WO2010135982A1 - 剪式锤片粉碎机 - Google Patents

剪式锤片粉碎机 Download PDF

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Publication number
WO2010135982A1
WO2010135982A1 PCT/CN2010/073197 CN2010073197W WO2010135982A1 WO 2010135982 A1 WO2010135982 A1 WO 2010135982A1 CN 2010073197 W CN2010073197 W CN 2010073197W WO 2010135982 A1 WO2010135982 A1 WO 2010135982A1
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WIPO (PCT)
Prior art keywords
hammer
fixed
frame
scissor
fixed hammer
Prior art date
Application number
PCT/CN2010/073197
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English (en)
French (fr)
Inventor
俞信国
乐其呈
俞正
Original Assignee
Yu Xinguo
Le Qicheng
Yu Zheng
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yu Xinguo, Le Qicheng, Yu Zheng filed Critical Yu Xinguo
Priority to US13/322,380 priority Critical patent/US8899503B2/en
Publication of WO2010135982A1 publication Critical patent/WO2010135982A1/zh

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/02—Disintegrating by mills having rotary beater elements ; Hammer mills with horizontal rotor shaft
    • B02C13/06—Disintegrating by mills having rotary beater elements ; Hammer mills with horizontal rotor shaft with beaters rigidly connected to the rotor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/02—Disintegrating by mills having rotary beater elements ; Hammer mills with horizontal rotor shaft
    • B02C13/04—Disintegrating by mills having rotary beater elements ; Hammer mills with horizontal rotor shaft with beaters hinged to the rotor; Hammer mills
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/26—Details
    • B02C13/282—Shape or inner surface of mill-housings
    • B02C13/284—Built-in screens

