Stone removing machine for grain processing

Abstract

The utility model relates to the technical field of grain processing, in particular to a stoning machine for grain processing, which comprises a case and a discharge box mounted at the bottom of the case and communicated with the case, a plurality of filter plates in the case are driven by a motor to continuously rotate, grain rice with smaller outer diameter specification can pass through meshes of the filter plates, and the discharge box is communicated with the discharge box. Gravel automatically falls into the discharging box through gravity, the gravel with the large outer diameter specification can be intercepted on the surface of the filtering plate, the gravel is automatically and rotationally thrown into the gravel collecting hopper along with rotation of the filtering plate, continuous feeding and gravel removing can be achieved, and due to the fact that the grain rice is not soaked, the grain rice does not need to be dried, and the grain rice drying efficiency is improved. The discharging device has the advantage of being high in working efficiency, grain unhulled rice entering the discharging box and subjected to stone removal can be blown by airflow on the two sides of the air exhaust base, empty unhulled rice with the lightest weight can be blown into the filtering and collecting covers on the two sides of the discharging box, screening and falling of the empty unhulled rice are automatically completed in the grain unhulled rice discharging process, and the discharging device has the advantage of being good in screening effect.

Description

Technical Field

[0001] The utility model relates to the technical field of grain processing, in particular to a stone removing machine for grain processing. Background Art

[0002] The de-stoner is a kind of impurity removal equipment that utilizes the difference in density and suspension speed between granular materials and minerals, and uses mechanical wind power and a screen surface that reciprocates in a certain trajectory to separate minerals from granular materials. It is an indispensable key equipment in the rice processing technology. According to the different ways of using wind, the specific gravity de-stoner is mainly divided into several categories such as suction type, blowing type and circulating air type. Specifically, it includes a double-layer screen suction type specific gravity grading de-stoner, a suction type re-selection specific gravity de-stoner with a re-selection de-stoner screen, a double-screen suction type specific gravity de-stoner with a crushing removal screen, a suction type and blowing type screening de-stoner combination machine with a large, medium and small impurity removal screen, and a single-layer screen surface circulating air specific gravity de-stoner, a double-layer screen surface circulating air specific gravity grading de-stoner, and a circulating air combination cleaning machine.

[0003] The Chinese utility model patent with the authorization announcement number "CN211801601 U" is specifically "a stone removal machine for grain processing". Its specification states that "the utility model has the function of removing stones from grain and rice by setting a stone removal box. After being filtered by the preliminary screen, the grain and rice fall into the stone removal box. Due to the density difference between sand and gravel and grain and rice, the sand and gravel will sink to the bottom of the water, while the grain and rice will float on the water surface. After complete sedimentation, the grain and rice are pumped out together with the water through a water pump, and the collection box is pulled out by a handle to remove the sand and gravel collected at the bottom of the water, thereby avoiding the problem of dust generated by wind stone removal";

[0004] The above-mentioned device pours grain rice with sand and gravel into water, and uses the density difference between sand and gravel and grain rice to separate the grain rice and sand and gravel. Although the grain rice can be de-stoned, the grain rice needs to be dried in time after being soaked in water. Since the de-stone operation volume of grain rice is large, the corresponding drying volume of grain rice is also large. If it is not dried in time, the grain rice is easily damaged by moisture, which not only increases the workload, but also reduces the overall work efficiency because it is impossible to continuously load and de-stone in the process of taking out the grain rice. In addition, it is inevitable that there will be empty rice grains in the grain rice. Since these empty rice grains have a smaller density than grain rice, they will also float on the water surface and be taken out together with the grain rice. It is inconvenient to separate them from the grain rice, and there is a problem of poor screening effect. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the prior art, the utility model provides a stone removing machine for grain processing, which can effectively solve the problems of low working efficiency and poor screening effect of the prior art.

[0006] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] The utility model provides a stone removing machine for grain processing, comprising a machine case and a discharge box installed at the bottom of the machine case and connected to the machine case, a filter assembly comprising a rotating roller rotatably installed inside the machine case, a plurality of filter plates in contact with an inner cavity of the machine case being installed on an outer roller wall of the rotating roller, a discharge assembly comprising a fan installed on an outer side wall of the discharge box, and also comprising an exhaust seat installed on an inner cavity wall of the discharge box and the inner cavity being connected to an input end of the fan.

[0008] Furthermore, a placement cavity is provided through the inner cavity on one side of the chassis away from the fan, and a stone collection box is slidably embedded in the placement cavity.

