Air inducing device of flour mill

Abstract

The utility model discloses an induced draft device of a flour mill, which comprises a feeding machine, the flour mill, an air cooler and an induced draft fan, the flour mill is communicated with the induced draft fan, the induced draft device further comprises a feeding pipeline and a first cold air pipe, one end of the feeding pipeline is communicated with the feeding machine, and the other end of the feeding pipeline is communicated with the first cold air pipe. The other end of the feeding pipeline obliquely extends upwards and is communicated with a feeding hole of the flour mill, and one end, communicated with the feeding machine, of the feeding pipeline is a feeding end; one end of the first cold air pipe is communicated with the air cooler, and the other end of the first cold air pipe is communicated with the feeding end. According to the utility model, the problem of low production efficiency of dust coating caused by easy blockage of the feeding pipeline of the existing flour mill can be solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of powder coating production equipment, and particularly relates to an air induction device for a grinding mill. Background Art

[0002] Powder coating is a special type of coating. When low molecular weight materials are heated, they cross-link into a cross-linked coating of high molecular polymers that no longer melts. The block or flake coating is ground into powder by physical crushing.

[0003] In the production of powder coatings, a feeding pipe is provided between the feeding port and the grinding mill. Since the existing feeding pipe is a straight pipe or a 90° two-way pipe, when the feeding speed of the feeding port is too fast or the induced draft fan's induced wind force is insufficient, the feeding pipe is easily blocked and the induced draft fan cannot absorb the coating through negative pressure. Workers are required to dismantle the feeding pipe for unblocking. The unblocking process makes it impossible to grind and produce dusty coatings, thereby reducing the production efficiency and powder output quality of powder coatings. Utility Model Content

[0004] The utility model aims to provide a grinding mill air induction device to solve the technical problem that the feeding pipeline of the existing grinding mill is easily blocked, resulting in low production efficiency of dust coating.

[0005] The technical solutions adopted to solve the above technical problems are:

[0006] The utility model discloses a mill air induced device, comprising a feeder, a mill, a cooling fan and an induced draft fan, wherein the mill and the induced draft fan are connected, and further comprising:

[0007] A feeding pipe, one end of which is connected to the feeding machine, and the other end of which extends upwardly and is connected to the feeding port of the grinding mill, and the end of the feeding pipe connected to the feeding machine is the feeding end;

[0008] A first cold air duct, wherein one end of the first cold air duct is connected to the cold air machine, and the other end of the first cold air duct is connected to the feed end.

[0009] The utility model has at least the following beneficial effects: the grinding mill and the induced draft fan are connected, and the opposite ends of the feeding pipe are respectively connected to the grinding mill and the feeding machine. The induced draft fan is used to provide negative pressure for the grinding mill and the feeding pipe connected to the grinding mill. When the feeder transports paint to the feeding pipe, the negative pressure air provided by the induced draft fan can drive the paint to be transported along the feeding pipe to the grinding mill, thereby realizing powder processing of the paint.

[0010] The feeding pipe is arranged at an angle so that after the paint enters the feeding pipe from the feeder, it can be transported to the grinding mill more simply and directly under the action of negative pressure air.

[0011] The opposite ends of the first cold air duct are respectively connected to the cold air fan and the feed end to transport the cold air produced by the cold air fan to the feeding pipe. When the feeding speed of the feeder is too fast or the wind force of the induced draft fan is insufficient, the induced draft fan can obtain the air used to form a negative pressure through the first cold air duct connected to the feeding pipe, thereby avoiding blockage of the feeding pipe by the paint, requiring the removal of the grinding mill induced draft device and the unblocking of the feeding pipe, which leads to long production and processing time and low production efficiency of powder coatings.

[0012] As a further improvement of the above technical solution, the inclination angle of the feeding pipe relative to the horizontal plane is 45 degrees.

[0013] Through the above arrangement, the feeding pipe inclined at 45 degrees can smoothly convey the paint to the grinding mill, without making the paint conveying path too steep, which would increase the working power of the induced draft fan; nor will it make the paint conveying path too flat, which would cause the feeding pipe to be too long and increase the occupied area required by the induced draft device of the grinding mill.

