Catalyst detection pretreatment device
The mechanical grinding technology of the catalyst detection pretreatment device solves the problems of time-consuming and labor-intensive catalyst crushing and dust generation, achieving efficient and environmentally friendly catalyst particle size treatment and improving the conversion rate of qualified samples.
Patent Information
- Application Number
- CN202423184790.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-23
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2034-12-23
AI Technical Summary
Current catalyst testing methods involve time-consuming and labor-intensive processes for crushing catalysts of the original particle size, consuming large amounts of sample, resulting in low conversion rates of qualified test samples, and also posing environmental and health hazards due to dust pollution.
The catalyst sample is obtained quickly by mechanical grinding using a catalyst detection pretreatment device. The device utilizes the mechanical grinding of the grinding core shaft and grinding core, combined with the adjustment of the gap between the inner and outer grinding cores by the limiting component. The device is made of materials such as stainless steel, cast iron, and ceramics, and features a dustproof design to protect the environment.
It achieves rapid, time-saving, and labor-saving catalyst particle size reduction, improves the conversion rate of qualified samples, avoids dust generation, and protects the environment and operator health.
Smart Images
Figure CN223897150U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a chemical equipment, and more particularly to a catalyst detection and pretreatment device. Background Technology
[0002] The accuracy and reliability of catalyst activity testing are crucial for catalyst research and development and industrial applications. Catalyst testing can provide important guidance for research and development; it can also help identify potential problems or defects in the product manufacturing process, enabling timely improvements to the production process and ensuring product quality and safety.
[0003] The core of catalyst activity testing is evaluating the catalyst's promoting effect on chemical reactions. In practical testing, industrial catalysts need to be pretreated to meet the testing requirements of laboratory equipment. Typically, the original particle size of the catalyst is crushed, and small particles within a specified particle size range are taken for testing. Crushing is usually done manually using ceramic or agate mortars. This method is time-consuming, labor-intensive, consumes large amounts of sample, and has a low conversion rate of qualified test samples. The process also generates a large amount of dust, which is harmful to the environment and human health. In summary, existing methods for obtaining small-particle catalysts are time-consuming, labor-intensive, consume large amounts of sample, and have a low conversion rate of qualified test samples. Utility Model Content
[0004] This invention provides a catalyst pretreatment device that solves the problem of crushing catalysts of the original particle size. Addressing the shortcomings of conventional processing methods, it employs mechanical grinding, which can process catalysts of different appearances and sizes. This allows operators to quickly obtain catalysts of the specified particle size, meeting the needs of laboratory testing. The technical solution is as follows:
[0005] A catalyst detection pretreatment device includes a dustproof chamber, a main body, and a collection chamber arranged sequentially from top to bottom. The main body is provided with a mating grinding shaft and a grinding core. The grinding core includes an inner grinding core fitted on the grinding shaft and an outer grinding core fixed to the inner wall of the main body. A limiting member is provided below the grinding shaft to adjust the height of the inner grinding core, thereby changing the gap between the inner and outer grinding cores.
[0006] The dustproof compartment is connected to the main body by magnetic attraction or snap-fit, and the top of the dustproof compartment is equipped with a dustproof cover.
[0007] The interior of the main body includes a feeding bin and a grinding core arranged vertically. The feeding bin is funnel-shaped, and its bottom is smoothly connected to the upper opening of the outer grinding core.
[0008] The outer grinding core, inner grinding core, and grinding core shaft are coaxially arranged.
[0009] The outer grinding core, inner grinding core, and grinding core shaft are made of one or more of the following materials: stainless steel, cast iron, and ceramic.
[0010] The main body fixes the grinding core shaft by a limiting device, which includes an upper fixing device and a lower fixing device with the same structure.
[0011] The grinding core shaft is provided with a limiting member at the bottom through a threaded engagement and a spring at the top. The spring and the limiting member allow the inner grinding core to move up and down within a limited range.
[0012] The limiting member is located between the lower bearing and the inner grinding core of the lower fixing device, and the spring is located between the upper bearing and the inner grinding core of the upper fixing device.
[0013] The outer shell of the catalyst detection pretreatment device is made of stainless steel, plastic or polycarbonate.
[0014] The catalyst detection and pretreatment device can be scaled up proportionally according to the size of the sample to be treated and the processing volume.
