plate 13, a top of the support plate 13 is slidably connected with a placement plate 15 through a first slide rail 14, both sides of the top of the first base plate 11 are fixedly connected with support columns 16, a top of the support columns 16 is fixedly connected with a desulfurization tank cover 17, a bottom of the desulfurization tank cover 17 is fixedly connected with a desulfurization tank 18 through bolts, a bottom of the front surface of the desulfurization tank 18 is communicated with a drain pipe for discharging a dropped absorbent, and the left side of the desulfurization tank 18 is communicated with an intake pipe 110, the bottom of the desulfurization box body 18 is in contact with the top of the placing plate 15, the spraying mechanism 19 is arranged inside the desulfurization box cover 17, and slaked lime milk can be sprayed into the desulfurization box body 18 through the spraying mechanism 19.

Referring to fig. 3 and 9, in the embodiment of the present invention, the spraying mechanism 19 includes a water pump 191 fixed on the left side of the top of the desulfurization tank cover 17 and a bracket 192 fixed between two sides of the inner wall of the desulfurization tank cover 17, the water pump 191 is electrically connected with an external power supply and a control panel through a wire, a water inlet of the water pump 191 is communicated with a water inlet pipe 193, a water outlet of the water pump 191 is communicated with a water outlet pipe 194, one end of the water outlet pipe 194 far from the water pump 191 penetrates through the desulfurization tank cover 17 and extends to the inside of the desulfurization tank cover 17, a part of the water outlet pipe 194 located inside the desulfurization tank cover 17 is fixed at the bottom of the bracket 192, and the surface of the water outlet pipe 194 is fixedly connected with an atomizing nozzle 195.

Referring to fig. 4, in the embodiment of the present invention, the impurity removing device 2 includes a second bottom plate 21 and an impurity removing box 22 fixed on the top of the second bottom plate 21, a cloth bag filtering mechanism 23 is disposed inside the impurity removing box 22, a driving mechanism 24 is disposed on the right side of the impurity removing box 22, a limiting mechanism 25 is disposed inside the impurity removing box 22, the limiting mechanism 25 can fix and limit the bottom of the filtering cloth bag 232, and when the driving mechanism 24 works, the limiting mechanism 25 can drive the bottom of the filtering cloth bag 232 to shake left and right, so that impurities attached to the surface of the filtering cloth bag 232 can be shaken off.

Referring to fig. 7, in the embodiment of the present invention, the driving mechanism 24 includes a protection frame 241 fixed at the bottom of the right side of the impurity removing box 22, a box door is hinged at the front of the impurity removing box 22 through a hinge to facilitate replacement of the filter cloth bag 232, a control panel is disposed at the front of the box door, a cleaning box door is disposed at the bottom of the box door to clean impurities accumulated in the impurity removing box 22, the right side of the bottom of the protection frame 241 is fixedly connected to the top of the second bottom plate 21 through a support block, a motor 242 is fixedly connected to the bottom of the inner wall of the protection frame 241, the motor 242 is a servo motor of JSF60-15-30-CF-1000 type and is electrically connected to an external power supply and the control panel through a wire, an output end of the motor 242 is fixedly connected to a rotating disc 243 through a rotating rod, a fixing block 244 is fixedly connected to the surface of the rotating disc 243, a connecting rod 245 is rotatably connected to the front of the fixing block 244, and one end of the connecting rod 245 far away from the rotating disc 243 is rotatably connected with a driving rod 246 through a rotating shaft, one end of the driving rod 246 far away from the connecting rod 245 is rotatably connected with a driven rod 247 through a rotating shaft, and one end of the driven rod 247 far away from the driving rod 246 penetrates through the protective frame 241 and the impurity removing box 22 and extends to the inside of the impurity removing box 22.

