A new type of stirring shaft for horizontal mixer

Abstract

The present invention relates to a novel horizontal mixer stirring shaft, which is composed of a horizontal stirring shaft and a spiral mixing blade fixed thereon. The mixing blade is arranged in multiple sections non-continuously, and the sections of the main mixing blades adjacent to each other in front and behind and intermittently arranged along the axial direction of the horizontal stirring shaft are staggered in sequence at a certain angle along the radial direction of the main shaft, and a return mixing blade is arranged in the middle of the angle between the two sections of the main mixing blades adjacent to each other along the axial direction of the horizontal stirring shaft. The main mixing blade and the return mixing blade are adopted to prevent the flexible strip material from being easily entangled or entangled, thereby reducing or avoiding the labor cost, production loss and harm to personnel health and operating environment caused by regular cleaning. The rotation direction of the return mixing blade is opposite to that of the main mixing blade, thereby enhancing the stirring intensity and improving the mixing effect. The horizontal stirring shaft can rotate forward or reversely, and the return mixing blade has an opposite rotation direction to the main mixing blade. Regardless of whether the horizontal stirring shaft rotates forward or reversely, the direction in which the return mixing blade pushes the material is opposite to that of the main mixing blade, further improving the mixing effect.

Description

Technical Field

[0001] The invention relates to a mixer in the field of chemical or environmental protection machinery, and in particular to a novel horizontal mixer stirring shaft, which is widely used in chemical or environmental protection industries where solid materials need to be uniformly mixed with liquid or semi-solid materials. Background Art

[0002] At present, most mixers used for homogenizing, stirring and mixing solid, semi-solid and liquid materials are horizontal mixers. However, since the main shaft of such horizontal mixers is mostly designed as a dendrite structure of "traditional mixer main shaft 4 + traditional mixer main shaft dendrite structure radial stirring paddle 5" (see attached Figure 2 ), the flexible strip materials are very easy to be entangled on the radial stirring paddles 5 of the traditional mixer main shaft branch-like structure arranged radially along the traditional mixer main shaft 4. Over time, the radial stirring paddles 5 of the traditional mixer main shaft branch-like structure will be full of materials until the mixer cylinder is blocked, affecting the mixing effect or even causing the mixer to lose its mixing function. It is necessary to shut down the machine regularly and manually clean the materials hanging on the mixer stirring paddles, thereby affecting normal production and causing production losses.

[0003] However, the homogenization of materials is crucial to the reaction effect of mixed materials in chemical reactors and the incineration treatment effect of mixed waste in waste incinerators. Therefore, it is particularly important to stir, mix and homogenize the materials before entering the reactor or incinerator.

[0004] In view of the above-mentioned defects of the existing mixers, the inventors have focused on the key issues of stirring, mixing and homogenizing the materials before entering the reactor or incinerator, and finally created the present invention which is of real practical value. Summary of the invention

[0005] The purpose of the present invention is to overcome the defects of existing mixers and provide a new type of horizontal mixer stirring shaft with a new structure. The technical problem to be solved is to make the flexible strip material less likely to be entangled or even completely avoid entanglement, so that the stirring and mixing are more homogeneous and more suitable for practical use.

[0006] Another object of the present invention is to provide a novel stirring shaft for a horizontal mixer, the technical problem to be solved is to reduce or avoid the labor cost and production loss caused by regular shutdown for cleaning, thereby making it more practical and reducing production costs.

[0007] Another object of the present invention is to provide a new type of horizontal mixer stirring shaft with a new structure, and the technical problem to be solved is to enhance the stirring effect by back-mixing the materials, thereby making it more suitable for practical use and improving production efficiency.

[0008] Another object of the present invention is to provide a novel horizontal mixer agitator shaft, the technical problem to be solved is to reduce or avoid the contact between personnel and materials during manual cleaning of entanglements, thereby reducing or avoiding the harm of harmful materials to personnel health and the operating environment, being more suitable for practical use, and having industrial utilization value.

[0009] The idea of ​​the present invention is to solve the key problem of stirring, mixing and homogenizing the materials before entering the reactor or incinerator, and to focus on solving the problem that the flexible strip materials are very easy to be entangled on the stirring paddles arranged in the radial direction of the main shaft during the operation of the existing mixer, resulting in the stirring paddles being full of materials and even clogging the mixer cylinder. The stirring, mixing and homogenizing pretreatment of the present invention abandons the traditional stirring paddle type mixing main shaft, and replaces it with a multi-stage non-continuous spiral main mixing blade, supplemented by a reverse return mixing blade, so that the flexible strip materials are not easy to be entangled or even completely avoid entanglement, reducing or avoiding the labor cost and production loss caused by regular shutdown and cleaning.

[0010] The purpose of the present invention and the technical problems solved are achieved by adopting the following technical solutions. According to the present invention, a new type of horizontal mixer stirring shaft for mixing solid, semi-solid and liquid materials includes a horizontal stirring shaft and multiple groups of spiral mixing blades fixed on the horizontal stirring shaft, wherein the multiple groups of spiral mixing blades are composed of multiple groups of main mixing blades and multiple groups of return mixing blades, each group of main mixing blades is composed of multiple sections of main mixing blades, and each group of return mixing blades is composed of multiple sections of return mixing blades; the multiple groups of main mixing blades and the multiple groups of return mixing blades are arranged in multiple sections of non-continuous intervals, and multiple groups of spiral main mixing blades can be evenly arranged within a radial range of 360° on the horizontal stirring shaft.

