CN217330470U - Grain drying-machine - Google Patents

Abstract

The utility model discloses a grain drying-machine has improved among the prior art problem that needs to reduce the moisture before the grain storage. The utility model discloses a contain the base, dial the granary, dry the storehouse, store up the granary, circulation lifting machine, heat source device and air-blast device, wherein the base connects gradually dials the granary, dry storehouse and store up the granary, dials the bottom feed inlet that the bottom of granary passes through the pipe connection circulation lifting machine, and the top feed inlet of circulation lifting machine passes through the feed inlet of pipe connection storage granary, and the pipe connection heat source device is passed through to one side in the storehouse of drying, and the air-blast device is with the heat source from heat source device internal output and through drying inside the storehouse. The horn-shaped drying groove air inlet side becomes smaller gradually to the cross section size of the air outlet side in the technology, the horn-shaped drying groove can adapt to the air inlet process, because of the factor of the length of the horn-shaped drying groove, small differences exist in air pressure at two ends of the horn-shaped drying groove, the phenomenon that the hot air path is concentrated at the air inlet end with slightly large air pressure, and the heat transfer efficiency of a drying bin is inconsistent is avoided.

Description

Grain drying-machine

Technical Field

The utility model relates to a grain drying machinery especially relates to a grain drying-machine.

Background

As is known, China is the first major food country in the world, and in the main food production area, due to the fact that the yield is high and the airing field is insufficient, the water content of the food purchased in a grain depot often exceeds safe water content, when the temperature and humidity in the environment where the food is located are adjusted and taught to meet the growth and reproduction of microorganisms, the food can be mildewed, and particularly, the food can catch up to cloudy days or rainy days during the purchase period of the food; in addition, even if the moisture of the grain is not higher than safe moisture during warehousing, the grain needs to be aired regularly due to natural moisture regain so as to ensure that the grain is not mildewed.

After grain is harvested, the removal of the excessive moisture of the grain is an essential step for storing or processing the grain, the traditional method for removing the excessive moisture of the grain is usually to dry the grain by using natural factors such as the sun with the help of weather, however, if the grain is easy to mildew and germinate in the continuous bad weather, the grain is wasted, and the phenomenon is particularly common in the humid and rainy places in the south. In order to solve the influence of weather factors and the like on grain drying, people invent a drying technology at present, and the moisture of the grain is filtered by utilizing the manufactured heat so as to achieve the purpose of removing the redundant moisture of the grain.

However, the grain can not contact and collide with the mechanical device in the drying process, so that the broken grain particles are easily increased in the drying process, and the low damage rate of the dried grain needs to be ensured.

SUMMERY OF THE UTILITY MODEL

The utility model provides a rational in infrastructure, high-efficient convenient grain drying-machine to the problem that needs reduce the moisture before the grain storage among the prior art.

The technical solution of the utility model is that, a grain drying-machine with following structure is provided: the drying device comprises a base, a grain poking bin, a drying bin, a grain storage bin, a circulating elevator, a heat source device and an air blowing device, wherein the base is sequentially connected with the grain poking bin, the drying bin and the grain storage bin, the bottom of the grain poking bin is connected with a bottom feeding hole of the circulating elevator through a pipeline, a top feeding hole of the circulating elevator is connected with a feeding hole of the grain storage bin through a pipeline, one side of the drying bin is connected with the heat source device through a pipeline, and the air blowing device outputs a heat source from the heat source device and passes through the inside of the drying bin.

Preferably, the blower device comprises a heat source device, a hot air inlet pipe, a moisture outlet pipe and a negative pressure fan, wherein one side of the drying bin is connected with the air outlet of the heat source replacement part through the hot air inlet pipe, and the other side of the drying bin is connected with the negative pressure fan through the moisture outlet pipe and the moisture outlet pipe.

Preferably, the blower device comprises a heat source device, a hot air inlet pipe, a moisture air outlet pipe and a positive pressure fan, wherein one side of the drying bin is connected with the air outlet of the heat source replacement part through the hot air inlet pipe, the other side of the drying bin is connected with the atmosphere through the moisture air outlet and the moisture air outlet pipe, and the positive pressure fan is connected with the air inlet of the heat source replacement part through a pipeline.

