A mixer for refractory materials with replaceable wear-resistant mixing elements

Abstract

This utility model relates to the field of material mixing technology and discloses a refractory material mixer with a replaceable wear-resistant stirring component. It includes a support platform, a mixing tank fixedly installed on the upper part of the support platform, a placement component housed inside the mixing tank, a top plate fixedly sealed to the upper part of the placement component, a stirring drive mechanism disposed on the top plate, a stirring rod transmittedly connected to the stirring drive mechanism, a lifting and holding mechanism for locking the detachable stirring component, and a discharge sealing mechanism disposed at the bottom of the support platform and the mixing tank. A first discharge chute is formed through the lower end of the support platform, and a second discharge chute is formed through the lower end of the mixing tank. The inner walls of the first and second discharge chutes are flush. This utility model has the advantages of compact structure, convenient assembly and disassembly, reliable sealing, and easy maintenance.

Description

Technical Field

[0001] This utility model relates to the field of material mixing technology, specifically to a refractory material mixer with replaceable wear-resistant stirring components. Background Technology

[0002] Refractory materials are core basic materials in high-temperature industrial fields and are widely used in metallurgy, building materials, chemical and other industries. In their production process, the mixing process is a key step to ensure uniform material proportions and stable finished product performance. Refractory raw materials are mostly high-hardness, highly abrasive particles and powders. During the mixing process, the mixing components will continuously rub and impact with the raw materials, placing stringent requirements on the wear resistance and structural stability of the mixing equipment.

[0003] Currently, most conventional refractory material mixers on the market adopt an integrated mixing structure. While this can meet basic mixing requirements, it is difficult to adapt to the highly abrasive working conditions of refractory raw materials. Long-term operation can easily lead to rapid component wear and decreased mixing efficiency. Existing refractory material mixers often use fixed connections between the mixing components and the mixing shaft, such as welding or bolting. When core vulnerable components like the mixing blades and mixing blocks wear out, they cannot be quickly and individually disassembled and replaced. Often, the entire mixing shaft or even the entire machine needs to be disassembled, resulting in time-consuming and labor-intensive repairs, significantly reducing production continuity and increasing equipment maintenance costs. Furthermore, the mixer's discharge port often uses a simple sealing structure, which has poor sealing performance and insufficient opening and closing stability, easily leading to material leakage, clumping, and blockages. This affects mixing accuracy and discharge efficiency, making it difficult to meet the needs of continuous refractory material production and requiring improvement. Utility Model Content

[0004] The purpose of this invention is to provide a refractory material mixer with replaceable wear-resistant mixing components, which has the advantages of compact structure, convenient disassembly and assembly, reliable sealing and easy maintenance, and solves the problems in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A refractory material mixer with a replaceable wear-resistant mixing component includes a support platform, a mixing tank fixedly installed on the upper part of the support platform, a placement component housed inside the mixing tank, a top plate fixedly sealed on the upper part of the placement component, a stirring drive mechanism disposed on the top plate, a stirring rod transmittedly connected to the stirring drive mechanism, a lifting and holding mechanism for locking the detachable mixing component, and a discharge sealing mechanism disposed at the bottom of the support platform and the mixing tank.

[0007] A first discharge chute is provided through the lower end of the support platform, and a second discharge chute is provided through the lower end of the mixing tank. The inner walls of the first discharge chute and the inner walls of the second discharge chute are flush.

[0008] A lower support ring is fixedly connected to the upper part of the outer peripheral wall of the stirring rod. A first limiting groove is opened at the upper end of the lower support ring. An upper support mechanism that cooperates with the lower support ring is sleeved on the outer peripheral wall of the stirring rod. A lower support mechanism is fixedly installed on the lower part of the outer peripheral wall of the stirring rod. A detachable stirring assembly is installed together between the upper support mechanism and the lower support mechanism.

[0009] The lifting and holding mechanism is fixedly installed at the lower end of the top plate. The output end of the lifting and holding mechanism is matched with the upper end of the upper support mechanism for axial locking of the detachable mixing component.

[0010] An inclined platform is provided below the support platform;

[0011] After releasing the locking state of the lifting and holding mechanism, slide the upper support mechanism upward along the stirring rod axis to release the limit on the detachable stirring component, so as to realize the quick disassembly and replacement of the detachable stirring component.

[0012] Preferably, the discharge sealing mechanism includes a cylinder fixedly connected to the side wall of the support platform, a lifting block fixedly connected to the upper end of the cylinder output shaft, and a sealing column fixedly connected to the upper end of the lifting block; the outer peripheral wall of the sealing column simultaneously slides against the inner wall of the second discharge trough and the inner wall of the first discharge trough, for sealing and opening control of the discharge port of the mixing tank.

