A cordierite honeycomb ceramic scrap recycling system and method

Abstract

The application provides a cordierite honeycomb ceramic excess material recycling system and method. The system is arranged between a workbench and a feeding bin, and comprises a plurality of holding tanks, an XRD analyzer, a grinding device, a particle size analyzer, an XRF component analyzer and a storage bin, and the systems are connected through conveyors, so that automatic transportation of the materials can be realized. The recycling system provided by the application can automatically classify and recycle the excess materials through cooperation between the devices, so that the raw material cost is saved, and the automation level of the production line is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cordierite honeycomb ceramics, and particularly relates to a cordierite honeycomb ceramic excess material recycling system and method. BACKGROUND

[0002] Cordierite is a high-value refractory material, and is applied in the fields of metallurgy, electronics, automobiles, chemical industry, environmental protection and the like. At present, preparation of high-purity cordierite honeycomb ceramics is a difficulty in industrial production. In actual production, due to the fluctuation of raw material components and the limitation of process factors, defective pieces are inevitably generated in the production process. Meanwhile, a large number of cordierite test pieces with low purity are also easily generated in the initial stage of process debugging and optimization. In addition, some corner materials are also generated in the cutting stage of the test pieces. These excess materials are irregular in shape, and even the phases and components are different. In the recycling process, manual sorting is required for classification, and the recycling efficiency is low, the difficulty is great, and the automation level is low, so that the raw material cost and labor cost in the production process of cordierite honeycomb ceramics are high. SUMMARY

[0003] The present application aims to overcome the deficiencies in the prior art, and provides a cordierite honeycomb ceramic excess material recycling system and method. The purpose is to realize automatic classification and recycling of cordierite honeycomb ceramic excess materials and reduce product cost.

[0004] Specifically, in a first aspect, a cordierite honeycomb ceramic excess material recycling system is provided, which is arranged between a workbench and a feeding bin and comprises a multi-stage containing tank, an XRD analyzer, a grinding device, a particle size analyzer, an XRF analyzer and a storage bin. The components are connected through conveyors, and the materials are automatically transported. The multi-stage containing tank comprises a first-stage containing tank, a second-stage containing tank and a third-stage containing tank. The XRD analyzer and the XRF analyzer are arranged between the first-stage containing tank and the second-stage containing tank. The grinding device is arranged after the second-stage containing tank. The particle size analyzer is arranged between the grinding device and the third-stage containing tank. The storage bin is arranged after the third-stage containing tank.

[0005] Further, the excess material is one or more of corner materials after cutting of the cordierite honeycomb ceramics on the workbench, tail materials after production and defective pieces.

[0006] Further, the multi-stage containing tank comprises a first-stage containing tank, a second-stage containing tank and a third-stage containing tank. The first-stage containing tank is single or multiple containing tanks arranged in parallel. The second-stage containing tank is single or multiple containing tanks arranged in parallel. The third-stage containing tank is single or multiple containing tanks arranged in parallel.

[0007] Further, the grinding device is one or more of a ball mill, an air flow pulverizer, a wheel mill, a vibration mill and a turbo pulverizer.

[0008] Further, the storage bin is a cordierite clinker bin, and one or more of the cordierite raw material bins.

[0009] In another aspect, a method for recycling cordierite honeycomb ceramic waste is performed by the cordierite honeycomb ceramic waste recycling system of the first aspect, and the method comprises the following steps: the waste generated in the process of preparing the cordierite honeycomb ceramic is introduced into a first containing tank by a conveying device from a workbench, after the waste is analyzed and characterized by XRD and XRF analyzers in terms of phase and composition, the waste is introduced into a second containing tank, then is conveyed to a grinding device to be crushed into powder, after the powder is detected by a particle size analyzer to meet the conditions, the powder is introduced into a third containing tank, and finally is collected in a storage bin for secondary production.

[0010] The cordierite honeycomb ceramic waste recycling system has the following advantages:

[0011] (1) The cordierite honeycomb ceramic waste recycling system is provided, which can realize automatic classification and recycling of waste, effectively reduce raw material cost, and provide work efficiency.

[0012] (2) The system is compatible with various material testing instruments, can provide reliable basis for recycling of different types of waste, is conducive to improvement of production automation level, and has strong applicability.

[0013] (3) The system has low equipment investment, is convenient for process amplification, and is conducive to scale production application and popularization.

