Protection and dust collection device of filter press for washing ternary precursor

Abstract

The utility model relates to the technical field of protection devices, in particular to a protection and dust collection device of a filter press for washing a ternary precursor, which comprises a protection component, a collection component and an observation desk component, the protection assembly is provided with at least one air inlet so as to reduce the temperature of the inner side of the protection assembly. The collection assembly is installed on the outer side of the protection assembly and connected with an inner cavity of the protection assembly, and the collection assembly is used for recycling pollutants discharged by the protection assembly for repeated utilization; the observation table assembly is arranged in the protection assembly and located beside the filter press, the observation table assembly comprises a supporting part and an observation platform arranged on the supporting part, and a guardrail is arranged on the side, close to the filter press, of the observation platform. The device can prevent pollutants from influencing the product quality and the health of operators.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of protective device, concretely relates to a filter press protection and dust collection device for three-element precursor washing. BACKGROUND

[0002] Three-element precursor, namely nickel cobalt manganese hydroxide, is an important upstream material for producing three-element positive electrode material, and is mixed with a lithium source (such as lithium carbonate for NCM333) to be sintered to obtain a three-element positive electrode finished product.

[0003] At present, the filtering and washing process is the main step for removing impurities from the three-element precursor, and is generally completed by using a plate-frame type diaphragm filter press, and the washing process has the following problems:

[0004] 1. Since the three-element precursor is diversified for different users, different products of different brands may exist in the same workshop, and cross-contamination may occur.

[0005] 2. Dust and magnetic foreign matter in the environment may affect the product quality.

[0006] 3. A small amount of ammonia gas may escape during the washing process of the filter press, and high-temperature dust gas may be generated during unloading, which may easily affect the physical and mental health of the operators.

[0007] 4. The filter press needs to be manually observed every time to check whether the material is completely removed from the filter cloth, whether the filter cloth is intact, and the like, but the distance between the filter plate of the filter press and the unloading hopper is too large, and there is a safety hazard when the personnel observe closely.

[0008] 5. High-temperature pure water is generally used for washing the filter press, so that the ambient temperature near the filter press is high, which is not conducive to long-term operation of the personnel.

[0009] Therefore, how to solve the above problems of the prior art has become a research topic of the utility model. UTILITY MODEL CONTENT

[0010] The utility model aims to provide a filter press protection and dust collection device for three-element precursor washing.

[0011] To achieve the above-mentioned purpose, the utility model adopts the technical scheme of:

[0012] The application discloses a filter press protection and dust collection device for ternary precursor washing, which comprises a protection assembly, a collection assembly and an observation platform assembly, wherein the protection assembly is used for covering at least part of the filter press to limit the spreading range of pollutants, at least one air inlet is arranged on the protection assembly to reduce the temperature inside the protection assembly; the collection assembly is installed outside the protection assembly and connected with the inner cavity of the protection assembly, and is used for recycling the pollutants discharged from the protection assembly for reuse; the observation platform assembly is arranged inside the protection assembly and beside the filter press, and comprises a supporting part and an observation platform arranged on the supporting part, and a guardrail is arranged on one side of the observation platform close to the filter press.

[0013] In the above scheme, the protection assembly is used in cooperation with the collection assembly, the protection assembly covers the filter press, the spreading range of the pollutants generated during the operation of the filter press is limited, the collection assembly is used for recycling the pollutants gathered inside the protection assembly, the product quality and the health of the operators are protected, the waste of the pollutants is avoided, the recycled pollutants can be reused, and the utilization rate of resources is improved. Meanwhile, the air inlet is arranged to promote the replacement of the air inside the protection assembly with the air outside the protection assembly, so that the temperature inside the protection assembly is reduced, and the operators cannot work near the filter press for a long time. In addition, the observation platform assembly is arranged to enable the operators to work near the filter press, and the operators are protected; when the operators stand on the top of the observation platform, the operators are generally separated from the circumferential area of the filter press by a certain distance in the vertical direction, so that the influence of the high temperature of the circumferential area of the filter press on the operators is reduced; and the guardrails are arranged to protect the operators, and the two guardrails are connected with the observation platform and the supporting part, so that the operators will not fall down during the movement to the top of the observation platform and the standing on the top of the observation platform.

