Specific-gravity stoner for rice processing

Abstract

The utility model relates to a specific gravity stoner for rice processing, which comprises a filter bin, a chamber for rice screening is arranged in the filter bin, a screening surface is obliquely arranged in the chamber, an elastic support frame is arranged at the bottom of the filter bin and elastically supports the filter bin, a vibration machine is arranged on the filter bin, and a vibrating screen is arranged on the vibration machine. A stone discharging opening and a clean rice outlet are oppositely formed in the filtering bin; the air blowing unit is arranged at the bottom of the filtering bin, communicates with the cavity and is used for blowing air to the screen surface; a feeding unit; through cooperation of a spiral conveyor and a drum screen in the feeding unit, preliminary screening and dust impurity removal are carried out in advance while feeding is carried out, dust in slag discharging gaps and dust generated during feeding are adsorbed in time through an adsorption pipeline, the dust is collected into a collection part, the situation that the dust drifts around is effectively avoided, and the working environment is improved; and the body health of operators is ensured.

Description

Technical Field

[0001] This application relates to the field of rice impurity removal technology, and in particular to a gravity destoner for rice processing. Background Technology

[0002] In the rice processing industry, the destoning process is one of the key steps to ensure rice quality. Gravity destoners, a commonly used destoning device, work on the principle of separating rice from stone impurities based on their differences in specific gravity and aerodynamic properties. This is achieved through vibration screening and airflow.

[0003] However, in practical applications, existing air-blowing rice destoners often contain a certain amount of dust and impurities during the screening and destoning process of rice raw materials. This dust easily disperses due to the airflow. On one hand, the dispersed dust pollutes the entire processing workshop, worsening the working environment and increasing the difficulty and cost of cleaning and maintenance. On the other hand, if the dust is inhaled by operators, it can cause respiratory illnesses and harm their health.

[0004] To address this issue, some existing technologies attempt to reduce dust leakage by installing simple dust removal devices inside the destoner. However, these measures are often ineffective and fail to fundamentally solve the dust pollution problem. For example, some destoners only have simple dust baffles or bag filters at the discharge port. These devices are not effective at intercepting already raised dust, and their dust removal efficiency gradually decreases with prolonged use.

[0005] To address the above problems, a specific gravity destoner for rice processing is now designed. Utility Model Content

[0006] This application provides a specific gravity destoner for rice processing to solve the problem in the practical application of existing air-blowing rice specific gravity destoners in related technologies, where a certain amount of dust impurities are mixed in with the rice raw material, and these dust particles are easily scattered by the airflow.

[0007] In the first aspect, a gravity destoner for rice processing is provided, comprising:

[0008] The filter chamber has a cavity for rice sieving inside. The cavity has an inclined sieve surface. The bottom of the filter chamber is provided with an elastic support frame that provides elastic support to the filter chamber. The filter chamber is equipped with a vibrator. The filter chamber has a stone discharge port and a clean rice outlet.

[0009] An air blowing unit, which is located at the bottom of the filter chamber and communicates with the chamber, is used to blow air onto the screen surface;

[0010] The feeding unit includes a feeding pipeline installed on the filter chamber, a drum screen installed inside the feeding pipeline, a screw conveyor installed inside the drum screen, a slag discharge gap between the drum screen and the feeding pipeline, a feed hopper and a feeding pipe installed opposite to each other on the feeding pipeline, and the feeding pipe communicating with the chamber.

[0011] The dust collection unit includes an adsorption pipe installed on the feeding pipeline and a collection section connected to the adsorption pipe. The adsorption pipe is used to adsorb dust in the slag discharge gaps, and the collection section is used to collect the dust.

[0012] In some embodiments, both the stone discharge port and the clean rice outlet are connected to the chamber.

[0013] The clean rice outlet is located at the end of the sieve that is inclined downwards, and the stone discharge outlet is located at the end of the sieve that is inclined upwards.

[0014] In some embodiments, a stone-gathering zone is provided at one end of the screen surface, and a V-shaped guide strip is provided on the stone-gathering zone. The V-shaped guide strip is used to guide stone impurities to be discharged through the stone discharge port.

