Raymond mill discharge port sampling device
By using fully enclosed connecting pipes and sampling devices, the sealing problem of the Raymond mill outlet was solved, enabling efficient and accurate automated sampling, which improved production efficiency and environmental safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-29
- Publication Date
- 2026-03-06
AI Technical Summary
The existing Raymond mill has an inadequately sealed discharge port, leading to material leakage and dust generation, which affects production efficiency and the environment, and makes it difficult to perform convenient sampling operations.
Design a fully enclosed connecting pipe and sampling device, including a rigid sleeve, a sampling shovel and a butterfly valve, combined with a sealing ring and a linear drive device to achieve sealing and automated sampling.
It effectively prevents material leakage, improves sampling accuracy and efficiency, enhances device sealing, enables automated and timed sampling, and improves production safety and convenience.
Smart Images
Figure CN223976896U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of powder production equipment technology, specifically to a sampling device for the discharge port of a Raymond mill. Background Technology
[0002] The main functions of silicon-titanium powder as a fertilizer include promoting plant growth, increasing crop yield and quality, and enhancing crop disease resistance and adaptability. Silicon-titanium powder can promote root development, improve the plant's ability to absorb and utilize nutrients, thereby increasing crop yield and quality. It can also enhance crop disease resistance, reduce the occurrence of diseases, and ensure crop growth and yield.
[0003] The process of producing silicon-titanium powder in the factory involves ball milling silicon- and titanium-containing ores into a slurry using a ball mill, then removing most of the water using a filter press to make mud cakes. After the mud cakes are dried, they are processed into fine powder using a Raymond mill and can be used directly as fertilizer.
[0004] The Raymond mill is a high-fineness powder processing device. During operation, the material to be pulverized is fed into the mill through the feed hopper on the side of the casing. The grinding rollers, suspended on the main unit's spider frame, revolve around a vertical axis while simultaneously rotating on their own axis. Due to centrifugal force during rotation, the grinding rollers swing outwards, pressing tightly against the grinding ring. A shovel scoops up the material and delivers it between the grinding rollers and the grinding ring, where the rolling and crushing action of the rollers achieves the purpose of pulverizing the material. After grinding, a blower blows air into the main unit casing, agitating the powder. The powder is then sorted by an analyzer located above the grinding chamber. Material that is too coarse falls back into the grinding chamber for regrinding, while material of the correct fineness enters the cyclone collector with the airflow. After collection, the powder is discharged through the outlet, becoming the finished product. The airflow returns to the blower through the return air pipe at the top of the large cyclone collector. The airflow path is circulated and flows under negative pressure. The increased airflow in the circulating airflow path is discharged through the exhaust pipe between the blower and the main unit, entering the small cyclone collector for purification.
[0005] Raymond mills operate under negative pressure. To ensure the output and product quality of the equipment, it is essential to maintain good overall sealing.
[0006] In existing technology, all feed inlets are made of canvas with flexible, movable connections for easy sampling from each mill's feed inlet. However, inadequate sealing easily leads to smoke and material leakage, resulting in significant material loss. Furthermore, because Raymond mills process ultrafine powders, the incomplete seal causes substantial dust generation at the feed inlet, impacting the workshop environment. Since sampling must be performed at this location, and the internal airflow is under negative pressure during operation, it is crucial to ensure both excellent overall sealing of the equipment during operation and convenient sampling from the feed inlet. Utility Model Content
[0007] In view of this, this application provides a sampling device for the discharge port of a Raymond mill, which has a reasonable structure, tight sealing, and can perform manual or unmanned automatic timed sampling, greatly improving production efficiency.
[0008] According to one aspect of this application, one embodiment provides a Raymond mill outlet sampling device, including a connecting pipe and a sampling device;
[0009] The connecting pipe is a fully enclosed pipe, with the upper end connected to the powder outlet of the cyclone collector and the lower end being the material outlet;
[0010] The sampling device includes a sleeve and a sampling shovel. The middle section of the sleeve is provided with a protruding triangular sampling port. The sampling shovel has a shovel handle and a shovel. The front end of the shovel handle has a U-shaped shovel lug. The shovel is hinged to the U-shaped shovel lug at the front end of the shovel handle. The shovel is located inside the U-shaped shovel lug and can rotate freely around the hinge. The length of the shovel handle is greater than the length of the sleeve. The sampling shovel passes through the sleeve and can slide inside the sleeve.