[0009] Furthermore, two fixed handles are installed on the outer side wall of the stone collection box, and a feed hopper is installed on the top of the box, which is connected with the inner cavity of the box and is opposite to the position of a plurality of filter plates.

[0010] Furthermore, the filter assembly also includes a motor which is fixedly mounted on the outer side wall of the chassis and the output end of which is fixedly connected to one end of the rotating roller.

[0011] Furthermore, the discharge assembly also includes a filtering and collecting cover detachably mounted on two opposite outer side walls of the discharge box for collecting empty rice grains.

[0012] Furthermore, a mounting frame is installed around the filtering and collecting cover, and a magnetic block that is magnetically adsorbed to the outer wall of the discharge box is embedded in one side of the mounting frame.

[0013] Furthermore, the top of the exhaust seat is designed as an arc top, and two opposite outer side walls of the exhaust seat are embedded with a filter screen to prevent rice from entering the exhaust seat.

[0014] Compared with the known prior art, the technical solution provided by the utility model has the following beneficial effects:

[0015] 1. The motor drives the multiple filter plates in the chassis to rotate continuously, filtering the grains and rice entering the chassis from the feed hopper. Grains and rice with smaller outer diameters will pass through the mesh of the filter plates and automatically fall into the discharge box by gravity, while sand and gravel with larger outer diameters will be intercepted on the surface of the filter plates. With the rotation of the filter plates, the sand and gravel will be automatically rotated and put into the sand and gravel collection bucket, which can realize continuous feeding and stone removal. In addition, since the grains and rice are not soaked, there is no need to dry them, which has the advantage of high work efficiency.

[0016] 2. The grain and rice that have been de-stoned and entered into the discharge box will be blown by the airflow on both sides of the exhaust seat, and the lightest empty rice will be blown into the filter collection covers on both sides of the discharge box. In the process of grain and rice discharge, the empty rice will be automatically screened and removed, which has the advantage of good screening effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 It is a schematic diagram of the overall first-view structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the overall structure of the utility model from a second viewing angle;

[0020] Figure 3 This is a schematic diagram of the internal structure of the chassis of the utility model;

[0021] Figure 4 This is a schematic diagram of the internal structure of the discharge box of the utility model;

[0022] Figure 5 This is a schematic diagram of the installation structure of the filter collection cover of the utility model.

[0023] The numbers in the figure represent: 1. Chassis; 11. Discharge box; 12. Filter collection cover; 13. Placement chamber; 14. Stone collection box; 15. Fixed handle; 16. Feed hopper; 17. Mounting frame; 18. Magnetic block; 21. Motor; 22. Rotating roller; 23. Filter plate; 31. Fan; 32. Exhaust seat; 33. Filter net. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] The utility model is further described below in conjunction with embodiments.

[0026] Example 1

[0027] Reference Figure 1-5 , which is the first embodiment of the utility model, discloses a stone removing machine for grain processing, including a chassis 1 and a discharge box 11 installed at the bottom of the chassis 1 and connected to the chassis 1, a filtering component including a rotating roller 22 rotatably installed inside the chassis 1, a plurality of filter plates 23 in contact with the inner cavity of the chassis 1 are installed on the outer roller wall of the rotating roller 22, and the filter plates 23 are in contact with the inner cavity wall of the chassis 1, so that all grains entering the inner cavity of the chassis 1 are filtered by the filter plates 23, and no dead corners of filtration will occur, a discharge component including a fan 31 installed on the outer side wall of the discharge box 11, and also including an exhaust seat 32 installed on the inner cavity wall of the discharge box 11 and the inner cavity is connected to the input end of the fan 31, and the design purpose of the exhaust seat 32 is to ensure that the grain in the discharge box 11 is blown more evenly and stably, thereby ensuring that the empty rice grains can be fully separated from the grain.

