Refractory energy-saving lining structure of lime rotary kiln

Abstract

The utility model relates to the technical field of rotary kiln linings, and discloses a refractory energy-saving lining structure of a lime rotary kiln, which comprises a lining structure main body mounted on a rotary kiln main body, the spines are installed in the lining structure main body, the spines are made of efficient heat transfer materials, and the surfaces of the spines are coated with anti-sticking coatings; the fan is mounted on the filtering mechanism; any end of the air inlet pipe is mounted on the fan, and the other end of the air inlet pipe is mounted on the rotary kiln main body through a rotating head. According to the rotary kiln, the spikes, the fan and the air inlet pipe are arranged, the spikes are made of efficient heat transfer materials, the surfaces of the spikes are coated with the anti-sticking coatings, limestone blocks can be broken easily, uniform distribution of the materials in the rotary kiln is promoted, the fan provides forced airflow, contact between hot airflow and the materials is improved, and it is guaranteed that the materials are heated evenly; the air inlet pipe ensures that air flow is uniformly distributed when the rotary kiln rotates, so that the heat transfer efficiency and the processing effect are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rotary kiln linings, in particular to a refractory and energy-saving lining structure for a lime rotary kiln. Background Art

[0002] The inner wall of a rotary kiln needs a lining layer to isolate high temperature and wear resistance. Usually, the rotary kiln lining is designed with castables at the kiln head and kiln tail and refractory bricks in the middle section of the kiln for protecting the metal shell of the rotary kiln from the influence of high temperature and chemical erosion. These lining materials can not only withstand extreme temperature changes but also must have good mechanical strength and wear resistance.

[0003] In the prior art, due to the high viscosity and hygroscopicity of lime itself, it is easy to cause material caking. The caked materials will hinder the effective contact between the hot air flow and the materials, thereby reducing the heat transfer efficiency. Moreover, when the rotary kiln rotates, the lime in the middle part is often difficult to effectively contact the lining structure due to the centrifugal force, which results in uneven heating of the lime in the middle part and unsatisfactory processing effect. Therefore, the present application provides a refractory and energy-saving lining structure for a lime rotary kiln to meet the requirements. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide a refractory and energy-saving lining structure for a lime rotary kiln to solve the problems of material caking caused by the viscosity and hygroscopicity of lime during the use of the existing rotary kiln lining, uneven heating of the lime in the middle part during the rotation of the rotary kiln, and low heat transfer efficiency.

[0005] To solve the above-mentioned problems, the utility model is realized through the following technical solutions:

[0006] A refractory and energy-saving lining structure for a lime rotary kiln, comprising a lining structure main body installed on the rotary kiln main body; a plurality of spikes installed in the lining structure main body, on the spikes, the spikes are made of high-efficiency heat transfer materials, and the surface of the spikes is coated with an anti-sticking coating; a fan installed on the filtering mechanism; an air inlet pipe, one end of which is installed on the fan and the other end is installed on the rotary kiln main body through a rotating head.

[0007] A bottom plate is connected to the rotary kiln main body through a mounting frame; a detector is installed on the rotary kiln main body.

[0008] The lining structure main body includes: an inner layer; an intermediate layer covering the surface of the inner layer, and the intermediate layer is made of high-efficiency heat insulation materials.

[0009] The lining structure main body further includes: an outer layer covering the surface of the intermediate layer, and the outer layer is made of wear-resistant and high-temperature-resistant materials.

[0010] The filtering mechanism includes: a filtering box installed on the bottom plate. The filtering box is communicated with the blower through a connecting pipe, and a through hole for using the connecting pipe is opened on the filtering box.

[0011] The filtering mechanism further includes: a first filter layer, a second filter layer, and a third filter layer. The first filter layer, the second filter layer, and the third filter layer are all detachably installed in the filtering box through fixing blocks, and an air inlet is opened on the filtering box.

[0012] The mesh diameter of the first filter layer is larger than that of the second filter layer, and the mesh diameter of the second filter layer is larger than that of the third filter layer.

[0013] The utility model provides a refractory energy-saving inner lining structure for a lime rotary kiln. Compared with the prior art, it has the following beneficial effects:

[0014] In the above solution, by setting the spikes, the blower, and the air inlet pipe, the spikes are made of a high-efficiency heat transfer material and are coated with an anti-sticking coating on their surfaces, which helps to break up the limestone lumps and promote the uniform distribution of the materials in the rotary kiln. The blower provides a forced air flow to improve the contact between the hot air flow and the materials and ensure uniform heating of the materials. The air inlet pipe ensures the uniform distribution of the air flow when the rotary kiln rotates, thereby improving the heat transfer efficiency and processing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic structural diagram of the utility model.

[0016] Figure 2 It is a schematic diagram of the spike structure of the utility model.

[0017] Figure 3 It is a schematic diagram of the structure of the third filter layer of the utility model.

