Special brush for detecting caking index
By designing a special brush for detecting the adhesion index using circular flexible bristles and micro-elastic pressure plates, the problem of uneven cleaning of the inner wall of the crucible was solved, the cleaning efficiency and effect were improved, and the inner wall of the crucible was protected.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XINXING DUCTILE IRON PIPES CO LTD
- Filing Date
- 2025-03-31
- Publication Date
- 2026-04-21
AI Technical Summary
The existing flat brushes do not have an even contact area when cleaning the inner wall of a cylindrical crucible, resulting in poor cleaning efficiency and effect, requiring repeated operation.
A special brush for detecting the adhesion index was designed, consisting of a circular flexible bristle and a circular pressing plate. The bristles are fixed to the handle by a rubber ring. The handle is made of hollow plastic. The pressing plate is micro-elastic and is used to make uniform contact with the inner wall of the crucible and adjust the shape of the coal sample.
It achieves uniform cleaning of the inner wall of the crucible, improves cleaning efficiency, reduces operation steps, avoids crucible wear, and meets standard shape requirements.
Smart Images
Figure CN224143103U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bituminous coal testing technology, specifically to a special brush for testing the adhesion index. Background Technology
[0002] In the field of bituminous coal caking index testing, coal samples need to be mixed with special anthracite and heated into coke before their caking ability is determined by a drum test.
[0003] After the coal and anthracite are mixed, some coal powder will remain on the inner wall of the crucible. It is necessary to use a brush to brush off the coal powder from the inner wall of the crucible. Most of the brushes used are traditional flat brushes. These brushes are suitable for cleaning or brushing flat surfaces. However, since the crucible is specified as a cylinder, the cross-section of its inner wall is also circular. Therefore, when using a traditional flat brush to scrape, the contact area between the brush and the inner wall of the crucible is not uniform. This results in uneven scraping force on the inner wall of the crucible. It is necessary to use the brush to scrape vertically and repeatedly along the crucible wall, and also to repeat this action multiple times along a ring. As a result, the cleaning efficiency and effect are not high. Utility Model Content
[0004] In view of this, the present invention provides a special brush for testing the adhesion index, which can make the contact area between the annular brush and the inner wall of the crucible more uniform, and also make the cleaning force on the inner wall of the crucible more uniform, so that the coal powder on the inner wall of the crucible can be scraped and cleaned in one go, thereby improving its cleaning efficiency and effect.
[0005] To solve the above-mentioned technical problems, this utility model provides a special brush for bonding index testing, including a handle and a cleaning component disposed on one side of the outer surface of the handle. The cleaning component has a circular cross-section and is fitted onto one side of the outer surface of the handle. The handle is used by the operator to hold and pick up the brush. The cleaning component consists of multiple flexible bristles, the roots of which are adhered to the circular surface of the handle by rubber rings, and the heads of the bristles extend outward to form a circular cleaning surface. After the handle enters the inner wall of the crucible, the bristles can closely contact the inner wall of the crucible, thereby scraping off the coal sample remaining on the inner wall of the crucible in one go by moving the handle, without repeated cleaning, thus improving cleaning efficiency and effectiveness.
[0006] The handle has a hollow cylindrical structure, allowing staff to observe the inside of the crucible through the hollow part of the handle in a well-lit position when cleaning, making it convenient for staff to observe the inside of the crucible while operating it.
[0007] The handle is made of plastic, which makes it lighter and easier to operate.
[0008] The lower end of the handle is fitted with a ring-shaped pressure plate by hot melt adhesive. The pressure plate is used to press the coal sample on the outer edge of the crucible. Because the pressure plate is ring-shaped, when the handle moves down into the crucible, the ring-shaped pressure plate can press down on the outer edge of the coal sample, so that the coal sample is in a state of low around the edges and high in the middle.
[0009] The cross-section of the press is curved outward from top to bottom. When the press is pressed down on the coal sample, it can scrape some of the coal powder residue on the inner wall of the crucible into the coal sample inside the crucible. The outer periphery of the coal sample is shaped by the inclined surface of the annular press, so that the coal sample is shaped into a state where the middle is high and the surrounding area is low. The end face of the press abuts against the inner wall of the crucible.
