Circulating tower type winnowing machine

Abstract

The circulating tower type winnowing machine comprises a shell, a buffer hopper, a distributing device and an air circulating system, a material inlet is formed in the top of the shell, a material outlet and an impurity outlet are formed in the bottom of the shell respectively, and the interior of the shell is divided into a winnowing bin, an equipment bin and an impurity collecting bin through a partition plate, and the equipment bin and the impurity collecting bin are located on the two sides of the winnowing bin respectively. The top of the winnowing bin and the top of the impurity collecting bin are open and communicate with each other, the material outlet is formed in the bottom of the winnowing bin, the impurity outlet is formed in the bottom of the impurity collecting bin, and the buffer hopper is installed above the shell and communicates with the material inlet. Materials, entering the shell through the material inlet, in the temporary storage hopper downwards fall into the winnowing cabin from the top opening of the winnowing cabin in a dispersed mode through the material distributor, and the air circulation system comprises an air outlet structure arranged in the winnowing cabin, an air return structure arranged in the impurity collecting cabin and a fan arranged in the equipment cabin. The device is simple in structure, low in preparation cost and suitable for separating impurities from grains.

Description

Technical Field

[0001] The utility model relates to a wind separator, in particular to a circulating tower type wind separator. Background Art

[0002] A wind separator is a device that uses airflow to separate a mixture. It is widely used in the fields of cleaning and grading grains, seeds, etc., enriching and sorting ores, and sorting recyclable materials from construction waste and domestic waste. Depending on the purpose, wind separators can be divided into many types. At present, in response to the specific need of separating light impurities from grains, the wind separators available on the market are either complex in structure, high in energy consumption, or low in wind separation accuracy. Therefore, it is necessary to develop a special wind separation equipment. Utility Model Content

[0003] The utility model aims to provide a newly designed circulating tower air separator, which has a simple structure and low preparation cost and is particularly suitable for separating light impurities from grains.

[0004] A circulating tower air separator is provided, comprising a shell, a buffer bucket, a distributor and an air circulation system, wherein a material inlet is provided at the top of the shell, a material outlet and an impurity outlet are respectively provided at the bottom of the shell, a partition is used to separate the shell into an air separation chamber and an equipment chamber and an impurity collection chamber respectively located on both sides of the air separation chamber, the top of the air separation chamber and the top of the impurity collection chamber are both open-designed and communicated with each other, the material outlet is arranged at the bottom of the air separation chamber, the impurity outlet is arranged at the bottom of the impurity collection chamber, the buffer bucket is installed above the shell and communicated with the material inlet, and the buffer bucket The material entering the shell through the material inlet falls downward from the top opening of the air separation chamber into the air separation chamber in a dispersed manner through the distributor, and the air circulation system comprises an air outlet structure arranged in the air separation chamber, a return air structure arranged in the impurity collection chamber, and a fan arranged in the equipment chamber, the inlet of the fan is connected to the return air structure through a return air duct, and the outlet of the fan is connected to the air outlet structure through an air outlet duct, and the air outlet structure acts wind on the material entering the air separation chamber so that impurities with lighter mass in the material are separated from the material and flow to the impurity collection chamber with the wind.

[0005] According to an embodiment of the present application, the distributor is a conical cylindrical structure with the tip facing upward, and the material entering the outer shell through the material inlet forms a material waterfall on the conical cylindrical structure and falls downward into the air separation chamber.

[0006] According to an embodiment of the present application, a side wall of the air separation chamber is provided on the same wall as the outer shell and is provided with an observation window made of a transparent material.

[0007] According to the embodiment of the present application, except for one side wall of the air separation chamber which is arranged on the same wall as the outer shell, the other side walls of the air separation chamber are spaced apart from the outer shell.

[0008] According to an embodiment of the present application, a filter material is installed on the return air structure, and the filter material can be a filter mesh.

[0009] According to an embodiment of the present application, the air outlet structure includes an annular air outlet pipe, the central axis of the annular air outlet pipe is located in the height direction of the air selection cabin, and the annular air outlet pipe is provided with air outlets. The air outlets generally include air outlets distributed on the upper surface of the annular air outlet pipe.