[0015] In some embodiments, the elastic support frame includes multiple fixed seats disposed opposite each other on the filter chamber, the bottom of the fixed seats being provided with multiple sets of springs, and a support column being provided between the bottoms of adjacent sets of springs.

[0016] In some embodiments, the air blowing unit includes an air supply chamber disposed at the bottom of the filter chamber, the air supply chamber being connected to the chamber, an air inlet being disposed at the bottom of the air supply chamber, a telescopic pipe being disposed at the bottom end of the air inlet, and an air supply pipe being connected at the other end of the telescopic pipe, the air supply pipe being connected to an external air supply mechanism.

[0017] In some embodiments, the feed hopper is located at the top of one end of the feed pipe, and the feed pipe is located at the bottom of the other end of the feed pipe;

[0018] The feeding pipeline is cylindrical and has a cavity inside for conveying rice.

[0019] In some embodiments, the drum screen is cylindrical with multiple through holes for dust filtration, the inner side of the drum screen has a filter chamber for rice filtration, the two ends of the drum screen are open, and the two ends of the drum screen are attached to the two ends of the feeding pipe.

[0020] The bottom end of the feed hopper passes through the feeding pipe and is connected to the internal filter chamber of the drum screen, and the top end of the feeding pipe passes through the drum screen and is connected to the filter chamber.

[0021] In some embodiments, the collection unit includes a box mounted on a support column, and an inclined filter screen is disposed inside the box. One end of the box is open, and the end of the filter screen near the opening of the box is connected to the inner bottom wall of the box. The other end of the filter screen is connected to the side wall of the box. The filter screen divides the box to form a filtration chamber above the filter screen and an air extraction chamber below the filter screen.

[0022] The opening of the box is hinged with a side door;

[0023] An exhaust pipe is provided on the chamber, and the other end of the exhaust pipe is connected to the housing, which is used to send the gas blown into the chamber by the air blowing unit into the housing.

[0024] In some embodiments, the adsorption pipeline includes multiple suction pipes disposed on the feeding pipeline, one end of the suction pipe being connected to the slag discharge gap and the other end being connected to the box body;

[0025] The adsorption pipeline also includes a fan installed at the bottom of the box, and the air inlet of the fan is connected to the air extraction chamber of the box.

[0026] In some embodiments, the screw conveyor includes a screw conveying rod rotatably disposed inside the drum screen, and a drive motor disposed at one end of the feeding pipeline, the output shaft of the drive motor being connected to the screw conveying rod.

[0027] This application provides a gravity destoner for rice processing. By using a screw conveyor and a drum screen in the feeding unit, preliminary screening is performed while feeding, removing dust and impurities in advance. The dust generated in the slag discharge gap and during feeding is promptly adsorbed by the adsorption pipe and collected in the collection section, effectively preventing dust from spreading everywhere, improving the working environment, and protecting the health of operators.

[0028] The auxiliary blowing function of the blowing unit enhances the separation effect of airflow on rice and impurities, helps to break the adhesion between impurities and rice, making it easier to separate rice and impurities, thereby improving screening efficiency, shortening screening time, and increasing production efficiency.

[0029] A spring-loaded support frame at the bottom of the filter chamber provides elastic support, which, combined with the vibration generated by the vibrator, makes the filter chamber operate more stably and reduces the impact of noise and vibration on the surrounding environment. At the same time, this structure also helps improve screening efficiency and extend the service life of the equipment. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 A three-dimensional structural illustration provided for an embodiment of this application. Figure 1 ;

[0032] Figure 2 A three-dimensional structural illustration provided for an embodiment of this application. Figure 2 ;

[0033] Figure 3 A rear cross-sectional view provided for an embodiment of this application;

[0034] Figure 4 This is a front sectional view of the feeding pipeline provided in an embodiment of this application;

[0035] Figure 5 A diagram of the collection section provided for an embodiment of this application;

[0036] Figure 6 A three-dimensional schematic diagram of the connection structure between the sieve surface and the filter chamber provided in the embodiments of this application.

