CN209985783U - Grain cleaning machine with slag discharging device - Google Patents

Abstract

The utility model discloses a grain cleaning machine with a slag discharging device, which is characterized by comprising a feeding dust removing device, a vibrating screen, a slag discharging device, a primary dust removing device, a secondary dust removing device, a tertiary dust removing device and a quaternary dust removing device; the slag discharging device is communicated with the vibrating screen; the primary dust removal device is communicated with the vibrating screen; the secondary dust removal device is communicated with the air outlet end of the primary dust removal device; the third-stage dust removal device comprises a first cyclone separator, the first cyclone separator is communicated with the slag discharge device, and the first cyclone separator is communicated with the second-stage dust removal device; the four-stage dust removal device comprises a second cyclone separator and a discharge assembly, and the second cyclone separator is communicated with the two-stage dust removal device; the ejection of compact subassembly includes two slag pipes, and the one end of two slag pipes and the end homogeneous phase intercommunication of slagging tap of second cyclone are linked together, and the other end and the feeding dust collector of one slag pipe are linked together, and the other end and the slag discharging device of another slag pipe are linked together. The utility model has few slag discharge ports.

Description

Grain cleaning machine with slag discharging device

Technical Field

The utility model relates to a grain dust removal machinery, concretely relates to take slag discharging device's grain descaling machine.

Background

Grain is before getting into the granary and storing, carries out drying dehydration earlier, then removes dust through dust collecting equipment to grain and handles, and current grain equipment sets up a plurality of dust removal units on an automobile body, and each dust removal unit all has a scum hole, and the dust removal unit separates the dust in the grain from grain, then discharges from the scum hole of dust removal unit, and the workman uses the snakeskin bag to catch the dust of following the scum hole discharge of dust removal unit. The existing grain dust removing equipment has defects, because the number of the dust removing units is large, each dust removing unit is provided with a slag discharge port, workers need to pay attention to the filling degree of snake skin bags at multiple points all the time, the slag discharge ports of the dust removing units are distributed at all places of the grain dust removing equipment, great replacing pressure is generated for the workers, and each dust removing unit is unscientific in that one slag discharge port is arranged.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome above-mentioned technique not enough, provide a take slag discharging device's grain descaling machine, solve among the grain dust collecting equipment among the prior art each dust removal unit all be provided with one row cinder notch and be unfavorable for the workman to catch the technical problem of discharged dust.

In order to achieve the technical purpose, the technical scheme of the utility model provides a grain cleaning machine with a slag discharging device, which is characterized by comprising a feed hopper, a feeding dust removing device, a vibrating screen, at least one slag discharging device, a primary dust removing device, a secondary dust removing device, a tertiary dust removing device and a quaternary dust removing device; the feeding dust removal device comprises a cyclone separating piece and a dust hood, the dust hood is arranged opposite to the feeding hopper, and the air outlet end of the dust hood is communicated with the air inlet end of the cyclone separating piece; the feeding end of the vibrating screen is communicated with the discharging end of the feeding hopper; the slag inlet end of the slag discharging device is communicated with the slag discharging end of the vibrating screen; the primary dust removal device comprises an air separator, at least one first dust suction fan and an ash-gas separation component, the air separator is provided with a feeding hole, a discharging hole and a dust outlet, and the feeding hole of the air separator is communicated with the discharging end of the vibrating screen; the air inlet end of the first dust collection fan is communicated with the dust outlet of the air separator; the ash-gas separation component comprises a gas inlet, a gas outlet and a slag discharge port, and the gas inlet of the ash-gas separation component is communicated with the gas outlet end of the first dust collection fan; the secondary dust removal device comprises a middle pipe, and the middle pipe is communicated with an air outlet of the ash-gas separation component; the three-stage dust removal device comprises at least one first cyclone separator and at least one second dust collection fan, and the slag outlet end of the first cyclone separator is communicated with the slag inlet end of the slag outlet device; the air inlet end of the second dust collection fan is communicated with the middle pipe, and the air outlet end of the second dust collection fan is communicated with the air inlet end of the first cyclone separator; the four-stage dust removal device comprises at least one second cyclone separator, at least one third dust collection fan and a discharge assembly, wherein the air inlet end of the third dust collection fan is communicated with the middle pipe, and the air outlet end of the third dust collection fan is communicated with the air inlet end of the second cyclone separator; the ejection of compact subassembly includes two row's sediment pipes, two arrange the one end of sediment pipe with the slag outlet end homogeneous phase intercommunication of second cyclone, one arrange the other end of sediment pipe with the slag outlet end of first cyclone communicates mutually, another arrange the other end of sediment pipe with slag discharging device's the slag inlet is linked together.

Compared with the prior art, the beneficial effects of the utility model include: the grain cleaning machine with the slag discharging device of the utility model has few slag discharging ports.

Drawings

Fig. 1 is a three-dimensional schematic view of the present invention;

FIG. 2 is a schematic illustration of the partial amplification at M in FIG. 1;

fig. 3 is a three-dimensional schematic view of another perspective of the present invention;

FIG. 4 is a schematic illustration of the partial amplification at P in FIG. 3;

fig. 5 is a schematic structural diagram of the present invention;

FIG. 6 is a schematic illustration of the partial amplification at Q of FIG. 5;

FIG. 7 is a schematic illustration of the partial amplification at N in FIG. 1;

fig. 8 is a three-dimensional schematic view of yet another perspective of the present invention;

fig. 9 is a top view of the present invention;

fig. 10 is a schematic illustration of the partial amplification at R in fig. 9;

fig. 11 is a schematic structural view of another perspective of the present invention;

FIG. 12 is a three-dimensional schematic view of the dust collection assembly and the ash-gas separation assembly of the present invention;

FIG. 13 is a three-dimensional schematic view of a slag tapping device according to the present invention;

fig. 14 is a schematic illustration of the partial amplification at S in fig. 13;

fig. 15 is a schematic illustration of the partial amplification at T in fig. 13;

FIG. 16 is a three-dimensional schematic view of the second tapping pipe, the third tapping pipe, the ring discharge unit, the anti-slip unit and the fixing unit;

fig. 17 is a schematic illustration of the partial amplification at U in fig. 16;

fig. 18 is a schematic illustration of the partial amplification at V in fig. 16;

fig. 19 is a three-dimensional schematic view of the air volume adjusting valve of the present invention;

fig. 20 is a three-dimensional schematic view of the air volume control member of the present invention;

fig. 21 is a three-dimensional schematic view of the air volume adjusting member of the present invention;

fig. 22 is a three-dimensional schematic view of the air volume adjusting assembly of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The first embodiment is as follows:

the utility model provides a take grain descaling machine of slag discharging device, as shown in fig. 1 to 22, including automobile body a, feeder hopper b, feeding dust collector c, shale shaker d, at least one slag discharging device e, dust collection device f, one-level dust collector g, second grade dust collector h, tertiary dust collector i, level four dust collector j, conveyor k, ejection of compact dust collector l.

The feed hopper b is horizontally arranged on the vehicle body a and is arranged close to one end of the vehicle body a.