[0011] The sleeve of the sampling device passes through the side wall of the connecting pipe and is inserted into the connecting pipe, with the sampling port on the sleeve located on the outside of the connecting pipe.
[0012] Furthermore, the connecting pipe is a rigid, fully enclosed pipe.
[0013] Furthermore, butterfly valves are installed on the upper and lower sides of the sampling device on the connecting pipe.
[0014] Furthermore, the sampling port on the sleeve has a threaded opening, and the sample bottle can be screwed onto the sampling port to prevent powder from flying around.
[0015] Furthermore, the sampling shovel can extend out of the sleeve to collect powder. The maximum distance it extends out of the sleeve is less than the length of the shovel, so that part of the shovel remains inside the sleeve, preventing the shovel from getting stuck at the sleeve opening due to free rotation and losing its sampling ability.
[0016] Furthermore, a sealing ring is provided inside the sleeve, and the shovel rod passes through the sealing ring, which is located at the port of the sleeve outside the connecting pipe.
[0017] Furthermore, the sleeve is inclined relative to the horizontal plane at an angle α to the connecting pipe, with one end of the sleeve outside the connecting pipe being higher than the other end of the sleeve inside the connecting pipe, and the inclination angle α = 1-30°.
[0018] Furthermore, the sampling device also includes a linear drive device, which is connected to the shovel handle of the sampling shovel to achieve automatic sampling. The linear drive device is fixedly mounted on the sleeve or connecting pipe.
[0019] Furthermore, the linear drive device is connected to a timing device, which enables timed sampling.
[0020] Furthermore, the linear drive device is one of a cylinder, a hydraulic cylinder, an electric telescopic rod, a linear slide module, and a gear and rack module.
[0021] The beneficial effects of this utility model are as follows:
[0022] 1. The sampling device at the discharge port of a Raymond mill of this utility model effectively prevents material leakage during the sampling process and improves sampling accuracy by using a fully enclosed connecting pipe and sampling device.
[0023] 2. The sampling device at the discharge port of a Raymond mill of this utility model has a simple structure and is easy to operate. It can quickly and accurately complete the sampling operation and improve work efficiency.
[0024] 3. The sampling device at the discharge port of a Raymond mill according to this utility model further enhances the sealing performance and safety of the device by setting up a butterfly valve, a sealing ring and other structures.
[0025] 4. The application of a linear drive device and a timing control device in the sampling device at the discharge port of a Raymond mill of this utility model realizes the automation and timing of the sampling operation, and improves the convenience and accuracy of sampling. Attached Figure Description
[0026] Figure 1 This is a schematic diagram of one embodiment of the present invention;
[0027] Figure 2 This is a cross-sectional view of the sampling device of this utility model;
[0028] Figure 3 for Figure 2 Enlarged schematic diagram of part A in the middle;
[0029] Figure 4 This is a schematic diagram of another embodiment of the present invention.
[0030] In the diagram: 1. Connecting pipe; 2. Sampling device; 21. Sleeve; 211. Sampling port; 22. Sampling shovel; 221. Shovel handle; 222. U-shaped shovel lug; 223. Shovel; 23. Sealing ring; 24. Linear drive device; 3. Butterfly valve. Detailed Implementation
[0031] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments. Similar elements in different embodiments are referred to by related similar element reference numerals. In the following embodiments, many details are described to facilitate a better understanding of the present application. However, those skilled in the art will readily recognize that some features may be omitted in different situations, or may be replaced by other elements, materials, or methods. In some cases, certain operations related to the present application are not shown or described in the specification. This is to avoid obscuring the core parts of the present application with excessive description. For those skilled in the art, detailed description of these related operations is not necessary; they can fully understand the related operations based on the description in the specification and general technical knowledge in the art.
