Feed inlet structure of vertical flour mill

Abstract

The utility model relates to the technical field of flour mills, and discloses a feed port structure of a vertical flour mill, which comprises a working rack, the right side of the top wall of the working rack is fixedly connected with a trapezoidal fixing block, the top wall of the trapezoidal fixing block is fixedly connected with a driving motor, the output end of the driving motor is fixedly connected with an auger, and the auger is fixedly connected with a feed port of the vertical flour mill. A feeding pipe is arranged on the outer wall of the auger and fixedly connected to the left side of the top wall of the working rack, the upper middle portion of the rear side of the feeding pipe communicates with a crushing and screening pipe, a rotating motor is fixedly connected to the middle of the right side of the crushing and screening pipe, and the output end of the rotating motor is fixedly connected with a driving gear. According to the stone crushing and screening device, stone is crushed through the crushing and rolling wheel and screened through the screening steel bars, the qualified stone is conveyed into the feeding pipe, the stone is conveyed along the feeding pipe through the packing auger, and sufficient preparation is made for subsequent machining procedures.

Description

Technical Field

[0001] The utility model relates to the technical field of flour mills, in particular to a feeding port structure of a vertical flour mill. Background Art

[0002] The vertical flour mill is an important device widely used in the industrial field. Stones enter from the feeding port and fall in the center of the grinding disc. Under the action of centrifugal force, they move towards the edge of the grinding disc, and at the same time are rolled and ground by the grinding rollers. It can process a large amount of stones in a short time, and its floor area is relatively small, saving the space of the factory.

[0003] The feeding port of the vertical flour mill is funnel-shaped, with a larger upper opening to facilitate the smooth pouring of a large amount of stones. Its inner wall is generally relatively smooth to reduce the resistance and adhesion of the stones during entry. At the feeding port, by adjusting its opening degree, the feeding speed and flow rate of the stones can be controlled to ensure the stable operation of the flour mill.

[0004] The existing feeding port of the vertical flour mill controls the size of the stones entering the vertical flour mill by changing the shape and size of the feeding port. Stones that are too large can only be broken manually and then put in again, resulting in a waste of manpower and time, and directly leading to a significant decrease in work efficiency. Summary of the Utility Model

[0005] In order to make up for the above deficiencies, the utility model provides a feeding port structure of a vertical flour mill, aiming to improve the problem that the existing feeding port of the vertical flour mill controls the size of the stones entering the vertical flour mill by changing the shape and size of the feeding port. Stones that are too large can only be broken manually and then put in again, resulting in a waste of manpower and time, and directly leading to a significant decrease in work efficiency.

[0006] To achieve the above object, the utility model adopts the following technical solutions: A feeding port structure of a vertical mill includes a workbench frame. A trapezoidal fixed block is fixedly connected to the right side of the top wall of the workbench frame. A driving motor is fixedly connected to the top wall of the trapezoidal fixed block. The output end of the driving motor is fixedly connected to a screw conveyor. A feeding pipe is arranged on the outer wall of the screw conveyor. The feeding pipe is fixedly connected to the left side of the top wall of the workbench frame. The upper middle part of the rear side of the feeding pipe is communicated with a crushing and screening pipe. A rotating motor is fixedly connected to the middle part of the right side of the crushing and screening pipe. The output end of the rotating motor is fixedly connected to a driving gear. A direction-changing gear is meshed and connected to the rear side of the outer wall of the driving gear. Driving gears are meshed and connected to the front side of the outer wall of the driving gear and the rear side of the outer wall of the direction-changing gear. The left ends of both driving gears are fixedly connected to crushing and rolling wheels. The left ends of both crushing and rolling wheels are rotatably connected to the left side inner wall of the crushing and screening pipe. A plurality of screening steel bars are fixedly connected to the inner bottom wall of the crushing and screening pipe. The plurality of screening steel bars are longitudinally arranged at equal intervals. A waste material tank is communicated with the front side of the inner bottom wall of the crushing and screening pipe. A dust adsorption mechanism is arranged in the middle of the top wall of the feeding pipe.

[0007] As a further description of the above technical solution:

[0008] The dust adsorption mechanism includes a dust collector. A transmission pipe is communicated with the left side of the dust collector. The bottom end of the transmission pipe is communicated with a water tank. The bottom end of the transmission pipe is communicated with the front bottom end of the water tank. A pressure relief valve is fixedly connected to the left top end of the water tank. A water injection pipe is communicated with the right end of the front side of the water tank. The top end of the water injection pipe is rotatably connected to a water injection cover. A drain pipe is communicated with the bottom wall of the water tank. An electromagnetic drain valve is fixedly installed at the front end of the drain pipe.