[0011] The two adjacent main mixing blades of each group of main mixing blades arranged discontinuously along the axial direction of the horizontal stirring shaft are evenly arranged at an angle of 1-90 degrees along the cylindrical surface of the horizontal main shaft according to the number of main mixing blade groups set.

[0012] The two adjacent main mixing blades at the head and tail of each group of main mixing blades can be arranged axially without spacing along the axial direction of the horizontal stirring shaft, or can be arranged axially discontinuously at a certain distance according to the fluidity of the material.

[0013] A back-mixing blade is arranged in the middle of the place where the two adjacent sections of each two groups of main mixing blades radially adjacent to each other along the horizontal stirring shaft are staggered at a relatively large angle.

[0014] The purpose of the present invention and the solution to its technical problems can be further achieved by adopting the following technical measures.

[0015] The aforementioned novel horizontal mixer stirring shaft, wherein the mixing blades are not close to the head or tail of the end of the horizontal stirring shaft, or at least the edge of the head is arc-shaped, and does not form an acute angle or a right angle with the axis of the horizontal stirring shaft.

[0016] The aforementioned novel horizontal mixer agitator shaft, wherein the rotation direction of the back-mixing blade is opposite to the rotation direction of the main mixing blade.

[0017] The aforementioned novel mixer agitator shaft, wherein the length of the back-mixing blade is shorter than the main mixing blade.

[0018] The aforementioned novel mixer stirring shaft, wherein the horizontal stirring shaft can rotate forward or reverse.

[0019] The aforementioned novel horizontal mixer stirring shaft has a rotation speed sensor installed on the horizontal stirring shaft to detect the solid-liquid ratio and the blocking resistance.

[0020] For the aforementioned novel horizontal mixer agitator shaft, when the staggered angles of the two adjacent sections of each two radially adjacent groups of main mixing blades along the horizontal agitator shaft are the same, a return mixing blade may or may not be provided between the discontinuities of the two adjacent sections of each two adjacent groups of main mixing blades.

[0021] Compared with the prior art, the present invention has obvious advantages and beneficial effects. It has at least the following advantages:

[0022] 1. The horizontal stirring shaft of the present invention can be rotated forward or reversed regularly or randomly according to process requirements, thereby enhancing the stirring intensity, improving the mixing effect and eliminating obstruction.

[0023] 2. The rotation direction of the back-mixing blade of the present invention is opposite to that of the main mixing blade. Regardless of whether the stirring shaft rotates forward or reverse, the direction in which the back-mixing blade pushes the material is opposite to the direction in which the main mixing blade pushes the material, thereby further improving the mixing effect.

[0024] 3. The present invention adopts multiple sections of non-continuous spiral main mixing blades, supplemented by multiple sections of reverse return mixing blades, so that flexible strip materials are not easy to be entangled or even completely avoid entanglement, reducing or avoiding labor costs and production losses caused by regular shutdown and cleaning.

[0025] 4. When the main mixing blades and return mixing blades of the present invention are processed and formed, the head and tail of the mixing blades that are not close to the two ends of the horizontal stirring shaft or at least the edge shape of the head has a certain arc, and does not form an acute angle or a right angle with the axis of the horizontal stirring shaft, effectively preventing long strips of material from hanging on the head and tail of the mixing blades to form a blockage.

[0026] 5. The present invention installs a speed sensor on the horizontal stirring shaft, which can accurately adjust the solid-liquid ratio of the material in the mixer according to the speed of the horizontal stirring shaft and automatically diagnose the jam. When jam occurs, it can be resolved by adjusting the solid-liquid ratio or automatically reversing the horizontal stirring shaft, thereby achieving a homogenization effect of fully mixing the materials, effectively preventing jams and improving work efficiency.

[0027] 6. The present invention reduces or avoids the entanglement of flexible strip materials on the mixer's stirring shaft, thereby reducing or avoiding the need for regular manual cleaning, reducing or avoiding damage to personnel health caused by direct contact between operators and harmful materials, and reducing or avoiding pollution to the operating environment caused by cleaning materials.

[0028] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented according to the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the following preferred embodiments are specifically cited and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the horizontal stirring shaft of the mixer of the present invention.

[0030] Figure 2 This is an axonometric view of a traditional mixer main shaft (“horizontal main shaft + radial stirring paddle”).

[0031] Figure 3 It is a front view of the horizontal stirring shaft of the mixer of the present invention.

[0032] Figure 4 It is an axonometric view of the horizontal stirring shaft of the mixer according to the first preferred embodiment of the present invention.

[0033] Figure 5 The present invention Figure 4 A partial enlarged view of part A of the horizontal stirring axis of the mixer.

[0034] Figure 6 It is an expanded view of the main shaft cylinder of the horizontal stirring shaft of the second preferred embodiment of the present invention.

[0035] Figure 7 This is a cylindrical expansion diagram of the horizontal stirring shaft without back-mixing blades in the second preferred embodiment of the present invention.