Preferably, the grain poking bin comprises a shell, a grain poking wheel, a grain limiting groove, a chain wheel, a chain, a reversing chain wheel, a discharging funnel, a discharging pipe, a motor and a speed reducer, wherein the shell is internally provided with a plurality of alternately arranged grain poking wheels and grain limiting grooves; connecting portion between the limit grain groove are equipped with down the grain mouth, and the first half of lower grain mouth has inlayed and has dialled the grain pinion rack, and the below of lower grain mouth is equipped with ejection of compact funnel, and ejection of compact funnel passes through the feed inlet that the discharging pipe connects circulation lifting machine, and the casing is equipped with the switching-over sprocket outward, dials the grain wheel and is located the tip outside the casing and be equipped with the sprocket, and motor and speed reducer are established on the base, and the motor drives the speed reducer, and the output of speed reducer is dialled the sprocket of grain wheel one end through chain and switching-over sprocket drive.

Preferably, the drying chamber comprises an air inlet chamber, a drying chamber and an air outlet chamber, wherein one side of the air inlet chamber is connected with an air outlet of the heat source replacement part through a hot air inlet pipe, the air inlet chamber is sequentially connected with the drying chamber and the air outlet chamber, the other side of the air outlet chamber is connected with a negative pressure fan through a moisture air outlet pipe, and a plurality of horn-shaped drying grooves are embedded in the drying chamber and symmetrically distributed in a staggered manner along an air path in the drying chamber.

Preferably, the drying chamber comprises an air inlet chamber, a drying chamber and an air outlet chamber, wherein one side of the air inlet chamber is connected with an air outlet of the heat source heat exchange part through a hot air inlet pipe, the air inlet chamber is sequentially connected with the drying chamber and the air outlet chamber, the other side of the air outlet chamber is connected with the atmosphere through a moisture air outlet pipe, the positive pressure fan is connected with an air inlet of the heat source heat exchange part through a pipeline, and a plurality of horn-shaped drying grooves are embedded in the drying chamber and symmetrically and alternately distributed along an air path in the drying chamber.

Preferably, the horn-shaped drying slot comprises an upper sliding grain plate, a lower grain baffle plate, a fixing plate and fixing lugs, wherein the middle part of the upper sliding grain plate is folded into an inverted V shape, two side edges of the upper sliding grain plate are respectively connected with the lower grain baffle plate with inner ridges, one port of the upper sliding grain plate extends outwards to be provided with the fixing lug, the other port extends inwards to be provided with the fixing plate, and the fixing lug and the fixing plate are both provided with fixing holes.

Preferably, the bottom of air inlet chamber and air-out room is equipped with the palirrhea swash plate, and the bottom of drying chamber and air inlet chamber, air-out room junction all is equipped with the palirrhea hole that matches the palirrhea swash plate.

Preferably, the circulating elevator is a bucket elevator, and comprises a shell, a driving lifting wheel, a reversing wheel, a traction belt, a hopper, a lifting motor and a speed reducer, wherein the outer sides of the upper end and the lower end of the shell are respectively provided with a discharge port and a feed port, the inner sides of the upper end and the lower end of the shell are respectively provided with a lifting reversing wheel and a lifting driving wheel, the belt is sleeved between the lifting reversing wheel and the lifting driving wheel, the outer annular surface of the belt is provided with a plurality of hoppers, the lifting driving wheel is contacted with the inner side surface of the belt through a hollowed-out outer annular surface, the hollowed-out outer annular surface is formed by surrounding after a plurality of driving contact rods are distributed in an interval and uniform annular mode, the shaft of the lifting driving wheel is connected with the output end of the speed reducer through belt transmission, and the output end of the motor is connected with the input end of the speed reducer.

Preferably, the heat source device is a coal-fired furnace, a natural gas furnace, a liquefied gas furnace, a biomass particle furnace, a biomass oil furnace or an electric furnace, and air enters the drying bin after passing through a heat exchanger in the heat source device.

Compared with the prior art, the utility model discloses grain drying-machine has following advantage: inside being equipped with a plurality of horniness drying groove in stoving storehouse plays the effect of building the gas circuit inside grain, and the pivoted is dialled grain wheel and is stirred grain ration from the space department landing between the limit grain groove, realizes grain from the top down ration landing, relies on the dead weight to reach the circulation flow. The horn-shaped drying grooves distributed in a staggered manner can enable grains to roundly fall back and forth between the horn-shaped drying grooves, and the falling process and flowing hot air are in reverse contact, so that heat exchange is fully realized.

