CN219792409U

CN219792409U - Quick replacement structure of vertical mixer mixing tool

Info

Publication number: CN219792409U
Application number: CN202223491082.3U
Authority: CN
Inventors: 卢兴福; 戴波; 刘克俭
Original assignee: Zhongye Changtian International Engineering Co Ltd
Current assignee: Zhongye Changtian International Engineering Co Ltd
Priority date: 2022-12-27
Filing date: 2022-12-27
Publication date: 2023-10-03
Anticipated expiration: 2032-12-27

Abstract

Quick reloading structure of vertical mixer mixing tool, its characterized in that: the structure comprises at least 2 pull rods (1), a connecting block (2), a supporting plate (3) and a supporting pad; the pull rod (1) is a full-threaded rod; the upper end of the pull rod (1) passes through the connecting block (2) and is connected with the supporting plate (3) through the connecting block (2); the lower part of the pull rod (1) is sleeved with a supporting pad. According to the utility model, the quick-change structure is used for changing the mixing tool in the mixer, the fixed disc in the mixer is jacked up by the lifting pull rod instead of the wedge-shaped drill rod, wherein the supporting pad plays a bearing role, and a required working space is reserved for changing the mixing tool, so that the changing time is greatly shortened, the labor intensity of workers is also reduced, and the operation rate of the mixer is improved.

Description

Quick replacement structure of vertical mixer mixing tool

Technical Field

The utility model relates to replacement of mixing tools of a mixer, in particular to a quick replacement structure of mixing tools of a vertical mixer, and belongs to the field of raw material preparation in bulk raw material industries such as metallurgy, mining and the like.

Background

The vertical intensive mixer is widely applied to the bulk raw material treatment industries such as metallurgy, mining and the like due to the strong mixing capability. In the working process, the vertical type powerful mixer forcedly perturbs the materials by means of the stirring paddles rotating at high speed, so that the materials are forced to generate intense shearing and convection motions, and the efficient and uniform mixing of the raw materials is realized.

Because the raw material particles are in long-term contact with the mixing tool on the stirring paddle and are in a relative motion state, the abrasion of the mixing tool is serious, and the abrasion of the end part of the mixing tool is fastest. The failure mode of the mixing tool of the vertical intensive mixer is loss of length, i.e. the end of the mixing tool is continuously eroded, becoming shorter and shorter until the mixing capability is lost. In order to ensure the mixing effect, the mixing tool is severely worn after being used for a period of time, and the mixing tool needs to be replaced at the moment. The existing mode adopts a mode of periodically detecting manual replacement, namely, workers stop the machine periodically to detect, when the mixed tool is found to be invalid, the fixed disc at the position above the mixed tool to be disassembled is jacked up upwards by the wedge-shaped drill bit, so that a working space required for disassembly is reserved at the position of the mixed tool to be disassembled, and the problem of high labor intensity and low replacement efficiency exists. Meanwhile, because the on-site working condition of the vertical type powerful mixer is bad, the adjacent fixed discs are easy to generate bonding phenomenon due to rust and corrosion, so that acting force between the fixed discs is increased, the labor intensity of disassembly work is further increased, the replacement time is prolonged, and the operation rate of equipment is seriously affected.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model provides a quick replacement structure for a mixing tool of a vertical mixer. The structure comprises at least 2 pull rods, connecting blocks, supporting plates and supporting pads, wherein the pull rods penetrate through the connecting blocks and are connected with the supporting plates through the connecting blocks, and the supporting pads are sleeved on the pull rods. According to the utility model, the replacement structure is used for replacing a mixing tool in the mixer, the fixed disc in the mixer is jacked up by the lifting pull rod instead of a wedge-shaped drill rod, wherein the supporting pad plays a bearing role, and a required working space is reserved for replacing the mixing tool, so that the replacement time is greatly shortened, the labor intensity of workers is also reduced, and the operation rate of the mixer is improved.

According to a first embodiment of the present utility model, a quick change structure for a mixing tool of a vertical mixer is provided.