[0032] Furthermore, the features, operations, or characteristics described in the specification can be combined in any suitable manner to form various embodiments, and the operational steps involved in each embodiment can also be rearranged or adjusted in a manner that is obvious to those skilled in the art. Therefore, the specification and drawings are only for clearly describing a particular embodiment and do not imply that they represent the necessary components and / or order.
[0033] The serial numbers assigned to components in this document, such as "first" and "second," are used only to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages).
[0034] Example 1:
[0035] like Figure 1 , Figure 2 and Figure 3 As shown, one embodiment provides a sampling device for the discharge port of a Raymond mill, including a connecting pipe 1 and a sampling device 2;
[0036] The connecting pipe 1 is a rigid, fully enclosed pipe, such as a fully enclosed connecting pipe 1 made of stainless steel. The upper end is connected to the powder outlet of the cyclone collector, and the lower end is the material outlet. The rigid, fully enclosed pipe allows the powder to pass through the pipe smoothly without obstructing the powder.
[0037] The sampling device 2 includes a sleeve 21 and a sampling shovel 22;
[0038] The middle section of the sleeve 21 is provided with a protruding triangular sampling port 211. The sampling port 211 has an external thread, and the sample bottle can be screwed onto the sampling port 211. The powder sample falls into the sample bottle through the sampling port 211, which can prevent the powder from flying around.
[0039] The sampling shovel 22 has a shovel rod 221 and a shovel 223. The front end of the shovel rod 221 has a U-shaped shovel lug 222. The shovel 223 is hinged to the U-shaped shovel lug 222 at the front end of the shovel rod. The shovel 223 is located inside the U-shaped shovel lug 222 and can rotate freely around the hinge. The length of the shovel rod 221 is greater than the length of the sleeve 21.
[0040] The sampling shovel 22 is inserted into the sleeve 21 and can slide inside the sleeve 21. The sampling shovel 22 can extend out of the sleeve 21 to collect powder. The maximum distance of the shovel 223 extending out of the sleeve 21 is less than the length of the shovel 223, that is, a part of the shovel 223 is left inside the sleeve 21 to prevent the shovel 21 from getting stuck at the opening of the sleeve 21 due to free rotation and losing its sampling ability.
[0041] A sealing ring 23 is provided inside the sleeve 21, and the shovel 22 passes through the sealing ring 23. The sealing ring 23 is located at the port of the sleeve 21 outside the connecting pipe 1.
[0042] The sleeve 21 of the sampling device 2 passes through the side wall of the connecting pipe 1 and is inserted into the connecting pipe 1. The sampling port 211 on the sleeve 21 is located outside the connecting pipe 1.
[0043] The sleeve 21 is inclined relative to the horizontal plane on the connecting pipe 1 at an angle of α. One end of the sleeve 21 outside the connecting pipe 1 is higher than the other end of the sleeve 21 inside the connecting pipe 1, with an inclination angle of α=5°. The inclined sleeve 21 has two advantages: first, the powder is less likely to fall directly into the sleeve 21; second, even if the powder on the shovel 223 falls into the sleeve 21, because the sleeve 21 is inclined, the powder that fell into the sleeve 21 will fall out of the sleeve 21 again under the vibration of the machine and the movement of the sampling shovel 22.
[0044] The connecting pipe 1 is equipped with butterfly valves 3 on the upper and lower sides of the sampling device 2. After the container receiving material at the outlet of the connecting pipe 1 is full, the butterfly valves 3 can be closed to replace the container and avoid powder spillage and waste. The receiving container can be a ton bag or other container.
[0045] This utility model discloses a sampling device for the discharge port of a Raymond mill. During sampling, the operator holds a shovel handle and pushes it inward, allowing the shovel to protrude from the sleeve opening. After a period of time, powder accumulates on the shovel. Then, the shovel handle is pulled back. When the shovel moves to the sampling port, it automatically rotates and tilts under the action of gravity, causing the powder on the shovel to fall from the sampling port into the sample bottle, thus achieving sampling. At the same time, the rotation of the shovel can prevent it from being pulled out further.
