Flour mill

Abstract

The utility model relates to a flour mill which comprises a base, an air return box, a fan and a flour milling main machine, an inner cavity with an upward opening is arranged in the base, and the air return box is sleeved on the base; the output end of the fan is communicated with the air return box; a first double-layer barrel is arranged at the upper end of the base, and a first material conveying channel is arranged in the inner wall of the first double-layer barrel; a second double-layer barrel communicated with the first double-layer barrel is arranged at the upper end of the first double-layer barrel, a second material conveying channel is arranged in the inner wall of the second double-layer barrel, and the second material conveying channel is communicated with the first material conveying channel; a material throwing device is arranged in the second double-layer barrel, and a feeding pipe is fixedly arranged on the side wall of the second double-layer barrel; the lower end part of the grinding main machine is arranged in the inner cavity, and the upper end part of the grinding main machine extends into the first double-layer cylinder body; and a grader is arranged at the upper end of the second double-layer barrel. Compared with the prior art, operation load can be reduced, and grinding efficiency can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to ore processing equipment technical field, specifically, especially relates to a flour mill. BACKGROUND

[0002] The flour mill is mainly used for grinding glass, rubber, pesticide, enamel, paint, phosphate fertilizer, papermaking and other chemical industry. Hardness is below seven Mohs, humidity is below 6%, non-inflammable and explosive material. Such as: talc, barite, calcite, limestone, manganese ore, iron ore, chromium ore, quartz stone, gypsum, bentonite and so on.

[0003] The flour mill in prior art still has some problems in the grinding process, the grinding process efficiency of the flour mill is low, and the energy consumption is high, so it is necessary to solve these problems. UTILITY MODEL CONTENT

[0004] The utility model aims at solving one of the above technical problems in prior art at least to some extent. For this purpose, one purpose of the utility model is to provide a flour mill capable of reducing operation load and improving grinding efficiency.

[0005] The utility model solves the above technical problem, and the technical scheme is as follows: a flour mill, including base, return gas tank, fan and grinding host, the base is provided with the inner chamber that opens upwards in, the return gas tank is sleeved on the base and communicates with the inner chamber, the fan is fixed on one side of the base, and the output end of the fan communicates with the return gas tank.

[0006] The upper end of the base is fixedly provided with a first double-layer cylinder body in communication with the inner chamber, and a first material conveying channel is arranged in the inner wall of the first double-layer cylinder body, the upper end of the first double-layer cylinder body is fixedly provided with a second double-layer cylinder body in communication therewith, a second material conveying channel is arranged in the inner wall of the second double-layer cylinder body, and the second material conveying channel communicates with the first material conveying channel, a material throwing device is arranged in the second double-layer cylinder body, and a feeding pipe is fixedly arranged on the side wall of the second double-layer cylinder body.

[0007] The lower end of the grinding host is fixedly arranged in the inner chamber, and the upper end of the grinding host extends into the first double-layer cylinder body.

[0008] The upper end of the second double-layer cylinder body is fixedly provided with a classifier in communication with the upper end thereof, and the edge of the classifier communicates with the second material conveying channel.

[0009] The utility model discloses a beneficial effect is: utilize the material throwing device and throw the raw material dispersion, can accelerate the raw material of relatively coarse and the raw material of relatively thin dispersion, avoid all raw materials directly into the grinding main unit and carry out grinding, reduce the operation load of grinding main unit, promote the grinding efficiency, the raw material of not meeting fineness is ground in the grinding main unit through the second conveying material passageway and the first conveying material passageway, avoid the raw material of not meeting fineness and the raw material of relatively thin mix again and move to the classer place and separate, can effectively promote the separation efficiency of classer, reduce the operation load of classer, promote the classification efficiency, and further promote the grinding efficiency.

[0010] On the basis of the above technical scheme, the utility model still can make following improvement.

[0011] Further, the material throwing device includes a material throwing disc and a transmission box, the transmission box is fixedly arranged in the second double-layer cylinder, the material throwing disc is arranged at the upper end of the transmission box, the material throwing disc is connected with the output end of the transmission box, and the input end of the transmission box extends out of the second double-layer cylinder and is connected with a belt wheel.

[0012] The beneficial effect of the above further scheme is that the material throwing device is simple in structure and high in transmission efficiency, and the material throwing efficiency is improved.

