Hammerhead of crusher

Abstract

The utility model discloses a hammer head of a crusher, which can solve the technical problem of improving the crushing efficiency. The crusher hammerhead comprises a base part and a working part, the base part is provided with a hammerhead mounting structure, the hammerhead mounting structure is used for mounting the hammerhead on a hammerhead driving mechanism, and the working part is arranged on the base part and used for hammering materials. The working part is internally provided with a material separating and guiding flow channel which is arranged in a front-and-back penetrating mode in the hammering direction, and hammering areas which are distributed on the periphery of an inlet of the material separating and guiding flow channel at intervals are formed on the hammering face of the front end of the working part. And the grinding efficiency of the ultrafine grinder can be obviously improved.

Description

Technical Field

[0001] This application relates to pulverizers and pulverizer hammers, and particularly to ultrafine pulverizers and their hammers. Background Art

[0002] Vertical shaft ultrafine pulverizers (SWFL series) are mainly applied to various large, medium and small feed mills for ultrafine pulverization of various coarse powder materials to achieve the required standard ultrafine particle size (usually adjustable between 60 mesh and 300 mesh). The working principle of the vertical shaft ultrafine pulverizer is as follows: Materials enter the pulverizing chamber through the feeding port. A rotating disk (or pulverizing disk) is arranged in the pulverizing chamber. A plurality of hammers are circumferentially arranged at intervals on the edge of the rotating disk. A gear ring is arranged in the radial outer area of the rotating disk. The rotating disk drives the hammers to rotate at high speed. The materials are pulverized under the impact of the high-speed rotating hammers and the friction and shearing between the hammers and the gear ring. The pulverized materials enter the classification impeller through the diversion cover for classification. The qualified pulverized materials are sent away by the air flow generated by the fan through the discharge chamber via the classification impeller. The unqualified pulverized materials fall onto the rotating disk rotating at high speed. The materials on the rotating disk are thrown between the gear ring and the hammers under the action of centrifugal force and are struck by the hammers again and rubbed and sheared between the hammers and the gear ring.

[0003] The patent document with the publication number CN104624299A discloses an ultrafine pulverizer, specifically a vertical shaft ultrafine pulverizer, wherein (see paragraphs 0053, 0027 of the specification and Figure 5 - Figure 6): One side of the hammer is the striking surface. At least two mounting holes are arranged on the hammer. The connecting line direction of the mounting holes is perpendicular to the striking surface (i.e., the front hammering surface). The hammer is mounted on the wear-resistant disk (i.e., the rotating disk) through the mounting holes. The striking surface of the hammer is located in the diameter direction of the wear-resistant disk. A tooth-like structure is arranged on the side of the hammer facing the gear ring. The tooth-like structure is an inclined tooth inclined to the normal direction of the wear-resistant disk. The impact of the internal high-speed flow of the pulverizer on the materials is enhanced by using the gear ring and the tooth-like structure of the hammer, and the impact and friction between the materials are increased, thereby improving the pulverization efficiency, effect and the output of the pulverizer. The technical improvement idea for the hammer in this ultrafine pulverizer is to increase the impact and shearing effect of the materials between the gear ring and the hammer by arranging a tooth-like structure on the side of the hammer facing the gear ring. Prior arts with similar improvement ideas also include the patent document with the publication number CN203342866U, etc. Summary of the Utility Model

[0004] The purpose of this application is to provide a pulverizer and a pulverizer hammer to solve the technical problem of improving the pulverization efficiency.

[0005] In a first aspect, a crusher is provided, which includes a rotary disk. A plurality of hammers are circumferentially and spacedly arranged at the edge of the rotary disk. A gear ring is provided in the radially outer region of the rotary disk. The hammer includes a base portion and a working portion. The base portion has a hammer mounting structure for mounting the hammer on the rotary disk. The working portion is arranged on the base portion and is used for hammering materials. A material separation and diversion flow channel is provided in the working portion and runs through from front to back along the hammering direction. Hammering areas are formed on the front hammering surface of the working portion and are spacedly distributed around the entrance of the material separation and diversion flow channel.

[0006] As an optimization and / or instantiation of the crusher in the above first aspect, the working portion has a protruding portion whose top protrudes from the top of the base portion. N material separation and diversion flow channels are provided on the protruding portion, where N is an integer greater than or equal to 1. When N is greater than 1, the N material separation and diversion flow channels are arranged at intervals along the width direction of the left and right sides of the working portion. First hammering areas are formed in the areas on the left and right sides of the entrance of each material separation and diversion flow channel on the front hammering surface.