[0013] It is worth noting that by simultaneously sliding and fitting the outer peripheral wall of the sealing column against the inner walls of both the second and first discharge troughs, dual guidance and sealing of the discharge port of the mixing tank are achieved, avoiding the problem of jamming caused by material compression. Furthermore, the extended fitting surface significantly improves the sealing effect, effectively preventing leakage of fine refractory materials during the mixing process. In addition, the lifting block driven by the cylinder moves the sealing column in a linear motion, which can quickly respond to the opening or closing command, thereby precisely controlling the discharge flow rate.

[0014] Preferably, the placement assembly includes an inner tank housed inside the bottom surface of the mixing tank, a conical cylinder fixed to the upper end of the inner tank, and a straight cylinder fixed to the upper end of the conical cylinder. The lower end of the inner tank is open, and the second discharge chute is connected to the inner cavity of the inner tank.

[0015] It is worth noting that by setting up a placement assembly consisting of an inner tank, a conical cylinder, and a straight cylinder, an independent material holding space separate from the inner wall of the mixing tank is constructed. The inner tank is a component that can be replaced or cleaned independently. When it is necessary to change the type of material or perform deep cleaning, the entire placement assembly can be directly removed for processing, reducing the difficulty of maintenance.

[0016] Preferably, the stirring drive mechanism includes a first bearing seat fixedly connected to the upper end of the top plate, a motor fixedly installed on the upper end of the top plate, a second bearing seat fixedly installed on the support platform, and a rotating rod that is drivenly connected to the output end of the motor; the upper part of the outer peripheral wall of the rotating rod is rotatably engaged with the first bearing seat, the lower end of the output shaft of the motor is fixedly connected to the upper end of the rotating rod, the lower part of the outer peripheral wall of the rotating rod is rotatably engaged with the second bearing seat, and the stirring rod and the rotating rod are coaxially fixedly connected.

[0017] It is worth noting that by setting a first bearing seat at the upper end of the top plate and a second bearing seat on the support platform, support is provided at both the upper and lower ends of the rotating rod, forming a stable transmission structure with two fulcrums. This enhances the operational stability of the stirring rod when rotating at high speed or handling high-viscosity refractory materials, and extends its service life. The motor output shaft is directly connected to the rotating rod, reducing intermediate transmission links, improving transmission efficiency, and reducing energy loss.

[0018] Preferably, the upper support mechanism includes a movable cylinder slidably sleeved on the outer peripheral wall of the stirring rod, a first limiting ring fixedly connected to the lower end of the movable cylinder, and at least one upper fixing block fixedly connected to the side wall of the movable cylinder; the first limiting ring is adapted to engage with the first limiting groove at the upper end of the lower support ring, the lower end of the upper fixing block is provided with a first cross groove for engaging the detachable stirring assembly, and the upper end of the movable cylinder is provided with a second limiting groove.

[0019] It is worth noting that the upper support mechanism adopts a sliding sleeve structure, which, together with the snap-fit ​​design of the first limiting ring and the first limiting groove on the lower support ring, achieves precise alignment and axial locking with the fixed component below. When the lifting and holding mechanism presses down, the first limiting ring snaps into the first limiting groove, ensuring the positioning accuracy of the entire upper support mechanism in the circumferential direction. This allows the first cross groove at the lower end of the upper fixed block to be precisely aligned with the detachable stirring component below. The first cross groove, as the upper snap-fit ​​point of the stirring component, can prevent the stirring component from slipping when rotating, and also allows it to be quickly inserted or pulled out in the axial direction.

[0020] Preferably, the lower support mechanism includes a fixed cylinder fixedly sleeved on the lower part of the outer peripheral wall of the stirring rod, and at least one lower fixing block fixedly connected to the side wall of the fixed cylinder; the upper end of the lower fixing block is provided with a second cross groove for engaging the detachable stirring assembly, and the second cross groove is arranged vertically corresponding to the first cross groove.

[0021] It is worth noting that the second cross groove on the lower support mechanism corresponds precisely to the first cross groove on the upper support mechanism, together forming a rigid "double-point locking" snap-fit ​​system. This cross groove design ensures that the mixing component is in a vertical state during operation, with uniform force, and can effectively withstand the huge shear force and bending moment generated during the mixing process.

[0022] Preferably, the detachable mixing assembly includes a cross block and a mixing element fixedly connected to the side wall of the cross block; the upper end of the cross block is engaged with the inner wall of the first cross groove, and the lower end of the cross block is engaged with the inner wall of the second cross groove.

[0023] It is worth noting that the cross block, as a standard interface element, is adapted to the cross grooves of the upper and lower support mechanisms at its upper and lower ends, respectively, realizing a quick mechanical connection and efficient torque transmission with the stirring rod. During installation, simply align the cross block with the groove and push it in to complete the radial and circumferential positioning without the need for any tools. The stirring component is fixed to the side wall of the cross block. Different shapes or functions of stirring components can be replaced according to different refractory material formulations or mixing processes, thereby improving the process adaptability of the equipment.

