Air suction type homogenizing mixer and its use method

Abstract

The present invention discloses an air suction type homogenizing mixer and a method for using the same, and belongs to the technical field of powder mixing. The air suction type homogenizing mixer includes a frame, a mixing box is fixedly provided on the frame, the mixing box includes an upper suction air distribution chamber and a lower particle separation chamber, a particle separation device for preventing particles from entering the suction air distribution chamber is provided between the suction air distribution chamber and the particle separation chamber; the suction air distribution chamber is connected to a suction fan, and a discharge device is provided at the bottom of the particle separation chamber; a suction pipe is provided on the wall of the particle separation chamber, and the end of the suction pipe is open; two raw material feeding ports are provided on the suction pipe, and a raw material feeding device is provided at each raw material feeding port; at least two mixing guide blades are provided in the suction pipe between the raw material feeding port and the particle separation chamber. The present invention reduces the adhesion and agglomeration of zinc oxide, reduces the influence of uneven impurity content of zinc oxide, realizes continuous and efficient mixing, has little impact on revenue, and is conducive to ensuring the quality of the final product.

Description

Technical Field

[0001] The present invention relates to the technical field of powder mixing, and in particular to an air suction type homogenizing mixer and a use method thereof. Background Art

[0002] Indirect zinc oxidation involves continuously evaporating zinc liquid at high temperatures into zinc vapor. The vapor is then oxidized into zinc oxide particles, which are then collected in bags. These particles, with diameters ranging from 0.1 to 10 microns, are very fine. After collection, they are uniformly packed into reusable bags for transportation or secondary processing. These bags typically have a capacity of 300 to 500 kg. Zinc oxide is inherently viscous and easily forms lumps when squeezed. Therefore, post-production extrusion must be minimized or even avoided to ensure product quality.

[0003] Currently, zinc oxide production often uses zinc slag instead of zinc ingots to control raw material costs. Zinc slag contains significant amounts of impurities such as iron, lead, and hydrochloric acid-insoluble matter. Furthermore, the impurity content varies between zinc slag blocks, inevitably leading to trace amounts of these impurities entering the zinc oxide product during the production process. Consequently, zinc oxide produced at different stages may have varying impurity levels. For example, zinc oxide with lead content of 1000ppm and 300ppm may be produced in two different stages, respectively. Furthermore, due to factors such as the control of production process parameters, even zinc oxide produced from the same batch of zinc slag can exhibit some variations in impurity content in different areas of the bag after being filled into the bag. However, these variations within the same bag are relatively small.

[0004] In zinc oxide's downstream application industries, with the exception of a few sectors with extremely high impurity content requirements, most industries only have general requirements for impurity content, such as a lead content of less than 500ppm. Zinc oxide with a lead content of 1000ppm clearly does not meet this requirement, while providing zinc oxide with a lead content of 300ppm would result in quality issues. Therefore, in actual production, a method is adopted to increase product returns by mixing high-quality zinc oxide that exceeds the target requirement with low-quality zinc oxide that falls below the target requirement in a proportional manner to produce zinc oxide that basically meets the target requirement. To a certain extent, this type of zinc oxide product is a specially manufactured internal product with a significant timeliness characteristic in terms of product delivery period, and the number of specially manufactured products has shown a significant growth trend in recent years.

[0005] The inventor has been committed to the research and development of the above zinc oxide mixing technology and has used Figure 4The ribbon conveyor solution shown above performs the aforementioned mixing production. Specifically, low-quality zinc oxide and high-quality zinc oxide are fed into the machine chamber in a rough ratio. After being mixed uniformly by the ribbon conveyor, samples are taken to test whether they meet the target requirements. If not, the proportion of high-quality zinc oxide is increased, mixing is continued, and testing is performed. Once the target requirements are met, the zinc oxide is packaged. The advantage of this ribbon conveyor mixing technology is that it eliminates the influence of uneven impurities in the zinc oxide in the turnover bag. After thorough mixing, a sample representative of the quality of the final mixed zinc oxide can be extracted, resulting in accurate test data. However, the disadvantage is that it is an intermittent production process. The mixing of the two zinc oxide raw materials takes a considerable amount of time, and the waiting time after mixing also takes a considerable amount of time. If the test results do not meet the target requirements, the mixing process must be repeated, resulting in extremely low overall efficiency and often failing to meet the timeliness requirements for zinc oxide mixing production. Furthermore, the spiral blades in the ribbon conveyor squeeze the zinc oxide, causing significant zinc oxide clumping. These agglomerates can break off during mixing and mix into the final mixed zinc oxide, forming hard particles. These hard particles are then transported along with the zinc oxide into the packaging bag, affecting product quality.