Referring to fig. 4, 6 and 8, in the embodiment of the present invention, the cloth bag filtering mechanism 23 includes a fixing bucket 231 fixed on the top of the impurity removing box 22, the bottom of the fixing bucket 231 penetrates through the impurity removing box 22 and extends into the impurity removing box 22, two sides of the bottom of the fixing bucket 231 are fixedly connected with a filtering cloth bag 232 through bolts, the front and the back of the bottom of the filtering cloth bag 232 are fixedly connected with mounting blocks 233, the front of the mounting blocks 233 are provided with clamping grooves 234, and the top of the fixing bucket 231 is fixedly connected with an exhaust pipe 235.

Referring to fig. 5 and 6, in the embodiment of the present invention, the limiting mechanism 25 includes a second sliding rail 251 fixed between two sides of the inner wall of the impurity removing box 22, two sides of the top of the second sliding rail 251 are slidably connected with limiting blocks 252, and one side of the two limiting blocks 252 opposite to each other is fixedly connected with each other through a connecting shaft, one end of the driven rod 247 located inside the impurity removing box 22 is fixedly connected with the right limiting block 252, a first fixing groove 253 and a second fixing groove 254 are formed inside the limiting block 252, a movable rod 255 is slidably connected to the front of the limiting block 252, one end of the movable rod 255 penetrates through the first fixing groove 253 and the second fixing groove 254 and extends into the second fixing groove 254, a connecting plate 256 is fixedly connected to the top of the movable rod 255 located on the bar surface inside the second fixing groove 254, a clamping block 257 matched with the clamping groove 234 is fixedly connected to the back of the connecting plate 256, and a baffle 258 is fixedly connected to the top of the limiting block 252, a cover plate 259 closely attached to the top of the limit block 252 is fixedly connected to the front surface of the connecting plate 256, a handle 2510 is fixedly connected to one end of the movable rod 255 outside the limit block 252, a stop 2511 is fixedly connected to the surface of the movable rod 255 inside the first fixing groove 253, and a spring 2512 sleeved on the surface of the movable rod 255 is fixedly connected between the front surface of the stop 2511 and the front surface of the inner wall of the first fixing groove 253.

When in use, the exhaust port of the graphitization furnace is communicated with the air inlet of the external gas cooling equipment through a pipeline, the air inlet of the air inlet pipe 110 is communicated with the exhaust port of the gas cooling equipment through a pipeline, the cooled waste gas enters the desulfurization box body 18, the water pump 191 pumps the external absorbent, so that the absorbent reaches the atomizing nozzle 195 through the water inlet pipe 193 and the water outlet pipe 194, the absorbent atomized into fine liquid drops is mixed and contacted with the waste gas, the SO3 is generated by chemical reaction with SO2 in the waste gas, the SO2 in the flue gas is removed, meanwhile, moisture carried by the absorbent is rapidly evaporated and dried, the temperature of the flue gas is reduced, the desulfurization reaction product and the unused absorbent are carried out of the desulfurization device 1 along with the waste gas in a dry particulate form, and part of the unreacted absorbent and the impurities after reaction directly fall into the desulfurization box body 18 and are discharged through a drain pipe.

The desulfurized waste gas passes through the gas outlet pipe 31 and the gas supply pipe 32 and enters the impurity removing box 22 under the action of the pipeline fan 33, the waste gas enters the fixed hopper 231 after being filtered by the filtering cloth bag 232 and is discharged out of the impurity removing box 22 through the exhaust pipe 235, impurities such as solid particles are intercepted by the filtering cloth bag 232 and fall on the bottom of the impurity removing box 22, after the cloth bag filtering mechanism 23 works for a period of time, the filtering cloth bag 232 needs to be cleaned, the motor 242 works through an external control switch, the rotating disc 243 is driven to rotate through a rotating rod, the connecting rod 245 is driven to move through the fixed block 244, the driving rod 246 is further driven to move, the driven rod 247 is further driven to move left and right, the limiting mechanism 25 is driven to move left and right, the bottom of the filtering cloth bag 232 is shaken back and forth, the impurities attached to the surface of the filtering cloth bag 232 are shaken on the bottom of the impurity removing box 22, a cleaning box door is opened, the impurities accumulated in the impurity removing box 22 can be cleaned.