[0007] As an optimization and / or instantiation of the crusher in the above first aspect, the material diversion flow channel provided on the protruding portion is a material diversion groove with an open top.

[0008] As an optimization and / or instantiation of the crusher in the above first aspect, a groove extending downward from the bottom edge of the entrance of the corresponding material separation and diversion flow channel is provided on the front hammering surface. The groove forms a stepped structure on the front hammering surface, and a second hammering area is formed in the protruding area on the side of the corresponding stepped structure on the front hammering surface.

[0009] As an optimization and / or instantiation of the crusher in the above first aspect, the cross-section of the entrance of the material diversion flow channel provided on the protruding portion is rectangular.

[0010] As an optimization and / or instantiation of the crusher in the above first aspect, rectangular hammering surfaces are formed in the areas on the left and right sides of the entrance of each material diversion flow channel on the front hammering surface. Each rectangular hammering surface includes a corresponding first hammering area and a second hammering area.

[0011] As an optimization and / or instantiation of the crusher in the above first aspect, two material separation and diversion flow channels are provided in the working portion. The width between the two material separation and diversion flow channels is the same, and the height is 0.4 - 0.6 times the height of the hammer. The front hammering surface has three rectangular hammering surfaces arranged at intervals along the width direction of the left and right sides of the working portion. The height of the three rectangular hammering surfaces is equal to the height of the hammer, and the width of the three rectangular hammering surfaces is 0.2 - 0.25 times the width of the hammer.

[0012] As an optimization and / or instantiation of the crusher in the first aspect above, the rectangular hammering surface near the rotation center of the rotary disk in the front-end hammering surface protrudes forward from other rectangular hammering surfaces.

[0013] As an optimization and / or instantiation of the crusher in the first aspect above, the base portion has a mounting seat plate, and bolt mounting holes are provided on the mounting seat plate for placing and fixing the mounting seat plate on the crusher hammer head driving mechanism through bolts, and the working portion is arranged at the front of the mounting seat plate.

[0014] As an optimization and / or instantiation of the crusher in the first aspect above, the material separation and diversion flow channel has an inclined section, and the inclined section causes the outlet of the material separation and diversion flow channel to shift towards the gear ring relative to the inlet of the material separation and diversion flow channel.

[0015] As an optimization and / or instantiation of the crusher in the first aspect above, the hammer head is of an integral structure, a wear-resistant alloy layer is provided at the front of the hammer head, and the front-end hammering surface is composed of the wear-resistant alloy layer.

[0016] In a second aspect, a crusher hammer head is provided, which includes a base portion and a working portion. The base portion has a hammer head mounting structure for mounting the hammer head on a hammer head driving mechanism. The working portion is arranged on the base portion and is used for hammering materials. A material separation and diversion flow channel is provided in the working portion and runs through from front to back along the hammering direction, and hammering areas are formed on the front-end hammering surface of the working portion and are spaced around the inlet of the material separation and diversion flow channel.

[0017] As an optimization and / or instantiation of the crusher hammer head in the second aspect above, the working portion has a protruding portion that protrudes above the top of the base portion. N material separation and diversion flow channels are provided on the protruding portion, where N is an integer greater than or equal to 1. When N is greater than 1, the N material separation and diversion flow channels are arranged at intervals along the width direction of the left and right sides of the working portion, and first hammering areas are formed on the front-end hammering surface in the areas on the left and right sides of the inlets of the respective material separation and diversion flow channels.

[0018] As an optimization and / or instantiation of the crusher hammer head in the second aspect above, the material diversion flow channels provided on the protruding portion are material diversion grooves with open tops.

[0019] As an optimization and / or instantiation of the crusher hammer head in the second aspect above, grooves extending downward from the bottom edge of the inlet of the corresponding material separation and diversion flow channel are provided on the front-end hammering surface. The grooves form a stepped structure on the front-end hammering surface, and second hammering areas are formed on the protruding areas on the side of the corresponding stepped structure on the front-end hammering surface.

[0020] As an optimization and / or instantiation of the crusher hammer head in the second aspect described above, the cross-section of the material diversion channel inlet formed on the raised portion is rectangular.

