A flour milling cooling mechanism and a flour milling production line composed of the same

Abstract

The utility model relates to a kind of flour cooling mechanism and the flour production line by its composition, belong to powder processing equipment technical field.To solve the temperature of finished product powder screened by existing production line is higher and cannot be packaged immediately, leading to unable to assembly line continuous production, and then reduce production efficiency, increase production cost indirectly, the flour cooling mechanism, including the cooling of flour mill industrial air cooler and the exhaust valve being arranged on the upper end of rotary screen shell, the output end of industrial air cooler is equipped with cold air inlet mill pipeline, another end of cold air inlet mill pipeline is communicated with flour mill, cold air inlet mill pipeline is connected with cold air inlet pipe, the output end of cold air inlet pipe is communicated with air inlet pipe, cold air connection pipe by air inlet tee joint, air inlet pipe is equipped with pressure regulating valve, cold air connection pipe is communicated with cold air cooling pipe, the screened finished product powder can be cooled, ensure the continuous production of assembly line, improve production efficiency, and then reduce production cost.

Description

Technical Field

[0001] This utility model relates to a grinding cooling mechanism and a grinding production line composed of the same, belonging to the technical field of powder processing equipment. Background Technology

[0002] With the deepening of the Industrial Revolution, powder production now employs assembly line processes. However, the high temperature of the finished powder sieved by the forced rotary screen in current powder production equipment—the grinding mill—poses a significant bottleneck to modern assembly line processes. Existing powder production lines, such as… Figure 1 As shown, the production line includes a grinding mill 10. The discharge port of the grinding mill 10 is connected to a separator 12 via a pipe. A blower 11 is installed below the separator 12, and a rotary screen is installed at the output end of the blower 11. A dust collector 15 is installed above the separator 12 via a pipe, and a blower 16 is installed at the other end of the dust collector 15 via a pipe. The production process of this powder production line is as follows: The grinding mill 10 grinds the raw materials into powder. Due to the negative pressure of the blower 16, the powder enters the separator 12 through the pipe. The blower 11, connected to the cone of the separator 12, conveys the powder into the rotary screen for sieving. The rotary screen is equipped with a screen mesh, and a forced rotating scraper assembly is installed inside the screen mesh. The forced rotating scraper is driven to rotate by a motor. The powder passes through the forced rotating scraper, and powder of the qualified mesh size passes through the screen mesh. The powder coming out of the grinding mill 10 is already at a high temperature, and the friction from the pipe and the action of the forced scraper on the rotary screen further maintain the high temperature of the powder. The powder screened out by the aforementioned production line cannot be packaged directly. It must be stored in the workshop for a certain cooling time before being sealed and packaged. This creates a significant bottleneck for continuous production on the assembly line, affecting production efficiency and indirectly increasing production costs. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing production lines where the temperature of the finished powder screened out is too high to be packaged immediately, resulting in the inability to carry out continuous production on the assembly line, thereby reducing production efficiency and indirectly increasing production costs. This invention provides a grinding cooling mechanism and a grinding production line composed of the mechanism, which can cool the screened finished powder, ensuring continuous production on the assembly line, improving production efficiency, and thus reducing production costs.