[0006] To this end, it is necessary to comprehensively consider the adhesion characteristics of zinc oxide and the uneven content of zinc oxide impurities in turnover bags to provide an efficient and high-quality mixing method to solve the above problems. Summary of the Invention

[0007] The technical problem to be solved by the present invention is to provide a wind-suction homogenizing mixer and a method for using the same, which can reduce the adhesion and agglomeration of zinc oxide, reduce the influence of uneven impurity content of zinc oxide, achieve continuous and efficient mixing, have little impact on revenue, and help ensure the quality of the final product.

[0008] In order to solve the above technical problems, the technical solution of the present invention is as follows: an air suction homogenizer mixer comprises a frame, a mixing box is fixedly provided on the frame, the mixing box comprises an upper air suction and air distribution chamber and a lower particle separation chamber, a particle separation device is provided between the air suction and air distribution chamber and the particle separation chamber for preventing particles from entering the air suction and air distribution chamber; the air suction and air distribution chamber is connected to a suction fan, and a discharge device is provided at the bottom of the particle separation chamber;

[0009] A suction pipe is provided on the wall of the particle separation chamber, with the end of the suction pipe being open; two raw material feeding ports are provided on the suction pipe, each of which is provided with a raw material feeding device; at least two mixing guide vanes are provided in the suction pipe between the raw material feeding ports and the particle separation chamber;

[0010] The mixing guide blade includes a windward end and a leeward end, the windward end and the leeward end are arranged crosswise at 90°, and the mixing guide blade is arranged in a spiral shape twisted 90° from the windward end to the leeward end; the spiral directions of the mixing guide blades are the same.

[0011] As a preferred technical solution, the windward end of the downstream mixing guide blade and the leeward end of the upstream adjacent mixing guide blade are arranged to cross at 90 degrees.

[0012] As a preferred technical solution, a buffer space is provided between two adjacent mixing guide blades.

[0013] As a preferred technical solution, the suction pipe includes a mixing section fixedly connected to the wall of the particle separation chamber, and the end of the mixing section is integrally provided with a suction section that is bent obliquely downward; the suction section is provided with two raw material feeding ports, and the mixing guide blade is provided in the mixing section.

[0014] As a preferred technical solution, a material receiving box is provided on the frame at the lower end of the suction section, and an isolation cage covering the lower port of the suction section is fixedly provided at the top opening of the material receiving box.

[0015] As an optimal technical solution, the raw material feeding device includes a raw material hopper arranged on the frame and higher than the corresponding raw material feeding port, a star-shaped feeder is provided at the lower part of the raw material hopper, and a feeding guide pipe is provided between the discharge port of the star-shaped feeder and the corresponding raw material feeding port.

[0016] As an optimal technical solution, the particle separation device includes a partition fixedly arranged in the mixing box, and the partition is provided with a plurality of separation mounting holes arranged vertically, and each separation mounting hole is respectively installed with a filter bag assembly hanging downward into the particle separation chamber.

[0017] As an optimal technical solution, the discharging device includes a discharging trough arranged at the bottom of the particle separation chamber, a discharging auger is installed in the discharging trough, a discharging port is provided at the lower part of one end of the discharging trough, and a star-shaped discharging device is installed at the discharging port.