A quick-changing structure of a mixing tool of a vertical mixer comprises at least 2 pull rods, connecting blocks, a supporting plate and a supporting pad. The pull rod is a full-threaded rod. The upper end of the pull rod passes through the connecting block and is connected with the supporting plate through the connecting block. The lower part of the pull rod is sleeved with a supporting pad.

In the present utility model, the support pad is an adjustable support pad. The adjustable support pad adjusts position by moving up and down along the tie rod.

In the present utility model, the structure further includes a back nut. The support nut is sleeved on the pull rod and is positioned below the adjustable support pad. Each pull rod is provided with an adjustable supporting pad and a supporting nut in a matching way.

In the present utility model, the structure further includes an adjustment nut. The adjusting nut is sleeved on the pull rod above the connecting block, and the adjusting nut is connected with the pull rod through threads.

In the utility model, the supporting plate is formed by connecting two semicircular supporting pieces, namely, the supporting plate is circular.

Preferably, the diameter of the support plate is greater than the diameter of the internal disk of the vertical mixer and less than or equal to the diameter of the stirring paddles in the vertical mixer.

In the utility model, the two semicircular supporting pieces are connected through a connecting block.

Preferably, the two semicircular supporting pieces are connected with the connecting block through fixing bolts and fixing nuts respectively.

In the present utility model, the plurality of tie rods are uniformly distributed along the circumferential direction of the support plate. Preferably, the number of the pull rods is 2-6, preferably 2-4.

According to a second embodiment of the present utility model, a quick change structure for a mixing tool of a vertical mixer is provided.

In the present utility model, the support pad is a fixed support pad. Each pull rod is provided with a plurality of fixed support pads at intervals, preferably 2-10 fixed support pads, more preferably 3-8 fixed support pads.

In the utility model, the distance between two adjacent fixed support pads is larger than the height of 3 discs in the vertical mixer.

In the present utility model, the interval between every two adjacent fixed type support pads is equal.

In the utility model, the distance between two adjacent fixed support pads is increased from top to bottom along the height direction of the pull rod.

The utility model provides a quick replacement structure for a mixing tool of a vertical mixer, which aims to solve the problems of high labor intensity and low replacement efficiency of the mixing tool of the mixer in the prior art. The structure comprises at least 2 pull rods, connecting blocks, supporting plates and supporting pads, wherein the pull rods penetrate through the connecting blocks and are connected with the supporting plates through the connecting blocks, and the supporting pads are sleeved on the pull rods. The pull rod is a full-threaded rod. According to the utility model, the replacement structure is used for replacing a mixing tool in the mixer, the fixed disc in the mixer is jacked up by the lifting pull rod instead of a wedge-shaped drill rod, wherein the supporting pad plays a bearing role, and a required working space is reserved for replacing the mixing tool, so that the replacement time is greatly shortened, the labor intensity of workers is also reduced, and the operation rate of the mixer is improved.

In the present utility model, the support pad is an adjustable support pad. The position of the adjustable support pad is adjusted by moving up and down along the pull rod, so that the adjustable support pad can be changed according to the specific position of the mixing tool to adjust the position. And a supporting nut is arranged on the pull rod and below the adjustable supporting pad, and the supporting nut is mainly used for improving the bearing capacity of the adjustable supporting pad. Each pull rod is provided with an adjustable supporting pad and a supporting nut in a matching way.

In the utility model, the supporting plate is formed by connecting two semicircular supporting pieces, namely, the supporting plate is circular. Wherein, two semicircular support pieces are connected with the connecting block through fixing bolts and fixing nuts respectively. The plurality of pull rods are uniformly distributed along the circumferential direction of the support plate. According to the utility model, the pull rod above the connecting block is also sleeved with the adjusting nut, and the adjusting nut is connected with the pull rod through threads. The setting of adjusting nut can make many pull rods upwards promote in step, treats to promote highly and is greater than the height of waiting to change mixing tool, can be steady quick will wait to change mixing tool and take out to install new mixing tool. According to the utility model, the fixed discs in the mixer are jacked up by lifting the pull rods, so that a required working space is reserved for replacing the mixing tools, and therefore, the number of the pull rods is at least 2 uniformly and symmetrically distributed, so that the stable lifting process is ensured, the jacking force of the fixed discs is relatively balanced, the problem that the adjacent fixed discs are difficult to detach and replace due to adhesion caused by rust and corrosion in the prior art is effectively solved, the labor intensity of workers is greatly reduced, the replacing time is shortened, and the operation rate of equipment is improved.