[0009] As a further description of the above technical solution:

[0010] A plurality of air inlet holes are equidistantly opened on the right side of the feeding pipe. The outer wall of the screw conveyor is meshed and connected with the inner wall of the feeding pipe.

[0011] As a further description of the above technical solution:

[0012] A plurality of diagonal braces are fixedly connected to the front and rear sides of the workbench frame. The plurality of diagonal braces are cross-fixedly connected.

[0013] As a further description of the above technical solution:

[0014] A control console is fixedly connected to the right end of the top wall of the workbench frame. A plurality of control buttons are fixedly installed on the top of the control console.

[0015] As a further description of the above technical solution:

[0016] On the right side of the trapezoidal fixing block, a tachometer is fixedly connected, and the tachometer is electrically connected to the driving motor.

[0017] As a further description of the above technical solution:

[0018] At the bottom end of the workbench frame, a rubber bottom plate is fixedly connected, and the bottom surface of the rubber bottom plate uses a frosting process.

[0019] As a further description of the above technical solution:

[0020] The periphery of the workbench frame is designed to be smooth, and a baffle is fixedly connected to the inner bottom wall of the crushing and screening pipe.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, the stone materials are first crushed by the crushing and rolling wheels and then fall onto the screening steel bars for screening. The stone materials with smaller particle sizes will fall through the gaps between the screening steel bars into the waste chute at the bottom and be screened out, while the qualified stone materials are transported into the feeding pipe and conveyed along the feeding pipe by the auger, preparing for the subsequent processing procedures.

[0023] 2. In the utility model, the dust-containing air is transported from the transmission pipe to the water tank by the dust collector, so that the dust-containing air is in full contact with water after entering the water tank. Under the adsorption and precipitation effects of water, the dust is effectively separated from the air, thereby realizing the purification of the air and maintaining a good dust adsorption effect. Description of the Drawings

[0024] Figure 1 It is a three-dimensional view of the feeding port structure of a vertical mill proposed by the utility model;

[0025] Figure 2 It is a front view of the feeding port structure of a vertical mill proposed by the utility model;

[0026] Figure 3 It is a structural schematic diagram of the screening steel bars of the feeding port structure of a vertical mill proposed by the utility model;

[0027] Figure 4 It is a structural schematic diagram of the dust adsorption mechanism of the feeding port structure of a vertical mill proposed by the utility model;

[0028] Figure 5 It is a structural schematic diagram of the auger of the feeding port structure of a vertical mill proposed by the utility model.

[0029] Legend Explanation:

[0030] 1. Workbench frame; 2. Dust adsorption mechanism; 201. Dust collector; 202. Transfer pipe; 203. Water tank; 204. Pressure relief valve; 205. Water injection pipe; 206. Water injection cover; 207. Drain pipe; 208. Electromagnetic drain valve; 3. Trapezoidal fixing block; 4. Driving motor; 5. Screw conveyor; 6. Feeding pipe; 7. Crushing and screening pipe; 8. Rotating motor; 9. Driving gear; 10. Direction-changing gear; 11. Driven gear; 12. Crushing and rolling wheel; 13. Screening steel bars; 14. Scrap chute; 15. Air inlet hole; 16. Diagonal brace; 17. Console; 18. Control button; 19. Tachometer; 20. Rubber bottom plate; 21. Baffle plate. Specific embodiments

