CN212306192U

CN212306192U - Rice threshing device

Info

Publication number: CN212306192U
Application number: CN202021312084.XU
Authority: CN
Inventors: 胡学文; 刘自斌; 徐明秀
Original assignee: Ningxia Saiwaixiang Food Co ltd
Current assignee: Ningxia Saiwaixiang Food Co ltd
Priority date: 2020-07-07
Filing date: 2020-07-07
Publication date: 2021-01-08
Anticipated expiration: 2030-07-07

Abstract

A paddy threshing device includes a cylindrical screen device, a paddy conveying device, a vibrating screen device, a first cyclone separation device, a paddy thresher, a second cyclone separation device, and a straw recovery device. The cylindrical screen device is provided with a first paddy discharge device. The vibrating screen device is provided with a second rice discharge port and a second sundries discharge port. The second rice discharge port is connected with the feeding port of the rice conveying device. The second sundries The discharge port is communicated with the feed port of the first cyclone separation device. The first cyclone separation device is provided with a third rice discharge port, a third sundries discharge port, and the third sundries discharge port and the inlet of the straw recovery device. The feeding port is connected, the third paddy discharging port is connected with the feeding port of the paddy thresher, the second cyclone separation device is provided with the fourth paddy discharging port, the fourth sundries discharging port, and the fourth paddy discharging port is connected with the paddy grain. The feeding port of the conveying device is communicated with, and the fourth sundries discharging port is communicated with the feeding port of the straw recovery device.

Description

Rice threshing device

Technical Field

The utility model relates to an agricultural product processing technology field especially relates to a corn thresher.

Background

After the rice is ripe, the rice is harvested by a harvester. The rice harvested by the harvester contains more straws and rice ears which are not completely threshed. Before milling, the rice is subjected to impurity removal, mainly by removing straws and rice leaves from the rice. The adopted method is to sieve the paddy, the paddy falls from the sieve, and the straw is left on the sieve. Besides the straw, the rice ears which are not completely threshed can also be retained on the screen, and finally the rice ears and the straw can be cleaned out as waste, thereby causing the waste of the rice. Since the proportion of the ears of rice in the waste is very small, if the waste is threshed for the second time, a large amount of electric energy is consumed, and the use cost of the machine is increased. Especially for large-batch rice processing, if the sieving time is long, the energy consumption of the sieve is increased, and the time is also consumed; if the screening time is short, a lot of rice will be screened out along with the waste. The mixing of the rice in the waste also increases the power consumption of the thresher.

Disclosure of Invention

In view of the above, it is necessary to provide a high-efficiency and low-consumption rice threshing device suitable for large-scale rice processing.

A rice threshing device comprises a cylindrical screen device, a rice conveying device, a vibrating screen device, a first cyclone separation device, a rice threshing machine, a second cyclone separation device and a straw recovery device, wherein the cylindrical screen device is provided with a first rice discharge hole and a first sundries discharge hole, the first rice discharge hole is communicated with a feed inlet of the rice conveying device, the first sundries discharge hole is communicated with a feed inlet of the vibrating screen device so as to further vibrate and screen sundries left after primary screening, the vibrating screen device is provided with a second rice discharge hole and a second sundries discharge hole, the second rice discharge hole is communicated with a feed inlet of the rice conveying device, the second sundries discharge hole is communicated with a feed inlet of the first cyclone separation device so as to separate straws from rice and rice ears, the first cyclone separation device is provided with a third rice discharge hole and a third sundries discharge hole, and the third sundries discharge hole is communicated with a feed inlet of the straw recovery device, the third rice outlet is communicated with the feed inlet of the rice thresher to thresh the rice on the rice ears, the discharge outlet of the rice thresher is communicated with the feed inlet of the second cyclone separation device to separate and remove the rice ears of the rice, the second cyclone separation device is provided with a fourth rice outlet and a fourth impurity outlet, the fourth rice outlet is communicated with the feed inlet of the rice conveying device, and the fourth impurity outlet is communicated with the feed inlet of the straw recovery device to transfer the rice ears with the rice removed to the straw recovery device.