[0024] Preferably, the lifting and holding mechanism includes at least two guide rods fixedly connected to the lower end of the top plate, an electric cylinder fixedly installed at the lower end of the top plate, a pressure ring slidably sleeved on the outer peripheral wall of the stirring rod, and linear bearings corresponding to the guide rods. The linear bearings are fixedly connected to the upper end of the pressure ring through a through-type connection, and the inner wall of the linear bearings slides against the outer peripheral wall of the corresponding guide rod. The lower end of the output shaft of the electric cylinder is fixedly connected to the upper end of the pressure ring. The lower end of the pressure ring is limited and abuts against the upper end of the movable cylinder. A second limiting ring is fixedly connected to the lower end of the pressure ring, and the second limiting ring is adapted to the second limiting groove.

[0025] It is worth noting that the lifting and holding mechanism is driven by an electric cylinder and, combined with the precision guidance of the guide rod and linear bearing, provides stable and controllable vertical movement for the pressure ring. The second limiting ring at the lower end of the pressure ring and the second limiting groove at the upper end of the movable cylinder are fitted together, which realizes circumferential locking of the upper support mechanism in the pressed state, preventing it from rotating and displacing under severe vibration. At the same time, the first limiting ring of the upper support mechanism is firmly pressed into the lower support ring by axial pressure, thereby securing the entire detachable stirring assembly in the vertical direction and eliminating working gaps.

[0026] Preferably, the stirring component includes a first connecting block fixedly connected to the side wall of the cross block, an upper heating ring fixedly connected to the end of the first connecting block away from the cross block, multiple connecting columns fixedly connected vertically to the lower end of the upper heating ring, a lower heating block fixedly connected to the lower end of the multiple connecting columns, and a second connecting block fixedly connected to the upper end of the lower heating block; the side wall of the second connecting block is fixedly connected to the side wall of the cross block, and electric heating blocks are fixedly installed in the cavities of both the upper heating ring and the lower heating block.

[0027] It is worth noting that this stirring component integrates a heating function. By setting electric heating blocks within the upper and lower heating rings and heating blocks, uniform heat treatment of the refractory material can be achieved during the stirring process. The upper heating ring and lower heating block form a three-dimensional frame structure through connecting columns, which expands the contact area with the material, allowing heat to be transferred to the interior of the material from different heights and angles. This significantly improves heat exchange efficiency and the uniformity of temperature distribution. The double connection between the first and second connecting blocks ensures the stability of the connection between this heated stirring component and the cross block, enabling it to withstand the combined effects of thermal and mechanical stresses.

[0028] Preferably, the stirring components are at least two stirring blocks fixedly connected to the side wall of the cross block.

[0029] It is worth noting that the multi-stirring block design can generate strong turbulence when rotating, which can effectively shear, mix and tumble the material, making it suitable for the mixing needs of most conventional refractory materials.

[0030] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0031] 1. This utility model features a cylinder-driven sealing column with its outer peripheral wall slidingly against the inner walls of both the first and second discharge troughs. When discharge is required, the cylinder drives the lifting block to move the sealing column downward, opening the bottom of the mixing tank and allowing the material to flow smoothly. When sealing is required, the cylinder drives the sealing column upward to reset, achieving a reliable seal through the extended double guide surface. This prevents material leakage and blockage, significantly improving the accuracy and reliability of discharge control.

[0032] 2. This utility model sets the detachable stirring assembly as a combination of a cross block and a stirring element, with its upper and lower ends respectively engaged in the first cross groove of the upper support mechanism and the second cross groove of the lower support mechanism. When the stirring assembly needs to be replaced, simply control the electric cylinder of the lifting and holding mechanism to retract, so that the pressure ring releases the pressure on the movable cylinder. Then slide the movable cylinder upward along the stirring rod to separate the first cross groove from the cross block, thereby removing the worn stirring assembly from the side. This achieves tool-free quick disassembly and assembly of the stirring assembly, solving the problems of "time-consuming and labor-intensive maintenance and poor production continuity" in the prior art, and greatly reducing equipment operation and maintenance costs.

[0033] 3. This utility model achieves automatic locking and releasing of the mixing component through the cooperation of the lifting and pressing mechanism and the upper support mechanism. When the pressure ring is pressed down under the drive of the electric cylinder, the second limiting ring at its lower end is engaged in the second limiting groove of the movable cylinder. At the same time, the movable cylinder is pushed down, so that the first limiting ring is engaged in the first limiting groove of the lower support ring. This securely locks the detachable mixing component in both the axial and circumferential directions, ensuring that the mixing component will not loosen or shift when the mixer is running at high speed or processing highly abrasive materials. This ensures the stability of the mixing trajectory and the uniformity of mixing, effectively extending the service life of the equipment. Attached Figure Description

[0034] Figure 1 The diagram shown is a three-dimensional structural schematic of the present invention.

