Cleaning device for mixed division machine
By setting a cleaning device for heating part, rotating shaft and stirring scraper in the funnel of the shrinking extension, the problem of coal particles adhering to the inner wall of the funnel due to different humidity is solved, and rapid material leakage and accurate sample sampling are achieved.
Patent Information
- Application Number
- CN202421287771.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-06
- Publication Date
- 2025-02-25
- Estimated Expiration
- 2034-06-06
AI Technical Summary
Coal particles adhere to the inner wall in the funnel of the shrinking extension due to different humidity, resulting in material accumulation, reducing the leakage rate, and affecting the representativeness and accuracy of the sample.
A cleaning device for mixing and shrinking extensions is designed, including a heating part, a rotary shaft and a stirring scraper. The heating part raises the temperature of the inner wall of the funnel, and the rotational action of the rotary shaft and a stirring scraper is cleaned and the coal particles fall quickly.
It effectively avoids material accumulation, ensures rapid leakage of coal particles, improves the precise sampling ability of the expansion machine to select representative samples, and ensures the accuracy and uniformity of samples.
Smart Images
Figure CN222519450U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of sample preparation, in particular to a cleaning device for a mixing and reducing machine. Background Art
[0002] Sample reduction is one of the steps in sample processing such as chemical analysis. It is a process of dividing a sample that has been crushed to a certain particle diameter into several samples with equal reliability according to certain requirements, or reducing the original samples before processing and crushing, and taking some representative samples. The reduction is usually achieved using a reduction machine.
[0003] At present, the commonly used reduction machine is mainly used for reducing coal. The reduction machine usually includes a funnel above the feed port, with a stirring rod arranged in the funnel. The reduction machine also includes a vibration part, an adjustment baffle and a sample retention part. Many different batches of original samples will be poured into the funnel at the same time, and after being stirred and mixed by the stirring rod in the funnel, they will flow down to the vibration part. A receiving groove is provided on the vibration part, and the adjustment baffle is placed on the receiving groove with a gap between the receiving groove and the receiving groove. With the vibration of the vibration part, the mixed coal will vibrate forward in the receiving groove, and the thickness will be fixed by the adjustment baffle, and finally it will flow down along the receiving groove to the sample retention part, and the sample will be retained to realize the sampling operation.
[0004] However, due to the different humidity levels of the coal particles, after being transported into the hopper, some coal particles with higher humidity will adhere to the inner wall of the hopper, which can easily cause material accumulation. This will not only reduce the subsequent coal leakage rate, but also the coal particles that cannot fall within a fixed period of time will not be selected, which is not conducive to the accurate sampling of representative samples by the reducer. Utility Model Content
[0005] The utility model provides a cleaning device for a mixing and reducing machine, which can clean the residual accumulated materials on the inner wall of the funnel to avoid affecting the speed of subsequent material leakage due to material accumulation in the hopper, thereby ensuring the accuracy and uniformity of the reducing machine when selecting representative samples.
[0006] The utility model provides a cleaning device for a mixing and shrinking machine, which is connected to a funnel in the shrinking machine and comprises: a heating part, a rotating shaft, and a stirring scraper wrapped on the outer wall of the funnel, wherein the heating part comprises a soft wrapping layer and an electric heating wire arranged in the wrapping layer, the rotating shaft extends vertically into the funnel and is located in the middle, the upper end of the rotating shaft is higher than the feed port of the funnel, the upper end of the rotating shaft is connected with a driving part for driving the rotating shaft to rotate, the stirring scraper is placed in the funnel and is fixedly connected to the rotating shaft, and the outermost wall of the stirring scraper contacts the inner wall of the funnel.
[0007] Preferably, the stirring scraper includes two parallel blades, which are fixedly connected to the side wall of the rotating shaft. The adjacent sides of the two blades are respectively located at the two ends of the same diameter of the rotating shaft. The middle part of the blades is hollow, and the outer edges are inclined. The inclination angle of the outer edges is the same as the taper of the inner wall of the funnel.
[0008] Preferably, the length of the outer extension of the blade is the same as the length of the inclined extension line under the horizontal projection of the funnel.
[0009] Preferably, the caliber of the funnel discharge port is half the caliber of the feed port, and the taper of the funnel is 45°-60°.
[0010] Preferably, the wrapping layer is made of metal, and the wrapping layer is fixedly sleeved on the outer wall of the funnel.
[0011] Preferably, the heating wire is electrically connected to a temperature control switch.
[0012] Preferably, the inner wall of the funnel and the outer edge of the fan blade are both made of Teflon material.
[0013] Preferably, the driving part includes a bracket and a motor, the bracket is connected to the top of the reducer, the housing of the motor is fixedly connected to the bracket, the output shaft of the motor coincides with the axis of the rotating shaft and the ends of the two are fixedly connected.
