Negative electrode material continuous shaping production line

Abstract

The present application relates to a negative electrode material continuous shaping production line, which comprises a raw material bin, a metering bin, a two-way auger, two transition bins, two three-way switching valves, an online detection device, a semi-finished product bin, a secondary classifier and an offline dust remover. The continuous shaping production line of the present application is provided with the online detection device, and in the continuous production process, the material particles can be taken and detected by the material taking device at the upper end of the three-way switching valve, so that whether the material meets the production requirements can be found in time. In the case that the product particle size does not meet the requirements, the switching switch of the three-way switching valve is controlled, and the material with the particle size not meeting the requirements is sent back to the shaping machine through the return pipe to be reshaped again.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of negative electrode material shaping, in particular to a negative electrode material continuous shaping production line. BACKGROUND

[0002] In the existing negative electrode shaping production line, due to the influence of various factors on the equipment during processing, problems such as unstable product particle size and poor shaping effect may occur. If defective products occur during long-term production, due to the detection time interval, the products produced during a certain period of time will become defective products, resulting in a decrease in production rate and economic benefits. In the existing shaping process line, many bins are not equipped with dust collectors, and the material dusting during material conveying may cause secondary pollution. In addition, in the existing shaping process line, during the continuous shaping process, the processing capacity of the front and rear equipment may not match, causing production blockage and unstable products. SUMMARY

[0003] The purpose of the present application is to overcome the shortcomings of the prior art and provide a negative electrode material continuous shaping production line.

[0004] To achieve the above purpose, the present application adopts the following technical scheme:

[0005] The negative electrode material continuous shaping production line comprises a raw material bin, a metering bin, a bidirectional auger, two transition bins, two three-way switching valves, an online detection device, a semi-finished product bin, a secondary classifier and an offline dust collector.

[0006] The upper part of the side wall of the raw material bin is provided with a raw material air feeding inlet, and the outlet at the bottom of the raw material bin is connected to the inlet at the top of the metering bin through a raw material unloading valve.

[0007] The lower part of the metering bin is provided with two shaping machines, the outlet at the bottom of the metering bin is connected to the middle inlet at the top of the bidirectional auger through a metering unloading valve, the outlets at the bottom of the two sides of the bidirectional auger are respectively connected to the inlets of the corresponding shaping machines through pipelines, and the outlets of the two shaping machines are respectively connected to the inlets at the lower part of the side walls of the corresponding transition bins through air feeding discharge pipes.

[0008] The bottoms of the two transition bins are connected with the feed valve ports of the corresponding three-way switch valves through transition discharge valves, the return material valve ports of the three-way switch valves are connected to the feed ports of the corresponding shaping machines through the air feeding return pipes, the discharge valve ports of the three-way switch valves are connected to the inlets at the top of the semi-finished product bins through pipes, the on-line detection equipment is arranged beside the three-way switch valves, the upper ends of the three-way switch valves are provided with material taking devices, the bottoms of the semi-finished product bins are connected with semi-finished product discharge valves, the outlets of the semi-finished product discharge valves are connected to the inlets in the side walls of the secondary classifiers through pipes, the bottoms of the secondary classifiers are connected with finished product discharge valves, the tops of the secondary classifiers are connected to the inlets of the off-line dust collectors through pipes, and the side walls of the off-line dust collectors are connected with rear end induced draft fans.

[0009] Further, the top of the raw material bin is connected with a raw material bin dust collector.

[0010] Further, the top of the transition bin is connected with a transition bin dust collector

[0011] Further, the shaping machine is a three-roller shaping machine.

[0012] Further, the metering bin is provided with a raw material weighing module.

[0013] Further, the semi-finished product bin is provided with a semi-finished product weighing module.

[0014] Further, the air feeding discharge pipe is provided with a supplementary air valve port.

[0015] The above technical scheme has the beneficial effects that.

[0016] 1. The continuous shaping production line is provided with on-line detection equipment, in the continuous production process, the material particles can be taken and detected by the material taking device at the upper end of the three-way switch valve, and whether the material meets the production requirements can be found in time. In the case that the product particle size does not meet the requirements, the switching switch of the three-way switch valve is controlled, and the material with particle size not meeting the requirements is sent back to the shaping machine through the return pipe to be shaped again.

