Wheat crushing mill

Abstract

A wheat crushing mill is used for primarily crushing wheat, a grinding roller set with grinding teeth is arranged in the wheat crushing mill, the grinding teeth are circumferentially distributed on the surfaces of the grinding rollers in a surrounding mode, a space groove is formed between every two adjacent grinding teeth, the grinding teeth of every two adjacent grinding rollers are arranged in a staggered mode, and the grinding teeth on one grinding roller are meshed with key grooves in the other grinding roller. Wheat grains can be fully crushed, the crushing effect is good, the crushing efficiency is high, and the processing speed is controllable.

Description

Technical Field

[0001] The utility model belongs to the technical field of flour, in particular to a crushing mill for performing preliminary crushing processing on wheat. Background Art

[0002] The northern part of my country is good at making all kinds of pasta, and the raw flour used is obtained by crushing wheat. With the continuous advancement of agricultural mechanization, the flour used by the Chinese people is almost all produced and processed by large-scale flour processing plants. Due to the maturity and transparency of flour processing technology: removing impurities → moistening wheat → crushing → coarse grinding → cleaning flour → sieving → fine grinding → finished flour, most flour processing manufacturers directly assemble the ready-made equipment into a production line by purchasing it, without considering whether to make appropriate optimization and modification.

[0003] However, with the subdivision of flour types and the increasing demand for flour quality, existing equipment and processes can no longer meet the demand. For example, the existing equipment for crushing and grinding wheat grains for the first cold grinding uses smooth grinding rollers for secondary processing, and the smooth roller surface of the grinding roller is wire-brushed to increase the friction and gripping force of the grinding roller surface, improve the roughness, and enable the wheat grains to be fully crushed under the extrusion of the grinding roller. However, with the continuous operation of the equipment, the wire-brushed lines on the grinding roller are easily slowly smoothed by the wheat grains, and the grinding roller has poor quality and low efficiency in crushing wheat grains, which is difficult to meet the demand. The surface of the grinding roller needs to be wire-brushed again. At the same time, the surface of the grinding roller that has been wire-brushed multiple times is missing, the spacing between the grinding roller groups is increased and uneven, and the wear rate is faster, which makes it even more difficult to meet the demand. Utility Model Content

[0004] In order to solve the deficiencies of the prior art, the utility model provides a wheat crushing mill, which can fully crush wheat grains during the first cold grinding.

[0005] The technical problem to be solved by the utility model is achieved through the following technical solutions:

[0006] A wheat crushing mill comprises a casing, a grinding roller group is arranged in the casing, a feeding pipe is connected to the grinding roller group, a feeding hopper is arranged between the grinding roller group and the feeding pipe, two discharging rollers arranged in a stepped manner and rotating in the same direction are arranged at the lower end of the feeding hopper, a discharging hopper is arranged below the grinding roller group, and the lower end of the discharging hopper is connected to the discharging pipe, the grinding roller group comprises two grinding rollers matched with each other, the surfaces of the grinding rollers are evenly provided with circumferentially distributed grinding teeth, the grinding teeth are arranged in parallel, and grooves are formed between adjacent grinding teeth, the grinding teeth of the two grinding rollers are arranged in a staggered manner, and the grinding teeth on one grinding roller are meshed with the grooves on the other grinding roller.

[0007] In the utility model, the grinding teeth are rectangular teeth, oblique teeth or arc-shaped teeth, and the matching intermediate grooves are rectangular grooves, oblique grooves or arc-shaped grooves.

[0008] In the utility model, the discharge roller is arranged in parallel with the grinding roller, and a plurality of axial discharge grooves are evenly distributed on the discharge roller, and the capacity of the discharge groove is not less than one grain of wheat.

[0009] Furthermore, the two discharge rollers include an upper discharge roller and a lower discharge roller. The lower discharge roller is located below and in front of the upper discharge roller, and the upper discharge roller and the lower discharge roller are gap-matched. A scraper is provided at the lower end of the feed hopper, and the scraper is located obliquely above and in front of the lower discharge roller, and is gap-matched with the lower discharge roller.

[0010] Furthermore, a brush is provided at the lower part of the feed hopper, and the brush is located obliquely above and in front of the upper discharge roller and is in gap fit with the upper discharge roller.

[0011] In the utility model, a baffle is provided at the lower end of the discharging hopper, an air inlet is provided at the center or rear part of the middle of the baffle, the baffle around the air inlet is arranged in a concave shape, the lower end of the discharging pipe penetrates into the discharging hopper from the rear of the discharging hopper, the opening of the discharging pipe is located above the concave and downward, the discharging pipe is an air lift pipe, and the discharging pipe feeds the material upward.

[0012] Furthermore, a mesh plate is provided in the air inlet, and the baffle is detachably connected to the discharge hopper.

