CN218944790U - Three-dimensional stirring vane and silt mixer - Google Patents

Abstract

The utility model discloses a three-dimensional stirring blade, which belongs to the technical field of stirring equipment and comprises a first part and a second part, wherein the first part is provided with a first working surface which is in contact with materials, and the first working surface is used for pushing the contacted materials to a discharging direction; the second part is provided with a second working surface which is contacted with the material, the second working surface is used for pushing the contacted material to the feeding direction, and the area of the first working surface is larger than that of the second working surface. The three-dimensional stirring vane of this application has first working face and the second working face that are used for respectively advancing the material to ejection of compact direction and incoming material direction, and the area of first working face is greater than the second working face, this makes this three-dimensional stirring vane can constantly push away little material to the feeding when conveying most material to ejection of compact direction, improves the stirring effect when carrying the material.

Description

Three-dimensional stirring vane and silt mixer

Technical Field

The utility model belongs to the technical field of stirring equipment, and particularly relates to a three-dimensional stirring blade and a sludge mixer.

Background

Untreated sludge is usually in a lump or in a large block state, even if the sludge is obtained by sludge pretreatment equipment, the sludge is usually in a large-size strip shape, a large-size block shape and the like, and the sludge is difficult to be directly and forcedly stirred and mixed with other substances in subsequent application, so that the raw sludge or the strip-shaped and block-shaped sludge obtained by pretreatment needs to be dried in order to ensure that the mixing of the materials in the later stage is normally carried out. The drying treatment process is generally to add some medicaments (drying agents) into the sludge, crush and stir the sludge by special equipment, crush the large sludge into small sludge, and mix the drying agents on the surface of the small sludge as uniformly as possible, thereby realizing the purpose of carrying out the primary drying treatment on the surface of the sludge.

The stirring blade used in the existing sludge drying treatment process is mainly used for conveying materials, the stirring effect is relatively poor, the materials and the agents cannot be fully mixed, the drying effect is poor, and the original or pretreated massive sludge cannot be effectively crushed, so that the treatment effect is poor.

Chinese patent document CN212669530U discloses a dosing stirring screw conveyor integrated machine for sludge treatment, stirring blades adopted in the integrated machine are helical blades, a plurality of drug outlet channels are arranged on the helical blades, inlets of the drug outlet channels are arranged at the joint of the helical blades and a rotating shaft, outlets of the drug outlet channels are arranged on the surface of the helical blades, the channels are arranged inside the helical blades, when sludge is conveyed, medicines are input into the rotating shaft through a drug inlet chamber, the medicines flow out through each drug outlet channel, and the sludge is in stirring contact with the flowing-out medicines in the conveying process, so that conveying is completed, and uniform dosing stirring is realized. Although the device can realize the homogeneity to the medicament mix, the device structure is complicated, need process the play medicine passageway with hollow pivot's inside intercommunication in helical blade inside, and in practical application in-process, high viscosity's silt is very easy with the channel export jam.

In view of this, it is necessary to develop a stirring blade having a better effect, which can effectively improve the mixing effect while playing a role in transportation.

Disclosure of Invention

In order to solve the problem that stirring vane used in the sludge drying treatment process is generally mainly used in the conveying function of materials, the stirring effect is relatively poor, the materials and the medicaments cannot be fully mixed, the drying effect is poor, and the original or pretreated massive sludge cannot be effectively crushed, so that the treatment effect is poor, the application provides a three-dimensional stirring vane and a sludge mixer.

In a first aspect, the present utility model provides a three-dimensional stirring vane comprising a fixed connection

The first part is provided with a first working surface which is contacted with the material and is used for pushing the contacted material to the discharging direction; and

the second part is provided with a second working surface which is contacted with the material, the second working surface is used for pushing the contacted material to the feeding direction, and the area of the first working surface is larger than that of the second working surface.