[0021] As an optimization and / or instantiation of the crusher hammer head in the second aspect described above, the areas on the front hammering surface on the left and right sides of each material diversion channel inlet both form rectangular hammering surfaces, and each rectangular hammering surface includes a corresponding first hammering area and a second hammering area.

[0022] As an optimization and / or instantiation of the crusher hammer head in the second aspect described above, two material separation and diversion channels are provided in the working portion. The width between the two material separation and diversion channels is the same and the height is 0.4 - 0.6 times the height of the hammer head. The front hammering surface has three rectangular hammering surfaces arranged at intervals along the width direction of the left and right sides of the working portion. The height of the three rectangular hammering surfaces is equal to the height of the hammer head, and the width of the three rectangular hammering surfaces is 0.2 - 0.25 times the width of the hammer head.

[0023] As an optimization and / or instantiation of the crusher hammer head in the second aspect described above, when the hammer head is in use, it is driven by a crusher hammer head driving mechanism to perform a rotary motion. The rectangular hammering surface in the front hammering surface close to the rotation center of the rotary motion protrudes forward from other rectangular hammering surfaces.

[0024] As an optimization and / or instantiation of the crusher hammer head in the second aspect described above, the base portion has a mounting seat plate. Bolt mounting holes are provided on the mounting seat plate for placing and fixing the mounting seat plate on the crusher hammer head driving mechanism through bolts. The working portion is arranged at the front of the mounting seat plate.

[0025] As an optimization and / or instantiation of the crusher hammer head in the second aspect described above, when the hammer head is in use, it is driven by a crusher hammer head driving mechanism to perform a rotary motion. The material separation and diversion channel has an inclined section, and the inclined section causes the outlet of the material separation and diversion channel to deviate towards the radially outer region of the rotary motion relative to the inlet of the material separation and diversion channel.

[0026] As an optimization and / or instantiation of the crusher hammer head in the second aspect described above, the hammer head is of an integral structure. A wear-resistant alloy layer is provided at the front of the hammer head, and the front hammering surface is composed of the wear-resistant alloy layer.

[0027] In the past, the front hammering surface was a smooth surface without holes. The crusher mainly relied on the impact force of the hammer head and the extrusion and shear forces between the hammer head and the gear ring to crush materials.

[0028] The crusher hammerhead provided by this application has a material separation and diversion channel arranged in the working part, and hammering areas are formed on the front hammering surface at intervals, which can mainly bring the following beneficial effects:

[0029] First, the material separation and diversion channel can separate and guide the materials, making the materials more evenly distributed on the front hammering surface, and avoiding uneven hammering caused by the concentration of materials in certain areas of the front hammering surface. The hammering areas distributed at intervals are conducive to increasing the contact area between the hammerhead and the materials, and improving the hammering efficiency.

[0030] Second, the entrances of the material separation and diversion channel form multiple hammering edges, increasing the shearing effect on the materials.

[0031] Third, the material separation and diversion channel can guide some materials to pass through the inside of the hammerhead, increasing the movement track of the materials and improving the crushing efficiency.

[0032] Fourth, the setting of the material separation and diversion channel enables the hammerhead to have a certain self-cleaning function, reducing the adhesion of materials on the surface of the hammerhead. Thus, the hammering efficiency can also be improved.

[0033] In summary, experiments show that the crushing efficiency of the ultrafine crusher can be significantly improved by the improved crusher hammerhead.

[0034] The following further describes this application in conjunction with the accompanying drawings and specific embodiments. The additional aspects and advantages of this application will be partially given in the following description, partially become apparent from the following description, or be understood through practice. Description of the Drawings

[0035] The accompanying drawings forming a part of this specification are used to assist in the understanding of this application. The content provided in the accompanying drawings and the relevant descriptions in this specification can be used to explain this application, but do not constitute an improper limitation to this application.

[0036] Figure 1 It is a diagram of the usage state of a crusher hammerhead according to an embodiment of this application.

[0037] Figure 2 For Figure 1 is a partial enlarged view.

[0038] Figure 3 It is a schematic structural diagram of a crusher hammerhead according to an embodiment of this application.

[0039] Figure 4 For Figure 3 is a top view of the crusher hammerhead shown.

[0040] Figure 5 For Figure 4 is a bottom view of the crusher hammerhead shown.

