Cleaning structure and reaction kettle

Abstract

The utility model relates to the technical field of industrial cleaning, and discloses a cleaning structure and a reaction kettle. The cleaning structure comprises a hollow rotating shaft, an adjusting block, a first connecting rod, a second connecting rod and a cleaning brush, a through groove and a fixing part are arranged on the side wall of the hollow rotating shaft, the adjusting block is located in the hollow rotating shaft and rotationally connected with the first end of the first connecting rod through the through groove, and the fixing part is rotationally connected with the first end of the second connecting rod; the second end of the first connecting rod and the second end of the second connecting rod are both connected with a cleaning brush located outside the hollow rotating shaft, and the adjusting block can move in the axial direction of the hollow rotating shaft and drive the cleaning brush to move in the radial direction of the hollow rotating shaft. Therefore, the cleaning structure can be folded when the cleaning work is not carried out, so that the cleaning structure does not need to be disassembled when the reaction kettle works and is protected from being corroded by chemical substances in the reaction kettle or being impacted by solid materials.

Description

Technical Field

[0001] This utility model relates to the field of industrial cleaning technology, specifically to a cleaning structure and a reaction vessel including the cleaning structure. Background Technology

[0002] In conventional continuous production using reactors, it is found that some material adheres to the side wall of the reactor after discharge. The reactor wall is usually cleaned by spraying through pipes or soaking and stirring in pure water. These cleaning methods use a lot of water and are inefficient.

[0003] CN214052966U discloses a cleaning device for a solvent-based polyurethane coating reactor. This device must be disassembled during normal reactor operation, thus limiting its applicability to small reactors with simple internal structures. CN212597711U discloses an internal cleaning device for a reactor. However, this device lacks a shrinkage function, causing the cleaning structure to be corroded by chemicals or impacted by materials with high solid content during reactor operation, thereby affecting its service life. Utility Model Content

[0004] The purpose of this invention is to solve the problem that the existing cleaning structure must be disassembled when the reactor is in operation, otherwise it will be corroded by the chemical substances in the reactor or impacted by solid materials.

[0005] To achieve the above objectives, this utility model provides a cleaning structure, including a hollow rotating shaft, an adjusting block, a first connecting rod, a second connecting rod, and a cleaning brush. The side wall of the hollow rotating shaft is provided with a through groove and a fixing part. The adjusting block is located inside the hollow rotating shaft and is rotatably connected to the first end of the first connecting rod through the through groove. The fixing part is rotatably connected to the first end of the second connecting rod. The second ends of the first and second connecting rods are both connected to the cleaning brush located outside the hollow rotating shaft. The adjusting block can move along the axial direction of the hollow rotating shaft and drive the cleaning brush to move radially along the hollow rotating shaft.

[0006] Optionally, the second end of the first link and the second end of the second link are rotatably connected and located in the groove of the cleaning brush.

[0007] Optionally, the middle part of the first link is rotatably connected to the middle part of the second link, the second end of the first link is rotatably connected to one end of the cleaning brush, and the second end of the second link is located in the groove of the cleaning brush. Optionally, multiple sets of corresponding through grooves, fixing parts, first links, second links, and cleaning brushes are evenly distributed along the circumference of the hollow rotating shaft.

[0008] Optionally, it also includes a fixed pulley and a rope, one end of which passes through the fixed pulley and is fixedly connected to the adjusting block.

[0009] Optionally, a plurality of marks corresponding to different positions of the cleaning brush are arranged on the rope.

[0010] Optionally, the cleaning structure further comprises a telescopic driving member for driving the adjusting block to displace in the axial direction of the hollow rotating shaft.

[0011] The utility model discloses a second aspect provides a kind of reaction kettle, including cleaning structure and kettle body, the inside of kettle body is hollow and is provided with opening in top, hollow rotating shaft extends to kettle body interior by opening, the middle part of hollow rotating shaft is provided with first stirring paddle.

[0012] Optionally, the bottom of the hollow rotating shaft is provided with a second stirring paddle.

[0013] Optionally, the shape of the cleaning brush is consistent with the shape of the inner side wall of the kettle body, and the shape of the second stirring paddle is consistent with the shape of the bottom wall of the kettle body.