[0018] The method of using the air suction homogenizer includes the following steps:

[0019] Step 1: Select two portions of raw materials to be supplied to the two raw material feeding devices, wherein the two portions of raw materials are respectively a high-quality raw material having a quality higher than the target index and a low-quality raw material having a quality lower than the target index;

[0020] Step 2: Samples are taken from at least three different locations in the high-quality raw material and the low-quality raw material, and their index data are measured; the index data measured for each sample in the low-quality raw material are respectively recorded as a1, a2, ..., an, and the data with the lowest index is taken as the index data a of the low-quality raw material; the index data measured for each sample in the high-quality raw material are respectively recorded as b1, b2, ..., bn, and the data with the lowest index is taken as the index data b of the high-quality raw material; the target index of the desired mixed material is recorded as c;

[0021] Step 3: Based on the feeding speed of the low-quality raw materials at the corresponding raw material feeding device, the feeding speed of the high-quality raw materials at the corresponding raw material feeding device is fed at a speed of k (ca) / (bc); wherein k is the guarantee coefficient, and the value is 1.05 to 1.1.

[0022] By adopting the above technical solution, the present invention achieves the following beneficial effects:

[0023] (1) High-quality raw materials and low-quality raw materials are simultaneously fed into the suction pipe. The two raw materials form a dust-like mixture in the suction pipe under negative pressure suction, and are more evenly mixed after being forced into rotation by the mixing guide vanes. The mixed materials are retained in the particle separation chamber under the action of their own weight and the obstruction of the particle separation device and gradually deposited to the bottom of the particle separation chamber, and are discharged by the discharging device. The entire process is continuously operated, and the efficiency is 3 to 4 times higher than that of the screw conveyor.

[0024] (2) The raw materials are mixed in the form of dust, without external force extrusion, and are not easy to stick to the wall, so the adhesion and agglomeration of zinc oxide are significantly reduced, and there are no hard particles in the final product, which is conducive to ensuring the quality of the final product;

[0025] (3) The input ratio is determined based on the minimum indicators of high-quality raw materials and low-quality raw materials, so that the final product can meet the target product indicator requirements, reducing the impact of uneven zinc oxide impurity content, and further helping to ensure the quality of the final product; and compared with the mixing of screw conveyors, the final product indicators are not much different, and the consumption of high-quality raw materials is also not much different, which has little impact on profits. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The following drawings are intended only to illustrate and explain the present invention, and are not intended to limit the scope of the present invention.

[0027] Figure 1 is a front view structural schematic diagram of an embodiment of the present invention;

[0028] Figure 2 yes Figure 1 AA structure diagram in;

[0029] Figure 3 This is a schematic diagram of an enlarged three-dimensional structure of a mixing guide vane according to an embodiment of the present invention;

[0030] Figure 4 It is a structural diagram of an existing screw belt conveyor.

[0031] In the figure: 1-frame; 2-mixing box; 21-suction and air distribution chamber; 22-particle separation chamber; 3-suction fan; 4-particle separation device; 41-partition; 42-filter bag assembly; 5-backblowing device; 51-backblowing air distribution duct; 52-backblowing nozzle; 53-pulse valve; 54-air bag; 6-discharging device; 61-discharging chute; 62-discharging auger; 63-discharging port; 64-star-shaped discharging device; 7-suction pipe; 71-suction section; 72-raw material feeding port; 73-mixing section; 74-mixing guide vane; 75-windward end; 76-leeward end; 77-buffer interval; 8-raw material feeding device; 81-raw material hopper; 82-star-shaped feeder; 83-feeding guide pipe; 9-receiving box; 91-isolation cage. DETAILED DESCRIPTION

[0032] The present invention will be further described below with reference to the accompanying drawings and examples. In the following detailed description, certain exemplary embodiments of the present invention are described by way of illustration only. It is understood that those skilled in the art will recognize that the described embodiments may be modified in various ways without departing from the spirit and scope of the present invention. Therefore, the drawings and description are illustrative in nature and are not intended to limit the scope of the claims.

[0033] like Figure 2 As shown, the air suction type homogenizing mixer includes a frame 1. The structure of the frame 1 is easily obtained by those skilled in the art according to conventional technical means, so it is not illustrated in detail in the accompanying drawings. A mixing box 2 is fixed on the frame 1. The mixing box 2 includes an upper suction air distribution chamber 21 and a lower particle separation chamber 22. A particle separation device 4 for preventing particles from entering the suction air distribution chamber 21 is provided between the suction air distribution chamber 21 and the particle separation chamber 22; the suction air distribution chamber 21 is connected to a suction fan 3. The suction force of the suction fan 3 causes an air flow from the particle separation chamber 22 to the suction air distribution chamber 21 to be generated in the mixing box 2. The particles in the air flow are blocked by the particle separation device 4 and retained in the particle separation chamber 22.