[0037] In the diagram: 1. Filter chamber; 2. Chamber; 3. Screen surface; 4. Elastic support frame; 5. Vibrator; 6. Air blowing unit; 7. Feeding unit; 8. Dust collection unit; 9. Exhaust pipe; 11. Stone discharge port; 12. Clean rice outlet; 31. Stone accumulation area; 32. V-shaped guide strip; 41. Fixed seat; 42. Spring; 43. Support column; 61. Air supply chamber; 62. Air inlet; 63. Telescopic pipe; 64. Air supply pipe; 71. Feeding pipeline; 72. Drum screen; 73. Screw conveyor; 74. Slag discharge gap; 81. Adsorption pipe; 82. Collection section; 811. Suction pipe; 812. Fan; 821. Box body; 822. Filter screen two. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0039] This application provides a specific gravity destoner for rice processing, which can solve the problem in the practical application of existing air-blowing rice specific gravity destoners in related technologies where a certain amount of dust impurities are mixed in with the rice raw material, and these dust particles are easily scattered by the airflow.

[0040] Please see Figures 1-3 A specific gravity destoner for rice processing includes: a filter chamber 1, which has a cavity 2 for rice sieving inside, a screen surface 3 inclinedly arranged inside the cavity 2, an elastic support frame 4 at the bottom of the filter chamber 1 for elastic support of the filter chamber 1, a vibrator 5 on the filter chamber 1, and a stone discharge port 11 and a clean rice outlet 12 arranged opposite to each other on the filter chamber 1; an air blowing unit 6, which is located at the bottom of the filter chamber 1 and communicates with the cavity 2, for blowing air onto the screen surface 3; and a feeding unit 7, which includes a feeding device on the filter chamber 1. The feeding pipeline 71 has a drum screen 72 inside, and a screw conveyor 73 inside the drum screen 72. There is a slag discharge gap 74 between the drum screen 72 and the feeding pipeline 71. A feed hopper and a feed pipe are arranged opposite to each other on the feeding pipeline 71. The feed pipe is connected to the chamber 2. The dust collection unit 8 includes an adsorption pipe 81 arranged on the feeding pipeline 71 and a collection part 82 connected to the adsorption pipe 81. The adsorption pipe 81 is used to adsorb dust in the slag discharge gap 74, and the collection part 82 is used to collect dust.

[0041] Rice raw material is fed into the feeding pipe 71 from the feed hopper of the feeding unit 7. The screw conveyor 73 in the feeding pipe 71 rotates under power drive, driving the rice raw material forward in the drum screen 72.

[0042] During the conveying process, the drum screen 72 plays a crucial role in the initial screening. Due to the differences in particle size of impurities, dust impurities are discharged through the slag discharge gap 74 between the drum screen 72 and the feeding pipe 71, thereby achieving the initial separation of rice from some impurities.

[0043] Meanwhile, the adsorption pipe 81 is connected to the slag discharge gap 74. Dust generated during the feeding process, including dust and impurities discharged from the slag discharge gap 74 and dust raised in the feeding pipe 71, will be adsorbed by the adsorption pipe 81 in a timely manner. The adsorbed dust is transported along the adsorption pipe 81 to the collection section 82 for collection, effectively preventing dust from spreading around in the working environment and improving the air quality of the working environment. The rice after dust removal enters the chamber 2 of the filter bin 1 through the feeding pipe.

[0044] The rice entering chamber 2 falls onto the inclined screen surface 3. The elastic support frame 4 at the bottom of the filter chamber 1 provides elastic support for the filter chamber 1, enabling the filter chamber 1 to generate stable vibration under the action of the vibrator 5. During the vibration, the rice rolls downward along the screen surface 3. Due to the difference in specific gravity between the rice and the stone impurities, under the combined action of vibration and gravity, the stone impurities with a larger specific gravity experience a greater inertial force and will move upward along the screen surface 3, eventually being discharged from the stone discharge port 11; while the rice continues to roll downward along the screen surface 3 and is discharged from the clean rice outlet 12, achieving effective separation of rice and stone impurities.

[0045] Meanwhile, the air blowing unit 6 is located at the bottom of the filter chamber 1 and communicates with the chamber 2. During the screening process, the air blowing unit 6 blows air onto the screen surface 3, and the airflow further enhances the separation effect between the rice and the stones. The airflow can blow some lighter impurities away from the rice, and also helps to improve screening efficiency.