[0013] Furthermore, an air curtain is provided on the outer side of the air inlet.

[0014] In the utility model, a motor is arranged in the housing, and the motor drives the grinding roller group and further drives the lower discharge roller and the upper discharge roller.

[0015] In the utility model, an observation window is provided on the casing, the observation window is provided at the discharging roller, and a transparent cover plate is provided at the observation window.

[0016] Compared with the prior art, the utility model has the following advantages:

[0017] The present application adopts a grinding roller with grinding teeth to achieve the crushing of wheat grains for a long time, and there is no need to frequently consider whether the grinding roller needs to be reprocessed, and the crushing effect is good and the crushing efficiency is high;

[0018] The present application performs the first step of crushing the dried wheat grains, and the dried wheat grains will not adhere to the grooves and affect the crushing effect of the grinding roller, and the coordination effect is good;

[0019] The present application adopts a stepped arrangement of discharge rollers, which, under the constraints of brushes and scrapers, can ensure that the speed at which the feed hopper feeds the grinding roller group is uniform and controllable;

[0020] The present application adopts an air lift tube to extract the crushed particles, and the discharge is clean, which can effectively prevent the accumulation of crushed particles in the discharge hopper and affect the crushing work and subsequent grinding work.

[0021] Therefore, the utility model has novel conception and ingenious design, can fully crush the wheat grains, has good crushing effect, high crushing efficiency and controllable processing rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is the appearance diagram of the utility model;

[0023] Figure 2 It is a schematic diagram of the structure of the utility model;

[0024] Figure 3 for Figure 2 A side view schematic diagram of

[0025] Figure 4 It is a schematic diagram of the local structure of the grinding roller of the utility model;

[0026] Figure 5 for Figure 3 Top view of the baffle in .

[0027] In the figure: casing 1, feed pipe 2, discharge pipe 3, feed hopper 4, upper discharge roller 5, lower discharge roller 6, brush 7, scraper 8, grinding roller group 9, discharge hopper 10, baffle 11, air inlet 12, air curtain 13, motor 14, mesh plate 15, grinding teeth 16, slot 17, observation window 18. DETAILED DESCRIPTION

[0028] The present invention is further described below in conjunction with the accompanying drawings and specific preferred embodiments, but the protection scope of the present invention is not limited thereby.

[0029] A wheat crushing mill, such as Figure 1 As shown, it includes a casing 1, a feed pipe 2 and a discharge pipe 3. The feed pipe 2 feeds materials from above, and the discharge pipe 3 discharges materials upward. An observation window 18 is opened in the middle of the casing 1, and a transparent cover is provided at the observation window 18.

[0030] exist Figure 2 and Figure 3 In the figure, a feed hopper 4 is connected to the lower part of the feed pipe 2, and an upper discharge roller 5 and a lower discharge roller 6 are arranged at the lower opening of the feed hopper 4. The upper discharge roller 5 and the lower discharge roller 6 are arranged in a stepped manner, and the upper discharge roller 5 and the lower discharge roller 6 are gap-matched. A brush 7 is provided at the lower part of the feed hopper 4, and the brush 7 is located at the upper front and oblique front of the upper discharge roller 5, and is gap-matched with the upper discharge roller 5. A scraper 8 is provided at the lower end of the feed hopper 4, and the scraper 8 is located at the upper front and oblique front of the lower discharge roller 6, and is gap-matched with the lower discharge roller 6; a plurality of sets of axial discharge grooves are evenly distributed on the upper discharge roller 5 and the lower discharge roller 6, and the capacity of the discharge groove is not less than one grain of wheat, so that the upper discharge roller 5 and the lower discharge roller 6 can be quantitatively fed downward when they rotate.

[0031] A grinding roller group 9 is arranged below the feed hopper 4. The grinding roller group 9 crushes the wheat grains sent from the feed hopper 4. The grinding roller group 9 includes two grinding rollers that cooperate with each other. The grinding roller surfaces are evenly provided with grinding teeth 16 distributed circumferentially. The grinding teeth 16 are arranged in parallel. Grooves 17 are formed between adjacent grinding teeth 16. The grinding teeth 16 of the two grinding rollers are arranged in a staggered manner. The grinding teeth 16 on one grinding roller mesh with the grooves 17 on the other grinding roller. Figure 4 In the embodiment, the grinding teeth 16 are rectangular teeth, and the intermediate grooves 17 are rectangular grooves.