[0014] Further technical scheme, the observation platform assembly is provided with two, two observation platform assemblies are configured to be symmetrically arranged in the width direction of the filter press during operation, which facilitates the observation of the operators from both sides and the observation of two operators at the same time without interference.

[0015] Further technical scheme, the collection assembly comprises an absorption device and a guide component connected with each other, the protection assembly is provided with a discharge port, and the discharge port is connected with the absorption device through the guide component; the absorption device can recycle the pollutants inside the protection assembly through the discharge port and the guide component, specifically, the absorption device can exert suction force on the pollutants, so that the pollutants are first discharged from the inside of the protection assembly through the discharge port and then enter the absorption device along the extension direction of the guide component.

[0016] Further, the protective assembly is provided with at least one fresh air unit outside, which is used to replace the air inside the protective assembly through the air inlet, and the air filtered by the fresh air unit is supplied to the inside of the protective assembly to replace the high-temperature air, so as to avoid the influence of temperature on the observation task of the operator.

[0017] Further, the protective assembly comprises a top cover and a main frame connected together, and the main frame and the top cover form a containing space with an opening downward and used for covering the filter press, wherein the main frame can cover the filter press from the side, and the top cover can cover the filter press from above; and the top cover is provided with a discharge port for facilitating the recovery of pollutants by the collection assembly.

[0018] Further, the top cover comprises at least one fixed sub-cover fixed to the main frame and at least one movable sub-cover detachably arranged on the main frame, and the discharge port is arranged on the fixed sub-cover; both the fixed sub-cover and the movable sub-cover can cover the filter press from above, and in other aspects, the fixed sub-cover is provided with an inlet port to keep the inlet port stable, and the movable sub-cover can be arranged separately from the main frame to facilitate the maintenance of the filter press.

[0019] Further, the main frame is provided with at least one step entrance, and the protective assembly further comprises at least one door assembly, which comprises a door plate used for blocking the step entrance and movable relative to the main frame. The door plate has a first state and a second state; in the first state, the door plate blocks the step entrance to prevent the leakage of pollutants; and in the second state, the door plate is separated from the step entrance to facilitate the operator to enter and exit the inside of the protective assembly through the step entrance.

[0020] Further, the door plate is provided with a guide moving part for facilitating the movement of the door plate.

[0021] Further, the door plate comprises a first door plate and a second door plate, the guide moving part comprises a plurality of rollers, each of which is arranged on the upper side and the lower side of the first door plate and the second door plate; and the door assembly further comprises a fixed cross beam fixed relative to the main frame, and the fixed cross beam is provided with a guide rail corresponding to the rollers on the upper side of the first door plate and the upper side of the second door plate.

[0022] Further, at least part of the periphery of the step entrance extends to the door plate and is provided with a protective flange.

[0023] As for "first", "second", etc. used herein, it does not mean to particularly indicate the order or sequence, nor to limit the present application, but only to distinguish the components or operations described by the same technical terms.

[0024] As used herein, the terms "connected," "coupled," or "positioned" are used broadly and encompass both direct and indirect connections, couplings, or positioning, as well as any two or more components or devices that are coupled or associated with each other in a manner that enables the components or devices to perform an action.

[0025] As used herein, the terms "comprises," "comprising," "includes," "including," "has," "having," and the like are open-ended terms that are intended to permit but not limit the item or items being modified.

[0026] As used herein, the terms "comprises," "comprising," "includes," "including," "has," "having," and the like are open-ended terms that are intended to permit but not limit the item or items being modified.

[0027] As used herein, the terms "comprises," "comprising," "includes," "including," "has," "having," and the like are open-ended terms that are intended to permit but not limit the item or items being modified.