[0014] Compared with the prior art, the beneficial effect of the utility model lies in that: through the setting of the cleaning component, the coal particle material on the inner wall of the funnel can be cleaned and made to fall quickly. Specifically, the heating part in the cleaning component can achieve the effect of heating the funnel, so that when the coal material flows down along the funnel and adheres to the inner wall of the funnel, as the temperature of the funnel increases, the moisture content of the coal particle material decreases to avoid sticking to the inner wall of the funnel. At the same time, the rotating shaft and the stirring scraper can rotate in the middle of the funnel to scrape the relatively dry material attached to the inner wall of the funnel and fall quickly into the reducer to avoid affecting the subsequent leakage speed of other coal particle materials, so as to ensure the accuracy and uniformity of the reducer in the reduction and selection of representative samples, and also ensure that some of the attached coal particles have the opportunity to be selected, further improving the accurate sampling of representative samples by the reducer. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 A schematic diagram of the structure of a cleaning device for a mixing and dividing machine provided in an embodiment of the utility model;
[0016] Figure 2 A schematic diagram of the internal structure of a heating part of a cleaning device for a mixing and shrinking machine provided in an embodiment of the utility model;
[0017] Figure 3A schematic diagram of the structure of a stirring scraper for a cleaning device of a mixing and dividing machine provided in an embodiment of the utility model;
[0018] Figure 4 A schematic diagram of the funnel structure of a cleaning device for a mixing and reducing machine provided in an embodiment of the utility model.
[0019] Description of reference numerals:
[0020] A. Reduction machine; 1. Funnel; 2. Heating part; 21. Wrapping layer; 22. Heating wire; 3. Rotating shaft; 4. Driving part; 41. Bracket; 42. Motor; 5. Stirring scraper; 51. Fan blade; 511. Outer edge. DETAILED DESCRIPTION
[0021] A specific implementation of the present utility model is described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present utility model is not limited by the specific implementation mode.
[0022] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the technical solution of the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0023] refer to Figure 1 , Figure 2 and Figure 3 The utility model provides a cleaning device for a mixing and reducing machine, which is connected to the funnel 1 in the reducing machine A, and includes: a heating part 2, a rotating shaft 3, and a stirring blade 5, which is wrapped on the outer wall of the funnel 1, the heating part includes a soft wrapping layer 21 and an electric heating wire 22 arranged in the wrapping layer 21, the rotating shaft 3 extends vertically into the funnel 1 and is located in the middle position, the upper end of the rotating shaft 3 is higher than the feed port of the funnel 1, and the upper end of the rotating shaft 3 is connected to a driving part 4 for driving it to rotate, the stirring blade 5 is placed in the funnel 1 and is fixedly connected to the rotating shaft 3, and the outermost wall of the stirring blade 5 is in contact with the inner wall of the funnel 1.
[0024] In the above embodiments, the cleaning component is set up to achieve the effect of cleaning the coal particle material on the inner wall of the funnel 1 and making it fall quickly. Specifically, the heating part 2 in the cleaning component can achieve the effect of heating the funnel 1, so that when the coal material flows down along the funnel 1 and adheres to the inner wall of the funnel 1, as the temperature of the funnel 1 increases, the moisture content of the coal particle material decreases to avoid sticking to the inner wall of the funnel 1. At the same time, the rotating shaft 3 and the stirring scraper 5 can rotate in the middle part of the funnel 1, so that the relatively dry material attached to the inner wall of the funnel 1 is scraped and quickly falls into the reducer A, avoiding affecting the subsequent leakage speed of other coal particle materials, so as to ensure the accuracy and uniformity of the reducer A in the reduction and selection of representative samples, and also ensure that some of the attached coal particles have the opportunity to be selected, further improving the accurate sampling of representative samples by the reducer A.
[0025] Further, refer to Figure 1 and Figure 3 The stirring scraper 5 includes two parallel blades 51, which are fixedly connected to the side wall of the rotating shaft 3. The adjacent sides of the two blades 51 are respectively located at the two ends of the same diameter of the rotating shaft 3. The middle of the blade 51 is hollow, and the outer edge 511 is inclined. The inclination angle of the outer edge 511 is the same as the taper of the inner wall of the funnel 1.
[0026] In the above embodiments, by limiting the hollow setting of the middle part of the fan blade 51, collision interference with the normally falling coal particle materials is avoided, and by limiting the inclined setting of the outer edge 511 of the fan blade 51, the inclination angle of the outer edge 511 is the same as the taper of the inner wall of the funnel 1, which can further improve the effect of efficiently cleaning the coal particle materials on the inner wall of the funnel 1.
[0027] Further, refer to Figure 1 and Figure 3 The length of the outer extension edge 511 of the fan blade 51 is the same as the length of the inclined extension line of the funnel 1 under the horizontal projection.
[0028] In the above embodiments, it is possible to ensure that the outer extension edge 511 of the fan blade 51 can clean the coal particles that may be attached to the inner wall of the entire funnel 1.
[0029] Further, refer to Figure 2 and Figure 4 The diameter of the leakage port of funnel 1 is half of the diameter of the feeding port, and the taper of funnel 1 is 45°-60°.
