Grain drying equipment with impurity removing function

Abstract

The utility model provides a grain drying equipment with the function is removed to the impurity, relates to drying equipment technical field, include: drying jar, the jar body of drying jar is hung and is equipped with the controller, the side jar body of drying jar is equipped with hot -blast air inlet tank along the direction of tangent, and hot -blast air inlet tank is linked together with the hot -blast air supply equipment of outside, the upper end of drying jar is the structure of upper narrow lower wide, and the upper end fixed docking of drying jar removes the impurity tank, the upper end fixed mounting of removing the impurity tank removes the impurity motor. Through along drying jar tangent direction arrangement of hot -blast air inlet tank, and make its air injection hole blow air along tangent, have formed the strong cyclone hot -blast air field in the jar. The design greatly enhanced the contact area and contact time of hot -blast and grain particle, made the heat and mass transfer process more intense and uniform, thereby fundamentally improved drying efficiency and energy utilization rate, effectively avoided the phenomenon that local drying is insufficient or excessive.

Description

Technical Field

[0001] This utility model relates to the field of drying equipment technology, and in particular to a grain drying equipment with a purification function. Background Technology

[0002] In the post-harvest processing of grain, drying is a crucial step in ensuring safe grain storage. Traditional grain drying equipment typically focuses on hot air drying, but it generally suffers from poor drying uniformity and low heat energy utilization. Simultaneously, grains often contain light impurities such as bran and dust. If these impurities are not removed promptly during the drying process, they will not only affect the quality of the finished grain but may also clog equipment, impede hot air flow, and even become a potential source of mold. In existing technologies, drying and impurity removal are mostly separate, independent processes. This not only increases the complexity of the process and the equipment footprint but also prolongs the overall processing time, leading to reduced production efficiency. Furthermore, some equipment that attempts to integrate impurity removal functions has limited efficiency, making it difficult to effectively separate and remove light impurities from the grain during drying. Utility Model Content

[0003] This utility model relates to a grain drying equipment with impurity removal function, which can integrate efficient drying and efficient impurity removal into one grain processing equipment and realize automated control.

[0004] In a first aspect, this utility model provides a grain drying device with a purification function, specifically comprising: a drying tank; a controller mounted on the tank body; a hot air inlet box provided along the tangential direction on one side of the tank body, the hot air inlet box being connected to an external hot air supply device; the upper end of the drying tank having a structure that is narrower at the top and wider at the bottom, and the upper end of the drying tank being fixedly connected to a purification box; a purification motor being fixedly installed on the upper end of the purification box; a feeding pipe being installed on one side of the upper end of the drying tank; a stirring motor being installed on the lower end of the drying tank; a stirring shaft being vertically rotatably installed on the lower end of the drying tank, a purification shaft being rotatably installed on the upper end of the stirring shaft, the lower end of the stirring shaft being fixedly connected to the rotating shaft of the stirring motor via a coupling, and the rotating shaft of the purification motor being fixedly connected to the upper end of the purification shaft via a coupling.

[0005] Optionally, an arc-shaped discharge door is provided on one side of the drying tank, one end of which is hinged to the drying tank, and the lower end of the discharge door is flush with the lower end of the inner cavity of the drying tank.

[0006] Optionally, the inner end of the hot air inlet box extends into the drying tank, and the inner end of the hot air inlet box is provided with vertically spaced and evenly spaced air jet holes that blow air along the tangent of the inner cavity of the drying tank. The outer end of the hot air inlet box is provided with an air inlet pipe.

[0007] Optionally, an air outlet pipe is fixedly provided on one side of the impurity removal box along the tangential direction.

[0008] Optionally, the stirring shaft is provided with vertically spaced scraper bars arranged in a ring.

[0009] Optionally, the upper end of the impurity removal shaft is provided with an impurity removal ...