[0010] According to an embodiment of the present application, the bottom of the air separation chamber and the bottom of the impurity collection chamber both form a conical discharge hopper, the material outlet is the outlet of the conical discharge hopper arranged at the bottom of the air separation chamber, and the impurity outlet is the outlet of the conical discharge hopper arranged at the bottom of the impurity collection chamber.

[0011] The material may be, in particular, food grains, such as rice, millet, wheat, corn, etc. The impurities may be husks and fruit shells that are not completely removed during the threshing process, dust, sand, etc.

[0012] The circulating tower air separator has a simple structure and can efficiently separate the materials in the air separation chamber from the lighter impurities by adjusting the power of the fan.

[0013] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments. Additional aspects and advantages of the present invention will be partially given in the following description, partially become apparent from the following description, or be understood through practice. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings constituting a part of this specification are used to assist the understanding of the present invention. The contents provided in the drawings and the related descriptions in this specification can be used to explain the present invention, but do not constitute an improper limitation on the present invention.

[0015] Figure 1 The figure is a schematic diagram of the external structure of the circulating tower air separator according to an embodiment of the utility model.

[0016] Figure 2 for Figure 1 The schematic diagram of the internal structure of the circulating tower air separator shown is at an angle.

[0017] Figure 3 for Figure 1 Schematic diagram of the internal structure of the circulating tower air separator from another angle.

[0018] Figure 4 for Figure 1The schematic diagram of the internal structure of the circulating tower air separator from another angle is shown.

[0019] Markings in the figure are: 1-housing, 11-material inlet, 12-material outlet, 13-impurity outlet, 14-air separation chamber, 15-equipment chamber, 16-impurity collection chamber, 17-observation window, 2-buffer bucket, 3-distributor, 4-air circulation system, 41-air outlet structure, 411-air outlet duct, 42-return air structure, 43-fan. DETAILED DESCRIPTION

[0020] The utility model is described clearly and completely below in conjunction with the accompanying drawings. A person skilled in the art will be able to implement the utility model based on these descriptions. Before describing the utility model in conjunction with the accompanying drawings, it should be particularly noted that:

[0021] The technical solutions and technical features provided in each section, including the following description, can be combined with each other without conflict. In addition, where possible, these technical solutions, technical features and related combinations can be assigned specific technical themes and protected by relevant patents.

[0022] The embodiments of the utility model involved in the following description are usually only a part of the embodiments rather than all the embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work should fall within the scope of patent protection.

[0023] Regarding the terms and units in this specification: The terms "include", "comprises", "have" and any variations thereof in this specification and the corresponding claims and related parts are intended to cover non-exclusive inclusions. In addition, other relevant terms and units can be reasonably interpreted based on the relevant content provided in this specification.

[0024] Figure 1 The figure is a schematic diagram of the external structure of the circulating tower air separator according to an embodiment of the utility model. Figure 2 for Figure 1 The schematic diagram of the internal structure of the circulating tower air separator shown is at an angle. Figure 3 for Figure 1 Schematic diagram of the internal structure of the circulating tower air separator from another angle. Figure 4 for Figure 1 The internal structure diagram of the circulating tower air separator from another angle is shown in FIG. Figure 1-Figure 4As shown, a circulating tower air separator comprises a shell 1, a buffer bucket 2, a distributor 3 and an air circulation system 4, wherein a material inlet 11 is provided at the top of the shell 1, and a material outlet 12 and an impurity outlet 13 are respectively provided at the bottom of the shell 1, and a wind separation chamber 14 and an equipment chamber 15 and an impurity collection chamber 16 are formed by partitions in the shell 1, respectively located on both sides of the wind separation chamber 14, the top of the wind separation chamber 14 and the top of the impurity collection chamber 16 are both open and connected to each other, the material outlet 12 is arranged at the bottom of the wind separation chamber 14, the impurity outlet 13 is arranged at the bottom of the impurity collection chamber 16, the buffer bucket 2 is installed above the shell 1 and is connected to the material inlet 11, and the buffer bucket 2 is installed above the shell 1 and is connected to the material inlet 11. The material in the bucket 2 that enters the outer shell 1 through the material inlet 11 falls downward from the top opening of the air separation chamber 14 into the air separation chamber 14 in a dispersed manner through the distributor 3. The air circulation system 4 includes an air outlet structure 41 arranged in the air separation chamber 14, a return air structure 42 arranged in the impurity collection chamber 16, and a fan 43 arranged in the equipment chamber 15. The inlet of the fan is connected to the return air structure 42 through a return air duct, and the outlet of the fan is connected to the air outlet structure 41 through an air outlet pipe 411. The air outlet structure 41 uses wind to act on the material entering the air separation chamber 14, so that the lighter impurities in the material are separated from the material and flow to the impurity collection chamber 16 with the wind.

