Atomization drying system for lithium iron phosphate production

Abstract

The utility model discloses an atomization drying system for lithium iron phosphate production, which comprises a drying tower, a feeding assembly, a hot air assembly and a temperature monitoring assembly, the drying tower is provided with an air inlet end and an air outlet end, the feeding assembly comprises an atomizer, the atomizer is connected to the drying tower, the discharging end of the atomizer is communicated with the interior of the drying tower, and the temperature monitoring assembly is connected with the drying tower. The air outlet end of the hot air assembly communicates with the air inlet end of the drying tower, the temperature monitoring assembly comprises a first sensor and an alarm, the first sensor is connected to the air inlet end of the drying tower and used for detecting the temperature of the air inlet end of the drying tower, and the alarm is connected to the drying tower and electrically connected with the first sensor. According to the utility model, the problem of inconvenience in use caused by the fact that the temperature change in the drying system needs to be controlled by manual inspection to control the start and stop of the atomizer can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery recycling, in particular to an atomization drying system for lithium iron phosphate production. Background Art

[0002] Usually, spray drying technology can be used to dry the materials in lithium iron phosphate production.

[0003] For example, the Chinese invention patent with application number: CN202211031685.7 is named: A spray drying system for producing lithium iron phosphate precursor materials, including a water tank, a precursor slurry pipe, a blower, a heater, a spray drying tower, a dust collector, a heat exchanger and a steam pipe. It also discloses a spray drying method for lithium iron phosphate precursor materials. The precursor slurry enters the spray drying tower through the atomizer of the spray drying tower, and is mixed and dried with the hot air entering from the distributor of the spray drying tower to obtain a precursor dry material; the precursor slurry is preheated to 80-100°C before entering the spray drying tower. The precursor slurry is first heated to 80-100°C before entering the spray drying tower to reduce its viscosity and reduce the blockage of the precursor slurry in the spray drying tower in the pipeline. As the core component of spray drying, the atomizer is the first place where the solution reaches after passing through the injection pump. The strength of the atomizer determines the effect of atomization, and the temperature has a key influence on the control of the atomizer.

[0004] Therefore, there is an urgent need for an atomization drying system for lithium iron phosphate production to solve the problem in the prior art that manual inspection is required to control the temperature changes in the drying system to achieve control of the start and stop of the atomizer, resulting in inconvenience in use. Utility Model Content

[0005] In view of this, it is necessary to provide an atomization drying system for lithium iron phosphate production to solve the technical problem in the prior art that manual inspection is required to control the temperature changes in the drying system to achieve control of the start and stop of the atomizer, resulting in inconvenience in use.

[0006] In order to achieve the above technical purpose, the technical solution of the utility model provides an atomization drying system for lithium iron phosphate production, comprising:

[0007] A drying tower, the drying tower having an air inlet end and an air outlet end;

[0008] A feeding assembly, comprising an atomizer, the atomizer is connected to the drying tower, and a discharge end of the atomizer is in communication with the interior of the drying tower;

[0009] A hot air component, the air outlet of the hot air component is connected to the air inlet of the drying tower; and

[0010] The temperature monitoring component includes a first sensor and an alarm. The first sensor is connected to the air inlet end of the drying tower and is used to detect the temperature of the air inlet end of the drying tower. The alarm is connected to the drying tower and is electrically connected to the first sensor.

[0011] Furthermore, the hot air assembly includes a burner, the burner is spaced apart from the drying tower, and the air outlet of the burner is connected to the air inlet of the drying tower, and the first sensor is connected to the air outlet of the burner.

[0012] Furthermore, the hot air assembly also includes an air blower, and an air outlet end of the air blower is connected to the interior of the burner.

[0013] Furthermore, the hot air component also includes an induced draft fan, which is spaced apart from the drying tower, and an air inlet end of the induced draft fan is connected to an air outlet end of the drying tower.