Preferably, the drum sieve device comprises a first elevator, a drum sieve body and a first dust cover, wherein a feed inlet of the first elevator is formed in the bottom of the rice heap so as to facilitate lifting of rice, a discharge outlet of the first elevator and a feed inlet of the drum sieve body are formed in the position to transfer the rice to the drum sieve body for sieving, the first dust cover covers the drum sieve body, and the first rice discharge outlet and the first impurity discharge outlet are formed in the lower end of the drum sieve body.

Preferably, the shale shaker device includes second lifting machine, shale shaker body, second dust cover, the feed inlet and the first debris discharge gate intercommunication of second lifting machine, the discharge gate of second lifting machine are located the top of shale shaker body to further sieve through the remaining debris of primary screening, the second dust cover covers on the shale shaker body, second corn discharge gate, second debris discharge gate are located the lower extreme of shale shaker body.

Preferably, the straw recovery device comprises a fixed support, a collecting hopper and a plurality of dust removing nets, wherein the upper end of the fixed support is fixedly connected with the collecting hopper, the upper end of the collecting hopper is provided with a plurality of gas outlets, the dust removing nets are arranged on the gas outlets of the collecting hopper, a discharge port is arranged below the collecting hopper, and a discharge valve is arranged on the discharge port so as to control the discharge of materials.

Preferably, corn conveyor includes feed cylinder, driving motor, auger delivery oar, the one end and the driving motor fixed connection of feed cylinder, driving motor's pivot and auger delivery oar fixed connection, and the auger delivery oar is located the feed cylinder, the upper end of feed cylinder sets up three feed inlet, the three feed inlet of feed cylinder respectively with first corn discharge gate, second corn discharge gate, third corn discharge gate intercommunication, the end of feed cylinder sets up the discharge gate to the discharge corn.

Has the advantages that: the utility model discloses a corn thresher includes drum sieve device, corn conveyor, shale shaker device, first cyclone, corn thresher, second cyclone, straw recovery unit. The harvested raw materials enter the cylindrical screen device for screening, the cylindrical screen is low in efficiency, but the power consumption is low. Most of the rice is separated from the raw materials through the cylindrical screen at first, the separated rice consumes less energy per unit weight, and impurities are difficult to continuously extrude to block the screen in the rapid screening process. The remaining rice enters the vibrating screen device together with straws, rice leaves, rice ears and the like, the vibrating screen has high efficiency, namely the screening is cleaner, the consumed time is short, and the power consumption is high. In the material at this moment, the proportion of the rice is not high, the whole weight of the material is light, and the power consumption of the vibrating screen can be effectively reduced. Under the vibration action, the sundries such as straws and the like repeatedly bear the gravity action and can float above the paddy, so that the screening is accelerated, and the sundries screened by the vibrating screen mainly comprise straws, rice leaves, rice ears and trace paddy. Then the impurities enter a first cyclone separation device, the cyclone separation device can separate the rice ears and the rice with heavier density from the straws and the rice leaves with lighter density and the rice with empty and shrivelled grains, and the separated rice ears and the separated rice grains enter a threshing machine for threshing. Because only the rice ears and the rice are contained, the threshing is very efficient, the threshed rice ears are light in weight, and the pure rice can be obtained after passing through the second cyclone separator. Although the whole processing flow is long, the time for treating the rice is not improved, because the time for sieving each step is shortened, the obtained rice is cleaner, and the waste hardly contains the rice. The efficiency is improved, and the quality of the rice to be processed is improved. Meanwhile, the step-by-step treatment is more matched with the characteristics of the machine, the defects of the machine are avoided while the advantages of the machine are effectively utilized, and the treatment process is more reasonable.

Drawings

Fig. 1 is a schematic structural view of the rice threshing device of the present invention at a preferred angle.

Fig. 2 is a schematic structural view of another preferred angle of the rice threshing device of the present invention.

Fig. 3 is a schematic structural view of another preferred angle of the rice threshing device of the present invention.

Fig. 4 is a partial structural schematic diagram of fig. 3.

