Deslagging mechanism of flour mill

Abstract

The utility model provides a deslagging mechanism of a flour mill, which comprises a main machine volute, a deslagging cavity is arranged on the outer side wall of the main machine volute, a deslagging port communicated with the main machine volute and the deslagging cavity is arranged on the side wall of the main machine volute, and an opening adjusting mechanism is arranged at the deslagging port. A deslagging pipeline is arranged at the bottom of the deslagging cavity, and the deslagging cavity is communicated with the collecting box through the deslagging pipeline. The deslagging cavity is arranged on the outer side of the main machine volute, and the deslagging port communicated with the deslagging cavity and the main machine volute is arranged, so that slag particles difficult to grind can conveniently enter the deslagging cavity from the deslagging port in the grinding process, the slag particles difficult to grind can be discharged, and the influence caused by accumulation in the main machine volute is avoided; the device has the advantages of simple structure and convenience in use.

Description

Technical Field

[0001] The utility model relates to the field of flour mills, and particularly relates to a slag discharging mechanism of a flour mill. Background Art

[0002] Flour mills such as Raymond mills or hanging roller mills, etc. A set of flour mill systems usually includes a fan, a cyclone dust collector, a connecting air duct, etc. In addition, currently most flour mills usually need to be used in cooperation with a powder analyzer during the operation process. The fan is connected to the bottom of the main machine volute of the flour mill, and the top of the main machine volute is connected to the cyclone dust collector through an air duct for collecting and discharging the finished product. That is, the pulverized powder in the main machine volute flies upward under the action of the fan, and after passing through the powder analyzer at the top of the main machine volute of the flour mill, powdery finished products of different fineness are separated out, and the unqualified powder will return to the main machine volute of the flour mill for re-grinding.

[0003] During the working process of the flour mill, when the material contains impurities with a higher degree of hardness than the material itself, if the impurities are not discharged in time, they will accumulate and increase inside the main machine cavity of the mill, occupying the internal space of the main machine, causing the mill to vibrate, reduce production, the vulnerable parts inside the main machine to wear quickly, and the production capacity and the quality of the finished product to decline. Summary of the Invention

[0004] In order to solve the problems existing in the background art, the utility model provides a slag discharging mechanism of a flour mill.

[0005] A slag discharging mechanism of a flour mill includes a main machine volute, a slag discharging cavity is arranged on the outer side wall of the main machine volute, a slag discharging port communicating the main machine volute and the slag discharging cavity is arranged on the side wall of the main machine volute, and an opening degree adjusting mechanism is arranged at the slag discharging port; a slag discharging pipe is arranged at the bottom of the slag discharging cavity, and the slag discharging cavity is communicated with a collection box through the slag discharging pipe.

[0006] Based on the above, it includes an exhaust fan, an exhaust duct is arranged at the top of the slag discharging cavity, and the slag discharging cavity is communicated with the exhaust fan through the exhaust duct.

[0007] Based on the above, the opening degree adjusting mechanism includes an adjusting plate corresponding to the slag discharging port, two strip-shaped limiting holes are vertically and parallelly arranged on the adjusting plate, threaded holes corresponding to the limiting holes are arranged on the side wall of the main machine volute, and limiting bolts are correspondingly arranged in the threaded holes.

[0008] Based on the above, the slag discharging port is a horizontally long strip-shaped slag discharging port.

[0009] Based on the above, an inspection opening is arranged on one side of the slag discharging cavity, and an inspection door is hinged at the inspection opening.

[0010] The utility model has substantial features and progress compared with the prior art. Specifically, by arranging a slag discharge cavity outside the main machine volute and providing a slag discharge port connecting the slag discharge cavity and the main machine volute, it is convenient for the difficult-to-grind slag particles to enter the slag discharge cavity from the slag discharge port during the grinding process, so as to discharge the difficult-to-grind slag and avoid accumulation in the main machine volute, which has the advantages of simple structure and convenient use. Brief Description of the Drawings

[0011] Figure 1 is a schematic structural diagram of the utility model.

[0012] Figure 2 is a schematic structural diagram inside the slag discharge cavity of the utility model.

[0013] Description of the reference numerals: 1. Exhaust duct; 2. Slag discharge cavity; 3. Slag discharge pipe; 4. Adjusting plate; 5. Main machine volute; 6. Handle part; 7. Limit hole; 8. Slag discharge port; 9. Limit bolt. Detailed Description of the Preferred Embodiment

[0014] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0015] As Figure 1 - Figure 2 shown, a slag discharge mechanism of a grinding machine includes a main machine volute 5, a slag discharge cavity 2 is arranged on the outer side wall of the main machine volute 5, a slag discharge port 8 connecting the main machine volute 5 and the slag discharge cavity 2 is arranged on the side wall of the main machine volute 5, and an opening degree adjusting mechanism is arranged at the slag discharge port 8; a slag discharge pipe 3 is arranged at the bottom of the slag discharge cavity 2, and the slag discharge cavity 2 is connected to a collection box through the slag discharge pipe 3.