[0014] Furthermore, the temperature monitoring component also includes a second sensor, which is connected to the air outlet of the drying tower and is used to detect the temperature of the air outlet of the drying tower, and the second sensor is electrically connected to the alarm.

[0015] Furthermore, the alarm is electrically connected to the atomizer.

[0016] Furthermore, both the first sensor and the second sensor are thermocouples.

[0017] Furthermore, the feeding assembly also includes at least one feeding pump, and the discharge end of the feeding pump is connected to the feed end of the atomizer.

[0018] Furthermore, the feeding assembly also includes at least one first feeding pipe and at least one valve body, the first feeding pipe is arranged in a one-to-one correspondence with the feeding pump, and the two ends of the first feeding pipe are respectively connected with the discharge end of the feeding pump and the feed end of the atomizer, and the valve body is arranged on the first feeding pipe, for connecting or disconnecting the discharge end of the feeding pump and the feed end of the atomizer.

[0019] Furthermore, the number of the feeding pumps in the feeding assembly is two, and the two feeding pumps are arranged in parallel. The feeding assembly also includes a second feeding pipe, one end of the second feeding pipe is connected to the feed end of the atomizer, and the two first feeding pipes are connected to the other end of the second feeding pipe.

[0020] Compared with the prior art, the beneficial effects of the utility model include: an atomizer is connected to a drying tower, and the discharge end of the atomizer is communicated with the interior of the dryer, so as to provide atomized material to the interior of the dryer; the outlet end of the hot air component is communicated with the air inlet end of the drying tower, so as to provide hot air to the interior of the dryer; a first sensor is connected to the air inlet end of the drying tower, so as to detect the temperature of the air inlet end of the drying tower; an alarm is electrically connected to the first sensor, so as to feedback an alarm signal; compared with the prior art, a first sensor is arranged at the air inlet end of the drying tower to detect the internal hot air entering the dryer, and the electrical connection between the alarm and the first sensor is utilized to feedback the temperature detection structure, so as to realize the automatic management of the internal temperature of the dryer, facilitate production, reduce manual inspections, and reduce the labor intensity of workers; and can solve the technical problem in the prior art that manual inspections are required to control the temperature changes in the drying system to realize the control of the start and stop of the atomizer, thereby causing inconvenience in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of a dry atomization system for lithium iron phosphate production provided by an embodiment of the utility model;

[0022] Figure 2 It is a schematic diagram of the electrical connection of the first sensor, the second sensor, the atomizer and the alarm provided in the embodiment of the utility model.

[0023] Description of reference numerals:

[0024] Drying tower 1;

[0025] Feeding component 2;

[0026] Atomizer 21;

[0027] Feeding pump 22;

[0028] first feeding pipe 23;

[0029] Valve body 24;

[0030] second feeding pipe 25;

[0031] Hot air component 3;

[0032] Burner 31;

[0033] Blower 32;

[0034] induced draft fan 33;

[0035] A second sensor 34;

[0036] Temperature monitoring component 4;

[0037] A first sensor 41;

[0038] Alarm 42. DETAILED DESCRIPTION

[0039] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the present application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not used to limit the scope of the present invention.

[0040] See also Figure 1 , Figure 2 The utility model provides an atomization drying system for lithium iron phosphate production, including a drying tower 1, a feeding component 2, a hot air component 3 and a temperature monitoring component 4. The drying tower 1 has an air inlet end and an air outlet end. The feeding component 2 includes an atomizer 21, the atomizer 21 is connected to the drying tower 1, and the discharge end of the atomizer 21 is connected to the interior of the drying tower 1, the air outlet end of the hot air component 3 is connected to the air inlet end of the drying tower 1, the temperature monitoring component 4 includes a first sensor 41 and an alarm 42, the first sensor 41 is connected to the air inlet end of the drying tower 1, and is used to detect the temperature of the air inlet end of the drying tower 1, the alarm 42 is connected to the drying tower 1, and is electrically connected to the first sensor 41.