[0010] The vertical height between the lower and upper surfaces of the tablet is 1-2 mm, which allows the height between the center of the coal sample and the outer surface to be adjusted to 1-2 mm after the tablet is pressed down, resulting in higher accuracy and better compliance with regulations.
[0011] The tablet is made of micro-elastic plastic, and its elasticity prevents wear on the inner wall of the crucible.
[0012] In summary, compared with the prior art, this application includes at least one of the following beneficial technical effects:
[0013] 1. When this utility model is used, it adopts a flexible brush structure with a circular distribution. Its cleaning surface is evenly attached to the inner wall of the cylindrical crucible at 360°. Compared with the traditional flat brush, the circular brush covers the entire inner wall of the crucible in one go when moving vertically, avoiding repeated rotation or multiple scraping operations, and significantly improving cleaning efficiency.
[0014] 2. When using this utility model, the handle adopts a hollow cylindrical design, which allows light to pass through during the cleaning process, making it easy for the operator to observe the residual coal powder inside the crucible and the state of the tablet molding in real time.
[0015] 3. When using this utility model, the axial height difference of 1-2mm in the pressing process makes the coal powder form a standardized shape with a high center and low edges, eliminating the need for manual adjustment and reducing the complexity of operation.
[0016] 4. When using this utility model, the micro-elastic plastic material ensures the shaping accuracy while buffering the contact pressure with the inner wall of the crucible through elastic deformation, avoiding scratches or wear that may be caused by metal tools, and extending the service life of the crucible. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the main structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the structure of this utility model;
[0019] Figure 3 This is a schematic diagram of the structure of this utility model;
[0020] Figure 4 This is a schematic diagram of the structure of this utility model.
[0021] Explanation of reference numerals in the attached figures:
[0022] 100. Handle; 200. Brush bristles; 300. Tableting. Detailed Implementation
[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the accompanying drawings of the embodiments of this utility model. Figure 1-4 The technical solutions of the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.
[0024] A special brush for testing adhesion index, such as Figure 1 , Figure 2 and Figure 3 As shown: It includes a handle 100 and a cleaning component disposed on one side of the outer surface of the handle 100. The cleaning component has a circular cross-section and is fitted onto the outer side wall of the handle 100. The handle 100 is used by the operator to hold and pick up the crucible. The operator holds the handle 100 and moves the cleaning component on the surface of the handle 100 into the crucible for cleaning. When the cleaning component moves into the interior of the crucible, the circular surface of the cleaning component can closely abut against the inner side wall of the crucible. By moving the handle 100, the cleaning component scrapes off the coal sample remaining on the inner wall of the crucible.
[0025] Specifically, the cleaning component consists of multiple flexible bristles 200. The base of each bristle 200 is attached to the annular structure of the handle 100 via a commonly available rubber ring. The heads of the bristles 200 extend outward to form a circular cleaning surface. When the handle 100 enters the crucible, the heads of the bristles 200 can evenly contact the inner wall of the crucible, resulting in a more uniform cleaning force on the inner wall. The annular design of the bristles 200 expands the contact area with the inner wall of the crucible, allowing the residual coal sample on the inner wall of the crucible to be scraped off in one go by moving the handle 100, eliminating the need for repeated cleaning and improving cleaning efficiency and effectiveness.
[0026] Furthermore, the handle 100 is made of plastic, which makes the handle 100 lighter to operate and lower in manufacturing cost.
[0027] according to Figure 3 and Figure 4As shown, a ring-shaped pressure plate 300 is attached to the lower end of the handle 100 with hot melt adhesive. The end face of the pressure plate 300 contacts the inner wall of the crucible. The pressure plate 300 is used to press the coal sample on the outer edge of the crucible. According to regulations, in order to prevent the coal sample from overflowing during subsequent testing, the coal powder needs to be adjusted to a state where the center is higher and the edges are lower. While the operator moves the handle 100 down into the crucible for cleaning, the pressure plate 300 presses down on the coal powder on the outer edge of the crucible to adjust the coal powder to a state where the center is higher and the edges are lower. This eliminates the need for subsequent operators to adjust the coal powder again, reducing operation steps and improving work efficiency. After the adjustment is completed, if a small amount of coal powder remains on the pressure plate 300, since the coal powder is extremely light, it can be shaken off the pressure plate 300 and fall into the crucible by vibrating the handle 100.
