CN109465196B

CN109465196B - Impurity removing equipment for multi-stage separation of grains

Info

Publication number: CN109465196B
Application number: CN201811244894.3A
Authority: CN
Inventors: 不公告发明人
Original assignee: Heilongjiang Labor Technology Co ltd
Current assignee: Heilongjiang Labor Technology Co ltd
Priority date: 2018-10-24
Filing date: 2018-10-24
Publication date: 2022-07-26
Anticipated expiration: 2038-10-24
Also published as: CN109465196A

Abstract

The invention discloses impurity removing equipment for multi-stage separation of grains, which comprises an installation rack and a separation system for separating and removing impurities from grains, the separation system is arranged on the ground through a mounting rack and comprises a first separation device, a second separation device and a feeding device for placing grains into the first separation device, the grains enter the first separation device through the feeding device, and the first separation device comprises a protective shell communicated with the feeding device, a first separation mechanism used for separating small granular impurities in grains, and a second separation mechanism used for separating light impurities mixed in the grains, such as sand, rice husks and straws, wherein the first separation mechanism and the second separation mechanism are arranged in the protective shell.

Description

Impurity removing equipment for multi-stage separation of grains

Technical Field

The invention relates to the technical field of grain separation, in particular to impurity removal equipment for performing multi-stage separation on grains.

Background

In the season that crops are harvested, farmers need to screen and remove impurities from aired grains to remove sand, rice husks, straws and the like doped in the grains, the grains without impurities can not be collected in a granary until finally, in the traditional impurity removal process, the farmers raise the exhaust fan, bend down the grains to be dried to the winnowing pan, erect the waist and lift the winnowing pan to enable the winnowing pan to be higher than the exhaust fan, then pour the grains in the winnowing pan down, and when the grains are blown out by the exhaust fan, the impurities doped in the grains can be blown away, so that the grains are separated from the impurities.

Disclosure of Invention

In order to overcome the defects in the prior art, the invention aims to provide the impurity removing equipment for performing multi-stage separation on the grains, the separator can perform multi-stage separation and impurity removal on the grains and can separate the impurities in a centralized manner, the body of the separator can generate vibration, and the separation and impurity removal effects are further improved.

In order to achieve the technical purpose, the technical scheme adopted by the invention is as follows.

The impurity removing equipment for performing multi-stage separation on grains comprises an installation frame and a separation system for separating and removing impurities from the grains, wherein the separation system is arranged on the ground through the installation frame and comprises a first separation device, a second separation device and a feeding device for placing the grains into the first separation device;

the feeding device comprises a hopper, a feeding upper end seat and a feeding lower end seat, the feeding upper end seat and the feeding lower end seat are provided with openings and communicated with each other, the hopper is connected with the feeding upper end seat and communicated with the opening of the feeding upper end seat, and the feeding lower end seat is communicated with the first separating device;

the feeding device further comprises a feeding mechanism arranged on the feeding upper end seat and the feeding lower end seat, the feeding mechanism comprises a first gate plate and a second gate plate which are arranged between the feeding upper end seat and the feeding lower end seat, the first gate plate and the second gate plate are horizontally arranged, the movement state between the first gate plate and the second gate plate comprises an opening state and a closing state, the opening state and the closing state can be freely switched, and the feeding mechanism further comprises a feeding control component for controlling the opening and closing of the first gate plate and the second gate plate;

the two ends of the opening of the feeding upper end seat are respectively and horizontally provided with a first support plate and a second support plate, the opening of the feeding lower end seat is a feeding opening, the two ends of the feeding opening are respectively and horizontally provided with a first guide plate and a second guide plate, the guide directions of the first guide plate and the second guide plate point to the center of the feeding opening, the first support plate is connected with the first guide plate in a matching manner, the second support plate is connected with the second guide plate in a matching manner, the first flashboard is arranged between the first support plate and the first guide plate and can slide along the guide direction of the first guide plate, and the second flashboard is arranged between the second support plate and the second guide plate and can slide along the guide direction of the second guide plate;

the feeding control component is arranged at the side wall of the feeding port of the feeding lower end seat and comprises a first rotating part, a first connecting rod and a second connecting rod, the first rotating part is movably connected to the side wall of the feeding port of the feeding lower end seat and can rotate around the axis of the first rotating part, the central axis of the first rotating part is horizontally arranged and perpendicular to the guiding direction of the first guide plate and the second guide plate, one end of the first rotating part is hinged to one end of the first connecting rod, the other end of the first rotating part is hinged to one end of the second connecting rod, the other end of the first connecting rod is hinged to the first flashboard, the other end of the second connecting rod is hinged to the second flashboard, and axial core lines between the first rotating part and the first connecting rod, between the first rotating part and the second connecting rod, between the first connecting rod and the first flashboard and between the second connecting rod are horizontally arranged and perpendicular to the first guide plate, The feeding control component also comprises a feeding motor used for driving the rotating piece to rotate, the feeding motor is installed at the side wall of a feeding port of the feeding lower end seat through a fastener, an output shaft of the feeding motor is horizontally arranged and is perpendicular to the guiding directions of the first guide plate and the second guide plate, the rotating piece is coaxially and fixedly sleeved outside the output shaft of the feeding motor, and the output shaft of the feeding motor penetrates through the side wall of the feeding port of the feeding lower end seat and can rotate around the axis of the rotating piece;

the feeding control component also comprises a second rotating part, a third connecting rod and a fourth connecting rod, the second rotating part is movably arranged at the side wall of the feeding opening of the feeding lower end seat and is opposite to and coaxially arranged with the first rotating part, the second rotating part and the first rotating part, the third connecting rod and the second connecting rod, and the fourth connecting rod and the first connecting rod are arranged in parallel, shaft core lines between the second rotating part and the third connecting rod, between the second rotating part and the fourth connecting rod, between the third connecting rod and the second connecting rod, between the fourth connecting rod and the fourth connecting rod, between the third connecting rod and the second connecting rod, and between the fourth connecting rod and the first connecting rod are all horizontally arranged and are perpendicular to the guide directions of the first guide plate and the second guide plate;

the first separation device comprises a protective shell communicated with the feeding device, a first separation mechanism for separating small granular impurities in grains, and a second separation mechanism for separating light impurities mixed in the grains, such as sand, rice husks, straws and the like, wherein the first separation mechanism and the second separation mechanism are arranged in the protective shell;

the first separation mechanism comprises a first separation shell, the first separation shell is arranged in a protective shell, the first separation shell is of a cylindrical barrel structure with openings at two ends, a first filter for separating small granular impurities in grains is coaxially arranged in the first separation shell, the first filter is vertically arranged and comprises a filtering separation section and a grain discharge section, the filtering separation section is a filtering screen, the filtering screen is conical and has openings at two ends, the filtering screen gradually narrows along the falling direction of the grains, a first outlet is arranged at the side wall of the first separation shell, the first outlet is obliquely arranged and is close to the bottom of the first separation shell, a first guide plate is arranged between the grain discharge section and the first separation shell, the first guide plate is obliquely arranged and enables the space between the grain discharge section and the first separation shell to be in a closed state, the bottom of the first guide plate is close to the joint of the first outlet and the first separation shell;

the second separation mechanism comprises a separation disc, a first blanking port arranged on the separation disc, and a first impurity discharging channel communicated with the first blanking port and used for discharging light impurities such as sand, rice husks, straws and the like mixed in grains, the second separating mechanism also comprises a blowing mechanism, the blowing mechanism comprises a blowing port, the blowing port is arranged at the opening at the upper end of the first separating shell, the wind direction of the blowing port is horizontally arranged and faces to the periphery of the opening at the upper end of the first separating shell, the separation disc is coaxially and fixedly sleeved outside the first separation shell, two coaxial unequal-diameter side walls are vertically arranged in the circumferential direction of the separation disc in an extending manner, the first blanking port is positioned between the inner wall and the outer wall, and the outer wall of the separation disc is fixedly connected and tightly contacted with the protective shell through a fastener;