[0034] The particle separation device 4 of this embodiment includes a partition 41 fixedly disposed within the mixing box 2. The partition 41 divides the mixing box 2 into the suction and distribution chamber 21 and the particle separation chamber 22. The partition 41 is provided with a plurality of separation mounting holes extending vertically therethrough, each of which is provided with a filter bag assembly 42 that extends downwardly into the particle separation chamber 22. The filter bag assembly 42 allows airflow to pass through while particles are blocked. The filter bag assembly 42 includes an inner support cage and an outer filter bag. The support cage supports the filter bag without obstructing airflow, preventing it from losing its filtering function due to suction and collapse.

[0035] Preferably, a back-blowing device 5 is provided in the air suction and distribution chamber 21 to periodically blow back into the filter bag assembly 42 to shake off particles adsorbed on the outer surface of the filter bag assembly 42, thereby ensuring long-term filtering performance of the filter bag assembly 42. Figure 1 and Figure 2 As shown, the back-blowing device 5 includes a back-blowing duct 51 disposed transversely within the suction chamber 21. The back-blowing duct 51 is provided with a back-blowing nozzle 52 directed toward the filter bag assembly 42. The back-blowing duct 51 extends beyond the wall of the suction chamber 21 and is connected to a pulse valve 53, which is in turn connected to an air bag 54. The pulse valve 53 is periodically opened to allow high-pressure gas within the air bag 54 to enter the filter bag assembly 42 through the back-blowing duct 51 and the back-blowing nozzle 52. In actual deployment, several filter bag assemblies 42 may be grouped together, each group sharing a set of back-blowing devices 5. Each back-blowing device 5 is activated at different times to minimize the impact of back-blowing on the overall suction wind force within the mixing box 2.

[0036] like Figure 1 and Figure 2 As shown, a discharge device 6 is provided at the bottom of the particle separation chamber 22 for discharging material that is retained and ultimately deposited at the bottom of the particle separation chamber 22. The discharge device 6 in this embodiment includes a discharge trough 61 provided at the bottom of the particle separation chamber 22, within which a discharge auger 62 is installed. Of course, the discharge auger 62 is connected to a discharge power source. A discharge port 63 is provided at the lower portion of one end of the discharge trough 61, and a star-shaped discharger 64 is installed at the discharge port 63. The discharge auger 62 pushes the deposited material to the discharge port 63, where it is ultimately discharged by the star-shaped discharger 64. The self-sealing feature of the star-shaped discharger 64 creates a sealing effect at the discharge port 63, preventing it from affecting the negative pressure environment within the mixing box 2.

[0037] like Figure 1 and Figure 2 As shown, a suction pipe 7 is provided on the wall of the particle separation chamber 22. The end of the suction pipe 7 is open, allowing the suction force of the suction fan 3 to generate a strong airflow between the suction pipe 7 and the suction distribution chamber 21. The suction pipe 7 is provided with two raw material feeding ports 72, each of which is equipped with a raw material delivery device 8. These two raw material delivery devices 8 are respectively used to deliver high-quality raw materials with performance exceeding the target requirements and low-quality raw materials with performance below the target requirements. The high-quality and low-quality raw materials delivered into the suction pipe 7 are mixed together by the strong airflow, forming a dusty mixture that then enters the particle separation chamber 22.

[0038] like Figure 1As shown, the raw material feeding device 8 of this embodiment includes a raw material hopper 81 disposed on the frame 1 and higher than the corresponding raw material feeding port 72. A star-shaped feeder 82 is provided at the lower portion of the raw material hopper 81. A feeding guide pipe 83 is provided between the discharge port 63 of the star-shaped feeder 82 and the corresponding raw material feeding port 72. The star-shaped feeder 82 is used to control the feeding speed, and the output raw material is introduced into the suction pipe 7 through the feeding guide pipe 83.