[0015] The main feature of this utility model is that by adjusting the limiting component, the gap between the outer grinding core and the inner grinding core can be changed, thereby obtaining processed products with different particle sizes.
[0016] The catalyst detection and pretreatment device crushes the catalyst through mechanical grinding. A crank handle drives the inner grinding core to rotate, enabling rapid screening of catalyst samples with suitable particle sizes. The device is simple to operate, saves time and labor, is highly efficient, generates no dust, and protects both the environment and the operator. The connections between components are simple, and disassembly is convenient. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the catalyst detection and pretreatment device.
[0018] Figure 2 This is a schematic diagram of the internal structure of the catalyst detection and pretreatment device;
[0019] Figure 3 This is a schematic diagram of the external appearance of the catalyst detection and pretreatment device;
[0020] Figure 4 This is a schematic diagram of the structure of the grinding core shaft. Detailed Implementation
[0021] like Figure 1As shown, the catalyst detection pretreatment device includes a dust cover, a main body 1, and a collection chamber 4 arranged sequentially from top to bottom. The main body 1 is equipped with a matching grinding shaft 5 and a grinding core. The top of the grinding shaft 5 is detachably connected to a crank handle 2, which can drive the grinding shaft 5 to rotate. The dust chamber is connected to the main body 1 by magnetic attraction or snap-fit, and a dust cover 3 is provided on the top of the dust chamber. The collection chamber 4 is connected to the main body 1 by magnetic attraction or snap-fit, facilitating the collection of processed samples.
[0022] Furthermore, a dustproof chamber can be omitted, and the dustproof cover 3 can be directly connected to the main body 1 via magnetic attraction or snap-fit, facilitating the addition of the sample to be processed and preventing dust or sample splashing during breakage. The dustproof cover 3 has a hole in its center to allow the crank handle 2 to connect to the grinding core shaft 5 and drive the grinding core shaft 5 to rotate.
[0023] The outer casing of the catalyst detection and pretreatment device can be made of stainless steel, plastic, polycarbonate, or a combination of multiple materials. Its shape is not limited. Figure 3 The triangle shape shown.
[0024] like Figure 2 As shown, the interior of the main body 1 includes a feeding bin and a grinding core arranged vertically. The feeding bin is funnel-shaped, with its lower part directly connected to the outer grinding core 6 of the grinding core. The bottom of the feeding bin is smoothly connected to the upper opening of the outer grinding core 6. The grinding core includes an outer grinding core 6 and an inner grinding core 7. The outer grinding core 6 is fixed to the inner wall of the main body 1 and embedded in the lower part of the feeding bin. The inner grinding core 7 is fitted on the grinding core shaft 5. There is a gap between the outer grinding core 6 and the inner grinding core 7. The grinding of the catalyst is achieved through the mutual rotation between the inner grinding core 7 and the outer grinding core 6.
[0025] Furthermore, the outer grinding core 6, the inner grinding core 7, and the grinding core shaft 5 are coaxially arranged, and the materials used for their manufacture can be one or more of stainless steel, cast iron, and ceramic.
[0026] Inside the main body 1, the grinding core shaft 5 is fixed by a limiting device. The limiting device includes an upper fixing device and a lower fixing device, and the upper fixing device and the lower fixing device have the same structure.
[0027] The upper fixing device includes an upper fixing rod 8 and an upper bearing 9. The inner ring of the upper bearing 9 is fixedly connected to the grinding core shaft 5, and the outer ring is installed and fixed to the inner side of the main body 1 through the upper fixing rod 8.
[0028] The lower fixing device includes a lower fixing rod 10 and a lower bearing 11. The inner ring of the lower bearing 11 is fixedly connected to the grinding core shaft 5, and the outer ring is installed and fixed to the inner side of the main body 1 through the lower fixing rod 10.
[0029] The inner grinding core 7 has a through hole in the middle of the grinding core shaft 5, and the inner grinding core 7 is sleeved on the grinding core shaft 5. A limiting member 13 is provided below the grinding core shaft 5 to adjust the height of the inner grinding core 7. The limiting member 13 is located between the lower bearing 11 and the inner grinding core 7 and is used to change the gap between the inner grinding core 7 and the outer grinding core 6. A spring 12 is installed between the upper bearing 9 and the inner grinding core 7. Through the action of the spring 12 and the limiting member 13, the inner grinding core 7 can move up and down to a limited extent.