Definitions

  • the present invention relates to a pulverizing apparatus for use in industries such as feed, food, chemical, medical, etc., and more particularly to a scissor hammer pulverizer. Background technique
  • the hammer mill is usually composed of a feed port, a body, a rotor, a hammer, a sieve plate and a pressure screen frame, a motor, a discharge port, etc., and when the motor is driven, the rotor is driven by the motor to rotate the hammer on the rotor. After the material enters from the feed inlet, it is continuously hammered and crushed by the hammer. The crushed material powder passes through the sieve hole of the sieve and is discharged from the discharge port of the crusher.
  • the prior art shredder has the following problems:
  • the pulverizer When the material enters from the feeding inlet of the pulverizer, the pulverizer hammers the material in the direction of tangential movement. The hammering speed of the material is large. Although it is beneficial to improve the pulverizing efficiency, the material is loaded with the hammer. When the sheet moves in the same direction, the relative speed of the hammer to the material is obviously reduced, and the relative speed of the hammer to the material is favorable to improve the pulverizing efficiency.
  • the hammer In order to improve the pulverizing efficiency, the hammer must have a large moving speed. It is generally required to be about 100 m/s for the animal and plant materials. In the area corresponding to the arc length of the screen, the material is driven in the same direction by the hammer. The movement is also about 50-100 m / s, and usually the movement speed of the material on the surface of the sieve is desirably low, so that when the material passes along the circumferential tangential direction on the surface of the sieve, it is easy to obtain an opportunity and enough time to pass through the sieve. , so that the yield and the uniformity of the material to be pulverized are increased.
  • the material powder will be better at 1-20 m/s, which can significantly improve the yield and improve the uniformity of the powder.
  • the existing crusher cannot At the same time, the high speed of the hammer and the low speed of the material on the screen surface are taken into consideration.
  • the object of the present invention is to overcome the above drawbacks of the prior art, and to provide an effective improvement of pulverization efficiency and A scissor hammer mill for improving the uniformity of powder.
  • a scissor hammer pulverizer which mainly comprises a feed port, a hammer, a rotor, a sieve plate and a pressure screen frame thereof, a discharge port, a body, a motor, and the like a fixed hammer plate and a fixed hammer disposed on the fixed hammer plate frame, the fixed hammer plate frame is fixed on the body body, and the fixed hammer is fixed on the fixed hammer plate frame, and the fixed hammer is mounted parallel to the rotating plane of the hammer piece, and has a spacing. When the hammer rotates, it will not touch the fixed hammer frame and the fixed hammer.
  • the material enters When the material enters, it is hammered by the hammer to form a rotating material ring. After the material ring hits the fixed hammer, the material is crushed again. At the same time, the fixed hammer also reduces the rotation speed of the material ring. The low-speed material moves on the surface of the sieve. The granules pass through the mesh.
  • the screen is mounted on the screen frame, and a vibration motor is disposed below the screen frame, and the vibration motor is connected to the screen frame.
  • the pressure screen frame is separated from the machine body by a vibration isolating device such as a spring, so that the screen piece and the pressure screen frame can vibrate independently, and the screen piece and the fixed hammer do not touch, and the hammer piece does not collide.
  • a vibration isolating device such as a spring
  • the spacing between the fixed hammer and the rotating plane of the hammer is 1-50 mm.
  • the spacing is determined by the material pulverization requirements. For the finer particles, a smaller spacing can be selected.
  • the spacing can be adjusted by adjusting the width of the hammer spacer.
  • the hammer spacers of different widths can be replaced to change the distance between the fixed hammer and the hammer, or the spacing can be adjusted by adjusting the thickness of the hammer.
  • the number of fixed hammers on the fixed hammer frame is one or more, and the fixed hammer is in the form of a sheet, and the planar shape thereof may be any one of a triangle shape or a trapezoidal shape or a polygonal shape or a circular arc shape or a combination therebetween.
  • the fixed hammer can be attached to the fixed hammer frame, or it can be detachable, such as bolted to the fixed hammer frame. When the fixed hammer and the hammer meet each other, the edge between the two meets an acute angle ⁇ on the vertical plane of the rotating shaft of the rotor.
  • the matching of the fixed hammer and the hammer is in the shape of a scissors, which is advantageous for improving the shearing and pulverizing effect on the material.
  • Due to the setting of the fixed hammer it acts as a barrier to material movement, and the hammer hammer increases the hammering speed of the material.
  • the moving speed of the material on the surface of the sieve corresponding to the fixed hammer decreases, which is favorable for discharging.
  • the material can be guided by the hammer and the acute angle ⁇ of the hammer, and a component force is generated in the direction of the sieve hole to move the material toward the sieve hole.
  • the above acute angle ⁇ is generally preferably from 10 to 60 degrees, and can be adjusted according to actual conditions. For example, it can be adjusted by fixing the bolt of the fixed hammer, and a screw hole clearance for adjusting the bolt can be reserved on the fixed hammer frame, and the angle can be adjusted within a certain range.
