CN211303278U - Sludge crusher and grinding member thereof - Google Patents

Abstract

The utility model relates to a sludge crusher and grinding member thereof grinds the member and includes: a fixing member including a fixing through hole for connecting to the rotating arm; the first vertical section comprises a first end part and a second end part, and is positioned below the fixing piece and fixedly connected with the fixing piece through the first end part of the first vertical section; the inclined transition section comprises a first end part and a second end part, the inclined transition section is positioned below the first vertical section and is fixedly connected with the second end part of the first vertical section through the first end part of the inclined transition section, and the width of the first end part of the inclined transition section is greater than that of the second end part of the inclined transition section; and the second vertical section comprises a first end part and a second end part, the second vertical section is positioned below the inclined transition section and is fixedly connected with the second end part of the inclined transition section through the first end part of the second vertical section, and the width of the first vertical section is greater than that of the second vertical section.

Description

Sludge crusher and grinding member thereof

Technical Field

The utility model relates to a technical field of sludge treatment, more specifically, the utility model discloses sludge crusher and grinding member thereof.

Background

Sludge treatment processes generally require dewatering sludge to obtain lumpy sludge, which is then dried to convert the lumpy sludge into granular sludge. The drying treatment generally uses a drying device to dry sludge, and the sludge subjected to mechanical dehydration or drying treatment forms sludge particles with a certain water content for subsequent treatment, but the sludge has the characteristics of non-uniform granularity and difficult fragmentation. And influences are brought to subsequent further drying treatment, such as higher energy consumption, serious mechanical abrasion, influence on service life and the like.

A commonly used vertical sludge crusher comprises at least one set of crushing components, which comprise a rotatable component and a fixed component arranged up and down, wherein the rotatable component is located above the fixed component. The sludge blocks can be broken into small blocks or fragments through the rotation of the rotatable assembly relative to the fixed assembly, and the breaking is realized by the mutual action of gaps between the stereoscopic grinding members of the rotatable assembly and the annular members of the fixed assembly. Therefore, the structure of the three-dimensional grinding component is very important, if the clearance fit between the three-dimensional grinding component and the annular piece of the fixed component is poor, the phenomenon that the equipment is blocked by sludge easily occurs in the sludge crushing process, and the size of sludge particles after crushing is uneven, so that the continuity of the operation of the equipment is poor, the stability of the sludge after crushing is affected, and the difficulty of subsequent treatment is increased.

Therefore, there is a need for a pretreated three-dimensional grinding member that solves the problems of easy clogging of the crushing and non-uniformity in the size of the sludge particles after crushing.

SUMMERY OF THE UTILITY MODEL

According to an embodiment of the present application, there is provided an abrasive member for a sludge crusher, comprising:

a fixing member including a fixing through hole for connecting to the rotating arm;

the first vertical section comprises a first end part and a second end part, and is positioned below the fixing piece and fixedly connected with the fixing piece through the first end part of the first vertical section;

the inclined transition section comprises a first end part and a second end part, the inclined transition section is positioned below the first vertical section and is fixedly connected with the second end part of the first vertical section through the first end part of the inclined transition section, and the width of the first end part of the inclined transition section is greater than that of the second end part of the inclined transition section;

and the second vertical section comprises a first end part and a second end part, the second vertical section is positioned below the inclined transition section and is fixedly connected with the second end part of the inclined transition section through the first end part of the second vertical section, and the width of the first vertical section is greater than that of the second vertical section.

Preferably, the shape of the fixing member is rectangular.

Preferably, the shape of the fixing member is one of circular or square.

Preferably, the first vertical section is rectangular in shape.

Preferably, the first vertical section is trapezoidal in shape.

Preferably, the first vertical section is shaped as an isosceles trapezoid.

Preferably, the shape of the sloping transition section is trapezoidal.

Preferably, the shape of the oblique transition section is an isosceles trapezoid.

Preferably, the second vertical section is rectangular in shape.