[0013] Further, the utility model also includes a double cyclone collector, the input end of the double cyclone collector is communicated with the output end of the classer through a powder inlet pipe, a first unloading valve is fixedly arranged at the discharge port of the lower end of the double cyclone collector and communicated with the double cyclone collector, and the exhaust port of the double cyclone collector is communicated with the input end of the fan through a return air pipe.

[0014] The beneficial effect of the above further scheme is that the double cyclone collector is used to collect finished products, the interference of airflow on finished product collection is reduced, and the finished product collection efficiency is improved.

[0015] Further, the utility model also includes a dust collector, the dust collector is fixedly arranged at one side of the fan, and the input end of the dust collector is communicated with the return air box through an air return pipe.

[0016] The beneficial effect of the above further scheme is that the dust collector is used to remove dust from the airflow, so that the airflow discharged outside is cleaner, and the environment is prevented from being polluted.

[0017] Further, a mounting bracket is fixedly arranged at the lower end of the dust collector, the lower end of the dust collector extends into the mounting bracket, and a second unloading valve is fixedly arranged at the discharge port of the lower end of the dust collector and communicated with the dust collector.

[0018] The beneficial effect of the above further scheme is that the mounting bracket is used to stabilize the dust collector, and the dust accumulated in the dust removal process of the dust collector can be discharged through the second unloading valve, so that the dust can be conveniently collected.

[0019] Further, the excess air pipe is provided with an adjusting valve for adjusting the air inlet amount.

[0020] The beneficial effect of the further scheme is that the adjusting valve is used to adjust the flow rate and flow of the air flow introduced by the excess air pipe, so as to facilitate the regulation of the air pressure in the air return box, the first double cylinder, the second double cylinder, the classifier and the double cyclone collector. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a structure schematic view of the flour mill.

[0022] Figure 2 It is a structure schematic view of the flour mill main machine, the first double cylinder, the second double cylinder and the classifier.

[0023] In the drawings, the components represented by each reference numeral are listed as follows:

[0024] 1, base, 101, inner cavity;

[0025] 2, air return box, 3, fan, 4, flour mill main machine;

[0026] 5, first double cylinder, 501, first material conveying channel;

[0027] 6, second double cylinder, 601, second material conveying channel;

[0028] 7, material throwing device, 701, material throwing disc, 702, transmission box, 703, belt wheel;

[0029] 8, feeding pipe, 9, classifier, 10, double cyclone collector, 11, powder feeding pipe, 12, first discharging valve, 13, dust collector, 14, excess air pipe, 15, mounting rack, 16, second discharging valve, 17, adjusting valve. DETAILED DESCRIPTION

[0030] The principles and characteristics of the utility model are described below in combination with the drawings, and the examples are only used to explain the utility model and are not used to limit the scope of the utility model.

[0031] As shown in Figure 1 and Figure 2 A flour mill, comprising a base 1, an air return box 2, a fan 3 and a flour mill main machine 4, an inner cavity 101 opening upward is arranged in the base 1, the air return box 2 is sleeved on the base 1 and communicates with the inner cavity 101, the fan 3 is fixed on one side of the base 1, and the output end of the fan 3 communicates with the air return box 2.

[0032] The upper end of the base 1 is fixedly provided with a first double-layer cylinder 5 in communication with the inner cavity 101, and the inner wall of the first double-layer cylinder 5 is provided with a first material conveying channel 501; the upper end of the first double-layer cylinder 5 is fixedly provided with a second double-layer cylinder 6 in communication therewith, and the inner wall of the second double-layer cylinder 6 is provided with a second material conveying channel 601 in communication with the first material conveying channel 501; the second double-layer cylinder 6 is provided with a material throwing device 7, and the sidewall of the second double-layer cylinder 6 is fixedly provided with a feeding pipe 8;

[0033] The lower end of the grinding main machine 4 is fixedly arranged in the inner cavity 101, and the upper end of the grinding main machine 4 extends into the first double-layer cylinder 5;

[0034] The upper end of the second double-layer cylinder 6 is fixedly provided with a classifier 9 in communication with the upper end thereof, and the edge of the classifier 9 is in communication with the second material conveying channel 601.