  • the cutting edge of the fixed hammer and the hammer can also be in a parallel state.
  • the hammer can be rotated clockwise or counterclockwise, so the hammer is generally symmetrical, so that both sides of the hammer can be greeted with the hammer.
  • the number of fixed hammer plates may be one or more according to the width of the inner cavity of the pulverizer, and the fixed hammer plate frame is often plate-shaped, and is arranged in parallel with the rotation plane of the hammer.
  • the fixed hammer frame can be an annular plate shape of the intermediate through hole, and the hole The diameter is larger than the diameter of the rotor so that the fixed hammer frame is not in contact with the rotor.
  • One or more fixed hammers are disposed around the fixed hammer frame, and one or more protruding portions are outwardly extended on the annular periphery of the fixed hammer plate frame, and the protruding portions are connected with the body to fix the fixed hammer plate frame On the body of the pulverizer.
  • the fixed hammer and fixed hammer frame can be made of high-strength alloy steel or high-strength alloy steel on the surface of ordinary steel.
  • the invention can be applied to horizontal pulverizers as well as vertical pulverizers or other types of pulverizers.
  • the pulverizer equipped with the fixed hammer frame and the fixed hammer can maintain a relatively large relative speed difference of the material not only at the pulverizer port but also in the area corresponding to the arc length of the screen.
  • the high speed of the hammer and the low speed of the material on the surface of the sieve when the hammer rotates and the hammer crosses, the angle of the scissors is formed, and the material can be guided under the side of the fixed hammer to change the direction of material movement and increase the material to the sieve hole.
  • the component of the movement in the direction of the line is advantageous for improving the pulverization efficiency and further improving the uniformity of the pulverized material.
  • FIG. 1 is a schematic structural view of a first embodiment of the present invention.
  • Figure 2 is a schematic cross-sectional view of A-A of Figure 1.
  • Figure 3 is a schematic view showing the structure of a second embodiment of the present invention.
  • Figure 4 is a schematic cross-sectional view of B-B of Figure 3.
  • FIG. 5 is a schematic structural view of a fixed hammer frame according to an embodiment of the present invention. detailed description
  • the pulverizer shown in Fig. 1 and Fig. 2 is a horizontal pulverizer, which comprises a feed port 1, a hammer 2, a rotor 3, a fixed hammer frame 4, a fixed hammer 5, a motor 6, and a discharge port 7,
  • the body 8, the sieve 9 and its crushing frame 13 and the like are composed.
  • the fixed hammer frame 4 has an annular plate shape with a hole in the middle, and the hole diameter is larger than the diameter of the rotor so that the fixed hammer plate frame does not contact the rotor 3, and the upper portion and the lower portion of the annular periphery extend outward to form the protruding portions 4-1 and 4. -2, respectively connected to the body 8 at the appropriate positions of the pulverizer feed port 1 and the pulverizer lower groove 10, and five fixed hammer plates are disposed between the hammer pieces 2 and the rotation plane of the hammer piece 2 Parallel installation, six fixed hammers 5 are arranged around the annular periphery of each fixed hammer frame 4.
  • the fixed hammer 5 is bolted to the fixed hammer frame 4, and the fixed hammer 5 is opposite to the rotating plane of the hammer 2 Holding a 5 mm pitch, the fixed hammer 5 protrudes from the ring portion of the hammer frame, and the isosceles trapezoid is used.
  • the cutting edge 5-1 of the fixed hammer 5 and the side edge 2-1 of the hammer 2 are perpendicular to the rotating shaft of the rotor 3.
  • the angle ⁇ on the plane is preferably 30 degrees. Adjusting the fixed hammer fixing bolt can adjust ⁇ in the position of the elliptical hole of the fixed hammer frame.
  • the high-strength alloy steel can be used as the contact portion between the fixed hammer 5 and the hammer 2 and the material.
  • the hammer 2 is divided into 4 groups, and each group of hammers is fixed by a spacer sleeve.
  • each group of hammers is fixed by a spacer sleeve.
  • the fixed hammer 5 and the hammer 2 rotate in a plane, and the fixed hammer 5 and the hammer 2 are in the shape of a scissors, when the material is fed from the material.
  • the mouth 1 enters it is hammered by the hammer 2 and collides with the fixed hammer 5.
  • the fixed blade side edge 5-1 which is in contact with the hammer piece 2 has an angle ⁇ of 30 degrees with the hammer blade edge 2-1, and the side surface of the fixed hammer faces the abduction state facing the sieve piece, so that the material is hammered.
  • the hammering and shearing of the piece and the hammer are more favorable for the movement to the direction of the sieve hole, thereby facilitating the passage of the material through the sieve hole.
  • FIG 3 and Figure 4 show another embodiment of the present invention.
  • the pulverizer is a horizontal pulverizer, and its basic structure is the same as that of the embodiment shown in Figs. 1 and 2, and the sifter is mounted on the sifter frame, but the vibration motor 1 is provided below the sifter frame 13
  • the vibration motor is connected with the pressure sieve frame, and the pressure sieve frame and the sieve plate thereof are separated from the body 8 by a vibration isolation device such as a spring 12, so that the sieve plate 9 and the pressure sieve frame 13 can vibrate independently, and the sieve plate 9 It does not touch the fixed hammer 5 and does not touch the hammer 2.
  • the screen 9 has an amplitude of 1 - 5 mm and a vibration frequency of 50 Hz.
  • a projection 4-1 is provided on the upper portion of the fixed hammer frame, and a bolt hole is provided in the lower portion of the fixed hammer frame and is connected to the body 8 by bolts.