The lifting driving wheel of the circulating lifting machine is tightly sleeved by the driving contact rods which are uniformly distributed in an annular mode and the flexible traction belt, so that grains clamped between the driving contact rods and the flexible traction belt can be reduced, the damage rate caused by extrusion in the grain drying process is reduced, and the purposes of lifting the grains, circularly drying the grains and reducing the damage rate of the grains are guaranteed to the maximum extent.

Horny drying groove is through head and tail staggered arrangement, and the head end admit air the lower of side hide the grain board longer that extends, and the lower of tail end hides the short that the grain board extends, and horny drying groove admit air the side and diminish to the cross section size of the side of giving vent to anger gradually, can adapt to the in-process of admitting air because the factor of horny drying groove length, and the atmospheric pressure that causes its both ends has small difference, avoids appearing the hot-air gas circuit and concentrates on the slightly big inlet end of atmospheric pressure, causes the inconsistent phenomenon of stoving storehouse heat transfer efficiency.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic side view of the drying chamber of the present invention;

fig. 3 is a second schematic side view of the drying chamber of the present invention;

fig. 4 is a third schematic view of a side view structure of the middle drying bin of the present invention;

fig. 5 is a schematic sectional view of the reflux unit according to the present invention;

FIG. 6 is a schematic view of the expanded structure of the drying tub with a middle angle shape of the present invention;

FIG. 7 is one of the schematic end structures of the drying tank with a middle angle shape of the present invention;

FIG. 8 is a second schematic view of the end structure of the corner-like drying tank of the present invention;

fig. 9 is a schematic view of a partially enlarged structure of the middle drying bin of the present invention;

FIG. 10 is a schematic view of the matching structure of the grain poking wheel and the grain limiting groove of the utility model;

fig. 11 is a schematic structural view of the lifting driving wheel of the present invention;

fig. 12 is a schematic sectional structure diagram of the lifting driving wheel of the present invention.

In the description of the attached drawings, the reference numeral 1 is a grain storage bin, 2 is a drying bin, 3 is a grain pushing bin, 4 is a base, 5 is a circulating elevator, and 6 is a ladder stand.

1-1 is a grain storage bin shell, and 1-2 is a grain observation window;

2-1 is a drying bin shell, 2-2 is a hot air inlet, 2-3 is a moisture air outlet, 2-4 is a hot air inlet pipe, 2-5 is a horn-shaped drying groove, 2-6 is a heat source device, 2-7 is a moisture air outlet pipe, 2-8 is an air inlet chamber, 2-9 is an air outlet chamber, 2-10 is a reverse flow hole, 2-11 is a reverse flow inclined plate, 2-12 is a negative pressure fan, and 2-12' is a positive pressure fan;

2-5-1 is a lower grain covering plate, 2-5-2 is an upper grain sliding plate, 2-5-3 is a fixing lug, 2-5-4 is a mounting hole, 2-5-5 is a fixing plate, and 2-5-6 is a fixing hole;

3-1 is a grain poking bin shell, 3-2 is a chain wheel, 3-3 is a reversing chain wheel, 3-4 is a chain, 3-5 is an electric motor, 3-6 is a discharging hopper, 3-7 is a discharging pipe, 3-8 is a grain poking wheel, 3-9 is a grain poking toothed plate, and 3-10 is a grain limiting groove;

5-1 is a traction belt, 5-2 is a discharge plate, 5-3 is a speed reducer, 5-4 is a lifting motor, 5-5 is a driving contact rod, 5-6 is a lifting driving wheel, and 5-7 is a belt pulley.

Detailed Description

In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

The utility model discloses grain drying-machine is further explained below with the embodiment in combination with the attached drawing: as shown in the figure, the heat source drying device comprises a base 4, a grain poking bin, a drying bin, a grain storage bin, a circulating elevator, heat source devices 2-6 and an air blowing device, wherein the base 4 is sequentially connected with the grain poking bin, the drying bin and the grain storage bin, the bottom of the grain poking bin is connected with a bottom feeding hole of the circulating elevator through a pipeline, a top feeding hole of the circulating elevator is connected with a feeding hole of the grain storage bin through a pipeline, one side of the drying bin is connected with the heat source devices 2-6 through pipelines, and the air blowing device outputs heat sources from the heat source devices 2-6 and passes through the interior of the drying bin.

