Rice hull cleaning system and process thereof

Abstract

The invention relates to a rice hull cleaning system and a process thereof. The rice hull cleaning system comprises a rotary vibration sieve, a crusher, a rice hull powder cleaning sieve and a vertical rice hull grain extractor, the rotary vibration sieve is provided with a large impurity discharge port, a fine impurity discharge port and a rice discharge port; the fine impurity discharging opening is connected with a feeding opening of the pulverizer, a discharging opening of the pulverizer is connected with a feeding opening of the bran powder cleaning sieve, and a discharging opening of the bran powder cleaning sieve is connected with a feeding opening of the bran powder bin; the rice discharging hole is connected with a feeding hole of the vertical rice hull grain extractor; the vertical rice hull grain extractor is further provided with a rice grain discharging port and a rice hull discharging port, the rice grain discharging port is connected with a feeding port of the rice grain bin, the rice hull discharging port is connected with a feeding port of the rice hull bin, and a discharging port of the rice hull bin is connected with a feeding port of the finished rice hull packaging bin. Rice grains are extracted from rice husks to serve as chicken feed, fine impurities in the rice husks are extracted and smashed to serve as pig feed, the quality of the rice husks is guaranteed, meanwhile, the by-product recycling efficiency is improved, and the product utilization rate is increased.

Description

Technical Field

[0001] The invention relates to the technical field of rice husk cleaning, and in particular to a rice husk cleaning system and a process thereof. Background Art

[0002] In the past, rice husks were mostly crushed and used as feed. Nowadays, the demand for rice husks from wineries has increased, and the quality requirements for rice husks are getting higher and higher. Wineries need a large amount of rice husks for brewing wine. In order to ensure clean rice husks, the purchased rice husks need to be cleaned. Summary of the invention

[0003] Based on the above description, the present invention provides a rice husk cleaning system and process, which extracts rice grains from the husk as chicken feed, and extracts fine impurities from the husk and grinds them for use as pig feed, thereby ensuring the quality of the rice husk while improving the efficiency of by-product recovery and increasing the utilization rate of the product.

[0004] The technical solution of the present invention to solve the above technical problems is as follows: a rice husk cleaning system, including a rotary vibrating screen, a crusher, a bran powder cleaning screen, a bran powder bin, a vertical rice husk grain lifter, a rice grain bin, a rice husk bin, and a finished rice husk packaging bin;

[0005] The rotary vibrating screen has a large impurity discharge port, a fine impurity discharge port and a rice discharge port; the fine impurity discharge port is connected to the feed port of the crusher, the crusher discharge port is connected to the feed port of the bran powder cleaning screen, the bran powder cleaning screen discharge port is connected to the feed port of the bran powder bin; the rice discharge port is connected to the feed port of the vertical rice husk grain lifter;

[0006] The vertical rice husk grain lifter also has a rice grain discharge port and a rice husk discharge port, the rice grain discharge port is connected to the feed port of the rice grain silo, the rice husk discharge port is connected to the feed port of the rice husk silo, and the discharge port of the rice husk silo is connected to the feed port of the finished rice husk packaging silo.

[0007] Based on the above technical solution, the present invention can also be improved as follows.

[0008] Furthermore, the feed port of the rotary vibrating screen is connected to a feed elevator.

[0009] Furthermore, the discharge port of the bran powder cleaning screen is connected to the feed port of the bran powder bin through a discharge elevator, and the discharge port of the rice husk bin is also connected to the feed port of the finished rice husk packaging bin through a discharge elevator.

