Secondary circulation cleaning device and electrolytic aluminum dust remover

Abstract

The utility model discloses a secondary circulation cleaning device and an electrolytic aluminum dust remover, the electrolytic aluminum dust remover comprises a dust remover box body, the secondary circulation cleaning device comprises a material distribution chute, a sliding assembly and a material blocking piece, the material distribution chute is provided with a feeding port used for being communicated with the dust remover box body, and the material distribution chute comprises a top plate and a bottom plate which are oppositely arranged; first side plates are connected to the ends, away from the feeding opening, of the top plate and the bottom plate correspondingly, and slag removing holes are formed in the first side plates; the sliding assembly is arranged in the first direction, and at least part of the sliding assembly is arranged in the material distribution chute; the material blocking piece is connected to the sliding assembly in a sliding mode, and the material blocking piece is configured to slide in the first direction so as to block or open the feeding port. According to the secondary circulation cleaning device of the electrolytic aluminum dust remover, through the design that a single material distribution chute is allowed to be blocked and cleaned, efficient and flexible maintenance in a single purification system is achieved, the necessity of shutdown of the whole machine is avoided, and the production efficiency and the system stability are remarkably improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electrolytic aluminum dust collector, and particularly to a secondary circulation cleaning device and an electrolytic aluminum dust collector. BACKGROUND

[0002] As a high energy consumption and high pollution industry, the purification of flue gas generated in the production process of the electrolytic aluminum industry has always been the focus of the industry. The dry purification of electrolytic aluminum uses aluminum oxide, a production raw material of aluminum electrolysis, as an adsorbent to adsorb harmful components such as hydrogen fluoride in aluminum electrolysis flue gas, and the recovered fluorine-containing aluminum oxide can be returned to the electrolytic production for continuous use. The core equipment of the dry purification of electrolytic aluminum is a dust collector, which can effectively remove harmful substances in the flue gas by using a dry purification method for adsorption reaction. In the operation process of the dust collector, the secondary circulation of the feed material is crucial to the adsorption of fluorides and environmental protection data control.

[0003] However, the secondary circulation material of the dust collector often contains impurities. In order to ensure the smoothness of the secondary circulation of the dust collector in the workshop, the personnel of the shift team need to regularly clean the impurities in the distribution chute of each stage of the dust collector. However, due to the large number of distribution chutes in a single purification system, the cleaning of the distribution chutes is not only tedious but also time-consuming. In actual operation, if the purification system is shut down for cleaning the distribution chutes, not only will it cause the interruption of the production line and seriously affect the production efficiency, but also it will greatly increase the equipment maintenance cost due to frequent shutdowns. CONTENT OF THE INVENTION

[0004] The present application provides a secondary circulation cleaning device and an electrolytic aluminum dust collector, which can solve the problem of a significant decrease in production efficiency caused by shutting down the entire purification system of the electrolytic aluminum dust collector to clean the secondary circulation distribution chute.

[0005] In a first aspect, the present application provides a secondary circulation cleaning device for an electrolytic aluminum dust collector, wherein the electrolytic aluminum dust collector comprises a dust collector box body, and the secondary circulation cleaning device comprises a distribution chute, a sliding assembly, and a blocking piece. The distribution chute has a feed inlet for communicating with the dust collector box body. The distribution chute comprises a top plate and a bottom plate arranged oppositely, and the top plate and the bottom plate are both connected with a first side plate at an end away from the feed inlet. The first side plate is provided with a slag removal hole. The sliding assembly is arranged in a first direction and is at least partially arranged in the distribution chute. The blocking piece is slidingly connected to the sliding assembly. The blocking piece is configured to slide in the first direction to block or open the feed inlet.

[0006] In some embodiments, the sliding assembly comprises a first sliding part and a second sliding part, the first sliding part is arranged in the distribution chute, and the second sliding part is arranged outside the distribution chute; the blocking piece comprises a blocking plate body and a third sliding part connected with the blocking plate body; the third sliding part is slidingly connected to the first sliding part or the second sliding part.

[0007] In some embodiments, the distribution chute further comprises a second side plate and a third side plate arranged between the top plate and the bottom plate, the third side plate has a mounting hole; the blocking piece is arranged in the mounting hole.

[0008] In some embodiments, the second sliding part is connected with at least one of an outer wall of the dust collector box and an outer wall of the third side plate.