[0039] Preferably, if Figure 2 As shown, the suction pipe 7 includes a mixing section 73 fixedly connected to the wall of the particle separation chamber 22. The end of the mixing section 73 is integrally provided with a downwardly curved suction section 71. The suction section 71 is provided with two raw material feeding ports 72. The downwardly curved suction section 71 promotes the free fall of the two raw materials introduced into the suction section 71. This free fall easily forms a dust storm that quickly permeates the interior of the pipe under the suction force, resulting in better initial mixing within the pipe.

[0040] Preferably, if Figure 1 and Figure 2 As shown, a material receiving box 9 is provided on the frame 1 at the lower end of the suction section 71 to collect small amounts of material that may fall from the lower end of the suction section 71, thereby preventing material waste. An isolation cage 91 covering the lower end of the suction section 71 is fixed to the top opening of the material receiving box 9. The isolation cage 91 prevents external impurities from being drawn into the suction pipe 7 while ensuring the opening of the suction pipe 7 is open, thereby ensuring product cleanliness.

[0041] like Figure 2 and Figure 3 As shown, at least two mixing guide vanes 74 are provided within the suction pipe 7 between the raw material feeding port 72 and the particle separation chamber 22. The mixing guide vanes 74 promote swirl within the suction pipe 7, which further uniformly mixes the dusty material within the pipe, ultimately allowing the two raw materials to enter the particle separation chamber 22 in a uniformly mixed state. In this embodiment, the suction pipe 7 includes a mixing section 73 and a suction section 71, and the mixing guide vanes 74 are provided within the mixing section 73.

[0042] More specifically, the mixing guide vanes 74 include a windward end 75 and a leeward end 76, which are arranged at a 90-degree angle. The mixing guide vanes 74 are arranged in a spiral shape, twisting 90 degrees from the windward end 75 to the leeward end 76. This short spiral guide creates a swirling flow within the tube, and the multi-stage guide vanes 74 further enhance the uniform mixing effect. The spiral directions of the mixing guide vanes 74 are arranged in the same direction to reduce wind resistance generated by the mixing guide vanes 74, thereby maintaining both strong airflow and uniform mixing within the tube.

[0043] Preferably, the windward end 75 of the downstream mixing guide blade 74 and the leeward end 76 of the upstream adjacent mixing guide blade 74 are arranged at a 90° angle. The swirl mixing principle of the mixing guide blade 74 is as follows: when the airflow passes through the windward end 75 of the mixing guide blade 74, it is divided into two streams. The blade's curved surface causes both streams to form spiral flows in the same direction. When the two swirls leave the mixing guide blade 74, the spiral flows cause them to collide with each other, thus generating a mixing effect. In this embodiment, by arranging the windward ends 75 of the downstream mixing guide blades 74 at a 90° angle, the windward end 75 of the downstream mixing guide blade 74 is forced to divide the airflow into two streams containing different materials, and then perform swirl-guided mixing, which further enhances the mixing effect.

[0044] Preferably, a buffer gap 77 is provided between two adjacent mixing guide blades 74. The buffer gap 77 forms a buffer space after the swirl mixing of the mixing guide blade 74. The airflow guided by the swirl can form an obvious mixing in the buffer space, and then be introduced into the next mixing guide blade 74 for further swirl mixing, thereby further improving the mixing effect.

[0045] In this embodiment, the two raw material feeding devices 8 are used to feed high-quality raw materials and low-quality raw materials into the suction pipe 7 in proportion. The two raw materials form a dust-like mixture in the suction pipe 7 under negative pressure suction, and after the forced swirl action of the mixing guide blades 74, a more uniform mixture is formed; the mixed materials are retained in the particle separation chamber 22 under the action of their own weight and the obstruction of the particle separation device 4 and gradually deposited to the bottom of the particle separation chamber 22, and finally output by the discharging device 6. The entire mixing process is continuously operated, and the efficiency is improved by 3 to 4 times compared to the screw belt machine. The raw materials are mixed in the form of dust, without external force squeezing, and are not easy to hang on the wall. Therefore, the adhesion and agglomeration of zinc oxide are significantly reduced, and there are no hard particles in the final product, which is conducive to ensuring the quality of the final product.