[0010] This utility model provides a grain drying device with impurity removal function, which has the following beneficial effects: First, by arranging the hot air inlet box tangentially along the drying tank and directing airflow through its jet nozzles tangentially, a powerful swirling hot air field is created inside the tank. This design significantly enhances the contact area and time between the hot air and the grain particles, making the heat and mass transfer process more intense and uniform, thereby fundamentally improving drying efficiency and energy utilization, and effectively avoiding localized under-drying or over-drying. Second, the equipment creatively integrates stirring and impurity removal functions into the same shaft system. A stirring motor drives the lower stirring shaft and scraper to mechanically agitate the grain, preventing clumping. Simultaneously, a separate impurity removal motor drives the upper impurity removal shaft and impurity removal impurity wheel to rotate at high speed, generating a directional negative pressure airflow. This synergistic effect of mechanical stirring and airflow impurity removal actively and promptly removes light impurities from the grain during drying, and facilitates their discharge through tangentially positioned air outlets using centrifugal force. This achieves perfect synchronization of the drying and impurity removal processes, significantly improving the cleanliness of the finished grain and overall production efficiency. Furthermore, the dryer's narrow top and wide bottom structure, along with the rational design of the arc-shaped discharge gate, not only facilitates grain aggregation and airflow guidance but also ensures smooth and thorough unloading. Attached Figure Description

[0011] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.

[0012] In the attached diagram: Figure 1 A first axial view structural schematic diagram of the present invention is shown; Figure 2 A schematic diagram of the second axial view structure of this utility model is shown; Figure 3 This diagram shows a schematic axial view of the drying tank in a semi-sectional state according to the present invention. Figure 4 The diagram shows a schematic axial view of the separation state of the stirring shaft and the impurity removal shaft of this invention.

[0013] List of reference numerals in the attached diagram: 1. Drying tank; 101. Discharge door; 2. Controller; 3. Hot air inlet box; 301. Air inlet pipe; 302. Air jet hole; 4. Impurity removal box; 401. Air outlet pipe; 5. Feeding pipe; 6. Stirring motor; 7. Impurity removal motor; 8. Stirring shaft; 801. Scraper rod; 9. Impurity removal shaft; 901. Impurity removal impeller. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the described embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0015] Please refer to Figures 1 to 4 : Example 1: This utility model proposes a grain drying equipment with impurity removal function, including: a drying tank 1; a controller 2 mounted on the tank body of the drying tank 1; a hot air inlet box 3 provided along the tangential direction on one side of the tank body of the drying tank 1, the hot air inlet box 3 being connected to an external hot air supply device; the upper end of the drying tank 1 has a structure that is narrow at the top and wide at the bottom, and the upper end of the drying tank 1 is fixedly connected to an impurity removal box 4; an impurity removal motor 7 is fixedly installed on the upper end of the impurity removal box 4; a feeding pipe 5 is installed on one side of the upper end of the drying tank 1; a stirring motor 6 is installed on the lower end of the drying tank 1; a stirring shaft 8 is vertically rotatably installed on the lower end of the drying tank 1, and an impurity removal shaft 9 is rotatably installed on the upper end of the stirring shaft 8; the lower end of the stirring shaft 8 is fixedly connected to the rotating shaft of the stirring motor 6 through a coupling, and the rotating shaft of the impurity removal motor 7 is fixedly connected to the upper end of the impurity removal shaft 9 through a coupling.

[0016] The drying tank 1 has an arc-shaped discharge door 101 on one side. One end of the discharge door 101 is hinged to the drying tank 1, and the lower end of the discharge door 101 is flush with the lower end of the inner cavity of the drying tank 1.

[0017] The hot air intake box 3 extends into the drying tank 1. The hot air intake box 3 has vertically spaced and evenly spaced jet holes 302 that blow air along the tangent of the inner cavity of the drying tank 1. The hot air intake box 3 has an air intake pipe 301 at its outer end.

[0018] Among them, an air outlet pipe 401 is fixedly provided on one side of the impurity removal box 4 along the tangential direction.

[0019] Among them, scraper rods 801 with uniform vertical spacing are distributed in a ring on the stirring shaft 8.

[0020] In Example 2, based on Example 1, a cleaning impurity wheel 901 is provided at the upper end of the cleaning shaft 9. The cleaning impurity wheel 901 is located in the inner cavity of the cleaning box 4. The cleaning impurity wheel 901 rotates to suck out the grain bran in the drying tank 1.