the bottom of the bulk material element is provided with a separation guide plate, the separation guide plate comprises a separation inclined surface and a connecting column, the separation inclined surface is fixedly connected with the bulk material element through the connecting column, the separation inclined surface is conical and gradually narrows along the vertical upward direction, a first separation lug is arranged on the separation inclined surface of the separation guide plate, and the first separation lug surrounds and is arranged in the circumferential direction of the separation inclined surface at intervals;

the second separation device comprises a second separation shell communicated with the first separation shell, the second separation shell is of a cylinder structure with two open ends, a second filter for separating large granular impurities in grains is coaxially arranged in the second separation shell and is vertically arranged, the second filter comprises a screening section and a blanking section, the blanking section is a blanking pipe connected with the screening section, the screening section is a screening net which is conical and has two open ends, the screening net is gradually narrowed along the falling direction of the grains, a second blanking port is arranged at the side wall of the second separation shell, the second blanking port is obliquely arranged and close to the bottom of the second separation shell, a second guide plate is arranged between the blanking section and the second separation shell, the second guide plate is obliquely arranged and enables the space between the blanking section and the second separation shell to be in a closed state, the bottom of the second guide plate is close to the joint of the second blanking port and the second separation shell, a third blanking port is obliquely arranged on the side wall of the blanking pipe, a third guide plate is obliquely arranged in the blanking pipe, and the bottom of the third guide plate is close to the joint of the third blanking port and the blanking pipe;

the blowing mechanism of the first separating device comprises a blower for providing wind power to a blowing port, the blower is installed on the installation frame, the air outlet of the blower is communicated with the blowing port of the blowing mechanism through a ventilation element, the ventilation element comprises a ventilation pipeline communicated with the air outlet of the blower, and a ventilation rod connected between the ventilation pipeline and the blowing port is a long straight rod, the ventilation rod is coaxially arranged with the first separating shell and the second separating shell, one end of the ventilation rod is connected with the ventilation pipeline, and the other end of the ventilation rod sequentially penetrates through the third guide plate, the second filter, the guide material inlet device and the center of the first separator to vertically extend upwards and is connected with the blowing port.

As a further improvement of the technical scheme.

The mounting frame comprises a limiting frame for mounting the grain separator body and a base fixedly arranged on the ground, elastic pieces are arranged between the limiting frame and the base and are respectively arranged at four corners of the bottom of the limiting frame, the elastic pieces are springs, one end of each elastic piece is connected with the base, and the other end of each elastic piece is connected with the limiting frame;

the first blanking ports are provided with a plurality of blanking ports which are uniformly arranged in the circumferential direction of the separating disc at intervals, the first blanking ports are vertically arranged, the bottom of each first blanking port is connected with a first impurity discharging channel in a matched manner, each first impurity discharging channel comprises a feeding channel, a middle channel and a discharging channel, the feeding channels are communicated with the middle channels in a matched manner, the discharging channels are communicated with the middle channels and are used for discharging light impurities such as sand, dust, rice husks and straws, the middle channels and the discharging channels are obliquely arranged, and the middle channels surround the circumferential direction of the first separating shell;

the separating disc is provided with a transmission mechanism, the transmission mechanism comprises a transmission motor a, a transmission member, a separating ring and a push plate, the separating ring is coaxially and movably sleeved on the inner wall of the separating disc and can rotate around the axis of the separating disc, the push plate is provided with a plurality of push plates which uniformly surround the circumferential direction of the outer circumferential surface of the separating ring, the push plates are vertically arranged and are positioned between the inner wall and the outer wall of the separating disc, the transmission motor a is arranged on the separating disc, the output shaft of the transmission motor a is vertically arranged, the output shaft of the transmission motor a is connected to the driving part of the transmission member, and the driven part of the transmission member is connected with the separating ring;

the transmission component comprises a first gear b, a second gear c, a rotating shaft d and a third gear e, the first gear b is coaxially and fixedly sleeved outside an output shaft of the transmission motor a, the rotating shaft d penetrates through the disc surface of the separating disc and is vertically arranged, the rotating shaft d is movably connected with the disc surface of the separating disc and can rotate around the axis of the rotating shaft d, the second gear c is coaxially and fixedly sleeved at one end of the rotating shaft d, the third gear e is coaxially and fixedly sleeved at the other end of the rotating shaft d, the second gear c is meshed with the first gear b, and an inner ring gear meshed with the third gear e is coaxially and fixedly sleeved on the inner ring surface of the separating ring.

Compared with the prior art, the grain separator has the advantages that the grain separator is provided with the feeding device, the first separating device and the second separating device, the feeding device can intermittently feed the first separating device, the blocking phenomenon of the feeding device can be reduced by adopting intermittent feeding, the feeding end of the first separating device is provided with the separating guide plate, the plate surface of the separating guide plate is provided with the first separating lug, and when grains fall onto the separating guide plate, light impurities such as rice husks and straws are different in bouncing height when colliding with the first separating lug, so that the light impurities such as the rice husks and the straws can be separated from the grains, after the grains are separated and purified by the first separating device, the grains enter the second separating device to be secondarily purified, and the separated impurities are concentrated and convenient to clean.

Drawings

In order to illustrate the embodiments of the present invention more clearly, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings can be obtained by those skilled in the art without inventive effort.

FIG. 1 is a schematic view of the present invention.

Fig. 2 is a schematic view of the structure of the mounting frame of the present invention.

FIG. 3 is a schematic view of a feeding device according to the present invention.

FIG. 4 is a schematic view of a feeding device according to the present invention.

FIG. 5 is a schematic view of a feeding device according to the present invention.

FIG. 6 is a schematic view of the structure of the feeding lower end seat of the present invention.

Fig. 7 is a schematic view of the structure of the bulk material element of the present invention.

FIG. 8 is a schematic view of the first and second separation devices of the present invention.

FIG. 9 is a schematic view of a first separation apparatus of the present invention.

Fig. 10 is a schematic structural view of a first exhaust channel of the present invention.

Fig. 11 is a schematic structural diagram of a first separation bump according to the present invention.

FIG. 12 is a schematic view of a first separation apparatus of the present invention.

Fig. 13 is a schematic view of a first separating mechanism of the present invention.

Fig. 14 is a schematic view of a first separating mechanism of the present invention.

FIG. 15 is a schematic view of a second separating mechanism of the present invention.

Fig. 16 is a schematic view of the structure of the separation disc of the present invention.

FIG. 17 is a schematic view of a second separating mechanism of the present invention.

FIG. 18 is a schematic view of a second separating mechanism of the present invention.

Fig. 19 is a schematic view of the transmission mechanism of the present invention.

FIG. 20 is a schematic view of the separation ring and push plate of the present invention.

FIG. 21 is a schematic view of a second separation apparatus of the present invention.

FIG. 22 is a schematic view of a second separation apparatus of the present invention.

Fig. 23 is a schematic view of a blowing mechanism of the present invention.

Fig. 24 is a schematic view of the blowing mechanism of the present invention.

Fig. 25 is a schematic view of a blowing mechanism of the present invention.