The grain storage bin is a container for storing a certain amount of grain in advance, and the transparent grain observation window 1-2 can be arranged on the shell 1-1 of the grain storage bin, so that an operator can conveniently see the height of the grain loaded in the grain storage bin, and the weight of the grain to be dried can be estimated; a plurality of horn-shaped drying grooves 2-5 are arranged in the drying bin at the lower part of the drying bin, and grains can move oppositely to hot air after passing through the horn-shaped drying grooves 2-5, so that the effect of temperature rise and dehydration is generated.

The air blowing device comprises a heat source device 2-6, a hot air inlet pipe 2-4, a moisture air outlet 2-3 and a negative pressure fan 2-12, wherein one side of the drying bin is connected with the air outlet of the heat exchanging part of the heat source device 2-6 through the hot air inlet pipe 2-4, and the other side of the drying bin is connected with the negative pressure fan 2-12 through the moisture air outlet 2-3 and the moisture air outlet pipe 2-7.

The air blowing device comprises a heat source device 2-6, a hot air inlet pipe 2-4, a moisture air outlet 2-3 and a positive pressure fan 2-12 ', wherein one side of the drying bin is connected with the air outlet of the heat exchanging part of the heat source device 2-6 through the hot air inlet pipe 2-4, the other side of the drying bin is connected with the atmosphere through the moisture air outlet 2-3 and the moisture air outlet pipe 2-7, and the positive pressure fan 2-12' is connected with the air inlet of the heat exchanging part of the heat source device 2-6 through a pipeline.

Hot air enters from one side of the drying bin and passes through the inside of the horny drying slots 2-5 in multiple layers and multiple rows, the horny drying slots 2-5 in multiple layers and multiple rows empty and space the accumulated grains, the hot air moves forwards in a zigzag manner from gaps of the grains, meanwhile, the heat is uniformly dispersed to the flowing grains, the temperature of the heat is gradually reduced, after the grains are heated, water vapor in the grains is evaporated, the grains are taken out of the drying bin by the flowing hot air, the flowing power of the hot air is a positive pressure fan 2-12 ', and the positive pressure fan 2-12' presses the heat into the drying bin from the hot air inlet pipe 2-4; or the negative pressure fan 2-12 is connected with the moisture air outlet pipe 2-7 to draw moisture and dust out of the drying bin, and finally the moisture and dust can be connected into a dust removal device or inserted into water through a pipeline to absorb the dust.

The grain poking bin comprises a shell, 3-8 grain poking wheels, 3-10 grain limiting grooves, 3-2 chain wheels, 3-4 chains, 3-3 reversing chain wheels, 3-6 discharge hoppers, 3-7 discharge pipes, 3-5 motors and 5-3 speed reducers, wherein a plurality of alternately arranged grain poking wheels 3-8 and grain limiting grooves 3-10 are arranged in the shell, the grain poking wheels 3-8 are embedded in the grain limiting grooves 3-10, the grain poking wheels 3-8 comprise grain poking rollers and 3-9 grain poking toothed plates, and the grain poking toothed plates 3-9 are radially distributed on the outer annular surface of the grain poking rollers; the grain limiting device comprises grain limiting grooves 3-10, a grain pushing toothed plate 3-9 is embedded in the upper half portion of each grain pushing groove 3-10, a discharging funnel 3-6 is arranged below each grain pushing groove, each discharging funnel 3-6 is connected with a feeding hole of a circulating elevator through a discharging pipe 3-7, a reversing chain wheel 3-3 is arranged outside a shell, a chain wheel 3-2 is arranged at the end portion, located outside the shell, of each grain pushing wheel 3-8, a motor 3-5 and a speed reducer 5-3 are arranged on a base 4, the motor 3-5 drives the speed reducer 5-3, and the output end of the speed reducer 5-3 drives the chain wheel 3-2 at one end of each grain pushing wheel 3-8 through a chain 3-4 and the reversing chain wheel 3-3.