[0017] 2. In the continuous shaping production line, weighing modules are arranged at the positions of the raw material metering bin and the semi-finished product bin, the weighing modules are connected with an intelligent electric control system, the feeding amount and the output of the shaping machine can be intelligently controlled, the front end and the rear end equipment can be accurately matched in the continuous production process, and smooth production and stable products can be achieved.

[0018] 2. In the continuous shaping production line, dust collectors are arranged at positions where material conveying, discharging and other operations are easy to cause dust, and the problem of secondary pollution can be solved. BRIEF DESCRIPTION OF DRAWINGS

[0019] The application will be further described in detail below in combination with the drawings and specific embodiments:

[0020] Fig. 1 This is a front view of the present invention;

[0021] Fig. 2 This is a side view of the present invention. Implementation

[0022] like Figs. 1-2 As shown, the continuous shaping production line for negative electrode materials of the present invention includes a raw material silo 1, a metering silo 2, a bidirectional auger 3, two transition silos 4, two three-way switching valves 5, an online testing device 6, a semi-finished product silo 7, a secondary classifier 8, and an offline dust collector 9.

[0023] A raw material silo dust collector 10 is connected to the top of the raw material silo 1 to prevent dust from being generated during material transportation and causing secondary pollution. A raw material air inlet 11 is provided on the upper part of the side wall of the raw material silo 1. The outlet at the bottom of the raw material silo 1 is connected to the inlet at the top of the metering silo 2 through a raw material unloading valve. Two shaping machines 12 (three-roll shaping machines) are symmetrically arranged below the metering silo 2. The outlet at the bottom of the metering silo 2 is connected to the middle inlet at the top of the bidirectional auger 3 through a metering unloading valve. The outlets on both sides of the bottom of the bidirectional auger 3 are respectively connected to the inlets of the corresponding shaping machines 12 through pipes. The discharge ports of the two shaping machines 12 are respectively connected to the inlets at the lower part of the side wall of the corresponding transition silo 4 through air delivery discharge pipes 16. A transition silo dust collector 13 is connected to the top of the transition silo 4 to prevent dust from being generated during material transportation and causing secondary pollution. Front-end exhaust fans 14 are respectively connected to the upper part of the side walls of the two transition silos 4 to provide the required air volume for the front-end equipment and exhaust clean air.

[0024] The bottoms of the two transition chambers 4 are connected to the inlet ports of the corresponding three-way switching valves 5 via transition discharge valves. The return valve port of the three-way switching valves 5 is connected to the inlet port of the corresponding shaping machine 12 via an air-pumped return pipe 17. The outlet port of the three-way switching valves 5 is connected to the inlet at the top of the semi-finished product chamber 7 via a pipe. The online detection device 6 is located next to the three-way switching valves 5, and a feeder is provided at the top of the three-way switching valves 5. The bottom of the semi-finished product chamber 7 is connected to a semi-finished product discharge valve. The outlet of the semi-finished product discharge valve is connected to the inlet of the side wall of the secondary classifier 8 via a pipe. The bottom of the secondary classifier 8 is connected to a finished product discharge valve. The top of the secondary classifier 8 is connected to the inlet of the offline dust collector 9 via a pipe. The side wall of the offline dust collector 9 is connected to a rear-end induced draft fan 15, which provides the required air volume for the equipment and exhausts clean air.

