An unpowered radial mixing device for slurry mixing

Abstract

The utility model discloses a kind of unpowered radial mixing devices for slurry mixing, including shell, bearing shaft, vane, bearing seat, the shell is cylindrical pipeline, the bearing seat is two, respectively install at the pipe orifice of both ends of shell, the bearing shaft both ends are rotatably connected by bearing and bearing seat respectively, the vane is several, vane is helically welded on the outer wall of bearing shaft, slurry drives vane rotation when flowing through vane to make vane agitate slurry.The utility model can be directly connected into conveying pipeline, without additionally equipping power system, small floor space, in coal mine filling mining field, the problem of solidification in the process of slurry conveying, limited space in pit difficult to arrange mixing station in pit can be well solved, provide device technical support for underground batching, with mining and filling, simultaneously, the structure design is exquisite, low in cost, easy to install, with higher practical application popularization value.

Description

Technical Field

[0001] This utility model belongs to the field of radial mixing technology, specifically, it relates to a non-powered radial mixing device for slurry mixing. Background Technology

[0002] The research on static mixers has significant engineering application value in the current field of pipe conveying, especially in conveying slurries with sedimentation properties. In coal mining, during backfilling operations, fast-setting filling materials are often used to shorten production cycles and improve mining efficiency. However, with increasing mining depth, the filling materials prepared on the surface are prone to premature solidification during underground conveying, leading to serious pipe blockage accidents. Therefore, the addition of accelerators must be delayed, and slurry preparation must be carried out underground. Thus, developing a mixing device with a simple structure, convenient operation, and direct installation in underground conveying systems is of great significance for avoiding pipe blockage accidents and ensuring the efficient and stable progress of mining operations. Utility Model Content

[0003] In deep coal mine backfilling, traditional surface batching methods cause slurry to solidify and block pipes during underground transport. Due to limited underground space, it is difficult to set up a mixing station underground. To solve this technical problem, this utility model proposes a low-cost, simple and ingenious radial mixing device that is easy to install, requires no power system, and can be directly connected to the conveying pipeline. This device achieves efficient mixing of slurry in a limited space, providing a practical and feasible technical solution for solving pipe blockage and underground mixing.

[0004] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows: A non-powered radial mixing device for slurry mixing includes a housing, a bearing shaft, blades, and bearing seats. The housing is a cylindrical pipe. There are two bearing seats, which are respectively installed at the two ends of the housing. The two ends of the bearing shaft are rotatably connected to the bearing seats through bearings. There are several blades, which are spirally welded to the outer wall of the bearing shaft. When the slurry flows through the blades, the blades are driven to rotate so that the blades agitate the slurry.

[0005] Furthermore, the housing is formed by bolting together an upper housing and a lower housing, both of which have semi-circular grooves.

[0006] Furthermore, the bearing housing includes an upper bracket, a lower bracket, and a bearing housing retaining sleeve. Both the upper bracket and the lower bracket are composed of a semi-circular inner ring and two support rods. The bearing housing retaining sleeve is annular. The housing is provided with a slot. One end of the support rod is fixedly connected to the semi-circular inner ring. The outer side of the other end of the support rod is detachably connected to the bearing housing retaining sleeve, and the inner side of the other end is engaged with the slot.

[0007] Furthermore, an impeller shaft is fitted onto the outer wall of the bearing shaft, and blades are welded to the outer wall of the impeller shaft. The bearing housing and the impeller shaft are connected by a key to achieve synchronous rotation.

[0008] Furthermore, there are four blades, and the blade twist angle is 180°.

[0009] Furthermore, the semi-circular inner ring is provided with a groove for installing the bearing, and bearing caps are installed on both sides of the bearing, with the bearing caps snapping into the grooves of the semi-circular inner ring.

[0010] Furthermore, both the upper and lower supports are symmetrical structures, and the two support rods are symmetrically installed on the semi-circular inner ring, both extending outward from the center.

[0011] Furthermore, the included angle formed by the two struts of the upper support is Φ1, and the included angle formed by the two struts of the lower support is Φ2, where Φ1≠Φ2.

[0012] Furthermore, Φ1:Φ2 = 1.2~1.8:1.

[0013] Furthermore, sealing rings are provided at both ends of the device.