[0009] In some embodiments, the blocking piece further comprises a flow distribution guide part connected with the blocking plate body, an end of the flow distribution guide part away from the blocking plate body has a first guide surface and a second guide surface connected at an angle; when the blocking piece slides in a first direction to block the feeding port, the first guide surface and the second guide surface are used to guide the material at the feeding port to both sides of the blocking piece.

[0010] In some embodiments, the thickness of the end of the flow distribution guide part close to the blocking plate body is greater than the thickness of the blocking plate body, so as to form a limiting step on the end surface of the flow distribution guide part.

[0011] In some embodiments, the blocking piece further comprises a holding part arranged on a side of the blocking plate body away from the flow distribution guide part, for a person to hold to push / pull the blocking piece.

[0012] In some embodiments, the distribution chute further comprises an end cover, the end cover is coveringly connected to the slag removal hole to close the slag removal hole.

[0013] In some embodiments, the distribution chute further comprises a slag removal valve arranged on the slag removal hole, and a controller electrically connected with the slag removal valve, wherein the controller is used to control the opening and closing of the slag removal valve.

[0014] In a second aspect, the application further provides an electrolytic aluminum dust collector, comprising a dust collector box and a secondary circulation cleaning device, the secondary circulation cleaning device comprises a distribution chute having a feeding port communicating with the dust collector box, and a blocking piece configured to be movable in a first direction to block or open the feeding port.

[0015] The secondary circulation cleaning device and the electrolytic aluminum dust collector according to the embodiments of the present application, the secondary circulation cleaning device comprises a distribution chute, a sliding assembly and a blocking piece, wherein the distribution chute is provided with an inlet for communicating with a dust collector box, the distribution chute comprises oppositely arranged top and bottom plates, and the top and bottom plates are both connected with a first side plate at an end away from the inlet, wherein the first side plate is provided with a slag removal hole; the sliding assembly is arranged in a first direction and at least partially arranged in the distribution chute; and the blocking piece is slidingly connected with the sliding assembly, wherein the blocking piece is configured to slide in the first direction to block or open the inlet. By introducing the combined design of the blocking piece and the sliding assembly, flexible blocking and opening of a single distribution chute are realized. In a single purification system, a single distribution chute can be blocked and cleaned, and in this process, the entire purification system does not need to be shut down, and other distribution chutes can continue to work normally, ensuring the continuity and stability of the entire system. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0017] Figure 1 FIG. 1 is a structural schematic diagram of a secondary circulation cleaning device according to an embodiment of the present application;

[0018] Figure 2 FIG. 1 is a structural schematic diagram of a secondary circulation cleaning device according to an embodiment of the present application;

[0019] Figure 3 FIG. 1 is a structural schematic diagram of a secondary circulation cleaning device according to an embodiment of the present application;

[0020] Figure 4 FIG. 1 is a structural schematic diagram of a secondary circulation cleaning device according to an embodiment of the present application;

[0021] LIST OF REFERENCE NUMERALS

[0022] 1, secondary circulation cleaning device; 2, electrolytic aluminum dust collector;

[0023] 10, distribution chute; 20, sliding assembly; 30, blocking piece; 40, dust collector box;

[0024] 11, top plate; 12, bottom plate; 13, first side plate; 14, second side plate; 15, third side plate;

[0025] 100, feed inlet; 110, quick opening hole; 130, slag hole; 121, discharging pipe; 150, mounting hole;

[0026] 21, first sliding part; 22, second sliding part;

[0027] 31, plugging plate body; 32, third sliding part; 33, shunt guide part; 34, holding part;

[0028] 331, first guide surface; 332, second guide surface; 333, limiting step. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application is further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and do not limit the present application.

[0030] In the electrolytic aluminum dry purification, the purification system of the electrolytic aluminum dust collector needs to be cleaned regularly. Due to the large number of material distribution chutes in a single purification system, if the cleaning method of stopping the whole machine will cause a significant reduction in production efficiency, therefore, the present application provides a secondary circulating cleaning device and an electrolytic aluminum dust collector. The secondary circulating cleaning device of the present application allows the sealing and cleaning of a single material distribution chute, realizes efficient and flexible maintenance in a single purification system, avoids the necessity of stopping the whole machine, and significantly improves the production efficiency and system stability.

