A stirring device for a moving residue treatment apparatus

Abstract

The application provides a stirring device of a moving residue treatment equipment, which comprises a stirring ring in a vertical stirring cavity, wherein the stirring ring comprises a ring-shaped wheel disc and a plurality of stirring pieces arranged on the wheel disc; the wheel disc is connected with a driving unit, so that the wheel disc rotates around a transverse axis of the wheel disc under the driving of the driving unit. The application solves the problems in the prior art, such as insufficient stirring and crushing of moving residue tissues, difficult operation in the processes of discharging and cleaning, and the like, and realizes sufficient stirring and crushing in the process of moving residue tissue treatment, thereby improving the stirring and crushing effect of the moving residue tissues and ensuring that the moving residue tissues are fully digested in the subsequent digestion process.

Description

Technical Field

[0001] This application relates to the technical field of waste treatment equipment, specifically to a stirring device in waste treatment equipment. Background Technology

[0002] Currently, after animal experiments are conducted in some hospitals, biological laboratories, or biological research institutes, the animal carcasses and residual tissues need to be rendered harmless. Generally, high-temperature chemical digestion is required to transform the animal remains into harmless substances before they can be discharged. A key component of animal remains treatment equipment is a stirring device, which breaks down the softened animal remains after high-temperature processing. Stirring during the high-temperature cooking and chemical digestion process ensures that the animal remains are thoroughly chemically digested.

[0003] To address the aforementioned issues, Chinese Patent Publication No. CN209379636U discloses a crushing and mixing device for processing livestock and poultry carcasses. This device crushes animal carcass material through the rotation of a spiral cutting blade assembly and then discharges it via a spiral conveyor mechanism. However, this mixing device uses linear shearing, resulting in dead zones in corners and areas far from the moving blade path, and poor mixing uniformity. Its W / M type blades are precision shearing structures, which are prone to wear and sensitive to materials, making them ineffective at crushing large pieces of material. The device does not sufficiently mix and crush animal remains, resulting in some remains not being completely chemically dissolved.

[0004] Chinese patent CN205170788U discloses a gelling machine that evaporates moisture from animal carcasses during high-temperature sterilization, transforming them into a gel-like material. Multiple stirring blades are fixed on a central shaft within the tank. The rotation of the central shaft stirs the heated animal carcass material, ensuring uniform heating. However, this rake-type stirring device, driven by a power unit, rotates a horizontal central shaft. The stirring rods fixed to the shaft rotate accordingly, causing the stirring blades at their ends to move in a circular motion within the mixing chamber. The stirring blades primarily shear and push the material in direct contact with them, pushing material in the central area of ​​the tank towards the tank wall or mixing localized areas. However, in large tanks, areas far from the stirring blades, especially near the central shaft and in the axial region between two stirring units, experience extremely slow or even stagnant material flow, creating large dead zones. This results in prolonged and uneven mixing. Furthermore, the radially distributed stirring rods and blades impede material flow, especially when thorough discharge or cleaning is required. These components leave significant material residue, making subsequent equipment discharge and cleaning processes difficult. Summary of the Invention

[0005] This utility model addresses the problems of insufficient mixing and crushing of dynamic residues in existing mixing devices, as well as difficulties in the discharge and cleaning processes. It provides a mixing device for dynamic residue treatment equipment, which includes a mixing ring located in a vertical mixing chamber. The mixing ring includes an annular wheel and several mixing components disposed on the wheel. The wheel is connected to a drive unit, causing the wheel to rotate around the transverse axis of the wheel under the drive of the drive unit.

[0006] The stirring device of the dynamic residue treatment equipment provided in this application can realize the functions of stirring and crushing during the processing of dynamic residue tissue, achieving the effect of sufficient stirring and crushing of dynamic residue tissue, and simple operation of discharge and cleaning. It solves the problems of insufficient stirring and crushing of dynamic residue tissue and difficult operation of discharge and cleaning process in the existing technology.

[0007] To enhance the mixing and crushing effect on the dynamic residue, an improvement to the mixing device of the aforementioned dynamic residue treatment equipment is made: the mixing element is arc-shaped and located at the outer edge of the circumference of the wheel, with its inner arc surface connected to the outer edge of the wheel. This improves equipment performance and efficiency while reducing equipment cost and energy consumption.