[0032] A discharge hopper 10 is provided below the grinding roller group 9. The discharge hopper 10 receives the wheat grain fragments crushed by the grinding roller group 9 and guides them to the discharge pipe 3. A baffle 11 is provided at the lower end of the discharge hopper 10. The baffle 11 is detachably connected to the discharge hopper 10. Figure 5 In the figure, the rear middle part of the baffle 11 is set as the air outlet 12, a mesh plate 15 is set in the air outlet 12, and an air curtain 13 is set on the outside of the air inlet 12. The baffle 11 around the air outlet 12 is set in a concave shape, and the lower end of the discharge pipe 3 penetrates into the discharge hopper 10 from the rear of the discharge hopper 10. The opening of the discharge pipe 3 is located above the concave and downward, and the discharge pipe 3 is an air lift pipe.

[0033] A motor 14 is arranged in the casing 1, and the motor 14 drives the grinding roller group 9 through a belt. The two grinding rollers of the grinding roller group 9 are driven by gear meshing. The two grinding rollers rotate in opposite directions, and both drive the wheat grain materials to rotate between the two grinding rollers. The grinding roller group 9 drives the lower discharge roller 8 through the gear. The rotation direction of the lower discharge roller 8 is the same as the rotation direction of the front grinding roller. The lower discharge roller 8 drives the upper discharge roller 7 through a belt. The rotation direction of the upper discharge roller 7 is consistent with the rotation direction of the lower discharge roller 8.

[0034] The utility model is applied to the wheat grinding process. When the wheat grains are initially crushed, the wheat grain materials are fed into the equipment from the feed pipe 2 and fall into the feed hopper 4. The upper discharge roller 7 and the lower discharge roller 8 push the wheat grains in the discharge trough through the constraints of the brush 5 and the scraper 6, and push the wheat grains to the grinding roller group 9 below evenly. After the initial crushing by the grinding roller group 9, the wheat grains become broken grains and fall into the discharge hopper 10 below, and are lifted and sent away by the discharge pipe 3, and pushed to the next step of the grinding machine.

[0035] In summary, combined with the above structure and use process, it can be found that the utility model has a novel concept and a clever design, can fully crush the wheat grains, has a good crushing effect, has a high crushing efficiency, and a controllable processing rate.

Claims

1. A wheat crushing mill, comprising a casing, a grinding roller group is arranged in the casing, and a feeding pipe is connected to the grinding roller group, characterized in that: A feed hopper is arranged between the grinding roller group and the feed pipe. Two discharge rollers arranged in a stepped manner and rotating in the same direction are arranged at the lower end of the feed hopper. A discharge hopper is arranged below the grinding roller group. The lower end of the discharge hopper is connected to the discharge pipe. The grinding roller group includes two grinding rollers that cooperate with each other. The surfaces of the grinding rollers are evenly provided with circumferentially distributed grinding teeth. The grinding teeth are arranged in parallel, and grooves are formed between adjacent grinding teeth. The grinding teeth of the two grinding rollers are staggered, and the grinding teeth on one grinding roller are meshed with the grooves on the other grinding roller.

2. The wheat crushing mill according to claim 1, characterized in that: The grinding teeth are rectangular teeth, oblique teeth or arc-shaped teeth, and the matching intermediate grooves are rectangular grooves, oblique grooves or arc-shaped grooves.

3. The wheat crushing mill according to claim 1, characterized in that: The discharge roller is arranged in parallel with the grinding roller, and a plurality of axial discharge grooves are evenly distributed on the discharge roller, and the capacity of the discharge groove is not less than one grain of wheat.

4. The wheat crushing mill according to claim 3, characterized in that: The two discharge rollers include an upper discharge roller and a lower discharge roller. The lower discharge roller is located below and in front of the upper discharge roller, and there is a gap between the upper and lower discharge rollers. A scraper is provided at the lower end of the feed hopper. The scraper is located obliquely above and in front of the lower discharge roller and is gap-matched with the lower discharge roller.

5. The wheat crushing mill according to claim 4, characterized in that: A brush is provided at the lower part of the feed hopper, and the brush is located obliquely above and in front of the upper discharge roller and is in gap fit with the upper discharge roller.

6. The wheat crushing mill according to claim 1, characterized in that: A baffle is provided at the lower end of the discharging hopper, and an air inlet is provided at the center or rear part of the middle of the baffle. The baffle around the air inlet is arranged in a concave shape. The lower end of the discharging pipe penetrates into the discharging hopper from the rear of the discharging hopper. The opening of the discharging pipe is located above the concave and downward. The discharging pipe is an air lift pipe, and the discharging pipe feeds the material upward.

7. The wheat crushing mill according to claim 6, characterized in that: A mesh plate is arranged in the air inlet, and the baffle is detachably connected to the discharge hopper.

8. The wheat crushing mill according to claim 7, characterized in that: An air curtain is arranged on the outer side of the air inlet.

9. The wheat crushing mill according to claim 1, characterized in that: The casing is provided with an observation window, which is arranged at the discharging roller, and a transparent cover plate is arranged at the observation window.

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