Preferably, the second vertical section is trapezoidal in shape.

Preferably, the second vertical section is triangular, one side of the triangle is connected with the second end of the inclined transition section, and the other two sides of the triangle extend downwards to form a conical structure.

According to another embodiment of the present application, there is provided a vertical sludge crusher including:

the crushing device comprises a shell, at least one crushing assembly is arranged in the shell, each crushing assembly comprises a rotatable assembly and a fixed assembly, and the rotatable assembly is positioned at the upper part of the fixed assembly and can rotate relative to the fixed assembly;

the rotatable assembly comprises a rotary arm and an abrasive member as described above, the abrasive member being disposed on and extending perpendicular to the rotary arm.

The sludge pretreatment three-dimensional grinding member in the vertical sludge crusher is connected and fixed on the rotatable assembly through the cutter fixing piece and the fixing through hole, and is convenient to detach in the installation, replacement and maintenance processes.

The cutter of the three-dimensional grinding member of mud preliminary treatment in the vertical sludge crusher divide into first vertical section, slope transition section and the vertical section of second, and the slope transition section is connected to the second end of first vertical section, and slope transition section from the top down is along the inside slope of vertical direction and is connected the first end of the vertical section of second, and wherein, the width of first vertical section is greater than the width of the vertical section of second. Such a structure enables the sludge block to be broken and sheared into a desired size and shape, the sludge granularity is more uniform, and the sludge block is prevented from being blocked in a gap between the cutter and the annular piece so as not to influence the operation of the equipment.

The cutter of the three-dimensional grinding member for sludge pretreatment is divided into a first vertical section, an inclined transition section and a second vertical section, is divided into three sections to be processed and welded together, and can be integrally formed, so that the cutter is convenient to process, simple in structure, practical and reliable.

Other exemplary embodiments of the present invention will be apparent from the detailed description provided hereinafter. It should be understood that the detailed description and specific examples, while disclosing exemplary embodiments of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.

Drawings

The foregoing and other objects, features and advantages of the invention will be more fully appreciated and understood from the following detailed description of the preferred embodiments of the invention, taken in conjunction with the accompanying drawings.

Fig. 1 is a sectional view of a vertical crusher for crushing sludge lumps or granules.

Fig. 2 is a front view of a sludge pretreatment solid grinding member of the vertical sludge crusher.

Fig. 3 is a side view of a sludge pretreatment solid grinding member of the vertical sludge crusher.

Fig. 4 is a front view of another embodiment of a sludge pre-treatment stereoscopic grinding member of the vertical sludge crusher.

List of reference numerals:

1. a vertical sludge crusher;

2. a housing;

201. a feed inlet;

3. a crushing assembly;

3A, a rotatable component;

3B, fixing the assembly;

301. a grinding member;

301a, a fixing member;

301b, fixing through holes;

301c, a first vertical section;

301d, a sloped transition section;

301e, a second vertical section;

301f, triangle segment;

4. and a power input assembly.

Detailed Description

The following description is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items. It will be understood that when an element, component, and/or section is referred to as being "connected to" another element, component, and/or section, it can be directly connected to the other element, component, and/or section, or intervening elements may be present. It will be understood that, although the terms first, second, etc. may be used herein to describe various elements, components, and/or sections, these elements, components, and/or sections should not be limited by these terms. These terms are only used to distinguish one element, component or section from another element, component or section. Thus, a first element, component, or section discussed below could be termed a second element, component, or section without departing from the teachings of the present invention. Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and/or the present specification and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

Furthermore, it should be noted here that references to orientations in the present application, such as "upper", "lower", "above", "below", "upper" and "lower", are made with reference to the mounting arrangement of the vertical crusher during normal use, such as the mounting arrangement of the vertical crusher shown in fig. 1. Furthermore, all references to orientations such as "vertical" and "vertical" in this application refer to an orientation or direction perpendicular to horizontal ground along the direction of gravity.