Preferably, the connection position of the first part and the second part forms a cutting line, and the cutting line cuts and breaks materials in the rotation process of the three-dimensional stirring blade.

Preferably, the first part and the second part are welded and fixed or integrally designed, so that a cutting line is formed at the connecting position of the first part and the second part to cut and crush the materials.

Preferably, the included angle between the first working surface and the second working surface is alpha, 0 degrees < alpha <180 degrees; preferably, 60 ° < α <120 °; further preferably, α=90°.

Preferably, the first part comprises a flat plate part, the height of the flat plate part is h1, the height of the second part is h2, and h1 is more than h2; the bottom of the flat plate part is used for installing the three-dimensional stirring blade, and the second part is fixedly connected to one end of the top of the flat plate part. The second part has smaller height and is arranged at the top of the flat plate part, and a notch can be formed below the second part, so that stirring resistance is reduced.

Preferably, a notch for accommodating the mounting part is formed in the bottom of the flat plate portion.

Preferably, the top of the flat plate portion extends to a side remote from the second portion to form a leaf tip. The blade tip portion can be arranged to increase the area of the first working surface and reduce stirring resistance.

Preferably, the maximum height of the tip is h3, h3 < h2.

Preferably, the upper edges of the flat plate portion and the tip portion in the first portion form a continuous arc protruding upward. The arcuate arrangement increases the area of the first working surface without excessively increasing the agitation resistance.

Preferably, the second portion tapers from a side closer to the first portion to a side farther from the first portion.

In a second aspect, the present utility model provides a sludge mixer comprising:

the mixing container is internally provided with a processing section extending along an axis A, two ends of the processing section are respectively provided with a feed inlet and a discharge outlet, and one end close to the feed inlet is provided with a medicine adding port;

the stirring assembly comprises a rotating shaft body arranged along an axis A, wherein at least part of the rotating shaft body is provided with three-dimensional stirring blades at intervals, the first working face of each three-dimensional stirring blade faces towards one end of a discharge hole, and the second working face of each three-dimensional stirring blade faces towards one end of a feed hole.

Preferably, the included angles between the first working surface and the second working surface and the axis a are β1 and β2, respectively, and β1=β2.

Preferably, the three-dimensional stirring blades are spirally arranged on the rotating shaft body.

Preferably, the rotating shaft body comprises a first section close to the feed inlet and a second section close to the discharge outlet, and two-dimensional pushing blades and three-dimensional stirring blades are respectively arranged on the first section and the second section; the two-dimensional propelling blades and the three-dimensional stirring blades are spirally arranged on the rotating shaft body.

Preferably, the first section corresponds to the feeding hole, the length of the first section corresponds to the feeding hole, that is, only two-dimensional propelling blades are arranged at the corresponding position of the feeding hole, and after the two-dimensional propelling blades rapidly push the sludge material into the processing space, the three-dimensional stirring blades stir and convey the sludge material.

Preferably, the cross section of the two-dimensional propelling blade is in a T shape, the included angle between the T-shaped cross section and the axis A is gamma, and the gamma is 30-60 degrees; preferably, the γ is 45 °.

Compared with the prior art, the utility model has the beneficial effects that:

(1) The three-dimensional stirring vane of this application has first working face and the second working face that are used for respectively advancing the material to ejection of compact direction and incoming material direction, and the area of first working face is greater than the area of second working face, this kind of design makes this three-dimensional stirring vane can constantly push away little part material to the direction of feed when wholly conveying most material to ejection of compact direction to make the material (including the medicament) that is located between two adjacent three-dimensional stirring vane can obtain effectual mixing, thereby strengthen the stirring effect when carrying the material, improve stirring effect.

(2) The first part and the second part of three-dimensional stirring vane of this application are connected and are formed the cutting line, and this cutting line can cut the breakage to the material at three-dimensional stirring vane's rotatory in-process to not only make first part and second part play effectual feed divider effect, still help carrying out the breakage to the bulk silt, obtain the silt treatment material that the particle diameter is littleer.