The feeding dust removal device c comprises a dust hood c1, a plurality of first dust suction pipes c2, at least one first fan c3 and at least one cyclone separating piece c 4; the dust hood c1 is arranged on the feed hopper b, one end of the first dust suction pipe c2 penetrates through the inner wall of the dust hood c1, and the other end of the first dust suction pipe c2 is connected with the air inlet end of the first fan c 3; the cyclone separator c4 comprises a first dust removing cylinder c41, a second dust removing cylinder c42, a third dust removing cylinder c43, a fourth dust removing cylinder c44, a fifth dust removing cylinder c45 and a first fixed pipe c46 which are vertically arranged, the first dust removing cylinder c41, the second dust removing cylinder c42, the third dust removing cylinder c43, the fourth dust removing cylinder c44 and the fifth dust removing cylinder c45 are sequentially communicated, the first dust removing cylinder c41 is arranged on the vehicle body a, an air inlet is formed in the peripheral surface of the first dust removing cylinder 41, an air outlet is formed in one end, far away from the second dust removing cylinder c42, of the first dust removing cylinder c41, and the air inlet of the first dust removing cylinder c41 is communicated with the air outlet end of the first fan c 3; the first fixing pipe c46 is coaxially connected to the inner wall of the air outlet hole of the first dust removing cylinder c41, and one end of the first fixing pipe c46 extends toward the second dust removing cylinder c 42.

Preferably, the first dust removing cylinder c41 is square, and the second dust removing cylinder c42 is cylindrical; the diameter of the third dust removing cylinder c43 becomes smaller in the direction away from the second dust removing cylinder c 42; the fourth dust removing cylinder c44 is cylindrical, and the diameter of the fourth dust removing cylinder c44 is larger than that of the small-diameter end of the third dust removing cylinder c 43; the diameter of the fifth dust removing cylinder c45 is continuously reduced along the direction far away from the fourth dust removing cylinder c44, and a discharge hole is formed at one end of the fifth dust removing cylinder c45 far away from the fourth dust removing cylinder c 44.

The cyclone c4 can remove most of dust in the mixture of air and dust; the cyclone separating piece c4 comprises a first dust removing cylinder c41, a second dust removing cylinder c42, a third dust removing cylinder c43, a fourth dust removing cylinder c44, a fifth dust removing cylinder c45 and a first fixing pipe c46, and has the advantages of simple structure and low manufacturing cost; by arranging the first fixing pipe c46, the end face of one end of the first fixing pipe c46 is arranged close to the second dust removing cylinder c42, when air containing dust enters the first dust removing cylinder c41, the dust and the air impact the outer wall of the communicating pipe g33 at a certain speed, so that the dust and the air can be separated, the dust moves downwards under the action of gravity, the air moves upwards, and the air and the dust are prevented from directly entering the atmosphere from the top of the first dust removing cylinder c 41; when heavier dust and part of air enter the third dust removing cylinder c43, as the diameter of the third dust removing cylinder c43 is continuously reduced in the direction away from the second dust removing cylinder c42, the air and the dust are squeezed with each other, so that the air rises upwards from the center of the third dust removing cylinder c43, excessive air is prevented from entering the fourth dust removing cylinder c44 and the fifth dust removing cylinder c45, and excessive air is prevented from entering the collecting bag; after dust enters the fourth dust removing cylinder c44, when a worker changes another collecting bag, the discharge end of the fifth dust removing cylinder c45 is closed, dust removal is always carried out, the dust continuously enters the fourth dust removing cylinder c44, the diameter of the fourth dust removing cylinder c44 is larger than that of the small-diameter end of the third dust removing cylinder c43, more dust can be temporarily contained, dust removal cannot be carried out, and the collecting bag can be conveniently changed by the worker.

The vibrating screen d comprises a shell d1, a rubber pad d2 and at least one fixing piece d3, wherein the shell d1 is obliquely arranged on the vehicle body a, the shell d1 is provided with a feeding hole, a discharging hole and a slag hole, and the shell d1 is provided with a cleaning window.

The feed inlet of the shell d1 is communicated with the discharge end of the feed hopper b; the rubber pad d2 is arranged opposite to the cleaning window, a plurality of mounting holes are formed in the rubber pad d2, the mounting holes are arranged close to one side of the rubber pad d2, and the size of the rubber pad d2 is larger than that of the cleaning window; the fixing pieces d3 are arranged corresponding to the mounting holes one by one, the fixing piece d3 comprises a fixing rod d31, a fixing block d32 and a flat pad d33, the fixing rod d31 penetrates through the corresponding mounting hole and is connected to the shell d1, and the outer peripheral surface of the fixing rod d31 is provided with external threads; the fixing rod d31 is sleeved with the flat pad d33, the flat pad d33 abuts against one end, far away from the shell d1, of the rubber pad d2, a threaded hole is formed in the fixing block d32 along the axial direction of the fixing rod d31, the fixing block d32 is in threaded connection with the fixing rod d31 through the threaded hole, and the fixing block d32 abuts against one end, far away from the shell d1, of the flat pad d 33. Preferably, the number of the fixing pieces d3 is two.

By arranging the rubber pad d2 and the fixing piece d3, when the interior of the vibrating screen d needs to be cleaned, the interior of the vibrating screen d can be cleaned by directly lifting the rubber pad d2, so that the cleaning is convenient and quick; when the vibrating screen d works, vibration is always generated, and because the rubber pad d2 has a good damping effect, no harsh noise is generated between the rubber pad d2 and the shell d1 of the vibrating screen d; because rubber pad d2 is soft and have elasticity, can laminate the surface of clearance window department of casing d1, prevent that dust and gas in shale shaker d from outwards escaping from clearance window.

The slag discharging devices e and the cyclone separating pieces c4 are arranged in a one-to-one correspondence mode, and each slag discharging device e comprises a slag discharging assembly e1, a supporting assembly e2 and a tightening assembly e 3;

the slag tapping assembly e1 comprises a feeding pipe e11, a discharging pipe e12, a hollow pipe e13 and a retaining ring e14, wherein the feeding pipe e11 is arranged on the vehicle body a, and the feeding end of the feeding pipe e11 is arranged below a slag tapping hole of a shell d1 of the vibrating screen d; the discharge pipe e12 is arranged below the feed pipe e11, and one end of the discharge pipe e12 is connected with one end of the feed pipe e 11; one end of a hollow tube e13 is connected with the other end of the discharge tube e12, and a retaining ring e14 is coaxially sleeved at the other end of the hollow tube e 13. Preferably, the hollow tube e13 increases in diameter in the direction away from the tapping tube e 12.

The support assembly e2 comprises a first support e21 and a second support e22, the first support e21 comprises a first connecting rod e211 and a first anti-slip head e212, one end of the first connecting rod e211 is horizontally connected to the outer wall of the discharge pipe e12 along the radial direction, and the first connecting rod e211 is arranged close to the hollow pipe e 13; the first anti-slip head e212 is disposed at the other end of the first connecting rod e 211. Preferably, the first support e21 is a long bolt, which is convenient for purchase and low in cost.

