Conical countercurrent aluminum oxide ceramic lining plate for mixing machine

Abstract

The utility model discloses a conical countercurrent aluminum oxide ceramic lining plate for a mixing machine. The conical countercurrent aluminum oxide ceramic lining plate comprises a lining plate body, a rubber layer and a metal substrate, the lining plate body is made of an aluminum oxide ceramic material and can effectively resist cutting and abrasion of materials. The rubber layer is used as a buffer layer, so that impact and vibration in the operation process of the sintering cylinder mixer can be effectively absorbed and dispersed, and the service life of the lining plate is prolonged. The metal substrate provides structural support and is connected with the equipment cylinder, so that the overall strength of the lining plate is enhanced, and the bending resistance and impact resistance of the lining plate are improved. The lining plate body and the metal substrate are firmly bonded through an adhesive, and reliable connection with equipment is achieved through the installation bolt holes and the stepped holes. The bonding daub is embedded in the upper portion of the stepped hole to play a role in filling and sealing, external impurities are prevented from entering, and the connection strength is prevented from being affected. The lining plate is simple in structure and convenient to implement, has excellent comprehensive performance, can effectively prolong the service life and reduce the maintenance cost, and is suitable for equipment under various high-temperature and high-abrasion working conditions.

Description

TECHNICAL FIELD

[0001] The utility model relates to metallurgical equipment wear -resistant part technical field, concretely point to a kind of conical countercurrent alumina ceramic lining of mixing machine. BACKGROUND

[0002] Sintering cylinder mixing machine is the key equipment commonly used in metallurgy, building materials and other industries, mainly used for mixing and pelletizing treatment to powdery materials. In its working process, the inner wall of the cylinder needs to withstand high temperature, high wear and tear and the impact and extrusion of materials and other harsh working conditions. Therefore, the lining plate of the cylinder inner wall needs to have excellent wear resistance, high temperature resistance, impact resistance and service life.

[0003] At present, the commonly used lining plate materials of sintering cylinder mixing machine mainly include the following:

[0004] High manganese steel: it has certain wear resistance and toughness, but the hardness is relatively low, and it is easy to soften in high temperature environment, resulting in decreased wear resistance and shorter service life.

[0005] Wear-resistant cast iron: it has higher hardness and better wear resistance than high manganese steel, but it has poor impact resistance and is prone to cracks and fractures when subjected to frequent impact.

[0006] Alloy steel: the hardness and wear resistance are improved through alloying treatment, but the cost is higher, and the performance still decreases in high temperature and corrosive environment.

[0007] In addition to the limitations of the materials themselves, the traditional lining plates also have the following shortcomings in structural design:

[0008] Convenient installation: the installation method of traditional lining plates is usually complex, and multiple tools and accessories are needed, which consumes time and effort in the installation process and affects the efficiency of equipment maintenance.

[0009] Insufficient connection strength: the connection between the traditional lining plate and the cylinder is usually bolted, but the bolt hole design is unreasonable or the connection part lacks effective sealing and protection, which can easily cause bolt loosening, loose connection and other problems, affecting the stability and service life of the lining plate.

[0010] Stress concentration: the structural design of traditional lining plates does not fully consider the stress distribution problem, which can easily cause stress concentration and accelerate the fatigue damage and damage of the lining plate.

[0011] Lack of buffer protection: the traditional lining plate directly bears the impact and extrusion of materials, and lacks effective buffer protection, which can easily cause deformation, wear and even fracture of the lining plate body.

[0012] In recent years, alumina ceramic materials have been gradually applied to the lining plate of sintering cylinder mixers due to their excellent wear resistance, high temperature resistance and chemical stability. However, alumina ceramic materials also have some limitations:

[0013] Limited impact resistance: although ceramic materials have high hardness, they are relatively brittle and have relatively poor impact resistance, which can easily cause them to break when impacted.

[0014] High installation difficulty: the processing of ceramic materials is difficult, and traditional bolt connection methods cannot meet the installation requirements, so new connection methods need to be developed.

[0015] Therefore, a conical countercurrent alumina ceramic lining plate for mixers is proposed to solve the existing problems. Content of the utility model

[0016] The technical problem to be solved by the utility model is to overcome the defects of the above-mentioned technology, and to provide a conical countercurrent alumina ceramic lining plate for mixers.

[0017] To solve the above-mentioned technical problems, the technical scheme provided by the utility model is a conical countercurrent alumina ceramic lining plate for mixers: comprising a lining plate body and a metal base plate.

[0018] The lining plate body and the metal base plate are connected by an adhesive, the metal base plate is matched with the lining plate body, the metal base plate is provided with mounting bolt holes at four corners, and the lining plate body is provided with stepped holes matched with the mounting bolt holes.

[0019] It also includes adhesive mortar, which is embedded in the upper part of the stepped hole to seal the upper end of the stepped hole of the lining plate body.