[0008] The annular impeller serves as the main frame, its annular structure ensuring continuous power transmission while providing a stable mounting surface for the agitator. The helical trajectory of the agitator covers the entire mixing chamber, and the impeller is driven to rotate by the drive unit, creating a composite motion of "rotation + axial propulsion." This motion mode generates radial, axial, and tangential three-dimensional flow of materials within the mixing chamber. The synergistic effect of these three aspects not only achieves efficient mixing and crushing of materials but also reduces fluid resistance, resulting in greater energy savings.

[0009] Furthermore, the angle between the stirring element and the wheel surface of the disc is greater than 0° and less than 90°.

[0010] Furthermore, several of the stirring components are arranged in two groups on both sides of the rotation axis of the wheel.

[0011] Furthermore, the stirring components on both sides of the rotation axis of the wheel are symmetrical about the center of the wheel.

[0012] To simplify the installation of the stirring ring and improve its stability during rotation, as an improvement to the stirring device of the aforementioned dynamic residue treatment equipment, the stirring ring of this application adopts a dual-shaft support transmission structure with a drive shaft and a passive shaft. The drive unit includes a drive shaft located on the transverse axis on both sides of the wheel and a passive shaft that provides axial support to the wheel.

[0013] Furthermore, the drive shaft drives the wheel to rotate via a key connection.

[0014] Furthermore, the passive shaft provides rotational support for the wheel and can rotate synchronously with it, ensuring that the annular wheel maintains axial and radial synchronization during rotation, avoiding swaying or vibration caused by unilateral force, and extending the service life of the stirring device. The drive shaft, passive shaft, and annular wheel can be pre-assembled into independent modules, requiring only simple installation onto the stirring container on-site, making operation convenient, maintenance easy, and cost-effective.

[0015] In order to solve the problem that excessively fast rotation of the drive shaft can easily cause equipment damage and reduce the service life of the equipment, as an improvement of the stirring device of the above-mentioned dynamic residue treatment equipment, the drive unit is also equipped with a speed reduction device.

[0016] Furthermore, a mechanical seal support structure for supporting the drive shaft is provided on one side of the stirring chamber, and the drive shaft is inserted into the mechanical seal structure. A support seat for supporting the passive shaft is provided on the other side of the stirring chamber.

[0017] The technical advantages of this application are as follows: 1. The stirring device of the dynamic residue treatment equipment of this application adopts an arc-shaped stirring component welded onto a ring-shaped wheel as the stirring ring, avoiding local accumulation or dead corners and achieving uniform stirring throughout the entire cavity. Furthermore, the stirring component generates alternating shearing and impact actions during rotation, causing the dynamic residue to be cut and broken in multiple directions and at multiple frequencies, resulting in a more uniform particle size distribution and further improving the crushing effect. This effectively enhances the performance and efficiency of the stirring device in the dynamic residue treatment equipment. In practical applications, after treatment by this device, the subsequent chemical digestion of the dynamic residue results in more complete material digestion.

[0018] 2. The stirring ring of this application adopts a dual-shaft support transmission structure of active shaft and passive shaft, which is simple to install, convenient to operate, easy to maintain, low in cost, and extends the service life of the stirring device.

[0019] 3. The waste treatment equipment of this application adopts a vertical structure, and the stirring device is installed vertically with the equipment. After digestion, the material is discharged smoothly and is not easy to leave residue. The cleaning process is simple to operate and has high cleaning efficiency. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the stirring device provided in this application; Figure 2 This is a schematic diagram of the stirring ring in the stirring device.

[0021] Explanation of reference numerals in the attached figures: 1. Stirring chamber; 2. Agitator ring; 21. Disc; 22. Agitator components; 3. Drive unit; 31. Drive shaft; 32. Driven shaft; 33. Reduction gear; 4. Mechanical seal support structure; 5. Support base. Detailed Implementation

[0022] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application. In the process of processing animal waste, it is necessary to break down the softened animal waste after high temperature and stir it during high temperature cooking and chemical digestion. However, the stirring devices of existing animal waste processing equipment do not stir and break down the animal waste sufficiently, resulting in some animal waste not being completely chemically digested. In addition, some stirring devices are only suitable for horizontal equipment, which makes the equipment discharge and cleaning process difficult.