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0032] Referring to Figure 1 , Figure 3 and Figure 5 , an embodiment provided by the present invention: a feeding port structure of a vertical mill, including a workbench frame 1. A trapezoidal fixing block 3 is fixedly connected to the right side of the top wall of the workbench frame 1. A driving motor 4 is fixedly connected to the top wall of the trapezoidal fixing block 3. The output end of the driving motor 4 is fixedly connected to a screw conveyor 5. A feeding pipe 6 is arranged on the outer wall of the screw conveyor 5. The feeding pipe 6 is fixedly connected to the left side of the top wall of the workbench frame 1. The upper middle part of the rear side of the feeding pipe 6 communicates with a crushing and screening pipe 7. A rotating motor 8 is fixedly connected to the middle part of the right side of the crushing and screening pipe 7. The output end of the rotating motor 8 is fixedly connected to a driving gear 9. A direction-changing gear 10 is meshed and connected to the rear side of the outer wall of the driving gear 9. A driven gear 11 is meshed and connected to both the front side of the outer wall of the driving gear 9 and the rear side of the outer wall of the direction-changing gear 10. The left ends of the two driven gears 11 are fixedly connected to crushing and rolling wheels 12. The left ends of the two crushing and rolling wheels 12 are rotatably connected to the left side of the inner wall of the crushing and screening pipe 7. A plurality of screening steel bars 13 are fixedly connected to the inner bottom wall of the crushing and screening pipe 7. The plurality of screening steel bars 13 are longitudinally arranged at equal intervals. The front side of the inner bottom wall of the crushing and screening pipe 7 communicates with a scrap chute 14. A dust adsorption mechanism 2 is arranged in the middle of the top wall of the feeding pipe 6;

[0033] Specifically, after the stone enters the crushing and screening pipe 7, the output end of the rotating motor 8 drives the driving gear 9 to rotate. The driving gear 9 meshes with the direction-changing gear 10 to change the transmission direction. At the same time, the front side of the outer wall of the driving gear 9 and the rear side of the outer wall of the direction-changing gear 10 both mesh with the driven gear 11, causing the two driven gears 11 to rotate synchronously, and then driving the crushing and rolling wheels 12 to rotate towards each other. The stone is crushed under the rolling action of the crushing and rolling wheels 12. The crushed stone falls onto the screening steel bars 13. The stone that meets the certain size requirements can slide from the screening steel bars 13 into the feeding pipe 6, while the stone with smaller particles directly falls through the gaps between the screening steel bars 13 into the waste chute 14 at the bottom for screening. After being processed in the crushing and screening pipe 7, the stone is transported to the feeding pipe 6. The output end of the driving motor 4 drives the auger 5 to rotate. Through the driving force generated by the rotation of the auger 5, the preliminarily processed stone is transported along the feeding pipe 6 to prepare for the subsequent processing procedures.

[0034] Refer to Figure 1 、 Figure 2 and Figure 4 , the dust adsorption mechanism 2 includes a dust collector 201. The left side of the dust collector 201 is connected to a transmission pipe 202. The bottom end of the transmission pipe 202 is connected to a water tank 203. The bottom end of the transmission pipe 202 is connected to the front bottom end of the water tank 203. A pressure relief valve 204 is fixedly connected to the left top end of the water tank 203. The right front end of the water tank 203 is connected to a water injection pipe 205. The top end of the water injection pipe 205 is rotatably connected to a water injection cap 206. The bottom wall of the water tank 203 is connected to a drain pipe 207. An electromagnetic drain valve 208 is fixedly installed at the front end of the drain pipe 207;

[0035] Specifically, as the auger 5 conveys the stone materials along the feeding pipe 6 during rotation, a large amount of dust will be generated due to the mutual collision of the stone materials. The dust collector 201 in the dust adsorption mechanism 2 quickly inhales this dusty air. The inhaled dusty air is conveyed to the water tank 203 through the transmission pipe 202. The bottom end of the transmission pipe 202 is connected to the front bottom end of the water tank 203, enabling the dusty air to come into full contact with water after entering the water tank 203. Under the adsorption and sedimentation effects of water, the dust is effectively separated from the air, thus achieving air purification. Since the wind force generated by the dust collector 201 is relatively large and the water tank 203 is in a closed state, the internal pressure will be greater than the external pressure during the process of blowing air into the water tank 203. The pressure relief valve 204 can keep the pressure difference between the inside and outside of the water tank 203 relatively stable. The water injection pipe 205 is used to supplement clean water to the water tank 203 when needed to ensure there is enough water volume to adsorb dust. The water injection cap 206 at the top of the water injection pipe 205 can provide a certain degree of sealing for the water tank 203 to prevent internal dust from overflowing. The drain pipe 207 connected to the bottom wall of the water tank 203 and the electromagnetic drain valve 208 at its front end are used to automatically control the discharge of sewage when the water in the water tank 203 reaches a certain degree of pollution or after being used for a period of time, so as to replace the clean water and maintain a good dust adsorption effect.