In order to facilitate the mounting of the mounting structure on the stirring paddle, the support plate according to the utility model therefore has to have a diameter which is larger than the diameter of the inner disc of the vertical mixer. Meanwhile, in order to ensure that the replacement structure can effectively jack up the fixed disc and leave a required working space, the diameter of the supporting plate is smaller than or equal to the diameter of the stirring paddle in the vertical mixer.

In the specific replacement process, the protective cover in the stirring paddle in fig. 4 is firstly detached, meanwhile, the compression bolts are loosened, and then the quick replacement tool is fixed on the support flange on the stirring paddle (as shown in fig. 5). At this time, the adjusting nut is adjusted to enable the left and right pull rods to be lifted upwards synchronously, and the lifting height is larger than the height of the mixing tool, so that a working space required by the disassembling tool is reserved at the position of the mixing tool to be replaced (as shown in fig. 6). At this time, the auxiliary supporting pad is placed in the working space while the adjustable supporting pad and the supporting nut are loosened downward, so that the mixing tool to be replaced is taken out of the mounting groove of the fixed disk (as shown in fig. 7), and a new mixing tool is mounted. At the moment, the auxiliary supporting pad is taken out, the fixed disc above the mixing tool to be replaced is put down, the compression bolt is compressed, and the protective cover is arranged, so that the replacement and installation of the blade are realized.

In addition, the quick-change tooling knot can also adopt a structure shown in fig. 8, and at the moment, the pull rod adopts a part of thread structure, and the support pad adopts a fixed form, namely the fixed support pad. Generally, the mixing tools are arranged in a 60-degree staggered manner, so that the fixed disks in the mixer can be grouped into groups of three, and the mutual distance between adjacent fixed support pads should be greater than the total height L of the three fixed disks. In addition, if the support pad is replaced from top to bottom, in order to reduce the starting force of the pull rod, the distance between the adjacent fixed support pads is increased from top to bottom in sequence, namely, L3> L2> L1> L, and the specific replacement method is the same as that of the adjustable support pad scheme.

The utility model also provides a quick replacement method according to the requirement, namely blade replacement can be carried out according to the failure condition of the mixing tool. During operation of the vertical intensive mixer, the power of the stirring paddles is related to the length (outer diameter) of the mixing tool, as follows:

P＝Knρμ _S d ² b

wherein: k is a test coefficient; n is the rotation speed of the stirring paddle; ρ is the material density; mu (mu) _s Is the friction coefficient in the material; d is the outer diameter of the blade; b is the blade height.

From the above equation, the longer the mixing tool, the greater the power of the stirring paddle, so the length of the mixing tool can be determined according to the power (motor current) change of the stirring paddle, thereby judging when to replace the mixing tool. The controller can be arranged on the stirring paddle, and the current magnitude and the current change trend of the stirring paddle can be obtained in real time. If the current development trend is steadily reduced, the current value is lower than the current value corresponding to the failure of the set mixing tool, stopping the machine for detection and quickly replacing the mixing tool to be replaced; if the current value fluctuates and the fluctuation value is smaller than the current value corresponding to the failure of the mixing tool, observing the current trend for a period of time, and if the current is stable and the stable current value is larger than the current value corresponding to the failure of the mixing tool, continuing to operate the mixer.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the utility model, the quick-change structure is used for changing the mixing tool in the mixer, the fixed disc in the mixer is jacked up by the lifting pull rod instead of the wedge-shaped drill rod, wherein the supporting pad plays a bearing role, and a required working space is reserved for changing the mixing tool, so that the changing time is greatly shortened, the labor intensity of workers is also reduced, and the operation rate of the mixer is improved.