[0036] exist Figure 7 The two adjacent sections at the head and tail of each group of main mixing blades are staggered by 60 degrees along the radial direction of the horizontal main axis cylindrical surface. When the staggered angles of the two adjacent sections of each two adjacent groups of main mixing blades are the same, no return mixing blades are provided.

[0037] Figure 8It is an expanded view of the horizontal stirring shaft cylinder in the case where the back-mixing blades are provided in the second preferred embodiment of the present invention.

[0038] exist Figure 8 The two adjacent sections at the head and tail of each group of main mixing blades are staggered at an angle of 60° radially along the horizontal main axis cylindrical surface, and return mixing blades are provided when the staggered angles of the two adjacent sections of each two adjacent groups of main mixing blades are the same.

[0039] Fig. 9 It is an expanded view of the main shaft cylinder of the horizontal stirring shaft of the third preferred embodiment of the present invention.

[0040] in:

[0041] 1: Horizontal stirring shaft

[0042] 2: Main mixing blade

[0043] 2-1: The first set of main mixing blades

[0044] 2-1a: Section a of the first set of main mixing blades (the tail is arc-shaped)

[0045] 2-1b: Section b of the first set of main mixing blades (with arc-shaped head)

[0046] 2-1c: Section c of the first set of main mixing blades (with an arc-shaped head)

[0047] 2-2: The second set of main mixing blades

[0048] 2-2a: Section a of the second set of main mixing blades (the tail is arc-shaped)

[0049] 2-2b: Section b of the second set of main mixing blades (with an arc-shaped head)

[0050] 2-2c: Section c of the second set of main mixing blades (with an arc-shaped head)

[0051] 2-3: The third set of main mixing blades

[0052] 2-3a: Section a of the third set of main mixing blades (the tail is arc-shaped)

[0053] 2-3b: Section b of the third set of main mixing blades (with an arc-shaped head)

[0054] 2-3c: Section c of the third set of main mixing blades (with an arc-shaped head)

[0055] 2-4: The fourth group of main mixing blades

[0056] 2-4a: Section a of the fourth set of main mixing blades (the tail is arc-shaped)

[0057] 2-4b: Section b of the fourth group of main mixing blades (with an arc-shaped head)

[0058] 2-4c: Section c of the fourth group of main mixing blades (with an arc-shaped head)

[0059] 3: Back-mixing blades

[0060] 3-1: The first group of return mixing blades

[0061] 3-1a: Section a of the first group of return mixing blades (the head is arc-shaped)

[0062] 3-1b: Section b of the first group of return mixing blades (the head is arc-shaped)

[0063] 3-2: The second set of return mixing blades

[0064] 3-2a: Section a of the second set of return mixing blades (the head is arc-shaped)

[0065] 3-2b: Section b of the second set of return-mixing blades (the head is arc-shaped)

[0066] 3-3: The third group of return mixing blades

[0067] 3-3a: Section a of the third group of return mixing blades (the head is arc-shaped)

[0068] 3-3b: Section b of the third group of return mixing blades (the head is arc-shaped)

[0069] 3-4: The fourth group of return mixing blades

[0070] 3-4a: Section a of the fourth group of return mixing blades (the head is arc-shaped)

[0071] 3-4b: Section b of the fourth group of return mixing blades (the head is arc-shaped)

[0072] 4: Traditional mixer spindle

[0073] 5: Traditional mixer main shaft dendritic structure radial stirring paddle

[0074] B: Material flow direction DETAILED DESCRIPTION

[0075] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation method, structure, characteristics and effects of a new type of horizontal mixer stirring shaft proposed by the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0076] The purpose of the present invention is to provide a new type of horizontal mixer stirring shaft for mixing solid, semi-solid and liquid materials in view of the defects of the prior art, including a horizontal stirring shaft 1 and multiple groups of spiral mixing blades fixed on the horizontal stirring shaft 1, wherein the multiple groups of spiral mixing blades are composed of multiple groups of main mixing blades 2 and multiple groups of return mixing blades 2, each group of main mixing blades is composed of multiple sections of main mixing blades, and each group of return mixing blades is composed of multiple sections of return mixing blades. The multiple groups of main mixing blades 2 and the multiple groups of return mixing blades 3 are multi-stage non-continuous settings.

[0077] The horizontal stirring shaft 1 can rotate forward or reverse according to the process control requirements. The materials are mixed by stirring and back-mixing the main mixing blades 2 and the back-mixing blades 3 arranged on the horizontal stirring shaft 1. When the horizontal stirring shaft 1 rotates forward, the main mixing blades 2 push the materials from the feed port of the mixer barrel toward the discharge port while stirring the materials; when the horizontal stirring shaft 1 reverses, the main mixing blades 2 push the materials from the discharge port of the mixer barrel toward the feed port while stirring the materials; when the horizontal stirring shaft 1 rotates forward or reverse, the direction in which the back-mixing blades 3 push the materials is opposite to the direction in which the main mixing blades 2 push the materials, so that the materials are fully stirred and the mixing effect is improved.