The chain wheel 3-2 is a transmission component for driving the grain poking wheel 3-8, the chain wheel 3-2, the reversing chain wheel 3-3 and the chain 3-4 which are positioned at the output end of the motor 3-5 drive the grain poking wheel 3-8 to realize synchronous motion, grains quantitatively fall from a gap between the grain limiting grooves 3-10 under the poking motion of the grain poking toothed plate 3-9 on the grain poking wheel 3-8, and finally enter the circulating elevator for re-feeding from a material return pipeline formed by the discharging hopper 3-6 and the discharging pipe 3-7 to return to the grain storage bin shell 1-1. The constant-speed blanking can ensure that the grain has sufficient time to absorb the heat of hot air in the drying bin, and the bottom of the grain pushing bin falls into the feeding port of the circulating elevator through the discharging hopper 3-6 and the discharging pipe 3-7.

The drying bin comprises an air inlet chamber 2-8, a drying chamber and an air outlet chamber 2-9, the inner space of a drying bin shell 2-1 is the drying chamber, wherein one side of the air inlet chamber 2-8 is connected with an air outlet of a heat exchanging part of a heat source device 2-6 through a hot air inlet pipe 2-4, the air inlet chamber 2-8 is sequentially connected with the drying chamber and the air outlet chamber 2-9, the other side of the air outlet chamber 2-9 is connected with a negative pressure fan 2-12 through a moisture air outlet 2-3 and a moisture air outlet pipe 2-7, and a plurality of horn-shaped drying grooves 2-5 are embedded in the drying chamber and symmetrically distributed in a staggered manner along an air path in the drying chamber.

The heat of the heat exchange part in the heat source device 2-6 is taken as a carrier through air, the heat enters the drying bin through the hot air inlet pipe 2-4, the hot air enters from the inside of the horn-shaped drying groove 2-5 at the side of the air inlet chamber 2-8, the heat is transmitted along the inside of the upper sliding grain plate 2-5-2 in the horn-shaped drying groove 2-5, the heat can escape while being transmitted, the hot air forms a spiral motion track, finally the hot air escapes from the horn-shaped drying groove 2-5 which is distributed in a staggered mode and is fully contacted with grains, and the heat is transmitted to the grains, wherein the vertical height of the hot air inlet 2-2 is lower than that of the moisture air outlet 2-3, and the rule that the hot air is easy to ascend and advance is better met. The temperature of the entering air can reach about 50-150 ℃, and the temperature can be finally reduced to about 10-30 ℃ after the entering air passes through grains. According to different food crops and water, the temperature and the precipitation rate are different during drying, and the precipitation rate is 0.8-1.5% per hour.

The drying bin comprises an air inlet chamber 2-8, a drying chamber and an air outlet chamber 2-9, wherein one side of the air inlet chamber 2-8 is connected with an air outlet of a heat exchanging part of a heat source device 2-6 through a hot air inlet pipe 2-4, the air inlet chamber 2-8 is sequentially connected with the drying chamber and the air outlet chamber 2-9, the other side of the air outlet chamber 2-9 is connected with the atmosphere through a moisture air outlet 2-3 and a moisture air outlet pipe 2-7, a positive pressure fan 2-12' is connected with an air inlet of the heat exchanging part of the heat source device 2-6 through a pipeline, and a plurality of horn-shaped drying grooves 2-5 are embedded in the drying chamber and symmetrically distributed in the drying chamber along an air path in a staggered mode.

The air inlet chamber 2-8 is an air chamber for buffering hot air from flowing from one end of the multi-layer and multi-column horn-shaped drying groove 2-5 to the other end, the air outlet chamber 2-9 is an air chamber for buffering moisture from flowing from one end of the multi-layer and multi-column horn-shaped drying groove 2-5 to the atmosphere, the moisture air outlet 2-3 of the air outlet chamber 2-9 is connected with one end of a moisture air outlet pipe 2-7, and the tail end of the moisture air outlet pipe 2-7 can be connected with a dust removal device or inserted into water for dust adsorption.