[0020] As an improvement, it also includes a rubber layer, which is arranged between the lining plate body and the metal base plate, and the lining plate body, the rubber layer and the metal base plate are connected by an adhesive.

[0021] As an improvement, the rubber layer is matched with the lining plate body.

[0022] The utility model has the advantages compared with the prior art:

[0023] 1. The rubber layer serves as the carrier and buffer layer of the lining plate body, which can effectively absorb and disperse the impact and vibration from the operation of the sintering cylinder mixer, reduce the mechanical stress borne by the lining plate body, delay its fatigue damage, thereby prolonging the service life of the lining plate, and the elastic deformation of the rubber layer can compensate for the slight displacement between the lining plate body and the metal base plate due to temperature changes or mechanical stress, thereby improving the stability of the connection.

[0024] 2. The metal substrate provides structural support for the liner body and connects it to the cylinder of the sintering cylindrical mixer, effectively enhancing the overall strength of the liner and improving its bending and impact resistance.

[0025] 3. The adhesive connection, the stepped hole and bolt connection, and the sealing effect of the adhesive putty work together to ensure the reliability of the connection between the liner and the equipment, and prevent the liner from falling off or being damaged due to a loose connection.

[0026] 4. The ceramic liner has a simple structure and is easy to implement. Through the multi-layer composite structure design of the liner body, rubber layer and metal substrate, it combines the excellent wear resistance and high temperature resistance of ceramic materials with the buffering effect of rubber layer and the structural support of metal substrate, which enhances the overall strength of the liner, improves its bending and impact resistance, and absorbs and disperses the impact and vibration from the operation of sintering cylinder mixer, thus extending the service life of the liner. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of a conical counter-current alumina ceramic liner for a mixer according to this utility model.

[0028] As shown in the figure: 1. Liner body, 2. Metal substrate, 3. Mounting bolt holes, 4. Stepped holes, 5. Adhesive putty, 6. Rubber layer. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the utility model embodiments clearer, the technical solutions of the utility model embodiments will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the utility model, not all embodiments. The components of the utility model embodiments described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0030] In the description of the embodiments of the utility model, it should be noted that if terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," or "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, they are only for the convenience of describing the 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, and therefore should not be construed as a limitation on the utility model. Furthermore, terms such as "first," "second," and "third" are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0031] In addition, if the terms "horizontal", "vertical", "overhanging" and the like appear, it does not mean that the component must be absolutely horizontal or overhanging, but can be slightly inclined. As "horizontal" only means that its direction is more horizontal relative to "vertical", it does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0032] In the description of the utility model embodiment, "a plurality of" represents at least 2.

[0033] In the description of the utility model embodiment, it also needs to be explained that, unless otherwise explicitly specified and limited, if the terms "set", "install", "connect", "connect" appear, it should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or indirectly connected through an intermediate medium, it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0034] In combination with the drawings, a kind of cone-shaped countercurrent alumina ceramic lining plate for mixing machine, including lining plate body 1 and metal substrate 2, in the embodiment, the lining plate body 1 adopts alumina ceramic material, with excellent wear resistance and high temperature resistance, at the same time, the high hardness of ceramic material makes it not easy to occur plastic deformation in the wear process, can effectively resist the cutting and wear of material, can effectively prolong the service life of lining plate.

[0035] In addition, the lining plate body 1 has regular geometric shape, such as rectangle or arc, to adapt to the shape of the inner wall of sintering cylinder mixing machine.

[0036] The lining plate body 1 and the metal substrate 2 are connected by adhesive, the lining plate body 1 and the metal substrate 2 are firmly bonded together by adhesive, specifically, adhesive is evenly applied on the surface of the metal substrate 2, then the lining plate body 1 is placed on the adhesive, and the two are tightly fitted by applying appropriate pressure, to avoid gap or looseness between the two, ensure the close combination between the two, and at the same time, avoid the lining plate body 1 from loosening or falling off due to vibration, impact and the like during the operation of sintering cylinder mixing machine.

[0037] The metal substrate 2 is adapted to the lining plate body 1, to ensure that the two can be tightly fitted, avoid gap or misplacement, and at the same time realize uniform stress distribution and good connection strength, avoid stress concentration, and reduce the risk of fracture or damage of lining plate;

[0038] Specifically, during the operation of sintering cylinder mixing machine, the lining plate body 1 will be impacted and extruded by material, and the metal substrate 2 can prevent the lining plate body 1 from deforming or being damaged due to stress concentration.

[0039] In specific implementation, the metal base plate 2 provides structural support for the lining plate body 1 and realizes connection with the sintering cylinder mixing machine cylinder body, which can effectively enhance the overall strength and improve the bending and impact resistance.

[0040] The metal base plate 2 is provided with mounting bolt holes 3 at four corners, which are uniformly distributed at four corners of the metal base plate 2, so as to ensure uniform stress of the lining plate and avoid deformation or damage of the lining plate due to uneven stress.