[0025] In this embodiment, the distributor 3 is a conical structure with the tip facing upward, and the material entering the housing 1 through the material inlet 11 forms a material waterfall on the conical structure and falls downward into the air separation chamber 14.

[0026] In this embodiment, one side wall of the wind separation cabin 14 is provided with the shell 1 and has an observation window 17 made of transparent material. Except for one side wall of the wind separation cabin 14 being provided with the shell 1, the other side walls of the wind separation cabin 14 are spaced apart from the shell 1.

[0027] In this embodiment, a filter material is installed on the return air structure 42. The filter material is specifically a filter mesh.

[0028] In this embodiment, the air outlet structure 41 includes an annular air outlet pipe 411, the central axis of which is located in the height direction of the air separation chamber 14, and air outlets are distributed on the annular air outlet pipe 411. The air outlets usually include air outlets distributed on the upper surface of the annular air outlet pipe 411.

[0029] In this embodiment, the bottom of the air separation chamber 14 and the bottom of the impurity collection chamber 16 both form a conical discharge hopper, the material outlet 12 is the outlet of the conical discharge hopper arranged at the bottom of the air separation chamber 14, and the impurity outlet 13 is the outlet of the conical discharge hopper arranged at the bottom of the impurity collection chamber 16.

[0030] The material may be, in particular, food grains, such as rice, millet, wheat, corn, etc. The impurities may be husks and fruit shells that are not completely removed during the threshing process, dust, sand, etc.

[0031] The working principle of the above-mentioned circulating tower air separator is as follows: the material (grain) enters the outer shell 1 from the buffer bucket 2, forms a material waterfall through the cloth 3, and evenly falls into the air separation chamber 14. The fan 43 generates an airflow, which enters the air separation chamber 14 through the air outlet duct and the annular air outlet 411 to sweep the falling material. Under the action of the airflow, the lighter impurities in the material (such as husks, dust, etc.) are blown up and enter the impurity collection chamber 16 with the airflow, while the heavier materials (grain) fall into the material outlet at the bottom of the air separation chamber 14. The airflow entering the impurity collection chamber 16 is filtered by the filter material on the return air structure 42, sucked in by the fan and enters the cycle again, forming a continuous air separation process. The sorted material is discharged from the material outlet 12, and the impurities are discharged from the impurity outlet 13, thereby achieving effective separation of the material and impurities.

[0032] The above-mentioned circulating tower air separator has a simple structure and is easy to manufacture and maintain. The shell is divided into an air separation chamber, an equipment chamber and an impurity collection chamber by a partition, and the layout is compact and reasonable. The distributor adopts a conical cylinder design, which can evenly disperse the materials into a waterfall shape, thereby improving the air separation efficiency and sorting accuracy. The air circulation system forms a continuous cycle air separation, making full use of the airflow and saving energy consumption. The air separation chamber is provided with a transparent observation window, which is convenient for observing the air separation process and adjusting the process parameters in time. The bottoms of the air separation chamber and the impurity collection chamber are both conical discharge hoppers, which are conducive to the automatic discharge of materials and impurities and avoid blockage. The return air is filtered through the filter material to prevent the backflow of impurities, ensuring the cleanliness of the system and the air separation effect. By adjusting the fan power, the air separation intensity can be flexibly controlled to meet the sorting needs of different materials. The circulating tower air separator makes full use of the sorting effect of the airflow on the mixture, has a clever structural design, and reasonable material flow, realizing the efficient separation of materials and light impurities. It has good application prospects and is particularly suitable for the cleaning and grading of granular materials such as grains.