[0028] The working principle and advantages of the utility model are as follows: the protection assembly is used in cooperation with the collecting assembly, the pollution spread range generated when the filter press works can be limited because the protection assembly covers the filter press, then the pollution gathered in the inside of the protection assembly is recycled by the collecting assembly, the product quality and the health of the operator are avoided from being influenced by these pollutions, the pollutions can be recycled and used again, the resource utilization rate is improved, air inside and outside the protection assembly can be replaced by the setting of the air inlet, the temperature inside the protection assembly is reduced, the operator can not work near the filter press for a long time, the observation platform assembly is set, the operator can work near the filter press, the operator can be protected, when the operator stands on the top of the observation platform, the operator is generally separated from the circumferential area of the filter press by a certain distance in the vertical direction, the influence of the higher temperature of the circumferential area of the filter press on the operator is reduced, the guardrails are set, the operator can be protected, the two guardrails are connected with the observation platform and the support part, the operator can not fall down during moving to the top of the observation platform and standing on the top of the observation platform. BRIEF DESCRIPTION OF DRAWINGS

[0029] ATTACHMENT Figure 1 It is a side view of the filter press protection and dust collection device of the utility model embodiment;

[0030] ATTACHMENT Figure 2 It is a structure schematic view of the observation platform assembly of the utility model embodiment;

[0031] ATTACHMENT Figure 3A top view of the protection assembly of the utility model embodiment;

[0032] Attached Figure 4 A side view of the door assembly of the utility model embodiment;

[0033] Attached Figure 5 A partial structure schematic view of the door assembly of the utility model embodiment;

[0034] Attached Figure 6 A position schematic view of the plurality of first door plates and the plurality of second door plates of the utility model embodiment;

[0035] Attached Figure 7 A side view of the filter press and the observation platform assembly of the utility model embodiment;

[0036] Attached Figure 8 A top view of the filter press and the observation platform assembly of the utility model embodiment;

[0037] Attached Figure 9 A structure schematic view of the fresh air handling unit and the filter press of the utility model embodiment.

[0038] In the above drawings: 1, protection assembly; 11, air inlet; 12, discharge port; 13, top cover; 131, fixed sub-cover; 132, movable sub-cover; 14, main body frame; 15, door assembly; 151, door plate; 1511, first door plate; 1512, second door plate; 152, guide moving piece; 1521, first moving sub-piece; 1522, second moving sub-piece; 1523, third moving sub-piece; 1524, fourth moving sub-piece; 153, fixed cross beam; 154, protection baffle; 155, guide rail; 1551, limiting groove; 2, collection assembly; 21, absorption device; 22, guide component; 221, first pipeline; 222, second pipeline; 3, observation platform assembly; 31, observation platform; 32, support part; 33, guardrail; 4, fresh air handling unit; 5, filter press. DETAILED DESCRIPTION

[0039] The utility model will be further described below in combination with the drawings and embodiments:

[0040] Embodiment: the present case will be clearly explained by the drawings and detailed description, any person skilled in the art can change and modify the technology taught by the present case after understanding the embodiment of the present case, which does not deviate from the spirit and scope of the present case.

[0041] The language in this paper is only for describing specific embodiments and is not intended to limit the present case. The singular form such as "a", "this", "this", "this" and "the" is also used in this paper, which also includes the plural form.

[0042] Reference Figures 1-9The utility model provides a kind of filter press protection and dust collection device for ternary precursor washing, including protection component 1, collection component 2 and observation platform component 3, wherein, the protection component 1 is used to cover at least part of filter press 5 to limit the spread range of pollutant, at least one air inlet 11 is provided on the protection component 1 to reduce the temperature inside the protection component 1;The collection component 2 is installed outside the protection component 1 and is connected with the inner cavity of the protection component 1, and the collection component 2 is used to recycle the pollutant discharged by the protection component 1 for reuse;The observation platform component 3 is arranged in the protection component 1 and located beside the filter press 5, and the observation platform component 3 includes a support part 32, an observation platform 31 arranged on the support part 32, and a guardrail 33 arranged on one side of the observation platform 31 close to the filter press 5.

[0043] The support part 32 is used to support and elevate the observation platform 31 and provide convenience for operators to get on the observation platform 31.

[0044] Optionally, along the width direction of the observation platform 31, two guardrails 33 are respectively arranged at both ends of the observation platform 31.

[0045] The utility model is used to protect operators and recycle pollutants when the filter press 5 is working.