[0021] The following further explains the function and effect of each structure mentioned above to help those skilled in the art better understand the technical solution: The drying tank 1 performs grain drying. A controller 2 is mounted on the tank body to centrally control the equipment's operating parameters, such as temperature and wind speed, ensuring automation and precision in the drying process. A hot air inlet box 3 is provided tangentially on one side of the drying tank 1. This hot air inlet box 3 is connected to an external hot air supply device, allowing hot air to be introduced into the drying tank 1. Its inner end extends into the drying tank 1 and is equipped with vertically spaced, evenly spaced air jets 302. These air jets 302 blow air tangentially along the inner cavity of the drying tank 1, forming a swirling hot airflow, enhancing the contact area and uniformity between the hot air and the grain, thereby improving drying efficiency and energy utilization. The upper end of the drying tank 1 is designed with a narrow top and wide bottom structure, which is beneficial for grain aggregation and airflow guidance. A cleaning box 4 is fixedly connected to the upper end of the cleaning box 4, and a cleaning motor 7 is installed on the upper end of the cleaning box 4 to drive the cleaning function. A vent pipe 401 is fixedly installed tangentially on one side of the impurity removal box 4 to discharge impurities, bran, and moisture generated during the drying process, maintaining the pressure balance inside the tank. A feeding pipe 5 is installed on one side of the upper end of the drying tank 1 for easy and rapid addition of grain, while a stirring motor 6 is installed at the lower end to drive the stirring shaft 8 to rotate. The stirring shaft 8 is vertically rotatable at the lower end of the drying tank 1, and its lower end is fixedly connected to the rotating shaft of the stirring motor 6 via a coupling. Vertically spaced scraper rods 801 are evenly distributed in a ring on the stirring shaft 8. These scraper rods 801 can effectively stir the grain when rotating, preventing clumping and promoting uniform heating and drying of the grain. A cleaning shaft 9 is rotatably mounted on the upper end of the stirring shaft 8. The upper end of the cleaning shaft 9 is fixedly connected to the rotating shaft of the cleaning motor 7 via a coupling. A cleaning impurity impeller 901 is provided on the upper end of the cleaning shaft 9. The cleaning impeller 901 is located in the inner cavity of the cleaning box 4. When the cleaning motor 7 drives the cleaning shaft 9 to rotate, the cleaning impeller 901 generates a negative pressure airflow, which sucks out light impurities such as bran from the grain in the drying tank 1 and discharges them through the air outlet pipe 401, thereby achieving efficient impurity removal and improving the quality of the finished grain. In addition, an arc-shaped discharge door 101 is opened on one side of the drying tank 1. One end of the discharge door 101 is hinged to the drying tank 1, and its lower end is flush with the lower end of the inner cavity of the drying tank 1, which facilitates the smooth discharge of the dried grain and simplifies the operation process.

[0022] Working Principle: In operation, the grain to be processed is first added to the drying tank 1 through the feeding pipe 5. After the equipment is started, hot air generated by the external hot air supply equipment is sent into the drying tank 1 through the hot air inlet box 3. Specifically, the hot air is injected tangentially into the inner cavity of the drying tank 1 from the vertically spaced, evenly distributed jet holes 302 at the inner end of the hot air inlet box 3. This creates a strong swirling hot air field inside the drying tank 1. This swirling hot air not only greatly increases the contact area and contact time with the grain particles, but also causes the grain to circulate within the tank, thereby achieving efficient and uniform heating and drying of the grain and effectively improving the thermal energy utilization efficiency.

[0023] Simultaneously, the stirring motor 6 installed at the lower end of the drying tank 1 starts working, driving the stirring shaft 8 to rotate. The multi-layer scraper rods 801 fixed on the stirring shaft 8 rotate accordingly, continuously turning and stirring the grain deposited at the bottom of the tank. This mechanical stirring action complements the aforementioned swirling hot air field, further breaking up any possible agglomeration of the grain, ensuring that all grain particles are heated evenly, avoiding localized overheating or insufficient drying, and guaranteeing the final drying quality.