[0078] like Figure 1 As shown: a horizontal stirring shaft 1 supporting end plate is provided at both ends of the mixer, and the supporting end plate supports the horizontal stirring shaft 1 through a bearing, and multiple groups of non-continuous spiral main mixing blades 2 and multiple groups of return mixing blades 3 are welded or fixed on the horizontal stirring shaft 1 by other connection methods. Among them, each group of main mixing blades is composed of multiple sections of main mixing blades, and each group of return mixing blades is composed of multiple sections of return mixing blades. Both blades are made of metal and are formed by spinning or casting. After forming, multiple groups of spiral main mixing blades 2 are evenly arranged within the radial range of 360° of the horizontal stirring shaft 1. According to the length of each section of the horizontal stirring shaft 1 and the main mixing blades 2, each group of main mixing blades can be divided into multiple sections. The two adjacent sections of each group of main mixing blades 2 arranged discontinuously along the axial direction of the horizontal stirring shaft 1 are staggered at an angle of 1-90° along the cylindrical surface of the horizontal stirring shaft 1 according to the number of main mixing blade groups set. The main mixing blades of the two adjacent sections of each group of main mixing blades 2 can have no distance along the axial direction of the horizontal stirring shaft 1 (axial no spacing setting) or be separated by a certain distance (axial discontinuous setting) according to the fluidity of the material; then, a back-mixing blade 3 is arranged in the middle of the place where the angle between the adjacent two sections of each two groups of main mixing blades 2 adjacent to each other in the radial direction of the horizontal stirring shaft 1 is relatively large. The rotation direction of the back-mixing blade 3 is opposite to that of the main mixing blade 2; the main mixing blade 2 and the back-mixing blade 3 can be fixed on the horizontal stirring shaft 1 of the mixer by welding or any other mechanical fixing method.

[0079] In actual application of the present invention, the length of each section of the back-mixing blade 3 is shorter than the length of each section of the main mixing blade 2 radially adjacent thereto, otherwise the back-mixing blade may hinder the flow of materials, thus affecting the mixing effect.

[0080] In actual application, a bidirectional driving device can be connected to the horizontal stirring shaft 1. Driven by the bidirectional driving device, the horizontal stirring shaft 1 can rotate forward or reverse regularly or randomly according to process control, thereby eliminating obstruction, enhancing stirring intensity and improving mixing effect.

[0081] Since the rotation direction of the back-mixing blade 3 is opposite to that of the main mixing blade 2, no matter whether the horizontal stirring shaft 1 rotates forward or reversely, the direction in which the back-mixing blade 3 pushes the material is opposite to that of the main mixing blade 2, thereby further improving the mixing effect.

[0082] In addition, when the mixing blades (including: main mixing blades 2 and return mixing blades 3) are processed and formed, the head and tail that are not close to the two ends of the horizontal stirring shaft 1 or at least the edge shape of the head has a certain arc, and does not form an acute angle or a right angle with the axis of the horizontal stirring shaft 1, thereby preventing long strips of material from hanging on the head and tail of the blades to form entanglement and blockage.

[0083] In actual application, the present invention can also be equipped with a speed sensor. When it is detected that the speed of the horizontal main shaft is low, it indicates: 1) the solid component in the material in the mixer may account for a high proportion. At this time, an appropriate amount of waste liquid can be added through the spare port of the mixer to adjust the solid-liquid ratio of the material in the mixer; 2) if the speed of the horizontal stirring shaft 1 is still low after the waste liquid is added, it means that the current direction of the horizontal stirring shaft 1 is blocked. At this time, the bidirectional drive device can automatically reverse to eliminate the obstruction.

[0084] The rotation speed sensor is a gear type rotation speed sensor or any other rotation speed sensor using existing mature technology.

[0085] See also Figure 1 , Figure 3 , Figure 4 , Figure 5 The first preferred embodiment of the present invention is a novel horizontal mixer stirring shaft, which is mainly composed of a horizontal stirring shaft 1 and a spiral mixing blade fixed on the horizontal stirring shaft 1. The mixing blade is composed of two groups of main mixing blades and two groups of return mixing blades. Each group of main mixing blades is composed of two sections of main mixing blades, and each group of return mixing blades is composed of one section of return mixing blades.

[0086] See attached Figure 4In this embodiment, two groups of main mixing blades 2 are arranged on the horizontal stirring shaft 1, namely the first group of main mixing blades 2-1 and the second group of main mixing blades 2-2. Among them, the first group of main mixing blades 2-1 includes two sections of main mixing blades, namely the a section 2-1a of the first group of main mixing blades and the b section 2-1b of the first group of main mixing blades; the second group of main mixing blades 2-2 includes two sections of main mixing blades, namely the a section 2-2a of the second group of main mixing blades and the b section 2-2b of the second group of main mixing blades. The tail of the a section 2-1a of the first group of main mixing blades is arc-shaped, the head of the b section 2-1b of the first group of main mixing blades is arc-shaped, the tail of the a section 2-2a of the second group of main mixing blades is arc-shaped, and the head of the b section 2-2b of the second group of main mixing blades is arc-shaped. The back-mixing blades 3 of this embodiment include two groups of back-mixing blades, namely the first group of back-mixing blades 3-1 and the second group of back-mixing blades 3-2, wherein the heads of the first group of back-mixing blades 3-1 are arc-shaped, and the heads of the second group of back-mixing blades 3-2 are arc-shaped.