[0016] During use, the slag-containing material enters the main machine volute 5 for grinding. The easy-to-grind material is ground into powder in a short time and is carried away by the air flow of the fan of the grinding system. After being screened by the powder analyzer, it enters the cyclone dust collector for collection and discharge of the finished product. The unqualified material particles are knocked down by the powder analyzer and fall into the main machine volute 5 for continuous grinding. The unqualified material contains difficult-to-grind slag particles. The slag particles are driven by the rotating components in the main machine of the mill and are thrown towards the wall of the main machine volute 5 under the action of centrifugal force. After the slag particles are thrown towards the volute wall, they swirl in the main machine volute 5 with the air flow and have a probability of entering the slag discharge cavity 2, and then fall into the slag discharge pipe 3 by their own weight, so as to be discharged outside the mill. In reality, the discharged slag material will also contain some normal materials. After accumulating in the collection box, it will be screened, recycled, etc.

[0017] The opening adjustment mechanism includes an adjustment plate 4 corresponding to the slag discharge port 8. Two strip-shaped limiting holes 7 are vertically and parallelly arranged on the adjustment plate 4 respectively. Threaded holes are correspondingly arranged on the side wall of the main machine volute 5 corresponding to the limiting holes 7, and limiting bolts 9 are correspondingly arranged in the threaded holes. A handle member 6 is arranged at the top of the adjustment plate 4. After loosening the limiting bolts 9, the adjustment plate 4 can be manually moved up and down through the handle member 6 to make the adjustment plate 4 move relative to the main machine volute 5, so as to adjust the opening degree of the slag discharge port 8. After adjusting to the target size, the limiting bolts 9 are tightened again, and the adjustment plate 4 can be pressed against the side wall of the main machine volute 5 through the bolts. In reality, according to the types of materials for grinding, the position of the adjustment plate 4 is adjusted to change the size of the slag discharge port 8 to achieve the best slag discharge effect. In this embodiment, the slag discharge port 8 is a horizontally long strip-shaped slag discharge port 8, which is convenient for slag particles to enter the slag discharge cavity 2.

[0018] Preferably, an exhaust duct 1 is arranged at the top of the slag discharge cavity 2, and the slag discharge cavity 2 is communicated with an exhaust fan through the exhaust duct 1. In the Raymond mill circulation system, the inside of the main machine volute 5 is generally under positive air pressure, that is, the fan of the grinding system blows upward. To avoid the problem that the dust-containing air flow in the mill sprays out from the slag discharge pipe 3 and pollutes the working environment. An exhaust duct 1 is arranged at the top of the slag discharge cavity 2. The exhaust fan is actually the fan of the grinding system, that is, the exhaust duct 1 is connected to the air inlet of the fan of the grinding system. Through the suction of the fan, the inside of the slag discharge cavity 2 can be in a negative pressure state, and at the same time, the dust-containing air flow enters the main machine volute 5 for circulation, so as to ensure that the dust-containing air flow in the main machine of the mill will not overflow from the slag discharge pipe 3.

[0019] In reality, an inspection opening is arranged on one side of the slag discharge cavity 2, and an inspection door is hinged at the inspection opening. The adjustment plate 4 can be manually adjusted by opening the inspection door. In reality, a rubber strip is arranged at the inspection opening corresponding to the inspection door. When the inspection door is closed, the rubber strip is squeezed to realize the sealing of the slag discharge cavity 2 and prevent dust from leaking. A pin and a pin hole are correspondingly arranged on the inspection door and the outer wall of the slag discharge cavity 2 for locking the closed inspection door. It is a common pin insertion locking part and will not be elaborated here.

[0020] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, in any aspect, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. A slag discharge mechanism of a grinding mill, comprising a main engine volute, characterized in that: A slag discharge cavity is arranged on the outer side wall of the main engine volute, a slag discharge port connecting the main engine volute and the slag discharge cavity is arranged on the side wall of the main engine volute, and an opening adjustment mechanism is arranged at the slag discharge port; a slag discharge pipe is arranged at the bottom of the slag discharge cavity, and the slag discharge cavity is connected to the collecting box through the slag discharge pipe.

2. The slag discharge mechanism of the grinding mill according to claim 1, characterized in that: It comprises an exhaust fan, and an exhaust pipe is arranged on the top of the slag discharge cavity, and the slag discharge cavity is connected with the exhaust fan through the exhaust pipe.

3. The slag discharge mechanism of the grinding mill according to claim 1, characterized in that: The opening adjustment mechanism includes an adjustment plate arranged corresponding to the slag discharge port, on which two strip-shaped limit holes are arranged vertically and parallelly, and threaded holes are arranged corresponding to the limit holes on the side wall of the main engine volute, and limit bolts are arranged in the threaded holes.

4. The slag discharge mechanism of the grinding mill according to claim 1, characterized in that: The slag discharge port is a horizontally long strip-shaped slag discharge port.

5. The slag discharge mechanism of the grinding mill according to claim 1, characterized in that: An inspection port is provided on one side of the slag discharge chamber, and an inspection door is hinged at the inspection port.

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