[0030] In the above embodiments, by limiting the diameter of the leakage port of the funnel 1 to half the diameter of the feed port and the taper of the funnel 1 to 45°-60°, the falling speed of the coal particle material can be increased as much as possible to ensure uniform falling amount.
[0031] Further, refer to Figure 2The wrapping layer 21 is made of a metal material that is resistant to high temperatures and can efficiently transfer heat. The wrapping layer 21 is fixedly sleeved on the outer wall of the funnel 1 .
[0032] In the above embodiments, the material of the wrapping layer 21 can be copper, which has good thermal conductivity. The wrapping layer 21 is similar in shape to the outer wall of the funnel 1 and wraps the outer wall of the funnel 1. It can be fixed by welding. Considering the later maintenance, it can also be detachably connected by bolts and screws.
[0033] Further, refer to Figure 1 The heating wire 22 is electrically connected to a temperature control switch.
[0034] In the above embodiments, the temperature control switch can be easily adjusted to the temperature of the heating wire 22 and the switch.
[0035] Further, refer to Figure 1 The inner wall of the funnel 1 and the outer edge of the fan blade 51 are both made of Teflon material.
[0036] In the above embodiments, by limiting the inner wall of the funnel 1 and the outer edge of the fan blade 51 to be made of Teflon material, the tight adhesion of the coal particle material to the inner wall of the funnel 1 and the outer edge of the fan blade 51 can be reduced. Specifically, the Teflon material is in the form of a thin-walled coating, which is applied to the inner wall of the funnel 1 and the outer edge of the fan blade 51.
[0037] Further, refer to Figure 1 The driving part 4 includes a bracket 41 and a motor 42. The bracket 41 is connected to the top of the reducer A. The housing of the motor 42 is fixedly connected to the bracket 41. The output shaft of the motor 42 coincides with the axis of the rotating shaft 3 and the ends of the two are fixedly connected.
[0038] In the above embodiment, the output shaft of the motor 42 is used to rotate the rotating shaft 3 so that the fan blades 51 rotate synchronously and the coal particles attached to the inner wall of the hopper 1 are cleaned.
[0039] The above disclosures are only several specific embodiments of the present invention. However, the embodiments of the present invention are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the protection scope of the present invention.
Claims
1. A cleaning device for a mixing and dividing machine, connected to a hopper (1) in a dividing machine (A), characterized in that: include: A heating part (2) is wrapped around the outer wall of the funnel (1), and the heating part (2) comprises a soft wrapping layer (21) and an electric heating wire (22) arranged in the wrapping layer (21); A rotating shaft (3) extends vertically into the funnel (1) and is located in the middle, the upper end of the rotating shaft (3) is higher than the feed port of the funnel (1), and the upper end of the rotating shaft (3) is connected to a driving part (4) for driving the rotating shaft to rotate; A stirring scraper (5) is placed in the funnel (1) and is fixedly connected to the rotating shaft (3); the outermost wall of the stirring scraper (5) is in contact with the inner wall of the funnel (1).
2. A cleaning device for a mixing and dividing machine as claimed in claim 1, characterized in that: The stirring scraper (5) comprises two parallel blades (51), both of which are fixedly connected to the side wall of the rotating shaft (3), and the adjacent sides of the two blades (51) are respectively located at two ends of the same diameter of the rotating shaft (3), the middle of the blade (51) is hollowed out, and the outer edge (511) is inclined, and the inclination angle of the outer edge (511) is the same as the taper of the inner wall of the funnel (1).
3. A cleaning device for a mixing and dividing machine as claimed in claim 2, characterized in that: The length of the outer extension edge (511) of the fan blade (51) is the same as the length of the inclined extension line of the funnel (1) under horizontal projection.
4. A cleaning device for a mixing and dividing machine as claimed in claim 1, characterized in that: The diameter of the leakage port of the funnel (1) is half the diameter of the feeding port, and the taper of the funnel (1) is 45°-60°.
5. A cleaning device for a mixing and dividing machine as claimed in claim 4, characterized in that: The wrapping layer (21) is made of metal, and the wrapping layer (21) is fixedly sleeved on the outer wall of the funnel (1).
6. A cleaning device for a hybrid dividing machine as claimed in claim 4, characterized in that: The heating wire (22) is electrically connected to a temperature control switch.
7. A cleaning device for a mixing and dividing machine as claimed in claim 2, characterized in that: The inner wall of the funnel (1) and the outer edge of the fan blade (51) are both made of Teflon material.
8. A cleaning device for a mixing and dividing machine as claimed in claim 1, characterized in that: The driving part (4) comprises a bracket (41) and a motor (42), wherein the bracket (41) is connected to the top of the reducer (A), the housing of the motor (42) is fixedly connected to the bracket (41), the output shaft of the motor (42) coincides with the axis of the rotating shaft (3), and the ends of the two are fixedly connected.