In the figure: the device comprises a rice threshing device 10, a cylindrical screen device 20, a first rice discharging port 201, a first impurity discharging port 202, a first lifting machine 203, a cylindrical screen body 204, a first dust cover 205, a rice conveying device 30, a vibrating screen device 40, a second rice discharging port 401, a second impurity discharging port 402, a second lifting machine 403, a vibrating screen body 404, a second dust cover 405, a first cyclone separation device 50, a third rice discharging port 501, a third impurity discharging port 502, a rice threshing machine 60, a second cyclone separation device 70, a fourth rice discharging port 701, a fourth impurity discharging port 702, a straw recovery device 80, a fixed support 801, a collecting hopper 802 and a dust removal net 803.

Detailed Description

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Referring to fig. 1 to 4, a rice threshing device 10 includes a cylindrical sieve device 20, a rice conveying device 30, a vibrating sieve device 40, a first cyclone separating device 50, a rice threshing machine 60, a second cyclone separating device 70, and a straw recycling device 80, the cylindrical sieve device 20 is provided with a first rice outlet 201 and a first impurity outlet 202, the first rice outlet 201 is communicated with a feed inlet of the rice conveying device 30, the first impurity outlet 202 is communicated with a feed inlet of the vibrating sieve device 40 to further vibrate and sieve impurities left after primary sieving, the vibrating sieve device 40 is provided with a second rice outlet 401 and a second impurity outlet 402, the second rice outlet 401 is communicated with a feed inlet of the rice conveying device 30, the second impurity outlet 402 is communicated with a feed inlet of the first cyclone separating device 50 to separate straws from rice and rice ears, the first cyclone separating device 50 is provided with a third cyclone rice outlet 501, a second cyclone separating device 50, a second cyclone separating device 20, a first cyclone, A third impurity discharge port 502, the third impurity discharge port 502 is communicated with the feed port of the straw recovery device 80 to recover the straw and the dust, a third rice discharge port 501 is communicated with the feed port of the rice thresher 60 to thresh the rice on the rice ear, the discharge port of the rice thresher 60 is communicated with the feed port of the second cyclone separation device 70 to separate and remove the rice ear of the rice, the second cyclone separation device 70 is provided with a fourth rice discharge port 701 and a fourth impurity discharge port 702, the fourth rice discharge port 701 is communicated with the feed port of the rice conveying device 30, and the fourth impurity discharge port 702 is communicated with the feed port of the straw recovery device 80 to transfer the rice ear from which the rice is removed to the straw recovery device 80.

Further, the cylindrical screen device 20 includes a first elevator 203, a cylindrical screen body 204, and a first dust cover 205, where a feeding port of the first elevator 203 is disposed at the bottom of the rice heap so as to lift rice, a discharging port of the first elevator 203 and a feeding port of the cylindrical screen body 204 are disposed to transfer rice onto the cylindrical screen body 204 for screening, the first dust cover 205 covers the cylindrical screen body 204, and the first rice discharging port 201 and the first impurity discharging port 202 are disposed at the lower end of the cylindrical screen body 204.

Further, the vibrating screen device 40 includes a second elevator 403, a vibrating screen body 404 and a second dust cover 405, the feed inlet of the second elevator 403 is communicated with the first impurity discharge outlet 202, the discharge outlet of the second elevator 403 is located above the vibrating screen body 404, so as to further screen the impurities left after primary screening, the second dust cover 405 covers the vibrating screen body 404, and the second rice discharge outlet 401 and the second impurity discharge outlet 402 are located at the lower end of the vibrating screen body 404.

Further, straw recovery unit 80 includes fixed bolster 801, collecting hopper 802, a plurality of dust removal net 803, the upper end and the collecting hopper 802 fixed connection of fixed bolster 801, the upper end of collecting hopper 802 is equipped with a plurality of gas outlets, and dust removal net 803 sets up on the gas outlet of collecting hopper 802, and the below of collecting hopper 802 sets up the discharge gate, is equipped with the discharge valve on the discharge gate to in the discharge of control material.

Further, corn conveyor 30 includes feed cylinder, driving motor, auger delivery oar, the one end and the driving motor fixed connection of feed cylinder, driving motor's pivot and auger delivery oar fixed connection, and the auger delivery oar is located the feed cylinder, the upper end of feed cylinder sets up three feed inlet, the three feed inlet of feed cylinder respectively with first corn discharge gate 201, second corn discharge gate 401, third corn discharge gate 501 intercommunication, the end of feed cylinder sets up the discharge gate to the rice of discharging.