2. The utility model also provides a quick replacement method according to the requirement, namely blade replacement can be carried out according to the failure condition of the mixing tool, so that periodic detection replacement is converted into quick replacement according to the requirement, and the operation rate of equipment is greatly improved.

3. According to the utility model, the fixed disc at the position of the mixing tool to be replaced can be stably and rapidly jacked up through the cooperation of the pull rod, the support pad and the support nut, the problem that the adjacent fixed discs are difficult to detach and replace due to the adhesion phenomenon caused by rust and corrosion in the prior art is effectively solved, the labor intensity is reduced, the labor is saved, and the operation process is safer and more reliable.

Drawings

FIG. 1 is a schematic view of a quick change structure for a mixing tool of a vertical mixer according to the present utility model;

FIG. 2 is a schematic illustration of the connection of a semi-circular support member to a connection block in accordance with the present utility model;

FIG. 3 is a schematic view of a vertical mixer of the prior art;

FIG. 4 is a schematic view of a structure of a stirring paddle of a vertical mixer in the prior art;

FIG. 5 is a schematic view of the mounting of the refill of the present utility model on a paddle;

FIG. 6 is a schematic illustration of the change-over structure of the present utility model leaving a working space behind after lifting the tie rod;

FIG. 7 is a schematic illustration of a process for replacing a mixing tool with a change-over structure of the present utility model;

FIG. 8 is a schematic view of another quick change structure for a mixing tool of a vertical mixer according to the present utility model;

fig. 9 is a front view of another quick change structure of the present utility model.

Reference numerals:

1: a pull rod; 2: a connecting block; 3: a support plate; 301: a semicircular support; 401: an adjustable support pad; 402: a fixed support pad; 5: a support nut; 6: an adjusting nut; 7: a fixing bolt; 8: a fixing nut;

a: a vertical mixer; a1: stirring paddles; a101: a disc; a102: a mixing tool; a103: a protective cover; a104: a compression bolt; a105: a support flange; a2: a working space; a3: and an auxiliary supporting pad.

Detailed Description

The following examples illustrate the technical aspects of the utility model, and the scope of the utility model claimed includes but is not limited to the following examples.

A quick replacement structure of a mixing tool of a vertical mixer comprises at least 2 pull rods 1, a connecting block 2, a supporting plate 3 and a supporting pad. The pull rod 1 is a full-threaded rod. The upper end of the pull rod 1 passes through the connecting block 2 and is connected with the supporting plate 3 through the connecting block 2. The lower part of the pull rod 1 is sleeved with a supporting pad.

In the present utility model, the support pad is an adjustable support pad 401. The adjustable support pad 401 adjusts the position by moving up and down along the pull rod 1.

In the present utility model, the structure further includes a support nut 5. The supporting nut 5 is sleeved on the pull rod 1 and is positioned below the adjustable supporting pad 401. Each pull rod 1 is provided with an adjustable supporting pad 401 and a supporting nut 5.

In the present utility model, the structure further includes an adjustment nut 6. The adjusting nut 6 is sleeved on the pull rod 1 above the connecting block 2, and the adjusting nut 6 is connected with the pull rod 1 through threads.

In the present utility model, the support plate 3 is formed by connecting two semicircular supports 301, i.e., the support plate 3 has a circular shape.

Preferably, the diameter of the supporting plate 3 is larger than the diameter of the inner disk A101 of the vertical mixer A and smaller than or equal to the diameter of the stirring paddle A1 in the vertical mixer A.

In the present utility model, the two semicircular supports 301 are connected by the connection block 2.

Preferably, the two semicircular supports 301 are respectively connected with the connecting block 2 through the fixing bolts 7 and the fixing nuts 8.

In the present utility model, the plurality of tie rods 1 are uniformly distributed along the circumferential direction of the support plate 3. Preferably, the number of the pull rods 1 is 2 to 6, preferably 2 to 4.

In the present utility model, the support pad is a stationary support pad 402. A plurality of fixed support pads 402, preferably 2 to 10 fixed support pads 402, more preferably 3 to 8 fixed support pads 402, are provided at intervals on each tie bar 1.