[0004] To solve the above problems, this application provides the following technical solution: A grinding mill cooling mechanism is characterized by comprising an industrial air cooler for cooling the grinding mill and an exhaust valve located on the upper end of the rotary screen housing. The output end of the industrial air cooler is provided with a cold air inlet pipe, the other end of which is connected to the grinding mill. A cold air inlet pipe is connected to the cold air inlet pipe, and the output end of the cold air inlet pipe is connected to an air inlet pipe and a cold air connecting pipe via an air inlet tee. A pressure regulating valve for adjusting the cold air delivery pressure is installed on the air inlet pipe, and the cold air connecting pipe is connected to a cold air cooling pipe. Preferably, the cold air connecting pipe connects two spaced-apart cold air cooling pipes via a cooling tee; Preferably, some of the cold air cooling pipes are located inside the rotary screen housing and have multiple air outlets evenly distributed on the side facing the screen. Preferably, there are 2-10 air outlets, and the diameter of the air outlets is 1-6mm. A grinding production line includes a grinding mill, the discharge port of the grinding mill is connected to a separator via a pipe, a fan is installed below the separator, a rotary screen is installed at the output end of the fan, a dust collector is installed above the separator via a pipe, and a fan is installed at the other end of the dust collector via a pipe. The line is characterized by further including a grinding cooling mechanism for cooling the grinding mill and the rotary screen. Preferably, the grinding cooling mechanism includes an industrial air cooler for cooling the grinding mill and an exhaust valve located on the upper end of the rotary screen housing. The output end of the industrial air cooler is provided with a cold air inlet pipe, the other end of which is connected to the grinding mill. A cold air inlet pipe is connected to the cold air inlet pipe, and the output end of the cold air inlet pipe is connected to an air inlet pipe and a cold air connecting pipe via an air inlet tee. A pressure regulating valve for adjusting the cold air delivery pressure is installed on the air inlet pipe, and a cold air connecting pipe is connected to a cold air cooling pipe. A portion of the cold air cooling pipe is located in the rotary screen housing. Preferably, the rotary screen includes a rotary screen housing, one end of which is equipped with a motor. From the inside to the outside, a feeding auger and a forced rotating scraper are installed on the output shaft of the motor. The forced rotating scraper is located inside the rotary screen housing, the feeding auger is located at the rotary screen inlet, a screen is provided on the outside of the forced rotating scraper, and the cold air cooling pipe is located above the forced rotating scraper. Preferably, the cold air connecting pipe connects two spaced-apart cold air cooling pipes via a cooling tee; Preferably, the cold air cooling pipe is located inside the rotary screen housing and has multiple air outlets evenly distributed on the side facing the screen. Preferably, there are 2-10 air outlets, and the diameter of the air outlets is 1-6mm.

[0005] The grinding cooling mechanism and grinding production line composed of this invention can simultaneously cool the inside of the grinding mill and the rotary screen. The grinding cooling mechanism can cool the finished powder, which can be directly packaged without the need for further cooling, thus improving production efficiency and reducing production costs. Attached Figure Description

[0006] Figure 1 This is a schematic diagram of the existing technology; Figure 2 This is a schematic diagram of the structure of Embodiment 1 of the present utility model; Figure 3 for Figure 2 Enlarged view of the intercooler air cooling pipe located in the rotary screen; Figure 4 Schematic diagram of cold air cooling pipe installation; Figure 5 This is a structural schematic diagram of Embodiment 2 of the present invention.

[0007] In the diagram: 1. Rotary screen housing, 2. Cold air cooling pipe, 3. Exhaust valve, 4. Air inlet tee, 5. Pressure regulating valve, 6. Air inlet pipe, 7. Cold air inlet pipe, 8. Industrial air cooler, 9. Cold air inlet pipe, 10. Grinding mill, 11. Shut-off fan, 12. Separator, 13. Forced rotating scraper, 14. Screen, 15. Dust collector, 16. Fan, 17. Cold air connection pipe, 18. Cooling tee, 19. Air outlet. Detailed Implementation

[0008] The following detailed embodiments of the present invention are given with reference to the accompanying drawings, which are used to further illustrate the structure of the present invention.

[0009] Example 1. As... Figure 2-4 The grinding cooling mechanism shown includes an industrial air cooler 8 for cooling the grinding mill 10 and an exhaust valve 3 installed on the upper end of the rotary screen housing 1. The output end of the industrial air cooler 8 is provided with a cold air inlet pipe 9. The other end of the cold air inlet pipe 9 is connected to the grinding mill 10. A cold air inlet pipe 7 is connected to the cold air inlet pipe 9. The output end of the cold air inlet pipe 7 is connected to an air inlet pipe 6 and a cold air connecting pipe 17 through an air inlet tee 4. A pressure regulating valve 5 for adjusting the cold air delivery pressure is installed on the air inlet pipe 6. The cold air connecting pipe is connected to a cold air cooling pipe 2. The cold air connecting pipe 17 is connected to two cold air cooling pipes 2 that are spaced apart by a cooling tee 18. Among them, some of the cold air cooling pipes 2 are located inside the rotating screen housing 1 and have multiple air outlets 19 evenly distributed on the side facing the screen 14. The air outlet has 2-10 outlets, and the diameter of the air outlet is 1-6mm.