The second supporting member e22 includes a second connecting rod e221 and a second anti-slip head e222, the second connecting rod e221 is radially disposed on the outer wall of the discharging pipe e12 and disposed on the side of the outer wall of the discharging pipe e12 away from the first connecting rod e211, the second connecting rod e221 is disposed near the hollow pipe e13, and the second anti-slip head e222 is disposed on the end of the second connecting rod e221 away from the outer wall of the discharging pipe e 12. Preferably, the length of the second connecting rod e221 is greater than that of the first connecting rod e211, and the second supporting member e22 may be a long bolt, which is convenient to purchase and has low cost.

The fastening assembly e3 comprises a connecting piece e31, a supporting rod e32, an elastic fastening belt e33 and a hook piece e34, wherein the connecting piece e31 is formed by bending a rod and comprises a third connecting rod e311 and an annular rod e312, one end of the third connecting rod e311 is arranged on the outer wall of the discharge pipe e12, the third connecting rod e311 is arranged close to the hollow pipe e13, and the annular rod e312 is arranged at the other end of the third connecting rod e 311.

One end of the supporting rod e32 is connected to the third connecting rod e311, and the other end of the supporting rod e32 is disposed away from the outer wall of the tapping pipe e 12.

The elastic tie e33 is connected to the connecting member e31, preferably, one end of the elastic tie e33 passes through the loop bar e312, and the elastic tie e33 is fixed to the loop bar e 312; a hooking piece e34 is connected to the other end of the elastic tying band e33, and a hooking piece e34 is detachably connected to the first connecting rod e 211. Preferably, the hooking member e34 is a metal hook.

The bag mouth of the snakeskin bag can be hung on by arranging the first connecting rod e211 and the first anti-skid head e212

The snakeskin bag is fixed on the first anti-skid head e212 through the elastic tying belt e33 and the hook piece e34 without manually holding the snakeskin bag all the time; the second connecting rod e221 and the second anti-skid head e222 are arranged, and the second connecting rod e221 is arranged on one side, far away from the first connecting rod e211, of the outer wall of the discharge pipe e12, so that the snakeskin bag can be further hooked, and the snakeskin bag is prevented from slipping; by arranging the supporting rod e32, when the snakeskin bag is fixed on the discharging pipe e12 by the elastic binding belt e33, the snakeskin bag can be spread and limited to slide downwards; by arranging the check ring e14, and the diameter of the check ring e14 is continuously increased along the direction close to the discharge pipe e12, the bag mouth of the snakeskin bag can be opened, and dust can conveniently enter the snakeskin bag; through setting up hollow tube e13, and hollow tube e13 is along keeping away from the direction diameter of discharging pipe e12 and constantly increasing, can make things convenient for the dust to pass through hollow tube e13, can not block up at hollow tube e13 discharge end.

The dust collecting device f comprises a screw conveyer f1, a dust outlet assembly f2, a pressure reduction dust collection pipe f3 and an air volume adjusting assembly f4, wherein the screw conveyer f1 is arranged on the vehicle body a; the dust discharging assembly f2 comprises a discharging unit f21, an anti-skidding unit f22 and a fixing unit f23, wherein the discharging unit f21 comprises a first slag discharging pipe f211, a second slag discharging pipe f212, a third slag discharging pipe f213 and a ring body f214, the first slag discharging pipe f211, the second slag discharging pipe f212 and the third slag discharging pipe f213 are sequentially communicated, the feeding end of the first slag discharging pipe f211 is communicated with the discharging end of a spiral conveyor f1, the ring body f214 is coaxially sleeved at one end, far away from the second slag discharging pipe f212, of the third slag discharging pipe f213, and the diameter of the ring body f214 is continuously increased along the direction close to the second slag discharging pipe f 212; preferably, the third tapping pipe f213 has an increasing diameter in a direction away from the second tapping pipe f 212.

The anti-skid unit f22 comprises a first anti-skid unit f221 and a second anti-skid unit f222, the first anti-skid unit f221 comprises a first anti-skid rod f2211 and a first connecting head f2212, one end of the first anti-skid rod f2211 is horizontally connected to the outer wall of the third slag outlet pipe f213, and the first anti-skid rod f2211 is arranged close to the second slag outlet pipe f 212; the first connector f2212 is arranged at the other end of the first antiskid rod f 2211; preferably, the first anti-slip unit f221 is a long bolt, which is convenient to purchase and has low cost.

The second anti-slip unit f222 includes a second anti-slip rod f2221 and a second connector f2222, the second anti-slip rod f2221 is radially disposed on the outer wall of the third slag discharging pipe f213, and is disposed on a side of the outer wall of the third slag discharging pipe f213, which is far away from the first anti-slip rod f2211, the second anti-slip rod f2221 is disposed near the third slag discharging pipe f213, and the second connector f2222 is disposed at an end of the second anti-slip rod f2221, which is far away from the outer wall of the third slag discharging pipe f 213. Preferably, the length of the second anti-slip bar f2221 is greater than that of the first anti-slip bar f2211, and the second anti-slip unit f222 is a long bolt, so that the anti-slip device is convenient to purchase and has low cost.

The fixing unit f23 comprises a fixing part f231, a supporting column f232, a fixing belt f233 and a hooking part f234, the fixing part f231 is formed by bending a rod, the fixing part f231 comprises a third sliding rod f2311 and a ring-shaped column f2312, one end of the third sliding rod f2311 is arranged on the outer wall of the third slag discharging pipe f213, the third sliding rod f2311 is arranged close to the third slag discharging pipe f213, and the ring-shaped column f2312 is arranged at the other end of the third sliding rod f 2311;

one end of the supporting column f232 is connected to the third sliding rod f2311, and the other end of the supporting column f232 is far away from the outer wall of the third slag outlet pipe f 213.

One end of the fixing strap f233 is connected to the fixing portion f231, preferably, one end of the fixing strap f233 passes through the annular column f2312, and the fixing strap f233 is fixed to the annular column f 2312;

the hooking portion f234 is connected to the other end of the fixing strap f233, and the hooking portion f234 is detachably connected to the first anti-slip lever f 2211. Preferably, the hooking portion f234 is a metal hook.

One end of the pressure reduction dust collection pipe f3 is communicated with the discharge end of the screw conveyor f1, and the communication position is opposite to the communication position of the first slag discharge pipe f211 and the screw conveyor f 1;

the air volume adjusting assembly f4 comprises a rotating plate f41, a central shaft f42, a threaded rod f43, two connecting nuts f44 and a disk f45, wherein the central shaft f42 radially and rotatably penetrates through the pressure reduction dust collection pipe f3, the rotating plate f41 is arranged on the central shaft f42 and is arranged outside the pressure reduction dust collection pipe f3, an arc-shaped hole is circumferentially formed in the rotating plate f41 along the central shaft f42, the arc-shaped hole axially penetrates through the rotating plate f41 along the central shaft f42, and one end of the threaded rod f43 penetrates through the arc-shaped hole of the rotating plate f41 and is connected to the outer wall of the pressure reduction dust collection pipe f 3; the two connecting nuts f44 are respectively in threaded connection with the threaded ends of the threaded rods f43, and the two connecting nuts f44 are respectively arranged close to the two ends of the rotating plate f 41; the disk f45 is built into the vacuum suction pipe f3, and the disk 45 is disposed radially on the center shaft f 42.