(3) The contained angle between the first working face and the second working face in this application is preferably 90, and the contained angle is too big then is unobvious to the cutting crushing effect of silt, and the contained angle is too little then to the effect of feed direction and ejection of compact direction dialling material unobvious, and the contained angle is 90 can both ensure cutting effort, can produce higher dialling material volume again, strengthens the mixed effect of material between two three-dimensional stirring vane.

(4) The second part (being close to the incoming material direction) of this application three-dimensional stirring vane highly is less than first part (being close to the ejection of compact direction) for the below of second part forms the breach, and this kind of design can effectively reduce stirring resistance when reducing second part area.

(5) This application three-dimensional stirring vane's first part sets up the leaf tip and increases the area of first part in the one side that the second part was kept away from to dull and stereotyped portion, and not through the mode of whole widening of dull and stereotyped portion increase the area of first part, this kind of design can dodge the space in tip below formation, can effectively reduce stirring resistance in the increase area.

(6) The silt mixer of this application arranges three-dimensional stirring vane on the axis of rotation body, constitute first working face and second working face in three-dimensional stirring vane's the first part and the second part when rotating along with rotating the pivot, except driving the material and rotating and realizing the stirring function, can also exert axial thrust to the material, and the material volume of first working face direction propelling movement is more than the material volume of second working face direction propelling movement of feed inlet, make the whole material carry to the discharge outlet direction, simultaneously, the back pushing action of second working face makes the material of back pushing fully mix with the material of the first working face forward propelling movement of adjacent three-dimensional stirring vane (including the medicament of adding from the medicine mouth), play better desiccation effect, thereby realize even, abundant mixing between material and the medicament when realizing high-efficient material transmission effect, make the better performance of medicament, thereby help obtaining the silt treatment material that the particle diameter is less.

(7) The contained angle between this application first working face and second working face and axis A of axis of rotation body equals, makes the cutting line that first part and second part connection formed can exert and can be about axial cutting action at the rotation in-process, and is more excellent to the cutting crushing effect of silt.

(8) The application sets up two-dimensional propulsion blade on being close to the first district section of feed inlet, sets up three-dimensional stirring vane on being close to the second district section of discharge gate, and two-dimensional propulsion blade helps promoting the material forward fast and participates in the stirring, not only can avoid the material of feed inlet to pile up, can effectively improve treatment effeciency moreover.

Drawings

FIG. 1 is a perspective view of a sludge mixer of the present utility model;

FIG. 2 is a cross-sectional view of the sludge mixer of the present utility model;

FIG. 3 is a schematic view of a portion of the structure of the stirring assembly of the present utility model;

FIG. 4 is a schematic view of a two-dimensional propulsive blade of the present utility model;

FIG. 5 is a top plan view of a two-dimensional propulsive blade of the present utility model;

FIG. 6 is a schematic view of a three-dimensional stirring vane according to the present utility model;

FIG. 7 is a schematic diagram of a three-dimensional stirring vane according to the present utility model;

FIG. 8 is a schematic view of a three-dimensional stirring vane according to the present utility model;

FIG. 9 is a top view of a three-dimensional stirring vane of the present utility model;

FIG. 10 is a top plan view of a three-dimensional stirring vane of the present utility model;

FIG. 11 shows a processed material obtained by mixing sludge and a medicament by a mixer provided with two-dimensional propelling blades and three-dimensional stirring blades;

fig. 12 shows a treated material obtained by stirring and mixing sludge and a chemical in a mixer using only T-shaped two-dimensional impeller blades.