[0046] The protection component 1 is used in combination with the collection component 2, as the protection component 1 covers the filter press 5, it can limit the spread range of pollutants generated when the filter press 5 is working (material flying dust generated when the filter press 5 is unloaded and a small amount of ammonia gas escaped during the washing process of the filter press 5), and then the collection component 2 is used to recycle the pollutants accumulated inside the protection component 1, so as to avoid affecting product quality and operator health, and also avoid wasting pollutants, which can be reused after being recycled, thereby improving resource utilization.

[0047] The protection component 1 covers the filter press 5, and the protection component 1 can be made of stainless steel with a thickness generally greater than 2 mm. Figure 8 For example, the area between the center of the thrust plate of the filter press 5 and the oil cylinder is covered by the protection component 1 (e.g. Area A in the middle). The size of the protection component 1 is adjusted according to the covering requirements.

[0048] The air inlet 11 is arranged on the protection component 1, and the size, number and position of the air inlet 11 can be adjusted according to actual conditions, which are not limited herein. For example, the protection component 1 is arranged in a square structure, and any two ends symmetrically distributed at the bottom end of the protection component 1 are respectively provided with two air inlets 11.

[0049] The filter press 5 is washed by high-temperature pure water, so that the temperature of the area near the filter press 5 is too high, which is not conducive to the long-term work of the operator. The air inlet 11 can promote the replacement of the air inside and outside the protective assembly 1, so as to reduce the temperature inside the protective assembly 1 and avoid the operator from working near the filter press 5 for a long time.

[0050] The observation platform assembly 3 can achieve the purpose of allowing the operator to approach the filter press 5 and protect the operator. The support part 32 can be regarded as an existing operation step structure or a stair structure. The operator can move to the top of the observation platform 31 through the support part 32 to observe whether the filter cloth material is completely separated, whether the filter cloth is intact, and the like. In addition to being supported by the support part 32, a support frame can be additionally arranged at the bottom of the observation platform 31. When the operator stands on the top of the observation platform 31, he / she is generally separated from the circumferential area of the filter press 5 in the vertical direction by a certain distance, so that the influence of the high temperature of the circumferential area of the filter press 5 on the operator is reduced. The guardrail 33 can protect the operator from falling during the process of moving to the top of the observation platform 31 and standing on the top of the observation platform 31.

[0051] The observation platform assembly 3 can be regarded as a climbing operation platform with the guardrail 33 and the stair structure.

[0052] Referring to Figure 7 、 Figure 8 In the embodiment, the observation platform assembly 3 is provided in two, which are symmetrically arranged along the width direction of the filter press 5 during work, and the length direction of the observation platform 31 is parallel to the length direction of the filter press 5.

[0053] The number of the observation platform assembly 3 and the arrangement thereof during work are limited in the embodiment, which facilitates the observation of the operator from both sides and the observation of two operators at the same time without interference.

[0054] Referring to Figure 1 、 Figure 3 In the embodiment, the collection assembly 2 includes the absorption device 21 and the guide part 22 connected with each other. The protective assembly 1 is provided with the discharge port 12. The absorption device 21 can recover the pollutants inside the protective assembly 1 through the discharge port 12 and the guide part 22.

[0055] Optionally, the absorption device 21 is provided as an existing tail gas absorption device, such as a combination device of a tail gas absorption tower and a fan, which is a prior art and will not be described in detail.

[0056] Optionally, the guide part 22 is provided as a pipeline structure (such as a hose).

[0057] The suction device 21 can exert suction on the pollutants, so that the pollutants are first discharged from the inside of the protection assembly 1 through the discharge port 12 and then enter the suction device 21 along the extension direction of the guide component 22, which not only improves the air environment inside the protection assembly 1, but also recycles the pollutants.

[0058] The size, number, position, etc. of the discharge port 12 can be adjusted according to actual conditions, which are not limited here. Exemplarily, the discharge port 12 is provided as two, at this time, the guide component 22 can include a first pipe 221 and a second pipe 222, the second pipe 222 is connected with the suction device 21 and communicates with the first pipe 221, the first pipe 221 has a feeding hole at both ends, and the first pipe 221 is arranged at both ends of the two discharge ports 12, respectively.