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Pulverization Processes (AREA)

Description

剪式锤片粉碎机
技术领域
本发明涉及一种用于饲料、 食品、 化工、 医疗等行业的粉碎设备， 尤其是 涉及一种剪式锤片粉碎机。 背景技术
锤片式粉碎机通常由进料口、 机体、 转子、 锤片、 筛片及其压筛架、 电机、 出料口等组成， 工作时， 由电机带动转子， 使转子上的锤片旋转， 物料从进料 口进入后被锤片不断锤击而粉碎， 粉碎后的物料粉粒穿过筛片的筛孔， 从粉碎 机出料口排出。 现有技术的粉碎机存在以下问题：
1.物料从粉碎机进料口进入时方向朝下， 粉碎机锤片以切线运动方向锤击 物料， 对物料的锤击相对速度大， 虽然有利于提高粉碎效率， 但物料进入后即 随锤片同向运动， 锤片对物料的相对速度明显减小，而粉碎机锤片对物料的相 对速度大才有利提高粉碎效率。
2.粉碎机为提高粉碎效率，锤片须有很大的运动速度， 对动植物类物料一 般需 100米 /秒左右，在对应筛片弧长的区域，物料在锤片带动下作同向运动， 也在 50-100 米 /秒左右， 而通常物料在筛表面的运动速度希望较低， 这样物 料沿圆周的切线方向在筛孔表面经过时， 容易获得机会和足够的时间穿过筛 孔， 使得产量和被粉碎物料的均匀度都提高。 根据目前常用的筛孔直径和筛片 厚度来分析， 物料粉粒在 1一 20米 /秒时过筛效果会更好， 可以明显提高产量 和改善粉粒的均匀度，但现有粉碎机不能同时兼顾锤片高速度和筛表面物料低 速度。
3.物料运动是沿筛表面的切线方向， 而物料出筛孔是在筛表面的法线方向， 这不利出料。
长期以来， 上述问题是困扰粉碎机技术进一步提高的关键难题。 发明内容
本发明目的在于克服上述现有技术缺陷， 提供一种可有效提高粉碎效率和 改善粉粒均匀度的剪式锤片粉碎机。
本发明的目的通过以下技术方案来实现的， 一种剪式锤片粉碎机， 主要包 括进料口、 锤片、 转子、 筛片及其压筛架、 出料口、 机体、 电机， 还包括定锤 板架和设置于定锤板架上的定锤， 所述定锤板架固定在机体上，定锤固定在定 锤板架上， 定锤与锤片旋转平面平行相对安装，且有一间距。 锤片旋转时， 不 会与定锤板架及定锤相接触。 当物料进入时， 受锤片锤击后形成一旋转的物料 环，物料环撞击定锤后物料被再次粉碎，同时定锤也减低了物料环旋转速度， 低 速的物料在筛表面运动， 有利粉粒穿过筛孔。
筛片安装在压筛架上， 压筛架的下方可设置振动电机， 该振动电机与压筛 架相连接。 通过弹簧等隔振装置使压筛架与机体隔开， 使得筛片及其压筛架能 独立振动， 筛片和定锤不碰， 也与锤片不相碰。 筛片振动时， 使筛孔不断得到 清理， 大大提高被粉碎物料的过筛能力， 有效改善筛堵现象。
定锤与锤片旋转平面的间距为 1-50 毫米比较合适， 这个间距大小视物料 粉碎要求而定， 较细的粉粒， 可以选较小的间距。 间距可通过调节锤片隔离套 的宽度予以调整，更换不同宽度的锤片隔离套，可以达到改变定锤与锤片旋转 平面间距的目的， 或者通过调整定锤的厚度对此间距予以调节。
定锤板架上的定锤数量为一个或多个， 定锤为片状， 其平面形状可以是三 角形或梯形或多边形或圆弧形的任意一种或者它们之间的组合。 定锤可悍接在 定锤板架上， 也可以采用可拆式， 如通过螺栓螺接在定锤板架上。 定锤与锤片 相迎时两者相迎刃口之间在转子旋转轴的垂直平面上呈一锐角 β。 这样， 定锤 与锤片的相迎就呈剪刀形，有利提高对物料的剪切粉碎效果。 由于定锤的设置， 起到了阻挡物料运动作用， 锤片对物料相对锤击速度加大， 同时， 在定锤对应 的筛片表面物料运动速度下降，有利出料。 而且，物料又能在锤片和定锤锐角 β 导引作用下，产生了朝筛孔方向的分力，使物料朝筛孔方向运动。 上述锐角 β一 般在 1 0 -60 度较佳， 且可以根据实际情况予以调整。 比如可通过固定定锤的 螺栓进行调节，在定锤板架上预留可供螺栓调节的螺孔空隙，可在一定范围内 调节角度等等。 当然， 定锤与锤片相迎时两者刃口也可呈平行状态。 锤片可以 顺时针旋转， 也可逆时针旋转， 故定锤一般是左右对称形状， 以使定锤两侧都 可与锤片相迎。