[0010] Furthermore, the fine impurities discharge port is connected to the feed port of the pulverizer through a wind net mechanism, the discharge port of the pulverizer is also connected to the feed port of the bran powder cleaning screen through a wind net mechanism, and the rice husk discharge port is also connected to the feed port of the rice husk bin through a wind net mechanism;

[0011] The wind network mechanism includes a feed pipe, a cyclone discharger, an air outlet pipe, a pulse dust collector and a wind network fan; the feed inlet of the cyclone discharger is connected to the corresponding fine impurities discharge port or the discharge port of the crusher or the rice husk discharge port through the feed pipe, the discharge port of the cyclone discharger is provided with a discharge air shutoff and is connected to the corresponding feed port of the crusher or the feed port of the bran powder cleaning screen or the feed port of the rice husk bin, the air outlet of the cyclone discharger is connected to the feed port of the pulse dust collector through the air outlet pipe, and the discharge port of the pulse dust collector is connected to the air inlet of the wind network fan; the air outlet of the wind network fan is connected to a wind network muffler.

[0012] Furthermore, it also includes a fine ash collection mechanism, which includes a fine ash discharger, a fine ash bin, a fine ash dust collector, and a fine ash fan;

[0013] The feed inlet of the fine ash discharger is connected to the ash outlet of each of the pulse dust collectors and the ash outlet of the bran powder cleaning screen, the discharge port of the fine ash discharger is provided with a fine ash air shutoff device and is connected to the fine ash bin, the air outlet of the fine ash discharger is connected to the feed inlet of the fine ash dust collector, the discharge port of the fine ash dust collector is connected to the air inlet of the fine ash fan, and the ash outlet of the fine ash dust collector is also connected to the feed inlet of the fine ash discharger; the air outlet of the fine ash fan is connected to a fine ash muffler.

[0014] Furthermore, a tubular rice husk lifter is provided on the feed pipe between the rice husk discharge port and the corresponding cyclone discharger.

[0015] Furthermore, it also includes a mixed wind network mechanism, which includes a central fan, a negative pressure wind network connected to the air inlet of the central fan, and a positive pressure wind network connected to the air outlet of the central fan.

[0016] The fine impurities discharge port is connected to the feed port of the crusher through the negative pressure wind net, and the discharge port of the crusher is also connected to the feed port of the bran powder cleaning screen through the negative pressure wind net; the rice husk discharge port is connected to the feed port of the rice husk bin through the positive pressure wind net.

[0017] Furthermore, the negative pressure wind network includes a plurality of first feed pipes, a plurality of first cyclone dischargers, a first air outlet pipe, and a first pulse dust collector; the feed inlets of the first cyclone dischargers are respectively connected to the corresponding fine impurities discharge outlet or the discharge outlet of the crusher through the corresponding first feed pipes, the discharge outlet of the first cyclone discharger is provided with a first discharge air shutoff and connected to the corresponding feed inlet of the crusher or the feed inlet of the bran powder cleaning screen, the air outlet of the first cyclone discharger is connected to the feed inlet of the first pulse dust collector through the first air outlet pipe, and the discharge outlet of the first pulse dust collector is connected to the air inlet of the central fan.

[0018] Furthermore, the positive pressure wind network includes a plurality of second feed pipes, a plurality of second cyclone dischargers, a second air outlet pipe, and a second pulse dust collector; the feed inlets of the second cyclone dischargers are connected to the air outlets of the central fan through the second feed pipes, and the corresponding rice husk discharge ports are connected to the side walls of the second feed pipes through discharge air shutoffs; the discharge port of the second cyclone discharger is provided with a second discharge air shutoff and connected to the corresponding feed port of the rice husk bin, and the air outlet of the second cyclone discharger is connected to the feed port of the second pulse dust collector through the second air outlet pipe.

[0019] The present invention also proposes a rice husk cleaning process, using any one of the rice husk cleaning systems described above, comprising the following steps:

[0020] (1) separating the raw materials into large impurities, fine impurities and rice by the rotary vibrating screen; crushing the fine impurities into bran powder by the pulverizer, and then cleaning out the fine ash in the bran powder by the bran powder cleaning screen, and then sending the bran powder into the bran powder bin as pig feed;

[0021] (2) delivering the rice to the vertical rice husk lifter, separating the rice into rice husks and rice grains by the vertical rice husk lifter; delivering the rice grains into the rice grain bin as chicken feed;

[0022] (3) The rice husks are sent to the rice husk bin for storage, and after processing, are sent to the finished rice husk packaging bin to complete the production of the finished rice husks.