The harvested rice raw material comprises rice, undeveloped and empty rice, rice ears, straws, rice leaves, dust and other substances. In the past, when a single screening device is used for screening, the problems of screen blockage, low efficiency, incomplete screening and the like are easy to occur. Corn raw materials are getting into the utility model discloses a corn thresher 10 back, sieve through the quick raw materials of drum sieve earlier, separate most corn in the raw materials, remaining corn and other debris reentrant shale shaker are handled, because remaining material quality is lighter, therefore the work that gravity was done is overcome to the shale shaker in vibration process is also less to the power consumption is also less. Simultaneously because the total quality of material is lighter, also be favorable to heavier corn to be jolted the below of lighter material more, so, can be more thorough to the separation of corn, also can be more favorable to empty flat corn to stay in the foreign matter layer. Meanwhile, since the vibrating screen device 40 is followed by the first cyclone separation device 50, and the cylindrical screen device 20, the vibrating screen device 40 and the first cyclone separation device 50 are communicated, the hollow rice, straw and dust with lower density can be sucked into the first cyclone separation device 50 and finally enter the straw recovery device 80. Therefore, the separation of the hollow rice from the normal rice is facilitated. The shale shaker is at the vibration in-process, and debris such as straw can appear transient separation with corn etc. first cyclone 50 can provide the environment of a relative negative pressure for shale shaker device 40, and debris during the separation can not pressed by corn to can enter into first cyclone 50 under the negative pressure effect, thereby by the separation. Some of the rice may also enter the cyclone separator under the negative pressure, but under the influence of the airflow in the cyclone separator, the rice will fall to the bottom of the first cyclone separator 50 and into the thresher. After a period of operation, part of the straws and the rice ears are remained on the vibrating screen, at the moment, the wind power of the first cyclone separation device 50 can be properly adjusted, so that the rice ears can be sucked into the first cyclone separation device 50, the rice ears entering the first cyclone separation device 50 can also fall into the threshing machine under the influence of the airflow, and the threshing machine is used for threshing, so that the power consumed by the threshing machine is very small. The threshed ears and the unhusked rice are separated in the second cyclone separation device 70, so that the unhusked rice is separated more thoroughly, the ears containing the unhusked rice are completely treated, and the waste of the unhusked rice is reduced.

In the using process of the utility model, the thresher can be used intermittently, and when the accumulated rice ears and rice of the thresher are enough, the thresher is restarted for one-time threshing. In order to collect the part of the rice ears and the rice, a bin can be added above the thresher. Also intermittently used is a second cyclonic separating apparatus 70.

Meanwhile, the step-by-step rice processing time is not inferior to the single rice processing time in terms of processing time. When the rice is treated step by step, the treatment time of each screening device is obviously shortened. For example, if the rice raw material is originally screened only by a cylindrical screen, the rice raw material needs to be screened thoroughly, and then is screened repeatedly by force, and in the repeated screening process, straws, rice leaves, rice ears and the like are easy to block the screen. And use the utility model discloses a corn thresher 10, do not need the drum sieve to sieve thoroughly, only need with the drum sieve rotate the process with most corn sieve can. According to the 'two-eight rule', the time required for the cylindrical sieve to sieve the rest of the paddy is equal to or even more than the time taken for most of the paddy to be sieved, which is caused by the structural characteristics of the cylindrical sieve itself and the properties of the material itself, such as the barrier effect of large granular substances such as straws, rice leaves and rice ears on the paddy during rotation and the adhesion effect of the rice leaves and rice ears on the paddy. These rice and debris get into the shale shaker in the middle of, and the rice receives the vibration effect, can take place to separate with rice leaf, rice ear, straw etc. and under the effect of gravity, thereby the rice can fall and be separated, and rice leaf, rice ear, straw etc. receive negative pressure wind power finally and can get into first cyclone 50 in. At this point, the rice has been substantially separated, but the ears present have not been treated. Under the action of the first cyclone separation device 50, a small amount of rice and rice ears are separated from straws and rice leaves and enter the thresher. The first cyclone separating apparatus 50 can reduce the separating time of rice in the vibrating screen in addition to separating ears of rice. Because the negative pressure that first cyclone 50 produced can make straw, rice leaf etc. and the more fast of corn separation, be favorable to improving the separation efficiency of shale shaker more.