Fig. 1 shows a vertical crusher in a sectional view. As shown, a crushing assembly 3 for crushing sludge cake is provided in the housing 2 of the vertical crusher 1. The housing 2 is arranged generally vertically and may include a barrel, a bottom of which is open downward, and a top cover at a first end of the barrel. In addition, the housing 2 may be constructed in other forms, for example, a cylinder and a top cover of the housing 2 may be integrally formed, wherein the top cover is formed as a first end portion of the cylinder whose top is closed. A feed port 201 for receiving a sludge block and a shaft hole for receiving a rotation shaft may be formed on the first end portion of the top cover or the cylinder, and the lower opening of the housing 2 is used to discharge a crushed sludge small block or fragment. Within the housing 2, near its lower opening, a crushing assembly 3 is provided, the crushing assembly 3 comprising a rotatable assembly 3A and a stationary assembly 3B, wherein the rotatable assembly 3A is located above the stationary assembly 3B and is rotatable relative thereto.

The rotatable assembly 3A comprises a rotation shaft and a rotation arm fixed to the rotation shaft. The pivot arm is cantilevered outwardly at an angle to the pivot axis, preferably extending outwardly at a right angle. For example, 2-10 rotating arms may be distributed at angular intervals around the axis of rotation. In fig. 1, two rotating arms extend radially outward from the rotating shaft symmetrically at an angle of 180 degrees. One or more grinding members 301, e.g. 2-8 grinding members, are provided on each rotary arm, which may be arranged at intervals along the length of the rotary arm or in the radial direction of the housing 2, wherein each grinding member 301 may protrude downwards perpendicular to the rotary arm, i.e. substantially parallel to the axis of the rotation axis.

It can be seen from fig. 1 that four abrasive members 301 are spaced apart on each rotating arm, it being understood that each rotatable assembly may include any suitable number of abrasive members 301, such as 2, 3, etc., without departing from the scope of the present invention. The abrasive member 301 may be formed integrally with the pivot arm or may be a separate component and secured to the pivot arm by a connection known in the art. In case the abrasive member 301 is a separate component, it is replaceable. Likewise, the rotating arm may be fixed to the rotating shaft by means of a connection known in the art. Known connection means mentioned herein may include welding, keying, bolting, plugging and the like. Alternatively, the abrasive member 301 may be in the form of a cutter.

The fixed assembly comprises a fixed support and a ring-shaped piece. The fixed bracket has a central post and one or more struts extending outwardly at an angle from the central post, the struts preferably extending outwardly at right angles from the central post. For example, 2-10 struts, which may be angularly spaced around the central post. One or more rings are positioned on the struts, preferably on at least two struts, so that the rings are stably positioned. For example 2-8 ring members, which may be arranged at intervals in the length direction of the strut or in the radial direction of the housing, and each ring member may be a circular ring or a circular segment, wherein the radius of the circular ring or the circular segment is associated with its position on the strut, i.e. the closer to the central column, the smaller the radius of the circular ring or the circular segment. It should be understood that the number of annular elements may vary without departing from the scope of the invention.

