Crushing device of pin rod mill
By designing annularly arranged crushing rods and crushing grooves in pin rod mills, the problem of low crushing efficiency in the prior art is solved, and higher crushing efficiency and fineness are achieved, especially in handling raw materials with better elasticity, This significantly improves the fineness and production capacity of the product.
Patent Information
- Application Number
- CN202420059266.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-10
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-01-10
AI Technical Summary
The existing pin rod grinding efficiency is low, the impact crushing effect is limited, making it difficult to improve fineness and production capacity.
A crushing device including the left disc body and the right disc body is designed. A plurality of crushing rods are installed on the disc body. The end of the crushing rod is close to the surface of the disc body, and the crushing groove is arranged in an annular shape, a limiting ring and connecting bolts are provided. In order to fix, the crushing groove design increases the impact surface and the number of collisions, and optimizes the shape and arrangement of the crushing rod to improve the impact effect.
It effectively improves the crushing efficiency and fineness, especially for raw materials with better elasticity, the design of the crushing tank significantly improves the fineness and production capacity of the particles.
Smart Images
Figure CN222152312U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a pulverizing device of a pin mill. Background Art
[0002] In the prior art, the grinding chamber of the pin mill is equipped with two discs driven by a power device, and evenly distributed grinding rods are installed on the discs. The two discs rotate at high speed in opposite directions, and the maximum relative speed can reach 250m / s. The material hits the grinding rods at a very high speed, and the air turbulence also causes high-speed collisions between particles. The fineness of the product is achieved by adjusting the rotation speed of the moving disc. However, the grinding efficiency of the grinding rods of the existing pin mill is low, and the effect of impact grinding during operation has certain limitations. Utility Model Content
[0003] In order to make up for the above shortcomings, the utility model provides a pin mill pulverizing device which can effectively ensure the pulverizing efficiency and effect.
[0004] The technical scheme of the utility model is: a pulverizing device of a pin mill, comprising a left disc body and a right disc body, wherein a plurality of pulverizing rods are detachably and fixedly mounted on the left disc body and the right disc body, the ends of the pulverizing rods on the left disc body are adjacent to the inner surface of the right disc body, the ends of the pulverizing rods on the right disc body are adjacent to the inner surface of the left disc body, the pulverizing rods on the left disc body are arranged in a plurality of circles around the center ring of the left disc body, the pulverizing rods on the right disc body are arranged in a plurality of circles around the center ring of the right disc body, a plurality of pulverizing grooves extending along the length direction of the pulverizing rods are arranged on the outer surface of the pulverizing rods, the left disc body and the right disc body both comprise a pulverizing rod mounting plate and a limiting ring, the pulverizing rod mounting plate is provided with a mounting through hole for the front end of the pulverizing rod to pass through, a limiting seat for blocking the rear end of the pulverizing rod from passing through the mounting through hole is fixedly mounted on the rear end of the pulverizing rod, the limiting seat is located between the limiting ring and the pulverizing rod mounting plate, and a connecting bolt is arranged between the limiting seat and the pulverizing rod mounting plate.
[0005] As a preferred technical solution, the cross-sectional shape of the pulverizing rod is a circle, a square, an equilateral triangle, a regular hexagon or a regular pentagon.
[0006] As a preferred technical solution, the distance between the two side walls of the crushing groove increases from the inside to the outside.
[0007] As a preferred technical solution, the cross section of the pulverizing groove is an inverted trapezoid, and the lower base of the inverted trapezoid is located on the outer peripheral surface of the pulverizing rod.
[0008] As a preferred technical solution, the cross-sectional shapes of two adjacent crushing rods in the same circle of crushing rods are different.
[0009] As a preferred technical solution, the straight-line distance between the axes of two adjacent crushing rods in one circle of crushing rods close to the center of the crushing rod mounting plate is α, and the straight-line distance between the axes of two adjacent crushing rods in the other circle of crushing rods is β, α<β.
[0010] As a preferred technical solution, the crushing bars on the left and right trays are staggered with each other in the diameter direction of the crushing bar mounting tray.
[0011] As a preferred technical solution, a cylinder is provided between the pulverizing rod and the limiting seat, and the outer end of the cylinder is inserted into the mounting through hole and extended out to be connected with the pulverizing rod as a whole.
[0012] As a preferred technical solution, the distance between the end of the crushing rod on the left pan and the inner surface of the right pan is greater than the distance that the cylinder on the right pan extends out of the right pan, and the distance between the end of the crushing rod on the right pan and the inner surface of the left pan is greater than the distance that the cylinder on the left pan extends out of the left pan.