[0025] The process flow of this invention:

[0026] 1) The raw materials are fed into the raw material silo 1 from the raw material air inlet 11 via a negative pressure air conveying system. The metering silo 2 is equipped with a raw material weighing module, which can accurately control the amount of raw materials entering the shaping machine 12 through an intelligent control system;

[0027] 2) raw materials enter the two-way hinge dragon through the raw material metering bin 2. Through the special design of the two-way hinge dragon blade, the raw materials are simultaneously transported to the two symmetrical shaping machines 12;

[0028] 3) After the raw materials pass through the shaping machine 12, the particle size, particle type and other shaping requirements are met. The shaped materials are sent to the transition bin 4 through the air sending discharge pipe 16. The air sending discharge pipe 16 is provided with a supplementary air valve port;

[0029] 4) The material particles are taken from the upper end of the three-way switch valve 5 for material detection. The material particle size and other indicators of the three-way switch valve 5 are detected online. If the material is qualified, the material enters the semi-finished product bin 7 through the discharge valve port of the three-way switch valve 5. The semi-finished product bin 7 is provided with a semi-finished product weighing module, which can calculate the hourly output of the shaping machine 12 of the process line. If the material is unqualified, the material enters the air sending return pipe 17 and returns to the shaping machine 12 for secondary shaping.

[0030] 5) The material in the semi-finished product bin 7 is sent to the secondary classifier 8 through the pipeline for classification of the material particles. The finished product is collected from the discharge valve under the secondary classifier 8;

[0031] 6) The offline dust collector 9 is used at the rear end of the secondary classifier 8. The offline dust removal and ash removal method can effectively reduce the occurrence of secondary dust raising, so that the ash removal stage is more thorough. The offline dust collector 9 is connected to the discharge auger and the discharge valve at the bottom.

[0032] The above describes a specific embodiment of the present application, but those skilled in the art should understand that this is only an example, and those skilled in the art can make various changes or modifications to this embodiment without departing from the principles and essence of the present application. However, these changes and modifications fall within the scope of the present application.

Claims

1. A continuous forming production line for negative electrode materials, characterized in that: It includes a raw material silo, a metering silo, a bidirectional auger, two transition silos, two three-way switching valves, online testing equipment, a semi-finished product silo, a secondary classifier, and an offline dust collector; The upper side wall of the raw material silo is provided with a raw material gas inlet, and the outlet at the bottom of the raw material silo is connected to the inlet at the top of the metering silo through a raw material unloading valve. Below the metering chamber are two shaping machines. The outlet at the bottom of the metering chamber is connected to the middle inlet at the top of the bidirectional auger through a metering discharge valve. The outlets on both sides of the bottom of the bidirectional auger are connected to the inlets of the corresponding shaping machines through pipes. The discharge ports of the two shaping machines are connected to the inlets at the bottom of the side walls of the corresponding transition chambers through pneumatic discharge pipes. The upper part of the side walls of the two transition chambers is connected to a front-end induced draft fan. The bottoms of the two transition chambers are connected to the inlet ports of the corresponding three-way switching valves via transition discharge valves. The return valve port of the three-way switching valve is connected to the inlet port of the corresponding shaping machine via an air-pumped return pipe. The outlet valve port of the three-way switching valve is connected to the inlet at the top of the semi-finished product chamber via a pipe. The online detection device is located next to the three-way switching valve. A feeder is provided at the upper end of the three-way switching valve. The bottom of the semi-finished product chamber is connected to a semi-finished product discharge valve. The outlet of the semi-finished product discharge valve is connected to the inlet of the side wall of the secondary classifier via a pipe. The bottom of the secondary classifier is connected to a finished product discharge valve. The top of the secondary classifier is connected to the inlet of the offline dust collector via a pipe. The side wall of the offline dust collector is connected to a rear-end induced draft fan.

2. The continuous forming production line for negative electrode materials according to claim 1, characterized in that: The top of the raw material silo is connected to a raw material silo dust collector.

3. The continuous forming production line for negative electrode materials according to claim 1, characterized in that: The top of the transition chamber is connected to a transition chamber dust collector.

4. The continuous forming production line for negative electrode materials according to claim 1, characterized in that: The shaping machine is a three-roller shaping machine.

5. The continuous forming production line for negative electrode materials according to claim 1, characterized in that: The metering chamber is equipped with a raw material weighing module.

6. The continuous forming production line for negative electrode materials according to claim 1, characterized in that: The semi-finished product warehouse is equipped with a semi-finished product weighing module.

7. The continuous forming production line for negative electrode materials according to claim 1, characterized in that: The pneumatic conveying pipe is equipped with a make-up air valve.

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