[0010] The grinding and cooling mechanism in this embodiment can simultaneously cool the inside of the grinding mill 10 and the rotating screen. The finished powder can be cooled by the grinding and cooling mechanism, and the cooled finished powder can be directly packaged without the need for cooling and waiting, which improves production efficiency and reduces production costs.

[0011] Example 2. (As shown) Figure 5 The grinding production line shown includes a grinding mill 10, a separator 12 connected to the discharge port of the grinding mill 10 via a pipe, a fan 11 installed below the separator 12, a rotary screen installed at the output end of the fan 11, a dust collection box 15 installed above the separator 12 via a pipe, a fan 16 installed at the other end of the dust collection box 15 via a pipe, and a grinding cooling mechanism for cooling the grinding mill 10 and the rotary screen. The grinding cooling mechanism includes an industrial air cooler 8 for cooling the grinding mill 10 and an exhaust valve 3 located on the upper end of the rotary screen housing 1. The output end of the industrial air cooler 8 is provided with a cold air inlet pipe 9. The other end of the cold air inlet pipe 9 is connected to the grinding mill 10. A cold air inlet pipe 7 is connected to the cold air inlet pipe 9. The output end of the cold air inlet pipe 7 is connected to an air inlet pipe 6 and a cold air connecting pipe 17 through an air inlet tee 4. A pressure regulating valve 5 for adjusting the cold air delivery pressure is installed on the air inlet pipe 6. A portion of the cold air cooling pipe 2 is located in the rotary screen housing 1. The cold air connecting pipe 17 is connected to two spaced-apart cold air cooling pipes 2 via a cooling tee 18; the rotating screen includes a rotating screen housing 1, one end of which is equipped with a motor, and the output shaft of the motor is equipped with a feeding auger and a forced rotating scraper 13 from the inside to the outside. The forced rotating scraper 13 is located inside the rotating screen housing 1, the feeding auger is located at the rotating screen inlet, a screen 14 is provided on the outside of the forced rotating scraper 13, and the cold air cooling pipes 2 are located above the forced rotating scraper 13; The cold air cooling pipe 2 is located inside the rotating screen housing 1 and has multiple air outlets 19 evenly distributed on the side facing the screen 14. The air outlet has 2-10 outlets, and the diameter of the outlet is 1-6mm. In this embodiment, the diameter of the outlet tube is 22mm, and each outlet tube has 6 outlets, and the diameter of the outlet is 3mm.

[0012] In this embodiment of the grinding production line, the rotary screen is installed below the airlock 11. The cold air from the industrial air cooler 8 enters the grinding mill 10 through the cold air inlet pipe 9 for cooling. At the same time, the cold air from the industrial air cooler 8 enters the air-cooled inlet pipe 7 through the cold air inlet pipe 9, and then enters the air inlet tee 4. The pressure is adjusted by the pressure regulating valve 5 through the air inlet pipe 6 to deliver the cold air to the cold air cooling pipe 2. The part of the cold air cooling pipe 2 located in the rotary screen introduces cold air into the rotary screen housing 1 through the air outlet. The cold air cools the inside of the rotary screen. In order to make the rotary screen housing 1 a pressureless container, the exhaust valve 3 at the top of the rotary screen housing 1 is opened to expel the gas inside the rotary screen housing. By cooling the rotary screen housing 1, the finished powder can be cooled. After the temperature of the finished powder drops, it can be packaged directly without waiting, which can ensure the normal operation of the subsequent packaging production line, improve work efficiency, and reduce production costs.