[0035] In the application of the embodiment, the inner cavity 101 of the base 1 and the air return box 2 are inputted with airflow by the fan 3, and the airflow flows through the first double-layer cylinder 5 and the second double-layer cylinder 6 to the classifier 9 in sequence; the feeding pipe 8 introduces the raw material to be ground, and the raw material falls to the material throwing device 7, which throws out the raw material; the relatively coarse raw material directly falls into the grinding main machine 4 of the base 1 through the second double-layer cylinder 6 and the first double-layer cylinder 5 to be ground, and the relatively coarse raw material is ground into relatively fine raw material; the relatively fine raw material after grinding moves upward to the classifier 9 through the first double-layer cylinder 5 and the second double-layer cylinder 6 under the action of the airflow to be classified; the relatively fine raw material thrown out by the material throwing device 7 directly moves upward to the classifier 9 under the action of the airflow to be sorted, and the finer raw material is sorted out at the classifier 9 to obtain the finished product; the raw material not meeting the fineness moves to the upper end of the second double-layer cylinder 6 under the action of the centrifugal force in the classifier 9, falls into the grinding main machine 4 through the second material conveying channel 601 and the first material conveying channel 501 to be ground, and the relatively fine raw material after grinding moves upward to the classifier 9 through the first double-layer cylinder 5 and the second double-layer cylinder 6 under the action of the airflow to be classified until the finished product is obtained.

[0036] The embodiment utilizes the material throwing device 7 to throw out and disperse the raw material, which can accelerate the dispersion of the relatively coarse raw material and the relatively fine raw material, avoid grinding all the raw material directly into the grinding main machine 4, reduce the running load of the grinding main machine 4, and improve the grinding efficiency; the raw material not meeting the fineness falls into the grinding main machine 4 through the second material conveying channel 601 and the first material conveying channel 501 to be ground, which avoids mixing the raw material not meeting the fineness with the relatively fine raw material again to move to the classifier 9 with the airflow to be sorted, effectively improves the sorting efficiency of the classifier 9, reduces the running load of the classifier 9, improves the classification efficiency, and further improves the grinding efficiency.

[0037] In the above embodiment, the material throwing device 7 comprises a material throwing disc 701 and a transmission box 702, the transmission box 702 is fixedly arranged in the second double-layer cylinder 6, the material throwing disc 701 is arranged at the upper end of the transmission box 702, the material throwing disc 701 is connected with the output end of the transmission box 702, and the input end of the transmission box 702 extends out of the second double-layer cylinder 6 and is connected with a belt pulley 703.

[0038] In specific application, the belt pulley 703 is driven to rotate by an external power device, the belt pulley 703 drives the material throwing disc 701 to rotate through the transmission box 702, and when the raw material falls on the material throwing disc 701, the material throwing disc 701 throws the raw material, facilitating the grinding and sorting of the raw material.

[0039] The material throwing device 7 composed of the material throwing disc 701, the transmission box 702 and the belt pulley 703 has simple structure and high transmission efficiency, and improves the material throwing efficiency.

[0040] In the above embodiment, the double cyclone collector 10 is further arranged, the input end of the double cyclone collector 10 is communicated with the output end of the classifier 9 through a powder inlet pipe 11, a first discharge valve 12 is fixedly arranged at the material outlet of the lower end of the double cyclone collector 10 and communicated with the double cyclone collector 10, and the exhaust port of the double cyclone collector 10 is communicated with the input end of the fan 3 through an air return pipe.

[0041] In specific application, the finished product sorted at the classifier 9 enters the double cyclone collector 10 under the action of the airflow, the double cyclone collector 10 separates the finished product and the airflow, the airflow returns to the fan 3 through the air return pipe, the finished product falls to the bottom of the double cyclone collector 10, and the first discharge valve 12 is opened to guide the raw material in the double cyclone collector 10 out, thereby completing the collection of the finished product.

[0042] In the embodiment, the double cyclone collector 10 is used to collect the finished product, the interference of the airflow on the collection of the finished product is reduced, and the collection efficiency of the finished product is improved.

[0043] In the above embodiment, the dust collector 13 is further arranged, the dust collector 13 is fixedly arranged on one side of the fan 3, and the input end of the dust collector 13 is communicated with the air return box 2 through an air exhaust pipe 14.