[0028] Example 2

[0029] Reference Figure 1-5 , which is the second embodiment of the utility model. This embodiment is different from the first embodiment in that: a placement cavity 13 is provided through the inner cavity on one side of the chassis 1 away from the fan 31, and a stone collection box 14 is slidably embedded in the placement cavity 13. Two fixed handles 15 are installed on the outer wall of the stone collection box 14. The stone collection box 14 is taken out from the placement cavity 13 regularly by the fixed handles 15, and the removed sand and gravel are uniformly collected and processed. A feed hopper 16 connected to the inner cavity of the chassis 1 and opposite to a plurality of filter plates 23 is installed on the top of the chassis 1 to facilitate grain feeding. The filter assembly also includes a motor 21 fixedly installed on the outer wall of the chassis 1, and the output end is fixedly connected to one end of the rotating roller 22. The discharge assembly also includes a detachable discharge hopper 16 installed on the discharge hopper 16. The two opposite outer walls of the material box 11 are used for collecting the filter collection cover 12 for collecting the empty rice. The filter collection cover 12 is a filter cover with a mesh structure. The mesh size is smaller than the mesh size of the filter 33 to ensure that the empty rice can be collected and prevent the empty rice from being blown away and flying around. A mounting frame 17 is installed around the filter collection cover 12. A magnetic block 18 that is magnetically adsorbed to the outer wall of the discharge box 11 is embedded on one side of the mounting frame 17 to facilitate the quick loading and unloading of the mounting frame 17, that is, the filter collection cover 12. The top of the exhaust seat 32 is designed as an arc top to prevent food from remaining on the top of the exhaust seat 32 and reduce dead corners for food discharge. The two opposite outer walls of the exhaust seat 32 are embedded with a filter 33 that prevents rice from entering the exhaust seat 32.

[0030] The remaining structures are the same as those of Example 1.

[0031] The workflow of this utility model is as follows:

[0032] First, the motor 21 is started to drive the rotating roller 22 to rotate, and then drive the plurality of filter plates 23 to rotate. At the same time, the grain is poured from the feed hopper 16 into the inner cavity of the chassis 1. The grain entering the chassis 1 will contact the plurality of rotating filter plates 23. The grain with an outer diameter smaller than the mesh of the filter plate 23 will pass through the mesh of the filter plate 23 and fall into the discharge box 11 by gravity, while the grain with an outer diameter larger than the mesh of the filter plate 23 will be intercepted on the surface of the filter plate 23 and thrown into the stone collection box 14 in the placement cavity 13 of the chassis 1 by the centrifugal force as the filter plate 23 rotates, and the collection of the screened sand and gravel is automatically completed.

[0033] Secondly, start the fan 31, and blow the external air into the discharge box 11 through the exhaust seat 32. The air flow is discharged from both sides of the exhaust seat 32, and the grain and rice from both sides of the exhaust seat 32 are blown. The lightest empty rice will be blown into the filter collection cover 12 on both sides of the discharge box 11. In the process of grain and rice discharge, the empty rice will be automatically screened and removed, which has the advantage of good screening effect.

[0034] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some of the technical features therein by equivalents. These modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A stone removing machine for grain processing, comprising a machine case (1) and a discharge box (11) mounted at the bottom of the machine case (1) and connected to the machine case (1), characterized in that: Also includes: The filter assembly comprises a rotating roller (22) rotatably mounted inside a housing (1), wherein a plurality of filter plates (23) in contact with the inner cavity of the housing (1) are mounted on the outer roller wall of the rotating roller (22); The discharge assembly comprises a fan (31) installed on the outer wall of the discharge box (11), and also comprises an exhaust seat (32) installed on the inner wall of the discharge box (11) and the inner cavity is connected to the input end of the fan (31).

2. A grain processing stone removing machine according to claim 1, characterized in that: A placement cavity (13) is provided through the inner cavity of the chassis (1) at a side away from the fan (31), and a stone collection box (14) is slidably embedded in the placement cavity (13).

3. A grain processing stone removing machine according to claim 2, characterized in that: Two fixed handles (15) are installed on the outer side wall of the stone collection box (14), and a feed hopper (16) is installed on the top of the box (1) and is connected to the inner cavity of the box (1) and is opposite to the plurality of filter plates (23).

4. A grain processing stone removing machine according to claim 1, characterized in that: The filter assembly also includes a motor (21) which is fixedly mounted on the outer side wall of the chassis (1) and has an output end fixedly connected to one end of a rotating roller (22).

5. A grain processing stone removing machine according to claim 1, characterized in that: The discharge assembly also includes a filtering and collecting cover (12) detachably mounted on two opposite outer side walls of the discharge box (11) for collecting empty rice grains.

6. A grain processing stone removing machine according to claim 5, characterized in that: A mounting frame (17) is installed around the filtering and collecting cover (12), and a magnetic block (18) that is magnetically attracted to the outer wall of the discharge box (11) is embedded and installed on one side of the mounting frame (17).

7. A grain processing stone removing machine according to claim 1, characterized in that: The top of the exhaust seat (32) is designed as a circular arc top, and two opposite outer side walls of the exhaust seat (32) are embedded with a filter screen (33) for preventing rice from entering the exhaust seat (32).

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