Labeled as:

10. a feeding device; 110. feeding an upper end seat; 120. feeding a lower end seat; 121. a first guide plate; 122. a second guide plate; 123. a feeding port; 124. a connecting portion; 130. a feeding mechanism; 131. a first rotating part; 132. a first link; 133. a second link; 134. a first shutter plate; 135. a second shutter plate; 136. a second rotating part; 137. a third link; 138. a fourth link; 140. a bulk material element; 141. a feed tray; 142. a bulk material guide block;

20. a first separating device; 210. a first separating mechanism; 211. a first separation housing; 212. a first filter; 213. a first guide plate; 214. a first outlet; 220. a second separating mechanism; 221. a transmission mechanism; 221a, a transmission motor; 221b, a first gear; 221c, a second gear; 221d, a rotating shaft; 221e, a third gear; 222. an inner gear ring; 223. separating the ring; 224. a separation disc; 225. pushing a plate; 226. a roller; 227. a first blanking port; 230. separating the guide plate; 231. connecting columns; 232. a first separation bump; 240. a blowing mechanism; 241. a blower; 242. a ventilation duct; 243. a ventilation rod; 244. an air blowing port; 245. a sealing cover; 246. a blower motor; 247. a driving wheel; 248. a driven wheel; 250. a first impurity discharge passage; 251. a feed channel; 252. a middle channel; 253. a discharge channel; 260. a protective element; 261. a sleeve; 262. a limiting shell; 263. a bearing;

30. a second separation device; 310. a second separation housing; 320. guiding the material feeder; 330. a second filter; 340. a blanking pipe; 350. a second guide plate; 360. a third guide plate; 370. a second blanking port; 380. a third blanking port;

40. a mounting frame; 410. a limiting frame; 420. an elastic member; 430. a base.

Detailed Description

The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without any creative work belong to the protection scope of the present invention.

As shown in fig. 1-25, a edulcoration equipment for carrying out multistage separation to cereal, including mounting bracket 40, be used for carrying out the piece-rate separation system of edulcoration to cereal, piece-rate separation system pass through mounting bracket 40 and set up on ground, piece-rate separation system include first separator 20, second separator 30, be used for putting into the pan feeding device 10 of cereal in first separator 20, cereal get into in first separator 20 through pan feeding device 10 to get into in the second separator 30 after the separation edulcoration of first separator 20, cereal carries out the secondary through second separator 30 and separates the edulcoration and makes cereal and impurity complete separation, cereal has improved the cleanliness of cereal after the separation edulcoration through first separator 20, second separator 30, thereby has reached the requirement of people's required essence dress cereal.

As shown in fig. 1 and 3-7, the first separating device 20, the second separating device 30, and the feeding device 10 are arranged vertically, and the feeding device 10, the first separating device 20, and the second separating device 30 are sequentially arranged from top to bottom, the feeding device 10 includes a hopper, a feeding upper end seat 110, and a feeding lower end seat 120, the feeding upper end seat 110 and the feeding lower end seat 120 are provided with openings and are communicated with each other, the hopper is connected with the feeding upper end seat 110 and is communicated with the opening of the feeding upper end seat 110, the feeding lower end seat 120 is communicated with the first separating device 20, and grains enter the first separating device 20 through the hopper and the feeding upper end seat 110 and the feeding lower end seat 120.

When the grains enter the first separating device 20 through the hopper, the feeding upper end seat 110 and the feeding lower end seat 120, the hopper, the feeding upper end seat 110 and the feeding lower end seat 120 are always in a connected state, the feeding amount of grains entering the first separating device 20 cannot be controlled, when a large amount of grains enter the first separating device 20 at the same time, the first separating device 20 is limited by the separating space and cannot completely separate and remove impurities from the large amount of grains, so that the efficiency of the first separating device 20 in separating and removing impurities from the grains is reduced, therefore, the feeding amount of the grains entering the first separating device 20 needs to be controlled, so that the separation and the impurity removal of the grains in the first separating device 20 are more thorough, therefore, the feeding device 10 further includes a feeding mechanism 130 disposed on the feeding upper base 110 and the feeding lower base 120, the feeding mechanism 130 can control the feeding amount of the grains so as to achieve the best separation and impurity removal effect.

As shown in fig. 3 to 5, the feeding mechanism 130 includes a first gate 134 and a second gate 135 disposed between the upper feeding base 110 and the lower feeding base 120, the first gate 134 and the second gate 135 are horizontally disposed, and the movement state between the first gate 134 and the second gate 135 includes an open state, a closed state, and can be freely switched between the open state and the closed state, the feeding mechanism 130 further includes a feeding control member for controlling the opening and closing of the first gate 134 and the second gate 135, the feeding control member can provide power for the opening and closing of the first gate 134 and the second gate 135, when the first gate 134 and the second gate 135 are in the open state, grains can enter the first separating device 20 through the feeding device 10, and when the first gate 134 and the second gate 135 are in the closed state, grains cannot enter the first separating device 20 through the feeding device 10, therefore, the feeding amount of grains into the first separating device 20 can be controlled by freely switching between the open state and the closed state of the first shutter 134 and the second shutter 135.

More specifically, in order to facilitate installation of the first shutter 134 and the second shutter 135, and to enable free switching between the open state and the closed state of the first shutter 134 and the second shutter 135 to be more stable, two ends of an opening of the feeding upper end seat 110 are respectively and horizontally provided with a first support plate and a second support plate, an opening of the feeding lower end seat 120 is a feeding port 123, two ends of the feeding port 123 are respectively and horizontally provided with a first guide plate 121 and a second guide plate 122, a guiding direction of the first guide plate 121 and the second guide plate 122 points to a center of the feeding port 123, the first support plate is in matching connection with the first guide plate 121, the second support plate is in matching connection with the second guide plate 122, the first shutter 134 is arranged between the first support plate and the first guide plate 121 and can slide along the guiding direction of the first guide plate 121, the second shutter 135 is arranged between the second support plate and the second guide plate 122 and can slide along the guiding direction of the second guide plate 122, when the first gate 134 and the second gate 135 are close to each other, the first gate 134 and the second gate 135 are switched from the open state to the closed state, and when the first gate 134 and the second gate 135 are far from each other, the first gate 134 and the second gate 135 are switched from the closed state to the open state.

More perfectly, the feeding control component is disposed at the sidewall of the feeding port 123 of the feeding lower end seat 120, the feeding control component includes a first rotating member 131, a first connecting rod 133 and a second connecting rod 132, the first rotating member 131 is movably connected to the sidewall of the feeding port 123 of the feeding lower end seat 120, the first rotating member 131 can rotate around its axis, the central axis of the first rotating member 131 is horizontally arranged and perpendicular to the guiding direction of the first guide plate 121 and the second guide plate 122, one end of the first rotating member 131 is hinged to one end of the first connecting rod 133, the other end of the first rotating member is hinged to one end of the second connecting rod 132, the other end of the first connecting rod 133 is hinged to the first shutter 134, the other end of the second connecting rod 132 is hinged to the second shutter 135, the first rotating member 131 is hinged to the first connecting rod 133, the first rotating member 131 is hinged to the second connecting rod 132, the first connecting rod 133 is hinged to the first shutter 134, the first connecting rod 133 is hinged to the second shutter 134, the first connecting rod 131 is hinged to the first shutter 134, The axial core lines between the second connecting rod 132 and the second gate 135 are all arranged horizontally and are perpendicular to the guiding directions of the first guide plate 121 and the second guide plate 122, the rotation of the rotating member 131 can drive the first connecting rod 133 and the second connecting rod 132 to move and pull the first gate 134 and the second gate 135 to move close to each other or away from each other along the guiding directions of the first guide plate 121 and the second guide plate 122, the feeding control member further comprises a feeding motor for driving the rotating member one 131 to rotate, the feeding motor is installed at the side wall of the feeding port 123 of the feeding lower end seat 120 through a fastener, the output shaft of the feeding motor is arranged horizontally and is perpendicular to the guiding directions of the first guide plate 121 and the second guide plate 122, the rotating member one 131 is coaxially and fixedly sleeved outside the output shaft of the feeding motor, the output shaft of the feeding motor penetrates through the side wall of the feeding port 123 of the feeding lower end seat 120 and can rotate around the axis of the feeding motor, when the feeding amount of grains entering the first separating device 20 is controlled, the feeding motor is started, the output shaft of the feeding motor rotates to drive the first rotating member 131 to rotate around the axis of the first rotating member, the rotation of the first rotating member 131 can drive the first connecting rod 133 and the second connecting rod 132 to move and pull the first gate 134 and the second gate 135 to move close to or away from each other along the guiding directions of the first guide plate 121 and the second guide plate 122, when the first shutter 134 and the second shutter 135 are close to each other, the first shutter 134 and the second shutter 135 are switched from the open state to the closed state, when the first gate 134 and the second gate 135 are away from each other, the first gate 134 and the second gate 135 are switched from the closed state to the open state, and the first gate 134 and the second gate 135 are intermittently opened and closed, so that the feeding amount of grains into the first separating device 20 can be controlled.