[0036] Refer to Figure 1 , Figure 2 and Figure 5 , a plurality of air inlet holes 15 are equidistantly arranged on the right side of the feeding pipe 6, and the outer wall of the auger 5 is meshed and connected with the inner wall of the feeding pipe 6; a plurality of diagonal braces 16 are fixedly connected to the front and rear sides of the workbench frame 1, and the plurality of diagonal braces 16 are all cross-fixed; a control console 17 is fixedly connected to the right end of the top wall of the workbench frame 1, and a plurality of control buttons 18 are fixedly installed on the top of the control console 17;

[0037] Specifically, the plurality of air inlet holes 15 on the right side of the feeding pipe 6 can balance the air pressure inside the feeding pipe 6, avoid abnormal internal pressure caused by the conveyance of stone materials, and contribute to the smooth conveyance of stone materials. The meshed connection between the outer wall of the auger 5 and the inner wall of the feeding pipe 6 can improve the efficiency of the auger 5 in pushing the stone materials and reduce leakage and blockage of the stone materials during conveyance. The plurality of diagonal braces 16 fixedly and cross-connected to the front and rear sides of the workbench frame 1 enhance the structural stability of the workbench frame 1, enabling it to withstand the vibration and pressure generated during the operation of the pulverizer and ensuring the stable operation of the equipment. The control console 17 at the right end of the top wall of the workbench frame 1 serves as the control center of the entire equipment, and the plurality of control buttons 18 on its top are used to regulate and switch on and off the dust collector 201, the drive motor 4, and the rotation motor 8.

[0038] Refer to Figure 1 and Figure 3The right side of the trapezoidal fixed block 3 is fixedly connected with a tachometer 19, and the tachometer 19 is electrically connected to the drive motor 4; the bottom end of the workbench 1 is fixedly connected with a rubber bottom plate 20, and the bottom surface of the rubber bottom plate 20 uses a frosted process; the surroundings of the workbench 1 are all smooth in design, and the inner bottom wall of the crushing and screening pipe 7 is fixedly connected with a baffle 21;

[0039] Specifically, the tachometer 19 is electrically connected to the drive motor 4 and can monitor the speed of the drive motor 4 in real time, so that the operator can adjust the motor speed according to actual needs to ensure the effect of stone transportation and processing. The rubber base plate 20 uses a frosting process on its bottom surface to increase the friction with the ground, improve the stability of the entire equipment, and reduce the shaking of the equipment during operation. The smooth design around the workbench 1 can prevent the operator from being accidentally scratched during operation, thereby improving the safety of use. The baffle 21 fixedly connected to the bottom wall of the crushing and screening tube 7 can intercept unqualified stones and guide them into the waste trough 14.

[0040] Working principle: after the stone enters the crushing and screening pipe 7, the output end of the rotating motor 8 drives the driving gear 9 to rotate, and the driving gear 9 and the changing gear 10 mesh with each other to change the transmission direction. At the same time, the front side of the outer wall of the driving gear 9 and the rear side of the outer wall of the changing gear 10 are meshed with the driven gear 11, so that the two driven gears 11 rotate synchronously, thereby driving the crushing and rolling wheels 12 to rotate in opposite directions. The stone is crushed under the crushing action of the crushing and rolling wheels 12, and the crushed stone falls on the screening steel bars 13. The stone that meets the certain size requirements can slide from the screening steel bars 13 to the feeding pipe 6, and the smaller granular stone directly falls from the gap between the screening steel bars 13 to the waste trough 14 at the bottom to be screened out. After being processed in the crushing and screening pipe 7, the stone is transported to the feeding pipe 6, and the output end of the driving motor 4 drives the auger 5 to rotate. The driving force generated by the rotation of the auger 5 transports the preliminarily processed stone along the feeding pipe 6.

[0041] And since the auger 5 conveys the stone along the feed pipe 6 during rotation, a large amount of dust will be generated due to the mutual collision between the stones. The dust collector 201 in the dust adsorption mechanism 2 quickly inhales this dusty air. The inhaled dusty air is conveyed to the water tank 203 through the transmission pipe 202. The bottom end of the transmission pipe 202 is connected to the front bottom end of the water tank 203, so that after the dusty air enters the water tank 203, it fully contacts with the water. Under the adsorption and precipitation action of the water, the dust is effectively separated from the air, thus realizing the purification of the air. Since the wind force generated by the dust collector 201 is relatively large and the water tank 203 is in a closed state, the internal pressure will be greater than the external pressure during the process of blowing air into the water tank 203. The pressure relief valve 204 can keep the pressure difference between the inside and outside of the water tank 203 relatively stable. The water injection pipe 205 is used to supplement clean water into the water tank 203 when needed to ensure there is enough water volume to adsorb dust. The water injection cap 206 at the top end of the water injection pipe 205 can provide a certain degree of sealing for the water tank 203 to prevent internal dust from overflowing. The drain pipe 207 connected to the bottom wall of the water tank 203 and the electromagnetic drain valve 208 at its front end are used to automatically control the discharge of sewage when the water in the water tank 203 reaches a certain degree of pollution or after being used for a period of time, so as to replace the clean water.