When the filtering cloth bag 232 needs to be replaced, a door on the front side of the impurity removing box 22 is opened, the handle 2510 is pulled to drive the movable rod 255 to move towards the outside of the limiting block 252, the connecting plate 256 drives the clamping block 257 to move, the clamping block 257 is separated from the clamping groove 234, the blocking block 2511 moves in the process, the spring 2512 is compressed, then the bottom of the filtering cloth bag 232 is lifted upwards to enable the mounting block 233 to be away from the baffle 258, then the handle 2510 is loosened, the bolt between the filtering cloth bag 232 and the fixed bucket 231 is screwed off, the filtering cloth bag 232 can be taken out and a new filtering cloth bag 232 is replaced, after the filtering cloth bag 232 is replaced, the handle 2510 is pulled again to enable the mounting block 233 to be clamped between the baffle 258 and the clamping block 257, then the handle 2510 is loosened to enable the clamping block 257 to be clamped into the clamping groove 234 again under the action of the resilience force of the spring, the bottom of the filtering cloth bag 232 is fixed, so that the driving mechanism 24 drives the filtering cloth bag 232 to shake through the limiting mechanism 25, and (5) performing ash removal.

After long-time use, desulfurization box 18 is corroded seriously, need to be changed, screw down the bolt between desulfurization box lid 17 and the desulfurization box 18 earlier, then make pneumatic cylinder 12 shrink through external control switch, drive backup pad 13 and place board 15 downstream, and then make desulfurization box 18 along with placing board 15 downstream, keep away from desulfurization box lid 17, drag forward again and place board 15, it drives desulfurization box 18 forward motion to make to place board 15, can take off desulfurization box 18, and place new desulfurization box 18, the above-mentioned step of reverse operation, fix desulfurization box 18 with desulfurization box lid 17 again and accomplished the change to desulfurization box 18 promptly.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A negative electrode material graphitization preparation process is characterized by comprising the following steps: the method specifically comprises the following steps:

s3, cooling: cooling the raw material to 500 ℃ by using cooling equipment, and taking out the raw material from the graphitization furnace to complete graphitization treatment;

the waste gas treatment equipment in the step S2 comprises a desulfurization device (1) and an impurity removal device (2), wherein gas is conveyed between the desulfurization device (1) and the impurity removal device (2) through a gas feeding mechanism (3);

the desulfurization device (1) comprises a first bottom plate (11), hydraulic cylinders (12) are fixedly connected to the two sides of the bottom of the first bottom plate (11), the output ends of the hydraulic cylinders (12) penetrate through the first bottom plate (11) and extend to the upper side of the first bottom plate (11), a support plate (13) is fixedly connected to the output ends of the hydraulic cylinders (12), a placing plate (15) is slidably connected to the top of the support plate (13) through a first slide rail (14), support columns (16) are fixedly connected to the two sides of the top of the first bottom plate (11), a desulfurization box cover (17) is fixedly connected to the top of each support column (16), a desulfurization box body (18) is fixedly connected to the bottom of the desulfurization box cover (17) through bolts, an air inlet pipe (110) is communicated with the left side of the desulfurization box body (18), and the bottom of the desulfurization box body (18) is in contact with the top of the placing plate (15), a spraying mechanism (19) is arranged inside the desulfurization box cover (17);

the impurity removing device (2) comprises a second bottom plate (21) and an impurity removing box (22) fixed at the top of the second bottom plate (21), a cloth bag filtering mechanism (23) is arranged inside the impurity removing box (22), a driving mechanism (24) is arranged on the right side of the impurity removing box (22), and a limiting mechanism (25) is arranged inside the impurity removing box (22);