[0024] During the drying process, light impurities mixed in with the grain, such as bran and dust, need to be removed. At this time, the impurity removal motor 7, installed at the top of the impurity removal box 4, starts, driving the impurity removal shaft 9 to rotate at high speed. The impurity removal impurity impeller 901, fixed to the top of the impurity removal shaft 9, rotates at high speed within the inner cavity of the impurity removal box 4, creating a negative pressure area. This negative pressure draws upwards the light impurities and humid air floating in the drying tank 1. The drawn-out impurities and airflow are discharged from the system through the air outlet pipe 401, which is tangentially positioned along the impurity removal box 4. This tangential outlet design facilitates the formation of a swirling airflow, using centrifugal force to better separate the impurities from the airflow and discharge them, thus achieving simultaneous drying and impurity removal, significantly improving the cleanliness of the finished grain.

[0025] The entire drying process is centrally controlled and regulated by the controller 2 mounted on the tank body. Operators can easily set and monitor key parameters such as temperature, wind speed, and running time. After the drying process is completed, the arc-shaped discharge door 101 hinged to one side of the drying tank 1 is opened. Since the lower end of the discharge door 101 is flush with the lower end of the inner cavity of the drying tank 1, the grain that has been thoroughly dried and cleaned can be smoothly discharged out of the tank under the assistance of gravity and the scraper rod 801, completing the entire processing flow.

[0026] The following points should be noted in this article: 1. The accompanying drawings of this utility model embodiment only involve the structures involved in this utility model embodiment; other structures can refer to general designs.

[0027] 2. Where there is no conflict, the embodiments of this utility model and the features in the embodiments can be combined with each other to obtain new embodiments.

[0028] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A grain drying device with impurity removal function, characterized in that, include: Drying tank (1); a controller (2) is mounted on the tank body of the drying tank (1); a hot air inlet box (3) is provided on one side of the tank body along the tangential direction, and the hot air inlet box (3) is connected to an external hot air supply device; the upper end of the drying tank (1) has a structure that is narrow at the top and wide at the bottom, and the upper end of the drying tank (1) is fixedly connected to a cleaning box (4); a cleaning motor (7) is fixedly installed on the upper end of the cleaning box (4); a feeding pipe (5) is installed on one side of the upper end of the drying tank (1); a stirring motor (6) is installed on the lower end of the drying tank (1); a stirring shaft (8) is vertically rotatably installed on the lower end of the drying tank (1), and a cleaning shaft (9) is rotatably installed on the upper end of the stirring shaft (8). The lower end of the stirring shaft (8) is fixedly connected to the rotating shaft of the stirring motor (6) through a coupling, and the rotating shaft of the cleaning motor (7) is fixedly connected to the upper end of the cleaning shaft (9) through a coupling.

2. The grain drying equipment with impurity removal function according to claim 1, characterized in that, An arc-shaped discharge door (101) is provided on one side of the drying tank (1). One end of the discharge door (101) is hinged to the drying tank (1), and the lower end of the discharge door (101) is flush with the lower end of the inner cavity of the drying tank (1).

3. The grain drying equipment with impurity removal function according to claim 1, characterized in that, The inner end of the hot air intake box (3) extends into the drying tank (1). The inner end of the hot air intake box (3) is provided with jet holes (302) at vertical intervals. The jet holes (302) blow air along the tangent of the inner cavity of the drying tank (1). The outer end of the hot air intake box (3) is provided with an air intake pipe (301).

4. A grain drying device with impurity removal function according to claim 1, characterized in that, The air outlet pipe (401) is fixedly provided on one side of the impurity removal box (4) along the tangential direction.

5. A grain drying device with impurity removal function according to claim 1, characterized in that, The stirring shaft (8) has vertically spaced scraper rods (801) arranged in a ring.

6. A grain drying device with impurity removal function according to claim 1, characterized in that, The upper end of the impurity removal shaft (9) is provided with an impurity removal impurity wheel (901), which is located in the inner cavity of the impurity removal box (4). The impurity removal impurity wheel (901) rotates to suck out the grain bran in the drying tank (1).

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