A preheater system anti-scabbing structure

Abstract

This utility model relates to the field of preheater technology, specifically to an anti-scabbing structure for a preheater system. It includes a movable block mounted on the inner wall of the preheater body, a connecting rod on the back side of the movable block, the tail of the connecting rod protruding from the preheater body, and a support structure on the connecting rod. This reduces the adhesion and accumulation of harmful components, while the vibration cleaning mechanism further ensures the cleanliness and unobstructed flow inside the preheater. This not only improves the heat exchange efficiency of the preheater but also reduces the risk of preheater blockage, significantly increasing production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of preheater technology, specifically to an anti-scabbing structure for a preheater system. Background Technology

[0002] The main function of the preheater is to fully utilize the waste heat from the exhaust gas from the rotary kiln and decomposition furnace to heat the raw materials, thereby preheating the raw materials and decomposing some carbonates. It maximizes the heat exchange efficiency between gas and solid, and achieves high quality, high output and low consumption in the entire calcination system. It must have three functions: uniform gas-solid dispersion, rapid heat exchange and efficient separation.

[0003] Throughout the entire process of use, the preheater is affected by harmful components in the raw materials (mainly the quality of limestone). The alkali content and chloride ions in these harmful components can easily form a crust in the preheater. The crust becomes thicker and thicker, causing preheater blockage accidents, affecting safe production and reducing economic benefits. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of existing technologies where the preheater will form a crust inside during use, which affects production, and to provide a preheater system anti-crusting structure.

[0005] To achieve the above objectives, this utility model embodiment adopts the following technical solution: a preheater system anti-scabbing structure, including a movable block disposed on the inner wall of the preheater body, a connecting rod disposed on the back side of the movable block, the tail of the connecting rod protruding from the preheater body, and a support structure disposed on the rod body.

[0006] Furthermore, the active block is made of ceramic.

[0007] Furthermore, the support structure includes a support block disposed on the outside of the preheater body, and the connecting rod passes through the support block.

[0008] Furthermore, a sealing seat is provided on the outer wall of the preheater body, the connecting rod passes through the middle position of the sealing seat, a packing for sealing is provided between the sealing seat and the connecting rod, and the support block is sleeved on the outside of the sealing seat.

[0009] Furthermore, a spring is provided on the outer side of the sealing seat and the connecting rod, an end cap is provided on the top of the connecting rod, and the top of the spring is located inside the end cap.

[0010] The beneficial effects of this utility model embodiment are as follows: A sealing seat is provided on the outer wall of the preheater body, and the connecting rod passes through the middle of the sealing seat. A packing for sealing is provided between the sealing seat and the connecting rod, which effectively prevents the leakage of gas and dust, reduces heat loss, and ensures the performance. A spring is provided on the outside of the sealing seat and the connecting rod, and an end cap is provided on the top of the connecting rod. The top of the spring is located inside the end cap, and the bottom of the spring is stressed on the support block, ensuring the stability of the spring support and ensuring the stability of the movable block installation. At the same time, when it is necessary to clean the scale, it is only necessary to tap the top of the end cap. Under the action of the spring, the movable block will vibrate, thereby shaking off the scale. The smooth surface and high temperature resistance of the ceramic movable block effectively reduce the adhesion and accumulation of harmful components, while the vibration cleaning mechanism further ensures the cleanliness and unobstructed flow inside the preheater. This not only improves the heat exchange efficiency of the preheater but also reduces the risk of preheater blockage, greatly improving production efficiency. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the installation structure of this utility model;

[0012] Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0013] In the diagram: 1. Preheater body; 2. Movable block; 201. Connecting rod; 3. Support structure; 301. End cap; 302. Spring; 303. Support block; 304. Sealing seat. Detailed Implementation

[0014] The preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely for explaining the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0015] See Figures 1 to 2 This utility model discloses an anti-scaling structure for a preheater system. In the production process of new dry-process cement clinker rotary kilns, the preheater plays an important role in heating raw materials using the waste heat from the rotary kiln and decomposition furnace, promoting raw material preheating and partial carbonate decomposition. However, harmful components in the raw materials, especially the alkali content and chloride ions in limestone, easily form a scale inside the preheater. As the scale gradually thickens, it can cause preheater blockage.