[0041] In the figure, the markings are as follows: hammer head - 1; base part - 11; mounting seat plate - 111; bolt mounting hole - 112; working part - 12; material separation and diversion flow channel - 121; front hammering surface - 122; protruding part - 123; first hammering area - 124; groove - 125; second hammering area - 126; height - H; width - W; rotary disk - 2. Detailed implementation manners

[0042] The present application will be described clearly and completely below with reference to the accompanying drawings. Those of ordinary skill in the art will be able to implement the present application based on these descriptions. Before describing the present application with reference to the accompanying drawings, it should be particularly noted that:

[0043] In each part including the following description, the technical solutions and technical features provided can be combined with each other without conflict. In addition, where possible, these technical solutions, technical features and related combinations can be given specific technical subjects and protected by relevant patents.

[0044] The embodiments of the present application involved in the following description are usually only some embodiments rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art without creative work based on these embodiments should fall within the scope of patent protection.

[0045] Regarding the terms and units in this specification: The terms "including", "comprising", "having" and any variations thereof in this specification, the corresponding claims and relevant parts are intended to cover non-exclusive inclusion. In addition, other relevant terms and units can be reasonably interpreted based on the relevant content provided in this specification.

[0046] As Figures 1-5 shown, a hammer head applicable to a vertical shaft ultrafine pulverizer (SWFL series) according to an embodiment of the present application includes a base part 11 and a working part 12. The base part 11 has a hammer head mounting structure for mounting the hammer head 1 on a hammer head driving mechanism (i.e., the rotary disk 2). The working part 12 is provided on the base part 11 and is used for hammering materials. The working part 12 has a material separation and diversion flow channel 121 that runs through in the front - rear direction along the hammering direction. Hammering areas are formed on the front hammering surface 122 of the working part 12 and are spaced apart and distributed around the entrance of the material separation and diversion flow channel 121. During use, a plurality of hammer heads 1 are circumferentially and spacedly arranged on the edge of the rotary disk 2, and a gear ring is provided in the radially outer area of the rotary disk 2.

[0047] Regarding the vertical ultra - fine grinder (SWFL series), its working principle is as follows: Materials enter the crushing chamber through the feeding port. In the crushing chamber, there is a rotating disk 2 (or crushing disk). A plurality of hammers 1 are circumferentially arranged at intervals on the edge of the rotating disk 2. A gear ring ( Figures 1-2 not shown in Figures 1-2 ) is provided in the radially outer region of the rotating disk 2. The rotating disk 2 drives the hammers 1 to rotate at high speed. The materials are crushed under the impact of the high - speed rotating hammers 1 and the friction and shearing between the hammers 1 and the gear ring. The crushed materials enter the classification impeller through the guide cover for classification. The qualified crushed materials are sent away by the air flow generated by the fan through the discharge chamber via the classification impeller, and the unqualified crushed materials fall onto the rotating disk 2 rotating at high speed. The materials on the rotating disk 2 are thrown between the gear ring and the hammers 1 under the action of centrifugal force and are struck by the hammers 1 again and are subjected to friction and shearing between the hammers 1 and the gear ring. Reference: Chinese patent document with publication number CN104624299A.

[0048] Among them, the base part 11 specifically has a mounting seat plate 111. On the mounting seat plate 111, there are bolt mounting holes 112 (step holes) for placing and fixing the mounting seat plate 111 on the rotating disk 2 through bolts. The working part 12 is arranged at the front of the mounting seat plate 111. The number of the bolt mounting holes 112 is usually two, and the connection line of the centers of the two bolt mounting holes 112 can be perpendicular to the front hammering surface 122.

[0049] Among them, the working part 12 has a convex part 123 protruding from the top surface of the mounting seat plate 111. Two material separation and diversion channels 121 are opened on the convex part 123. The two material separation and diversion channels 121 are arranged at intervals along the left - right width direction of the working part 12. Moreover, the two material separation and diversion channels 121 are both material diversion grooves with open tops and rectangular cross - sections. The areas on the front hammering surface 122 on the left and right sides of the entrances of the respective material separation and diversion channels 121 form the first hammering areas 124.

[0050] The main function of the above - mentioned convex part 123 is to provide a condition (position) for opening the material separation and diversion channels 121, that is, the material separation and diversion channels 121 are opened on the convex part 123.