[0046] This embodiment also provides a method for using the air suction homogenizer, which includes the following steps.

[0047] Step 1: Select two portions of raw materials for supply to the two raw material feeding devices 8, wherein the two portions of raw materials are respectively a high-quality raw material exceeding the target index and a low-quality raw material below the target index. In actual production, when zinc oxide is transported in turnover bags, it is preferred that one turnover bag of zinc oxide be considered as one portion of raw material.

[0048] Step 2: Samples are taken from at least three different locations in each of the high-quality and low-quality raw materials, and their performance indicators are measured. The performance indicators for each sample of the low-quality raw material are denoted as a1, a2, ..., and an, with the lowest performance indicator being used as performance indicator a for the low-quality raw material. The performance indicators for each sample of the high-quality raw material are denoted as b1, b2, ..., and bn, with the lowest performance indicator being used as performance indicator b for the high-quality raw material. The target performance indicator for the resulting mixed material is denoted as c.

[0049] Step 3: Based on the feeding speed of the low-quality raw materials at the corresponding raw material feeding device 8, the feeding speed of the high-quality raw materials at the corresponding raw material feeding device 8 is fed at a speed of k (ca) / (bc); wherein k is the guarantee coefficient, and the value is 1.05 to 1.1.

[0050] By using the above method, regardless of whether high-quality or low-quality raw materials are used, the content of any part of the resulting mixed zinc oxide will not be lower than the target index. The following examples are given to further illustrate this.

[0051] For example, if the target lead content (c) for zinc oxide is 500ppm, two samples of zinc oxide are selected: a low-quality raw material with a lead content of approximately 1000ppm, and a high-quality raw material with a lead content of approximately 300ppm. Samples are taken from the low-quality raw material at three different heights: high, medium, and low. After testing, the three samples of the low-quality raw material have a lead content of 1020ppm, 980ppm, and 970ppm, respectively; and the three samples of the high-quality raw material have a lead content of 310ppm, 300ppm, and 280ppm, respectively. Therefore, the target lead content (a) for the low-quality raw material is 1020ppm, and the target lead content (b) for the high-quality raw material is 310ppm. The guarantee factor (k) is 1.05. The ratio of the high-quality raw material to the low-quality raw material is 1.05*(500-1020) / (310-500)≈2.87, resulting in a high-quality to low-quality raw material ratio of 2.87:1.

[0052] When the concentrations of the low-quality and high-quality raw materials added at a given moment are both at their minimum levels—1020 ppm and 310 ppm, respectively—the resulting mixed zinc oxide has a concentration of approximately (1020 + 310 * 2.87) / (1 + 2.87) ≈ 493 ppm. When the concentrations of the low-quality and high-quality raw materials added at a given moment are 980 ppm and 300 ppm, respectively, the resulting mixed zinc oxide has a concentration of approximately (980 + 300 * 2.87) / (1 + 2.87) ≈ 475 ppm. When the concentrations of the low-quality and high-quality raw materials added at a given moment are 970 ppm and 280 ppm, respectively, the resulting mixed zinc oxide has a concentration of approximately (970 + 280 * 2.87) / (1 + 2.87) ≈ 458 ppm. These concentrations are all above target, minimizing the impact of uneven zinc oxide impurity content and further ensuring final product quality.

[0053] When the same two raw materials are mixed using a ribbon mill, the actual sample test data that can represent the index of the final mixed material is mostly around 470ppm. The index of the mixed zinc oxide obtained in this embodiment fluctuates around this index. Therefore, the amount of high-quality raw materials consumed to produce the same amount of mixed zinc oxide is not much different, and thus the profit is not greatly affected. That is, this embodiment can generate profits similar to those of the ribbon mill while significantly improving the mixing efficiency.