More specifically, in order to balance the forces applied when the first gate 134 and the second gate 135 move toward/away from each other along the guiding directions of the first guiding plate 121 and the second guiding plate 122, and to ensure the stability of the free switching between the closed state and the open state of the first gate 134 and the second gate 135, the feeding control member further includes a second rotating member 136, a third connecting rod 137, and a fourth connecting rod 138, the second rotating member 136 is movably disposed at the sidewall of the feeding port 123 of the feeding lower end seat 120 and is opposite to and coaxially disposed with the first rotating member 131, the second rotating member 136 and the first rotating member 131, the third connecting rod 137 and the second connecting rod 132, and the fourth connecting rod 138 and the first connecting rod 133 are all disposed in parallel, one end of the second rotating member 136 is hinged to one end of the third connecting rod 137, and the other end of the second rotating member is hinged to one end of the fourth connecting rod 138, the other end of the third connecting rod 137 is hinged to the second gate plate 135, the other end of the fourth connecting rod 138 is hinged to the first gate plate 134, axial lines between the second rotating part 136 and the third connecting rod 137, between the second rotating part 136 and the fourth connecting rod 138, between the third connecting rod 137 and the second gate plate 135, and between the fourth connecting rod 138 and the first gate plate 134 are all horizontally arranged and perpendicular to the guiding directions of the first guide plate 121 and the second guide plate 122, and when the closed state and the open state of the first gate plate 134 and the second gate plate 135 are freely switched, the feeding control component can ensure the stress balance and stability of the first gate plate 134 and the second gate plate 135.

Preferably, the end portions of the first and

second shutters

134 and 135 close to each other are provided with a guiding slope, which facilitates the gathering of the grains toward the feeding port 123 of the feeding lower seat 120, so as to facilitate the placing of the grains into the first separating device 20.

As shown in fig. 6 to 7, a connecting portion 124 communicated with the first separating device 20 is disposed below the feeding port 123 of the feeding lower end seat 120, the connecting portion 124 is a cylindrical structure with openings at two ends, the grains are collected by the guiding inclined planes of the first gate 134 and the second gate 135 and enter the first separating device 20 through the feeding port 123, the grains and the impurities collected into the first separating device 20 are in close contact, which is not beneficial to separating and removing the grains, so that the contact tightness between the grains and the impurities is reduced, even if the grains and the impurities are separated, the impurities of the grains can be separated and removed, a bulk material element 140 is disposed between the connecting portion 124 and the first separating device 20, and the bulk material element 140 can disperse the collected grains, thereby improving the impurity removing efficiency of the first separating device 20.

As shown in fig. 7, the bulk cargo member 140 includes a feeding tray 141 and a bulk cargo guide block 142, the feeding tray 141 is fittingly installed at the bottom opening of the connecting portion 124, a feeding gap is provided on the feeding tray 141, a feeding guide block 142 is provided at the center of the feeding tray 141, the feeding guide block 142 is tapered and the tapered surface is vertically arranged upward, which is significant in that grains enter through the connecting portion 124 and fall onto the tapered surface of the feeding guide block 142, the grains are dispersed around after sliding down through the tapered surface, and the dispersed grains enter into the first separating device 20 through the feeding gap of the feeding tray 141.

As shown in fig. 8-20, the first separating device 20 includes a protective shell connected to the feeding device 10, a first separating mechanism 210 for separating small granular impurities from grains, and a second separating mechanism 220 for separating light impurities such as sand, rice husks, straws, etc. mixed in grains, the first separating mechanism 210 and the second separating mechanism 220 are disposed in the protective shell, grains enter the protective shell through the feeding device 10, and are separated and decontaminated by the first separating mechanism 210 and the second separating mechanism 220 to obtain relatively pure grains, and then grains enter the second separating device 30, and are separated and decontaminated by the second separating device 30 to further improve the cleanliness of grains.

As shown in fig. 8 and 14, the first separating mechanism 210 includes a first separating housing 211, the first separating housing 211 is disposed in the protective housing, the first separating housing 211 is a cylindrical tube structure with two open ends, a first filter 212 for separating small granular impurities in grains is coaxially disposed in the first separating housing 211, the first filter 211 is vertically disposed, the first filter 211 includes a filtering and separating section and a grain discharging section, the filtering and separating section is a filtering screen, the filtering screen is conical and has two open ends, along a falling direction of grains, the filtering screen is gradually narrowed, the small granular impurities can leak out through pores of the filtering screen, grains slide down to the grain discharging section along a surface of the filtering screen and enter the second separating device 30 through the grain discharging section, the small granular impurities leak out through pores of the filtering screen and fall to the periphery of the grain discharging section, in order to intensively treat small granular impurities, a first outlet 214 is arranged on the side wall of the first separation shell 211, the first outlet 214 is obliquely arranged and close to the bottom of the first separation shell 211, a first guide plate 213 is arranged between the grain discharging section and the first separation shell 211, the first guide plate 213 is obliquely arranged and enables the space between the grain discharging section and the first separation shell 211 to be in a closed state, the bottom of the first guide plate 213 is close to the joint of the first outlet 214 and the first separation shell 211, and the small granular impurities can slide to the first outlet 214 through the surface of the first guide plate 213 and be discharged.

More specifically, be provided with the spigot surface on the circumferencial direction of foretell first separation casing 211's upper end opening part, along vertical decurrent direction, the spigot surface narrows down gradually, and the meaning of design like this lies in, and cereal disperses around after the toper face landing of feeding guide block 142, and cereal after the dispersion falls into first separation casing 211 through the feeding clearance of feeding dish 141, and the spigot surface can avoid the cereal of dispersion whereabouts to fall outside first separation casing 211.

As shown in fig. 8-13 and 15-20, the second separating mechanism 220 includes a separating tray 224, a first blanking opening 227 disposed on the separating tray 224, and a first impurity discharging passage 250 communicated with the first blanking opening 227 and used for discharging light impurities such as sand, rice hulls, straws and the like mixed in grains, the separation of the light impurities in the grains is usually performed by means of air blowing separation, and the sand, the rice hulls, the straws and the grains mixed in the grains are separated by air blowing, therefore, the second separating mechanism 220 further includes an air blowing mechanism 240, the grains enter the protective shell through the feeding device 10, the air blowing mechanism 240 blows the sand, the rice hulls, and the straws mixed in the grains into the separating tray 224, and the sand, the rice hulls, and the straws fall into the first impurity discharging passage 250 through the first blanking opening 227 on the separating tray 224 and are discharged.