[0059] Referring to Figure 9 In this embodiment, in order to further reduce the influence of temperature factors on the operator, at least one fresh air unit 4 is arranged outside the protection assembly 1, and the fresh air unit 4 is used to replace the air inside the protection assembly 1 through the air inlet 11.

[0060] The position and number of the fresh air unit 4 need to be adjusted according to the specific arrangement of the air inlet 11, for example, any two ends symmetrically distributed at the bottom end of the protection assembly 1 are respectively provided with two air inlets 11 (as a group of air inlets 11), at this time, one side of the two groups of air inlets 11 can be provided with a fresh air unit 4, and the air filtered by the fresh air unit 4 is supplemented to the inside of the protection assembly 1 to replace the high-temperature air, so as to avoid the influence of temperature factors on the operator to perform observation tasks, and also improve the air quality inside the protection assembly 1.

[0061] Referring to Figure 1 , Figure 3 In this embodiment, the protection assembly 1 includes a top cover 13 and a main frame 14 connected with each other, the main frame 14 and the top cover 13 form a containing space with an opening downward and used for covering the filter press 5, and the top cover 13 is provided with a discharge port 12 for facilitating the collection assembly 2 to recycle the pollutants. The air inlet 11 is arranged on the main frame 14.

[0062] The air inlet 11 can be arranged on any one of the top cover 13 and the main frame 14, and is generally arranged on the main frame 14.

[0063] This embodiment further describes the protection assembly 1, wherein the main frame 14 can cover the filter press 5 from the side, and the top cover 13 can cover the filter press 5 from above. The main frame 14 can be made of stainless steel.

[0064] Referring to Figure 3In the embodiment, the top cover 13 comprises at least one fixed sub-cover 131 fixedly arranged on the main frame 14 and at least one movable sub-cover 132 detachably arranged on the main frame 14, and the discharge port 12 is arranged on the fixed sub-cover 131.

[0065] The fixed sub-cover 131 and the movable sub-cover 132 can cover the filter press 5 from above, and in other aspects, the fixed sub-cover 131 is provided with a feeding port to keep the feeding port stable, and the movable sub-cover 132 can be arranged separately from the main frame 14 to facilitate maintenance of the filter press 5.

[0066] Optionally, the fixed sub-cover 131 and the main frame 14 are fixedly connected by welding or the like, and the movable sub-cover 132 and the main frame 14 are detachably connected by threaded connection or the like.

[0067] Optionally, the top cover 13 comprises two fixed sub-covers 131 and a plurality (such as four) of movable sub-covers 132, wherein each movable sub-cover 132 is between two fixed sub-covers 131, and the discharge port 12 can be correspondingly provided as two, and the two discharge ports 12 are arranged on the two fixed sub-covers 131.

[0068] Optionally, the fixed sub-cover 131 is provided as a transparent tempered glass, and / or the movable sub-cover 132 is provided as a transparent tempered glass.

[0069] Optionally, a hollow space is arranged between the fixed sub-cover 131 and the movable sub-cover 132, and a transparent tempered glass installed on the main frame 14 is arranged at the hollow space.

[0070] Referring to Figure 4 In the embodiment, at least one step entrance is arranged on the main frame 14 to facilitate the entry and exit of the operator inside the protection assembly 1, and the protection assembly 1 further comprises at least one door assembly 15, and the door assembly 15 comprises a door plate 151, which is used to block the step entrance and is movable relative to the main frame 14.

[0071] The door plate 151 or the door plate 15 has a first state and a second state, and the door assembly 15 is taken as an example. When the door assembly 15 is in the first state, the door plate 151 completely blocks the step entrance to prevent the leakage of pollutants; when the door assembly 15 is in the second state, the door plate 151 is separated from the step entrance or only blocks part of the area of the step entrance, so as to facilitate the entry and exit of the operator inside the protection assembly 1. Blocking the step entrance can be understood as blocking the opening or the like of the step entrance.