[0087] See attached Figure 4 and Figure 5 Each group of main mixing blades is arranged in two discontinuous sections. The first group of main mixing blades 2-1 and the second group of main mixing blades 2-2 arranged axially along the horizontal stirring shaft 1 are symmetrically arranged at an angle of 180° along the radial direction of the main shaft. The two adjacent sections of each group of main mixing blades arranged discontinuously along the axial direction of the horizontal stirring shaft 1, i.e., the tail of the a section 2-1a of the first group of main mixing blades and the head of the b section 2-1b of the first group of main mixing blades, are staggered at an angle of 60° along the radial direction of the cylindrical surface of the horizontal stirring shaft 1. The tail of section a 2-2a of the blade and the head of section b 2-2b of the second group of main mixing blades are radially staggered at an angle of 60° along the cylindrical surface of the horizontal stirring shaft 1, and a return-mixing blade 3 is arranged in the middle of the interruption of every two groups of main mixing blades radially adjacent to each other along the horizontal stirring shaft 1, i.e., the first group of main mixing blades 2-1 and the second group of main mixing blades 2-2, which are staggered at an angle of 120°, that is, adjacent main mixing blades and return-mixing blades are staggered at an angle of 60°, and the rotation direction of the return-mixing blade 3 is opposite to that of the main mixing blade 2.

[0088] A second preferred embodiment of the present invention is as shown in the attached Figure 6As shown in (cylindrical expansion diagram of the horizontal stirring shaft 1), for ease of understanding, the horizontal stirring shaft 1 is expanded along a main line on its main axis cylindrical surface that passes through the center point of a certain section of a main mixing blade (for example, section a 2-3a of the third group of main mixing blades) (the third and fourth preferred embodiments described below are also expanded in the same way). In this embodiment, three groups of main mixing blades are arranged, namely the first group of main mixing blades 2-1, the second group of main mixing blades 2-2, and the third group of main mixing blades 2-3, and each group of main mixing blades includes 3 sections. Among them, the first group of main mixing blades 2-1 includes three sections of main mixing blades, namely, section a 2-1a of the first group of main mixing blades, section b 2-1b of the first group of main mixing blades and section c 2-1c of the first group of main mixing blades; the second group of main mixing blades 2-2 also includes three sections of main mixing blades, namely, section a 2-2a of the second group of main mixing blades, section b 2-2b of the second group of main mixing blades and section c 2-2c of the second group of main mixing blades; the third group of main mixing blades 2-3 also includes three sections of main mixing blades, namely, section a 2-3a of the third group of main mixing blades, section b 2-3b of the third group of main mixing blades and section c 2-3c of the third group of main mixing blades. Among them, the tail of section a 2-1a of the first group of main mixing blades is arc-shaped, the head of section b 2-1b of the first group of main mixing blades is arc-shaped, and the head of section c 2-1c of the first group of main mixing blades is arc-shaped; the tail of section a 2-2a of the second group of main mixing blades is arc-shaped; the head of section b 2-2b of the second group of main mixing blades is arc-shaped, and the head of section c 2-2c of the second group of main mixing blades is arc-shaped; the tail of section a 2-3a of the third group of main mixing blades is arc-shaped, the head of section b 2-3b of the third group of main mixing blades is arc-shaped, and the head of section c 2-3c of the third group of main mixing blades is arc-shaped.

[0089] The back-mixing blades 3 provided in the second preferred embodiment include three groups of back-mixing blades, namely the first group of back-mixing blades 3-1, the second group of back-mixing blades 3-2, and the third group of back-mixing blades 3-3. Each group of back-mixing blades includes two sections, namely the a section 3-1a of the first group of back-mixing blades and the b section 3-1b of the first group of back-mixing blades; the a section 3-2a of the second group of back-mixing blades and the b section 3-2b of the second group of back-mixing blades; the a section 3-3a of the third group of back-mixing blades and the b section 3-3b of the third group of back-mixing blades. Among them, the head of section a 3-1a of the first group of return-mixing blades is arc-shaped, and the head of section b 3-1b of the first group of return-mixing blades is arc-shaped; the head of section a 3-2a of the second group of return-mixing blades is arc-shaped, and the head of section b 3-2b of the second group of return-mixing blades is arc-shaped; the head of section a 3-3a of the third group of return-mixing blades is arc-shaped, and the head of section b 3-3b of the third group of return-mixing blades is arc-shaped.

[0090] Each group of main mixing blades is arranged in three non-continuous sections. The first group of main mixing blades 2-1, the second group of main mixing blades 2-2 and the third group of main mixing blades 2-3 arranged axially along the horizontal stirring shaft 1 are evenly distributed at an angle of 120° within a radial range of 360° along the horizontal stirring shaft 1. The head and tail adjacent sections of each group of main mixing blades 2 arranged axially discontinuously along the horizontal stirring shaft 1 are staggered by 40° along the radial direction of the cylindrical surface of the horizontal stirring shaft 1, that is, the tail of the first group of main mixing blades a section 2-1a and the head of the first group of main mixing blades b section 2-1b are staggered by 40° along the radial direction of the cylindrical surface of the horizontal stirring shaft 1, and the tail of the first group of main mixing blades b section 2-1b and the head of the first group of main mixing blades c section 2-1c are staggered by 40° along the radial direction of the cylindrical surface of the horizontal stirring shaft 1.