[0018] Figure 4 It is a schematic diagram of the through hole structure of the utility model.

[0019] Figure 5 It is a schematic diagram of the outer layer structure of the utility model.

[0020] The reference numerals in the drawings are:

[0021] 1, rotary kiln main body; 2, detector; 3, mounting rack; 4, bottom plate; 5, rotating head; 6, air inlet pipe; 7, connecting pipe; 8, blower; 9, filtering mechanism; 901, filtering box; 902, third filter layer; 903, second filter layer; 904, fixing block; 905, first filter layer; 906, through hole; 907, air inlet; 10, inner lining structure main body; 1001, outer layer; 1002, intermediate layer; 1003, inner layer; 11, spike. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The present utility model will be further elaborated below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present utility model and not to limit the protection scope of the present utility model.

[0023] The following illustrates the implementation manners of the present utility model through specific specific examples. Those skilled in the art can easily understand other advantages and effects of the present utility model from the content disclosed in this specification. The present utility model can also be implemented or applied through different specific implementation manners. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present utility model.

[0024] Refer to Figure 1 - Figure 5 , a refractory energy-saving lining structure for a lime rotary kiln, including a lining structure main body 10 installed on the rotary kiln main body 1; a plurality of spikes 11 installed inside the lining structure main body 10. On the spikes 11, the spikes 11 are made of a high-efficiency heat transfer material, and the surface of the spikes 11 is coated with an anti-sticking coating; a fan 8 installed on the filtering mechanism 9; an air inlet pipe 6, with one end installed on the fan 8 and the other end installed on the rotary kiln main body 1 through a rotating head 5.

[0025] The spikes 11 are made of a high-efficiency heat transfer material and the surface is coated with an anti-sticking coating, which helps to break up limestone lumps and promote the uniform distribution of materials in the rotary kiln. Through the physical structure of the spikes 11 and the anti-sticking coating, the caking phenomenon of limestone can be reduced, the effective contact between the materials and the lining structure can be improved, and the materials can be ensured to be heated evenly.

[0026] The fan 8 provides a forced air flow to improve the contact between the hot air flow and the materials, ensuring that the materials are heated evenly. Through the air flow provided by the fan 8, the speed of the hot air flow can be increased, the contact area with the materials can be increased, thereby accelerating the heat transfer process, and at the same time helping the materials to turn better in the rotary kiln, ensuring that the materials are heated evenly.

[0027] A bottom plate 4 is connected to the rotary kiln main body 1 through a mounting bracket 3; a detector 2 is installed on the rotary kiln main body 1.

[0028] The bottom plate 4 is used to support auxiliary equipment such as the filtering mechanism 9. Through the installation of the bottom plate 4, it can be ensured that the filtering mechanism 9 is stably installed in an appropriate position to facilitate the filtering treatment of the air flow in the rotary kiln and reduce the content of particulate matter discharged into the atmosphere.

[0029] The detector 2 is installed on the rotary kiln main body 1 and is used to monitor the working conditions inside the rotary kiln in real time, such as parameters such as temperature and pressure. Through the data feedback of the detector 2, the operation situation inside the rotary kiln can be monitored in real time, and the working state of the fan 8 can be adjusted as needed to ensure the stable operation of the rotary kiln, improve the heat transfer efficiency and processing effect.

[0030] The main body 10 of the lining structure includes: an inner layer 1003; and an intermediate layer 1002 covering the surface of the inner layer 1003, with the intermediate layer 1002 made of a highly efficient heat insulation material.

[0031] The inner layer 1003 is made of a smart responsive material that can automatically adjust its thermal conductivity according to temperature changes, thereby optimizing thermal energy management and improving energy utilization efficiency. The smart responsive material can automatically adjust its thermal conductivity according to the temperature changes inside the rotary kiln, thus achieving a dynamic distribution of heat, reducing local overheating, and increasing the overall service life of the lining.

[0032] The intermediate layer 1002 is made of a highly efficient heat insulation material and is located on the surface of the inner layer 1003, used to reduce the transfer of heat from the kiln to the outside, lower the temperature of the kiln shell, improve thermal efficiency, effectively reduce heat loss, increase the overall thermal efficiency of the rotary kiln, while also reducing the temperature of the kiln shell and reducing energy consumption.

[0033] The main body 10 of the lining structure further includes: an outer layer 1001 covering the surface of the intermediate layer 1002, with the outer layer 1001 made of a wear-resistant and high-temperature-resistant material.

[0034] The filtering mechanism 9 includes: a filtering box 901 installed on the bottom plate 4, with the filtering box 901 connected to the blower 8 through a connecting pipe 7, and the filtering box 901 is provided with a through hole 906 for the use of the connecting pipe 7.

[0035] The filtering box 901 is installed on the bottom plate 4 and is connected to the blower 8 through a connecting pipe 7, used to filter the particulate matter in the waste gas discharged from the rotary kiln. The filtering box 901 can effectively reduce the particulate matter content in the waste gas, reduce the impact on the environment, and also helps to improve the working efficiency of the rotary kiln because it can reduce the impact of the dust in the waste gas on the blower 8.