[0072] Optionally, along the width direction of the filter press 5, both ends of the main frame 14 are provided with multiple (for example, three) step entrances which are distributed along the length direction of the filter press 5, and the number of the door assemblies 15 is adjusted correspondingly. Generally, the number of the door assemblies 15 is the same as that of the step entrances.

[0073] Referring to Figure 4 In the embodiment, the door plate 151 is provided with a guide moving part 152 which is used to facilitate the movement of the door plate 151.

[0074] As mentioned above, when the door assembly 15 is in the first state, the door plate 151 blocks the step entrance, and the door plate 151 can be transferred between the first position and the second position, and correspondingly, the door assembly 15 is switched between the first state and the second state. The guide moving part 152 facilitates the transfer of the door plate 151. For example, in manual operation, the operator pushes the door plate 151, and under the intervention of the guide moving part 152, the resistance of the door plate 151 during movement is reduced.

[0075] Referring to Figure 4 , Figure 5 In the embodiment, the door plate 151 includes a first door plate 1511 and a second door plate 1512, and the guide moving part 152 includes multiple groups of rollers, each of which is arranged on the upper side and the lower side of the first door plate 1511 and the second door plate 1512. The door assembly 15 further includes a fixed crossbeam 153 which is fixed relative to the main frame 14, and the fixed crossbeam 153 is provided with guide rails corresponding to the rollers on the upper side of the first door plate 1511 and the upper side of the second door plate 1512.

[0076] For the convenience of understanding, the door assembly 15 can be regarded as an existing sliding door structure arranged in a balcony or a kitchen.

[0077] Optionally, the guiding moving part 152 comprises a first moving subpart 1521, a second moving subpart 1522, a third moving subpart 1523 and a fourth moving subpart 1524, the first moving subpart 1521 and the second moving subpart 1522 are respectively installed on both sides of the first door plate 1511 along the vertical direction, and the third moving subpart 1523 and the fourth moving subpart 1524 are respectively installed on both sides of the second door plate 1512 along the vertical direction; each moving part is provided as a roller or a roller set. Taking the step entrance as a square hole (the square hole in the following refers to the step entrance), the fixed cross beam 153 is installed on the top wall of the square hole, the fixed cross beam 153 is provided with a guide rail 155 at the bottom, the guide rail 155 is provided with two limiting grooves 1551 distributed along the width direction of the filter press 5, and the limiting grooves 1551 extend along the length direction of the filter press 5; here, the heights of the first moving subpart 1521 and the third moving subpart 1523 are higher than those of the other two moving subparts, one end of the first moving subpart 1521 and the third moving subpart 1523 are respectively inserted into the two limiting grooves 1551, and the second moving subpart 1522 and the fourth moving subpart 1524 contact the bottom wall of the square hole or the ground according to the arrangement of the square hole; the guide rail can also be arranged on the bottom wall of the square hole.

[0078] The first door plate 1511 and the second door plate 1512 are respectively used to block part of the area of the step entrance, and when the operator needs to enter or exit the inside of the protection assembly 1, any one of the two can be moved. It needs to be supplemented here that when there is only one door-shaped structure, the door-shaped structure can be attached to the outer surface of the main frame 14, and the door-shaped structure itself can limit the leakage of pollutants. In the case of arranging two door-shaped structures, the two door-shaped structures need to be arranged in the square hole to cooperate with the two side walls of the square hole to limit the leakage of pollutants.

[0079] In the embodiment, at least part of the periphery of the step entrance extends to the door plate 151 and is provided with a protective baffle 154.

[0080] Optionally, the fixed cross beam 153 is provided with a protective baffle 154 covering the top end of the first door plate 1511 and the top end of the second door plate 1512.

[0081] The pollutants can leak through the spacing area between the rollers, and the arrangement of the protective baffle 154 can avoid this situation.

[0082] In the embodiment, in order to facilitate the operator outside the protection assembly 1 to observe the situation inside the protection assembly 1 from the side, the first door plate 1511 and the second door plate 1512 are provided as transparent structures, such as transparent reinforced plates with a thickness of 10 mm.

