Air inlet preheating device of flour mill

Abstract

The utility model discloses an air inlet preheating device of a flour mill, which relates to the technical field of flour mills and is technically characterized by comprising a heating mechanism, the uniform filtering mechanism is mounted at the upper end of the heating mechanism through screws; the preheating air inlet mechanism is rotationally connected to the inner side of the upper end of the uniform filtering mechanism in a threaded mode; the device has the technical effects that the preheating air inlet mechanism is rotationally connected to the inner side of the upper end of the uniform filtering mechanism in a threaded mode, the preheating air inlet mechanism can receive air conveyed by an external fan pipe, and then the air is conveyed to the uniform filtering mechanism to be subjected to uniform flow filtering; and the uniform filtering mechanism can effectively filter impurities in the air, so that when the filtered air passes through the heating mechanism, substances are effectively prevented from being attached to the heating mechanism, and a very good protection effect is achieved.

Description

Technical Field

[0001] This utility model relates to the field of grinding mill technology, specifically to a grinding mill air inlet preheating device. Background Technology

[0002] Preheating the air intake of a grinding mill refers to preheating the air entering the grinding mill to improve grinding efficiency and product quality. Preheating the air can reduce the temperature of the raw materials entering the grinding mill, reduce agglomeration caused by temperature differences, and thus improve the grinding effect.

[0003] The preheating device for the air intake of the grinding mill uses a heating element inside the container. When the heating element is energized, it generates heat to heat the gas entering through the gas supply pipe, thus achieving the purpose of preheating. However, the device cannot effectively filter the external gas it receives. As a result, when the gas containing impurities passes through the heating element, the substances will adhere to the heating element. The heating element will continuously heat the adhered substances, which can easily cause local overheating and damage to the heating element.

[0004] Therefore, we propose a novel inlet preheating device for grinding mills to solve the above-mentioned technical problems. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides a preheating device for the air intake of a grinding mill, which solves the problem that existing preheating devices for the air intake of grinding mills cannot uniformly filter gas impurities, thereby protecting the heating elements.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a preheating device for the air inlet of a grinding mill, comprising:

[0009] Heating mechanism;

[0010] A uniform filtration mechanism is mounted on the upper end of the heating mechanism by screws;

[0011] A preheating air intake mechanism is threadedly rotatably connected to the inner side of the upper end of the uniform filtration mechanism.

[0012] A three-way delivery pipe is installed on the lower end of the heating mechanism by screws;

[0013] A bottom collection mechanism is threadedly rotatably connected to the inner side of the lower end of the three-way delivery pipe.

[0014] Preferably, the heating mechanism includes a heating body shell, an upper mounting flange is fixedly connected to the upper end of the heating body shell, the upper mounting flange is mounted on the uniform filtration mechanism by screws, a lower mounting flange is fixedly connected to the lower end of the heating body shell, the lower mounting flange is mounted on the three-way conveying pipe by screws, a heating element is installed inside the heating body shell, and the outer end of the heating element is electrically connected to a heating power supply line through the heating body shell, the heating power supply line being electrically connected to an external power source.

[0015] Preferably, the three-way conveying pipe includes a top mounting ring that is installed at the lower end of the lower mounting flange by screws, a bottom pipe body that is fixedly connected to the lower end of the top mounting ring, a grinding mill mounting pipe that is fixedly connected to the outer side of the lower end of the bottom pipe body, the grinding mill mounting pipe being connected to the grinding mill air inlet pipe, and a bottom collecting mechanism that is rotatably connected to the inner side of the lower end of the bottom pipe body by threads.

[0016] Preferably, the uniform filtration mechanism includes a filter tank that is mounted on the upper end of the upper mounting flange by screws. A filter cotton pad is adhered and fixed inside the filter tank. A flow equalization disc is fixed above the filter cotton pad on the inner wall of the filter tank. A screw cap mounting groove is opened on the inner side of the upper end of the filter tank. A preheating air intake mechanism is rotatably connected to the filter tank through the screw cap mounting groove.

[0017] Preferably, the preheating air intake mechanism includes a connecting screw cap, and an air intake connecting pipe is fixedly connected through the middle of the connecting screw cap. The air intake connecting pipe is rotatably connected to the filter tank through the connecting screw cap thread, and the air intake connecting pipe is connected to an external fan pipe.