[0035] Figure 2 The diagram shown is a cross-sectional view of the placement component and mixing tank of this utility model.

[0036] Figure 3 The diagram shown is a three-dimensional structural schematic of the discharge sealing mechanism of this utility model.

[0037] Figure 4 The diagram shown is a three-dimensional cross-sectional view of the sealing column of this utility model.

[0038] Figure 5 The diagram shown is a cross-sectional view of the lifting and holding mechanism and the upper support mechanism of this utility model.

[0039] Figure 6 The diagram shown is a three-dimensional structural schematic of the upper support mechanism and the lower support mechanism of this utility model.

[0040] Figure 7 The diagram shown is a three-dimensional structural schematic of the first embodiment of the detachable stirring assembly of this utility model.

[0041] Figure 8 The diagram shown is a three-dimensional structural schematic of a second embodiment of the detachable stirring assembly of this utility model.

[0042] Figure 9 The diagram shown is a three-dimensional structural schematic of the electric heating block of this utility model.

[0043] Reference numerals: 1. Support platform; 101. Cylinder; 102. Lifting block; 103. Sealing column; 104. First discharge chute; 105. Second discharge chute; 2. Mixing tank; 3. Inner tank; 4. Conical cylinder; 5. Straight cylinder; 6. Top plate; 7. First bearing seat; 8. Motor; 9. Inclined platform; 10. Second bearing seat; 11. Rotating rod; 12. Stirring rod; 13. Lower support ring; 14. First limiting groove; 15. Movable cylinder; 16. First limiting... 17. Upper fixing block; 18. First cross groove; 19. Second limiting groove; 20. Pressure ring; 21. Second limiting ring; 22. Guide rod; 23. Linear bearing; 24. Fixing cylinder; 25. Lower fixing block; 26. Second cross groove; 27. Cross block; 28. Stirring block; 29. ​​First connecting block; 30. Upper heating ring; 31. Second connecting block; 32. Lower heating block; 33. Connecting column; 34. Electric heating block; 201. Electric cylinder. Detailed Implementation

[0044] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0045] To address the problems of difficult disassembly and assembly of the mixing components, low maintenance efficiency, poor sealing of the discharge port, and unstable opening and closing control in existing technologies, the following technical solution is proposed. Please refer to [link / reference]. Figures 1-9 ;

[0046] A refractory material mixer with a replaceable wear-resistant mixing component includes a support platform 1, a mixing tank 2 fixedly installed on the upper end of the support platform 1, a placement component housed inside the mixing tank 2, a top plate 6 fixedly sealed on the upper end of the placement component, a stirring drive mechanism disposed on the top plate 6, a stirring rod 12 transmittedly connected to the stirring drive mechanism, a lifting and holding mechanism for locking the detachable mixing component, and a discharge sealing mechanism disposed at the bottom of the support platform 1 and the mixing tank 2.

[0047] The lower end of the support platform 1 is provided with a first discharge trough 104, and the lower end of the mixing tank 2 is provided with a second discharge trough 105. The inner wall of the first discharge trough 104 and the inner wall of the second discharge trough 105 are flush.

[0048] A lower support ring 13 is fixedly connected to the upper part of the outer peripheral wall of the stirring rod 12. A first limiting groove 14 is opened at the upper end of the lower support ring 13. An upper support mechanism that cooperates with the lower support ring 13 is sleeved on the outer peripheral wall of the stirring rod 12. A lower support mechanism is fixedly installed at the lower part of the outer peripheral wall of the stirring rod 12. A detachable stirring assembly is installed together between the upper support mechanism and the lower support mechanism.

[0049] The lifting and holding mechanism is fixedly installed at the lower end of the top plate 6. The output end of the lifting and holding mechanism is matched with the upper end of the upper support mechanism for axial locking of the detachable mixing component.

[0050] An inclined platform 9 is provided below the support platform 1;

[0051] After releasing the locking state of the lifting and holding mechanism, slide the upper support mechanism upward along the stirring rod 12 axis to release the limit on the detachable stirring component, so as to realize the quick disassembly and replacement of the detachable stirring component.

[0052] In this embodiment, specifically, the discharge sealing mechanism includes a cylinder 101 fixedly connected to the side wall of the support platform 1, a lifting block 102 fixedly connected to the upper end of the output shaft of the cylinder 101, and a sealing column 103 fixedly connected to the upper end of the lifting block 102; the outer peripheral wall of the sealing column 103 simultaneously slides against the inner wall of the second discharge trough 105 and the inner wall of the first discharge trough 104, for sealing and opening control of the discharge port of the mixing tank 2.

[0053] In this embodiment, specifically, the placement component includes an inner tank 3 housed inside the bottom surface of the mixing tank 2, a conical cylinder 4 fixed to the upper end of the inner tank 3, and a straight cylinder 5 fixed to the upper end of the conical cylinder 4. The lower end of the inner tank 3 is open, and the second discharge trough 105 is connected to the inner cavity of the inner tank 3.