More specifically, the blowing mechanism 240 includes a blowing port 244, the blowing port 244 is disposed at an upper opening of the first separating shell 211, the wind direction of the blowing port 244 is horizontally arranged and faces the periphery of the upper opening of the first separating shell 211, the separating discs 224 are coaxially and fixedly sleeved outside the first separating shell 211, two coaxial sidewalls with different diameters are vertically extended in the circumferential direction of the separating discs 224, an inner wall is disposed near the center of the separating discs 224, an outer wall is disposed far from the center of the separating discs 224, the first blanking port 227 is disposed between the inner wall and the outer wall, the outer wall of the separating discs 224 is fixedly connected and tightly contacted with the protective shell through a fastener, the grains dispersed by the feeding guide block 142 fall into the upper opening of the first separating shell 211 through the feeding gap of the feeding disc 141, the blowing mechanism 240 generates wind power and conveys the grains to the blowing port 244, the air blowing port 244 blows air to the periphery of the opening at the upper end of the first separation shell 211 and lifts sand dust, rice hulls and straws mixed in grains, the lifted sand dust, rice hulls and straws continue to move to the periphery of the opening at the upper end of the first separation shell 211 under the action of wind force and fall between the inner wall and the outer wall of the separation disc 224, and then the sand dust, the rice hulls and the straws fall into the first impurity discharging channel 250 through the first material falling port 227 on the separation disc 224 and are discharged.

More perfect, the above-mentioned first blanking mouth 227 is provided with a plurality of and evenly arranges in the circumferencial direction of separation disc 224 at interval, first blanking mouth 227 is vertical arrangement, the bottom and the first row of miscellaneous passageway 250 accordant connection of first blanking mouth 227, first row of miscellaneous passageway 250 include feed channel 251 that matches the intercommunication with a plurality of first blanking mouths 227, the intermediate channel 252 that is linked together with feed channel 251, with intermediate channel 252 be linked together and be used for the discharge of light impurity such as sand and dust, rice husk, straw, intermediate channel 252, discharge channel 253 all incline to arrange, be favorable to the discharge of light impurity, simultaneously, for the compactness of grain separator overall structure in order to reduce its occupation space, intermediate channel 252 encircle in the circumferencial direction of first separation casing 211.

In order to disperse the grains falling into the protective shell as much as possible, the bottom of the bulk material element 140 is provided with the separation guide plate 230, the separation guide plate 230 comprises a separation inclined surface and a connecting column 231, the separation inclined surface is fixedly connected with the bulk material element 140 through the connecting column 231, the separation inclined surface is conical, and the separation inclined surface is gradually narrowed along the vertical upward direction, so that the significance of the design is that the grains are dispersed by the bulk material element 140 and then fall onto the separation inclined surface, and then are secondarily separated by the separation inclined surface, so that the dispersion degree of the grains is increased.

When the grains fall down through the bulk material element 140, light impurities such as rice hulls, straws and the like mixed in the grains are easily coated on the surfaces of the grains, and the grains are not easily dispersed from the light impurities such as the rice hulls, the straws and the like, so that the light impurities such as the rice hulls, the straws and the like cannot be completely blown to the periphery of the opening at the upper end of the first separation shell 211, and the light impurities such as the rice hulls, the straws and the like are not completely separated, the first separation bumps 232 are arranged on the separation inclined plane of the separation guide plate 230, the first separation bumps 232 are arranged around and at intervals in the circumferential direction of the separation inclined plane, when the grains fall down onto the separation inclined plane, the grains coated with the light impurities such as the rice hulls, the straws and the like collide with the first separation bumps 232, and because the grains are hard in texture and the light impurities such as the rice hulls, the straws and the like are soft in texture, when the grains collide with the first separation bumps 232, the heights of the light impurities such as rice husks and straws which are bounced when the light impurities collide with the first separation bump 232 are different, so that the light impurities such as the rice husks and the straws can be separated from grains, the light impurities such as the rice husks and the straws which are separated from the grains move around the opening at the upper end of the first separation shell 211 under the action of wind force of the air blowing port 244 and fall between the inner wall and the outer wall of the separation disc 224, and then fall into the first impurity discharging channel 250 through the first falling port 227 on the separation disc 224 and are discharged.

The light impurities such as the sand, the rice hulls, the straws and the like falling into the separating disc 224 fall into the first impurity discharging channel 250 through the first blanking port 227 and are discharged, because the wind direction of the air blowing port 244 faces the circumferential direction of the first separating shell 211, the light impurities such as the sand, the rice hulls, the straws and the like fall into the circumferential direction between the inner wall and the outer wall of the separating disc 224, the light impurities such as the sand, the rice hulls, the straws and the like falling into the first blanking port 227 can be discharged through the first impurity discharging channel 250, the light impurities such as the sand, the rice hulls, the straws and the like falling onto the disc surface of the separating disc 224 in the circumferential direction cannot fall into the first blanking port 227, and therefore, the light impurities such as the sand, the rice hulls, the straws and the like which cannot be discharged through the first impurity discharging channel 250 are accumulated between the inner wall and the outer wall of the separating disc 224, and the transmission mechanism 221 arranged on the separating disc 224 can enable more sand, dust, rice hulls, straw and the like on the disc surface between the inner wall and the separating disc 224 to fall into the first impurity discharging channel 227, Light impurities such as rice hulls and straws fall into the first blanking port 227, so that the discharge stability of the light impurities such as sand dust, the rice hulls and the straws is ensured.

As shown in fig. 15 and 17-20, the transmission mechanism 221 includes a transmission motor 221a, a transmission member, a separation ring 223, and a push plate 225, the separation ring 223 is coaxially movably sleeved on the inner wall of the separation disc 224 and can rotate around its own axis, the push plate 225 is provided with a plurality of push plates 225 uniformly surrounding the circumferential direction of the outer circumferential surface of the separation ring 223, the push plate 225 is vertically arranged and located between the inner wall and the outer wall of the separation disc 224, the transmission motor 221a is mounted on the separation disc 224 and the output shaft of the transmission motor 221a is vertically arranged, the output shaft of the transmission motor 221a is connected to the driving part of the transmission member, the driven part of the transmission member is connected to the separation ring 223, through the transmission of the transmission member, the transmission motor 221a can drive the separation ring 223 to rotate around its own axis, the separation ring 223 drives the push plate 225 around the circumferential direction of the outer circumferential surface of the separation ring 223 to move when the separation ring 223 rotates around its own axis, the push plate 225 moves to push light impurities such as sand, rice hulls and straws on the disc surface of the separating disc 224 in the circumferential direction to move and fall into the first blanking port 227, and then fall into the first impurity discharging channel 250 and are discharged.