In the figure: 100. a mixing vessel; 101. a feed section; 101a, a feed inlet; 102. a pre-conveying section; 103. a feeding section; 103a, a discharge hole; 103b, a starting end; 103c, a terminal; 104. a treatment section; 105. a medicine adding port; 200. a stirring assembly; 201. a rotating shaft body; 202. a two-dimensional propulsion blade; 202a, a first end; 202b, a second end; 203. a main body portion; 203a, a connection end; 203b, a free end; 204. an extension; 205. three-dimensional stirring blades; 206. a first portion; 206a, a first working surface; 206b, a flat plate portion; 206c, blade tip portion; 207. a second portion; 207b, a second working surface; 207c, outer edges; 207d, inner edge; 208. cutting lines; 209. a power assembly; 300. a connection assembly; 301. rectangular groove body; 302. a hollow cylinder; 303. a central column; 400. a support frame body; 500. stirring blade I; 501. stirring blade II.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

6-7, including fixed connection's first part 206 and second part 207, first part 206 has with the material contact and be used for with the material to the first working face 206a of ejection of compact direction impel of material that contacts, second part 207 has with the material contact and be used for with the material to the second working face 207b of advancing of material that contacts, first working face 206 a's area is greater than the area of second working face 207b, makes three-dimensional stirring vane push more material to ejection of compact direction simultaneously, to the material direction propelling less material that comes, on the one hand can realize the effect of material from the material direction to ejection of compact direction transport, on the other hand can suitably lengthen the stirring time, improves stirring effect.

In a specific embodiment, as shown in fig. 7, the edge position of the first portion 206 connected to the second portion 207 is used to form a cutting line 208, and the cutting line 208 can cut the material during the rotation of the three-dimensional stirring blade, so that the strip or bulk sludge material can be effectively crushed, and thus the treated material with smaller particle size can be obtained.

In a specific embodiment, as shown in fig. 9, the first working surface 206a and the second working surface 207b have an included angle α, and the first portion 206 and the second portion 207 are each in a flat plate structure, that is, the included angle α between the first portion 206 and the second portion 207 is α, and 0 ° < α <180 °; in specific embodiments, preferably 60 ° < α <120 °; further preferably α=90°. The cutting and crushing effects on the sludge are not obvious when the included angle is too large, the material stirring effects on the incoming material direction and the discharging direction are not obvious when the included angle is too small, the included angle is 90 degrees, the cutting acting force can be guaranteed, the higher stirring quantity can be generated, and the mixing effect of the materials between the two three-dimensional stirring blades is enhanced.

In a specific embodiment, as shown in fig. 6, the first portion 206 includes a flat plate portion 206b, the flat plate portion 206b has a height h1, and the second portion 207 has a height h2, h1 > h2; the bottom of the plate portion 206b is used to mount the three-dimensional stirring blade on the apparatus, and the second portion 207 is fixedly connected to one end of the top of the plate portion 206b, so that a gap which is not in contact with the material is formed below the second portion 207, which is helpful for reducing stirring resistance.

In a specific embodiment, as shown in fig. 6, the top of the flat plate portion 206b extends to a side far from the second portion 207 to form a tip portion 206c, the maximum height of the tip portion 206c is h3, h3 < h2, and the provision of the tip portion 206c helps to increase the area of the first working surface 206a, but due to the relatively narrow tip portion 206c helps to reduce stirring resistance during stirring of the sludge. In addition, the narrower blade tip 206c may enhance the splitting effect on the sludge, facilitating cutting and crushing of large sludge.

A sludge mixer (hereinafter referred to as mixer) for drying raw sludge or large-sized strip-like and block-like sludge outputted from a sludge impurity separating apparatus (not shown) to dry and crush the same into small particles for subsequent stirring and mixing operations.

Referring to fig. 1 and 2, the above-mentioned mixer body is composed of a mixing vessel 100 and a stirring assembly 200, wherein the mixing vessel 100 includes a feeding section 101 and a feeding section 103, the top end of the feeding section 101 is provided with a feeding port 101a for receiving raw sludge or pretreated sludge outputted from an external sludge impurity separating apparatus, the feeding port 101a is adapted to a discharging port of the sludge impurity separating apparatus in order to be able to better receive sludge outputted from the sludge impurity separating apparatus in the case of receiving pretreated sludge outputted from the external sludge impurity separating apparatus, the feeding port 101a is preferably square in shape, while the feeding section 101 is formed with an approximately cylindrical pre-conveying section 102 below the feeding port 101a, and the pre-conveying section 102 extends substantially in the direction of the axis a.