[0054] In this embodiment, the stirring drive mechanism specifically includes a first bearing seat 7 fixedly connected to the upper end of the top plate 6, a motor 8 fixedly installed on the upper end of the top plate 6, a second bearing seat 10 fixedly installed on the support platform 1, and a rotating rod 11 that is drivenly connected to the output end of the motor 8; the upper part of the outer peripheral wall of the rotating rod 11 is rotatably engaged with the first bearing seat 7, the lower end of the output shaft of the motor 8 is fixedly connected to the upper end of the rotating rod 11, the lower part of the outer peripheral wall of the rotating rod 11 is rotatably engaged with the second bearing seat 10, and the stirring rod 12 is coaxially fixedly connected to the rotating rod 11.

[0055] In this embodiment, specifically, the upper support mechanism includes a movable cylinder 15 slidably sleeved on the outer peripheral wall of the stirring rod 12, a first limiting ring 16 fixedly connected to the lower end of the movable cylinder 15, and at least one upper fixing block 17 fixedly connected to the side wall of the movable cylinder 15; the first limiting ring 16 is adapted to engage with the first limiting groove 14 at the upper end of the lower support ring 13, the lower end of the upper fixing block 17 is provided with a first cross groove 18 for engaging the detachable stirring assembly, and the upper end of the movable cylinder 15 is provided with a second limiting groove 19.

[0056] In this embodiment, specifically, the lower support mechanism includes a fixed cylinder 24 fixedly sleeved on the lower part of the outer peripheral wall of the stirring rod 12, and at least one lower fixing block 25 fixedly connected to the side wall of the fixed cylinder 24; the upper end of the lower fixing block 25 is provided with a second cross groove 26 for engaging the detachable stirring assembly, and the second cross groove 26 is arranged vertically corresponding to the first cross groove 18.

[0057] In this embodiment, specifically, the detachable stirring assembly includes a cross block 27 and a stirring element fixedly connected to the side wall of the cross block 27; the upper end of the cross block 27 is engaged with the inner wall of the first cross groove 18, and the lower end of the cross block 27 is engaged with the inner wall of the second cross groove 26.

[0058] In this embodiment, specifically, the lifting and holding mechanism includes at least two guide rods 22 fixedly connected to the lower end of the top plate 6, an electric cylinder 201 fixedly installed at the lower end of the top plate 6, a pressure ring 20 slidably sleeved on the outer peripheral wall of the stirring rod 12, and linear bearings 23 corresponding to the guide rods 22. The linear bearings 23 are fixedly connected to the upper end of the pressure ring 20 through the guide rods 22. The inner wall of the linear bearings 23 is slidably attached to the outer peripheral wall of the corresponding guide rod 22. The lower end of the output shaft of the electric cylinder 201 is fixedly connected to the upper end of the pressure ring 20. The lower end of the pressure ring 20 is limited and abutted against the upper end of the movable cylinder 15. A second limiting ring 21 is fixedly connected to the lower end of the pressure ring 20. The second limiting ring 21 is adapted to the second limiting groove 19.

[0059] Example 1: In this example, specifically, the stirring component includes a first connecting block 29 fixedly connected to the side wall of the cross block 27, an upper heating ring 30 fixedly connected to the end of the first connecting block 29 away from the cross block 27, multiple connecting posts 33 fixedly connected vertically to the lower end of the upper heating ring 30, a lower heating block 32 fixedly connected to the lower end of the multiple connecting posts 33, and a second connecting block 31 fixedly connected to the upper end of the lower heating block 32; the side wall of the second connecting block 31 is fixedly connected to the side wall of the cross block 27, and an electric heating block 34 is fixedly installed in the cavity of both the upper heating ring 30 and the lower heating block 32. By setting up a three-dimensional frame-type stirring structure consisting of an upper heating ring 30, connecting columns 33, and a lower heating block 32, and installing electric heating blocks 34 in the cavities of the upper heating ring 30 and the lower heating block 32, synchronous heating treatment of refractory materials is achieved during the stirring process. The upper heating ring 30 and the lower heating block 32 are distributed vertically and connected by multiple connecting columns 33, which not only expands the contact area between the stirring components and the materials, but also enables heat to be uniformly transferred from different height levels of the materials, significantly improving heat exchange efficiency and temperature distribution uniformity. It is particularly suitable for the preparation of special refractory materials that require temperature control.

[0060] Example 2: In this example, specifically, the stirring components are at least two stirring blocks 28 fixedly connected to the side wall of the cross block 27. By directly fixing at least two stirring blocks 28 to the side wall of the cross block 27, a simple and low-cost stirring assembly is formed. The multiple stirring blocks 28 rotate with the cross block 27 under the drive of the stirring rod 12, which can generate strong turbulence in the material, effectively shearing, mixing and turning over the high-hardness and high-abrasion refractory material particles, meeting the mixing requirements of conventional refractory materials.