定锤板架数量根据粉碎机内腔的宽度可为一个或一个以上， 定锤板架常为 板状， 与锤片旋转平面平行设置。 定锤板架可以是中间通孔的环形板状， 孔的 直径大于转子直径， 以使定锤板架不与转子接触。 定锤板架周边设置一个或多 个定锤， 并在定锤板架的环状周边向外延伸设置一个或多个突出部， 所述突出 部与机体相连接， 以将定锤板架固定于粉碎机机体之上。
为增加耐磨性和靭性， 定锤及定锤板架可以采用高强度合金钢制成， 或者 在普通钢表面悍接高强度合金钢制成。
本发明可运用于卧式粉碎机， 也可运用于立式粉碎机或者其它类型的粉碎 机。
按上述结构配置的装有定锤板架和定锤的粉碎机，不仅在粉碎机口而且在 对应筛片弧长的区域， 粉碎机锤片都能对物料保持较大的相对速度差， 同时兼 顾锤片高速度和筛表面物料低速度， 锤片转动与定锤交叉相迎时， 形成剪刀形 夹角，物料能在定锤侧面引导下，改变物料运动方向， 增加物料向筛孔的法线方 向运动的分力， 从而有利于提高粉碎效率， 进一步改善被粉碎物料的均匀度。 附图说明
图 1为本发明第一实施例结构示意图。
图 2为图 1中 A-A的剖面示意图。
图 3为本发明第二实施例结构示意图。
图 4为图 3中 B-B的剖面示意图。
图 5为本发明实施例中定锤板架结构示意图。 具体实施方式
下面结合附图与具体实施方式对本发明作进一步的详细描述：
如图 1、 图 2所示的粉碎机， 其为卧式粉碎机， 由进料口 1、 锤片 2、 转子 3、 定锤板架 4、 定锤 5、 电机 6、 出料口 7、 机体 8、 筛片 9及其压筛架 13等 组成。
定锤板架 4呈中间含孔的环形板状， 孔直径大于转子直径以使定锤板架不 与转子 3接触， 其环状周边的上部和下部向外延伸形成突出部 4-1和 4-2， 分 别在粉碎机进料口 1和粉碎机下槽 10的适当位置与机体 8连接固定，定锤板架 为 5个， 设置于各锤片 2之间并与锤片 2的旋转平面平行安装， 在每个定锤板 架 4环形周边设置 6个定锤 5。
定锤 5采用螺栓螺接于定锤板架 4上，定锤 5与锤片 2旋转平面相对且保 持 5毫米间距，定锤 5突出定锤板架环边部分采用等腰梯形， 定锤 5的刃口 5- 1 与锤片 2侧面刃口 2-1相迎时在转子 3旋转轴的垂直平面上夹角 β最好为 30 度。 调节定锤固定螺栓在定锤板架的椭圆孔位置可对 β进行调节。 定锤 5以及 锤片 2与物料相迎接触部分可采用高强度合金钢。
锤片 2分为 4组安装，每组锤片之间采用隔离套进行固定。锤片 2旋转时， 不会与定锤板架 4及定锤 5相接触， 定锤 5与锤片 2旋转平面相对， 定锤 5与 锤片 2相迎呈剪刀形，当物料从进料口 1进入时， 受锤片 2锤击并与定锤 5撞 击， 物料受阻后，有利提高与锤片相当锤击速度，有效提高对物料的粉碎效率， 物料在定锤 5 阻挡下， 在定锤对应的筛片 9表面物料运动速度下降，利于物料 穿过筛孔， 提高产量和均匀度。 而且， 与锤片 2相迎的定锤侧面刃口 5-1与锤 片刃口 2-1有 30度的夹角 β， 且定锤侧面呈面向筛片的外展状态， 这样， 物 料在锤片与定锤锤击及剪切下， 更有利于产生向朝筛孔方向的运动，从而更利 于物料穿过筛孔。
图 3， 图 4所示的是本发明的另一实施例。 该粉碎机为一种卧式粉碎机， 其基本结构与图 1、 图 2 中所示实施例相同， 筛片安装在压筛架上， 但在压筛 架 13 的下方设有振动电机 1 1， 该振动电机与压筛架相连接， 通过弹簧 1 2等 隔振装置将压筛架及其筛片与机体 8隔开， 使得筛片 9及其压筛架 13能独立 振动， 筛片 9和定锤 5不接触， 也与锤片 2不相碰。筛片 9的振幅在 1 -5毫米， 振动频率为 50赫兹。 在振动电机 1 1作用下可以使筛片振动， 从而改善堵筛现 象， 对小筛孔细粉料高水分高纤维等物料的粉碎， 效果特别明显。 此外， 在定 锤板架的上部设置突出部 4-1， 定锤板架下部设有螺栓孔并通过螺栓与机体 8 连接。
以上所述， 仅是本发明的较佳实施例而已， 并非对本发明作任何形式上的 限制， 凡是依据本发明的技术实质对以上实施例所作的任何简单修改、 等同变 化或修饰， 均属于本发明技术方案的范围之内。