When the screw conveyor f1 conveys dust, the situation that the screw conveyor f1 is blocked cannot occur, and the pressure reducing dust collection pipe f3 is arranged, so that the air pressure at the discharge end of the screw conveyor f1 can be reduced, dust impurities can be conveniently separated from air, and dust can conveniently enter the snake skin bag through the dust outlet assembly f 2; the snake skin bag can be hung on the first connector f2212 by arranging the first anti-skid rod f2211 and the first connector f2212, and then the snake skin bag is fixed by the fixing belt f233 and the hook part f234 without manually holding the snake skin bag all the time; the second anti-skid rod f2221 and the second connector f2222 are arranged, and the second anti-skid rod f2221 is arranged on one side, away from the first anti-skid rod f2211, of the outer wall of the third slag outlet pipe f213, so that the snake skin bag can be further hooked, and the snake skin bag is prevented from slipping; by arranging the supporting column f232, when the snakeskin bag is fixed on the second slag outlet pipe f212 by the fixing belt f233, the snakeskin bag can be opened and limited to slide downwards; by arranging the ring body f214, the diameter of the ring body f214 is continuously increased along the direction close to the second slag outlet pipe f212, so that the bag opening of the snake-skin bag can be opened, and dust can conveniently enter the snake-skin bag; through setting up third slag pipe f213, and third slag pipe f213 is along keeping away from the continuous increase of second slag pipe f 212's direction diameter, can make things convenient for the dust to pass through third slag pipe f213, can not block up the discharge end at third slag pipe f 213.

The primary dust removal device g comprises an air separator g1, at least one first dust suction fan g2 and an ash-gas separation component g3, wherein the air separator g1 is provided with a feeding hole, a discharging hole and a dust outlet; the air inlet end of the first dust suction fan g2 is communicated with the dust outlet of the air classifier g 1;

the ash-gas separation component g3 comprises a connecting cylinder g31, an ash-gas separation piece g32 and a plurality of communicating pipes g33, wherein the connecting cylinder g31 is hollow, the peripheral surface of the connecting cylinder g31 is inwards sunken to form an air inlet, and the air inlet of the connecting cylinder g31 is communicated with the air outlet end of the first dust suction fan g 2.

The ash-gas separating member g32 includes a plurality of first ash-gas separating cylinders g321, a plurality of second ash-gas separating cylinders g322, and a plurality of third ash-gas separating cylinders g 323; the first ash-gas separation cylinders g321, the second ash-gas separation cylinders g322 and the third ash-gas separation cylinders g323 are respectively arranged along the axial direction of the screw conveyor f1, one end of each first ash-gas separation cylinder g321 is communicated with the connecting cylinder g31, and the other end of each first ash-gas separation cylinder g323 is communicated with the feeding end of the screw conveyor f 1; one end of the second ash separating cylinder g322 is communicated with the connecting cylinder g31, and the other end is communicated with the feeding end of the screw conveyer f 1; one end of the third ash-gas separation cylinder g323 is communicated with the connecting cylinder g31, the other end is communicated with the second ash-gas separation cylinder g322, and the communication position is arranged close to the screw conveyer f 1; the communication positions of the first ash-gas separation barrel g321, the second ash-gas separation barrel g322, the third ash-gas separation barrel g323 and the connecting barrel g31 are sequentially arranged along the direction far away from the air inlet port of the connecting barrel g 31.

A plurality of communicating pipes g33 are respectively arranged opposite to the first ash-gas separating cylinder g321, the second ash-gas separating cylinder g322 and the third ash-gas separating cylinder g323, the communicating pipes g33 are arranged corresponding to the corresponding first ash-gas separating cylinder g321 one by one, the communicating pipes g33 are arranged corresponding to the corresponding second ash-gas separating cylinder g322 one by one, the communicating pipes g33 are arranged corresponding to the corresponding third ash-gas separating cylinder g323 one by one, the communicating pipes g33 are arranged opposite to the corresponding first ash-gas separating cylinder g321, the second ash-gas separating cylinder g322 and the third ash-gas separating cylinder g323, one end of communication pipe g33 passes through the inner wall of connecting cylinder g31, the other end of communication pipe g33 is disposed close to corresponding first ash-gas separation cylinder g321, second ash-gas separation cylinder g322, and third ash-gas separation cylinder g323, and the diameter of communication pipe g33 is smaller than the diameter of one end of first ash-gas separation cylinder g321, second ash-gas separation cylinder g322, and third ash-gas separation cylinder g323 close to connecting cylinder g 31.

Preferably, the communication positions of the first ash-gas separation barrel g321, the second ash-gas separation barrel g322, the third ash-gas separation barrel g323 and the connecting barrel g31 are sequentially arranged along the direction far away from the air inlet port of the connecting barrel g 31; the diameters of the first ash-gas separating cylinder g321, the second ash-gas separating cylinder g322 and the third ash-gas separating cylinder g323 are continuously reduced along the direction far away from the connecting cylinder g31, and the ends, close to the screw conveyor f1, of the first ash-gas separating cylinder g321, the second ash-gas separating cylinder g322 and the third ash-gas separating cylinder g323 are gradually inclined towards the screw conveyor f 1.

The grains passing through the vibrating screen d can be subjected to dust removal treatment again through the primary dust removal device g, so that dust in the grains is further reduced; dust and air enter a first dust suction fan g2 from a dust outlet of an air classifier g1 and enter a connecting cylinder g31 from the first dust suction fan g2, the dust and the air collide with the outer wall of a communicating pipe g33 at a certain speed to separate the dust from the air, the dust moves downwards under the action of gravity, the air moves upwards, a mixture of the dust and the air is separated by an ash-air separating piece g32 through an ash-air separating piece g32, and the mixture enters a spiral conveyor f1 from the ash-air separating piece g 32.

The secondary dust removing device h comprises a middle pipe h1, a plurality of first connecting pipes h2, at least one return pipe h3 and an air volume adjusting valve h4,

the first connecting pipes h2 and the communicating pipes g33 are arranged in a one-to-one correspondence manner, one end of each first connecting pipe h2 penetrates through the inner wall of the connecting cylinder g31, one end of each first connecting pipe h2 penetrating through the inner wall of the connecting cylinder g31 is connected to the corresponding communicating pipe g33, the joint of the first connecting pipe h2 and the communicating pipe g33 is arranged close to the other end of the communicating pipe g33, and the other end of each first connecting pipe h2 is communicated with the transfer pipe;

the return pipes h3 are arranged in one-to-one correspondence with the first dust suction fans g2, one end of each return pipe h3 is communicated with the middle pipe h1, and the other end of each return pipe h3 is communicated with the air inlet end of the corresponding first dust suction fan g 2;

the air volume adjusting valve h4 and the return pipe h3 are arranged in a one-to-one correspondence manner, the air volume adjusting valve h4 comprises a rotating block h41, a connecting shaft h42, a threaded shaft h43, a pair of stop nuts h44 and a disk body h45, the connecting shaft h42 can penetrate through the return pipe h3 in a rotatable manner along the radial direction, the rotating block h41 is arranged on the connecting shaft h42 and is arranged outside the return pipe h3, an arc-shaped hole is formed in the rotating block h41 along the circumferential direction of the connecting shaft h42 and axially penetrates through the rotating block h41 along the connecting shaft h42, and one end of the threaded shaft h43 penetrates through the arc-shaped hole of the rotating block h41 and is connected; two stop nuts h44 are respectively screwed on the threaded ends of the threaded shaft h43, and two stop nuts h44 are respectively arranged near the two ends of the rotating block h 41. Preferably, the number of the air volume adjusting valves h4 and the return pipes h3 is two; the disk h45 is built in the return pipe h3, and the disk h45 is radially provided on the connecting shaft h 42.