[0014] (4) The cordierite clinker and cordierite raw material can be obtained according to actual conditions, the cordierite clinker and the cordierite raw material can be directly sold or used for cordierite honeycomb ceramic production again, the value of the waste is improved, and the application approach is widened. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a structure schematic diagram of the cordierite honeycomb ceramic waste recycling system provided in Embodiment 1 of the present application;

[0016] Figure 2 is a structure schematic diagram of the cordierite honeycomb ceramic waste recycling system provided in Embodiment 2 of the present application;

[0017] Figure 3 is a structure schematic diagram of the cordierite honeycomb ceramic waste recycling system provided in Embodiment 3 of the present application;

[0018] Figure 4 is a structure schematic diagram of the cordierite honeycomb ceramic waste recycling system provided in Embodiment 4 of the present application;

[0019] Figure 5 is a structure schematic diagram of the cordierite honeycomb ceramic waste recycling system provided in Embodiment 5 of the present application;

[0020] Explanation of reference signs: 1 is a first holding tank, 2 is an XRF analyzer, 3 is an XRD analyzer, 4 is a second holding tank, 41 is a second holding tank A, 42 is a second holding tank B, 5, 51, 52 are grinding devices, 6, 61, 62 are particle size analyzers, 7 is a third holding tank, 71 is a third holding tank C, 72 is a third holding tank D, 8 is a storage bin, 81 is a cordierite raw material bin, and 82 is a cordierite clinker bin. DETAILED DESCRIPTION

[0021] The application will be further described below in conjunction with examples. The following examples are only used to help understand the application. It should be pointed out that for ordinary skilled in the art, without departing from the principles of the application, a number of improvements and modifications can be made to the application, and these improvements and modifications also fall within the scope of protection of the claims of the application. Example 1

[0022] A cordierite honeycomb ceramic waste recycling system is shown in Figure 1 The system is arranged between a workbench and a feed bin and includes multiple holding tanks, i.e., a first holding tank 1, a second holding tank 4, and a third holding tank 7, an XRD analyzer 3, a grinding device 5, a particle size analyzer 6, an XRF analyzer 2, and a storage bin 8. The components are connected by conveyors, and the materials are automatically transported. The XRD analyzer 3 is arranged between the first holding tank 1 and the second holding tank 4, and the particle size analyzer 6 is arranged between the grinding device 5 and the third holding tank 7.

[0023] The waste generated during the preparation of cordierite honeycomb ceramics enters the first holding tank 1 through the conveying device. After the phase and composition of the waste are analyzed and characterized by the XRD analyzer 2 and the XRF analyzer 2, the waste enters the second holding tank 4 and is then conveyed to the grinding device 5 to be crushed into powder. After the powder is detected by the particle size analyzer 6 to meet the conditions, the powder enters the third holding tank 7 and is finally collected in the storage bin 8 for secondary production, thereby completing the recycling. Example 2

[0024] A cordierite honeycomb ceramic waste recycling system is shown in Figure 2 The system is arranged between a workbench and a feed bin and includes multiple holding tanks, i.e., a first holding tank 1, a second holding tank 4, and a third holding tank 7, an XRD analyzer 3, a grinding device 5, and a particle size analyzer 6. The components are connected by conveyors, and the materials are automatically transported. The XRD analyzer 3 is arranged between the first holding tank 1 and the second holding tank 4, and the particle size analyzer 6 is arranged between the grinding device 5 and the third holding tank 7.

[0025] The excess material generated in the preparation process of cordierite honeycomb ceramics enters the first holding tank 1 through the conveying device, and the XRD analyzer 2 determines that the excess material is composed of cordierite phase with less impurities, which can be directly crushed into powder through the second holding tank 4 and the grinding device 5, and then stored in the third holding tank 7 after meeting the conditions detected by the particle size analyzer 6, and finally transported to the feed bin as seed crystals and mixed with other raw materials according to a certain ratio for the preparation of subsequent cordierite honeycomb ceramics, realizing the reuse of excess material. Example 3

[0026] A cordierite honeycomb ceramic excess material recycling system is shown in Figure 3 The system is the same as example 2, the only difference is that the powder obtained by crushing the grinding device 5 meets the conditions detected by the particle size analyzer 6, and is transported to the cordierite clinker bin 82 through the third holding tank 7. The cordierite clinker itself is also a high-value material, which can be directly sold, completing the recycling. Example 4

[0027] A cordierite honeycomb ceramic excess material recycling system is shown in Figure 4 The system is set between the workbench and the feed bin, including multiple holding tanks, namely the first holding tank 1, the second holding tank 4, the third holding tank 7, the XRD analyzer 3, the grinding device 5, the particle size analyzer 6, the XRF analyzer 2 and the cordierite raw material bin 81. Each component is connected by a conveyor for automatic transportation of materials. The XRD analyzer 3 and the XRF analyzer 2 are arranged between the first holding tank 1 and the second holding tank 4, and the particle size analyzer 6 is arranged between the grinding device 5 and the third holding tank 7.