Referring to fig. 1 and 2, the feeding section 103 is generally cylindrical, the axis and the axis a of the feeding section 103 are coincident and extend along the axis a, so that an approximately cylindrical treatment section 104 is formed inside the feeding section 103, the treatment section 104 and the pre-conveying section 102 are communicated, and together form a processing section of the mixing container 100, and the feeding section 103 is provided with a discharge port 103a at an end far from the feeding section 101, correspondingly, one end of the feeding section 103 at the position of the discharge port 103a is marked as a terminal 103c, the other end (i.e. the end near the feeding section 101) is marked as a starting end 103b, the feeding section 103 is provided with a chemical adding port 105 at least at the position of the starting end 103b, so as to add chemicals such as lime into the sludge to be treated, so as to dry the lime, and simultaneously the chemical adding ports 105 can also be arranged at intervals along the length direction of the feeding section 103, when in use, the sludge to be treated enters from the position of the feeding section 101a and falls into the pre-conveying section 102, one end of the feeding section 103 is marked as a terminal 103c, the other end (i.e. the end near the feeding section 101) is marked as a starting end 103b, the end is marked as a reagent adding port 103b, the chemical adding port 105 is added into the chemical adding port 103b at the position of the starting end 103b, and the chemical adding port 103b is gradually contacting the chemical adding port 104, and the chemical adding port 104 into the chemical adding port 104 and the chemical adding port, and the chemical adding port 104 is carried out in the chemical adding direction and the chemical adding section and drying section step is fully in the drying section and the drying section has the drying process.

Referring to fig. 2 and 3, the stirring assembly 200 includes a rotating shaft 201 disposed along an axis a, the rotating shaft 201 having a length capable of covering at least the pre-conveying section 102 and the processing section 104, and correspondingly, a portion of the rotating shaft 201 located in the pre-conveying section 102 is denoted as a first section, a portion of the rotating shaft 201 located in the processing section 104 is denoted as a second section, and at least one stirring blade is disposed on the rotating shaft 201 at intervals. In a specific embodiment, the stirring blades are helically distributed on the rotating shaft 201 to enable a better feeding of the sludge to be achieved in the feeding zone. More specifically, the above-described stirring blades are divided into two types in total, and different sections of the rotation shaft body 201 are distributed, and are arranged in the same or different densities in the respective sections, and the stirring blades provided on the first section and the second section are denoted as a two-dimensional pushing blade 202 and a three-dimensional stirring blade 205, respectively, and a plane perpendicular to the axis a is denoted as a reference plane for convenience of description. As can be seen from fig. 12, in the case that the two-dimensional propelling blades are used for stirring and mixing the sludge and the medicament in the first section and the second section, the obtained treatment material has more blocks with larger volume and poorer treatment effect; as can be seen from fig. 11, in the case where the first section uses two-dimensional propelling blades and the second section uses three-dimensional stirring blades to stir and mix the sludge with the chemical, the obtained treated particles having a substantially very small volume can be used directly as a filler in many scenes.