[0014] Through the above technical solution, the cleaning structure can be folded when not cleaning, so it is not necessary to disassemble and protect it from corrosion by chemical substances or impact by solid materials in the reaction kettle when the reaction kettle is working. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is the first structure schematic view of cleaning structure;

[0016] Figure 2 is the second structure schematic view of cleaning structure;

[0017] Figure 3 is the partial structure schematic view of cleaning structure;

[0018] Figure 4 is the overhead structure schematic view of reaction kettle;

[0019] Figure 5 is the partial structure schematic view of reaction kettle;

[0020] Figure 6 is the shape schematic view of cleaning brush and second stirring paddle.

[0021] BRIEF DESCRIPTION OF DRAWINGS

[0022] 1, hollow rotating shaft;11, through slot;12, fixed part;2, adjusting block;31, first connecting rod;32, second connecting rod;4, cleaning brush;51, fixed pulley;52, rope;61, first stirring paddle;62, second stirring paddle DETAILED DESCRIPTION

[0023] In the utility model, under the condition of not making opposite statement, the orientation word such as "up, down, left, right" used is usually understood in conjunction with the orientation shown in the attached drawing and actual application, and "inner, outer" refers to the inner and outer of the outline of component.

[0024] This utility model discloses a cleaning structure, such as Figures 1-3 As shown, the cleaning structure includes a hollow rotating shaft 1, an adjusting block 2, a first connecting rod 31, a second connecting rod 32, and a cleaning brush 4. The side wall of the hollow rotating shaft 1 is provided with a through groove 11 and a fixing part 12. The adjusting block 2 is located inside the hollow rotating shaft 1 and is rotatably connected to the first end of the first connecting rod 31 through the through groove 11. The fixing part 12 is rotatably connected to the first end of the second connecting rod 32. The second ends of the first connecting rod 31 and the second ends of the second connecting rod 32 are both connected to the cleaning brush 4 located outside the hollow rotating shaft 1. The adjusting block 2 can move along the axial direction of the hollow rotating shaft 1 and drive the cleaning brush 4 to move radially along the hollow rotating shaft 1.

[0025] Specifically, the cleaning structure is a foldable structure, suitable for cleaning various containers with curved inner walls. The hollow rotating shaft 1 can continuously rotate during the cleaning process, driving the cleaning brush 4 to perform a synchronous circular motion.

[0026] like Figure 3 As shown, the through groove 11 is radially open and not closed along the hollow shaft 1, meaning the through groove 11 penetrates both the inner and outer walls of the hollow shaft 1. The depth of the through groove 11 (the depth direction of the through groove 11 is consistent with the radial direction of the hollow shaft 1) is equal to the thickness of the side wall of the hollow shaft 1. The through groove 11 is located in the upper or lower half of the hollow shaft 1, and the fixing part 12 is located in the other half where the through groove 11 is not opened. The fixing part 12 can be an ear plate. The upper or lower half referred to here is relative to the vertically placed hollow shaft 1. The length of the through groove 11 (the length direction of the through groove 11 is consistent with the axial direction of the hollow shaft 1) limits the range of movement of the first connecting rod 31 therein, and the two are directly proportional. The fixing part 12 can be welded to the outer wall of the hollow shaft 1. Correspondingly, a matching part that cooperates with the fixing part 12 is provided on the first end of the second connecting rod 32. The matching part can be hinged to the fixed part 12 to rotate relative to the fixed part 12. Of course, the two can also be connected by a snap-fit ​​or rotated in other common ways. Similarly, the adjusting block 2 and the first end of the first connecting rod 31 are rotated together in the above manner.

[0027] Based on this, the adjusting block 2, located inside the hollow rotating shaft 1 and capable of moving along the axial direction of the hollow rotating shaft 1, transmits motion to the cleaning brush 4 and the second connecting rod 32 via the first connecting rod 31, thereby causing the cleaning brush 4 to move radially along the hollow rotating shaft 1, realizing the folding and unfolding of the cleaning structure. During the unfolding process of the cleaning structure, the adjusting block 2 gradually moves closer to the fixed part 12, and the cleaning brush 4 gradually moves away from the hollow rotating shaft 1, and vice versa.

[0028] In use: first, place the cleaning structure in folded state at the working position; second, unfold the cleaning structure, specifically, operate the adjusting block 2 to move towards the fixed part 12, at this time the cleaning brush 4 moves towards the wall of the object to be cleaned synchronously until the two are in contact; third, continue to unfold the cleaning structure according to the requirement, at this time the cleaning brush 4 will be elastically deformed and closely fit the wall of the object to be cleaned, when the fitting degree reaches the preset, stop the unfolding process and position the adjusting block 2; fourth, clean the object to be cleaned, specifically, operate the hollow shaft 1 to make it drive the cleaning brush 4 to rotate and scrape the wall of the object to be cleaned; fifth, stop cleaning and fold the cleaning structure, specifically, stop the rotation of the hollow shaft 1, after the hollow shaft 1 is stationary, operate the adjusting block 2 to move away from the fixed part 12, the cleaning brush 4 moves away from the wall of the object to be cleaned (at the same time, it moves close to the hollow shaft 1) synchronously, until the cleaning structure returns to the folded state, and the adjusting block 2 is positioned again to stabilize the folded state of the cleaning structure.