[0051] In addition, as an improvement, the above - mentioned two material separation and diversion channels 121 also have inclined sections, and the inclined sections make the outlet of the material separation and diversion channel 121 offset towards the gear ring relative to the inlet of the material separation and diversion channel 121.

[0052] In addition, a groove 125 extending downward from the bottom edge of the entrance of the corresponding material separation and diversion channel 121 can also be provided on the front hammering surface 122. The groove 125 forms a step structure on the front hammering surface 122, and the convex area on the front hammering surface 122 on the side of the corresponding step structure forms the second hammering area 126.

[0053] More specifically, in this embodiment, the left and right regions of the front hammering surface 122 on both sides of the inlets of the respective material diversion channels 121 form rectangular hammering surfaces, and each rectangular hammering surface includes a corresponding first hammering area 124 and a second hammering area 126 (as Figure 5 shown, the upper part of each rectangular hammering surface is the first hammering area 124, and the lower part is the second hammering area 126).

[0054] In this embodiment, the widths between the two material separation and diversion channels 121 are the same and the height is equal to 0.5 times the height of the hammer head 1 (i.e., Figure 5 the label H in Figure 5 ). The front hammering surface 122 has three rectangular hammering surfaces arranged at intervals along the width direction of the left and right sides of the working part 12. The heights of these three rectangular hammering surfaces are equal to the height of the hammer head 1, and the widths of these three rectangular hammering surfaces are equal to 0.2 times the width of the hammer head 1 (i.e.,

[0055] the label W in Figure 4 ).

[0056] In addition, the above-mentioned hammer head 1 is of an integral structure. The front part of the hammer head 1 is provided with a wear-resistant alloy layer, and the front hammering surface 122 is composed of the wear-resistant alloy layer.

[0057] The hammer head of the above embodiment can bring the following beneficial effects by arranging the material separation and diversion channels 121 in the working part 12 and forming spaced-apart hammering areas on the front hammering surface 122:

[0058] First, the material separation and diversion channels 121 can separate and guide the materials, making the materials more evenly distributed on the front hammering surface 122, and avoiding uneven hammering caused by the concentration of materials in certain areas of the front hammering surface 122. The spaced-apart hammering areas are beneficial to increasing the contact area between the hammer head 1 and the materials, and improving the hammering efficiency.

[0059] Second, the inlets of the material separation and diversion channels 121 form multiple hammering edges, increasing the shearing effect on the materials.

[0060] Third, the material separation and diversion channels 121 can guide some materials to pass through the inside of the hammer head 1, increasing the movement trajectories of the materials and improving the crushing efficiency.

[0061] Fourth, the arrangement of the material separation and diversion channels 121 enables the hammer head 1 to have a certain self-cleaning function, reducing the adhesion of materials on the surface of the hammer head. Thus, the hammering efficiency can also be improved.

[0062] Fifth, when a groove 125 extending downward from the bottom edge of the inlet of the corresponding material separation and diversion channel 121 is provided on the front hammering surface 122, the groove 125 forms a stepped structure on the front hammering surface 122. When a raised area on the front hammering surface 122 on the side of the corresponding stepped structure forms a second hammering area 126, the hammering edge is further increased, improving the shearing effect.

[0063] Sixth, since the outlet of the material separation and diversion channel 121 is offset toward the gear ring relative to the inlet of the material separation and diversion channel 121, the inclined material separation and diversion channel 121 can guide the material toward the gear ring, improving the efficiency of the material between the hammer head 1 and the gear ring.

[0064] Seventh, since the material on the rotating disk 2 is thrown toward the hammer head 1 under the action of centrifugal force, the part of the front hammering surface 122 close to the rotation center of the rotating disk 2 wears the most. Among the above three rectangular hammering surfaces, the rectangular hammering surface close to the rotation center of the rotating disk 2 protrudes forward from the other rectangular hammering surfaces. Therefore, the service life of the rectangular hammering surface (which wears greatly) close to the rotation center of the rotating disk 2 among the three rectangular hammering surfaces can be ensured.