[0091] The tail of the second group of main mixing blades a section 2-2a and the head of the second group of main mixing blades b section 2-2b are staggered at an angle of 40° along the radial direction of the cylindrical surface of the horizontal stirring shaft 1, and the tail of the second group of main mixing blades b section 2-2b and the head of the second group of main mixing blades c section 2-2c are staggered at an angle of 40° along the radial direction of the cylindrical surface of the horizontal stirring shaft 1.

[0092] The tail of the third group of main mixing blades a section 2-3a and the head of the third group of main mixing blades b section 2-3b are staggered at 40° along the radial direction of the cylindrical surface of the horizontal stirring shaft 1, and the tail of the third group of main mixing blades b section 2-3b and the head of the third group of main mixing blades c section 2-3c are staggered at 40° along the radial direction of the cylindrical surface of the horizontal stirring shaft 1.

[0093] A return-mixing blade 3 is arranged in the middle of the discontinuity between two groups of main mixing blades 2 that are adjacent in the radial direction of the horizontal stirring shaft 1 and are staggered by 80° (the adjacent main mixing blades and return-mixing blades are staggered by 40°), and each group of return-mixing blades is arranged in two discontinuous sections. Figure 6 As shown, the first group of return-mixing blades 3-1 is arranged in the middle of the discontinuity between the adjacent first group of main mixing blades 2-1 and the second group of main mixing blades 2-2, which is staggered by an angle of 80° (the adjacent first group of main mixing blades 2-1 and the first group of return-mixing blades 3-1 are both staggered by an angle of 40°); the second group of return-mixing blades 3-2 is arranged in the middle of the discontinuity between the adjacent second group of main mixing blades 2-2 and the third group of main mixing blades 2-3, which is staggered by an angle of 80° (the adjacent second group of main mixing blades 2-2 and the second group of return-mixing blades 3-2 are both staggered by an angle of 40°); the third group of return-mixing blades 3-3 is arranged in the middle of the discontinuity between the adjacent third group of main mixing blades 2-3 and the first group of main mixing blades 2-1, which is staggered by an angle of 80° (the adjacent third group of main mixing blades 2-3 and the third group of return-mixing blades 3-3 are both staggered by an angle of 40°).

[0094] See also Figure 7As shown, it is the second preferred embodiment of the present invention, in which the head and tail adjacent sections of each group of main mixing blades 2 are staggered by 60° along the radial direction of the cylindrical surface of the horizontal main axis 1, and when the staggered angles of the adjacent sections of each two adjacent groups of main mixing blades are the same, no return mixing blades are provided.

[0095] See also Figure 8 As shown, in the second preferred embodiment of the present invention, the two adjacent sections of each group of main mixing blades 2 are staggered by 60° along the radial direction of the cylindrical surface of the horizontal main axis 1, and the return mixing blades 3 are provided when the staggered angles of the two adjacent sections of each two adjacent groups of main mixing blades 2 are the same.

[0096] A third preferred embodiment of the present invention is as shown in the attached Fig. 9 As shown in (expanded view of the main shaft cylinder of the horizontal stirring shaft 1), in this embodiment, 4 groups of main mixing blades are arranged, namely the first group of main mixing blades 2-1, the second group of main mixing blades 2-2, the third group of main mixing blades 2-3, and the fourth group of main mixing blades 2-4; each group of main mixing blades includes 3 sections. Among them, the first group of main mixing blades includes three sections of main mixing blades, namely, section a 2-1a of the first group of main mixing blades, section b 2-1b of the first group of main mixing blades, and section c 2-1c of the first group of main mixing blades; the second group of main mixing blades also includes three sections of main mixing blades, namely, section a 2-2a of the second group of main mixing blades, section b 2-2b of the second group of main mixing blades, and section c 2-2c of the second group of main mixing blades; the third group of main mixing blades also includes three sections of main mixing blades, namely, section a 2-3a of the third group of main mixing blades, section b 2-3b of the third group of main mixing blades, and section c 2-3c of the third group of main mixing blades; the fourth group of main mixing blades also includes three sections of main mixing blades, namely, section a 2-4a of the fourth group of main mixing blades, section b 2-4b of the fourth group of main mixing blades, and section c 2-4c of the fourth group of main mixing blades. Among them, the tail of section a 2-1a of the first group of main mixing blades is arc-shaped, the head of section b 2-1b of the first group of main mixing blades is arc-shaped, and the head of section c 2-1c of the first group of main mixing blades is arc-shaped; the tail of section a 2-2a of the second group of main mixing blades is arc-shaped, the head of section b 2-2b of the second group of main mixing blades is arc-shaped, and the head of section c 2-2c of the second group of main mixing blades is arc-shaped; the tail of section a 2-3a of the third group of main mixing blades is arc-shaped, the head of section b 2-3b of the third group of main mixing blades is arc-shaped, and the head of section c 2-3c of the third group of main mixing blades is arc-shaped; the tail of section a 2-4a of the fourth group of main mixing blades is arc-shaped, the head of section b 2-4b of the fourth group of main mixing blades is arc-shaped, and the head of section c 2-4c of the fourth group of main mixing blades is arc-shaped.