the limiting mechanism (25) comprises a second sliding rail (251) fixed between two sides of the inner wall of the impurity removing box (22), two sides of the top of the second sliding rail (251) are both connected with limiting blocks (252) in a sliding mode, one opposite sides of the two limiting blocks (252) are fixedly connected through a connecting shaft, a first fixing groove (253) and a second fixing groove (254) are formed in the limiting blocks (252), a movable rod (255) is connected to the front face of each limiting block (252) in a sliding mode, one end of each movable rod (255) penetrates through the first fixing groove (253) and the second fixing groove (254) and extends to the inside of the second fixing groove (254), a connecting plate (256) is fixedly connected to the top of the inner surface of the second fixing groove (254) of each movable rod (255), and a clamping block (257) matched with the clamping groove (234) is fixedly connected to the back face of the connecting plate (256), the top fixedly connected with baffle (258) of stopper (252), the positive fixedly connected with of connecting plate (256) is with apron (259) that the top of stopper (252) was hugged closely, movable rod (255) are located stopper (252) outside one end fixedly connected with handle (2510), movable rod (255) are located inside fixed surface of first fixed slot (253) and are connected with dog (2511), fixedly connected with cover is established at spring (2512) on movable rod (255) surface between the front of dog (2511) and the front of first fixed slot (253) inner wall.

2. The graphitization preparation process for the negative electrode material as claimed in claim 1, wherein the preparation process comprises the following steps: the driving mechanism (24) comprises a protection frame (241) fixed to the bottom of the right side of the impurity removing box (22), the right side of the bottom of the protection frame (241) is fixedly connected with the top of the second bottom plate (21) through a supporting block, a motor (242) is fixedly connected to the bottom of the inner wall of the protection frame (241), the output end of the motor (242) is fixedly connected with a rotating disc (243) through a rotating rod, and a fixed block (244) is fixedly connected to the surface of the rotating disc (243).

3. The graphitization preparation process for the negative electrode material as claimed in claim 2, wherein the preparation process comprises the following steps: the front of fixed block (244) is rotated and is connected with connecting rod (245) to the one end that carousel (243) was kept away from in connecting rod (245) is rotated through the pivot and is connected with actuating lever (246), the one end that connecting rod (245) were kept away from in actuating lever (246) is rotated through the pivot and is connected with driven lever (247), the one end that actuating lever (246) were kept away from in driven lever (247) runs through protection frame (241) and edulcoration case (22) and extends to the inside of edulcoration case (22), driven lever (247) are located the inside one end and right side stopper (252) fixed connection of edulcoration case (22).

4. The graphitization preparation process for the negative electrode material as claimed in claim 1, wherein the preparation process comprises the following steps: cloth bag filter mechanism (23) are including fixing fixed fill (231) at edulcoration case (22) top, the bottom of fixed fill (231) is run through edulcoration case (22) and is extended to the inside of edulcoration case (22), both sides of fixed fill (231) bottom all filter sack (232) through bolt fixedly connected with to equal fixedly connected with installation piece (233) around filter sack (232) bottom, draw-in groove (234) have been seted up in the front of installation piece (233), the top fixedly connected with blast pipe (235) of fixed fill (231).

5. The graphitization preparation process for the negative electrode material as claimed in claim 1, wherein the preparation process comprises the following steps: the gas supply mechanism (3) comprises a gas outlet pipeline (31) communicated with the top of the desulfurization box cover (17) and a gas supply pipeline (32) communicated with the left side of the impurity removal box (22), and a pipeline fan (33) is fixedly connected between the gas outlet pipeline (31) and the gas supply pipeline (32).

6. The graphitization preparation process for the negative electrode material as claimed in claim 1, wherein the preparation process comprises the following steps: spray mechanism (19) including fixing at left water pump (191) in desulfurization case lid (17) top and fixing support (192) between desulfurization case lid (17) inner wall both sides, the water inlet intercommunication of water pump (191) has inlet tube (193) to the delivery port intercommunication of water pump (191) has outlet pipe (194), the one end that water pump (191) were kept away from in outlet pipe (194) runs through desulfurization case lid (17) and extends to the inside of desulfurization case lid (17), the bottom at support (192) is fixed to the part that outlet pipe (194) are located desulfurization case lid (17) inside, the fixed surface of outlet pipe (194) is connected with atomizer (195).