Referring to fig. 4, the two-dimensional propelling blade 202 is integrally formed as a planar plate body, specifically, the two-dimensional propelling blade 202 includes a main body 203 and an extension 204, wherein the main body 203 is substantially formed as a rectangular plate body, the rectangular plate body includes a connecting end 203a and a free end 203b, the connecting end 203a is used for being matched with a connecting assembly 300 to detachably mount the stirring blade on the rotating shaft 201, specifically, a rectangular groove 301 is formed at the connecting end 203a of the main body 203, the connecting assembly 300 includes a hollow cylinder 302 which can be mounted on the rectangular groove 301, and correspondingly, a central cylinder 303 which can be inserted into the hollow cylinder is formed on the rotating shaft 201, meanwhile, through holes which are arranged along the radial direction are formed at the corresponding positions of the hollow cylinder 302 and the central cylinder 303, when the stirring blade is required to be mounted, the hollow cylinder 302 mounted on the connecting end 203a of the main body 203 is inserted into the central cylinder 303, and then a pin is inserted into the through hole, thereby completing the mounting of the stirring blade, and the extension 204 is formed by the free ends 203b of the main body 203 to form a circular arc shape corresponding to the upper edge of the two-dimensional propelling blade 202, thereby forming a circular arc shape which is further formed by the corresponding edge of the upper edge of the two-dimensional edge 204. Referring to fig. 5, in a top view of the two-dimensional propelling blade 202 after the installation is completed, and the direction of arrow one (E1) is a sludge advancing direction, and the direction of arrow two (E2) is a rotation direction of the rotating shaft body 201, specifically, in this top view, the two-dimensional propelling blade 202 has a first end 202a and a second end 202b, wherein the first end 202a is close to the feeding direction and is upward, and the second end 202b is close to the discharging direction and is downward, so that during the rotation of the rotating shaft body 201 in the E2 direction, a surface of the two-dimensional propelling blade 202 facing the discharging port contacts with a material, and pushes the material toward the discharging port. The angle between the first and second end connecting lines coaxial line a is denoted as γ, and in a specific embodiment γ ranges from 30 ° to 60 °, preferably γ is 45 °.

Referring to fig. 6 and 7, which are perspective views of the three-dimensional stirring blade 205, the three-dimensional stirring blade 205 body is composed of two parts, respectively denoted as a first part 206 and a second part 207, which are disposed at an angle and each have a working plane, which is a plane in which the three-dimensional stirring blade 205 directly contacts the material in the processing section 104 when the three-dimensional stirring blade 205 rotates with the rotating shaft 201, the working planes of the first part 206 and the second part 207 are denoted as a first working plane 206a and a second working plane 207b, respectively, and the angle between the first working plane 206a and the second working plane 207b is denoted as a, and 0< a <180 °, preferably, 60 ° < a <120 °, more preferably, a=90° while the three-dimensional stirring blade 205 is mounted on the rotating shaft 201 in the same manner as the two-dimensional propelling blade 202 is mounted on the rotating shaft 201, that is, at least one of the first part 206 and the second part 207 is provided with a groove for installing the hollow cylinder 302, the installation of the stirring blade is realized by matching with the central cylinder 303 on the rotating shaft 201, referring to fig. 9, which is a top view of the installation of a single three-dimensional stirring blade 205 on the rotating shaft 201, it is known that, for the single three-dimensional stirring blade 205, the first working surface 206a is closer to the discharge hole 103a of the stirring system than the second working surface 207b, an acute angle exists between the coaxial line A of the edge lines of the first working surface 206a and the second working surface 207b, the angles between the coaxial line A of the first working surface 206a and the second working surface 207b are respectively denoted as beta 1 and beta 2, and alpha+beta 1+beta 2=180 DEG, when the three-dimensional stirring blade 205 rotates along the rotating shaft 201 along the direction of E2, on the one hand, the axial thrust along the direction E1 is applied to the thrust generated by the rotation of the three-dimensional stirring blade 205 to stir the material, on the other hand, the axial thrust along the direction E1 is applied to push the material to move along the direction E1 toward the discharge port, correspondingly, the amount of the material pushed by the first working surface 206a during rotation is denoted as V1, the amount of the material pushed by the second working surface 207b during rotation is denoted as V2, preferably, the area of the first working surface 206a is larger than the area of the second working surface 207b, so that the amount V1 of the material pushed by the first working surface 206a during rotation is larger than the amount V2 of the material pushed by the second working surface 207b during rotation, and the material is generally moved toward the position of the discharge port 103 a.