[0041] In the present device, the atomizer 21 is connected to the drying tower 1, and the discharge end of the atomizer 21 is connected to the interior of the dryer, so as to provide atomized material to the interior of the dryer. The outlet end of the hot air component 3 is connected to the air inlet end of the drying tower 1, so as to provide hot air to the interior of the dryer. The first sensor 41 is connected to the air inlet end of the drying tower 1, so as to detect the temperature of the air inlet end of the drying tower 1. The alarm 42 is electrically connected to the first sensor 41, so as to feedback an alarm signal.

[0042] Compared with the prior art, a first sensor 41 is provided at the air inlet end of the drying tower 1 to detect the internal hot air entering the dryer, and the alarm 42 is electrically connected to the first sensor 41 to feedback the temperature detection structure, so as to realize automatic management of the internal temperature of the dryer, facilitate production, reduce manual inspections, and reduce the labor intensity of workers. It can solve the technical problem in the prior art that manual inspections are required to control the temperature changes in the drying system to realize the control of the start and stop of the atomizer 21, thereby causing inconvenience in use.

[0043] Furthermore, the drying tower 1, atomizer 21 and alarm 42 in the present device are all common and easily purchased equipment on the market, and are conventional settings well known to those skilled in the art, and will not be described in detail here.

[0044] like Figure 1 As shown, the feeding assembly 2 further includes at least one feeding pump 22 , at least one first feeding pipe 23 and at least one valve body 24 , and a second feeding pipe 25 .

[0045] The discharge end of the feed pump 22 is connected to the feed end of the atomizer 21 .

[0046] The material solution is delivered to the atomizer 21 by the feed pump 22, thereby ensuring stable production of the device.

[0047] Furthermore, the feed pump 22 here is a material conveying pump that is common and easy to purchase on the market. It is a conventional setting well known to those skilled in the art and will not be described in detail here.

[0048] As an implementation method, Figure 1 As shown, the first feeding pipe 23 is arranged in a one-to-one correspondence with the feeding pump 22, and the two ends of the first feeding pipe 23 are respectively connected with the discharge end of the feeding pump 22 and the feed end of the atomizer 21, and the valve body 24 is arranged on the first feeding pipe 23, which is used to connect or disconnect the discharge end of the feeding pump 22 and the feed end of the atomizer 21.

[0049] Quantitative delivery of materials is achieved through the first feeding pipe 23 and the valve body 24, which facilitates the management and control of automated production.

[0050] Furthermore, the valve body 24 here is a solenoid valve that is common and easy to purchase on the market, which is a conventional setting well known to those skilled in the art and will not be described in detail here.

[0051] As a preferred implementation method, Figure 1 As shown, there are two feeding pumps 22 in the feeding assembly 2, and the two feeding pumps 22 are arranged in parallel. One end of the second feeding pipe 25 is connected to the feeding end of the atomizer 21, and the two first feeding pipes 23 are connected to the other end of the second feeding pipe 25.

[0052] Through the cooperation of two parallel first feeding pipes 23 and feeding pumps 22, quantitative supply of materials can be achieved. At the same time, when replacing or replenishing materials, the valve body 24 can be controlled to achieve uninterrupted transportation of materials, thereby improving the stability of device operation and automated production.

[0053] like Figure 1 As shown, the hot air assembly 3 includes a burner 31 , a blower 32 , an induced draft fan 33 , and a second sensor 34 .

[0054] The burner 31 is spaced apart from the drying tower 1 , and the air outlet of the burner 31 is connected to the air inlet of the drying tower 1 . The first sensor 41 is connected to the air outlet of the burner 31 .

[0055] Specifically, the heat generated by combustion of the burner 31 is supplied to the drying tower 1 in the device, thereby providing a stable heat source for the drying tower 1 .

[0056] Furthermore, the burner 31 here is a common and easily purchased device on the market, which belongs to a conventional setting well known to those skilled in the art and will not be described in detail here.