As shown in the drawings, a first end portion of the rotating shaft of the rotatable assembly 3A is rotatably disposed in a shaft hole formed in the top cover of the housing 2 for receiving the rotating shaft, and a portion thereof extending out of the shaft hole is provided with a power input member 4, such as a gear or a pulley. The power input member 4 may be coupled to an electric motor or motor by a belt or chain or the like to drive a rotating shaft. Each strut of the fixing assembly 3B is connected at one end to the central column and at its other end fixed to a wall of the housing 2, for example in an aperture formed in the wall. More than two annuli may be arranged on the strut at the same or different spacings. In other words, adjacent rings or circle segments may be separated from each other by different distances along the strut, wherein a ring or circle segment of a smaller radius is closer to the central column than an adjacent ring or circle segment of a larger radius, and each ring or circle segment stably overlaps more than two struts, thereby maintaining a certain spacing between two ring members adjacent in the length direction of the strut or in the radial direction of the housing. The abrasive members 301 on the rotating arms of the rotatable assembly 3A may project downwardly into the respective spaces between adjacent ring-shaped elements, in other words, the abrasive members 301 are provided on the rotating arms at positions corresponding to the spaces between two adjacent ring-shaped elements mounted on the struts, so that the plurality of abrasive members 301 are arranged to interleave with each other so that the abrasive members 301 may move circumferentially along the inner or outer peripheries of the ring-shaped elements within the respective spaces as the rotating shaft rotates. To contribute to the stability of the rotation axis, the rotation arms are usually arranged symmetrically with respect to the rotation axis. For example, two rotating arms are symmetrically disposed at an angle of 180 ° from each other, and there are four grinding members 301 protruding downward in the length direction of the rotating arms, wherein 4 grinding members 301 are respectively located in corresponding spaces formed between adjacent two ring-shaped members.

As shown in fig. 1, since the housing 2 is arranged vertically, i.e. perpendicular to the ground, the axis of rotation of the rotatable assembly 3A substantially coincides with the axis of the central column of the fixed assembly 3B, and the axes of the axis of rotation and the central column are substantially parallel to the longitudinal axis of the housing 2, preferably the axes of the axis of rotation and the central column coincide with the longitudinal axis of the housing. Referring to fig. 1, the width of the grinding member 301 in the length direction of the rotating arm or radial direction of the housing is smaller than the corresponding spacing between adjacent rings on the struts. In other words, the spacing between two adjacent grinding members 301 is greater than the width of the corresponding ring on the strut in the length direction thereof, so that each grinding member 301 is always located within the corresponding spacing between two adjacent rings when the rotatable assembly 3A is rotated relative to the fixed assembly 3B, so that the grinding members 301 do not interfere with the rings.

As shown in fig. 1, a vertical sludge crusher 1 includes a housing 2 and a crushing assembly 3, wherein the housing 2 is vertically arranged and has a feed opening 201 on an upper cover thereof. It should be understood that the housing 2 may also be arranged horizontally without departing from the scope of the invention.

Fig. 2 is a front view of a sludge pretreatment solid grinding member of the vertical sludge crusher, and fig. 3 is a side view of the sludge pretreatment solid grinding member of the vertical sludge crusher. As shown in fig. 2 and 3, the sludge pretreatment solid grinding member 301 includes a fixing piece 301a, a fixing through hole 301b, a first vertical section 301c, an inclined transition section 301d, and a second vertical section 301 e.

The fixing piece 301a comprises a fixing through hole 301b which can connect and fix the sludge pretreatment three-dimensional grinding member on the rotating arm, and the length direction of the fixing piece 301a is perpendicular to the longitudinal axis direction of the main shaft. As shown in fig. 2, the fixing member 301a is a rectangular block, and when the sludge pretreatment stereo grinding member 301 needs to be fixed on the rotating arm, both ends of the rectangular block of the fixing member 301a can be erected on the upper surface of the rotating arm, so that the first vertical section 301c, the inclined transition section 301d and the second vertical section 301e are vertically inserted into the rotating arm. With this arrangement, the fixing member functions to fix the sludge pretreatment solid grinding member, and the fixing member 301a may have other shapes such as a circle, a square, and the like. The length of the fixing piece 301a is 40-60mm, the width is 25-35mm, the height is 10-20mm, and the fixing through hole 301b is positioned in the middle of the fixing piece 301 a.

The first vertical section 301c has a rectangular block and comprises a first end and a second end, the first vertical section 301c is located below the fixture 301a and is fixedly connected with the first end thereof, and the first vertical section 301c is located above the inclined transition section 301d and is fixedly connected with the fixture through the first end of the first vertical section. When the sludge pretreatment stereo grinding member 301 needs to be fixed on the rotating arm, the first vertical section 301c is inserted into the rotating arm and is matched with the interface of the rotating arm, so as to stabilize the position of the sludge pretreatment stereo grinding member. The first vertical section 301c has a length of 20-, a width of 15-35mm, and a height of 50-80 mm.