[0046] By cooperating with the screw conveyor 73 and the drum screen 72 in the feeding unit 7, preliminary screening is carried out while feeding, and dust and impurities are removed in advance. The dust in the slag discharge gap 74 and the dust generated during feeding are promptly adsorbed by the adsorption pipe 81 and collected in the collection section 82, which effectively prevents dust from spreading everywhere, improves the working environment, and protects the health of the operators.

[0047] The auxiliary blowing function of the blowing unit 6 enhances the separation effect of airflow on rice and impurities, helps to break the adhesion between impurities and rice, makes rice and impurities easier to separate, thereby improving screening efficiency, shortening screening time, and improving production efficiency.

[0048] A spring support frame 4 is installed at the bottom of the filter chamber 1 for elastic support. Combined with the vibration generated by the vibrator 5, this makes the operation of the filter chamber 1 more stable and reduces the impact of noise and vibration on the surrounding environment during equipment operation. At the same time, this structure also helps to improve screening efficiency and extend the service life of the equipment.

[0049] The entire destoning machine operates with a high degree of automation. Feeding, screening, destoning, and dust adsorption processes work together to reduce manual intervention, improve production efficiency, and lower labor intensity, making it suitable for large-scale rice processing.

[0050] like Figure 1 and Figure 3 As shown, in this embodiment, the stone discharge port 11 and the clean rice outlet 12 are both connected to the chamber 2; the clean rice outlet 12 is located at the downward inclined end of the sieve surface 3, and the stone discharge port 11 is located at the upward inclined end of the sieve surface 3.

[0051] As the screening process continues, impurities such as stones gradually move to the upward-sloping end of the screen surface 3 and are eventually discharged from the stone discharge port 11 connected to the chamber 2, thus achieving the initial separation of rice from impurities such as stones.

[0052] After being sieved, the rice continues to roll downwards along the sieve surface 3, reaching the clean rice outlet 12 located at the downward-sloping end of the sieve surface 3, and is then discharged from the clean rice outlet 12.

[0053] The reasonable positioning of the stone discharge port 11 and the clean rice outlet 12 makes full use of the tilt angle and vibration of the screen surface 3. Under the combined action of inertial force and the tilt of the screen surface 3, impurities such as stones can move more smoothly upward along the screen surface 3 to the stone discharge port 11 for discharge, reducing the residual time of impurities in the rice and improving the screening efficiency.

[0054] like Figure 3 and Figure 6 As shown, it should be noted that in this embodiment, one end of the screen surface 3 is provided with a stone-gathering area 31, and a V-shaped guide strip 32 is provided on the stone-gathering area 31. The V-shaped guide strip 32 is used to guide stone impurities to be sent out through the stone discharge port 11.

[0055] As the screening process continues, stone and other impurities gradually move to the stone-gathering zone 31 at the upward-sloping end of the screen surface 3. The V-shaped guide bar 32 guides the stone and impurities to move along a specific path. Under the combined action of vibration and gravity, the stone and impurities move along the V-shaped guide bar 32 toward the stone discharge port 11 and are discharged from the stone discharge port 11.

[0056] The arrangement of the stone-gathering zone 31 and the V-shaped guide strip 32 allows stone impurities to be more accurately gathered and guided to the stone discharge port 11 for discharge, reducing the residual time of impurities in the rice and improving screening efficiency.

[0057] like Figure 1 and Figure 2 As shown, in one embodiment, the elastic support frame 4 includes a plurality of fixed seats 41 disposed opposite to each other on the filter chamber 1, the bottom of the fixed seats 41 is provided with a plurality of springs 42, and a support column 43 is provided between the bottoms of adjacent plurality of springs 42.

[0058] The fixed base 41 serves as the connection point between the elastic support frame 4 and the filter chamber 1, providing a stable support foundation for the entire filter chamber 1.

[0059] When the vibrator 5 starts working, the filter chamber 1 will vibrate. At this time, the spring 42 will be subjected to the pressure and tension generated by the vibration of the filter chamber 1, and will undergo elastic deformation. The elasticity of the spring 42 can effectively buffer the vibration of the filter chamber 1, reduce the impact of vibration on surrounding equipment and structures, and also make the vibration of the filter chamber 1 more stable and uniform. The support column 43 serves to connect and support the spring 42, which can enhance the overall structural stability of the elastic support frame 4.