[0023] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0024] 1. The present invention extracts rice grains from rice husks as chicken feed, and extracts fine impurities from the rice husks and grinds them for use as pig feed, thereby ensuring the quality of rice husks, improving the recovery efficiency of by-products, and increasing the utilization rate of products;

[0025] 2. The materials are transported through the wind network so that the transportation process is carried out in a fully enclosed environment, avoiding external dust from contaminating the materials, and reducing dust and noise pollution during the transportation process;

[0026] 3. By allowing each conveying part to share a central fan, the number of system equipment and investment can be saved. In addition, by simultaneously utilizing the suction and pressure capabilities of the central fan, the pressure of the central fan can be appropriately reduced and energy saving can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A schematic structural diagram of a rice husk cleaning system provided in Embodiment 1 of the present invention;

[0028] Figure 2This is a structural schematic diagram of a stroke net mechanism in Embodiment 1 of the present invention;

[0029] Figure 3 Schematic diagram of the structure of the fine ash collection mechanism in the first embodiment of the present invention;

[0030] Figure 4 A schematic structural diagram of a rice husk cleaning system provided in Embodiment 2 of the present invention;

[0031] Figure 5 It is a structural schematic diagram of the hybrid air network mechanism in the second embodiment of the present invention;

[0032] Figure 6 Schematic diagram of the structure of the fine ash collection mechanism in the second embodiment of the present invention;

[0033] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0034] 101. Vibrating screen; 102. Crusher; 103. Bran powder cleaning screen; 104. Bran powder bin; 105. Vertical rice husk grain lifter; 106. Rice grain bin; 107. Rice husk bin; 108. Finished rice husk packaging bin; 109. Tubular rice husk lifter; 201. Feed elevator; 202. Discharge elevator; 300. Wind net mechanism; 301. Feed pipe; 302. Cyclone discharger; 303. Discharge air shutoff; 304. Discharge pipe; 305. Pulse dust collector; 306. Wind net fan; 307. Wind net silencer; 308. Discharge air shutoff; 400. Fine ash collection mechanism; 40 1. Fine ash discharger; 402. Fine ash air shutoff; 403. Fine ash bin; 404. Fine ash dust collector; 405. Fine ash fan; 406. Fine ash silencer; 500. Mixing wind network mechanism; 510. Central fan; 520. Negative pressure wind network; 521. First feed pipe; 522. First cyclone discharger; 523. First air outlet pipe; 524. First pulse dust collector; 525. First discharge air shutoff; 530. Positive pressure wind network; 531. Second feed pipe; 532. Second cyclone discharger; 533. Second air outlet pipe; 534. Second pulse dust collector; 535. Second discharge air shutoff. DETAILED DESCRIPTION

[0035] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0037] When used herein, the singular forms "a", "an", and "said / the" may also include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include / comprise" or "have" etc. specify the presence of stated features, wholes, steps, operations, components, parts or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts or combinations thereof.

[0038] Embodiment 1

[0039] A rice husk cleaning system includes a rotary vibrating screen 101, a crusher 102, a bran powder cleaning screen 103, a bran powder bin 104, a vertical rice husk grain lifter 105, a rice grain bin 106, a rice husk bin 107, a finished rice husk packaging bin 108, a plurality of wind network mechanisms 300 and a fine ash collecting mechanism 400.

[0040] The feed port of the rotary vibrating screen 101 is connected to a feed elevator 201 , and the material to be cleaned is fed into the rotary vibrating screen 101 through the feed elevator 201 .

[0041] The rotary vibrating screen 101 has a large impurity discharge port, a fine impurity discharge port and a rice discharge port. The fine impurity discharge port is connected to the feed port of the crusher 102 through the wind net mechanism 300, and the discharge port of the crusher 102 is connected to the feed port of the bran powder cleaning screen 103 through the wind net mechanism 300. The discharge port discharge elevator 202 of the bran powder cleaning screen 103 is connected to the feed port of the bran powder bin 104.

[0042] The rice discharge port is connected to the feed port of the vertical rice husk lifting device 105 .