Describing the two adjacent stirring blades, referring to fig. 10, the two stirring blades are denoted as a first stirring blade 500 and a second stirring blade 501 along the advancing direction of the material, when the material located between the first stirring blade 500 and the second stirring blade 501 rotates along with the rotating shaft 201, the first working surface 206a of the first stirring blade 500 applies advancing force to the material contacted with the first working surface, and the second working surface 207b of the second stirring blade 501 applies backward thrust to the material contacted with the second working surface, so that the material pushed forward and the material pushed backward are mixed in a cross manner, thereby not only ensuring that the medicament is dispersed in the sludge more uniformly, improving the drying effect, but also increasing the residence time of the material in the processing section 104, increasing the mixing time and further improving the drying effect without prolonging the processing section 104 and reducing the occupied area of equipment.

Further, as shown in fig. 7, since the first working surface 206a and the second working surface 207b are disposed at an angle, after the stirring blade contacts the bulk or strip-shaped material, the material is separated into two parts at the boundary point of the first working surface 206a and the second working surface 207b, and separated along the first working surface 206a and the second working surface 207b to two sides respectively, so as to separate the bulk and the strip-shaped material into small bulk material, preferably, the first part 206 and the second part 207 are integrally disposed or welded and fixed, at this time, a cutting line 208 is formed at the connection position of the first working surface 206a and the second working surface 207b of the three-dimensional stirring blade 205, and the cutting line 208 forms a cutting body together with the first working surface 206a and the second working surface 207b, so that the material is better cut during the rotation of the stirring blade, more preferably, the included angle α=90° between the first working surface 206a and the second working surface 207b is further preferably β1=β2, so that the three-dimensional stirring blade 205 is better cut along the direction perpendicular to the cutting line during the rotation of the material.

A specific embodiment of the three-dimensional stirring blade 205 will now be given:

referring to fig. 6-8, the first portion 206 of the three-dimensional stirring vane is a substantially 7-shaped plate, specifically, the first portion 206 includes a flat plate portion 206b and a blade tip portion 206c, wherein the flat plate portion 206b is a rectangular plate, the height of the flat plate portion 206b is denoted as h1, a rectangular groove is formed at the bottom of the flat plate portion for mounting the hollow cylinder 302, the blade tip portion 206c is formed by extending the top of the side wall of the flat plate portion 206b in a direction away from the second portion 207, and at the same time, the upper edges of the flat plate portion 206b and the blade tip portion 206c form a continuous arc, the stirring resistance is reduced while the material contact area is increased, the maximum height of the blade tip portion 206c is h3, and the height of the blade tip portion 206c is decreased in a direction away from the flat plate portion 206 b; the second portion 207 has an outer edge 207c and an inner edge 207d, wherein the inner edge 207d is connected to the edge of the main body portion 206b in the first portion 206, and the height h2 of the inner edge 207d is smaller than the height h1 of the main body portion 206b, and a gap which is not in contact with the material is formed under the second portion 207 and under the tip portion 206c in the first portion 206 to reduce resistance encountered when the three-dimensional blade rotates, preferably, the height of the inner edge 207d is greater than the height of the outer edge 207c, and the bottom ends thereof are flush with each other (as shown in fig. 8), i.e., a height difference is formed between the inner edge 207d and the outer edge 207c to form an inclined slope at the upper edge of the second portion 207 to reduce stirring resistance, and preferably, a line connecting between the inner edge 207d and the outer edge 207c is a straight line to generate an arc-shaped upper edge different from the first portion 206.

Further, as shown in fig. 1, the stirring assembly 200 further includes a power assembly 209 for driving the rotating shaft 201 to rotate, specifically, the power assembly 209 includes a driving motor and a reduction gearbox, an input end of the reduction gearbox is connected with an output end of the driving motor, and an output end of the reduction gearbox is connected with an end of the rotating shaft 201, and the driving motor drives the rotating shaft 201 to rotate through the reduction gearbox.