[0018] Preferably, the bottom collecting mechanism includes an assembly screw tube that is threadedly rotatably connected to the lower end of the bottom tube body. The assembly screw tube has a receiving cavity inside. A hollow frustum shell is fixedly connected to the lower end of the assembly screw tube. A collecting bottle tube is fixedly connected to the lower end of the hollow frustum shell. An outer handle is symmetrically fixed to the outer wall of the collecting bottle tube.

[0019] Preferably, a rubber gasket is placed at the connection between the filter tank and the upper mounting flange, and the connection between the filter tank and the upper mounting flange is aligned.

[0020] Preferably, the lower inner side of the bottom tube body is provided with an installation thread groove corresponding to the assembly screw tube.

[0021] (III) Beneficial Effects

[0022] Compared with the prior art, the present invention provides a preheating device for the air inlet of a grinding mill, which has the following beneficial effects:

[0023] 1. The preheating air intake mechanism of this utility model is threadedly rotated and connected to the upper inner side of the uniform filtration mechanism. The preheating air intake mechanism can receive the gas delivered by the external fan pipe and then deliver it to the uniform filtration mechanism for uniform filtration. The uniform filtration mechanism can effectively filter impurities in the air, so that when the filtered gas passes through the heating mechanism, it can effectively prevent substances from adhering to the heating mechanism, thus playing a good protective role.

[0024] 2. This utility model achieves uniform flow filtration by setting up a uniform filtration mechanism. A filter cotton pad is adhered and fixed inside the filter tank of the uniform filtration mechanism. The filter tank can filter impurities in the air through the filter cotton pad. A flow equalization disc is fixed above the filter cotton pad on the inner wall of the filter tank. The flow equalization disc can uniformly transport the gas. In this way, the filter cotton pad can evenly receive the input gas for filtration, making the filtration more uniform and efficient. A screw cap mounting groove is opened on the inner side of the upper end of the filter tank. A preheating air intake mechanism is rotatably connected to the filter tank through the screw cap mounting groove, so that the preheating air intake mechanism can be easily rotated and installed. Attached Figure Description

[0025] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0026] Figure 2 This is a schematic diagram showing the separate structure of the preheating air intake mechanism, the uniform filtration mechanism, and the heating mechanism of this utility model;

[0027] Figure 3 This is a schematic diagram of the bottom collecting mechanism of this utility model;

[0028] Figure 4 This is a schematic diagram of the heating mechanism structure of this utility model;

[0029] Figure 5 This is a schematic diagram of the three-way delivery pipe structure of this utility model.

[0030] In the picture:

[0031] 1. Air inlet connecting pipe; 11. Connecting screw cap; 2. Filter tank; 21. Flow equalization disc; 22. Filter cotton pad; 23. Screw cap mounting groove; 3. Heating power cord; 31. Heating unit outer shell; 32. Lower mounting flange; 33. Upper mounting flange; 34. Heating element; 4. Bottom tube; 41. Grinding mill mounting pipe; 42. Top mounting ring; 5. Collection bottle tube; 51. Outer handle; 52. Hollow frustum shell; 53. Assembly screw tube; 54. Receiving sleeve cavity. Detailed Implementation

[0032] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0033] Example 1

[0034] This embodiment provides a technical solution: a preheating device for the air inlet of a grinding mill, such as... Figures 1-5 As shown, it includes a heating mechanism, a uniform filtration mechanism, a preheating air intake mechanism, a three-way delivery pipe, and a bottom collection mechanism.

[0035] The uniform filtration mechanism is installed on the upper end of the heating mechanism with screws. The uniform filtration mechanism can effectively filter impurities in the air, thus preventing substances from adhering to the heating mechanism when the filtered gas passes through it, providing a good protective effect. The preheating air intake mechanism is threadedly connected to the inner side of the upper end of the uniform filtration mechanism. The preheating air intake mechanism can receive the gas delivered by the external fan pipe and then deliver it to the uniform filtration mechanism for uniform filtration, making the filtration more uniform and efficient. The three-way delivery pipe is installed on the lower end of the heating mechanism with screws. The three-way delivery pipe can receive and deliver the preheated gas from the heating mechanism. The bottom collection mechanism is threadedly connected to the inner side of the lower end of the three-way delivery pipe. The bottom collection mechanism can collect the grinding material that falls back from the three-way delivery pipe.