[0061] It should be noted that the electric cylinder 201 can drive the pressure ring 20 to move upward along the axial direction of the guide rod 22, thereby releasing the downward pressure limit of the pressure ring 20 on the movable cylinder 15. The movable cylinder 15 can slide upward along the axial direction of the stirring rod 12, so that the first cross groove 18 is separated from the cross block 27, thereby unlocking the detachable stirring assembly.

[0062] In this design, the "limiting fit" and "axial locking" of the lifting and holding mechanism on the movable cylinder 15 refer to the following: When the electric cylinder 201 drives the pressure ring 20 to press down, the lower end of the pressure ring 20 abuts against the upper end of the movable cylinder 15, and through the engagement of the second limiting ring 21 and the second limiting groove 19, the movable cylinder 15 is axially positioned, preventing it from moving upwards due to vibration or centrifugal force during operation. In this state, the movable cylinder 15 and the stirring rod 12 have a clearance fit that allows relative rotation, and the movable cylinder 15 and the pressure ring 20 are not rigidly fixed. When the stirring rod 12 rotates and drives the cross block 27 to rotate through the lower support mechanism, the cross block 27 drives the upper fixed block 17 and the movable cylinder 15 to rotate freely around the axis of the stirring rod 12 through the first cross groove 18. The pressure ring 20 only provides axial clamping force and does not restrict the circumferential rotation of the movable cylinder 15. That is, "axial locking" only refers to constraining the axial displacement of the movable cylinder 15, rather than locking its circumferential rotation.

[0063] Working principle: Before the refractory material mixing operation, the bottom of the mixing tank 2 is first sealed by the discharge sealing mechanism. Specifically, the cylinder 101 is activated, and the cylinder 101 drives the lifting block 102 at the upper end of the output shaft to move upward, which drives the sealing column 103 fixedly connected to the upper end of the lifting block 102 to rise synchronously, so that the outer peripheral wall of the sealing column 103 slides against the inner wall of the second discharge trough 105 and the inner wall of the first discharge trough 104 at the same time, thus completing the reliable sealing of the discharge port.

[0064] Subsequently, the pre-set feeding port (not shown in the figure) on the conical cylinder 4 is opened, and the refractory material raw material to be mixed is put into the placement assembly consisting of the inner tank 3, the conical cylinder 4 and the straight cylinder 5;

[0065] When the stirring drive mechanism is started, the motor 8 starts to work. The output shaft of the motor 8 drives the rotating rod 11 to rotate. The rotating rod 11 rotates stably under the joint support of the first bearing seat 7 fixed to the upper end of the top plate 6 and the second bearing seat 10 fixed to the support platform 1, and drives the stirring rod 12, which is coaxially fixed to it, to rotate.

[0066] At this time, the lifting and holding mechanism is in the locked state, the electric cylinder 201 remains extended, and its output shaft pushes the pressure ring 20. Under the precise guidance of the guide rod 22 and the linear bearing 23, the pressure ring 20 moves downward along the axial direction of the stirring rod 12. The lower end of the pressure ring 20 abuts against the upper end of the movable cylinder 15. At the same time, the second limiting ring 21 fixed to the lower end of the pressure ring 20 is inserted into the second limiting groove 19 opened at the upper end of the movable cylinder 15. The pressure ring 20 continues to press down, pushing the movable cylinder 15 to slide downward until the first limiting ring 16 fixedly connected to the lower end of the movable cylinder 15 is completely inserted into the first limiting groove 14 opened at the upper end of the lower support ring 13.

[0067] At this time, the movable cylinder 15 is pressed and positioned by the pressure ring 20 in the axial direction and cannot move upward. However, the movable cylinder 15 and the stirring rod 12 are in a clearance fit that allows relative rotation, so the movable cylinder 15 can still rotate freely around the axis of the stirring rod 12.

[0068] The first cross groove 18 at the lower end of the upper fixing block 17, which is fixedly connected to the side wall of the movable cylinder 15, corresponds to the second cross groove 26 at the upper end of the lower fixing block 25, which is fixedly sleeved on the side wall of the fixed cylinder 24 at the lower outer peripheral wall of the stirring rod 12. The detachable stirring assembly is installed between the upper support mechanism and the lower support mechanism by having the upper end of the cross block 27 engaged in the first cross groove 18 and the lower end engaged in the second cross groove 26.

[0069] When the stirring rod 12 rotates, the lower support mechanism (fixed cylinder 24 and lower fixed block 25) fixedly connected to the lower part of the stirring rod 12 rotates accordingly, driving the cross block 27 to rotate through the second cross groove 26, and the cross block 27 then drives the upper fixed block 17 to rotate through the first cross groove 18. Since the movable cylinder 15 and the stirring rod 12 are in a rotating fit, the movable cylinder 15 rotates freely around the axis of the stirring rod 12 along with the cross block 27.