[0054] The above sample testing of each raw material can be carried out in advance before the mixing operation. After the index data is determined, the turnover bag of the corresponding raw material is marked. When the raw material is put into use, the feeding ratio can be easily calculated according to the index data, and then the feeding speed of the corresponding raw material feeding device 8 can be adjusted. Therefore, the driving motor of the star-shaped feeder 82 in the raw material feeding device 8 is preferably a variable frequency motor to facilitate the control of the feeding speed.

[0055] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. An air suction type homogenizing mixer, comprising a frame on which a mixing box is fixed, characterized in that: The mixing box includes an upper suction and air distribution chamber and a lower particle separation chamber, wherein a particle separation device for preventing particles from entering the suction and air distribution chamber is provided between the suction and air distribution chamber and the particle separation chamber; the suction and air distribution chamber is connected to a suction fan, and a discharge device is provided at the bottom of the particle separation chamber; A suction pipe is provided on the wall of the particle separation chamber, with the end of the suction pipe being open; two raw material feeding ports are provided on the suction pipe, each of which is provided with a raw material feeding device; at least two mixing guide vanes are provided in the suction pipe between the raw material feeding ports and the particle separation chamber; The mixing guide blade includes a windward end and a leeward end, the windward end and the leeward end are arranged crosswise at 90°, and the mixing guide blade is arranged in a spiral shape twisted 90° from the windward end to the leeward end; the spiral directions of the mixing guide blades are the same.

2. The air suction type homogenizer according to claim 1, characterized in that: The windward end of the downstream mixing guide blade and the leeward end of the upstream adjacent mixing guide blade are arranged to cross each other at 90 degrees.

3. The air suction type homogenizer according to claim 1, characterized in that: A buffer interval is provided between two adjacent mixing guide blades.

4. The air suction type homogenizer according to claim 1, characterized in that: The suction pipe includes a mixing section fixedly connected to the wall of the particle separation chamber, and the end of the mixing section is integrally provided with a suction section bent obliquely downward; the suction section is provided with two raw material feeding ports, and the mixing guide blade is provided in the mixing section.

5. The air suction type homogenizer according to claim 4, characterized in that: A material receiving box is provided on the frame at the lower end of the suction section, and an isolation cage covering the lower port of the suction section is fixedly provided at the top opening of the material receiving box.

6. The air suction type homogenizer according to claim 1, characterized in that: The raw material feeding device includes a raw material hopper arranged on the frame and higher than the corresponding raw material feeding port, a star-shaped feeder is provided at the lower part of the raw material hopper, and a feeding guide pipe is provided between the discharge port of the star-shaped feeder and the corresponding raw material feeding port.

7. The air suction type homogenizer according to claim 1, characterized in that: The particle separation device includes a partition fixedly arranged in the mixing box, and a plurality of separation installation holes are provided on the partition that pass through the partition up and down. A filter bag assembly is installed at each of the separation installation holes and hangs down into the particle separation chamber.

8. The air suction type homogenizer according to claim 1, characterized in that: The discharging device includes a discharging trough arranged at the bottom of the particle separation chamber, a discharging auger is installed in the discharging trough, a discharging port is provided at the lower part of one end of the discharging trough, and a star-shaped discharging device is installed at the discharging port.

9. The method for using the air suction homogenizer according to any one of claims 1 to 8, characterized in that: The steps include: Step 1: Select two portions of raw materials to be supplied to the two raw material feeding devices, wherein the two portions of raw materials are respectively a high-quality raw material having a quality higher than the target index and a low-quality raw material having a quality lower than the target index; Step 2: Samples are taken from at least three different locations in the high-quality raw material and the low-quality raw material, and their index data are measured; the index data measured for each sample in the low-quality raw material are respectively recorded as a1, a2, ..., an, and the data with the lowest index is taken as the index data a of the low-quality raw material; the index data measured for each sample in the high-quality raw material are respectively recorded as b1, b2, ..., bn, and the data with the lowest index is taken as the index data b of the high-quality raw material; the target index of the desired mixed material is recorded as c; Step 3: Based on the feeding speed of the low-quality raw materials at the corresponding raw material feeding device, the feeding speed of the high-quality raw materials at the corresponding raw material feeding device is fed at a speed of k (ca) / (bc); wherein k is the guarantee coefficient, and the value is 1.05 to 1.1.

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