[0014] As a further improvement of the above technical solution, the feeder includes a shell and a conveying assembly, the shell is provided with a feeding port and a discharging port, the discharging port is connected to the feeding end, and the conveying assembly is configured so that the output end of the conveying assembly can evenly convey the paint from the feeding port to the discharging port.

[0015] Through the above arrangement, the paint entering the feeder from the feeding port can be evenly conveyed by the conveying component to the feeding end of the feeding pipe, thereby preventing the feeder from feeding too fast.

[0016] As a further improvement of the above technical solution, the conveying assembly includes a feeding motor and a feeding screw, the output end of the feeding motor is transmission-connected to the feeding screw, and the feeding screw is rotatably mounted between the feeding port and the discharge port.

[0017] Through the above arrangement, the output end of the feeding motor can drive the feeding screw to rotate relative to the shell, the paint entering from the feeding port falls onto the feeding screw, and the rotating feeding screw drives the paint to move to the discharge port, completing the uniform transportation of the paint.

[0018] As a further improvement of the above technical solution, the feeding screw is laid in the horizontal direction, and the discharge port and the feed end are horizontally connected.

[0019] Through the above arrangement, the horizontally laid feeding screw can make the coating conveying more stable and steady, and the discharge port and the feed end are horizontally connected so that the coating is conveyed into the feeding channel in the horizontal direction.

[0020] As a further improvement of the above technical solution, the connection position between the first cold air duct and the feed end is lower than the connection position between the feeder and the feed end.

[0021] Through the above arrangement, when the feeding speed of the feeder is too fast or the wind force of the induced draft fan is insufficient, the paint output from the feeder can directly enter the first cold air duct through the feed end, avoiding the paint being blocked between the feed end and the feeder.

[0022] As a further improvement of the above technical solution, one end of the first cold air pipe connected to the feed end is a U-shaped pipe.

[0023] Through the above arrangement, the first cold air duct of the U-shaped tube can be easily connected to the feeding pipe at a connection position lower than the connection position between the feeding pipe and the feeding machine.

[0024] As a further improvement of the above technical solution, the air outlet of the cold air fan is connected to a main cold air duct, the main cold air duct is divided into the first cold air duct and the second cold air duct, and the second cold air duct is connected to the air inlet of the grinding mill.

[0025] Through the above arrangement, the cold air produced by the cold air blower is divided into the first cold air duct and the second cold air duct through the main cold air duct, and the cold air flowing to the second cold air duct is used to cool the mill to prevent the paint from agglomerating or melting in the mill.

[0026] As a further improvement of the above technical solution, the grinding mill air induced device further includes an air induced duct, and opposite ends of the air induced duct are respectively connected to the grinding mill and the air induced fan.

[0027] Through the above arrangement, the mill and the induced draft fan are connected through the induced draft duct, so that the negative pressure of the mill and the feeding duct facilitates the paint to be sucked into the mill by the negative pressure.

[0028] As a further improvement of the above technical solution, the grinding mill induced draft device includes a support platform, and the grinding mill, the induced draft fan and the cooling fan are all mounted on the support platform.

[0029] Through the above arrangement, the support platform raises the installation position of the grinding mill, induced draft fan and air cooler, preventing the grinding mill, induced draft fan and air cooler from vibrating and transmitting through the ground in working state, reducing noise, and improving the waterproof function of the grinding mill, induced draft fan and air cooler to avoid water damage to the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0031] Figure 1 It is a schematic diagram of the overall structure of the air induction device of the grinding mill provided by the embodiment of the utility model;

[0032] Figure 2 It is a top view of the air induction device of the grinding mill provided by the embodiment of the utility model;

[0033] Figure 3 It is a structural schematic diagram of a feeder provided by an embodiment of the utility model.