[0014] By adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art.

[0015] This utility model can be directly connected to the conveying pipeline without the need for a separate power system. It occupies a small space and can effectively solve the problems of solidification during slurry transportation and the difficulty in setting up a mixing station underground due to limited underground space in the field of coal mine backfilling mining. It provides device technical support for underground batching and backfilling as mining progresses.

[0016] In addition, this invention can also be used in the chemical and water treatment industries for the rapid and uniform mixing of chemical agents such as coagulants, catalysts, initiators, disinfectants, and flocculants.

[0017] This utility model has an ingenious structural design, low cost, and convenient installation, and has high practical application and promotion value.

[0018] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0019] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments and descriptions of the present invention are used to explain the present invention, but do not constitute an undue limitation of the present invention. Obviously, the drawings described below are merely some embodiments; those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings: Figure 1 This is a schematic diagram of the structure of this utility model. Figure 1 ; Figure 2 This is a schematic diagram of the structure of this utility model. Figure 2 ; Figure 3 This is a schematic diagram of the installation process of the upper and lower shells and the upper and lower brackets of this utility model; Figure 4 This is a cross-sectional schematic diagram of the impeller shaft of this utility model; Figure 5 yes Figure 4 Detailed diagram of section A.

[0020] In the picture: 11-Bearing shaft; 12-Impeller shaft; 13-Blade; 21-Upper shell; 22-Lower shell; 31-Upper bracket; 32-Lower bracket; 33-Bearing seat retaining sleeve; 4-Bearing; 5-Bearing cap; 6-Sealing ring.

[0021] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0023] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Example 1

[0025] like Figures 1 to 5 As shown in this embodiment, a non-powered radial mixing device for slurry mixing includes a housing, a bearing shaft 11, an impeller shaft 12, blades 13, and a bearing housing. The housing is a cylindrical pipe, composed of an upper housing 21 and a lower housing 22. Both the upper housing 21 and the lower housing 22 are semi-circular grooves. The upper housing 21 and the lower housing 22 are designed with paired bolt seats, which are connected by bolts to form a pipe during installation. The housing serves as the mixing chamber for the slurry. Both the upper housing 21 and the lower housing 22 are provided with bolt seats for connecting to the pipes at both ends. When connecting the pipes, a sealing ring 6 can be installed at the connection to ensure the sealing of the connection.

[0026] Two bearing housings are installed at the two ends of the housing. The bearing housings are used to install bearing 4 and the diverting slurry. As shown in the attached diagram, the bearing housing includes an upper support 31, a lower support 32, and a bearing housing retaining sleeve 33. Both the upper support 31 and the lower support 32 consist of a semi-circular inner ring and two support rods. The bearing housing retaining sleeve 33 is annular. Both the upper and lower housings have slots. One end of each support rod is fixedly connected to the semi-circular inner ring, while the outer side of the other end of the support rod is detachably connected to the bearing housing retaining sleeve 33, and the inner side of the other end engages with the slot. The support rods support the central inner ring, and the bearing 4 retaining sleeve reinforces the stability of the upper and lower supports.

[0027] The bearing shaft 11 is rotatably connected to the bearing housing at both ends via bearings 4. Specifically, the bearing shaft 11 is interference-fitted with the inner ring of the bearing 4, and the outer ring of the bearing 4 is interference-fitted with the semi-circular inner ring. The semi-circular inner ring has an arc-shaped groove for mounting the bearing 4. Bearing covers 5 are mounted on both sides of the bearing 4, and the bearing covers 5 are snapped into the grooves of the semi-circular inner ring. The bearing covers 5 isolate the bearing 4 from the slurry, preventing direct contact between the slurry and the bearing 4, thus preventing interference and damage.

[0028] An impeller shaft 12 is fitted on the outer wall of the bearing shaft 11, and blades 13 are welded to the outer wall of the impeller shaft 12. The impeller shaft 12 can be understood as a bushing with blades 13. During installation, it is fitted on the bearing shaft 11. Axial and circumferential positioning is achieved through the cooperation of key and slot. At the same time, the stability of the cooperation between the two is enhanced by using diamond wedges to ensure that the two rotate synchronously.