The three-stage dust removal device i comprises at least one first cyclone separator i1 and at least one second dust collection fan i2, the first cyclone separator i1 is arranged in one-to-one correspondence with the slag discharge device e, the first cyclone separator i1 comprises a first dust removal pipe i11, a second dust removal pipe i12, a third dust removal pipe i13, a fourth dust removal pipe i14, a fifth dust removal pipe i15 and a first straight pipe i16 which are vertically arranged, the first dust removal pipe i11, the second dust removal pipe i12, the third dust removal pipe i13, the fourth dust removal pipe i14 and the fifth dust removal pipe i15 are sequentially communicated, the first dust removal pipe i11 is arranged on the outer wall of the connecting cylinder g31, the outer peripheral surface of the first dust removal pipe i11 is provided with an air inlet, one end, far away from the second dust removal pipe i12, of the first dust removal pipe i11 is provided with an air outlet, and an end of the first dust collection fan i11 is communicated with an end of the second dust collection fan i 2; the first straight pipe i16 is coaxially connected to the inner wall of the air outlet of the first dust removal pipe i11, and one end of the first straight pipe i16 extends towards the second dust removal pipe i 12; the air inlet end of the second dust collection fan i2 is communicated with the middle pipe h1, and the air outlet end of the second dust collection fan i2 is communicated with the air inlet of the first dust removal pipe i 11.

Preferably, the first dust removal pipe i11 is square, and the second dust removal pipe i12 is cylindrical; the diameter of the third dust removing pipe i13 becomes smaller in the direction away from the second dust removing pipe i 12; the fourth dedusting pipe i14 is cylindrical, and the diameter of the fourth dedusting pipe i14 is larger than that of the small-diameter end of the third dedusting pipe i 13; the diameter of the fifth dust removal pipe i15 is continuously reduced along the direction far away from the fourth dust removal pipe i14, and a discharge hole is formed in one end, far away from the fourth dust removal pipe i14, of the fifth dust removal pipe i 15.

The dust in the middle pipe h1 is extracted through the first cyclone separator i1 and the second dust suction fan i2, the gas containing the dust is processed through the first cyclone separator i1, and the gas containing the dust entering the middle pipe h1 can be processed in a large amount; the air volume adjusting valve h4 is composed of simpler parts, has low manufacturing cost, can adjust the air flow volume of the corresponding pipeline through the rotating block h41, and is convenient to use.

The four-stage dust removal device j comprises at least one second cyclone separator j1, at least one first air inlet pipeline j2, at least one third dust suction fan j3 and an air volume control member j4, wherein one end of the first air inlet pipeline j2 is communicated with a middle pipe h 1.

The third dust collection fan j3 is arranged in one-to-one correspondence with the first air inlet pipeline j2, the third dust collection fan j3 is arranged in one-to-one correspondence with the second cyclone separator j1, and the air inlet end of the third dust collection fan j3 is communicated with the other end of the corresponding first air inlet pipeline j 2;

the second cyclone separator j1 comprises a sixth dust removal pipe j11, a seventh dust removal pipe j12, an eighth dust removal pipe j13, a second straight pipe j14 and a discharging component j15, the sixth dust removal pipe j11 is arranged on the outer wall of the first dust removal cylinder c41, the outer wall of the sixth dust removal pipe j11 is connected with the outer wall of the third dust collection fan j3, the sixth dust removal pipe j11, the seventh dust removal pipe j12 and the eighth dust removal pipe j13 are vertically arranged and sequentially communicated, an air inlet is formed in the peripheral surface of the sixth dust removal pipe j11, an air outlet is formed in one end, far away from the seventh dust removal pipe j12, of the sixth dust removal pipe j11, and an air inlet of the sixth dust removal pipe j11 is communicated with an air outlet end of the third dust collection fan j 3; the discharging assembly j15 comprises two slag discharging pipes j151, the two slag discharging pipes j151 are respectively located on two sides of the eighth dust removing pipe j13 and are symmetrically arranged, one ends of the two slag discharging pipes j151 are communicated with a slag discharging end of the eighth dust removing pipe j13, the other end of the slag discharging pipe j151 is communicated with the fourth dust removing cylinder c44, the communication position of the slag discharging pipe j151 is arranged at one end, close to the third dust removing cylinder c43, of the fourth dust removing cylinder c44, the other end of the other slag discharging pipe j151 is communicated with the second slag discharging pipe f212, the communication position of the slag discharging pipe j151 and the second slag discharging pipe f212 is arranged close to the check ring e14, and the diameter of the slag discharging pipe j151 in the direction far away from the eighth dust removing pipe j13 is continuously reduced.

Preferably, the sixth dust removal pipe j11 is square, and the seventh dust removal pipe j12 is cylindrical; the diameter of the eighth dedusting pipe j13 is continuously reduced along the direction far away from the seventh dedusting pipe j12, and a discharge hole is formed in one end, far away from the seventh dedusting pipe j12, of the eighth dedusting pipe j 13.

The air volume control part j4 comprises a support shaft j41, a rotating sheet j42, a stud j43, two nuts j44 and a circular plate j45, wherein the support shaft j41 can rotatably penetrate through a first air inlet pipeline j2, the rotating sheet j42 is arranged on the support shaft j41 and is arranged outside the first air inlet pipeline j2, an arc-shaped hole is formed in the rotating sheet j42 along the circumferential direction of the support shaft j41 and penetrates through the rotating sheet j42 along the axial direction of the support shaft j41, and one end of the stud j43 penetrates through the arc-shaped hole and is connected to the outer wall of the first air inlet pipeline j 2; the two nuts j44 are respectively in threaded connection with the stud j43, and the two nuts j44 are respectively arranged close to the two ends of the rotating piece j 42; a circular plate j45 is built in the first air intake duct j2, and the circular plate j45 is radially disposed on the support shaft j 41.

The dust separated by the second cyclone separator j1 is relatively less, and by arranging the discharge assembly j15, the dust discharged by the eighth dust removal pipe j13 is respectively conveyed to the fourth dust removal cylinder c44 and the second slag discharge pipe f212 through the two slag discharge pipes j151, so that the number of slag outlets of the grain cleaning machine is reduced, and the number of snake skin bags required to be sleeved is reduced.

The conveying device k is obliquely arranged on the vehicle body a, and the feeding end of the conveying device k is arranged right below the discharge hole of the air classifier g 1. Preferably, the conveying device k is a belt conveyor.