[0083] The above examples are only for illustrating the technical concept and characteristics of the present application, and the purpose is to enable those skilled in the art to understand the content of the present application and to implement it, and cannot limit the protection scope of the present application. Any equivalent changes or modifications made according to the spirit and essence of the present application shall be covered within the protection scope of the present application.

Claims

1. A filter press protection and dust collection device for use in cleaning a ternary precursor, characterized in that: The application relates to a protective assembly (1), a collecting assembly (2) and an observation platform assembly (3), wherein the protective assembly (1) is used for covering at least part of a filter press (5) to limit the spreading range of pollutants, at least one air inlet (11) is arranged on the protective assembly (1) to reduce the temperature on the inner side of the protective assembly (1); the collecting assembly (2) is arranged on the outer side of the protective assembly (1) and connected with the inner cavity of the protective assembly (1), and the collecting assembly (2) is used for recycling the pollutants discharged from the protective assembly (1) for repeated use; the observation platform assembly (3) is arranged in the protective assembly (1) and located beside the filter press (5), and the observation platform assembly (3) comprises a supporting part (32) and an observation platform (31) arranged on the supporting part (32), and a guardrail (33) is arranged on the side of the observation platform (31) close to the filter press (5).

2. The filter press protection and dust collection device for trinary precursor washing according to claim 1, characterized in that: The observation platform assembly (3) is arranged in two, and the two observation platform assemblies (3) are arranged symmetrically in the width direction of the filter press (5) during work.

3. The filter press protection and dust collection device for trinary precursor washing according to claim 1, characterized in that: The collecting assembly (2) comprises connected absorption devices (21) and guide components (22), the protective assembly (1) is provided with a discharge port (12), the discharge port (12) is connected with the absorption devices (21) through the guide components (22), and the absorption devices (21) are used for recycling the pollutants on the inner side of the protective assembly (1).

4. The filter press protection and dust collection device for trinary precursor washing according to claim 1, characterized in that: At least one fresh air unit (4) is arranged on the outer side of the protective assembly (1), and the fresh air unit (4) is used for replacing the air on the inner side of the protective assembly (1) through the air inlet (11).

5. The filter press protection and dust collection device for trinary precursor washing according to claim 1, characterized in that: The protective assembly (1) comprises connected top covers (13) and main body frames (14), the main body frame (14) and the top cover (13) form a containing space with an opening downward and used for covering the filter press (5), and the top cover (13) is provided with the discharge port (12) for facilitating the collecting assembly (2) to recycle the pollutants.

6. The filter press protection and dust collection device for trinary precursor washing according to claim 5, characterized in that: The top cover (13) comprises at least one fixed sub-cover (131) fixedly arranged on the main body frame (14) and at least one movable sub-cover (132) detachably arranged on the main body frame (14), and the discharge port (12) is arranged on the fixed sub-cover (131).

7. The filter press protection and dust collection device for trinary precursor washing according to claim 5, characterized in that: The main body frame (14) is provided with at least one step entrance, and the protective assembly (1) further comprises at least one door assembly (15), the door assembly (15) comprises a door plate (151), the door plate (151) is used for blocking the step entrance and can be moved relative to the main body frame (14).

8. The filter press protection and dust collection device for trinary precursor washing according to claim 7, characterized in that: The door plate (151) is provided with a guide moving piece (152), and the guide moving piece (152) is used for facilitating the movement of the door plate (151).

9. The filter press protection and dust collection device for trinary precursor washing according to claim 8, characterized in that: The door panel (151) comprises a first door panel (1511) and a second door panel (1512), the guide moving part (152) comprises a plurality of groups of rollers, each of the rollers is arranged on the upper side and the lower side of the first door panel (1511) and the second door panel (1512) respectively; the door assembly (15) further comprises a fixed crossbeam (153) fixed relative to the main body frame (14), and the fixed crossbeam (153) is provided with a guide rail corresponding to the rollers on the upper side of the first door panel (1511) and the upper side of the second door panel (1512).

10. A filter press protection and dust collection device for use in cleaning a ternary precursor according to any one of claims 7-9, characterized in that: The periphery of the step entrance is provided with a protective edge (154) extending towards the door panel (151).

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