In the present utility model, the spacing between adjacent two fixed support pads 402 is greater than the height of 3 discs a101 within the vertical mixer a.

In the present utility model, the spacing between every two adjacent fixed support pads 402 is equal.

In the present utility model, the interval between two adjacent fixed support pads 402 increases sequentially from top to bottom along the height direction of the tie bar 1.

Example 1

As shown in fig. 1, the quick-change structure of the mixing tool of the vertical mixer comprises 2 pull rods 1, a connecting block 2, a supporting plate 3 and a supporting pad. The pull rod 1 is a full-threaded rod. The upper end of the pull rod 1 passes through the connecting block 2 and is connected with the supporting plate 3 through the connecting block 2. The lower part of the pull rod 1 is sleeved with a supporting pad.

Example 2

Example 1 is repeated except that the support pad is an adjustable support pad 401. The adjustable support pad 401 adjusts the position by moving up and down along the pull rod 1.

Example 3

Example 2 is repeated except that the structure further comprises a back nut 5. The supporting nut 5 is sleeved on the pull rod 1 and is positioned below the adjustable supporting pad 401. Each pull rod 1 is provided with an adjustable supporting pad 401 and a supporting nut 5.

Example 4

Example 3 is repeated except that the structure further includes an adjustment nut 6. The adjusting nut 6 is sleeved on the pull rod 1 above the connecting block 2, and the adjusting nut 6 is connected with the pull rod 1 through threads.

Example 5

As shown in fig. 2, embodiment 4 is repeated except that the support plate 3 is formed by connecting two semicircular supports 301, i.e., the support plate 3 is circular.

Example 6

As shown in fig. 5, example 5 was repeated except that the diameter of the support plate 3 was larger than the diameter of the inner disk a101 of the vertical mixer a and smaller than the diameter of the stirring paddle A1 in the vertical mixer a.

Example 7

Example 6 is repeated except that the two semicircular supports 301 are connected to the connection block 2 by the fixing bolts 7 and the fixing nuts 8, respectively.

Example 8

Example 7 was repeated except that the 2 tie rods 1 were symmetrically distributed along the circumferential direction of the support plate 3.

Example 9

Example 8 was repeated except that in the present example, the number of the tie rods was 3, and the 3 tie rods 1 were uniformly distributed along the circumferential direction of the support plate 3.

Example 10

As shown in fig. 8, a quick-change structure of a mixing tool of a vertical mixer comprises 2 pull rods 1, a connecting block 2, a supporting plate 3 and a supporting pad. The pull rod 1 is a full-threaded rod. The upper end of the pull rod 1 passes through the connecting block 2 and is connected with the supporting plate 3 through the connecting block 2. The lower part of the pull rod 1 is sleeved with a supporting pad. The support pad is a fixed support pad 402. 4 fixed support pads 402 are arranged on each pull rod 1 at intervals.

In this embodiment, the structure further comprises an adjustment nut 6. The adjusting nut 6 is sleeved on the pull rod 1 above the connecting block 2, and the adjusting nut 6 is connected with the pull rod 1 through threads.

The support plate 3 is formed by connecting two semicircular support pieces 301, that is, the support plate 3 is circular. The diameter of the supporting plate 3 is larger than the diameter of the inner disk A101 of the vertical mixer A and smaller than the diameter of the stirring paddle A1 in the vertical mixer A.

The two semicircular supporting pieces 301 are respectively connected with the connecting block 2 through the fixing bolts 7 and the fixing nuts 8.

The 2 pull rods 1 are symmetrically distributed along the circumferential direction of the supporting plate 3.

Example 11

Embodiment 10 is repeated except that 6 fixed support pads 402 are provided on each tie rod 1 at intervals.

Example 12

Example 10 is repeated except that the spacing between adjacent two fixed support pads 402 is greater than the height L of 3 discs a101 in the vertical mixer a.

Example 13

Example 12 is repeated except that the spacing between every adjacent two of the stationary support pads 402 is equal.