[0013] As a preferred technical solution, the crushing rod mounting plate of the left disc body is fixedly mounted on the left driving shaft, the crushing rod mounting plate of the right disc body is fixedly mounted on the rotating disc, and the rotating disc is fixedly mounted on the right driving shaft.
[0014] Due to the adoption of the above technical scheme, a pin mill crushing device includes a left disc body and a right disc body, and a plurality of crushing rods can be detachably fixedly installed on the left disc body and the right disc body, the end of the crushing rod on the left disc body is adjacent to the inner surface of the right disc body, and the end of the crushing rod on the right disc body is adjacent to the inner surface of the left disc body, the crushing rod on the left disc body is arranged in a plurality of circles around the center of the left disc body, and the crushing rod on the right disc body is arranged in a plurality of circles around the center of the right disc body, and a plurality of crushing grooves extending along the length direction of the crushing rod are provided on the outer surface of the crushing rod. The crushing rod is provided with a crushing groove, and the crushing rod has a very high impact surface and a good impact crushing effect, which can effectively increase the number of collisions between the material and the crushing rod, effectively increase the crushing efficiency, and the crushed particles can be finer. When crushing raw materials with good elasticity, the crushing groove on the milling rod has a significant effect on crushing the raw materials into fine particles, and has a significant effect on improving the product fineness and production capacity. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.
[0016] Figure 1 It is a structural schematic diagram of an embodiment of the utility model;
[0017] Figure 2 yes Figure 1 A partial enlarged view of point I in the middle;
[0018] Figure 3 This is a schematic diagram of the structure of the crushing rod in the embodiment of the utility model;
[0019] Figure 4 It is a cross-sectional view of a crushing rod in an embodiment of the utility model. DETAILED DESCRIPTION
[0020] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a pulverizing device of a pin mill comprises a left disc body 1 and a right disc body 2, wherein a plurality of pulverizing rods 3 are detachably fixedly mounted on the left disc body 1 and the right disc body 2, wherein the ends of the pulverizing rods on the left disc body are adjacent to the inner surface of the right disc body, and the ends of the pulverizing rods on the right disc body are adjacent to the inner surface of the left disc body, and the pulverizing rods 3 on the left disc body 1 are arranged in a plurality of circles around the center of the left disc body 1, and the pulverizing rods on the right disc body 2 are arranged in a plurality of circles around the center of the right disc body 2, and the outer surfaces of the pulverizing rods 3 are There are a plurality of crushing grooves 4 extending along the length direction of the crushing rod 3, the left plate body 1 and the right plate body 2 both include a crushing rod mounting plate 5 and a limiting ring 6, the crushing rod mounting plate 5 is provided with a mounting through hole for the front end of the crushing rod 3 to pass through, the rear end of the crushing rod is fixedly installed with a limiting seat 7 to block the rear end of the crushing rod 3 from passing through the mounting through hole, the limiting seat 7 is located between the limiting ring 6 and the crushing rod mounting plate 5, and a connecting bolt is provided between the limiting seat 7 and the crushing rod mounting plate 5. The crushing rod 3 is provided with a crushing groove 4, the crushing rod 3 has a very high impact surface and a good impact crushing effect, can effectively increase the number of collisions between the material and the crushing rod 3, effectively increase the crushing efficiency, and the crushed particles can be finer. When crushing raw materials with good elasticity, the crushing groove on the grinding rod has a significant effect on crushing the raw materials into fine particles, and has a significant effect on improving product fineness and production capacity.
[0021] The cross-sectional shape of the crushing rod 3 is a circle, a square, an equilateral triangle, a regular hexagon or a regular pentagon. By changing the cross-sectional shape of the crushing rod 3, the crushing column on the left or right disk body is any one or more of the above, and the crushing rod can also have a better impact surface, thereby improving the crushing efficiency.
[0022] like Figure 4 As shown, the distance between the two side walls 8 of the crushing groove 4 increases from the inside to the outside, so that the raw materials entering the crushing groove can move outward under the impact of the crushing groove.
[0023] Preferably, the cross section of the pulverizing groove 4 is an inverted trapezoid, and the lower base of the inverted trapezoid is located on the outer peripheral surface of the pulverizing rod.
[0024] In order to further improve the crushing effect, the cross-sectional shapes of two adjacent crushing rods in the same circle of crushing rods 3 are different.
[0025] In two adjacent circles of crushing rods 3, the straight-line distance between the axes of two adjacent crushing rods in one circle of crushing rods close to the center of the crushing rod mounting plate 5 is α, and the straight-line distance between the axes of two adjacent crushing rods in the other circle of crushing rods is β, α<β, so that the distance between adjacent crushing rods decreases from the inside to the outside, so that the raw materials can be gradually crushed, thereby improving the crushing efficiency.