Claims

权 利 要 求
1.一种剪式锤片粉碎机， 主要包括进料口 （1) 、 锤片 （2) 、 转子 （3) 、 筛片 （9) 及其压筛架 （13) 、 出料口 （7) 、 机体 （8) 、 电机 （6) ， 其特征 在于， 还包括定锤板架 （4) 和设置于定锤板架 （4) 上的定锤 （5) ， 定锤板 架 （4) 连接于机体 （8) 上， 定锤 （5) 与锤片 （2) 的旋转平面相对且有一间 距。
2.如权利要求 1所述的剪式锤片粉碎机， 其特征在于压筛架 （14) 的下方设 有振动电机， 该振动电机 （11) 与压筛架 （13) 相连接， 通过弹簧 （12) 等隔振 装置使压筛架其及筛片 （9) 与机体 （8) 相隔开， 筛片 （9) 及其压筛架 （13) 能独立振动。
3.如权利要求 1或 2所述的剪式锤片粉碎机， 其特征在于， 所述定锤 （5) 与锤片 （2) 旋转平面的间距为 1-50毫米。
4.如权利要求 1或 2所述的剪式锤片粉碎机， 其特征在于， 所述定锤 （5) 与锤片 （2) 旋转平面的间距可通过更换不同宽度的锤片隔离套或者调整定锤 的厚度来实现。
5.如权利要求 4 所述的剪式锤片粉碎机， 其特征在于， 所述的定锤 （5) 为片状， 平面形状可以是三角形或梯形或多边形或圆弧形的任意一种， 也可以 是它们之间的组合。
6.如权利要求 1或 2所述的剪式锤片粉碎机， 其特征在于， 所述定锤 （5) 与锤片 （2) 相迎时两者相迎刃口在转子 （3) 旋转轴的垂直平面上呈一锐角。
7.如权利要求 6所述的剪式锤片粉碎机， 其特征在于， 所述锐角为 10-60 度。
8.如权利要求 1 或 2所述的剪式锤片粉碎机，其特征在于， 所述的定锤板 架 （4) 为板状，与锤片 （2 ) 旋转平面平行设置。
9.如权利要求 8所述的剪式锤片粉碎机，其特征在于， 所述的定锤板架 （4) 呈中间通孔的环形， 所述通孔的直径大于转子的直径， 环形周边设置一个或多 个向外延伸的突出部 （4-1、 4-2 ) ) ， 上述突出部与机体 （8 ) 相连接。
PCT/CN2010/073197 2009-05-26 2010-05-25 剪式锤片粉碎机 WO2010135982A1 (zh)

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CN114768953A (zh) * 2021-10-29 2022-07-22 江阴市锦绣江南环境发展有限公司 一种垃圾焚烧前置破碎装置

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