[0031] The present application will be described in detail below in combination with specific embodiments. It should be noted that the secondary circulating cleaning device of the present application is not limited to be used in the electrolytic aluminum dust collector shown in the drawings, but can also be provided on electrolytic aluminum dust collectors of other structures.

[0032] Please refer to Figure 1 , Figure 1 A structure diagram of a secondary circulating cleaning device 1 of the present application, the secondary circulating cleaning device 1 of the present application is used in an electrolytic aluminum dust collector 2, wherein the secondary circulating cleaning device 1 comprises a material distribution chute 10, a sliding assembly 20 and a plugging piece 30, and the electrolytic aluminum dust collector 2 comprises a dust collector box 40.

[0033] Please refer to Figures 1-3 , Figure 2 A first cross-sectional view of a secondary circulating cleaning device 1 of the present application, Figure 3Figure 2 is a second cross-sectional view of the secondary circulating cleaning device 1 according to an embodiment of the present application. The distribution chute 10 has an inlet 100 connected to the dust collector box 40. The distribution chute 10 includes a top plate 11, a bottom plate 12, a first side plate 13 connected to the top plate 11 and the bottom plate 12 at an end away from the inlet 100, and a second side plate 14 and a third side plate 15 arranged between the top plate 11 and the bottom plate 12. A slag removal hole 130 is arranged on the first side plate 13. An operator can insert a cleaning tool into the distribution chute 10 through the slag removal hole 130 to clean the distribution chute 10. As can be seen, the slag removal hole 130 is arranged at a lower region of the first side plate 13, which makes it more convenient for the operator to guide impurities in the distribution chute 10 out through the slag removal hole 130.

[0034] In an embodiment of the present application, an end cover is arranged on the slag removal hole 130. The end cover is connected to the slag removal hole 130 by bolts. In a specific implementation process, an operator manually opens the end cover and cleans the distribution chute 10 through the slag removal hole 130. After cleaning is completed, the operator manually closes the end cover to seal the slag removal hole 130.

[0035] In another embodiment of the present application, the slag removal hole 130 can be opened and closed by electric control. Specifically, the distribution chute 10 further includes a slag removal valve arranged on the slag removal hole 130, and a controller electrically connected to the slag removal valve. In a specific implementation process, an operator can control the opening and closing of the slag removal valve through the controller.

[0036] Further, the top plate 11 is provided with a quick opening hole 110 at an end close to the first side plate 13. The quick opening hole 110 has multiple functions. First, the quick opening hole 110 provides an observation window for an operator. The operator can observe the degree of impurity agglomeration in the distribution chute 10 through the quick opening hole 110, so as to determine whether the distribution chute 10 needs to be cleaned. Second, in the cleaning process of the distribution chute 10, if some regions inside the distribution chute 10 cannot be effectively cleaned through the slag removal hole 130 due to structural limitations or material accumulation, the operator can use appropriate cleaning tools or equipment to enter the inside of the distribution chute 10 from another angle through the quick opening hole 110, and thoroughly clean the regions that are difficult to reach.

[0037] In an embodiment of the present application, the bottom plate 12 is provided with downwardly connected discharge pipes 121. It should be noted that, in the embodiment of the present application, the direction in which the top plate 11 faces the bottom plate 12 is the height direction of the distribution chute 10, the direction in which the first side plate 13 faces the inlet 100 is the length direction of the distribution chute 10, and the direction in which the second side plate 14 faces the third side plate 15 is the width direction of the distribution chute 10. The four discharge pipes 121 are arranged along the length direction of the distribution chute 10.

[0038] In an embodiment of the present application, the sliding assembly 20 is arranged along a first direction, and the sliding assembly 20 is arranged at least partially in the distribution chute 10. The blocking member 30 is slidingly connected to the sliding assembly 20, wherein the blocking member 30 is configured to slide along the first direction to block or open the feeding port 100. It can be understood that the first direction herein is the width direction of the distribution chute 10. Thus, the operator can block the feeding port 100 of the distribution chute 10 by the blocking member 30, so as to separate the distribution chute 10 from the dust collector box 40, thereby cleaning the single distribution chute 10 without affecting the work of other distribution chutes 10, which can effectively ensure the continuity and stability of the purification system.