[0013] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable way without contradiction. In order to avoid unnecessary repetition, this utility model will not describe the various possible combinations separately.

[0014] Furthermore, various different embodiments of this utility model can be combined in any way, as long as they do not violate the spirit of this utility model, they should also be regarded as the content disclosed by this utility model.

Claims

1. A grinding mill cooling mechanism, characterized in that: The equipment includes an industrial air cooler (8) for cooling the mill (10) and an exhaust valve (3) installed on the upper end of the rotating screen housing (1). The output end of the industrial air cooler (8) is provided with a cold air inlet pipe (9). The other end of the cold air inlet pipe (9) is connected to the mill (10). A cold air inlet pipe (7) is connected to the cold air inlet pipe (9). The output end of the cold air inlet pipe (7) is connected to an air inlet pipe (6) and a cold air connecting pipe (17) through an air inlet tee (4). A pressure regulating valve (5) for adjusting the cold air delivery pressure is installed on the air inlet pipe (6). A cold air connecting pipe is connected to a cold air cooling pipe (2).

2. The grinding cooling mechanism according to claim 1, characterized in that: The cold air connecting pipe (17) is connected to two cold air cooling pipes (2) that are spaced apart by a cooling tee (18).

3. A grinding cooling mechanism according to claim 1 or 2, characterized in that: The cold air cooling pipe (2) is located inside the rotating screen housing (1) and has multiple air outlets (19) evenly distributed on the side facing the screen (14).

4. The grinding cooling mechanism according to claim 3, characterized in that: The air outlet (19) has 2-10 outlets, and the diameter of the air outlet is 1-6mm.

5. A grinding production line, comprising a grinding mill (10), wherein a separator (12) is connected to the discharge port of the grinding mill (10) via a pipe, a fan (11) is installed below the separator (12), a rotary screen is installed at the output end of the fan (11), a dust collector (15) is installed above the separator (12) via a pipe, and a fan (16) is installed at the other end of the dust collector (15) via a pipe, characterized in that: It also includes a grinding cooling mechanism for cooling the grinding mill (10) and the rotary screen.

6. A grinding production line according to claim 5, characterized in that: The grinding cooling mechanism includes an industrial air cooler (8) for cooling the grinding mill (10) and an exhaust valve (3) located at the upper end of the rotating screen housing (1). The output end of the industrial air cooler (8) is provided with a cold air inlet pipe (9). The other end of the cold air inlet pipe (9) is connected to the grinding mill (10). A cold air inlet pipe (7) is connected to the cold air inlet pipe (9). The output end of the cold air inlet pipe (7) is connected to an air inlet pipe (6) and a cold air connecting pipe (17) through an air inlet tee (4). A pressure regulating valve (5) for adjusting the cold air delivery pressure is installed on the air inlet pipe (6). A cold air connecting pipe (17) is connected to a cold air cooling pipe (2). A part of the cold air cooling pipe (2) is located in the rotating screen housing (1).

7. A grinding production line according to claim 6, characterized in that: The rotating screen includes a rotating screen housing (1), one end of which is equipped with a motor. From the inside to the outside, a feeding auger and a forced rotating scraper (13) are installed on the output shaft of the motor. The forced rotating scraper (13) is located inside the rotating screen housing (1), the feeding auger is located at the rotating screen inlet, a screen (14) is provided on the outside of the forced rotating scraper (13), and the cold air cooling pipe (2) is located above the forced rotating scraper (13).

8. A grinding production line according to claim 7, characterized in that: The cold air connecting pipe (17) is connected to two cold air cooling pipes (2) that are spaced apart by a cooling tee (18).

9. A grinding production line according to claim 8, characterized in that: The cold air cooling pipe (2) is located inside the rotating screen housing (1) and has multiple air outlets (19) evenly distributed on the side facing the screen (14).

10. A grinding production line according to claim 9, characterized in that: The air outlet (19) has 2-10 outlets, and the diameter of the air outlet is 1-6mm.

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