[0043] The vertical rice husk grain lifter 105 also has a rice grain discharge port and a rice husk discharge port. The rice grain discharge port is connected to the feed port of the rice grain silo 106, and the rice husk discharge port is connected to the feed port of the rice husk silo 107 through the wind network mechanism 300. The discharge port discharge elevator 202 of the rice husk silo 107 is connected to the feed port of the finished rice husk packaging silo 108.

[0044] Specifically, the wind network mechanism 300 includes a feed pipe 301, a cyclone discharger 302, an air outlet pipe 304, a pulse dust collector 305 and a wind network fan 306. The feed pipe 301 is connected to the corresponding discharge port and the feed port of the cyclone discharger 302, the discharge port of the cyclone discharger 302 is provided with a discharge air shutoff 303 and connected to the corresponding feed port, the air outlet of the cyclone discharger 302 is connected to the feed port of the pulse dust collector 305 through the air outlet pipe 304, and the discharge port of the pulse dust collector 305 is connected to the air inlet of the wind network fan 306. The air outlets of the wind network fans 306 are all connected to wind network silencers 307.

[0045] In addition, a tubular rice husk lifter 109 is provided on the feed pipe 301 between the rice husk discharge port and the corresponding cyclone discharger 302, and the rice grains in the rice husk are extracted again by the tubular rice husk lifter, which ensures the purity of the rice husk and improves the economic benefit.

[0046] This embodiment transports the material through the wind network, so that the transportation process is carried out in a fully enclosed environment, avoiding external dust from contaminating the material, and at the same time reducing dust and noise pollution during the transportation process.

[0047] The fine ash collection mechanism 400 includes a fine ash discharger 401, a fine ash bin 403, a fine ash dust collector 404, and a fine ash fan 405. The feed port of the fine ash discharger 401 is connected to the ash outlets of each pulse dust collector 305 and the ash outlet of the bran powder cleaning screen 103, the discharge port of the fine ash discharger 401 is provided with a fine ash air lock 402 and connected to the fine ash bin 403, the air outlet of the fine ash discharger 401 is connected to the feed port of the fine ash dust collector 404, the discharge port of the fine ash dust collector 404 is connected to the air inlet of the fine ash fan 405, and the ash outlet of the fine ash dust collector 404 is also connected to the feed port of the fine ash discharger 401. The air outlets of the fine ash fan 405 are all connected to a fine ash muffler 406. The fine ash generated during the cleaning process is collected in the fine ash bin 403 by the fine ash collection mechanism 400, which can reduce pollution to the environment.

[0048] The rice husk cleaning process of this embodiment comprises the following steps:

[0049] (1) The raw materials are separated into large impurities, fine impurities and rice by a rotary vibrating screen 101. The fine impurities are crushed into bran powder by a pulverizer 102, and the fine ash in the bran powder is cleaned out by a bran powder cleaning screen 103, and then the bran powder is sent to a bran powder bin 104 as pig feed.

[0050] (2) The rice is sent to the vertical rice husk grain lifter 105, and the rice is separated into rice husk and rice grain by the vertical rice husk grain lifter 105. The rice grain is sent to a rice grain bin as chicken feed.

[0051] (3) The rice husks are sent to the rice husk bin 107 for storage, and after processing, are sent to the finished rice husk packaging bin 108 to complete the production of the finished rice husks.

[0052] In this embodiment, rice grains are extracted from husks as chicken feed, and fine impurities in the husks are extracted and crushed for use as pig feed, thereby ensuring the quality of rice husks, improving the efficiency of by-product recovery, and increasing the utilization rate of products.

[0053] Embodiment 2

[0054] The difference between this embodiment and the first embodiment is that the rice husk cleaning system further includes a mixed wind net mechanism 500, and the mixed wind net mechanism 500 includes a central fan 510, a negative pressure wind net 520 connected to the air inlet of the central fan 510, and a positive pressure wind net 530 connected to the air outlet of the central fan 510.