[0034] The following are marked in the accompanying drawings:

[0035] 100. Mill induced draft device;

[0036] 200, feeder; 210, housing; 211, feed port; 212, discharge port; 220, conveying assembly; 221, feed motor; 222, feed screw;

[0037] 300. Mill;

[0038] 400, air cooler;

[0039] 500, induced draft fan; 510, induced draft duct;

[0040] 600, feeding pipe;

[0041] 700, main cold air duct; 710, first cold air duct; 711, U-shaped duct; 720, second cold air duct;

[0042] 800. Support table. DETAILED DESCRIPTION

[0043] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0044] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0045] In the description of the utility model, if there is a word description such as "several", it means one or more, and the meaning of "more" is two or more. Greater than, less than, and more than are understood to exclude the number itself, and above, below, and within are understood to include the number itself. If there is a description of the first, second, and third, it is only used to distinguish the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0046] It should be noted that in the accompanying drawings, the X direction is from the rear side of the mill air induced device to the front side; the Y direction is from the left side of the mill air induced device to the right side; and the Z direction is from the bottom side of the mill air induced device to the top side.

[0047] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0048] Reference Figures 1 to 3 , several embodiments of the mill air induction device of the utility model are given below.

[0049] like Figures 1 to 3 As shown, the mill induced draft device 100 of the embodiment of the utility model includes a feeder 200, a mill 300, a cooling fan 400 and an induced draft fan 500. The feeder 200 is connected to the mill 300, and the feeder 200 is used to uniformly provide the paint to be ground to the mill 300; the mill 300 is used to crush and grind the paint so that the block or sheet paint produced is processed into powdered paint; the cooling fan 400 is used to cool the air into cold air; the induced draft fan 500 is connected to the mill 300, and is used to provide negative pressure to the mill 300 and the connecting channel between the mill 300 and the feeder 200, so that the paint can be brought into the mill 300 through the negative pressure air.

[0050] It is understood that the connection channel between the feeder 200 and the grinding mill 300 is a feeding pipe 600. Figure 1 and Figure 2 As shown, the two opposite ends of the feeding pipe 600 are respectively connected to the feed ports of the feeder 200 and the grinding mill 300, and one end of the feeding pipe 600 connected to the grinding mill 300 is tilted upward and extended. When the induced draft fan 500 is started, the negative pressure can make the paint coming out of the feeder 200 directly transported from bottom to top along the feeding pipe 600 to the grinding mill 300, thereby realizing the transportation of the paint.

[0051] It can be understood that the air cooler 400 is connected to the feeding pipe 600. Specifically, the connecting channel between the air cooler 400 and the feeding pipe 600 is the first air cooler pipe 710, that is, the opposite ends of the first air cooler pipe 710 are respectively connected to the air cooler 400 and the feeding pipe 600, and the connecting end of the feeding pipe 600 and the feeder 200 is the feeding end. The connection between the first air cooler pipe 710 and the feeding pipe 600 is actually the connection between the first air cooler pipe 710 and the feeding end. Figure 1 and Figure 2 shown.

[0052] It is understandable that the conventional grinding mill 300 is directly connected to the feeder 200. When the feeding speed of the feeder 200 is too fast or the wind force of the induced draft fan 500 is insufficient, the paint is easily blocked at the connection between the feeding pipe 600 and the feeder 200. At this time, the induced draft fan 500 cannot obtain air through the feeding pipe 600 and the feeder 200, and it is difficult to form negative pressure air to transport the paint, which can easily cause malfunction and damage to the feeder 200, the grinding mill 300 and the induced draft fan 500.

[0053] In this embodiment, the cold air fan 400 can transport air to the feeding pipe 600 through the first cold air duct 710, ensuring that there is sufficient and flowing air in the feeding pipe 600, and ensuring that the induced draft fan 500 can form negative pressure air. The negative pressure air draws the paint into the grinding mill 300 to be ground, thereby avoiding the situation where the feeding pipe 600 of the grinding mill induced draft device 100 is blocked.