[0060] like Figure 3 As shown, specifically, the air blowing unit 6 in this embodiment includes an air supply chamber 61 disposed at the bottom of the filter chamber 1. The air supply chamber 61 is connected to the chamber 2. An air inlet 62 is disposed at the bottom of the air supply chamber 61. A telescopic pipe 63 is disposed at the bottom end of the air inlet 62. The other end of the telescopic pipe 63 is connected to an air supply pipe 64. The air supply pipe 64 is connected to an external air supply mechanism.

[0061] An air inlet 62 is provided at the bottom of the air supply chamber 61. The airflow generated by the external air supply mechanism is transmitted to the air inlet 62 through the air supply pipe 64 and the telescopic pipe 63, and then enters the air supply chamber 61. The air inlet 62 guides the airflow into the air supply chamber 61, ensuring a stable airflow. The telescopic pipe 63 has a certain degree of flexibility, and its length can be adjusted according to actual needs, thereby adapting to different installation environments and equipment layout requirements.

[0062] The airflow entering chamber 2 creates a certain airflow field inside filter chamber 1. During the rice sieving process, the airflow exerts a force on the rice and impurities such as stones. For rice, due to its relatively low specific gravity, the airflow can gently lift it, allowing it to bounce and tumble better on the screen surface 3, increasing the contact opportunity between the rice and the screen surface 3 and improving sieving efficiency. For impurities such as stones with a higher specific gravity, the effect of the airflow is relatively small; they continue to move along the screen surface 3 under the action of vibration and gravity, and are eventually discharged from the stone discharge port 11.

[0063] like Figure 3 and Figure 4 As shown, in this embodiment, the feeding hopper is located at the top of one end of the feeding pipe 71, and the feeding pipe is located at the bottom of the other end of the feeding pipe 71; the feeding pipe 71 is cylindrical and has a cavity inside for conveying rice.

[0064] The feeding hopper is located at the top of one end of the feeding pipe 71, allowing the rice to flow naturally into the feeding pipe 71 by its own gravity.

[0065] The feeding pipe is located at the bottom of the other end of the feeding pipe 71, ensuring that the rice conveyed through the feeding pipe 71 can be smoothly discharged from the feeding pipe and transported into the chamber 2.

[0066] The feeding pipe 71 is cylindrical and has a cavity inside for conveying rice. The cavity provides sufficient conveying space for the rice, ensuring that the rice can be conveyed at a certain flow rate and speed.

[0067] like Figure 4 As shown, in one embodiment, the drum screen 72 is cylindrical and has multiple through holes for dust filtration. The inner side of the drum screen 72 has a filter chamber for rice filtration. The two ends of the drum screen 72 are open and are attached to the two ends of the feeding pipe 71. The bottom end of the feed hopper passes through the feeding pipe 71 and communicates with the internal filter chamber of the drum screen 72.

[0068] Rice is fed into the feed hopper, and the bottom of the feed hopper is connected to the feed pipe 71 and the internal filter chamber of the drum screen 72. The rice enters the filter chamber of the drum screen 72 directly through the feed hopper by its own gravity.

[0069] The drum screen 72 is cylindrical with multiple through-holes for dust filtration and an inner filter chamber for rice filtration. When rice enters the filter chamber, the screw conveyor 73 continuously tumbles and moves the rice forward. During this process, fine impurities such as dust in the rice are separated out through the through-holes on the drum screen 72. The separated dust and fine impurities then enter the slag discharge gap 74 between the drum screen 72 and the feeding pipe 71 through the through-holes.

[0070] After being screened, the rice is fed into chamber 2 through the feeding pipe connected to the bottom of the drum screen 72.