[0055] The fine material outlet is connected to the feed port of the crusher 102 through the negative pressure wind net 520, and the discharge port of the crusher 102 is also connected to the feed port of the bran powder cleaning screen 103 through the negative pressure wind net 520. The rice husk outlet is connected to the feed port of the rice husk bin 107 through the positive pressure wind net 530.

[0056] Specifically, the negative pressure air network 520 includes a plurality of first feed pipes 521, a plurality of first cyclone dischargers 522, a first air outlet pipe 523, and a first pulse dust collector 524. The feed inlets of the first cyclone dischargers 522 are connected to the corresponding fine material outlets or the outlets of the crusher 102 through the corresponding first feed pipes 521, the outlets of the first cyclone dischargers 522 are provided with first discharge air locks 525 and connected to the feed inlets of the corresponding crushers 102 or the feed inlets of the bran powder cleaning screen 103, the outlets of the first cyclone dischargers 522 are connected to the feed inlets of the first pulse dust collector 524 through the first air outlet pipe 523, and the outlets of the first pulse dust collector 524 are connected to the air inlet of the central fan 510.

[0057] The positive pressure air network 530 includes a plurality of second feed pipes 531, a second cyclone discharger 532, a second air outlet pipe 533, and a second pulse dust collector 534. The feed inlets of the second cyclone discharger 532 are connected to the air outlet of the central fan 510 through the second feed pipe 531, and the corresponding rice husk discharge port is connected to the side wall of the second feed pipe 531 through the discharge air lock. The discharge port of the second cyclone discharger 532 is provided with a second discharge air lock 535 and connected to the feed port of the corresponding rice husk bin 107, and the air outlet of the second cyclone discharger 532 is connected to the feed port of the second pulse dust collector 534 through the second air outlet pipe 533.

[0058] This embodiment enables each conveying part to share one central fan 510, thereby saving the number of system equipment and investment. In addition, by simultaneously utilizing the suction and pressure capabilities of the central fan 510, the pressure of the central fan 510 can be appropriately reduced and energy saving can be achieved.

[0059] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A rice husk cleaning system, characterized in that: It includes a rotary vibrating screen, a crusher, a bran powder cleaning screen, a bran powder bin, a vertical rice husk lifter, a rice grain bin, a rice husk bin, and a finished rice husk packaging bin; The rotary vibrating screen has a large impurity discharge port, a fine impurity discharge port and a rice discharge port; the fine impurity discharge port is connected to the feed port of the crusher, the crusher discharge port is connected to the feed port of the bran powder cleaning screen, the bran powder cleaning screen discharge port is connected to the feed port of the bran powder bin; the rice discharge port is connected to the feed port of the vertical rice husk grain lifter; The vertical rice husk grain lifter also has a rice grain discharge port and a rice husk discharge port, the rice grain discharge port is connected to the feed port of the rice grain silo, the rice husk discharge port is connected to the feed port of the rice husk silo, and the discharge port of the rice husk silo is connected to the feed port of the finished rice husk packaging silo.

2. A rice husk cleaning system according to claim 1, characterized in that: The feed port of the rotary vibrating screen is connected with a feed elevator.

3. A rice husk cleaning system according to claim 1, characterized in that: The discharge port of the bran powder cleaning screen is connected to the feed port of the bran powder bin through a discharge elevator, and the discharge port of the rice husk bin is also connected to the feed port of the finished rice husk packaging bin through a discharge elevator.

4. A rice husk cleaning system according to claim 1, characterized in that: The fine impurities discharge port is connected to the feed port of the pulverizer through a wind net mechanism, the discharge port of the pulverizer is also connected to the feed port of the bran powder cleaning screen through a wind net mechanism, and the rice husk discharge port is also connected to the feed port of the rice husk bin through a wind net mechanism; The wind network mechanism includes a feed pipe, a cyclone discharger, an air outlet pipe, a pulse dust collector and a wind network fan; the feed inlet of the cyclone discharger is connected to the corresponding fine impurities discharge port or the discharge port of the crusher or the rice husk discharge port through the feed pipe, the discharge port of the cyclone discharger is provided with a discharge air shutoff and is connected to the corresponding feed port of the crusher or the feed port of the bran powder cleaning screen or the feed port of the rice husk bin, the air outlet of the cyclone discharger is connected to the feed port of the pulse dust collector through the air outlet pipe, and the discharge port of the pulse dust collector is connected to the air inlet of the wind network fan; the air outlet of the wind network fan is connected to a wind network muffler.