[0097] The back-mixing blades 3 provided in the third preferred embodiment include 4 groups of back-mixing blades, namely the first group of back-mixing blades 3-1, the second group of back-mixing blades 3-2, the third group of back-mixing blades 3-3, and the fourth group of back-mixing blades 3-4; each group of back-mixing blades includes 2 sections, namely the a section 3-1a of the first group of back-mixing blades and the b section 3-1b of the first group of back-mixing blades; the a section 3-2a of the second group of back-mixing blades and the b section 3-2b of the second group of back-mixing blades; the a section 3-3a of the third group of back-mixing blades and the b section 3-3b of the third group of back-mixing blades; the a section 3-4a of the fourth group of back-mixing blades , the b section 3-4b of the 4th group of return-mixing blades; wherein, the head of the a section 3-1a of the 1st group of return-mixing blades is arc-shaped, and the head of the b section 3-1b of the 1st group of return-mixing blades is arc-shaped; the head of the a section 3-2a of the 2nd group of return-mixing blades is arc-shaped, and the head of the b section 3-2b of the 2nd group of return-mixing blades is arc-shaped; the head of the a section 3-3a of the 3rd group of return-mixing blades is arc-shaped), and the head of the b section 3-3b of the 3rd group of return-mixing blades is arc-shaped; the head of the a section 3-4a of the 4th group of return-mixing blades is arc-shaped, and the head of the b section 3-4b of the 4th group of return-mixing blades is arc-shaped.

[0098] Each group of main mixing blades is arranged non-continuously in three sections. The main mixing blades 2 arranged axially along the horizontal stirring shaft 1 are evenly distributed at an angle of 90° within a radial range of 360° along the horizontal stirring shaft 1. The head and tail adjacent sections of each group of main mixing blades 2 arranged axially discontinuously along the horizontal stirring shaft 1 are staggered by 30° along the radial direction of the cylindrical surface of the horizontal stirring shaft 1; that is, the tail of section a 2-1a of the first group of main mixing blades and the head of section b 2-1b of the first group of main mixing blades are staggered by 30° along the radial direction of the cylindrical surface of the horizontal stirring shaft 1, and the tail of section b 2-1b of the first group of main mixing blades and the head of section c 2-1c of the first group of main mixing blades are staggered by 30° along the radial direction of the cylindrical surface of the horizontal stirring shaft 1.

[0099] The tail of section a 2-2a of the second group of main mixing blades and the head of section b 2-2b of the second group of main mixing blades are staggered at an angle of 30° along the radial direction of the cylindrical surface of the horizontal stirring shaft 1, and the tail of section b 2-2b of the second group of main mixing blades and the head of section c 2-2c of the second group of main mixing blades are staggered at an angle of 30° along the radial direction of the cylindrical surface of the horizontal stirring shaft 1.

[0100] The tail of section a 2-3a of the third group of main mixing blades and the head of section b 2-3b of the third group of main mixing blades are staggered at an angle of 30° along the radial direction of the cylindrical surface of the horizontal stirring shaft 1, and the tail of section b 2-3b of the third group of main mixing blades and the head of section c 2-3c of the third group of main mixing blades are staggered at an angle of 30° along the radial direction of the cylindrical surface of the horizontal stirring shaft 1.

[0101] The tail of section a 2-4a of the 4th group of main mixing blades and the head of section b 2-4b of the 4th group of main mixing blades are staggered at an angle of 30° along the radial direction of the cylindrical surface of the horizontal stirring shaft 1, and the tail of section b 2-4b of the 4th group of main mixing blades and the head of section c 2-4c of the 4th group of main mixing blades are staggered at an angle of 30° along the radial direction of the cylindrical surface of the horizontal stirring shaft 1.

[0102] A return-mixing blade 3 is arranged in the middle of the discontinuity of each two groups of main mixing blades 2 radially adjacent to each other along the horizontal stirring shaft 1, staggered by 60° (i.e., the adjacent main mixing blades and return-mixing blades are staggered by 30°), and each group of return-mixing blades is arranged in two discontinuous sections. Fig. 9 As shown, the first group of return-mixing blades 3-1 are arranged in the middle of the discontinuities between the adjacent first group of main mixing blades 2-1 and the second group of main mixing blades 2-2 at an angle of 60° (the adjacent first group of main mixing blades 2-1 and the first group of return-mixing blades 3-1 are both staggered by 30°); the second group of return-mixing blades 3-2 are arranged in the middle of the discontinuities between the adjacent second group of main mixing blades 2-2 and the third group of main mixing blades 2-3 at an angle of 60° (the adjacent second group of main mixing blades 2-2 and the second group of return-mixing blades 3-2 are both staggered by 30° ); the third group of return-mixing blades 3-3 are arranged in the middle of the discontinuity of the adjacent third group of main mixing blades 2-3 and the fourth group of main mixing blades 2-4, which are staggered by an angle of 60° (the adjacent third group of main mixing blades 2-3 and the third group of return-mixing blades 3-3 are staggered by an angle of 30°); the fourth group of return-mixing blades 3-4 are arranged in the middle of the discontinuity of the adjacent fourth group of main mixing blades 2-4 and the first group of main mixing blades 2-1, which are staggered by an angle of 60° (the adjacent fourth group of main mixing blades 2-4 and the fourth group of return-mixing blades 3-4 are staggered by an angle of 30°).