The discharging and dedusting device l comprises a dedusting cover l1, at least one cyclone dust collector l2, a first dedusting fan l3, a second dedusting fan l4, a three-way air inlet pipeline l5 and two air volume adjusting pieces l6, the dedusting cover l1 comprises a cover body l11, an intermediate hopper l12 and a discharging hopper l13, the cover body l11 is arranged on the vehicle body a and is covered above the conveying device k, one end, far away from the conveying device k, of the cover body l11 is provided with a dust suction hole, the dust suction hole penetrates through the cover body l11, and the dust suction hole of the cover body l11 is positioned right above the discharging end of the conveying device k; the intermediate hopper l12 is arranged on the cover body l11, and the discharge end of the intermediate hopper l12 is arranged right above the feed end of the conveying device k; the discharge hopper l13 is arranged on the cover body l11, the discharge hopper l13 is arranged below the discharge end of the conveying device k, and the feed end of the discharge hopper l13 is opposite to the discharge end of the conveying device k; the first dust-removing fan l3 has a first air inlet, a second air inlet and an air outlet, and the first air inlet of the first dust-removing fan l3 is communicated with the dust suction hole of the cover body l 11. Preferably, the exit hopper l13 decreases in size in a direction away from the conveyor k.

The cyclone dust collector l2 comprises a first settling cylinder l21, a second settling cylinder l22, a third settling cylinder l23, a fourth settling cylinder l24, a fifth settling cylinder l25 and an exhaust pipeline l26 which are vertically arranged, wherein the first settling cylinder l21, the second settling cylinder l22, the third settling cylinder l23, the fourth settling cylinder l24 and the fifth settling cylinder l25 are sequentially arranged and communicated downwards along the vertical direction, an air inlet is formed in the peripheral surface of the first settling cylinder l21, an air outlet is formed in one end, away from the second settling cylinder l22, of the first settling cylinder l21, and an air inlet end of the first settling cylinder l21 is communicated with an air outlet of a first dust removal fan l 3; the second settling cylinder l22 is arranged on the vehicle body a; the exhaust pipeline l26 is coaxially connected to the inner wall of the air outlet of the first settling cylinder l21, and one end of the exhaust pipeline l26 extends towards the second settling cylinder l 22; the air outlet of the first dust removal fan l3 is communicated with the air inlet of the first settling cylinder l 21.

Preferably, the first settling cylinder l21 is square, and the second settling cylinder l22 is cylindrical; the diameter of the third settling cylinder l23 becomes smaller in the direction away from the second settling cylinder l 22; the fourth settling cylinder l24 is cylindrical, and the diameter of the fourth settling cylinder l24 is larger than that of the small-diameter end of the third settling cylinder l 23; the diameter of the fifth settling cylinder l25 is continuously reduced along the direction far away from the fourth settling cylinder l24, and one end of the fifth settling cylinder l25 far away from the fourth settling cylinder l24 is provided with a discharge hole.

Preferably, the discharging dust removal device l comprises a dust hood l1, two cyclone dust collectors l2, a first dust removal fan l3, a second dust removal fan l4, a three-way air inlet pipeline l5, two air volume adjusting pieces l6 and a communicating air pipe l7, wherein the two cyclone dust collectors l2 are respectively arranged on two sides of the vehicle body a; two ends of the communicating air pipe l7 are respectively communicated with air inlets of first settling cylinders l21 of two cyclone dust collectors l 2; the first dust removal fan l3 is disposed on the communicating air duct l7, and an air outlet of the first dust removal fan l3 is communicated with the communicating air duct l 7.

The first dust removal fan l3 is provided with a first air inlet, a second air inlet and an air outlet, and the air outlet of the second dust removal fan l4 is communicated with a communicating air pipe l 7;

the three-way air inlet pipeline l5 comprises a first pipeline l51 and a second pipeline l52, one end of the first pipeline l51 is communicated with a second air inlet of the first dust removal fan l3, the other end of the first pipeline l51 is communicated with the dust collection device f, and the communication position of the first pipeline l51 and the dust collection device f is close to the discharge end of the dust collection device f; one end of the second pipeline l52 is communicated with the first pipeline l51, and the other end is communicated with a first air inlet of a second dust removal fan l 4;

an air volume adjusting part l6 is arranged on a first pipeline l51 and is close to a first dust removal fan l3, another air volume adjusting part l6 is arranged on a second pipeline l52, each air volume adjusting part l6 comprises a rotary disc l61, a rotary shaft l62, a stud l63, two fixing nuts l64 and a round block l65, the rotary shaft l62 can radially and rotatably penetrate through the corresponding pipeline, the rotary disc l61 is arranged on the rotary shaft l62 and is arranged outside the corresponding pipeline, an arc-shaped hole is circumferentially formed in the rotary disc l61 along the rotary shaft l62, the arc-shaped hole axially penetrates through the rotary disc l61 along the rotary shaft l62, and one end of the stud l63 penetrates through the arc-shaped hole of the rotary disc l61 and is connected to the outer wall of the corresponding pipeline; two fixing nuts l64 are respectively in threaded connection with the stud l63, and the two fixing nuts l64 are respectively arranged close to the two ends of the rotary table l 61; the round block l65 is embedded in the corresponding pipe, and the round block l65 is arranged on the rotating shaft l62 along the radial direction. Preferably, the first pipe l51 is Y-shaped after being connected with the second pipe l 52.

The first dust removal fan l3 and the second dust removal fan l4 are communicated with the pressure reduction dust collection pipe f3 through a first pipeline l51 and a second pipeline l52, and under the action of the first dust removal fan l3 and the second dust removal fan l4, gas mixed in the spiral conveyor f1 enters the cyclone dust collector l2 through the pressure reduction dust collection pipe f3, the first dust removal fan l3 and the second dust removal fan l4, is subjected to dust removal treatment and then is discharged; because the amount of gas contained in the dust in the screw conveyer f1 is not constant, the air flow rate of the corresponding pipeline is controlled by the air flow rate adjusting piece l6 and the air flow rate adjusting assembly f4, so that the pressure reducing dust suction pipe f3 sucks a proper amount of air to enter the cyclone dust collector l 2; the first pipeline l51 is Y-shaped after being connected with the second pipeline l52, and has small influence on the suction force of the first dust removal fan l3 and the second dust removal fan l 4.

The utility model discloses a concrete work flow: grain is sent into feeder hopper b, and when grain fell into feeder hopper b, partly dust got into cyclone separation piece c4 under the effect of suction hood c1, dust absorption pipe, first fan c3 in, the mixture of dust and air got into first dust removal section of thick bamboo c41 from the inlet port of first dust removal section of thick bamboo c41 to blow and beat on first fixed pipe c46 outer wall, the dust dropped down along second dust removal section of thick bamboo c42, and sent into the collection bag through third dust removal section of thick bamboo c43, fourth dust removal section of thick bamboo c44, fifth dust removal section of thick bamboo c 45.

Grain gets into in the casing d1 of shale shaker d from feeder hopper b to carry out grain and dust impurity's separation under the effect of shale shaker d, dust impurity gets into slag discharging device e at the slag notch from casing d1, when the straw card was in casing d1, directly lifts rubber pad d2, clears up in the casing d1, prevents that the dust removal of follow-up grain is influenced to the straw.