[0028] Specifically, the cross-section of the press 300 is a ring structure that curves outward from top to bottom, making the cross-section of the press 300 inclined. When the press 300 presses down on the coal sample, it can first scrape some of the coal powder residue on the inner wall of the crucible into the coal sample inside the crucible. The outer periphery of the coal sample is shaped by the inclined surface of the press 300, causing the coal sample inside and outside the crucible to move towards the center, thus forming a coal sample with a high center and low periphery.
[0029] Specifically, the vertical axial height between the upper end face and the lower end face of the tablet 300 is 1-2mm, so that after the tablet 300 presses down on the coal sample, the vertical height between the horizontal plane of the center of the coal sample and the surrounding area of the coal sample is between 1-2mm, which is more accurate and more in line with the regulations.
[0030] Specifically, the handle 100 is a hollow cylindrical structure. When the operator presses the coal sample down with the pressing plate 300, they can observe the inside of the crucible through the hollow part of the handle 100 in a well-lit position, which makes it convenient for the operator to operate and observe at the same time.
[0031] Furthermore, the material of the tablet 300 is a micro-elastic plastic material. Since the lower end face of the tablet 300 contacts the inner wall of the crucible, the elasticity of the tablet 300 prevents it from making hard contact with the inner wall of the crucible when it is pressed down, thus preventing wear on the inner wall of the crucible.
[0032] How to use this utility model:
[0033] When it is necessary to clean the coal powder residue on the inner wall of the crucible, hold the handle 100 and move the bristles 200 on the surface of the handle 100 into the crucible, so that the ends of the bristles 200 are in close contact with the inner wall of the crucible. By moving vertically along the height direction of the crucible, and coordinating with axial rotation, the coal powder on the inner wall of the crucible can be cleaned. The circular design of the bristles 200 makes even contact with the inner wall of the crucible, so that the cleaning force on the inner wall of the crucible is more uniform and the contact range with the inner wall of the crucible is expanded. Thus, by moving the handle 100 vertically, the coal sample residue on the inner wall of the crucible can be scraped off in one go without repeated cleaning, improving cleaning efficiency and effect. After cleaning, if there is a small amount of coal powder on the bristles 200, the coal powder on the bristles 200 can be shaken off into the crucible by vibrating the handle 100.
[0034] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.
Claims
1. A special brush for testing adhesion index, characterized in that: The device includes a handle (100) and a cleaning component disposed on one side of the outer surface of the handle (100). The handle (100) is used by the operator to hold and pick up the device. The cleaning component has a circular cross-section and consists of multiple flexible bristles (200). The roots of the bristles (200) are fixed to the circular surface of the handle (100), and the heads of the bristles (200) extend outward to form a circular cleaning surface. After the handle (100) enters the inner wall of the crucible, the bristles (200) can closely contact the inner wall of the crucible.
2. The special brush for detecting a bonding index according to claim 1, wherein: The handle (100) is a hollow cylindrical structure.
3. A special brush for a stickiness index detector according to claim 2, characterized in that: The handle (100) is made of plastic.
4. The special brush for a stickiness index detector according to claim 1, wherein: The lower end face of the handle (100) is provided with a ring-shaped pressure plate (300), which is used to press the coal sample on the periphery inside the crucible.
5. A special brush for a stickiness index detector according to claim 4, characterized in that: The cross-section of the press (300) is curved outward from top to bottom, and the end face of the press (300) abuts against the inner wall of the crucible.
6. A special brush for a stickiness index detection according to claim 5, characterized in that: The axial height of the tablet (300) is 1-2 mm.
7. A special brush for a stickiness index detection according to claim 6, characterized in that: The tablet (300) is made of micro-elastic plastic.