[0036] like Figure 1 and Figure 2 As shown, the uniform filtration mechanism includes a filter tank 2 mounted on the upper end of the upper mounting flange 33 by screws. The filter tank 2 is easy to install and remove. A filter cotton pad 22 is adhered and fixed inside the filter tank 2. The filter tank 2 can filter impurities in the air through the filter cotton pad 22 inside. A flow equalization disc 21 is fixed above the filter cotton pad 22 on the inner wall of the filter tank 2. The flow equalization disc 21 can uniformly transport the gas. In this way, the filter cotton pad 22 can uniformly receive the input gas for filtration, making the filtration more uniform and efficient. A screw cap mounting groove 23 is opened on the inner side of the upper end of the filter tank 2. A preheating air intake mechanism is connected to the filter tank 2 through the screw cap mounting groove 23, so that the preheating air intake mechanism is easy to rotate and install.

[0037] A rubber gasket is placed at the connection between the filter tank 2 and the upper mounting flange 33, which makes the installation tighter and more secure, and the connection between the filter tank 2 and the upper mounting flange 33 is aligned so that there will be no obstruction during use.

[0038] The preheating air intake mechanism includes a connecting screw cap 11, which allows for threaded rotation connection. The air intake connecting pipe 1 is threadedly rotated onto the filter tank 2 via the connecting screw cap 11, facilitating threaded installation and removal. The air intake connecting pipe 1 is fixedly connected through the middle of the connecting screw cap 11. The air intake connecting pipe 1 is connected to an external fan pipe. The air intake connecting pipe 1 can receive the gas input from the external fan pipe and then deliver it to the filter tank 2 for filtration.

[0039] During use, the preheating air intake mechanism is threadedly connected to the inner side of the upper end of the uniform filtration mechanism. The preheating air intake mechanism can receive the gas delivered by the external fan pipe and then deliver it to the uniform filtration mechanism for uniform filtration. The uniform filtration mechanism can effectively filter impurities in the air. Thus, when the filtered gas passes through the heating mechanism, it can effectively prevent substances from adhering to the heating mechanism, thus providing a good protective effect. The three-way delivery pipe can receive the preheated gas from the heating mechanism for delivery, and the bottom collection mechanism can receive the grinding material that falls back from the three-way delivery pipe.

[0040] Example 2

[0041] This embodiment is a further optimization based on Embodiment 1. The parts that are the same as those described above will not be repeated here. Figure 1 , Figure 2 and Figure 4 As shown, to further better realize this utility model, the following arrangement is specifically adopted: The heating mechanism includes a heating body shell 31, with an upper mounting flange 33 fixedly connected to the upper end of the heating body shell 31. The upper mounting flange 33 is mounted on the uniform filtration mechanism by screws, and the heating body shell 31 can receive the gas filtered by the uniform filtration mechanism through the upper mounting flange 33. A lower mounting flange 32 is fixedly connected to the lower end of the heating body shell 31, and the lower mounting flange 32 is mounted on the three-way conveying pipe by screws, and the heating body shell 31 can receive the gas filtered by the uniform filtration mechanism through the lower mounting flange 32. The preheated gas is delivered into the three-way delivery pipe. A heating element 34 is installed inside the heating body shell 31. The heating element 34 can be energized and heated through the heating body shell 31. The outer end of the heating element 34 passes through the heating body shell 31 and is electrically connected to a heating power cord 3. The heating element 34 receives the current delivered by the heating power cord 3 and can be energized and heated, thereby effectively heating the gas inside the heating body shell 31 and thus effectively preheating it. The heating power cord 3 is electrically connected to an external power source, which facilitates receiving power from an external power source.

[0042] The three-way conveying pipe includes a top mounting ring 42 installed at the lower end of the lower mounting flange 32 by screws, which facilitates installation and removal. The top mounting ring 42 can receive the preheated gas after the lower mounting flange 32. The lower end of the top mounting ring 42 is connected to the bottom pipe body 4, which can transport the preheated gas to the bottom pipe body 4. The lower outer side of the bottom pipe body 4 is connected to the mill mounting pipe 41, and the preheated gas inside the bottom pipe body 4 can be discharged through the mill mounting pipe 41. The mill mounting pipe 41 is connected to the mill inlet pipe, and the preheated gas can be transported to the mill inlet pipe. The lower inner side of the bottom pipe body 4 is threadedly connected to the bottom collection mechanism, which can receive the grinding material that flows back and falls inside the bottom pipe body 4.

[0043] The lower inner side of the bottom tube 4 is provided with an installation thread groove corresponding to the assembly screw tube 53, which facilitates corresponding installation and connection.