The utility model discloses a whole closed condition that is in of corn thresher 10, the dust that screening process and thresh produced can get into straw recovery unit 80 with the ear of rice after straw, the threshing under cyclone's effect to can not produce the raise dust in making whole operating space, optimized the operation environment.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.

Claims

1. A paddy threshing device is characterized in that: comprising a cylindrical screen device, a paddy conveying device, a vibrating screen device, the first cyclone separation device, a paddy thresher, the second cyclone separation device, a straw recovery device, a cylindrical screen device A first rice discharge port and a first sundries discharge port are provided, the first rice discharge port is communicated with the feed port of the rice conveying device, and the first sundries discharge port is communicated with the feed port of the vibrating screen device. In order to further vibrate and sieve the remaining sundries after the primary screening, the vibrating screen device is provided with a second rice discharge port and a second sundries discharge port, and the second rice discharge port is communicated with the feeding port of the rice conveying device. , the second debris discharge port is communicated with the feed port of the first cyclone separation device to separate the straw from the paddy and rice ears, and the first cyclone separation device is provided with a third paddy discharge port and a third debris outlet. The feed port, the third debris discharge port is communicated with the feed port of the straw recovery device to recover straw and dust, and the third rice discharge port is communicated with the feed port of the rice thresher, so that the The paddy is threshed, the outlet of the paddy thresher is communicated with the inlet of the second cyclone separation device to separate and remove the rice ears of the paddy, and the second cyclone separation device is provided with a fourth paddy outlet and a fourth debris outlet. The fourth paddy discharge port is connected with the feed port of the rice conveying device, and the fourth sundries discharge port is connected with the feed port of the straw recovery device, so as to transfer the rice ears removed from the paddy to the straw recovery device.

2 . The paddy threshing device according to claim 1 , wherein the cylindrical screen device comprises a first elevator, a cylindrical screen body, a first dust cover, and a feeding port of the first elevator. 3 . It is arranged at the bottom of the rice pile to facilitate the lifting of the rice. The discharge port of the first elevator and the feed port of the cylindrical screen body are used to transfer the rice to the cylindrical screen body for screening. The first dust cover covers On the cylindrical screen body, the first rice discharge port and the first debris discharge port are located at the lower end of the cylindrical screen body.

3. The paddy threshing device according to claim 2, wherein the vibrating screen device comprises a second elevator, a vibrating screen body, and a second dust cover, and the feeding port of the second elevator is connected to the second elevator. A debris discharge port is connected, and the discharge port of the second elevator is located above the vibrating screen body to further screen the debris left after the primary screening, and the second dust cover is covered on the vibrating screen body. The second rice outlet and the second debris outlet are located at the lower end of the vibrating screen body.

4. The paddy threshing device according to claim 3, characterized in that: the straw recovery device comprises a fixed bracket, a collection hopper, and a plurality of dust removal nets, the upper end of the fixed bracket is fixedly connected with the collection hopper, and the upper end of the collection hopper is provided with There are several air outlets, the dust removal net is arranged on the air outlet of the collecting hopper, the discharging outlet is arranged under the collecting hopper, and the discharging valve is arranged on the discharging outlet, so as to control the discharge of materials.

5. The paddy threshing device according to claim 4, characterized in that: the paddy conveying device comprises a barrel, a driving motor, and a screw conveying propeller, one end of the barrel is fixedly connected with the driving motor, and the rotating shaft of the driving motor is connected to the driving motor. The screw conveying paddle is fixedly connected, and the screw conveying paddle is located in the barrel. The upper end of the barrel is provided with three feeding ports, and the three feeding ports of the barrel are respectively connected with the first rice outlet, the second rice outlet, The third paddy outlet is connected, and the end of the barrel is provided with a outlet to discharge paddy.