[0039] In an embodiment of the present application, the sliding assembly 20 comprises a first sliding part 21 and a second sliding part 22, wherein the first sliding part 21 is arranged in the distribution chute 10, and the second sliding part 22 is arranged outside the distribution chute 10. The blocking member 30 comprises a blocking plate body 31 and a third sliding part 32, wherein the third sliding part 32 is arranged at the top end of the blocking plate body 31. It should be noted that in the embodiment of the present application, the third sliding part 32 can slide in the sliding assembly 20 along the first direction. After the blocking member 30 slides to block the feeding port 100, the third sliding part 32 is slidingly connected to the first sliding part 21, and after the blocking member 30 slides to open the feeding port 100, the third sliding part 32 is slidingly connected to the second sliding part 22. Thus, the first sliding part 21 and the second sliding part 22 provide stable support and guidance for the sliding of the blocking member 30, and during the movement of the third sliding part 32 between the first sliding part 21 and the second sliding part 22, the blocking member 30 can move along the first direction to block or open the feeding port 100 stably.

[0040] In the embodiment of the present application, the blocking member 30 moves along the first direction towards the second side plate 14 until the third side plate 15 is contacted, so as to block the feeding port 100; and the blocking member 30 moves along the first direction away from the second side plate 14, so as to open the feeding port 100. In contrast, the third side plate 15 provides a passing channel for the blocking member 30, and the third side plate 15 has a mounting hole 150, and the blocking member 30 is arranged in the mounting hole 150.

[0041] It can be understood that when the blocking member 30 moves in the first direction away from the second side plate 14, the blocking member 30 gradually extends out of the distribution chute 10. In order to avoid the part of the blocking member 30 extending out of the distribution chute 10 from being deviated, the second sliding part 22 is arranged to provide guidance and support for the blocking member 30. In a preferred embodiment of the present application, the second sliding part 22 is connected with the outer wall of the dust collector box 40. In another preferred embodiment of the present application, the second sliding part 22 is connected with the outer wall of the third side plate 15. In the above two arrangement modes, the sliding assembly 20 can provide stable support and guidance for the blocking member 30, so that the stability and accuracy of the movement of the blocking member 30 are ensured.

[0042] Further, in order to avoid the material from being accumulated in the first sliding part 21, the first sliding part 21 in the embodiment of the present application is a sliding groove arranged on the top plate 11.

[0043] In an embodiment of the present application, the blocking member 30 further comprises a flow guiding part 33. Please refer to Figure 4 , Figure 4 is an enlarged schematic view of a flow guiding part 33 in an embodiment of the present application. The flow guiding part 33 is connected to one end of the blocking plate body 31 close to the second side plate 14, and the end of the flow guiding part 33 away from the blocking plate body 31 has a first guiding surface 331 and a second guiding surface 332 connected at an angle. The flow guiding part 33 is used to effectively guide and flow the material. During the movement of the blocking member 30 towards the direction close to the second side plate 14 and the blocking of the feeding port 100, due to the flowability and inertia of the material, the material in front of the blocking member 30 is often accumulated. This not only may cause the movement of the blocking member 30 to be blocked, but also may cause a large gap between the blocking member 30 and the second side plate 14, which affects the blocking effect. However, through the guidance of the first guiding surface 331 and the second guiding surface 332, the material in front can be effectively guided to the two sides of the blocking member 30. In this way, the material will not be accumulated in front of the blocking member 30, so that the smooth movement of the blocking member 30 and the effective blocking effect are ensured.

[0044] In the embodiment of the present application, the flow guiding part 33 also has a limiting effect. Specifically, the thickness of the end of the flow guiding part 33 close to the blocking plate body 31 is greater than the thickness of the blocking plate body 31, and a limiting step 333 is formed on the end surface of the flow guiding part 33. The mounting hole 150 is installed in cooperation with the blocking plate body 31. Therefore, after the blocking member 30 moves in the direction away from the second side plate 14 and opens the feeding port 100, the limiting step 333 is suitable for limiting abutment with the third side plate 15, which effectively avoids the blocking member 30 from being separated from the distribution chute 10.

[0045] In order to facilitate the operator to control the blocking material 30, the blocking material 30 of the embodiment of the application further comprises a holding portion 34, which is arranged on the side of the blocking plate body 31 away from the flow guide portion 33. In a specific implementation, the operator can hold the holding portion 34 to push or pull the blocking material 30.