[0029] Optionally, the second end of the first connecting rod 31 and the second end of the second connecting rod 32 are rotationally connected and located in the sliding groove of the cleaning brush 4.

[0030] Specifically, as shown in Figure 1 the sliding groove is used for the second end of the first connecting rod 31 and the second end of the second connecting rod 32 to move therein to support the folding or contraction movement of the cleaning structure. The rotationally connecting of the second end of the first connecting rod 31 and the second end of the second connecting rod 32 is conducive to simplifying the structure and avoiding various adverse consequences due to the complexity of the structure, such as increasing the difficulty of maintenance or increasing the risk of structural failure. For example, increasing the connecting point between the first connecting rod 31 and the second connecting rod 32, the increased connecting point may become a potential failure point and the parts of the cleaning structure depend on each other, and a failure of one part may cause a chain reaction of the entire structure.

[0031] Optionally, the middle part of the first connecting rod 31 and the middle part of the second connecting rod 32 are rotationally connected, the second end of the first connecting rod 31 is rotationally connected with one end of the cleaning brush 4, and the second end of the second connecting rod 32 is located in the sliding groove of the cleaning brush 4.

[0032] Specifically, as shown in Figure 2As shown, the sliding groove is used for the second end of the second connecting rod 32 to move therein to support the folding or shrinking movement of the cleaning structure. The middle part of the first connecting rod 31 and the middle part of the second connecting rod 32 are rotationally connected, and both are in the shape of "X" or cross as a whole. The second end of the first connecting rod 31 is rotationally connected with the cleaning brush 4 at the end position of the cleaning brush 4 close to the fixed part 12. The main purpose of connecting the second end of the first connecting rod 31 and the second end of the second connecting rod 32 with the cleaning brush 4 respectively is to make the cleaning brush 4 better stressed to avoid stress concentration, thereby reducing the risk of damage of the cleaning brush 4 due to excessive local stress. In addition, increasing the stress points of the cleaning brush 4 can also effectively avoid the phenomenon that part of the cleaning force is strong and part of the cleaning force is weak due to uneven deformation of the cleaning brush 4, thereby ensuring the cleaning effect.

[0033] Optionally, a plurality of groups of through grooves 11, fixed parts 12, first connecting rods 31, second connecting rods 32 and cleaning brushes 4 corresponding to each other are uniformly distributed along the circumference of the hollow rotating shaft 1. The simultaneous operation of multiple cleaning brushes can improve the cleaning efficiency.

[0034] Optionally, the cleaning structure further comprises a fixed pulley 51 and a rope 52, one end of the rope 52 passes through the fixed pulley 51 and is fixedly connected with the adjusting block 2.

[0035] Specifically, as shown in the figure, Figures 1-3 the hollow rotating shaft 1 is vertically arranged and open at the upper end, the through groove 11 is located in the upper half of the hollow rotating shaft 1, and the fixed part 12 is located in the lower half of the hollow rotating shaft 1 (the upper half refers to the part between the upper end surface and the middle cross section of the hollow rotating shaft 1; similarly, the lower half refers to the part between the lower end surface and the middle cross section of the hollow rotating shaft 1). The fixed pulley 51 can be welded at the opening of the hollow rotating shaft 1 to serve as a guide. The connecting end of the rope 52 can be fixedly connected with the adjusting block 2 through a lock buckle structure. The free end of the rope 52 will determine how the adjusting block 2 moves in the hollow rotating shaft 1 according to different stress conditions. When the pulling force on the free end of the rope 52 is greater than the gravity of the adjusting block 2, the adjusting block 2 moves upward; when the pulling force on the free end of the rope 52 is equal to the gravity of the adjusting block 2, the adjusting block 2 remains stationary; when the pulling force on the free end of the rope 52 is less than the gravity of the adjusting block 2, the adjusting block 2 moves downward. It is worth noting that when the adjusting block 2 moves upward, the cleaning brush 4 gradually approaches the hollow rotating shaft 1, and vice versa.