As shown in fig. 18-19, the transmission member includes a first gear 221b, a second gear 221c, a rotating shaft 221d, and a third gear 221e, the first gear 221b is coaxially and fixedly sleeved outside an output shaft of the transmission motor 221a, the rotating shaft 221d passes through a disc surface of the separating disc 224 and is vertically disposed, the rotating shaft 221d is movably connected with the disc surface of the separating disc 224 and can rotate around its own axis, the second gear 221c is coaxially and fixedly sleeved at one end of the rotating shaft 221d, the third gear 221e is coaxially and fixedly sleeved at the other end of the rotating shaft 221d, the second gear 221c is engaged with the first gear 221b, an inner ring gear 222 engaged with the third gear 221e is coaxially and fixedly sleeved on an inner ring surface of the separating ring 223, the transmission motor 221a is started, the output shaft of the transmission motor 221a rotates to drive the first gear 221b to synchronously rotate and drive the second gear 221c to rotate, the second gear 221c rotates to drive the rotating shaft 221d to synchronously rotate and drive the third gear 221e to rotate, the third gear 221e rotates to drive the inner gear ring 222 to rotate around the axis thereof and drive the separating ring 223 to synchronously rotate, the separating ring 223 drives the push plate 225 in the circumferential direction around the outer circumferential surface of the separating ring 223 to move when rotating, and the push plate 225 moves to push light impurities such as sand, rice husks, straws and the like on the disk surface in the circumferential direction of the separating ring 224 to move and fall into the first blanking port 227, and then fall into the first exhaust channel 250 and are discharged.

As shown in fig. 18, because the separating ring 223 is coaxially and movably sleeved in the separating discs 224, under the influence of the processing precision, when the separating ring 223 rotates, a contact friction force is generated between the separating ring 223 and the inner wall of the separating discs 224, so that the separating discs 224 generate a rotation tendency, and because the separating discs 224 are fixedly connected with the protective shell, the rotation tendency of the separating discs 224 generates a torsion force and easily causes the protective shell to deform, in order to reduce the torsion force, i.e. the friction between the separating ring 223 and the separating discs 224, the bottom of the annulus of the separating ring 223 is provided with a plurality of rollers 226 at regular intervals, and the central axis of the roller 226 is arranged vertically and can rotate on its own axis, the roller 226 comes into contact with the inner wall of the separating discs 224 and rolling friction is generated therebetween, thus, the torque force generated by the tendency of the separation discs 224 to rotate is reduced, thereby reducing the degree of deformation of the shield shell.

As shown in fig. 8 and 21-22, the grain separated and decontaminated by the first separating device 20 enters the second separating device 30, the second separating device 30 is used for separating and decontaminating large-particle impurities in the grain, the second separating device 30 includes a second separating housing 310 communicated with the first separating housing 211, the second separating housing 310 is a cylindrical structure with openings at two ends, a second filter 330 for separating large-particle impurities in the grain is coaxially arranged in the second separating housing 310, the second filter 330 is vertically arranged, the second filter 330 includes a screening section and a blanking section, the blanking section is a blanking pipe 340 connected with the screening section, the screening section is a screening net which is conical and has openings at two ends, the screening net is gradually narrowed along the falling direction of the grain, and the grain can leak through the pores of the screening net, the large granular impurities slide down to the grain blanking section along the surface of the screen and are discharged through the grain blanking section, the grains leak out through the pores of the screen and fall to the periphery of the grain blanking section, in order to perform centralized processing on the grains, a second blanking port 370 is arranged at the side wall of the second separation shell 310, the second blanking port 370 is obliquely arranged and is close to the bottom of the second separation shell 310, a second guide plate 350 is arranged between the blanking section and the second separation shell 310, the second guide plate 350 is obliquely arranged and enables the space between the blanking section and the second separation shell 310 to be in a closed state, the bottom of the second guide plate 350 is close to the joint of the second blanking port 370 and the second separation shell 310, and the grains can slide down to the second blanking port 370 through the surface of the second guide plate 350 and be discharged, and meanwhile, in order to perform centralized processing on the large granular impurities, the third blanking port 380 is obliquely arranged on the side wall of the blanking pipe 340, the third guide plate 360 is obliquely arranged in the blanking pipe 340, the bottom of the third guide plate 360 is close to the joint of the third blanking port 380 and the blanking pipe 340, and large granular impurities can slide to the third blanking port 380 through the surface of the third guide plate 360 and are discharged.

More perfect, foretell screening net's surface is provided with a plurality of direction slats and even interval arrangement, the direction slat be the arc, the one end of direction slat is in screening net's upper end opening part, the other end extends to screening net's lower extreme opening part, the significance of design like this lies in, curved direction slat has increased the distance that cereal glided in screening net surface to comparatively thorough to large granular impurity separation.

More specifically, the circular direction of the upper end opening part of foretell second separation shell 310 on coaxial fixed direction income glassware 320 that is provided with, the direction income glassware 320 include the pan feeding inclined plane, the upper end opening of pan feeding inclined plane and second separation shell 310 between the region be the pan feeding region, form the pan feeding clearance between the bottom on pan feeding inclined plane and the inner wall of second separation shell 310, the pan feeding inclined plane be the toper, along vertical decurrent direction, the pan feeding inclined plane narrows down gradually, the meaning of designing like this lies in, cereal can disperse all around after the slip of pan feeding inclined plane, cereal after the dispersion falls into in the second separation shell 310 through the pan feeding clearance of direction income glassware 320.

The blowing mechanism 240 of the first separating device 20 includes a blower 241 for providing wind force to the blowing port 244, in order to ensure the structural uniformity of the grain separator and the convenience of operation, the blower 241 is mounted on the mounting frame 40, the air outlet of the blower 241 is communicated with the blowing port 244 of the blowing mechanism 240 through a ventilation element, the ventilation element includes a ventilation duct 242 communicated with the air outlet of the blower 241, a ventilation rod 243 connected between the ventilation duct 242 and the blowing port 244, the ventilation rod 243 is a long straight rod, the ventilation rod 243 is coaxially arranged with the first separating shell 211 and the second separating shell 310, one end of the ventilation rod 243 is connected with the ventilation duct 242, and the other end of the ventilation rod 243 sequentially passes through the third guide plate 360, the second filter 330, the guide feeder 320 and the center of the first separator 212 to vertically extend upwards and is connected with the blowing port 244, when the blowing fan 241 is operated, the air outlet of the blowing fan 241 exhales and delivers the wind to the ventilation duct 242, and then the wind is delivered to the air blowing port 244 through the ventilation rod 243.

More specifically, in order to make the air discharged from the air blowing port 244 more uniform and dispersedly blow to the opening at the upper end of the first separation case 211, the air blowing port 244 adopts an air discharging manner of rotating air blowing, that is, the ventilation rod 243 can rotate and drive the air blowing port 244 to rotate synchronously.

As shown in fig. 23-25, the ventilation rod 243 includes a movable section and a fixed section, the fixed section is fixedly disposed, the movable section is movably connected with the fixed section and the movable section can rotate around its axis, the ventilation duct 242 is communicated with the fixed section of the ventilation rod 243, the air blowing port 244 is communicated with the movable section of the ventilation rod 243, the air blowing mechanism 240 further includes a blowing motor 246 for driving the movable section of the ventilation rod 243 to rotate, the blowing motor 246 is mounted on the mounting frame 40 and the central axis of the output shaft of the blowing motor 246 is parallel to the central axis of the ventilation rod 243, the driving wheel 247 is coaxially fixedly sleeved outside the output shaft of the blowing motor 246, the driven wheel 248 is coaxially fixedly sleeved outside the movable section of the ventilation rod 243, the driving wheel 247 and the driven wheel 248 are gears/pulleys and can be engaged/belt-driven by gears, and the blowing motor 246 is started, the output shaft of the blowing motor 246 rotates to drive the driving wheel 247 to synchronously rotate and drive the driven wheel 248 to rotate, the driven wheel 248 rotates to drive the movable section of the ventilation rod 243 to rotate and drive the blowing port 244 to rotate, and the blowing port 244 rotates and exhausts air to enable wind power to be more uniformly dispersed.