5. A rice husk cleaning system according to claim 4, characterized in that: It also includes a fine ash collection mechanism, which includes a fine ash discharger, a fine ash bin, a fine ash dust collector, and a fine ash fan; The feed inlet of the fine ash discharger is connected to the ash outlet of each of the pulse dust collectors and the ash outlet of the bran powder cleaning screen, the discharge port of the fine ash discharger is provided with a fine ash air shutoff device and is connected to the fine ash bin, the air outlet of the fine ash discharger is connected to the feed inlet of the fine ash dust collector, the discharge port of the fine ash dust collector is connected to the air inlet of the fine ash fan, and the ash outlet of the fine ash dust collector is also connected to the feed inlet of the fine ash discharger; the air outlet of the fine ash fan is connected to a fine ash muffler.

6. A rice husk cleaning system according to claim 4, characterized in that: A tubular rice husk lifter is provided on the feed pipe between the rice husk discharge port and the corresponding cyclone discharger.

7. The rice husk cleaning system according to claim 1, characterized in that: It also includes a mixed wind network mechanism, which includes a central fan, a negative pressure wind network connected to the air inlet of the central fan, and a positive pressure wind network connected to the air outlet of the central fan; The fine impurities discharge port is connected to the feed port of the crusher through the negative pressure wind net, and the discharge port of the crusher is also connected to the feed port of the bran powder cleaning screen through the negative pressure wind net; the rice husk discharge port is connected to the feed port of the rice husk bin through the positive pressure wind net.

8. A rice husk cleaning system according to claim 7, characterized in that: The negative pressure wind network includes a plurality of first feed pipes, a plurality of first cyclone dischargers, a first air outlet pipe, and a first pulse dust collector; the feed inlets of the first cyclone dischargers are respectively connected to the corresponding fine impurities discharge outlet or the discharge outlet of the crusher through the corresponding first feed pipes, the discharge outlet of the first cyclone discharger is provided with a first discharge air shutoff and connected to the corresponding feed inlet of the crusher or the feed inlet of the bran powder cleaning screen, the air outlet of the first cyclone discharger is connected to the feed inlet of the first pulse dust collector through the first air outlet pipe, and the discharge outlet of the first pulse dust collector is connected to the air inlet of the central fan.

9. The rice husk cleaning system according to claim 7, characterized in that: The positive pressure wind network includes several second feed pipes, a second cyclone discharger, a second air outlet pipe, and a second pulse dust collector; the feed inlets of the second cyclone discharger are connected to the air outlets of the central fan through the second feed pipes, and the corresponding rice husk discharge ports are connected to the side walls of the second feed pipes through discharge air shutoffs; the discharge port of the second cyclone discharger is provided with a second discharge air shutoff and connected to the corresponding feed port of the rice husk bin, and the air outlet of the second cyclone discharger is connected to the feed port of the second pulse dust collector through the second air outlet pipe.

10. A rice husk cleaning process, using the rice husk cleaning system according to any one of claims 1 to 9, characterized in that: The following steps are involved: (1) separating the raw materials into large impurities, fine impurities and rice by the rotary vibrating screen; crushing the fine impurities into bran powder by the pulverizer, and then cleaning out the fine ash in the bran powder by the bran powder cleaning screen, and then sending the bran powder into the bran powder bin as pig feed; (2) delivering the rice to the vertical rice husk lifter, separating the rice into rice husks and rice grains by the vertical rice husk lifter; delivering the rice grains into the rice grain bin as chicken feed; (3) The rice husks are sent to the rice husk bin for storage, and after processing, are sent to the finished rice husk packaging bin to complete the production of the finished rice husks.

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