[0103] In the first preferred embodiment of the present invention, the two adjacent main mixing blades at the head and tail of each group of main mixing blades 2 are arranged without spacing along the axial direction of the horizontal stirring shaft 1; in the second and third preferred embodiments, the two adjacent main mixing blades at the head and tail of each group of main mixing blades 2 are arranged discontinuously at a certain distance along the axial direction of the horizontal stirring shaft 1.

[0104] In practical applications, if the number of main mixing blade groups is more than 2 and the number of sections of each main mixing blade group is also more than 2, if the angle of offset between the adjacent sections of the two groups of main mixing blades is the same at the discontinuity of each two groups of main mixing blades 2 radially adjacent to each other along the horizontal stirring shaft 1, then the back-mixing blades may or may not be set between the adjacent sections of each two groups of main mixing blades 2 radially adjacent to each other along the horizontal stirring shaft 1. As in the second preferred embodiment of the present invention, if the two adjacent sections of the head and tail of each two groups of main mixing blades 2 radially adjacent to each other along the horizontal stirring shaft 1 are offset by 60° along the radial direction of the cylindrical surface of the horizontal main shaft 1, then the first group of back-mixing blades 3-1, the second group of back-mixing blades 3-2, and the first group of back-mixing blades 3-3 (as shown in the attached figure) may be set. Figure 7 Alternatively, on the main axis cylinder development diagram of the horizontal stirring shaft 1, the fourth group of return-mixing blades, the fifth group of return-mixing blades, and the sixth group of return-mixing blades are sequentially arranged at the midpoint of the head-to-tail connection line of each adjacent two segments of each group of main mixing blades 2, as shown in the attached figure. Figure 8 The dotted lines show section a 3-4a of the 4th group of return-mixing blades / section b 3-4b of the 4th group of return-mixing blades, section a 3-5a of the 5th group of return-mixing blades / section b 3-5b of the 5th group of return-mixing blades, and section a 3-6a of the 6th group of return-mixing blades / section b 3-6b of the 6th group of return-mixing blades.

[0105] The present invention utilizes the main mixing blade 2 to push the material, the material to flow in the discontinuity of the main mixing blade 2, and the back-mixing blade 3 to push the material in the reverse direction to achieve the mixing and back-mixing of the material. Under the push of the main mixing blade 2, the material flows from the mixer feed port along the horizontal stirring shaft 1 of the mixer axially to the mixer discharge port, and at the same time flows in the radial direction along the horizontal stirring shaft 1 of the mixer at the discontinuity of the main mixing blade 2. At the same time, the back-mixing blade 3 pushes the material in the reverse direction along the horizontal stirring shaft 1 of the mixer to improve the mixing effect. The horizontal stirring shaft 1 of the mixer can also be reversed according to the process control requirements, thereby further enhancing the mixing effect. The horizontal stirring shaft 1 of the mixer can also be equipped with a speed sensor for judging the solid-liquid ratio of the material. By timely adjusting the ratio of the solid material, semi-solid material and liquid material entering the mixer, a mixed slurry material with uniform texture, balanced calorific value and ideal fluidity can be finally obtained.

[0106] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with this profession can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A new type of horizontal mixer agitator shaft for mixing solid, semi-solid and liquid materials, characterized in that: It comprises a horizontal stirring shaft and a plurality of groups of spiral mixing blades fixed on the horizontal stirring shaft, wherein the plurality of groups of spiral mixing blades are composed of a plurality of groups of main mixing blades and a plurality of groups of return mixing blades, each group of main mixing blades is composed of a plurality of sections of main mixing blades, and each group of return mixing blades is composed of a plurality of sections of return mixing blades; the plurality of groups of main mixing blades and the plurality of groups of return mixing blades are arranged in a plurality of sections of non-continuous intervals, and the plurality of groups of spiral main mixing blades are evenly distributed within a radial range of 360° on the horizontal stirring shaft; According to the number of main mixing blade groups set, the two adjacent main mixing blades of each group of main mixing blades arranged discontinuously along the axial direction of the horizontal stirring shaft are evenly arranged at an angle of 1-90° along the cylindrical surface of the horizontal main shaft; The two main mixing blades adjacent to each other at the head and tail of each group of main mixing blades are arranged axially without spacing along the axial direction of the horizontal stirring shaft, or are arranged axially discontinuously at a certain distance according to the fluidity of the material; A back-mixing blade is provided in the middle of the two adjacent sections of each two sets of main mixing blades radially adjacent to each other along the horizontal stirring shaft where the staggered angle is relatively large; The rotation direction of the back-mixing blade is opposite to that of the main mixing blade; A rotation speed sensor is installed on the horizontal stirring shaft to detect the solid-liquid ratio and the blocking resistance.

2. The novel horizontal mixer agitator shaft according to claim 1 is characterized in that: The mixing blade is not close to the head or tail of the end of the horizontal stirring shaft, or at least the edge of the head is arc-shaped, and does not form an acute angle or a right angle with the axis of the horizontal stirring shaft.

3. The stirring shaft of the novel horizontal mixer according to claim 1 is characterized in that: The length of the back-mixing blade is shorter than that of the main mixing blade.

4. The novel horizontal mixer agitator shaft according to claim 1 is characterized in that: The horizontal stirring shaft can rotate forward or reverse.

Images