Packing sealing structure and stirrer

Abstract

The utility model provides a packing sealing structure and a stirrer, and relates to the technical field of stirrer sealing. The packing sealing structure comprises a mounting bottom plate fixed at an opening of a tank body of the stirrer; the mounting bottom plate is provided with a first accommodating groove; the packing seal box is fixed on the mounting bottom plate; the packing sealing box is provided with a second containing groove. The packing sealing gland is detachably connected with the packing sealing box; the second containing groove penetrates through the bottom of the packing sealing box and then communicates with the first containing groove. The stirrer comprises a tank body; an opening is formed between the stirring shaft and the center of the top of the tank body; the bracket is arranged above the opening and is used for supporting the driving motor; the stirring shaft is in transmission connection with the driving motor through a coupler; the stirring shaft is connected with the bracket through a bearing; the packing sealing structure is provided. The packing sealing structure is additionally arranged at the opening, so that lime is prevented from overflowing, the bearing located on the upper portion is protected, and the maintenance and purchase cost of the bearing and related parts is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of mixer sealing, in particular to a packing sealing structure and a mixer. Background Art

[0002] The connection between the lime milk preparation tank mixer and the center of the tank body of the first phase public auxiliary 460 process (designated process) is an open design. During the lime adding process, lime is easy to overflow from the opening to the outside of the tank body, and the overflowed lime is scattered on the bearing above the opening, causing dust to enter the bearing, resulting in bearing damage, and then leading to unstable production of the mixer. At the same time, it also increases the maintenance manpower, material and financial resources (repair is required after damage), so it is very important to solve the problem of lime overflow during the lime adding process caused by the existing open design. Utility Model Content

[0003] In view of the above situation, the utility model provides a packing sealing structure and a mixer, aiming to solve the technical problem of lime overflow during the lime adding process caused by the open design of the existing mixer.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] In a first aspect, the utility model provides a packing sealing structure, comprising:

[0006] The installation bottom plate is fixed to the open portion of the tank body of the mixer; the upper side of the installation bottom plate is provided with a first receiving groove for receiving the sealing filler;

[0007] A stuffing seal box is fixed on the mounting base plate; the upper side of the stuffing seal box has a second receiving groove for receiving the sealing stuffing;

[0008] A packing gland, detachably connected to the packing gland, and used to seal the upper opening of the second receiving groove;

[0009] in:

[0010] The installation base plate, the stuffing box and the stuffing gland are penetrated by the mixing shaft of the mixer in a longitudinal rotation;

[0011] The second containing groove penetrates through the bottom of the stuffing seal box and is communicated with the first containing groove.

[0012] In some embodiments of the present invention, the mounting base plate is welded to the tank body.

[0013] In some embodiments of the present invention, the stuffing seal box is welded to the mounting base plate.

[0014] In some embodiments of the present invention, the packing gland is connected to the packing box by bolts.

[0015] In a second aspect, the utility model provides a mixer, which may mainly include:

[0016] Tank;

[0017] A stirring shaft is longitudinally rotated and penetrates the top center of the tank body, and an opening is provided between the stirring shaft and the top center of the tank body;

[0018] A bracket is arranged above the opening, and is used to support the driving motor; the stirring shaft is drivingly connected to the driving motor; and a bearing for connecting to the stirring shaft is arranged on the bracket;

[0019] Such as the packing seal structure mentioned above.

[0020] In some embodiments of the present invention, the lower portion of the tank is tapered.

[0021] In some embodiments of the present invention, the stirring shaft has a first blade and a second blade, and the first blade is located above the second blade.

[0022] In some embodiments of the present invention, the diameter of the first blade is 1650 mm.

[0023] In some embodiments of the present invention, the end of the second blade is inclined.

[0024] In some embodiments of the present invention, the first paddle and the second paddle are made of 304 stainless steel.

[0025] The embodiments of the present invention have at least the following advantages or beneficial effects:

[0026] Previously, the mixers used did not take sealing measures at the open part of the tank. By installing the bottom plate, stuffing box and stuffing gland, a stuffing seal structure is added at the open part to prevent lime from spilling out, thereby protecting the bearings located above and reducing the maintenance and procurement costs of bearings and related parts.

[0027] Other features and advantages of the present invention will be set forth in the following description, and in part will become apparent from the description, or may be understood by practicing the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0029] Figure 1 It is a structural schematic diagram of a mixer;

[0030] Figure 2 for Figure 1 A partial enlarged view of position A in the middle.

[0031] icon:

[0032] 1- Tank body,

[0033] 2- Bracket,

[0034] 3- stirring shaft, 31- bearing, 32- driving motor, 33- first paddle, 34- second paddle,

[0035] 4-packing sealing structure, 41-installation base plate, 411-first receiving groove, 42-packing sealing box, 421-second receiving groove, 43-packing sealing cover. DETAILED DESCRIPTION

[0036] In the following, only some exemplary embodiments are briefly described. As those skilled in the art can appreciate, the described embodiments can be modified in various different ways without departing from the spirit or scope of the embodiments of the present invention.

[0037] In the description of the embodiments of the present invention, it should be understood that the terms "center", "longitudinal", "up", "down", "top", "bottom", "inside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the embodiments of the present invention.

[0038] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0039] In the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral body; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0040] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0041] Example 1

[0042] See also Figure 1-2 This embodiment provides a mixer for preparing lime milk. The mixer includes a tank body 1, a bracket 2, a mixing shaft 3 and a packing sealing structure 4.

[0043] The stirring shaft 3 rotates longitudinally and passes through the top center of the tank body 1 , and there is an opening (not shown in the figure) between the stirring shaft 3 and the top center of the tank body 1 .