[0036] The filtering mechanism 9 further includes: a first filtering layer 905, a second filtering layer 903, and a third filtering layer 902. The first filtering layer 905, the second filtering layer 903, and the third filtering layer 902 are all detachably installed in the filtering box 901 through fixing blocks 904, and the filtering box 901 is provided with an air inlet 907.

[0037] The first filtering layer 905 is used to capture larger particulate matter, the second filtering layer 903 is used to further filter smaller particulate matter. After the first-stage filtration, the smaller particulate matter in the waste gas will be captured by the second-stage filtering layer, further purifying the waste gas. The third filtering layer 9,02 is used to finally filter the fine particulate matter in the waste gas. After the third-stage filtration, the fine particulate matter in the waste gas will also be effectively captured, ensuring that the waste gas is as clean as possible.

[0038] The pore diameter of the first filter layer 905 is larger than that of the second filter layer 903, and the pore diameter of the second filter layer 903 is larger than that of the third filter layer 902.

[0039] By setting filter layers with different pore diameters, step-by-step filtration of particulate matter in the waste gas can be achieved. The first filter layer 905 with a larger pore diameter first captures larger particulate matter, the second filter layer 903 with a smaller pore diameter further captures medium-sized particulate matter, and the third filter layer 902 with the smallest pore diameter captures the finest particulate matter, ensuring that the waste gas is as clean as possible after multi-stage filtration.

[0040] During use, the blower 8 is started, and air is sent into the rotary kiln main body 1 through the air inlet pipe 6. The airflow generated by the blower 8 enters the rotary kiln main body 1 through the air inlet pipe 6 and passes through the lining structure main body 10. The limestone contacts the spikes 11 in the rotary kiln. The spikes 11 help break up the limestone lumps and promote the uniform distribution of the materials in the rotary kiln. The airflow generated by the blower 8 helps the limestone to tumble, ensuring uniform heating of the materials.

[0041] Thus, although the present utility model has been described herein with reference to its specific embodiments, modifications are free, and various changes and substitutions are also within the above disclosure. And it should be understood that in some cases, some features of the present utility model will be adopted without corresponding use of other features without departing from the scope and spirit of the proposed utility model. Therefore, many modifications can be made to adapt a particular environment or material to the substantial scope and spirit of the present utility model. The present utility model is not intended to be limited to the specific terms used in the following claims and / or the specific embodiments disclosed as the best mode contemplated for carrying out the present utility model, but the present utility model will include any and all embodiments and equivalents falling within the scope of the appended claims. Thus, the scope of the present utility model will be determined only by the appended claims.

Claims

1. A refractory energy-saving lining structure for a lime rotary kiln, characterized in that Comprising: A lining structure main body (10), installed on the rotary kiln main body (1); A plurality of spikes (11), installed inside the lining structure main body (10), on the spikes (11), the spikes (11) are made of a high-efficiency heat transfer material, and the surface of the spikes (11) is coated with an anti-sticking coating; A blower (8), installed on the filtering mechanism (9); An air inlet pipe (6), with either end installed on the blower (8), and the other end installed on the rotary kiln main body (1) through a rotating head (5).

2. The refractory energy-saving lining structure of a lime rotary kiln according to claim 1, characterized in that: It further comprises: A bottom plate (4), connected to the rotary kiln main body (1) through a mounting frame (3); A detector (2), installed on the rotary kiln main body (1).

3. A refractory energy-saving inner lining structure of a lime rotary kiln according to claim 1, characterized in that: The lining structure main body (10) comprises: An inner layer (1003); An intermediate layer (1002), covering the surface of the inner layer (1003), the intermediate layer (1002) is made of a high-efficiency heat insulation material.

4. A refractory energy-saving lining structure for a lime rotary kiln according to claim 3, characterized in that: The lining structure main body (10) further comprises: An outer layer (1001), covering the surface of the intermediate layer (1002), the outer layer (1001) is made of a wear-resistant and high-temperature resistant material.

5. The refractory energy-saving lining structure of a lime rotary kiln according to claim 2, wherein: The filtering mechanism (9) comprises: A filtering box (901), installed on the bottom plate (4), the filtering box (901) is communicated with the blower (8) through a connecting pipe (7), and a through hole (906) for cooperating with the connecting pipe (7) is provided on the filtering box (901).

6. The refractory energy-saving lining structure of a lime rotary kiln according to claim 5, characterized in that: The filtering mechanism (9) further comprises: A first filtering layer (905), a second filtering layer (903) and a third filtering layer (902), the first filtering layer (905), the second filtering layer (903) and the third filtering layer (902) are all detachably installed inside the filtering box (90 7. A refractory energy-saving lining structure for a lime rotary kiln according to claim 6, characterized in that: ​

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