[0046] Example 2:
[0047] like Figure 4As shown, this embodiment is an improvement on the first embodiment. A linear drive device 24, such as an electric telescopic rod, is added to the sampling device 2. The linear drive device 24 is connected to the handle 221 of the sampling shovel 22 on the outside of the connecting pipe 1. The electric telescopic rod is fixedly installed on the connecting pipe 1 and is parallel to the sleeve 21. The moving distance of the electric telescopic rod is adjusted to the distance between the shovel 223 of the sampling shovel 22 and the opening of the sleeve 21. The electric telescopic rod is connected to a timing control device, such as a timer, which can realize timed start-up and thus achieve automatic sampling.
[0048] This utility model discloses a sampling device for the discharge port of a Raymond mill. In this embodiment, a linear drive device is used to replace the manual sampling shovel. By setting a timer, sampling can be performed periodically at regular intervals, realizing the automation and unmanned operation of sampling, and improving the convenience and accuracy of sampling.
[0049] The above-described specific examples are for illustrative purposes only and are not intended to limit the scope of this invention. Those skilled in the art to which this invention pertains can make various simple deductions, modifications, or substitutions based on the concept of this invention.
Claims
1. A Raymond mill discharge sampling device characterized by: It comprises a connecting pipe (1) and a sampling device (2); The connecting pipe (1) is a fully-closed pipe, the upper end of which is connected with the powder outlet of the cyclone collector, and the lower end is the discharge port. The sampling device (2) comprises a sleeve (21) and a sampling shovel (22), the middle section of the sleeve (21) is provided with a protruding triangular sampling port (211), the sampling shovel (22) has a shovel rod (221) and a shovel (223), the front end of the shovel rod (221) has a U-shaped shovel lug (222), the shovel (223) is hinged on the U-shaped shovel lug (222) at the front end of the shovel rod, the shovel (223) is located in the U-shaped shovel lug (222), the length of the shovel rod (221) is greater than the length of the sleeve (21), and the sampling shovel (22) is inserted into the sleeve (21). The sleeve (21) of the sampling device (2) penetrates through the side wall of the connecting pipe (1) and is inserted into the connecting pipe (1), and the sampling port (211) on the sleeve (21) is located outside the connecting pipe (1).
2. The Raymond mill discharge sampling device of claim 1, wherein: The connecting pipe (1) is a hard fully-closed pipe.
3. The Raymond mill discharge sampling device of claim 1, wherein: The connecting pipe (1) is provided with a butterfly valve (3) on each side of the sampling device (2).
4. The Raymond mill discharge sampling device of claim 1, wherein: The sampling port (211) on the sleeve (21) has a threaded port.
5. The Raymond mill discharge sampling device of claim 1, wherein: The sampling shovel (22) can extend out of the sleeve (21), and the maximum distance of the extension out of the sleeve (21) is less than the length of the shovel (223).
6. The Raymond mill discharge sampling device of claim 1, wherein: A sealing ring (23) is arranged in the sleeve (21), the shovel rod (221) penetrates through the sealing ring (23), and the sealing ring (23) is located at the port part of the sleeve (21) outside the connecting pipe (1).
7. The Raymond mill discharge sampling device of claim 1, wherein: The sleeve (21) is arranged on the connecting pipe (1) in an inclined manner relative to the horizontal plane, the included angle is α, one end of the sleeve (21) outside the connecting pipe (1) is higher than the other end of the sleeve (21) inside the connecting pipe (1), and the inclination angle α is 1-30°.
8. The Raymond mill discharge sampling device of claim 1, wherein: The sampling device (2) further comprises a linear driving device (24), the linear driving device (24) is connected with the shovel rod (221) of the sampling shovel (22), and the linear driving device (24) is fixedly arranged on the sleeve (21) or the connecting pipe (1).
9. A Raymond mill discharge sampling device according to claim 8, characterised in that: The linear driving device (24) is connected with a timing control device.
10. A Raymond mill discharge sampling device according to claim 8 or 9, characterised in that: The linear driving device (24) is one of a pneumatic cylinder, an oil cylinder, an electric telescopic rod, a linear slide table module and a gear and rack module.