Example 14

As shown in fig. 9, embodiment 12 is repeated, except that the distance between two adjacent fixed support pads 402 increases sequentially from top to bottom along the height direction of the tie bar 1, i.e., L1 < L2 < L3.

Claims

1. Quick reloading structure of vertical mixer mixing tool, its characterized in that: the structure comprises at least 2 pull rods (1), a connecting block (2), a supporting plate (3) and a supporting pad; the pull rod (1) is a full-threaded rod; the upper end of the pull rod (1) passes through the connecting block (2) and is connected with the supporting plate (3) through the connecting block (2); the lower part of the pull rod (1) is sleeved with a supporting pad.

2. The quick change structure of claim 1, wherein: the support pad is an adjustable support pad (401); the adjustable support pad (401) adjusts the position by moving up and down along the pull rod (1).

3. The quick change structure of claim 2, wherein: the structure further comprises a support nut (5); the supporting nut (5) is sleeved on the pull rod (1) and is positioned below the adjustable supporting pad (401); each pull rod (1) is provided with an adjustable supporting pad (401) and a supporting nut (5).

4. The quick change structure of claim 1, wherein: the support pad is a fixed support pad (402); a plurality of fixed support pads (402) are arranged on each pull rod (1) at intervals.

5. The quick change structure of claim 4, wherein: 2-10 fixed support pads (402) are arranged on each pull rod (1) at intervals.

6. The quick change structure of claim 5, wherein: 3-8 fixed support pads (402) are arranged on each pull rod (1) at intervals.

7. The quick change structure of claim 4, wherein: the spacing between two adjacent fixed support pads (402) is greater than the height of 3 disks in a vertical mixer.

8. The quick change structure of claim 5, wherein: the spacing between every two adjacent fixed support pads (402) is equal; or (b)

Along the height direction of the pull rod (1), the distance between two adjacent fixed support pads (402) sequentially increases from top to bottom.

9. The quick change structure according to any one of claims 1-8, wherein: the structure also comprises an adjusting nut (6); the adjusting nut (6) is sleeved on the pull rod (1) above the connecting block (2), and the adjusting nut (6) is connected with the pull rod (1) through threads.

10. The quick change structure according to any one of claims 1-8, wherein: the supporting plate (3) is formed by connecting two semicircular supporting pieces (301), namely, the supporting plate (3) is circular.

11. The quick change structure of claim 9, wherein: the supporting plate (3) is formed by connecting two semicircular supporting pieces (301), namely, the supporting plate (3) is circular.

12. The quick change structure of claim 10, wherein: the diameter of the supporting plate (3) is larger than the diameter of the inner disc of the vertical mixer and smaller than or equal to the diameter of the stirring paddle in the vertical mixer.

13. The quick change structure of claim 12, wherein: the diameter of the supporting plate (3) is larger than the diameter of the inner disc of the vertical mixer and smaller than or equal to the diameter of the stirring paddle in the vertical mixer.

14. The quick change structure of claim 10, wherein: the two semicircular supporting pieces (301) are connected through the connecting block (2).

15. The quick change structure according to any one of claims 11-13, wherein: the two semicircular supporting pieces (301) are connected through the connecting block (2).

16. The quick change structure of claim 14, wherein: the two semicircular supporting pieces (301) are connected with the connecting block (2) through the fixing bolts (7) and the fixing nuts (8) respectively.

17. The quick change structure of claim 15, wherein: the two semicircular supporting pieces (301) are connected with the connecting block (2) through the fixing bolts (7) and the fixing nuts (8) respectively.

18. The quick change structure of claim 10, wherein: the plurality of pull rods (1) are uniformly distributed along the circumferential direction of the supporting plate (3).

19. The quick change structure according to any one of claims 11-14, 16-17, wherein: the plurality of pull rods (1) are uniformly distributed along the circumferential direction of the supporting plate (3).

20. The quick change structure of claim 18, wherein: the number of the pull rods (1) is 2-6.

21. The quick change structure of claim 19, wherein: the number of the pull rods (1) is 2-6.

22. The quick change structure according to claim 20 or 21, wherein: the number of the pull rods (1) is 2-4.