Grain enters an air separator g1 of a primary dust removal device g from a discharge port of a shell d1, the air separator g1 separates the grain from dust according to the difference of critical speed rates of the grain and the dust, the grain is discharged from a discharge port of the air separator g1, impurities such as dust enter a first dust suction fan g2 from a dust outlet of the air separator g1, enters the connecting cylinder g31 under the action of the first dust suction fan g2 and blows and hits the outer wall of the communicating pipe g33, after dust enters the connecting cylinder g31, most of dust falls downwards along the pipe wall of the first dust-gas separation cylinder g321, a part of dust falls downwards along the pipe wall of the second dust-gas separation cylinder g322, a small part of dust falls into the slag discharging end of the second dust-gas separation cylinder g322 along the pipe wall of the third dust-gas separation cylinder g323, and the dust falls into the dust collecting device f from the first dust-gas separation cylinder g321, the second dust-gas separation cylinder g322 and the third dust-gas separation cylinder g 323.

The dust enters a spiral conveyor f1 from a first dust-gas separating cylinder g321, a second dust-gas separating cylinder g322 and a third dust-gas separating cylinder g323, is conveyed from the feeding end of the spiral conveyor f1 to the discharging end of the spiral conveyor f1 under the action of the spiral conveyor f1 and is discharged from a dust discharging assembly f2, a snake skin bag is sleeved on a third slag discharging pipe f213, the bag mouth of the snake skin bag is hung on a first connector f2212 and a second connector f2222, a fixing belt f233 rotates around the circumference of the snake skin bag, a hook part f234 is hooked on a first anti-slip rod f2211, the fixing of the snake skin bag is completed, the dust enters the snake skin bag through a first slag discharging pipe f211, a second slag discharging pipe f212 and a third slag discharging pipe f213, when the snake skin bag is fully filled with the dust, the hook part f234 is released, the fixing belt f233 is released, and the snake skin bag is taken down. The pressure reduction dust collection pipe f3 enables the screw conveyer f1 to be connected with the first slag discharge pipe f211 to reduce the pressure of the air pressure, so that the settled dust is prevented from being lifted again; the air volume adjusting assembly f4 can adjust the size of the air flow passing through the pressure reduction dust collection pipe f3, so that the air volume adjusting assembly f4 is convenient to adjust and control at any time, and is made of simple parts, so that the manufacturing cost is low.

In the connecting cylinder g31, gas is discharged from the connecting pipe g33, but dust is mixed in the gas drifted from the connecting pipe g33, the gas passing through the connecting pipe g33 is extracted through the first connecting pipe h2, the gas is respectively pumped into the intermediate pipe h1 under the action of the first connecting pipe h2, the gas containing the dust enters the return pipe h3 from the intermediate pipe h1, enters the air inlet end of the first dust suction fan g2 from the return pipe h3, and enters the primary dust removal device g for secondary filtration; the air volume adjusting valve h4 is adjusted to control the air volume passing through the return pipe h 3.

Excessive air passing through the return pipe h3 affects the amount of dust extracted from the air separator g1 by the first dust suction fan g2, and a three-stage dust removing device i is provided, and the second dust suction fan i2 pumps the air mixture in the intermediate pipe h1 into the first cyclone separator i 1.

The mixture of the dust and the air enters the first dust removing pipe i11 from the second dust suction fan i2 and is blown and beaten on the outer wall of the first straight pipe i16, the dust falls down along the second dust removing pipe i12 and is sent into a collecting bag through the third dust removing pipe i13, the fourth dust removing pipe i14 and the fifth dust removing pipe i15, and the air escapes from the first straight pipe i 16.

Setting a four-stage dust removal device j, enabling a mixture of dust and air to enter a second cyclone separator j1 from an intermediate pipe h1 through a first air inlet pipe j2 and a third dust suction fan j3, enabling the mixture of the dust and the air to enter a sixth dust removal pipe j11 from an air inlet of the sixth dust removal pipe j11 and blow the mixture on the outer wall of a second straight pipe j14, enabling the dust to fall downwards along the seventh dust removal pipe j12 and an eighth dust removal pipe j13 and to respectively enter a fourth dust removal cylinder c44 and a slag removal device e through a first slag removal pipe f211 and a second slag removal pipe f212, and enabling the gas to escape outwards from the second straight pipe j 14; when dust appears at the air outlet of the first cyclone separator i1, the air volume control member j4 is controlled to increase the air volume flowing through the first air inlet pipe j2, a part of air in the middle pipe h1 is treated by the second cyclone separator j1, the air flowing to the first cyclone separator i1 can be reduced, the treatment amount of the first cyclone separator i1 is reduced, and the air discharged from the first cyclone separator i1 does not contain dust.

Grain enters a conveying device k from a discharge port of an air separator g1 through an intermediate hopper l12, the conveying device k is a feed end of a belt conveyor, under the action of the belt conveyor, the grain is conveyed from an input end to an output end of the belt conveyor and falls into a discharge hopper l13 from the output end of the belt conveyor, when the grain falls onto the belt conveyor from the intermediate hopper, the grain falls onto the belt conveyor due to inconsistent weight of air and grain, dust and the grain are separated, when the grain falls into the discharge hopper l13 from the belt conveyor, the dust and the grain are separated, due to the existence of a cover body l11, the dust enters a first dust removal fan l3 from a dust suction hole of a cover body l11 under the action of a dust suction hole on the cover body l11, enters a communicating air pipe l7 from the first fan c3, enters two cyclone dust collectors l2 from the communicating air pipe l7, and a mixture of the dust and the air enters a first settling cylinder l21 from an air inlet hole of the first settling cylinder l21, blowing and striking the dust on the outer wall of an exhaust pipeline l26, enabling the dust to fall down along a second settling cylinder l22 and to be sent into a collecting bag through a third settling cylinder l23, a fourth settling cylinder l24 and a fifth settling cylinder l 25;

the first dust removal fan l3 and the second dust removal fan l4 are communicated with the pressure reduction dust collection pipe f3 at the same time, under the action of the first dust removal fan l3 and the second dust removal fan l4, gas mixed in the spiral conveyor f1 enters the cyclone dust collector l2 through the pressure reduction dust collection pipe f3, the first dust removal fan l3 and the second dust removal fan l4, the pressure reduction dust collection pipe f3, the first dust removal fan l3 and the second dust removal fan l4 are communicated through a three-way air inlet pipeline l5, the air flow rate of the corresponding pipeline is controlled through the air flow adjusting piece l6 and the air flow adjusting component f4, the first pipeline l51 is Y-shaped after being connected with the second pipeline 152, and the influence on the first dust removal fan l3 and the second dust removal fan l4 is small.