[0054] Moreover, compared with the conventional 90-degree right-angle two-way pipe, the inclined feeding pipe 600 can reduce the circulation loss of the negative pressure air of the induced draft fan 500 in the feeding pipe 600, thereby avoiding increasing the working power of the induced draft fan 500.

[0055] In this embodiment, the inclination angle of the feeding pipe 600 is 45 degrees, that is, the angles between the feeding pipe 600 and the horizontal plane and the vertical plane are both 45 degrees, so that the coating can be steadily and smoothly transported to the grinding mill 300.

[0056] It is understood that the feeder 200 includes a housing 210 and a conveying assembly 220. Figure 2 Specifically, the housing 210 is provided with a feeding port 211 for adding the paint into the housing 210; the housing 210 is also provided with a discharge port 212 for discharging the paint. Figure 3 As shown, the discharge port 212 is connected to the feed end of the feeding pipe 600 so that the paint leaving the discharge port 212 can directly reach the feeding pipe 600. The conveying assembly 220 is arranged between the feeding port 211 and the discharge port 212 to evenly convey the paint entering the housing 210 from the feeding port 211 to the discharge port 212, thereby reducing the possibility of paint being blocked in the feeding pipe 600 or the feeder 200.

[0057] In this embodiment, the housing 210 is shaped like a hopper with a large upper end and a small lower end, and the feeding port 211 is arranged at the top of the housing 210, so that the staff can directly add paint from top to bottom to the feeding port 211. The discharge port 212 is arranged on the side of the housing 210, so that the paint can be transported to the feeding pipe 600 through the conveying component 220.

[0058] It is understood that the conveying assembly 220 includes a feeding motor 221 and a feeding screw 222 that are transmission-connected. Figure 2 and Figure 3 Specifically, the output end of the feeding motor 221 is connected to the feeding screw 222, and the feeding screw 222 is rotatably mounted at opposite ends of the housing 210. The feeding port 211 is opposite to the feeding screw 222 in vertical direction and is located above the feeding screw 222. One end of the feeding screw 222 is rotatably penetrated into the discharge port 212. The feeding screw 222 is provided with a feeding thread for pushing the paint. When the paint enters the housing 210 from the feeding port 211, a plurality of paints are respectively stuck between two adjacent circles of the feeding thread of the feeding screw 222. When the feeding motor 221 is started, the output end of the feeding motor 221 drives the feeding screw 222 to rotate, so that the paint stuck between the two feeding threads is transported to the discharge port 212, so that the paint is evenly transported to the feeding pipe 600.

[0059] In this embodiment, the feeding screw 222 extends in the horizontal direction and rotates to be laid on opposite sides of the shell 210. One end of the feeding screw 222 passes through the outside of the shell 210 and is connected to the output end of the feeding motor 221. The discharge port 212 of the shell 210 is connected to the feed end of the feeding pipe 600 in the horizontal direction, so that the paint entering the shell 210 is horizontally conveyed to the feeding pipe 600 through the conveying component 220, making the conveying of the paint smoother.

[0060] It is understandable that the connection position between the first cold air duct 710 and the feeding pipe 600 is lower than the connection position between the feeder 200 and the feeding pipe 600. Figure 1 As shown, when the feeding speed of the feeder 200 is too fast or the wind force of the induced draft fan 500 is insufficient, the excessive paint entering the feeding pipe 600 can directly fall on the first cold air pipe 710, further preventing the paint from clogging the feeding pipe 600. Since the feeder 200 and the feeding end are connected horizontally, the connection position of the first cold air pipe 710 and the feeding end is angled relative to the connection position of the feeder 200 and the feeding end and is arranged downward.

[0061] In this embodiment, one end of the first cold air pipe 710 is a U-shaped pipe 711. Figure 1As shown, the other end of the U-shaped tube 711 is connected to the feed end. When the feeding speed of the feed end is too fast, the paint output from the discharge port 212 can directly fall into the U-shaped tube 711 to avoid blocking the connection between the first cold air duct 710 and the feed end.