Further, as shown in fig. 1, the mixer further includes a support frame 400 that supports the mixing vessel 100 and the power assembly 209.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (13)

1. A three-dimensional stirring vane, characterized in that: comprising a fixed connection

A first portion (206) having a first working surface (206 a) in contact with the material, the first working surface (206 a) being adapted to urge the contacted material in a discharge direction; and

a second portion (207) having a second working surface (207 b) in contact with the material, the second working surface (207 b) being adapted to urge the contacted material in a direction of feed, and the first working surface (206 a) having an area greater than the area of the second working surface (207 b).

2. The three-dimensional stirring blade of claim 1, wherein: the connection position of the first part (206) and the second part (207) forms a cutting line (208), and the cutting line (208) cuts and breaks materials during rotation of the three-dimensional stirring blade (205).

3. The three-dimensional stirring blade according to claim 1 or 2, characterized in that: the angle between the first working surface (206 a) and the second working surface (207 b) is alpha, 0 DEG < alpha <180 deg.

4. The three-dimensional stirring blade according to claim 1 or 2, characterized in that: the angle between the first working surface (206 a) and the second working surface (207 b) is alpha, 60 DEG < alpha <120 deg.

5. The three-dimensional stirring blade according to claim 1 or 2, characterized in that: the angle between the first working surface (206 a) and the second working surface (207 b) is alpha, alpha=90°.

6. The three-dimensional stirring blade according to claim 1 or 2, characterized in that: the first part (206) comprises a flat plate part (206 b), the height of the flat plate part (206 b) is h1, the height of the second part (207) is h2, and h1 is more than h2; the bottom of the flat plate part (206 b) is used for installing the three-dimensional stirring blade, and the second part (207) is fixedly connected to one end of the top of the flat plate part (206 b).

7. The three-dimensional stirring blade of claim 6, wherein: the top of the flat plate portion (206 b) extends to a side away from the second portion (207) to form a tip portion (206 c).

8. A silt mixer, characterized in that: comprising the following steps:

a mixing container (100) in which a processing section extending along an axis A is formed, wherein both ends of the processing section are respectively provided with a feed inlet (101 a) and a discharge outlet (103 a), and a dosing port (105) is formed at one end close to the feed inlet (101 a);

stirring assembly (200) comprising a rotating shaft body (201) arranged along an axis A, wherein a plurality of three-dimensional stirring blades (205) according to any one of claims 1-7 are arranged on at least part of sections of the rotating shaft body (201), the first working surface (206 a) of the three-dimensional stirring blades (205) faces one end of a discharge port (103 a), and the second working surface (207 b) faces one end of a feed port (101 a).

9. The sludge mixer of claim 8 wherein: the angles between the first working surface (206 a) and the second working surface (207 b) and the axis a are respectively beta 1 and beta 2, and the beta 1 = beta 2.

10. The sludge mixer of claim 8 wherein: the three-dimensional stirring blades (205) are spirally arranged on the rotating shaft body (201).

11. The sludge mixer of claim 8 wherein: the rotary shaft body (201) comprises a first section close to the feed inlet (101 a) and a second section close to the discharge outlet (103 a), two-dimensional propelling blades (202) and three-dimensional stirring blades (205) are respectively arranged on the first section and the second section, and the three-dimensional stirring blades (205) and the two-dimensional propelling blades (202) are spirally arranged on the rotary shaft body (201).

12. The sludge mixer of claim 11 wherein: the section of the two-dimensional propelling blade (202) is in a T shape, and an included angle between the two-dimensional propelling blade and the axis A is gamma, wherein gamma is 30-60 degrees.

13. The sludge mixer of claim 11 wherein: the section of the two-dimensional propelling blade (202) is in a T shape, the included angle between the two-dimensional propelling blade and the axis A is gamma, and the gamma is 45 degrees.

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