[0036] Optionally, a plurality of marks corresponding to different position states of the cleaning brush 4 are provided on the rope 52.

[0037] Specifically, the marks need to be used in conjunction with the fixed pulley 51, when the marks on the rope 52 are located directly above the fixed pulley 51, the cleaning brush 4 is at the position corresponding to the marks. The marks at least have two, one of which corresponds to the position of the cleaning brush 4 when the cleaning brush 4 is just in contact with the inner wall of the object to be cleaned but the cleaning brush 4 has not yet deformed elastically; the other mark corresponds to the position of the cleaning brush 4 when the cleaning brush 4 is completely in close contact with the inner wall of the object to be cleaned (the distance between the two marks is approximately equal to the maximum elastic deformation of the cleaning brush 4). If necessary, marks can be added between the above two marks to represent different gears, and different gears correspond to different deformation degrees of the cleaning brush 4, and the deformation degree of the cleaning brush 4 is positively correlated with the close degree of the cleaning brush 4. For example, a third mark is added, the third mark is located between the first two marks, and corresponds to the position of the cleaning brush 4 when the cleaning brush 4 is in close contact with the inner wall of the object to be cleaned and the cleaning brush 4 deforms elastically to a certain extent. At this time, the pressure of the cleaning brush 4 acting on the inner wall of the object to be cleaned is moderate, which can produce better cleaning effect and will not produce excessive friction force during cleaning to wear the inner wall of the object to be cleaned. Further, a mark corresponding to the position of the cleaning brush 4 closest to the hollow shaft 1 can also be added to monitor whether the cleaning structure is folded in place.

[0038] Optionally, it also comprises a telescopic driving member, which is used to drive the displacement of the adjusting block 2 in the axial direction of the hollow shaft 1.

[0039] Specifically, the telescopic driving member can be arranged above the adjusting block 2 or below the adjusting block 2, which can be selected according to the specific working condition. Further, the telescopic driving member is a servo electric cylinder, which can accurately control the stroke of the adjusting block 2, so as to accurately and flexibly adjust the close degree between the cleaning brush 4 and the inner wall of the object to be cleaned, and can make very subtle adjustment.

[0040] The utility model discloses another aspect in public reaction kettle, including cleaning structure and cauldron body, the inside hollow of cauldron body and top are provided with opening, the hollow shaft 1 passes through the opening and extends to the inside of cauldron body, and the middle part of hollow shaft 1 is provided with first stirring paddle 61.

[0041] Specifically, as shown in Figure 4 In order to avoid the interference between the stirring work of the first stirring paddle 61 and the cleaning work of the cleaning brush 4, the first stirring paddle 61 and the cleaning brush 4 are uniformly distributed along the circumference of the hollow shaft 1. The first stirring paddle 61 can be welded to the hollow shaft 1, and its main function is to stir the material in the reaction kettle.

[0042] Optionally, the bottom of the hollow shaft 1 is provided with a second stirring paddle 62.

[0043] Specifically, as shown in Figure 5As shown, the second stirring paddle 62 is arranged axially spaced apart from the first stirring paddle 61 along the hollow rotating shaft 1. The second stirring paddle 62 can also be welded to the hollow rotating shaft 1, and its main function is to stir the materials in the reactor and to assist in cleaning.

[0044] Optionally, the cleaning brush 4 is shaped in accordance with the shape of the inner side wall of the reactor body, and the second stirring paddle 62 is shaped in accordance with the shape of the bottom wall of the reactor body.

[0045] Specifically, as shown, Figure 6 the cleaning brush 4 is shaped in accordance with the shape of the inner side wall of the reactor body, and the second stirring paddle 62 is shaped in accordance with the shape of the bottom wall of the reactor body, which can minimize the cleaning dead angle and improve the cleaning efficiency and effect.

[0046] With the embodiment in Figure 1 as a representative, the entire working process of the reactor is described as follows:

[0047] Reaction process: the cleaning structure is in a folded state, and the first stirring paddle 61 and the second stirring paddle 62 make circular motion around the hollow rotating shaft 1 to stir the materials in the reactor.

[0048] Preparation process before cleaning: first, stop the rotation of the hollow rotating shaft 1, then open the reactor bottom valve until the residual materials in the reactor are emptied, close the reactor bottom valve, and inject a small amount of priming water (the priming water needs to cover the second stirring paddle 62).