The angled transition section 301d has a trapezoidal shape including a first end and a second end. The inclined transition section 301d is located below the first vertical section 301c and is fixedly connected with the second end of the first vertical section through the first end of the inclined transition section, the inclined transition section 301d is located above the second vertical section 301e and is fixedly connected with the second end thereof, the inclined transition section 301d extends from the first end with larger width to the second end with smaller width in a downward inclination manner along the longitudinal direction, forming an inclined plane, that is, the width of the first end of the inclined transition section 301d is greater than the width of the second end of the inclined transition section. The position in the middle part of slope transition section 301d is located the clearance between two ring members, and when treating that broken mud falls to between ring member and the slope transition section 301d, through broken subassembly relative rotation, the cooperation of the inclined plane of slope transition section 301d and ring member is down, can control the broken granularity of mud. The length of the first end part of the inclined transition section 301d is 20-60mm, the width of the first end part is 15-35mm, the length of the second end part is 20-40mm, the width of the second end part is 5-15mm, the height of the second end part is 70-90mm, the included angle of the inclined plane formed by the width and the height of the first end part is 50-75 degrees, and the included angle of the inclined plane formed by the width and the height of the second end part is 105-130 degrees.

The second vertical section 301e has a rectangular shape including a first end and a second end. The second vertical section 301e is located below the inclined transition section 301d and is fixedly connected with the second end of the inclined transition section through the first end of the second vertical section, and the second end is located in a gap between the two ring-shaped members, wherein the width of the first vertical section 301c is larger than that of the second vertical section 301e, when sludge to be crushed falls between the ring-shaped members and the inclined transition section 301d, the rotatable assembly of the crushing assembly rotates relative to the fixed assembly, and the sludge passing through the inclined transition section 301d is contacted with the second vertical section 301e again for crushing, so that uniform crushing is realized. The second vertical section 301e has a length of 20-40mm, a width of 5-15mm and a height of 45-55 cm.

Fig. 4 is a front view of another embodiment of a sludge-pretreating stereoscopic grinding member of a vertical sludge crusher, and the sludge-pretreating stereoscopic grinding member 301 includes a fixing piece 301a, a fixing through-hole 301b, a first vertical section 301c, an inclined transition section 301d, and a triangular section 301 f. The fixing member 301a, the fixing through hole 301b, the first vertical section 301c, and the inclined transition section 301d are similar to the embodiment shown in fig. 2 and 3, and therefore will not be described again. The second vertical section here takes the form of a triangular section 301 f. One side of the triangle is connected with the second end of the inclined transition section 301d, and the other two sides of the triangle extend downwards in a downward inclination manner along the vertical direction to form a conical structure. When the sludge to be crushed falls to the gap between the annular pieces, the triangular section 301f can hit and crush the sludge for the second time, and the sludge crushing efficiency is improved.

The working process of the crusher according to the invention is described below:

the power input part 4 is started to drive the rotatable component 3A of the crushing component 3 to rotate, so that the rotatable component 3A and the fixed component 3B rotate mutually;

the blocky or granular sludge obtained after the preorder treatment enters from a feed inlet 201 of the vertical sludge crusher 1;

blocky or granular sludge falls to the crushing assembly 3 through the action of gravity, and the sludge temporarily stays on the ring-shaped pieces, and along with the mutual rotation of the rotatable assembly 3A and the fixed assembly 3B, the sludge staying on the ring-shaped pieces is sheared and crushed through the action between the inclined transition section 301d and the second vertical section 301e of the sludge pretreatment three-dimensional grinding member 301 of the rotating arm and the two ring-shaped pieces, and the sludge meeting the granularity requirement falls from the gap between the two ring-shaped pieces;

according to the broken condition of the mud of broken subassembly 3, set up the arch on the loop forming element, improve crushing efficiency.