[0029] Several blades 13 can be provided. The blades 13 are spirally welded to the outer wall of the bearing shaft 11. When the slurry flows through the blades 13, the blades 13 are driven to rotate, thus agitating the slurry. In this example, there are four blades 13, with a twist angle of 180°, forming a concave surface in the direction of slurry flow (see attached diagram). Figure 2 As shown, when the slurry impacts the surface of the blade 13, it will convert its axial kinetic energy into circumferential energy, causing the blade 13 to rotate with its axis.

[0030] Preferably, both the upper support 31 and the lower support 32 are symmetrical structures. As shown in the attached drawings, the two struts are symmetrically installed on the inner semicircle, and both extend outward from the center. The included angle formed by the two struts of the upper support 31 is Φ1, and the included angle formed by the two struts of the lower support 32 is Φ2, where Φ1≠Φ2. Preferably, Φ1:Φ2=1.2~1.8:1. In this example, Φ1 is 150° and Φ2 is 100°.

[0031] When using this device, the two or more materials to be mixed should be combined together before entering the device and then conveyed into it together. Multiple devices can be connected to the conveying pipeline according to the corresponding engineering requirements. Preferably, the blades 13 of two adjacent devices should be installed with opposite rotation directions. For example, the blades 13 of the first device should rotate left-handed, and the blades 13 of the second device should rotate right-handed. This will cause the slurry to tumble clockwise and then counter-clockwise, which is more conducive to rapid mixing.

[0032] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A non-powered radial mixing device for slurry mixing, characterized in that, The device includes a housing, a bearing shaft (11), blades (13), and bearing seats. The housing is a cylindrical pipe. There are two bearing seats, which are installed at the two ends of the housing. The two ends of the bearing shaft (11) are rotatably connected to the bearing seats through bearings (4). There are several blades (13). The blades (13) are spirally welded to the outer wall of the bearing shaft (11). When the slurry flows through the blades (13), the blades (13) are driven to rotate so that the blades (13) agitate the slurry.

2. The non-powered radial mixing device for slurry mixing according to claim 1, characterized in that, The housing is formed by bolting together an upper housing (21) and a lower housing (22), both of which are semi-circular grooves.

3. The non-powered radial mixing device for slurry mixing according to claim 1, characterized in that, The bearing housing includes an upper bracket (31), a lower bracket (32), and a bearing housing retaining sleeve (33). The upper bracket (31) and the lower bracket (32) are both composed of a semi-circular inner ring and two support rods. The bearing housing retaining sleeve (33) is annular. The housing is provided with a slot. One end of the support rod is fixedly connected to the semi-circular inner ring. The outer side of the other end of the support rod is detachably connected to the bearing housing retaining sleeve (33), and the inner side of the other end is engaged with the slot.

4. The non-powered radial mixing device for slurry mixing according to claim 1, characterized in that, An impeller shaft (12) is fitted on the outer wall of the bearing shaft (11), and blades (13) are welded to the outer wall of the impeller shaft (12). The bearing seat and the impeller shaft (12) are connected by a key to achieve synchronous rotation.

5. A non-powered radial mixing device for slurry mixing according to claim 1, characterized in that, There are four blades (13), and the twist angle of the blades (13) is 180°.

6. A non-powered radial mixing device for slurry mixing according to claim 3, characterized in that, The semi-circular inner ring is provided with a groove for installing the bearing (4), and bearing covers (5) are installed on both sides of the bearing (4). The bearing covers (5) are snapped into the groove of the semi-circular inner ring.

7. A non-powered radial mixing device for slurry mixing according to claim 3, characterized in that, The upper support (31) and lower support (32) are both symmetrical structures. The two support rods are symmetrically installed on the inner semicircle and extend outward from the center of the circle.

8. A non-powered radial mixing device for slurry mixing according to claim 7, characterized in that, The angle formed by the two struts of the upper support (31) is Φ1, and the angle formed by the two struts of the lower support (32) is Φ2, where Φ1≠Φ2.

9. A non-powered radial mixing device for slurry mixing according to claim 8, characterized in that, Φ1:Φ2 = 1.2~1.8:

1.

10. A non-powered radial mixing device for slurry mixing according to claim 1, characterized in that, The device is equipped with sealing rings (6) at both ends.

Images