More specifically, because one end of the ventilation rod 243 is connected to the ventilation duct 242, and the other end of the ventilation rod 243 sequentially passes through the centers of the third guide plate 360, the second filter 330, the guide material feeder 320, and the first separator 212, and extends vertically upward and is connected to the air blowing port 244, a friction force exists between the movable section of the ventilation rod 243 and the first separator 212, the guide material feeder 320, the second filter 330, and the third guide plate 360 during the rotation process, so as to reduce the rotation efficiency of the movable section of the ventilation rod 243, in order to improve the rotation efficiency of the movable section of the ventilation rod 243, the protective element 260 is coaxially and movably sleeved outside the movable section of the ventilation rod 243, the protective element 260 comprises a sleeve 261, a limit shell 262, and a bearing 263, the sleeve 261 is coaxially and movably sleeved outside the movable section of the ventilation rod 243, the limit shell 262 is coaxially and movably sleeved at the end of the sleeve 261 and is close to the air blowing port 244, the limiting shell 262 is fixedly connected with the sleeve 261, the bearing 263 is coaxially and movably sleeved at the end of the movable section of the ventilation rod 243 and is close to the air blowing port 244, the end of the sleeve 261 is provided with a built-in groove matched with the bearing 263, and the bearing 263 is located between the ventilation rod 243 and the built-in groove of the sleeve 261.

More specifically, the both ends of the fixed section of ventilation pole 243 be provided with the opening, an opening communicates with the activity section of ventilation pole 243, another opening matching is provided with sealed lid 245, the meaning of design like this lies in, when blowing mouth 244 stops blowing, light impurity such as a small amount of sand and dust, the rice husk, the straw gets into in ventilation pole 243 and causes ventilation pole 243's jam through blowing mouth 244, sealed lid 245 can open the lower extreme opening of the fixed section of ventilation pole 243 and in time clear up the light impurity in ventilation pole 243, thereby the unobstructed of ventilation pole 243 has been guaranteed.

When the grain separator works, because the grains have different water contents, namely different dryness and wetness degrees of the grains, and when the water content of the grains is higher, the volumes of the grains are relatively expanded, the grains enter the feeding device 10, the first separating device 20 and the second separating device 30 through the hopper, and meanwhile, when the grains contain more light impurities such as rice husks, straws and the like, the feeding and separating impurity removal speeds of the grains are further reduced, so that the blockage of the hopper/the blockage phenomenon in the first separating device 20 is easily caused, the separating impurity removal of the grains is stopped, and the working motor is easily damaged when the grains are blocked for a long time, therefore, a vibrator is arranged on the machine body of the grain separator, preferably, the vibrator is arranged on the side wall of the second blanking port 370, and the design has the significance that the second blanking port 370 is a discharge channel of pure grains, when the pure grains are discharged by the vibration of the vibrator, the grains in the first separating device 20 can smoothly enter the second separating device 30.

The mounting frame 40 comprises a limiting frame 410 for mounting a grain separator body and a base 430 fixedly arranged on the ground, when the vibrator vibrates, the grain separator body vibrates and causes the mounting frame 40 to vibrate, because the mounting frame 40 is mounted on the ground, the vibration amplitude of the grain separator is smaller, thereby influencing the separation effect of the grain separator, in order to increase the vibration amplitude of the grain separator and further improving the separation effect of the grain separator, an elastic member 420 is arranged between the limiting frame 410 and the base 430, the elastic member 420 is respectively arranged at four corners at the bottom of the limiting frame 410, the elastic member 420 is a spring, one end of the elastic member 420 is connected with the base 430, the other end is connected with the limiting frame 410, the stability of the grain separator body can be ensured by arranging the four elastic members 420, and simultaneously, in order to improve the structural stability of the blower 241 and the blowing motor 246, the blower 241 and the blower motor 246 are mounted on the limiting frame 410, and when the limiting frame 410 vibrates, the blower 241 and the blower motor 246 are stable in structure.

A separation edulcoration method of edulcoration equipment for carrying out multistage separation to cereal, its step lies in:

firstly, feeding grains;

s1, a feeding motor is started, an output shaft of the feeding motor rotates to drive a first rotating part 131 to rotate around the axis of the first rotating part 131, the first rotating part 131 can drive a first connecting rod 133 and a second connecting rod 132 to move and pull a first gate plate 134 and a second gate plate 135 to move close to or away from each other along the guiding direction of a first guide plate 121 and a second guide plate 122, when the first gate plate 134 and the second gate plate 135 are close to each other, the first gate plate 134 and the second gate plate 135 are switched from an open state to a closed state, when the first gate plate 134 and the second gate plate 135 are away from each other, the first gate plate 134 and the second gate plate 135 are switched from the closed state to the open state, and the first gate plate 134 and the second gate plate 135 are intermittently opened and closed, so that the feeding amount of grains entering the first separating device 20 can be controlled;

(II) primary separation and impurity removal process of grains;

s2, small granular impurities leak out through the pores of the filtering screen of the first separating mechanism 210, grains slide to the grain discharging section along the surface of the filtering screen and enter the second separating device 30 through the grain discharging section, the small granular impurities leak out through the pores of the filtering screen and fall to the periphery of the grain discharging section, and the small granular impurities can slide to the first outlet 214 through the surface of the first guide plate 213 and are discharged;

s3, the grains dispersed by the feeding guide block 142 fall into the opening at the upper end of the first separation shell 211 through the feeding gap of the feeding tray 141, the blowing mechanism 240 generates wind power and conveys the wind power to the blowing port 244, the blowing port 244 blows air to the periphery of the opening at the upper end of the first separation shell 211 and lifts dust, rice husks and straws mixed in the grains, the grains collide with the first separation bump 232, light impurities such as the rice husks and straws collide with the first separation bump 232 at different heights, the light impurities such as the rice husks and the straws are separated from the grains, the light impurities such as the rice husks and the straws separated from the grains move to the periphery of the opening at the upper end of the first separation shell 211 under the wind power of the blowing port 244 and fall between the inner wall and the outer wall of the separation tray 224, the transmission motor 221a is started, the output shaft of the transmission motor 221a rotates to drive the first gear 221b to synchronously rotate and the second gear 221c to rotate, the second gear 221c rotates to drive the rotating shaft 221d to synchronously rotate and drive the third gear 221e to rotate, the third gear 221e rotates to drive the inner gear ring 222 to rotate around the axis of the third gear and drive the separating ring 223 to synchronously rotate, the separating ring 223 rotates to drive the push plate 225 around the circumferential direction of the outer circumferential surface of the separating ring 223 to move, and the push plate 225 moves to push light impurities such as sand, rice husks, straws and the like on the disk surface of the separating disk 224 in the circumferential direction to move and fall into the first blanking port 227, and then fall into the first exhaust channel 250 and are discharged;