[0071] like Figure 5 As shown, in one embodiment, the collection unit 82 includes a box 821 mounted on a support column 43. An inclined filter screen 822 is disposed inside the box 821. One end of the box 821 is open. The end of the filter screen 822 near the opening of the box 821 is connected to the inner bottom wall of the box 821, and the other end of the filter screen 822 is connected to the side wall of the box 821. The filter screen 822 separates the box 821 to form a filter chamber above the filter screen 822 and an air extraction chamber below it. A side door is hinged to the opening of the box 821. An exhaust pipe 9 is disposed on the chamber 2, and the other end of the exhaust pipe 9 communicates with the box 821 to deliver gas blown into the chamber 2 by the air blowing unit 6 into the box 821.

[0072] After the blowing unit 6 blows the gas into the chamber 2, the gas carries the dust and other impurities in the chamber 2 into the housing 821 through the exhaust pipe 9.

[0073] The housing 821 contains an inclined filter screen 822, which divides the housing 821 into a filtration chamber above the filter screen and an extraction chamber below. When gas enters the housing 821, it first enters the filtration chamber, where dust and other impurities carried by the gas are intercepted by the filter screen 822, while the clean gas passes through the filter screen 822 into the extraction chamber. The dust and other impurities intercepted by the filter screen 822 slide down the inclined filter screen 822 under the influence of gravity and gas flow, eventually accumulating at the end where the filter screen 822 connects to the bottom wall of the housing 821.

[0074] When the amount of impurities accumulated under filter screen 822 reaches a certain level, the side door can be opened to clean out the accumulated impurities, so as to ensure the normal operation of the collection section.

[0075] like Figure 4 and Figure 5 As shown, in one embodiment, the adsorption pipe 81 includes multiple suction pipes 811 disposed on the feeding pipe 71, one end of the suction pipe 811 being connected to the slag discharge gap 74 and the other end being connected to the box body 821; the adsorption pipe 81 also includes a fan 812 disposed at the bottom of the box body 821, the air inlet of the fan 812 being connected to the air extraction chamber of the box body 821.

[0076] One end of the suction pipe 811 is connected to the slag discharge gap 74. During equipment operation, an airflow containing dust and other impurities is generated at the slag discharge gap 74. At this time, the blower 812 starts working, creating a negative pressure environment in the suction chamber of the housing 821. Due to the negative pressure in the suction chamber, the airflow at the slag discharge gap 74 is drawn in along the suction pipe 811. The suction pipe 811 guides the airflow containing waste slag into the housing 821, and the airflow carries the waste slag into the housing 821.

[0077] When the airflow containing waste residue enters the housing 821, it is intercepted by the waste residue filter screen 822, while the gas passes through the filter screen into the extraction chamber. The intercepted waste residue gradually accumulates at the bottom of the housing 821 under the action of gravity, facilitating subsequent cleaning.

[0078] like Figure 1 and Figure 4 As shown, in one embodiment, the screw conveyor 73 includes a screw conveying rod rotatably disposed inside the drum screen 72, and a drive motor disposed at one end of the feeding pipe 71, the output shaft of the drive motor being connected to the screw conveying rod.

[0079] Material enters the drum screen 72 through the feeding pipe 71. At this time, the drive motor starts working, driving the screw conveyor to rotate. As the screw conveyor rotates, the screw blades continuously push the material forward, causing the material to move axially within the drum screen 72. As the material moves, dust that meets the particle size requirements falls through the screen holes of the drum screen 72 and enters the subsequent collection or processing stage; while larger particles are continued to be pushed by the screw conveyor, moving along the axial direction of the drum screen 72.

[0080] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0081] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0082] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A specific gravity destoner for rice processing, characterized in that, include: The filter chamber (1) has a cavity (2) for rice sieving inside. The cavity (2) has a sieve surface (3) arranged at an inclination. The bottom of the filter chamber (1) is provided with an elastic support frame (4). The elastic support frame (4) provides elastic support to the filter chamber (1). The filter chamber (1) is provided with a vibrator (5). The filter chamber (1) has a stone discharge port (11) and a clean rice outlet (12) arranged opposite to each other. An air blowing unit (6) is disposed at the bottom of the filter chamber (1) and communicates with the chamber (2) for blowing air onto the screen surface (3); The feeding unit (7) includes a feeding pipe (71) installed on the filter chamber (1), a drum screen (72) is installed inside the feeding pipe (71), a screw conveyor (73) is installed inside the drum screen (72), a slag discharge gap (74) is provided between the drum screen (72) and the feeding pipe (71), a feed hopper and a feeding pipe are arranged opposite to each other on the feeding pipe (71), and the feeding pipe is connected to the chamber (2); The dust collection unit (8) includes an adsorption pipe (81) disposed on the feeding pipe (71) and a collection part (82) connected to the adsorption pipe (81). The adsorption pipe (81) is used to adsorb dust in the slag discharge gap (74), and the collection part (82) is used to collect dust.