[0046] The embodiment of the application further provides an electrolytic aluminum dust collector 2, which comprises a dust collector box 40 and the secondary circulation cleaning device 1 described above. The secondary circulation cleaning device 1 comprises the material distribution chute 10 and the blocking material 30. The material distribution chute 10 has a feeding port 100 communicating with the dust collector box 40, and the blocking material 30 is configured to be movable along a first direction to block or open the feeding port 100.

[0047] In the drawings of the embodiment, the same or similar reference numerals correspond to the same or similar components; in the description of the application, it should be understood that the orientations or positional relationships indicated by the terms “upper”, “lower”, “left”, “right” and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation. Therefore, the terms describing the positional relationships in the drawings are only used for exemplary description, and cannot be understood as a limitation on the patent. For those skilled in the art, the specific meanings of the above terms can be understood according to the specific circumstances.

[0048] In addition, the descriptions involving “first”, “second” and the like in the application are only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the technical features indicated or implying the number of technical features indicated. Therefore, the features defined as “first”, “second” can explicitly or implicitly include at least one of the features. In addition, the technical solutions of various embodiments can be combined with each other, but it must be based on the fact that a person skilled in the art can realize it. When the combination of technical solutions contradicts each other or cannot be realized, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the utility model.

[0049] The above only describes the preferred embodiments of the application and does not limit the application. Any modification, equivalent replacement and improvement made within the spirit and principle of the application shall be included in the protection scope of the application.

Claims

1. A secondary circulation cleaning device for an electrolytic aluminium dust precipitator, said electrolytic aluminium dust precipitator comprising a dust precipitator housing, characterised in that, The secondary circulating cleaning device comprises: A distribution chute having a feed inlet connected to the dust collector box, the distribution chute comprising a top plate and a bottom plate arranged oppositely, and a first side plate connected to each end of the top plate and the bottom plate away from the feed inlet, wherein the first side plate is provided with a slag removal hole; A sliding assembly arranged in a first direction, the sliding assembly being at least partially arranged in the distribution chute; A blocking member slidingly connected to the sliding assembly, wherein the blocking member is configured to slide in the first direction to block or open the feed inlet.

2. The secondary circulation cleaning device of claim 1, wherein, The sliding assembly comprises a first sliding part arranged in the distribution chute and a second sliding part arranged outside the distribution chute; The blocking member comprises a blocking plate body and a third sliding part connected to the blocking plate body; The third sliding part is slidingly connected to the first sliding part or the second sliding part.

3. The secondary circulation cleaning device of claim 2, wherein, The distribution chute further comprises a second side plate and a third side plate arranged between the top plate and the bottom plate, and the third side plate is provided with a mounting hole, wherein the blocking member is arranged in the mounting hole.

4. The secondary circulation cleaning device of claim 3, wherein, The second sliding part is connected to at least one of an outer wall of the dust collector box and an outer wall of the third side plate.

5. The secondary circulation cleaning device of claim 2, wherein, The blocking member further comprises a flow distribution guide part connected to the blocking plate body, and an end of the flow distribution guide part away from the blocking plate body is provided with a first guide surface and a second guide surface connected at an angle; When the blocking member slides in the first direction to block the feed inlet, the first guide surface and the second guide surface are used to guide the material at the feed inlet to both sides of the blocking member.

6. The secondary circulation cleaning device of claim 5, wherein, An end of the flow distribution guide part close to the blocking plate body has a thickness greater than that of the blocking plate body to form a limiting step on the end surface of the flow distribution guide part.

7. The secondary circulation cleaning device of claim 5, wherein, The blocking member further comprises a holding part arranged on a side of the blocking plate body away from the flow distribution guide part, which is used for a person to hold to push / pull the blocking member.

8. The secondary circulation cleaning device of claim 1, wherein, The distribution chute further comprises an end cover connected to the slag removal hole to close the slag removal hole.

9. The secondary circulation cleaning device of claim 1, wherein, The distribution chute further comprises a slag removal valve arranged on the slag removal hole and a controller electrically connected to the slag removal valve, wherein the controller is used to control the opening and closing of the slag removal valve.

10. An aluminum electrolysis dust precipitator, characterized in that The dust collector box comprises: The secondary circulating cleaning device according to any one of claims 1-9, comprising a distribution chute having a feed inlet connected to the dust collector box; and a blocking member configured to move in a first direction to block or open the feed inlet. ​ ​ ​

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