[0030] Combination Figure 4 As shown, the grinding core shaft 5 is cylindrical, and the cross-section of the top is a regular polygon, preferably a square. The top of the grinding core shaft 5 is connected to the crank handle 2, so that the crank handle 2 can drive the grinding core shaft 5 to rotate.
[0031] The grinding core shaft 5 is provided with a thread 14 that cooperates with the limiting member 13. By rotating the limiting member 13, the limiting member 13 can move up and down through the thread, thereby adjusting the position of the inner grinding core 7 above the limiting member 13 and changing the gap between the inner grinding core 7 and the outer grinding core 6.
[0032] The technical solution of the present invention will be described in detail below through specific embodiments.
[0033] Sample A: A cylindrical catalyst, commonly Φ5*(4~6) mm, which needs to be crushed into irregular shapes with a particle size of 0.425~1.18 mm for testing.
[0034] Sample B: A plum blossom-shaped catalyst, commonly 9-15 mm in size, which needs to be crushed into irregular shapes with a particle size of 3.35-4.00 mm for testing.
[0035] Sample C: An extruded catalyst, commonly Φ3 mm in size, which needs to be crushed into irregular shapes with a particle size of 0.85–1.18 mm for testing.
[0036] One hundred grams of the above-mentioned sample to be processed were crushed using a ceramic mortar and this invention, respectively. After sieving, the qualified samples were weighed, and the results are as follows:
[0037] Table 1. Results of catalyst crushing treated with mortar.
[0038]
[0039] Table 2. Catalyst crushing results processed by this unit
[0040]
[0041] It is evident that the pass rate of this utility model has significantly increased.
[0042] This invention can be scaled up proportionally according to the size of the sample to be processed and the processing volume.
[0043] The catalyst detection and pretreatment device crushes the catalyst through mechanical grinding. A crank handle drives the inner grinding core to rotate, enabling rapid screening of catalyst samples with suitable particle sizes. The device is simple to operate, saves time and labor, is highly efficient, generates no dust, and protects both the environment and the operator. The connections between components are simple, and disassembly is convenient.
Claims
1. A catalyst detection pretreatment device, characterized in that: The catalyst detection pretreatment device includes a dustproof chamber, a main body, and a collection chamber arranged sequentially from top to bottom. The main body is provided with a matching grinding core shaft and a grinding core. The grinding core includes an inner grinding core fitted on the grinding core shaft and an outer grinding core fixed to the inner wall of the main body. A limiting component is provided below the grinding core shaft to adjust the height of the inner grinding core, thereby changing the gap between the inner and outer grinding cores.
2. The catalyst detection and pretreatment device according to claim 1, characterized in that: The dustproof compartment is connected to the main body by magnetic attraction or snap-fit, and the top of the dustproof compartment is equipped with a dustproof cover.
3. The catalyst detection and pretreatment device according to claim 1, characterized in that: The interior of the main body includes a feeding bin and a grinding core arranged vertically. The feeding bin is funnel-shaped, and its bottom is smoothly connected to the upper opening of the outer grinding core.
4. The catalyst detection pretreatment device according to claim 1, characterized in that: The outer grinding core, inner grinding core, and grinding core shaft are coaxially arranged.
5. The catalyst detection pretreatment device according to claim 4, characterized in that: The outer grinding core, inner grinding core, and grinding core shaft are made of one or more of the following materials: stainless steel, cast iron, and ceramic.
6. The catalyst detection pretreatment device according to claim 1, characterized in that: The main body fixes the grinding core shaft by a limiting device, which includes an upper fixing device and a lower fixing device with the same structure.
7. The catalyst detection pretreatment device according to claim 6, characterized in that: The grinding core shaft is provided with a limiting member at the bottom through a threaded engagement and a spring at the top. The spring and the limiting member allow the inner grinding core to move up and down within a limited range.
8. The catalyst detection pretreatment device according to claim 7, characterized in that: The limiting member is located between the lower bearing and the inner grinding core of the lower fixing device, and the spring is located between the upper bearing and the inner grinding core of the upper fixing device.
9. The catalyst detection pretreatment device according to claim 1, characterized in that: The outer shell of the catalyst detection pretreatment device is made of stainless steel, plastic or polycarbonate.
10. The catalyst detection pretreatment device according to claim 1, characterized in that: The catalyst detection and pretreatment device can be scaled up proportionally according to the size of the sample to be treated and the processing volume.