[0041] In specific implementation, the metal base plate 2 is fixed on the cylinder body of the sintering cylinder mixing machine by bolts, thereby realizing connection of the lining plate body 1 with the equipment.

[0042] Further, the lining plate body 1 is provided with stepped holes 4 matched with the mounting bolt holes 3, which facilitates bolt installation and fixation and simplifies the installation process.

[0043] Specifically, the stepped holes 4 and the mounting bolt holes 3 are matched to realize reliable connection between the lining plate body 1 and the metal base plate 2 and the sintering cylinder mixing machine cylinder body.

[0044] In implementation, the stepped holes 4 are composed of hole segments with different diameters, forming a stepped structure. The upper part of the stepped holes 4 is matched with the mounting bolt holes 3 on the metal base plate 2 for bolt passing, and the lower part of the stepped holes 4 is used for accommodating bolt heads or nuts and providing additional support.

[0045] In addition, the stepped holes 4 can play a guiding role, facilitating bolt alignment and installation position, simplifying the installation process, and ensuring the accuracy of the bolt installation position and avoiding uneven stress or uneven wear of the lining plate due to installation errors.

[0046] It also includes adhesive mortar 5 embedded in the upper part of the stepped holes 4 to play a filling role to seal the upper end of the stepped holes 4 of the lining plate body 1, prevent external impurities from entering, and avoid affecting the adhesion effect of the adhesive and the connection strength of the lining plate body 1.

[0047] In specific implementation, the working environment of the sintering cylinder mixing machine is usually harsh, with a large amount of dust and other impurities. The sealing effect of the adhesive mortar 5 can effectively prevent impurities from entering the inside of the stepped holes 4, avoid pollution and corrosion of the bolt connection part, and prevent impurities from entering to reduce wear and corrosion of the connection part and prolong the service life of the bolt and the lining plate.

[0048] Further, a rubber layer 6 is arranged between the backing plate body 1 and the metal base plate 2, and the backing plate body 1 and the rubber layer 6 and the rubber layer 6 and the metal base plate 2 are connected by an adhesive, and in particular, the rubber layer 6 is matched with the backing plate body 1.

[0049] In particular, the rubber layer 6 serves as a carrier and a buffer layer of the backing plate body 1, and is connected with the backing plate body 1 and the metal base plate 2 by an adhesive. The rubber layer 6 has a low elastic modulus, can effectively absorb and disperse the impact and vibration from the sintering cylinder mixer during operation, can effectively reduce the mechanical stress borne by the backing plate body 1, delay fatigue damage, and prolong the service life of the backing plate body 1. Meanwhile, the buffering effect of the rubber layer 6 can reduce the direct friction between the backing plate body 1 and the material, and reduce the wear rate.

[0050] Meanwhile, in the implementation, the elastic deformation of the rubber layer 6 can compensate for the slight displacement between the backing plate body 1 and the metal base plate 2 due to temperature changes or mechanical stress, improve the stability of the connection, and the adhesion of the rubber layer 6 can prevent the backing plate body 1 and the metal base plate 2 from being peeled off, and further improve the connection strength.

[0051] In actual use, the backing plate body 1 can be directly bonded with the mixer cylinder, or bonded with the metal base plate 2 and then bonded with the mixer cylinder, or bonded with the rubber layer 6 and the metal base plate 2 and then bonded with the mixer cylinder.

[0052] The above describes the present application and its embodiments, which are not restrictive, and the embodiments shown in the drawings are only one of the embodiments of the present application, and the actual structure is not limited thereto. In summary, if a person skilled in the art is inspired by the above description, without departing from the creative purpose of the present application, without creative design, similar structural modes and embodiments of the technical solutions can be designed, which should belong to the protection scope of the present application.

Claims

1. A conical counterflow alumina ceramic liner for a mixer characterized by: It comprises a backing plate body (1) and a metal base plate (2); The backing plate body (1) and the metal base plate (2) are connected by an adhesive, the metal base plate (2) is matched with the backing plate body (1), the metal base plate (2) is provided with mounting bolt holes (3) at four corners, and the backing plate body (1) is provided with stepped holes (4) matched with the mounting bolt holes (3). It also comprises a bonding cement (5) embedded in the upper part of the stepped holes (4) to seal the upper end of the stepped holes (4) of the backing plate body (1).

2. A conical counterflow alumina ceramic liner for a mixer as defined in claim 1, characterized in that: It also comprises a rubber layer (6) arranged between the backing plate body (1) and the metal base plate (2), and the backing plate body (1) and the rubber layer (6), the rubber layer (6) and the metal base plate (2) are connected by an adhesive.

3. A conical counterflow alumina ceramic liner for a mixer as defined in claim 2, characterized in that: The rubber layer (6) is matched with the backing plate body (1).

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