[0023] To effectively solve the aforementioned technical problems, this application provides a stirring device for a waste material processing equipment, addressing the issues of insufficient stirring and crushing of waste materials in existing stirring devices, and difficulties in the discharge and cleaning processes. This stirring device is installed within a vertical stirring chamber 1, and uses a rotating stirring ring 2 to efficiently stir and crush the waste materials within the chamber, ensuring the complete dissolution of the waste materials. Simultaneously, the optimized structural design simplifies the discharge and cleaning operations. like Figure 1 As shown, the stirring device of the dynamic residue treatment equipment includes a stirring ring 2 located in a vertical stirring chamber 1. The stirring ring 2 includes an annular wheel 21 and a plurality of stirring components 22 disposed on the wheel 21. The wheel 21 is connected to a drive unit 3, so that the wheel 21 rotates around the transverse axis of the wheel 21 under the drive of the drive unit 3.

[0024] like Figures 1-2 As shown, the vertical stirring chamber 1 is a container for stirring and processing dynamic residues, and can be a vertically arranged closed or semi-closed container. The stirring ring 2 includes an annular disk 21 and several stirring elements 22 disposed on the disk 21.

[0025] The wheel 21 has a ring-shaped structure, and its position along its transverse axis (i.e., the secant line passing through the center of the wheel) is connected to the output shaft of the drive unit 3. This ring-shaped wheel 21 can be customized according to the size and shape of the mixing chamber 1 to ensure a good fit and to cover most of the processing area. The wheel 21 can be made of stainless steel to ensure corrosion resistance and mechanical strength.

[0026] The agitator 22 is symmetrically distributed around the outer periphery of the wheel 21 and has an arc-shaped structure. Its inner arc surface is fixedly connected to the outer circumference of the wheel 21. The arc-shaped design allows the agitator 22 to form a larger working area during rotation, and its curvature matches the rotation trajectory of the wheel 21, enhancing the encapsulation and shearing force on the material. Its surface has raised or serrated structures to enhance the shearing and crushing effect on moving debris. The agitator 22 can be made of stainless steel, and the connection method with the wheel 21 can be welding, bolting, or integral molding.

[0027] The included angle α between the stirring element 22 and the wheel surface of the wheel 21 satisfies: 0° < α < 90°. When α is too small (close to 0°), the stirring element 22 is almost parallel to the wheel surface of the wheel 21, resulting in the material only being subjected to horizontal thrust, weakening the vertical shearing effect, and insufficient crushing effect; when α is too large (close to 90°), the stirring element 22 is almost perpendicular to the wheel surface of the wheel 21, and the material is easily pressed directly against the inner wall of the cavity, causing local overload and reducing the stirring range; in this embodiment, α is preferably 30°-60° (e.g., 45°), at which time the stirring element 22 can apply sufficient vertical shearing force to the material, and can also expand the horizontal stirring range by tilting the angle, achieving a three-dimensional stirring effect.

[0028] The stirring components 22 are divided into two groups and respectively arranged on both sides of the rotation axis (i.e., the transverse axis of the wheel 21) of the wheel 21. The number of stirring components 22 in each group can be 2 to 6 (3 in each group in this embodiment), and the stirring components 22 in the same group are evenly distributed along the circumference of the wheel 21.

[0029] The agitators 22 located on both sides of the rotation axis of the wheel 21 are centrally symmetrical about the center of the wheel 21. The advantages of this arrangement are: the symmetrical distribution ensures that the wheel 21 is subjected to uniform force during rotation, reducing vibration and noise and extending the service life of the drive unit 3; the rotation trajectory of the agitators 22 on both sides covers different areas within the cavity 1, preventing material from accumulating or forming dead corners in specific locations, and ensuring uniform mixing throughout the cavity; the symmetrically arranged agitators 22 generate alternating shearing and impact forces during rotation, causing the dynamic residue to be crushed in multiple directions and at multiple frequencies, resulting in more uniform particle size and better crushing effect.

[0030] Continue to refer to Figure 1 The stirring ring of the stirring device of the dynamic waste treatment equipment adopts a dual-shaft support transmission structure of active shaft and passive shaft, which solves the vibration and off-center load problems that are easily caused by traditional single-shaft drive, and optimizes the layout of mechanical seal and support structure.

[0031] The drive shaft 31 is located on the transverse axis of one side of the wheel 21. One end of the stirring ring 2 is inserted into the drive shaft 31 and fixed to the wheel 21 via a key connection (such as a flat key or spline). It directly receives the torque from the drive unit 3 and drives the wheel 21 to rotate. The driven shaft 32 is located on the transverse axis of the other side of the wheel 21. A bushing is installed on the driven shaft 32, and the bushing can rotate relative to the driven shaft 32. The stirring ring 2 is installed on the bushing, and the stirring ring 2 is fixed relative to the bushing. The stirring ring 2 can rotate relative to the driven shaft 32 through the bushing. The drive shaft 31 and the driven shaft 32 support the stirring ring. The drive shaft 31 drives the stirring ring 2 to rotate synchronously with the driven shaft 32, while reducing frictional resistance. An end cap is installed on the shaft end of the driven shaft 32 and fixed with end cap bolts, which can axially position the stirring ring 2.