[0033] The above is a description of the relevant contents of the utility model. A person skilled in the art will be able to implement the utility model based on these descriptions. Based on the above contents of this specification, all other embodiments obtained by a person skilled in the art without making any creative work shall fall within the scope of patent protection.

Claims

1. Circulating tower air separator, characterized by: The invention comprises a shell (1), a buffer bucket (2), a distributor (3) and an air circulation system (4); the top of the shell (1) is provided with a material inlet (11); the bottom of the shell (1) is provided with a material outlet (12) and an impurity outlet (13); the shell (1) is divided into an air separation chamber (14) and an equipment chamber (15) and an impurity collection chamber (16) respectively located on both sides of the air separation chamber (14); the top of the air separation chamber (14) and the top of the impurity collection chamber (16) are both open-ended and communicated with each other; the material outlet (12) is arranged at the bottom of the air separation chamber (14); the impurity outlet (13) is arranged at the bottom of the impurity collection chamber (16); the buffer bucket (2) is installed above the shell (1) and communicated with the material inlet (11); the buffer bucket (2) is connected to the material inlet (11); The material entering the housing (1) through the material inlet (11) falls downward from the top opening of the air separation chamber (14) into the air separation chamber (14) in a dispersed manner through the distributor (3). The air circulation system (4) comprises an air outlet structure (41) arranged in the air separation chamber (14), a return air structure (42) arranged in the impurity collection chamber (16), and a fan (43) arranged in the equipment chamber (15). The inlet of the fan (43) is connected to the return air structure (42) through a return air duct, and the outlet of the fan (43) is connected to the air outlet structure (41) through an air outlet pipe (411). The air outlet structure (41) applies wind to the material entering the air separation chamber (14), so that impurities with lighter weight in the material are separated from the material and flow to the impurity collection chamber (16) with the wind.

2. The circulating tower air separator according to claim 1, characterized in that: The distributor (3) is a conical cylindrical structure with the tip pointing upwards, and the material entering the housing (1) through the material inlet (11) forms a material waterfall on the conical cylindrical structure and falls downwards into the air separation chamber (14).

3. The circulating tower air separator according to claim 1, characterized in that: A side wall of the air separation chamber (14) is provided on the same wall as the outer shell (1) and is provided with an observation window (17) made of a transparent material.

4. The circulating tower air separator according to claim 3, characterized in that: Except for one side wall of the air separation chamber (14) which is arranged on the same wall as the outer shell (1), the other side walls of the air separation chamber (14) are arranged at a distance from the outer shell (1).

5. The circulating tower air separator according to claim 1, characterized in that: The return air structure (42) is provided with filter material.

6. The circulating tower air separator according to claim 5, characterized in that: The filter material is a filter mesh.

7. The circulating tower air separator according to claim 1, characterized in that: The air outlet structure (41) comprises an annular air outlet pipe (411), the central axis of the annular air outlet pipe (411) is located in the height direction of the air selection chamber (14), and air outlets are distributed on the annular air outlet pipe (411).

8. The circulating tower air separator according to claim 7, characterized in that: The air outlet comprises air outlets distributed on the upper surface of the annular air outlet pipe (411).

9. The circulating tower air separator according to claim 1, characterized in that: The bottom of the air separation chamber (14) and the bottom of the impurity collection chamber (16) both form a conical discharge hopper, the material outlet (12) is the outlet of the conical discharge hopper arranged at the bottom of the air separation chamber (14), and the impurity outlet (13) is the outlet of the conical discharge hopper arranged at the bottom of the impurity collection chamber (16).

10. The circulating tower air separator according to claim 1, characterized in that: The material is specifically food.

Images