[0016] The main component is a movable block 2 made of a ceramic material. This ceramic material has a smooth surface, good anti-caking properties, and can maintain its shape stability without deformation in high-temperature environments (below 1000℃). By installing this ceramic movable block 2 on the inner wall of the preheater body 1 at locations prone to skin formation, the adhesion and accumulation of harmful components inside the preheater are effectively reduced, thereby reducing the possibility of skin formation.

[0017] To ensure the ceramic movable block 2 can be securely installed on the inner wall of the preheater body 1, ceramic movable blocks 2 of appropriate size were designed based on the specific location of the crust formation on site, and a combination of stacking and hanging methods was used for fixation. Specifically, a connecting rod 201 is provided on the back side of the movable block 2, with the tail of the connecting rod 201 protruding from the preheater body 1 for easy external operation and fixation. At the same time, a support block 303 is provided on the outside of the preheater body 1, and the connecting rod 201 passes through the support block 303, providing additional support force through the support structure 3, reducing local pressure on the preheater body 1, and ensuring the stability of the movable block 2 under high temperature and airflow impact.

[0018] To prevent high-temperature gas and dust inside the preheater from leaking through the gap between the connecting rod 201 and the preheater body 1, a sealing seat 304 is provided on the outer wall of the preheater body 1. The connecting rod 201 passes through the middle of the sealing seat 304, and a packing for sealing is provided between the sealing seat 304 and the connecting rod 201, which effectively prevents the leakage of gas and dust, reduces heat loss, and ensures the performance.

[0019] To further enhance structural stability and ease of cleaning, a spring 302 is installed on the outside of the sealing seat 304 and the connecting rod 201. An end cap 301 is installed on the top of the connecting rod 201, and the top of the spring 302 is located inside the end cap 301. The bottom of the spring 302 is supported by the support block 303, ensuring stable support for the spring 302 and ensuring the stable installation of the movable block 2. Simultaneously, when it is necessary to clean the scale, simply tapping the top of the end cap 301 will cause the movable block 2 to vibrate under the action of the spring 302, thereby shaking off the scale. The impact force generated by the vibration will promptly remove any scale and accumulated material that may be attached to the surface of the ceramic movable block 2. This timed vibration cleaning mechanism ensures unobstructed flow inside the preheater, guaranteeing smooth continuous production. The smooth surface and high-temperature resistance of the ceramic movable block 2 effectively reduce the adhesion and accumulation of harmful components, while the vibration cleaning mechanism further ensures the cleanliness and unobstructed flow inside the preheater, not only improving the heat exchange efficiency of the preheater but also reducing the risk of preheater blockage, greatly improving production efficiency.

[0020] It should be noted that in the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0022] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, such that a process, article, or apparatus / device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to those processes, articles, or apparatus / devices.

[0023] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A preheater system anti- skinning structure, characterized by: It includes a movable block disposed on the inner wall of the preheater body, a connecting rod disposed on the back side of the movable block, the tail of the connecting rod protruding from the preheater body, and a support structure disposed on the rod body.

2. The preheater system anti -fouling structure according to claim 1, characterized in that: The movable block is made of ceramic.

3. The preheater system anti -fouling structure according to claim 1, characterized in that: The support structure includes a support block disposed on the outside of the preheater body, and the connecting rod passes through the support block.

4. The preheater system anti -fouling structure according to claim 3, characterized in that: A sealing seat is provided on the outer wall of the preheater body, the connecting rod passes through the middle of the sealing seat, a packing for sealing is provided between the sealing seat and the connecting rod, and the support block is sleeved on the outside of the sealing seat.

5. The preheater system anti -fouling structure according to claim 4, characterized in that: A spring is provided on the outside of the sealing seat and the connecting rod, and an end cap is provided on the top of the connecting rod, with the top of the spring located inside the end cap.

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