2. The rice processing gravity destoner as described in claim 1, characterized in that: The stone discharge port (11) and the clean rice outlet (12) are both connected to the chamber (2). The clean rice outlet (12) is located at the downward inclined end of the sieve surface (3), and the stone discharge outlet (11) is located at the upward inclined end of the sieve surface (3).

3. The rice processing gravity destoner as described in claim 2, characterized in that: One end of the screen surface (3) is provided with a stone-gathering area (31), and a V-shaped guide strip (32) is provided on the stone-gathering area (31). The V-shaped guide strip (32) is used to guide stone impurities to be sent out through the stone discharge port (11).

4. The rice processing gravity destoner as described in claim 1, characterized in that: The elastic support frame (4) includes multiple fixed seats (41) arranged opposite to each other on the filter chamber (1). Multiple sets of springs (42) are provided at the bottom of the fixed seats (41), and a support column (43) is provided between the bottoms of adjacent sets of springs (42).

5. A specific gravity destoner for rice processing as described in claim 1, characterized in that: The air blowing unit (6) includes an air supply chamber (61) located at the bottom of the filter chamber (1). The air supply chamber (61) is connected to the chamber (2). An air inlet (62) is provided at the bottom of the air supply chamber (61). A telescopic pipe (63) is provided at the bottom end of the air inlet (62). The other end of the telescopic pipe (63) is connected to an air supply pipe (64). The air supply pipe (64) is connected to an external air supply mechanism.

6. A specific gravity destoner for rice processing as described in claim 1, characterized in that: The feed hopper is located at the top of one end of the feed pipe (71), and the feed pipe is located at the bottom of the other end of the feed pipe (71); The feeding pipe (71) is cylindrical and has a cavity inside for conveying rice.

7. A specific gravity destoner for rice processing as described in claim 6, characterized in that: The drum screen (72) is cylindrical and has multiple through holes for dust filtration. The inner side of the drum screen (72) has a filter chamber for rice filtration. The two ends of the drum screen (72) are open and are attached to the two ends of the feeding pipe (71). The bottom end of the feed hopper passes through the feed pipe (71) and is connected to the internal filter chamber of the drum screen (72), and the top end of the feed pipe passes through the drum screen (72) and is connected to the filter chamber.

8. A specific gravity destoner for rice processing as described in claim 4, characterized in that: The collection unit (82) includes a box (821) mounted on a support column (43). Inside the box (821) is a second filter screen (822) arranged at an incline. One end of the box (821) is open. The end of the second filter screen (822) near the opening of the box (821) is connected to the inner bottom wall of the box (821). The other end of the second filter screen (822) is connected to the side wall of the box (821). The second filter screen (822) divides the box (821) to form a filter chamber above the second filter screen (822) and an air extraction chamber below it. The opening of the box (821) is hinged with a side door; An exhaust pipe (9) is provided on the chamber (2), and the other end of the exhaust pipe (9) is connected to the box body (821) to send the gas blown into the chamber (2) by the air blowing unit (6) into the box body (821).

9. A specific gravity destoner for rice processing as described in claim 8, characterized in that: The adsorption pipe (81) includes multiple suction pipes (811) installed on the feeding pipe (71). One end of the suction pipe (811) is connected to the slag discharge gap (74), and the other end is connected to the box body (821). The adsorption pipe (81) also includes a fan (812) installed at the bottom of the box (821), and the air inlet of the fan (812) is connected to the air extraction chamber of the box (821).

10. A specific gravity destoner for rice processing as described in claim 1, characterized in that: The screw conveyor (73) includes a screw conveying rod rotatably disposed inside the drum screen (72) and a drive motor disposed at one end of the feeding pipe (71), the output shaft of the drive motor being connected to the screw conveying rod.

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