[0057] As an implementation method, Figure 1 As shown, the air outlet end of the blower 32 is connected to the interior of the burner 31.

[0058] The blower 32 can ensure sufficient combustion in the burner 31 , thereby providing a stable heat source for the drying tower 1 .

[0059] As another implementation method, Figure 1 As shown, the induced draft fan 33 is spaced apart from the drying tower 1 , and the air inlet end of the induced draft fan 33 is connected to the air outlet end of the drying tower 1 .

[0060] The induced draft fan 33 is disposed at the air outlet end of the drying tower 1 to absorb the exhaust gas generated in the drying tower 1 to prevent the drying tower 1 from generating high temperature and affecting the normal operation of the device.

[0061] Furthermore, the air supply fan 32 and the induced draft fan 33 are both common and easily purchased fans on the market, which are conventional settings well known to those skilled in the art and will not be described in detail here.

[0062] As a preferred implementation method, Figure 1 As shown, the second sensor 34 is connected to the air outlet of the drying tower 1 for detecting the temperature of the air outlet of the drying tower 1 , and the second sensor 34 is electrically connected to the alarm 42 .

[0063] The second sensor 34 is disposed at the air outlet of the drying tower 1 and is used to detect the temperature of the air outlet of the drying tower 1 , so as to realize automatic control and management and ensure the stable operation of the atomizer 21 .

[0064] As a preferred implementation, the first sensor 41 and the second sensor 34 are both thermocouples.

[0065] Specifically, when the temperatures at both ends of a thermocouple are different, a thermoelectric potential difference will be generated between the two metals. This difference can be used to calculate the temperature difference by measuring the voltage. The thermocouple is made of two conductors of different components (called thermocouple wire or hot electrode) connected at both ends to form a loop. When the temperatures of the two junctions are different, an electromotive force will be generated in the loop. This phenomenon is called the thermoelectric effect, and this electromotive force is called thermoelectric potential. Thermocouples directly measure temperature and convert temperature signals into thermoelectric potential signals, which are then converted into the temperature of the measured medium through electrical instruments (secondary instruments).

[0066] As another preferred implementation, Figure 2 As shown, the alarm 42 is electrically connected to the atomizer 21 .

[0067] The alarm 42 can also monitor and provide feedback on the working status of the atomizer 21, facilitating automated production and management.

[0068] Furthermore, the system also includes a PLC controller, which is electrically connected to the alarm 42, the first sensor 41, the second sensor 34, and the atomizer 21. The PLC controller here is an automatic control device that is common and easy to purchase on the market. It is a conventional setting known to technical personnel in this field and will not be described in detail here.

[0069] The specific working process of the utility model is that the atomizer 21 is connected to the drying tower 1, and the discharge end of the atomizer 21 is connected to the interior of the dryer, so as to provide atomized material to the interior of the dryer. The interior of the hot air component 3 is connected to the air inlet end of the drying tower 1, so as to provide hot air to the interior of the dryer. The first sensor 41 is connected to the air inlet end of the drying tower 1, so as to detect the temperature of the air inlet end of the drying tower 1. The alarm 42 is electrically connected to the first sensor 41, so as to feedback the alarm signal. Compared with the prior art, the first sensor 41 is arranged at the air inlet end of the drying tower 1 to detect the internal hot air entering the dryer, and the electrical connection between the alarm 42 and the first sensor 41 is used to feedback the temperature detection structure, so as to realize the automatic management of the internal temperature of the dryer, facilitate production, reduce manual inspections, and reduce the labor intensity of workers.

[0070] When in use, it first operates normally. When the first sensor 41 detects that the temperature of the air inlet tower of the drying tower 1 is higher than the preset temperature, that is, 180°C, the atomizer 21 operates normally and atomizes the material. At the same time, when the second sensor 34 detects that the temperature of the air outlet tower of the drying tower 1 is lower than the preset temperature, that is, 100°C, the alarm 42 will not alarm; when the first sensor 41 detects that the temperature of the air inlet tower of the drying tower 1 is lower than the preset temperature, the alarm 42 alarms; or when the atomizer 21 is shut down, the alarm 42 alarms; or when the second sensor 34 detects that the temperature of the air outlet tower of the drying tower 1 is higher than the preset temperature, the alarm 42 alarms.