(III) secondary separation and impurity removal process of the grains;

s4, the grains after being separated and purified by the first separating device 20 enter the second separating device 30, large granular impurities in the grains slide to a grain blanking section along the surface of the screening net and are discharged through the grain blanking section, the grains leak through the pores of the screening net and fall to the periphery of the grain blanking section, the grains can slide to the second blanking port 370 through the surface of the second guide plate 350 and are discharged, and the large granular impurities can slide to the third blanking port 380 through the surface of the third guide plate 360 and are discharged.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention; various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The impurity removing equipment is used for carrying out multi-stage separation on grains and is characterized by comprising an installation frame and a separation system used for separating and removing impurities from the grains, wherein the separation system is arranged on the ground through the installation frame and comprises a first separation device, a second separation device and a feeding device used for placing the grains into the first separation device;

the feeding device also comprises a feeding mechanism arranged on the feeding upper end seat and the feeding lower end seat, the feeding mechanism comprises a first gate plate and a second gate plate which are arranged between the feeding upper end seat and the feeding lower end seat, the first gate plate and the second gate plate are horizontally arranged, the motion state between the first gate plate and the second gate plate comprises an opening state and a closing state, and the opening state and the closing state can be freely switched, and the feeding mechanism also comprises a feeding control member for controlling the opening and closing of the first gate plate and the second gate plate;

the feeding control component also comprises a second rotating part, a third connecting rod and a fourth connecting rod, the second rotating part is movably arranged at the side wall of the feeding opening of the feeding lower end seat and is opposite to and coaxially arranged with the first rotating part, the second rotating part and the first rotating part, the third connecting rod and the second connecting rod, and the fourth connecting rod and the first connecting rod are arranged in parallel, shaft core lines between the second rotating part and the third connecting rod, between the second rotating part and the fourth connecting rod, between the third connecting rod and the second flashboard, and between the fourth connecting rod and the first flashboard are horizontally arranged and are perpendicular to the guide directions of the first guide plate and the second guide plate;

the end parts of the first gate plate and the second gate plate, which are close to each other, are provided with guide inclined planes, and the guide inclined planes are convenient for grains to gather to a feeding port of a feeding lower end seat;

a connecting part communicated with the first separating device is arranged below a feeding port of the feeding lower end seat, the connecting part is of a cylindrical structure with openings at two ends, the grains are gathered through the guide inclined planes of the first gate plate and the second gate plate and enter the first separating device through the feeding port, and a bulk cargo element is arranged between the connecting part and the first separating device and can disperse the gathered grains;

the bulk cargo element comprises a feeding disc and a bulk cargo guide block, the feeding disc is installed at an opening at the bottom of the connecting part in a matching manner, a feeding gap is formed in the feeding disc, the feeding guide block is arranged at the center of the feeding disc, and the feeding guide block is conical and is vertically and upwards arranged;

the first separation device comprises a protective shell communicated with the feeding device, a first separation mechanism for separating small granular impurities in grains, and a second separation mechanism for separating sand dust or rice hulls or straws mixed in the grains, wherein the first separation mechanism and the second separation mechanism are arranged in the protective shell;

the first separation mechanism comprises a first separation shell, the first separation shell is arranged in the protective shell and is of a cylindrical barrel structure with openings at two ends, a first filter for separating small granular impurities in grains is coaxially arranged in the first separation shell and is vertically arranged, the first filter comprises a filtering separation section and a grain discharge section, the filtering separation section is a filtering screen, the filtering screen is conical and is provided with openings at two ends, the filtering screen is gradually narrowed along the falling direction of the grains, a first outlet is arranged at the side wall of the first separation shell, the first outlet is obliquely arranged and is close to the bottom of the first separation shell, a first guide plate is arranged between the grain discharge section and the first separation shell, the first guide plate is obliquely arranged and enables the space between the grain discharge section and the first separation shell to be in a closed state, the bottom of the first guide plate is close to the joint of the first outlet and the first separation shell;

the second separation mechanism comprises a separation disc, a first blanking port arranged on the separation disc, a first impurity discharging channel communicated with the first blanking port and used for discharging sand dust or rice husks or straws mixed in grains, the second separating mechanism also comprises a blowing mechanism, the blowing mechanism comprises a blowing port, the blowing port is arranged at the opening at the upper end of the first separating shell, the wind direction of the blowing port is horizontally arranged and faces to the periphery of the opening at the upper end of the first separating shell, the separation disc is coaxially and fixedly sleeved outside the first separation shell, two coaxial unequal-diameter side walls are vertically arranged in the circumferential direction of the separation disc in an extending manner, the first blanking port is positioned between the inner wall and the outer wall, and the outer wall of the separating disc is fixedly connected with the protective shell through a fastener and is in close contact with the protective shell;

the bottom of the bulk cargo element is provided with a separation guide plate, the separation guide plate comprises a separation inclined plane and a connecting column, the separation inclined plane is fixedly connected with the bulk cargo element through the connecting column, the separation inclined plane is conical and gradually narrows along the vertical upward direction, a first separation lug is arranged on the separation inclined plane of the separation guide plate, and the first separation lug surrounds and is arranged in the circumferential direction of the separation inclined plane at intervals;

the second separation device comprises a second separation shell communicated with the first separation shell, the second separation shell is of a cylinder structure with two open ends, a second filter used for separating large granular impurities in grains is coaxially arranged in the second separation shell and is vertically arranged, the second filter comprises a screening section and a blanking section, the blanking section is a blanking pipe connected with the screening section, the screening section is a screening net which is conical and has two open ends, the screening net is gradually narrowed along the falling direction of the grains, a second blanking port is arranged on the side wall of the second separation shell, the second blanking port is obliquely arranged and close to the bottom of the second separation shell, a second guide plate is arranged between the blanking section and the second separation shell, the second guide plate is obliquely arranged and enables the space between the blanking section and the second separation shell to be in a closed state, the bottom of the second guide plate is close to the joint of the second blanking port and the second separation shell, a third blanking port is obliquely arranged on the side wall of the blanking pipe, a third guide plate is obliquely arranged in the blanking pipe, and the bottom of the third guide plate is close to the joint of the third blanking port and the blanking pipe;

the blowing mechanism of the first separating device comprises a blower for providing wind power for a blowing port, the blower is installed on a mounting frame, the air outlet of the blower is communicated with the blowing port of the blowing mechanism through a ventilation element, the ventilation element comprises a ventilation pipeline communicated with the air outlet of the blower and a ventilation rod connected between the ventilation pipeline and the blowing port, the ventilation rod is a long straight rod, the ventilation rod is coaxially arranged with the first separating shell and the second separating shell, one end of the ventilation rod is connected with the ventilation pipeline, and the other end of the ventilation rod sequentially penetrates through the third guide plate, the second filter, the guide material inlet device and the center of the first separator to vertically extend upwards and is connected with the blowing port.

2. An impurity removing device for multi-stage separation of grains according to claim 1, wherein the mounting frame comprises a limiting frame for mounting the grain separator body and a base fixedly arranged on the ground, elastic members are arranged between the limiting frame and the base and respectively arranged at four corners of the bottom of the limiting frame, the elastic members are springs, one end of each elastic member is connected with the base, and the other end of each elastic member is connected with the limiting frame;

the first blanking ports are provided with a plurality of first blanking ports which are uniformly arranged in the circumferential direction of the separating disc at intervals, the first blanking ports are vertically arranged, the bottom of each first blanking port is connected with a first impurity discharging channel in a matching mode, each first impurity discharging channel comprises a feeding channel, a middle channel and a discharging channel, the feeding channels are communicated with the first blanking ports in a matching mode, the middle channels are communicated with the feeding channels, the discharging channels are communicated with the middle channels and used for discharging sand, dust, rice husks or straws, the middle channels and the discharging channels are obliquely arranged, and the middle channels surround the circumferential direction of the first separating shell;

the separating disc is provided with a transmission mechanism, the transmission mechanism comprises a transmission motor a, a transmission component, a separating ring and a push plate, the separating ring is coaxially and movably sleeved on the inner wall of the separating disc and can rotate around the axis of the separating ring, the push plate is provided with a plurality of push plates which uniformly surround the circumferential direction of the outer circumferential surface of the separating ring, the push plates are vertically arranged and are positioned between the inner wall and the outer wall of the separating disc, the transmission motor a is arranged on the separating disc, the output shaft of the transmission motor a is vertically arranged, the output shaft of the transmission motor a is connected to the driving part of the transmission component, and the driven part of the transmission component is connected with the separating ring;