The sludge pretreatment three-dimensional grinding member 301 in the vertical sludge crusher 1 is connected and fixed on the rotatable component through the cutter fixing member 301a and the fixing through hole 301b, and is convenient to detach in the process of installation, replacement and maintenance.

The cutter of the sludge pretreatment three-dimensional grinding member 301 in the vertical sludge crusher 1 is divided into a first vertical section 301c, an inclined transition section 301d and a second vertical section 301e, the second end of the first vertical section 301c is connected with the inclined transition section 301d, the inclined transition section 301d is inclined inwards in the vertical direction from top to bottom and is connected with the first end of the second vertical section 301e, wherein the width of the first vertical section 301c is greater than that of the second vertical section 301 e. Such a structure enables the sludge block to be broken and sheared into a desired size and shape, the sludge granularity is more uniform, and the sludge block is prevented from being blocked in a gap between the cutter and the annular piece so as not to influence the operation of the equipment.

The cutter of the sludge pretreatment three-dimensional grinding member 301 is divided into a first vertical section 301c, an inclined transition section 301d and a second vertical section 301e, and is divided into three sections which are processed and welded together, and the cutter can also be integrally formed, so that the cutter is convenient to process, simple in structure, practical and reliable.

The present invention has been described in terms of certain preferred embodiments and variations thereon. Further modifications and alterations may occur to others upon reading and understanding the specification. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed as the best mode contemplated for carrying out this invention, but that the invention will include all embodiments falling within the scope of the appended claims.

Claims (12)

1. A grinding member for a sludge crusher, comprising:

a fixing member including a fixing through hole for connecting to the rotating arm;

the first vertical section comprises a first end part and a second end part, and is positioned below the fixing piece and fixedly connected with the fixing piece through the first end part of the first vertical section;

the inclined transition section comprises a first end part and a second end part, the inclined transition section is positioned below the first vertical section and is fixedly connected with the second end part of the first vertical section through the first end part of the inclined transition section, and the width of the first end part of the inclined transition section is greater than that of the second end part of the inclined transition section;

and the second vertical section comprises a first end part and a second end part, the second vertical section is positioned below the inclined transition section and is fixedly connected with the second end part of the inclined transition section through the first end part of the second vertical section, and the width of the first vertical section is greater than that of the second vertical section.

2. The abrasive structure of claim 1, wherein the fixture is rectangular in shape.

3. The abrasive member of claim 1, wherein the fixture is one of circular or square in shape.

4. The abrasive member of claim 1, wherein the first vertical section is rectangular in shape.

5. The abrasive member of claim 1, wherein the first vertical segment is trapezoidal in shape.

6. The abrasive member of claim 5, wherein the first vertical section is isosceles trapezoid in shape.

7. An abrasive member as defined in claim 1, wherein the oblique transition section is trapezoidal in shape.

8. The abrasive member of claim 7, wherein the oblique transition section is isosceles trapezoid in shape.

9. The abrasive member of claim 1, wherein the second vertical section is rectangular in shape.

10. The abrasive member of claim 1, wherein the second vertical section is trapezoidal in shape.

11. An abrasive element as defined in claim 1, wherein the second vertical segment is triangular in shape, one side of the triangle being connected to the second end of the angled transition segment, the other two sides of the triangle extending obliquely downward to form a tapered configuration.

12. The utility model provides a vertical breaker of mud which characterized in that includes:

the crushing device comprises a shell, at least one crushing assembly is arranged in the shell, each crushing assembly comprises a rotatable assembly and a fixed assembly, and the rotatable assembly is positioned at the upper part of the fixed assembly and can rotate relative to the fixed assembly;

the rotatable assembly comprising a rotary arm and an abrasive member as claimed in any one of claims 1 to 11, the abrasive member being disposed on and extending perpendicular to the rotary arm.

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