[0042] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. The feeding port structure of a vertical mill, comprising a workbench frame (1), characterized in that: On the right side of the top wall of the workbench frame (1), a trapezoidal fixed block (3) is fixedly connected. On the top wall of the trapezoidal fixed block (3), a driving motor (4) is fixedly connected. The output end of the driving motor (4) is fixedly connected with a screw conveyor (5). The outer wall of the screw conveyor (5) is provided with a feeding pipe (6). The feeding pipe (6) is fixedly connected to the left side of the top wall of the workbench frame (1). The upper middle part of the rear side of the feeding pipe (6) is communicated with a crushing and screening pipe (7). In the middle part of the right side of the crushing and screening pipe (7), a rotating motor (8) is fixedly connected. The output end of the rotating motor (8) is fixedly connected with a driving gear (9). The rear side of the outer wall of the driving gear (9) is meshed with a direction-changing gear (10). The front side of the outer wall of the driving gear (9) and the rear side of the outer wall of the direction-changing gear (10) are both meshed with a driven gear (11). The left ends of the two driven gears (11) are both fixedly connected with crushing and rolling wheels (12). The left ends of the two crushing and rolling wheels (12) are both rotatably connected to the left side inner wall of the crushing and screening pipe (7). On the inner bottom wall of the crushing and screening pipe (7), a plurality of screening steel bars (13) are fixedly connected. The plurality of screening steel bars (13) are longitudinally arranged at equal intervals. The front side of the inner bottom wall of the crushing and screening pipe (7) is communicated with a waste material tank (14). In the middle part of the top wall of the feeding pipe (6), a dust adsorption mechanism (2) is arranged. The dust adsorption mechanism (2) is used for adsorbing the dust generated by the rotation of the stone materials during the feeding process.

2. The feeding port structure of a vertical mill according to claim 1, characterized in that: The dust adsorption mechanism (2) includes a dust collector (201). The left side of the dust collector (201) is communicated with a transmission pipe (202). The bottom end of the transmission pipe (202) is communicated with a water tank (203). The bottom end of the transmission pipe (202) is communicated with the front side bottom end of the water tank (203). The left top end of the water tank (203) is fixedly connected with a pressure relief valve (204). The front side right end of the water tank (203) is communicated with a water injection pipe (205). The top end of the water injection pipe (205) is rotatably connected with a water injection cover (206). The bottom wall of the water tank (203) is communicated with a drain pipe (207). The front end of the drain pipe (207) is fixedly installed with an electromagnetic drain valve (208).

3. The feeding port structure of a vertical mill according to claim 1, characterized in that: A plurality of air inlet holes (15) are equidistantly arranged on the right side of the feeding pipe (6). The outer wall of the screw conveyor (5) is meshed with the inner wall of the feeding pipe (6).

4. The feeding port structure of a vertical mill according to claim 1, characterized in that: A plurality of diagonal braces (16) are fixedly connected to the front and rear sides of the workbench frame (1). The plurality of diagonal braces (16) are all cross-fixedly connected.

5. The feeding port structure of a vertical mill according to claim 1, characterized in that: On the right end of the top wall of the workbench frame (1), a control console (17) is fixedly connected. On the top of the control console (17), a plurality of control buttons (18) are fixedly installed.

6. The feeding port structure of a vertical mill according to claim 1, characterized in that: On the right side of the trapezoidal fixed block (3), a tachometer (19) is fixedly connected. The tachometer (19) is electrically connected with the driving motor (4).

7. The feeding port structure of a vertical mill according to claim 1, characterized in that: On the bottom end of the workbench frame (1), a rubber bottom plate (20) is fixedly connected. The bottom surface of the rubber bottom plate (20) uses a frosted process.

8. The feeding port structure of a vertical mill according to claim 1, characterized in that: The four sides of the workbench frame (1) are all designed to be smooth. On the inner bottom wall of the crushing and screening pipe (7), a baffle (21) is fixedly connected.

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