[0062] It is understandable that the air cooler 400 is also connected to the grinding mill 300 to input cold air into the grinding mill 300 to prevent the temperature of the grinding mill 300 from rising during the grinding process and the paint from agglomerating or melting in the grinding mill 300. Specifically, the air outlet of the air cooler 400 is connected to one end of the main cold air duct 700, and the other end of the main cold air duct 700 is simultaneously connected to the first cold air duct 710 and the second cold air duct 720 to respectively divert the generated cold air to the first cold air duct 710 and the second cold air duct 720, and the second cold air duct 720 is connected to the air inlet of the grinding mill 300 to input cold air into the grinding mill 300 to cool down the grinding mill 300 in a working state. Figure 1 and Figure 2 shown.

[0063] It is understandable that the connection channel between the induced draft fan 500 and the grinding mill 300 is an induced draft duct 510. Figure 1 and Figure 2 As shown, one end of the induced air duct 510 is connected to the air inlet end of the induced air fan 500, and the other end of the induced air duct 510 is connected to the air outlet of the grinding mill 300, so as to suck the paint in the feeding pipe 600 into the grinding mill 300 under negative pressure.

[0064] It is understandable that the mill air induction device 100 also includes a support platform 800. Figure 1 and Figure 2 As shown, the grinding mill 300 is mounted on a support platform 800, which is used to elevate the grinding mill 300. The grinding mill 300 can reduce the noise generated by vibration during operation by using elastic pads, shock absorbers, etc., and can prevent the noise from being transmitted through the ground. The grinding mill 300 on the support platform 800 can also be waterproof to reduce equipment damage.

[0065] Furthermore, the induced draft fan 500 and the cooling fan 400 may also be disposed on the support platform 800 to facilitate communication with the grinding mill 300 .

[0066] The preferred implementation methods of the utility model are described in detail above, but the invention of the utility model is not limited to the described embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the utility model. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A mill induced draft device, comprising a feeder, a mill, a cooling fan and an induced draft fan, wherein the mill and the induced draft fan are connected, characterized in that: Also included are: A feeding pipe, one end of which is connected to the feeding machine, and the other end of which extends upwardly and is connected to the feeding port of the grinding mill, and the end of the feeding pipe connected to the feeding machine is the feeding end; A first cold air duct, wherein one end of the first cold air duct is connected to the cold air machine, and the other end of the first cold air duct is connected to the feed end.

2. The mill air induction device according to claim 1, characterized in that: The feeding pipe has an inclination angle of 45 degrees relative to the horizontal plane.

3. The mill air induction device according to claim 1, characterized in that: The feeder includes a shell and a conveying component, the shell is provided with a feeding port and a discharging port, the discharging port is connected to the feeding end, and the conveying component is configured so that the output end of the conveying component can evenly convey the coating from the feeding port to the discharging port.

4. The mill air induction device according to claim 3, characterized in that: The conveying assembly includes a feeding motor and a feeding screw. The output end of the feeding motor is drivingly connected to the feeding screw. The feeding screw is rotatably mounted between the feeding port and the discharge port.

5. The mill air induction device according to claim 4, characterized in that: The feeding screw is laid in the horizontal direction, and the discharge port is horizontally connected with the feeding end.

6. The mill air induction device according to claim 1, characterized in that: The connection position between the first cold air duct and the feed end is lower than the connection position between the feeder and the feed end.

7. The mill air induction device according to claim 6, characterized in that: One end of the first cold air pipe connected to the feed end is a U-shaped pipe.

8. The mill air induction device according to claim 1, characterized in that: The air outlet of the cold air blower is connected to a main cold air duct, the main cold air duct is divided into the first cold air duct and the second cold air duct, and the second cold air duct is connected to the air inlet of the grinding mill.

9. The mill air induction device according to claim 1, characterized in that: It also includes an induced draft duct, and the opposite ends of the induced draft duct are respectively connected to the grinding mill and the induced draft fan.

10. The mill air induction device according to claim 1, characterized in that: A support platform is included, and the grinding machine, the induced draft fan and the cooling fan are all mounted on the support platform.

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