[0044] In specific application, when the air pressure in the air return box 2, the first double-layer cylinder 5, the second double-layer cylinder 6, the classifier 9 and the double cyclone collector 10 is too large, part of the airflow can flow to the dust collector 13 through the air exhaust pipe 14, the dust collector 13 performs dust removal on the airflow, the airflow discharged to the outside is more clean, and the environment is prevented from being polluted.

[0045] In the above embodiment, the lower end of the dust collector 13 is fixedly provided with a mounting rack 15, the lower end of the dust collector 13 extends into the mounting rack 15, and a second discharge valve 16 is fixedly arranged at the discharge port of the lower end of the dust collector 13 and communicates with the discharge port.

[0046] In the above embodiment, the dust collector 13 is stabilized by the mounting rack 15, the dust accumulated in the dust collector 13 during the airflow dust removal process can be discharged through the second discharge valve 16, and the dust is convenient to collect.

[0047] In the above embodiment, the air pipe 14 is provided with an adjusting valve 17 for adjusting the air inlet amount.

[0048] In the above embodiment, the adjusting valve 17 is used to adjust the flow rate and flow of the airflow introduced by the air pipe 14, and the air pressure in the air return box 2, the first double-layer cylinder 5, the second double-layer cylinder 6, the classifier 9 and the double cyclone collector 10 is convenient to control.

[0049] The above only describes the preferred embodiment of the present application, and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A mill characterized in that: Including base (1), return gas tank (2), fan (3) and mill main machine (4), the inner chamber (101) that is opened to the up is provided in the base (1), the return gas tank (2) is sleeved on the base (1), and is communicated with the inner chamber (101);The fan (3) is fixed on one side of the base (1), and the output end of the fan (3) is communicated with the return gas tank (2); The upper end of the base (1) is fixedly provided with the first double-layer cylinder (5) communicated with the inner chamber (101), and the inner wall of the first double-layer cylinder (5) is provided with a first conveying material channel (501);The upper end of the first double-layer cylinder (5) is fixedly provided with the second double-layer cylinder (6) communicated therewith, and the inner wall of the second double-layer cylinder (6) is provided with a second conveying material channel (601), which is communicated with the first conveying material channel (501);The second double-layer cylinder (6) is provided with a material throwing device (7), and the side wall of the second double-layer cylinder (6) is fixedly provided with a feeding pipe (8); The lower end of the mill main machine (4) is fixedly arranged in the inner chamber (101), and the upper end of the mill main machine (4) extends into the first double-layer cylinder (5); The upper end of the second double-layer cylinder (6) is fixedly provided with a classifier (9) communicated with the upper end thereof, and the edge of the classifier (9) is communicated with the second conveying material channel (601).

2. The mill of claim 1, wherein: The material throwing device (7) comprises a material throwing disc (701) and a transmission box (702), the transmission box (702) is fixedly arranged in the second double-layer cylinder (6), the material throwing disc (701) is arranged at the upper end of the transmission box (702), the material throwing disc (701) is connected with the output end of the transmission box (702), and the input end of the transmission box (702) extends out of the second double-layer cylinder (6) and is connected with a belt pulley (703).

3. The mill of claim 1, wherein: It also comprises a double cyclone collector (10), the input end of the double cyclone collector (10) is communicated with the output end of the classifier (9) through a powder feeding pipe (11);A first unloading valve (12) is fixedly arranged at the discharge port of the lower end of the double cyclone collector (10) and communicated therewith;The exhaust port of the double cyclone collector (10) is communicated with the input end of the fan (3) through a return air pipe.

4. The mill of claim 1, wherein: It also comprises a dust collector (13), which is fixedly arranged on one side of the fan (3), and the input end of the dust collector (13) is communicated with the return gas tank (2) through a remaining air pipe (14).

5. The mill of claim 4, wherein: The lower end of the dust collector (13) is fixedly provided with a mounting bracket (15), and the lower end of the dust collector (13) extends into the mounting bracket (15), and a second unloading valve (16) is fixedly arranged at the discharge port of the lower end of the dust collector (13) and communicated therewith.

6. The mill of claim 4, wherein: An adjusting valve (17) for adjusting the air inlet amount is arranged on the remaining air pipe (14).

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