[0028] The excess material generated in the preparation process of cordierite honeycomb ceramics enters the first holding tank 1 through the conveying device, and the XRD analyzer 3 determines that the excess material does not contain cordierite phase or contains low cordierite phase. After the composition of the excess material is characterized by the XRF analyzer 2 again, it is found that the main element ratio is consistent with that of cordierite, and then it can enter the second holding tank 4, and then be transported to the grinding device 5 to be crushed into powder. After meeting the conditions detected by the particle size analyzer 6, it can be stored in the cordierite raw material bin 81 through the third holding tank 7, as the raw material for the preparation of subsequent cordierite honeycomb ceramics, realizing the reuse of excess material. Example 5

[0029] A cordierite honeycomb ceramic excess material recycling system is shown in Figure 5 The system is set between the workbench and the feed bin, including multiple holding tanks, namely the first holding tank 1, the second holding tank A 41, the second holding tank B 42, the third holding tank C 71, the third holding tank D 72, the XRD analyzer 3, the grinding devices 51, 52, the particle size analyzers 61, 62, the XRF analyzer 2, the cordierite clinker bin 81 and the cordierite raw material bin 82. Each component is connected by a conveyor for automatic transportation of materials.

[0030] The excess material generated in the preparation process of cordierite honeycomb ceramic enters the first holding tank 1 through the conveying device, and after passing through the XRD analyzer 3, it is determined that the excess material is composed of cordierite phase with less impurities, which can enter the grinding device 52 through the second holding tank B 42 to be crushed into powder, and after passing through the particle size analyzer 62 to meet the conditions, it is transported to the cordierite clinker bin 82 through the third holding tank D 72.

[0031] And after passing through the XRD analyzer 3, it is determined that the excess material does not contain cordierite phase or the cordierite phase is low, and it needs to be characterized again by the XRF analyzer 2. After finding that the main component ratio is consistent with cordierite, it can enter the second holding tank A 41, and then be transported to the grinding device 51 to be crushed into powder. After passing through the particle size analyzer 61 to meet the conditions, it can be stored in the cordierite raw material bin 81 through the third holding tank C 71.

[0032] The powder in the cordierite clinker bin 82 and the cordierite raw material bin 81 can be used for secondary production or directly sold according to different situations. The system is suitable for continuous operation system, relies on the material testing system to provide classification basis, implements classification, respectively stores, and selects the recycling way according to the actual situation. The system greatly reduces the labor intensity, improves the utilization rate of raw materials, and is conducive to improving the automation level of production.

Claims

1. A method for recycling cordierite honeycomb ceramic scrap, characterized by, The method is executed by using a cordierite honeycomb ceramic waste recycling system, and the method comprises the following processes: waste generated in a cordierite honeycomb ceramic preparation process enters a first containing tank through a conveying device, it is determined by an XRD analyzer that the waste is composed of a cordierite phase and has less impurities, the waste enters a grinding device to be crushed into powder through a second containing tank B, and after meeting the conditions detected by a particle size analyzer, the waste is conveyed to a cordierite clinker tank through a third containing tank D; If the waste does not contain a cordierite phase or contains a low cordierite phase after being analyzed by the XRD analyzer, the waste needs to be characterized by an XRF analyzer again, and after it is found that the main component ratio of the waste is consistent with that of the cordierite, the waste enters the second containing tank A and is then conveyed to the grinding device to be crushed into powder, and after meeting the conditions detected by the particle size analyzer, the waste is stored in the cordierite raw material tank through the third containing tank C. The cordierite honeycomb ceramic waste recycling system is arranged between a workbench and a feeding tank, comprises multiple containing tanks, an XRD analyzer, a grinding device, a particle size analyzer, an XRF analyzer and a storage tank, is connected through conveyors, and automatically transports materials.

2. The method of claim 1, wherein the method further comprises: The waste is one or more of leftover materials after cutting, tail materials after production and defective parts of the cordierite honeycomb ceramic on the workbench.

3. The method of claim 1, wherein the method further comprises: The first containing tank is a single containing tank or multiple containing tanks arranged in parallel; the second containing tank is a single containing tank or multiple containing tanks arranged in parallel; and the third containing tank is a single containing tank or multiple containing tanks arranged in parallel. ​ 4. The method of claim 1, wherein the method further comprises: The grinding device is one or more of a ball mill, an airflow pulverizer, a wheel grinder, a vibration mill and a turbo pulverizer.

5. The method of claim 1, wherein the method further comprises: The storage tank is one or more of a cordierite clinker tank and a cordierite raw material tank. ​

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