[0071] Furthermore, the device can realize that when the inlet temperature is higher than 180°C, the oil pump is abnormal or other factors cause the spray drying atomizer 21 to be in a shutdown state, the alarm will sound, thereby avoiding damage to the atomizer 21; at the same time, when the outlet temperature continues to increase abnormally, that is, when it is higher than 100°C, the alarm will sound, thereby avoiding damage to the atomizer 21 caused by the continuous increase in temperature in the drying tower 1.

[0072] The device, through the above structure, can solve the technical problem in the prior art that manual inspection is required to control the temperature change in the drying system to realize the control of the start and stop of the atomizer 21, which leads to inconvenience in use.

[0073] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the present invention should be included in the protection scope of the present invention.

Claims

1. An atomizing drying system for lithium iron phosphate production, characterized in that: include: A drying tower having an air inlet end and an air outlet end; A feeding assembly, comprising an atomizer, the atomizer is connected to the drying tower, and a discharge end of the atomizer is in communication with the interior of the drying tower; A hot air component, the air outlet of the hot air component is connected to the air inlet of the drying tower; as well as The temperature monitoring component includes a first sensor and an alarm. The first sensor is connected to the air inlet end of the drying tower and is used to detect the temperature of the air inlet end of the drying tower. The alarm is connected to the drying tower and is electrically connected to the first sensor.

2. The atomizing drying system for lithium iron phosphate production according to claim 1, characterized in that: The hot air component comprises a burner, the burner is spaced apart from the drying tower, an air outlet of the burner is connected to an air inlet of the drying tower, and the first sensor is connected to the air outlet of the burner.

3. The atomizing drying system for lithium iron phosphate production according to claim 2, characterized in that: The hot air component also includes an air blower, and an air outlet end of the air blower is connected to the interior of the burner.

4. The atomizing drying system for lithium iron phosphate production according to claim 3, characterized in that: The hot air component further comprises an induced draft fan, which is spaced apart from the drying tower, and an air inlet end of the induced draft fan is connected to an air outlet end of the drying tower.

5. The atomizing drying system for lithium iron phosphate production according to claim 4, characterized in that: The temperature monitoring component also includes a second sensor, which is connected to the air outlet of the drying tower and is used to detect the temperature of the air outlet of the drying tower, and the second sensor is electrically connected to the alarm.

6. The atomizing drying system for lithium iron phosphate production according to claim 5, characterized in that: The alarm is electrically connected to the atomizer.

7. The atomizing drying system for lithium iron phosphate production according to claim 5, characterized in that: The first sensor and the second sensor are both thermocouples.

8. The atomizing drying system for lithium iron phosphate production according to claim 5, characterized in that: The feeding assembly further comprises at least one feeding pump, and the discharge end of the feeding pump is connected to the feed end of the atomizer.

9. The atomizing drying system for lithium iron phosphate production according to claim 8, characterized in that: The feeding assembly also includes at least one first feeding pipe and at least one valve body, the first feeding pipe is arranged in a one-to-one correspondence with the feeding pump, and the two ends of the first feeding pipe are respectively connected to the discharge end of the feeding pump and the feed end of the atomizer, and the valve body is arranged on the first feeding pipe, and is used to connect or disconnect the discharge end of the feeding pump and the feed end of the atomizer.

10. The atomizing drying system for lithium iron phosphate production according to claim 9, characterized in that: The number of the feeding pumps in the feeding assembly is two, and the two feeding pumps are arranged in parallel. The feeding assembly also includes a second feeding pipe, one end of which is connected to the feed end of the atomizer, and the two first feeding pipes are connected to the other end of the second feeding pipe.

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