[0044] The bottom collection mechanism includes an assembly screw tube 53 that is threadedly connected to the lower end of the bottom tube 4. The assembly screw tube 53 is easy to install and remove from the bottom tube 4. The assembly screw tube 53 has a receiving cavity 54 inside, through which the assembly screw tube 53 can receive impurities falling from the bottom tube 4. The lower end of the assembly screw tube 53 is fixedly connected to a hollow frustum shell 52, through which the assembly screw tube 53 can transport the received impurities. The lower end of the hollow frustum shell 52 is fixedly connected to a collection bottle tube 5, through which the hollow frustum shell 52 can transport impurities. The outer wall of the collection bottle tube 5 is symmetrically fixed with an outer handle 51, through which the collection bottle tube 5 is easy to grip and rotate.

[0045] The above are merely specific embodiments of this utility model, but the technical features of this utility model are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on this utility model to solve essentially the same technical problems and achieve essentially the same technical effects are all covered within the protection scope of this utility model.

Claims

1. A flour mill air inlet preheating device, characterized by, Include: Heating mechanism; Uniform filtering mechanism, the uniform filtering mechanism is installed by screw in the upper end of heating mechanism; Preheating intake mechanism, the preheating intake mechanism is screw thread rotation connection in the inner side of the upper end of uniform filtering mechanism; Three-way delivery pipe, the three-way delivery pipe is installed by screw on the lower end of heating mechanism; Bottom collection mechanism, the bottom collection mechanism is screw thread rotation connection on the inner side of the lower end of three-way delivery pipe.

2. A mill air preheating device according to claim 1, characterized in that: The heating mechanism includes a heating machine body shell (31), the upper end of the heating machine body shell (31) is through the solid connection with the upper side mounting flange (33), the upper side mounting flange (33) is installed by screw on the uniform filtering mechanism, the lower end of the heating machine body shell (31) is through the solid connection with the lower side mounting flange (32), the lower side mounting flange (32) is installed by screw on the three-way delivery pipe, the inside of the heating machine body shell (31) is installed with heating element (34), the outer end of the heating element (34) is electrically connected with heating power line (3) through the heating machine body shell (31), the heating power line (3) is electrically connected with external power supply.

3. A mill air preheating device according to claim 2, characterized in that: The three-way delivery pipe includes the top installation ring (42) that is installed by screw on the lower end of the lower side mounting flange (32), the lower end of the top installation ring (42) is through the solid connection with the bottom pipe body (4), the lower end of the bottom pipe body (4) is through the solid connection with the outer side of the mill installation pipe (41), the mill installation pipe (41) is connected with the mill intake pipe, the lower end of the bottom pipe body (4) is screw thread rotation connection with the bottom collection mechanism.

4. A mill air preheating device according to claim 2, characterized in that: The uniform filtering mechanism includes the filter tank body (2) that is installed by screw on the upper end of the upper side mounting flange (33), the inside of the filter tank body (2) is solidly connected with filter cotton pad (22), the upper side of the filter cotton pad (22) is solidly connected with the uniform flow disc (21) on the inner wall in the filter tank body (2), the upper end of the filter tank body (2) is provided with screw cover installation slot (23), the filter tank body (2) is screw thread rotation connection with the preheating intake mechanism through the screw cover installation slot (23).

5. A mill air preheating device according to claim 4, characterized in that: The preheating intake mechanism includes connecting screw cover (11), the inside of the connecting screw cover (11) is through the solid connection with intake connecting pipe (1), the intake connecting pipe (1) is screw thread rotation connection on the filter tank body (2) through the connecting screw cover (11), the intake connecting pipe (1) is connected with the external fan pipe.

6. A mill air preheating device according to claim 3, characterized in that: The bottom collection mechanism includes the assembly screw pipe (53) that is screw thread rotation connection on the lower end of the bottom pipe body (4), the inside of the assembly screw pipe (53) is provided with receiving sleeve cavity (54), the lower end of the assembly screw pipe (53) is through the solid connection with hollow circular truncated cone shell (52), the lower end of the hollow circular truncated cone shell (52) is through the solid connection with collection bottle pipe (5), the outer wall of the collection bottle pipe (5) is symmetrically solidly connected with the outer side handle (51).

7. A mill air preheating device according to claim 4, characterized in that: The connecting place of the filter tank body (2) and the upper side mounting flange (33) is placed with rubber pad, and the connecting place of the filter tank body (2) and the upper side mounting flange (33) is aligned.

8. A mill air preheating device according to claim 3, characterized in that: The lower end of the bottom pipe body (4) is internally provided with a mounting thread groove corresponding to the assembling screw (53).

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