[0026] The crushing rods on the left plate body 1 and the right plate body 2 are staggered with each other in the diameter direction of the crushing rod mounting plate 5. This further improves the crushing effect and increases the contact between the raw material and the crushing rods.
[0027] like Figure 1 and Figure 2 As shown, a cylinder 9 is provided between the crushing rod 3 and the limiting seat 7, and the outer end of the cylinder 9 is inserted into the mounting through hole and extended to be connected to the crushing rod 3 as a whole. As a preferred technical solution, the distance between the end of the crushing rod 3 on the left disk body 1 and the inner surface of the right disk body 2 is greater than the distance that the cylinder 9 on the right disk body extends out of the right disk body 2, and the distance between the end of the crushing rod 3 on the right disk body 2 and the inner surface of the left disk body 1 is greater than the distance that the cylinder 9 on the left disk body extends out of the left disk body 1.
[0028] like Figure 1 As shown, the crushing rod mounting plate 5 of the left disc body 1 is fixedly mounted on the left driving shaft 10 , the crushing rod mounting plate 5 of the right disc body 2 is fixedly mounted on the rotating plate 12 , and the rotating plate is fixedly mounted on the right driving shaft 11 .
[0029] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.
Claims
1. A pin mill pulverizing device, comprising a left plate and a right plate, wherein a plurality of pulverizing rods are detachably fixedly mounted on the left plate and the right plate, wherein the ends of the pulverizing rods on the left plate are adjacent to the inner surface of the right plate, and the ends of the pulverizing rods on the right plate are adjacent to the inner surface of the left plate, wherein: The crushing rods on the left disc are arranged in a plurality of circles around the center of the left disc, and the crushing rods on the right disc are arranged in a plurality of circles around the center of the right disc. The outer surfaces of the crushing rods are provided with a plurality of crushing grooves extending along the length direction of the crushing rods.
2. The pin mill pulverizing device according to claim 1, characterized in that: The cross-section of the pulverizing rod is in the shape of a circle, a square, an equilateral triangle, a regular hexagon or a regular pentagon.
3. The pulverizing device of the pin mill according to claim 1, characterized in that: The distance between the two side walls of the crushing groove increases from the inside to the outside.
4. The pulverizing device of the pin mill according to claim 3, characterized in that: The cross section of the pulverizing groove is an inverted trapezoid, and the lower base of the inverted trapezoid is located on the outer peripheral surface of the pulverizing rod.
5. The pin mill pulverizing device according to claim 1, characterized in that: The cross-sectional shapes of two adjacent crushing rods in the same circle of crushing rods are different.
6. The pin mill pulverizing device according to claim 1, characterized in that: The left disk body and the right disk body both include a crushing rod mounting disk and a limiting ring. The crushing rod mounting disk is provided with a mounting through hole for the front end of the crushing rod to pass through. The rear end of the crushing rod is fixedly installed with a limiting seat for blocking the rear end of the crushing rod from passing through the mounting through hole. The limiting seat is located between the limiting ring and the crushing rod mounting disk. Connecting bolts are provided between the limiting seat and the crushing rod mounting disk. The straight-line distance between the axes of two adjacent crushing rods in one circle of crushing rods close to the center of the crushing rod mounting disk in two adjacent circles of crushing rods is α, and the straight-line distance between the axes of two adjacent crushing rods in the other circle of crushing rods is β, and α<β.
7. The pin mill pulverizing device according to claim 6, characterized in that: The crushing bars on the left and right disc bodies are staggered with each other in the diameter direction of the crushing bar mounting disc.
8. The pin mill pulverizing device according to claim 6, characterized in that: A cylinder is arranged between the crushing rod and the limiting seat, and the outer end of the cylinder penetrates into the mounting through hole and extends out to be connected with the crushing rod as a whole.
9. The pulverizing device of the pin mill according to claim 8, characterized in that: The distance between the end of the crushing rod on the left pan and the inner surface of the right pan is greater than the distance the cylinder on the right pan extends out of the right pan, and the distance between the end of the crushing rod on the right pan and the inner surface of the left pan is greater than the distance the cylinder on the left pan extends out of the left pan.
10. The pin mill pulverizing device according to claim 6, characterized in that: The crushing rod mounting plate of the left disc body is fixedly mounted on the left driving shaft, the crushing rod mounting plate of the right disc body is fixedly mounted on the rotating disc, and the rotating disc is fixedly mounted on the right driving shaft.