[0032] Continue to refer to Figure 1 In some preferred embodiments, the drive unit 3 further includes a motor and a reduction gear 33. A reduction motor bracket provides mounting and support for the reduction motor, and the bracket is welded to both the main tank and the equipment jacket. The reduction motor is mounted on the reduction bracket. The motor output shaft is connected to the input shaft of the reduction gear 33. One end of the drive shaft 31 is inserted into the reduction motor. Both the shaft and the reduction motor have keyways, and the drive shaft is connected via a key to transmit the rotational force of the reduction motor to the drive shaft.

[0033] During equipment operation, the automatic control program sends instructions to the frequency converter. The frequency converter controls the geared motor to rotate according to the frequency required by the program instructions. After being decelerated by the reducer, the drive shaft 31 rotates, which in turn drives the stirring ring 2 to rotate, thus crushing and mixing the moving residual materials. During the crushing and mixing process, the speed of the geared motor can be controlled by the automatic control program to ensure that the stirring ring 2 reaches the optimal speed.

[0034] Continue to refer to Figure 1 In some preferred embodiments, the mechanical seal support structure 4 is welded to the main tank of the equipment, providing support for the mechanical seal support structure 4. The mechanical seal support structure 4 is installed on the mechanical seal support seat, and the drive shaft 31 is inserted into the mechanical seal support structure 4. The mechanical seal support structure 4 includes components such as bearings and seals, providing support and sealing for the drive shaft. The driven shaft support seat 5 is welded to the equipment jacket and the main tank of the equipment, respectively, and the driven shaft 32 is fixed to the support seat 5 by bolts. The design of the support seat 5 simplifies the installation process of the driven shaft 32. It only requires inserting the driven shaft 32 into the bearing and fixing the support seat 5, without the need for additional alignment adjustments, thus shortening the installation time.

[0035] Finally, it should be noted that: The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A stirring device for a waste disposal equipment, characterized in that, include: The stirring ring (2) is located in the vertical stirring chamber (1). The stirring ring (2) includes an annular wheel (21) and a plurality of stirring components (22) disposed on the wheel (21). The wheel (21) is connected to the driving unit (3) so that the wheel (21) rotates around the transverse axis of the wheel (21) under the drive of the driving unit (3).

2. The stirring device of the waste treatment equipment according to claim 1, characterized in that, The stirring component (22) is arc-shaped and is installed on the outer edge of the circumference of the wheel (21), with its inner arc surface connected to the outer edge of the wheel (21).

3. The stirring device of the waste treatment equipment according to claim 2, characterized in that, The angle between the stirring element (22) and the wheel surface of the wheel (21) is greater than 0° and less than 90°.

4. The stirring device of the waste treatment equipment according to any one of claims 1 to 3, characterized in that, Several of the stirring components (22) are arranged in two groups on both sides of the rotation axis of the wheel (21).

5. The stirring device of the waste treatment equipment according to claim 4, characterized in that, The stirring element (22) located on both sides of the rotation axis of the wheel (21) is symmetrical about the center of the wheel (21).

6. The stirring device of the waste treatment equipment according to claim 1, characterized in that, The drive unit (3) includes an active shaft (31) located on the transverse axis on both sides of the wheel (21) and a passive shaft (32) that provides axial support to the wheel (21).

7. The stirring device of the waste treatment equipment according to claim 6, characterized in that, The drive shaft (31) drives the wheel (21) to rotate via a key connection.

8. The stirring device of the waste treatment equipment according to claim 6, characterized in that, The passive shaft (32) provides rotational support for the wheel (21) and can rotate synchronously with the wheel (21).

9. The stirring device of the waste treatment equipment according to claim 6, characterized in that, The drive unit (3) also includes a speed reduction device (33).

10. The stirring device of the waste treatment equipment according to claim 6, characterized in that, The stirring chamber (1) is provided with a mechanical seal support structure (4) for supporting the drive shaft (31) on one side, and a support seat (5) for supporting the passive shaft (32) on the other side.

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