[0070] At this time, the pressure ring 20 only provides axial clamping force, and the second limiting ring 21 and the second limiting groove 19 at its lower end only play the role of auxiliary positioning and preventing radial swaying, and do not restrict the circumferential rotation of the movable cylinder 15; the torque of the stirring rod 12 is transmitted to the cross block 27 through the lower fixed block 25 and the upper fixed block 17, which in turn drives the stirring component fixedly connected to the side wall of the cross block 27 to rotate in the placement assembly, so as to fully stir and mix the refractory material;

[0071] If the structure of Embodiment 1 is adopted, the first connecting block 29 and the second connecting block 31 of the stirring component fix the frame structure composed of the upper heating ring 30, the connecting column 33 and the lower heating block 32 on the cross block 27. The electric heating blocks 34 in the cavities of the upper heating ring 30 and the lower heating block 32 are simultaneously energized and heated during the stirring process to uniformly heat the material.

[0072] If the structure of Example 2 is adopted, at least two stirring blocks 28 on the side wall of the cross block 27 directly shear, mix and tumble the material;

[0073] After mixing is completed, the cylinder 101 is activated to drive the lifting block 102 and the sealing column 103 to move down, so that the sealing column 103 is disengaged from the first discharge chute 104 and the second discharge chute 105, the bottom of the mixing tank 2 is opened, and the mixed material is smoothly slid down to the bottom of the inner tank 3 under the guidance of the inclined surface of the conical cylinder 4, and discharged through the second discharge chute 105 and the first discharge chute 104 to the inclined platform 9 below the support platform 1, where it is received by external equipment;

[0074] When the detachable mixing assembly needs to be replaced, the electric cylinder 201 is retracted, which drives the pressure ring 20 to move upward along the guide rod 22, releasing the axial pressing limit of the pressure ring 20 on the movable cylinder 15. At the same time, the second limiting ring 21 disengages from the second limiting groove 19. The operator slides the movable cylinder 15 upward along the mixing rod 12, causing the first limiting ring 16 to disengage from the first limiting groove 14, and driving the upper fixed block 17 upward until the first cross groove 18 is completely separated from the upper end of the cross block 27.

[0075] At this point, the upper end of the cross block 27 has been freed from the constraint, and the operator can remove the entire detachable mixing assembly from the side. When installing a new assembly, first insert the lower end of the cross block 27 of the new mixing assembly into the second cross groove 26 of the lower fixing block 25, then slide the movable cylinder 15 downward so that the first cross groove 18 locks the upper end of the cross block 27, and then drive the pressure ring 20 downward again through the electric cylinder 201 to lock the movable cylinder 15 axially and position it, thus completing the quick replacement.

[0076] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0077] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A refractory mixer having a replaceable wear-resistant mixing assembly, characterized in that, It includes a support platform (1), a mixing tank (2) fixedly installed on the upper end of the support platform (1), a placement component housed inside the mixing tank (2), a top plate (6) fixedly sealed on the upper end of the placement component, a stirring drive mechanism set on the top plate (6), a stirring rod (12) connected to the stirring drive mechanism, a lifting and holding mechanism for locking the detachable stirring component, and a discharge sealing mechanism set at the bottom of the support platform (1) and the mixing tank (2); The lower end of the support platform (1) is provided with a first discharge trough (104), and the lower end of the mixing tank (2) is provided with a second discharge trough (105). The inner wall of the first discharge trough (104) is flush with the inner wall of the second discharge trough (105). A lower support ring (13) is fixedly connected to the upper part of the outer peripheral wall of the stirring rod (12). A first limiting groove (14) is opened at the upper end of the lower support ring (13). An upper support mechanism that cooperates with the lower support ring (13) is sleeved on the outer peripheral wall of the stirring rod (12). A lower support mechanism is fixedly installed on the lower part of the outer peripheral wall of the stirring rod (12). A detachable stirring assembly is installed together between the upper support mechanism and the lower support mechanism. The lifting and holding mechanism is fixedly installed at the lower end of the top plate (6). The output end of the lifting and holding mechanism is limited to the upper end of the upper support mechanism to axially lock the detachable stirring assembly. An inclined platform (9) is provided below the support platform (1).

2. A refractory mixer with replaceable wear-resistant mixing elements according to claim 1, characterized in that The discharge sealing mechanism includes a cylinder (101) fixedly connected to the side wall of the support platform (1), a lifting block (102) fixedly connected to the upper end of the output shaft of the cylinder (101), and a sealing column (103) fixedly connected to the upper end of the lifting block (102); the outer peripheral wall of the sealing column (103) simultaneously slides against the inner wall of the second discharge trough (105) and the inner wall of the first discharge trough (104) for sealing and opening control of the discharge port of the mixing tank (2).