[0065] Experimental situation

[0066] Install the hammer head 1 of the above embodiment on the rotating disk 2 (twenty-two hammer heads 1 are evenly spaced on the rotating disk 2). The height H of the hammer head 1 is 54 mm, the width W is 64 mm. The main motor power of the vertical shaft ultrafine pulverizer is 240 KW, and the material to be pulverized is carp expanded feed (moisture content 9.25% before pulverization, passing rate through a 40-mesh sieve 88.7%, passing rate through a 60-mesh sieve 75.7%). Use the vertical shaft ultrafine pulverizer installed with the above hammer head 1 to pulverize the material, and the pulverization fineness is 80 mesh. After testing, the passing rate of the pulverized material through an 80-mesh sieve is ≥92%, the production capacity is up to 12.93 T / h at most, and the power consumption per ton is as low as 23.14 degrees. When replacing with a conventional hammer head, the production capacity is as low as 8.47 T / h, and the power consumption per ton is as high as 37.29 degrees.

[0067] The above has described the relevant content of this application. Those of ordinary skill in the art will be able to implement this application based on these descriptions. Based on the above content of this specification, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of patent protection.

Claims

1. A hammer head of a pulverizer, comprising a base part and a working part, wherein the base part has a hammer head mounting structure, wherein the hammer head mounting structure is used to mount the hammer head on a hammer head driving mechanism, and the working part is arranged on the base part and is used to hammer materials, characterized in that: The working part is provided with a material separation guide flow channel which is arranged to penetrate from front to back along the hammering direction, and a hammering area which is distributed at intervals around the inlet of the material separation guide flow channel is formed on the front end hammering surface of the working part.

2. The hammer head of the pulverizer according to claim 1, characterized in that: The working part has a raised part whose top protrudes from the top of the base part, and N material separation guide flow channels are opened on the raised part, where N is an integer ≥1. When N is greater than 1, the N material separation guide flow channels are arranged at intervals along the width direction of the left and right sides of the working part, and the areas on the front end hammering surface located on the left and right sides of the entrance of each material separation guide flow channel form a first hammering area.

3. The hammer head of the pulverizer according to claim 2, characterized in that: The material separation and diversion flow channel opened on the raised portion is a material diversion groove with an open top.

4. The hammer head of the pulverizer according to claim 2, characterized in that: The front end hammering surface is provided with a groove extending downward from the bottom edge of the inlet of the corresponding material separation guide channel, the groove forms a step structure on the front end hammering surface, and the raised area on the side of the corresponding step structure on the front end hammering surface forms a second hammering area.

5. The hammer head of the pulverizer according to claim 4, characterized in that: The cross section of the inlet of the material separation and diversion flow channel opened on the protruding portion is rectangular.

6. The hammer head of the pulverizer according to claim 5, characterized in that: The left and right areas on the front end hammering surface located at the entrance of each material separation and diversion flow channel both constitute rectangular hammering surfaces, and each rectangular hammering surface includes a corresponding first hammering area and a second hammering area.

7. The hammer head of a pulverizer according to claim 6, characterized in that: The working part is provided with two material separation guide flow channels, the widths of the two material separation guide flow channels are the same and the heights are equal to 0.4-0.6 times the height of the hammer head. The front end hammering surface has three rectangular hammering surfaces arranged at intervals along the width direction of the left and right sides of the working part, the heights of the three rectangular hammering surfaces are equal to the height of the hammer head, and the widths of the three rectangular hammering surfaces are equal to 0.2-0.25 times the width of the hammer head.

8. The hammer head of a pulverizer according to claim 6, characterized in that: When the hammer head is in use, it is driven by the hammer head driving mechanism of the crusher to perform a rotary motion, and the rectangular hammering surface close to the rotation center of the rotary motion among the front end hammering surfaces protrudes forward from the other rectangular hammering surfaces.

9. The hammer head of a pulverizer according to any one of claims 1 to 8, characterized in that: The base part has a mounting seat plate, the mounting seat plate is provided with bolt mounting holes for placing and fixing the mounting seat plate on the hammer driving mechanism of the pulverizer by bolts, and the working part is arranged at the front part of the mounting seat plate; And / or, when in use, the hammer head is driven by the crusher hammer head driving mechanism to perform rotational motion, and the material separation guide flow channel has an inclined section, and the inclined section makes the outlet of the material separation guide flow channel offset toward the radial outer area of ​​the rotational motion relative to the inlet of the material separation guide flow channel.

10. The hammer head of a pulverizer according to any one of claims 1 to 8, characterized in that: The hammer head is an integrated structure, the front part of the hammer head is provided with a wear-resistant alloy layer, and the front end hammering surface is composed of the wear-resistant alloy layer.

Images