[0049] Cleaning process: reduce the tension on the rope 52 to release the adjusting block 2 downward, the adjusting block 2 pushes the cleaning brush 4 to the right through the first connecting rod 31 and the second connecting rod 32, when the pre-selected mark on the rope 52 is just above the fixed pulley 51, increase the tension on the rope 52 to equal the weight of the adjusting block 2 to position the adjusting block 2, at this time, the cleaning brush 4 is appropriately close to the inner wall of the reactor (in the state of appropriate close, the cleaning brush 4 makes circular motion around the hollow rotating shaft 1, which can easily scrape off the residual materials on the inner wall of the reactor without damaging the coating of the inner wall of the reactor), then start the hollow rotating shaft 1, the residual materials on the inner wall of the reactor are scraped off by the cleaning brush 4 to the bottom of the reactor, the second stirring paddle 62 synchronously mixes the scraped residual materials with the priming water to avoid the residual materials sticking to the bottom of the reactor, finally, the mixed slurry is discharged through the reactor bottom valve, and one cleaning is completed.

[0050] Preparation process before reaction again: stop the rotation of the hollow rotating shaft 1, continue to increase the tension on the rope 52 to pull the adjusting block 2 upward to the maximum extent that the cleaning brush 4 is close to the hollow rotating shaft 1, reposition the adjusting block 2, and the cleaning structure returns to the folded state.

[0051] The preferred embodiments of the present application are described in detail above with reference to the drawings, but the present application is not limited thereto. Within the technical concept of the present application, various simple modifications can be made to the technical solution of the present application, including the combination of various specific technical features in any suitable manner. In order to avoid unnecessary repetition, the present application will not further describe various possible combination manners. However, these simple modifications and combinations should also be considered as disclosed content of the present application, and all belong to the protection scope of the present application.

Claims

1. A cleaning structure, characterized in that, The device includes a hollow rotating shaft (1), an adjusting block (2), a first connecting rod (31), a second connecting rod (32), and a cleaning brush (4). The hollow rotating shaft (1) has a through groove (11) and a fixing part (12) on its side wall. The adjusting block (2) is located inside the hollow rotating shaft (1) and is rotatably connected to the first end of the first connecting rod (31) through the through groove (11). The fixing part (12) is rotatably connected to the first end of the second connecting rod (32). The second ends of the first connecting rod (31) and the second ends of the second connecting rod (32) are both connected to the cleaning brush (4) located outside the hollow rotating shaft (1). The adjusting block (2) can move along the axial direction of the hollow rotating shaft (1) and drive the cleaning brush (4) to move radially along the hollow rotating shaft (1).

2. The cleaning structure according to claim 1, characterized in that, The second end of the first connecting rod (31) and the second end of the second connecting rod (32) are rotatably connected and located in the groove of the cleaning brush (4).

3. The cleaning structure according to claim 1, characterized in that, The middle part of the first connecting rod (31) is rotatably connected to the middle part of the second connecting rod (32), the second end of the first connecting rod (31) is rotatably connected to one end of the cleaning brush (4), and the second end of the second connecting rod (32) is located in the groove of the cleaning brush (4).

4. The cleaning structure according to claim 1, characterized in that, Multiple sets of corresponding through grooves (11), fixing parts (12), first connecting rods (31), second connecting rods (32) and cleaning brushes (4) are evenly distributed along the circumference of the hollow rotating shaft (1).

5. The cleaning structure according to any one of claims 1-4, characterized in that, It also includes a fixed pulley (51) and a rope (52), one end of which passes through the fixed pulley (51) and is fixedly connected to the adjusting block (2).

6. The cleaning structure according to claim 5, characterized in that, The rope (52) is equipped with multiple marks corresponding to different positions of the cleaning brush (4).

7. The cleaning structure according to any one of claims 1-4, characterized in that, It also includes a telescopic drive component, which is used to drive the adjusting block (2) to move axially on the hollow rotating shaft (1).

8. A reaction vessel, characterized in that, The vessel includes the cleaning structure and vessel body as described in any one of claims 1-7, wherein the vessel body is hollow inside and has an opening at the top, the hollow rotating shaft (1) extends into the interior of the vessel body through the opening, and a first stirring paddle (61) is provided in the middle of the hollow rotating shaft (1).

9. The reaction vessel according to claim 8, characterized in that, The bottom of the hollow rotating shaft (1) is provided with a second stirring paddle (62).

10. The reaction vessel according to claim 9, characterized in that, The shape of the cleaning brush (4) is consistent with the shape of the inner wall of the vessel, and the shape of the second stirring paddle (62) is consistent with the shape of the bottom wall of the vessel.

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