3. The refractory mixer with replaceable wear-resistant mixing assembly according to claim 1, characterized in that, The placement assembly includes an inner tank (3) housed inside the bottom of the mixing tank (2), a conical cylinder (4) fixed to the upper end of the inner tank (3), and a straight cylinder (5) fixed to the upper end of the conical cylinder (4). The lower end of the inner tank (3) is open, and the second discharge chute (105) is connected to the inner cavity of the inner tank (3).

4. The refractory mixer with replaceable wear-resistant mixing assembly according to claim 1, characterized in that, The stirring drive mechanism includes a first bearing seat (7) fixedly connected to the upper end of the top plate (6), a motor (8) fixedly installed on the upper end of the top plate (6), a second bearing seat (10) fixedly installed on the support platform (1), and a rotating rod (11) that is connected to the output end of the motor (8) for transmission. The upper part of the outer peripheral wall of the rotating rod (11) is rotatably engaged with the first bearing seat (7), the lower end of the output shaft of the motor (8) is fixedly connected to the upper end of the rotating rod (11), the lower part of the outer peripheral wall of the rotating rod (11) is rotatably engaged with the second bearing seat (10), and the stirring rod (12) is coaxially fixedly connected with the rotating rod (11).

5. The refractory mixer with replaceable wear-resistant mixing assembly according to claim 1, characterized in that, The upper support mechanism includes a movable cylinder (15) that is slidably sleeved on the outer peripheral wall of the stirring rod (12), a first limiting ring (16) fixedly connected to the lower end of the movable cylinder (15), and at least one upper fixing block (17) fixedly connected to the side wall of the movable cylinder (15); the first limiting ring (16) is adapted to engage with the first limiting groove (14) at the upper end of the lower support ring (13), the lower end of the upper fixing block (17) is provided with a first cross groove (18) for engaging the detachable stirring assembly, and the upper end of the movable cylinder (15) is provided with a second limiting groove (19).

6. A refractory mixer having replaceable wear-resistant mixing elements as claimed in claim 5, characterized in that The lower support mechanism includes a fixed cylinder (24) fixedly sleeved on the lower part of the outer peripheral wall of the stirring rod (12) and at least one lower fixing block (25) fixedly connected to the side wall of the fixed cylinder (24); the upper end of the lower fixing block (25) is provided with a second cross groove (26) for snapping into the detachable stirring assembly, and the second cross groove (26) is arranged vertically and vertically corresponding to the first cross groove (18).

7. A refractory mixer having replaceable wear-resistant mixing elements as claimed in claim 6, characterized in that The detachable mixing assembly includes a cross block (27) and a mixing element fixedly connected to the side wall of the cross block (27); the upper end of the cross block (27) is engaged with the inner wall of the first cross groove (18), and the lower end of the cross block (27) is engaged with the inner wall of the second cross groove (26).

8. A refractory mixer having replaceable wear-resistant mixing elements as claimed in claim 1, wherein, The lifting and holding mechanism includes at least two guide rods (22) fixedly connected to the lower end of the top plate (6), an electric cylinder (201) fixedly installed at the lower end of the top plate (6), a pressure ring (20) slidably sleeved on the outer peripheral wall of the stirring rod (12), and linear bearings (23) corresponding to the guide rods (22). The linear bearings (23) are fixedly connected to the upper end of the pressure ring (20) through the guide rods (22). The inner wall of the linear bearings (23) slides against the outer peripheral wall of the corresponding guide rods (22). The lower end of the output shaft of the electric cylinder (201) is fixedly connected to the upper end of the pressure ring (20). The lower end of the pressure ring (20) is limited and abutted against the upper end of the movable cylinder (15). The lower end of the pressure ring (20) is fixedly connected to a second limiting ring (21). The second limiting ring (21) is adapted to the second limiting groove (19).

9. A refractory mixer having replaceable wear-resistant mixing elements as claimed in claim 7, wherein, The stirring component includes a first connecting block (29) fixedly connected to the side wall of the cross block (27), an upper heating ring (30) fixedly connected to the end of the first connecting block (29) away from the cross block (27), multiple connecting columns (33) fixedly connected vertically to the lower end of the upper heating ring (30), a lower heating block (32) fixedly connected to the lower end of the multiple connecting columns (33), and a second connecting block (31) fixedly connected to the upper end of the lower heating block (32); the side wall of the second connecting block (31) is fixedly connected to the side wall of the cross block (27), and an electric heating block (34) is fixedly installed in the cavity of both the upper heating ring (30) and the lower heating block (32).

10. A refractory mixer having replaceable wear-resistant mixing elements as claimed in claim 7, wherein, The agitator consists of at least two agitator blocks (28) that are fixedly connected to the side wall of the cross block (27).

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