The dust and impurities of the vibrating screen d are discharged into a feeding pipe e11 from the slag discharging end of a shell d1, the dust and the impurities enter a snake skin bag from the feeding pipe e11, a discharging pipe e12 and a hollow pipe e13, the dust is discharged into a discharging pipe e12 from a fifth dust removing pipe i15 through a pipeline by a third-stage dust removing device i, the dust enters the snake skin bag from the discharging pipe e12 and the hollow pipe e13 by a fourth-stage dust removing device j, a part of the dust is discharged into a discharging pipe e12 through a slag discharging pipe j151, and the dust enters the snake skin bag from the discharging pipe e12 and the hollow pipe e13 by the fourth; sleeving the snakeskin bag on the discharge pipe e12, hanging the bag mouth of the snakeskin bag on the first anti-slip head e212 and the second anti-slip head e222, rotating the elastic tying belt e33 around the snakeskin bag in the circumferential direction, hanging the hook piece e34 on the first connecting rod e211, completing the fixation of the snakeskin bag, enabling dust to enter the snakeskin bag through the feed pipe e11, the discharge pipe e12 and the hollow pipe e13, releasing the hook part f234 when the snakeskin bag is full of dust, loosening the elastic tying belt e33, and taking down the snakeskin bag.

Example two:

the same points are not illustrated, and the second embodiment is different from the first embodiment in that the feeding dust removing device c comprises a dust hood c1, three first dust suction pipes c2, two first fans c3, two cyclone separating pieces c4 and a connecting air pipe c 5.

The two first cyclone separators i1 are respectively arranged on the vehicle body a and distributed on two sides of the feed hopper b, the first cyclone separator i1 comprises a first dust removing cylinder c41, a second dust removing cylinder c42, a third dust removing cylinder c43, a fourth dust removing cylinder c44, a fifth dust removing cylinder c45 and a first fixed pipe c46 which are vertically arranged, the first dust removing cylinder c41, the second dust removing cylinder c42, the third dust removing cylinder c43, the fourth dust removing cylinder c44 and the fifth dust removing cylinder c45 are sequentially communicated, the first dust removing cylinder c41 is arranged on the vehicle body a, an air inlet is formed in the peripheral surface of the first dust removing cylinder c41, and an air outlet is formed in one end, far away from the second dust removing cylinder c42, of the first dust removing cylinder c 41; the first fixing pipe c46 is coaxially connected to the inner wall of the air outlet hole of the first dust removing cylinder c41, and one end of the first fixing pipe c46 extends toward the second dust removing cylinder c 42.

Preferably, an end surface of one end of the first fixing tube c46 is disposed adjacent to the second dust removing cylinder c42, and the diameter of the second dust removing cylinder c42 is larger than that of the first fixing tube c 46.

The dust hood c1 is arranged on the feed hopper b; one ends of the three first dust suction pipes c2 respectively penetrate through the inner wall of the dust hood c1, and the penetrating positions are two sides and the top of the first dust suction pipe c2 respectively; the other ends of the two first dust absorption pipes c2 are communicated with the air inlet end of a first fan c3, and the other end of the other first dust absorption pipe c2 is communicated with the air inlet end of the other first fan c 3; the first fans c3 and the first cyclone separators i1 are arranged in a one-to-one correspondence manner, the first fans c3 are arranged on the first dust removing cylinders c41 of the corresponding first cyclone separators i1, the connecting air pipes c5 are communicated with the air outlet ends of the two first fans c3, and the connecting air pipes c5 are communicated with the air inlets of the first dust removing cylinders c41 of the two first cyclone separators i 1. The above description of the present invention does not limit the scope of the present invention. Any other corresponding changes and modifications made according to the technical idea of the present invention should be included in the scope of the claims of the present invention.

Claims (6)

1. A grain cleaning machine with a slag discharging device is characterized by comprising a feed hopper, a feeding dust removing device, a vibrating screen, at least one slag discharging device, a primary dust removing device, a secondary dust removing device, a tertiary dust removing device and a quaternary dust removing device; the feeding dust removal device comprises a cyclone separating piece and a dust hood, the dust hood is arranged opposite to the feeding hopper, and the air outlet end of the dust hood is communicated with the air inlet end of the cyclone separating piece; the feeding end of the vibrating screen is communicated with the discharging end of the feeding hopper; the slag inlet end of the slag discharging device is communicated with the slag discharging end of the vibrating screen; the primary dust removal device comprises an air separator, at least one first dust suction fan and an ash-gas separation component, the air separator is provided with a feeding hole, a discharging hole and a dust outlet, and the feeding hole of the air separator is communicated with the discharging end of the vibrating screen; the air inlet end of the first dust collection fan is communicated with the dust outlet of the air separator; the ash-gas separation component comprises a gas inlet, a gas outlet and a slag discharge port, and the gas inlet of the ash-gas separation component is communicated with the gas outlet end of the first dust collection fan; the secondary dust removal device comprises a middle pipe, and the middle pipe is communicated with an air outlet of the ash-gas separation component; the three-stage dust removal device comprises at least one first cyclone separator and at least one second dust collection fan, and the slag outlet end of the first cyclone separator is communicated with the slag inlet end of the slag outlet device; the air inlet end of the second dust collection fan is communicated with the middle pipe, and the air outlet end of the second dust collection fan is communicated with the air inlet end of the first cyclone separator; the four-stage dust removal device comprises at least one second cyclone separator, at least one third dust collection fan and a discharge assembly, wherein the air inlet end of the third dust collection fan is communicated with the middle pipe, and the air outlet end of the third dust collection fan is communicated with the air inlet end of the second cyclone separator; the ejection of compact subassembly includes two row's sediment pipes, two arrange the one end of sediment pipe with the slag outlet end homogeneous phase intercommunication of second cyclone, one arrange the other end of sediment pipe with the slag outlet end of first cyclone communicates mutually, another arrange the other end of sediment pipe with slag discharging device's the slag inlet is linked together.

2. The grain cleaning machine with the slag discharging device according to claim 1, wherein the two slag discharging pipes are respectively positioned at two sides of the slag discharging end of the second cyclone separator and are symmetrically arranged.

3. The grain cleaning machine with the slag discharging device according to claim 1, wherein the diameter of the slag discharging pipe is gradually reduced along a direction away from the second cyclone separator.

4. The grain cleaning machine with the slag discharging device according to claim 1, wherein the secondary dust removing device further comprises a return pipe, one end of the return pipe is communicated with the middle pipe, and the other end of the return pipe is communicated with the air inlet end of the first dust suction fan.

5. The grain cleaning machine with the slag discharging device according to claim 1, wherein the feeding and dust removing device further comprises at least one first fan, the cyclone separating piece comprises a first dust removing cylinder, a second dust removing cylinder, a third dust removing cylinder, a fourth dust removing cylinder, a fifth dust removing cylinder and a first fixing pipe which are vertically arranged, the first dust removing cylinder, the second dust removing cylinder, the third dust removing cylinder, the fourth dust removing cylinder and the fifth dust removing cylinder are sequentially communicated, an air inlet is formed in the peripheral surface of the first dust removing cylinder, an air outlet is formed in one end, away from the second dust removing cylinder, of the first dust removing cylinder, and the air inlet of the first dust removing cylinder is communicated with the air outlet end of the first fan; the first fixed pipe is coaxially connected to the inner wall of the air outlet of the first dust removing cylinder, and one end of the first fixed pipe extends towards the second dust removing cylinder.

6. The grain cleaning machine with the slag discharging device according to claim 5, wherein the other end of the slag discharging pipe is communicated with the fourth dust removing cylinder.

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