[0044] The bracket 2 is used to support the drive motor 32. The bracket 2 is arranged above the opening. The bracket 2 is provided with a bearing for connecting with the stirring shaft 3. That is, the stirring shaft 3 is connected to the bracket 2 through the bearing 31, and the stirring shaft 3 is connected to the drive motor 32 through a coupling and a reducer.

[0045] The packing seal structure 4 is used to seal the above-mentioned opening to prevent lime from overflowing. The packing seal structure 4 includes a mounting base plate 41, a packing seal box 42 and a packing seal gland 43.

[0046] The mounting bottom plate 41 is fixed to the open portion of the tank body 1 by welding or other methods; the upper side of the mounting bottom plate 41 has a first receiving groove 411 for receiving a sealing filler; the stirring shaft 3 rotates longitudinally and penetrates the mounting bottom plate 41 .

[0047] The stuffing seal box 42 is fixed to the mounting base plate 41 by welding or other means; the upper side of the stuffing seal box 42 has a second receiving groove 421 for receiving the sealing stuffing, and the second receiving groove 421 penetrates the bottom of the stuffing seal box 42 and is interconnected with the first receiving groove 411; the stirring shaft 3 rotates longitudinally and penetrates the stuffing seal box 42.

[0048] The packing gland 43 is connected to the packing box 42 in a detachable manner such as bolts, and is used to seal the upper opening of the second receiving groove 421 ; the stirring shaft 3 rotates longitudinally to penetrate the packing gland 43 .

[0049] In combination with the above content, this embodiment has at least the following beneficial effects:

[0050] The mixers used previously did not take sealing measures at the open part of the tank body 1. This embodiment adds a packing seal structure 4 at the open part by installing a bottom plate 41, a packing seal box 42 and a packing seal gland 43 to prevent lime from spilling out, thereby protecting the bearing 31 located above and reducing the maintenance and purchase costs of the bearing 31 and related components.

[0051] Example 2

[0052] This embodiment is a further improvement made on the basis of Embodiment 1.

[0053] See also Figure 1-2 In this embodiment, the lower part of the tank body 1 is conical, and the stirring shaft 3 has a first blade 33 and a second blade 34 , and the first blade 33 is located above the second blade 34 .

[0054] A plurality of first blades 33 are arranged on the stirring shaft 3 from top to bottom. The diameter of the first blades 33 is 1650 mm. The diameter of the original blades is 1200 mm. By increasing the diameter of the first blades 33, the stirring effect can be improved.

[0055] The first paddle 33 includes four blades that are arranged at equal intervals along the circumference of the stirring shaft 3 .

[0056] The second blade 34 is located at the lower end of the stirring shaft 3 and is arranged close to the bottom of the tank body 1. The second blade 34 is added to this embodiment (originally not included), which can improve the stirring effect.

[0057] The end of the second blade 34 is designed to be inclined so that the end of the second blade 34 can be as close to the lower inner wall of the tank body 1 as possible, so as to further improve the stirring effect.

[0058] The first blade 33 and the second blade 34 are made of 304 stainless steel.

[0059] In combination with the above content, this embodiment has at least the following beneficial effects:

[0060] The stirring effect can be effectively improved by increasing the size of the first blade 33, adding the second blade 34, and designing the shape of the end of the second blade 34. By improving the stirring effect, the lime and the solution can be fully and quickly mixed and uniformly mixed, so that the amount of lime that is not mixed and slurried per unit time is less, and it is not easy to cause the lime to be lifted and overflowed.

[0061] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. In the absence of conflicts, the embodiments of the present application and the features in the embodiments may be combined with each other at will. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A packing seal structure, located below a bearing, characterized in that: include: The mounting bottom plate is fixed to the open portion of the tank body of the mixer; the upper side of the mounting bottom plate has a first receiving groove for receiving a sealing filler; A stuffing seal box is fixed on the mounting base plate; the upper side of the stuffing seal box has a second receiving groove for receiving a sealing stuffing; A packing gland, detachably connected to the packing gland, and used to seal the upper opening of the second containing groove; in: The installation base plate, the stuffing seal box and the stuffing seal gland are longitudinally rotated and penetrated by the stirring shaft of the mixer; The second containing groove passes through the bottom of the stuffing seal box and is communicated with the first containing groove.

2. The packing seal structure according to claim 1, characterized in that: The mounting base plate is welded to the tank body.

3. The packing seal structure according to claim 1, characterized in that: The stuffing seal box is welded to the mounting base plate.

4. The packing seal structure according to claim 1, characterized in that: The packing gland is connected to the packing box via bolts.

5. A mixer, characterized in that: include: Tank; A stirring shaft is longitudinally rotated and penetrates the top center of the tank body, and an opening is provided between the stirring shaft and the top center of the tank body; A bracket is arranged above the opening, and is used to support the driving motor; the stirring shaft is drivingly connected to the driving motor; and a bearing for connecting to the stirring shaft is arranged on the bracket; A packing seal structure as claimed in any one of claims 1 to 4.

6. The mixer according to claim 5, characterized in that The lower part of the tank body is conical.

7. The mixer according to claim 6, characterized in that The stirring shaft is provided with a first blade and a second blade, and the first blade is located above the second blade.

8. The mixer according to claim 7, characterized in that The diameter of the first blade is 1650 mm.

9. The mixer according to claim 7, characterized in that: The end of the second blade is inclined.

10. The mixer according to claim 7, characterized in that The first paddle blade and the second paddle blade are made of 304 stainless steel.

Images