The horn-shaped drying grooves 2-5 are arranged in a head-tail staggered manner, the lower portion of the head end air inlet side covers the grain plate 2-5-1 to extend longer, the lower portion of the tail end covers the grain plate 2-5-1 to extend shorter, the cross section size from the air inlet side to the air outlet side of the horn-shaped drying grooves 2-5 is gradually reduced, the horn-shaped drying grooves can adapt to the condition that positive pressure fans 2-12' are adopted for air supply, due to the small difference of air pressures at the two ends, hot air can uniformly escape from the head end and the tail end of the horn-shaped drying grooves 2-5, the phenomenon that a large amount of hot air paths are concentrated at the slightly large air inlet end of the air pressure and the heat transfer efficiency of the drying bin is inconsistent is avoided. When the negative pressure fan 2-12 is used for supplying air, the horn-shaped drying groove 2-5 connected with the hot air inlet pipe 2-4 can follow the principle, and the cooled damp air is diffused from the horn-shaped drying groove 2-5 connected with the damp air outlet 2-3.

The horn-shaped drying groove 2-5 comprises an upper grain sliding plate 2-5-2, a lower grain baffle plate, a fixing plate 2-5-5 and a fixing lug 2-5-3, wherein the middle part of the upper grain sliding plate 2-5-2 is folded into an inverted V shape, two side edges of the upper grain sliding plate 2-5-2 are respectively connected with the lower grain baffle plate with an inner ridge, one end opening of the upper grain sliding plate 2-5-2 is provided with the fixing lug 2-5-3 in an outward extending mode, the other end opening of the upper grain sliding plate 2-5-2 is provided with the fixing plate 2-5-5 in an inward extending mode, and fixing holes 2-5-6 are formed in the fixing lug 2-5-3 and the fixing plate 2-5-5.

The fixing lugs 2-5-3 are used for fixing the horn-shaped drying groove 2-5 at the outer side, and one end of the horn-shaped drying groove 2-5 is fixed on the drying bin shell 2-1 through the mounting holes 2-5-4 and the bolts on the fixing lugs. The fixing plate 2-5-5 is a mode of fixing the horn-shaped drying groove 2-5 at the inner side, and one end of the horn-shaped drying groove 2-5 is fixed on the drying bin shell 2-1 through the fixing hole 2-5-6 and the bolt on the fixing plate. The upper sliding grain plates 2-5-2 distributed in a staggered way can lead grains to roundly fall back and forth in the upper sliding grain plates, and the grains are contacted with flowing hot air in the falling process to realize heat exchange. The lower grain shielding plate 2-5-1 can prevent the phenomenon that the inner space of the upper grain sliding plate 2-5-2 is extruded to be reduced due to the fact that the grain slides upwards and returns to the inner part of the grain sliding plate 2-5-2 in the sliding process due to accumulation, the flow of hot air is not kept favorably, the wind resistance of the rear-end negative pressure fan 2-12 or the front-end positive pressure fan 2-12' can be increased undoubtedly, and the drying efficiency is lowered.

The bottoms of the air inlet chamber 2-8 and the air outlet chamber 2-9 are provided with reverse flow inclined plates 2-11, and the bottoms of the joints of the drying chamber, the air inlet chamber 2-8 and the air outlet chamber 2-9 are provided with reverse flow holes 2-10 matched with the reverse flow inclined plates 2-11.

When grains flow downwards from the multi-layer and multi-row horn-shaped drying grooves 2-5 to enter the grain stirring bin, individual grains jump out to fall into the air inlet chamber 2-8 and the air outlet chamber 2-9, and if the grains cannot automatically return to the original path to enter the grain stirring bin, the bottoms of the air inlet chamber 2-8 and the air outlet chamber 2-9 are manually disassembled at regular intervals to be cleaned. Through the inclined reverse flow inclined plates 2-11 and the reverse flow holes 2-10 corresponding to the lowest parts of the bottom plates of the reverse flow inclined plates 2-11, grains can automatically fall into the original path to enter the grain poking bin, so that manual cleaning is not needed, and the working procedures are saved.

The circulating elevator is a bucket elevator, which comprises a shell, a driving lifting wheel, a reversing wheel, a traction belt 5-1, a hopper, a lifting motor 5-4 and a speed reducer 5-3, the outer sides of the upper end and the lower end of the shell are respectively provided with a discharge port and a feed port, the inner sides of the upper end and the lower end of the shell are respectively provided with a lifting reversing wheel and a lifting driving wheel 5-6, a belt is sleeved between the lifting reversing wheel and the lifting driving wheel 5-6, the outer ring surface of the belt is provided with a plurality of hoppers, the lifting driving wheel 5-6 is contacted with the inner side surface of the belt through a hollowed outer ring surface, the hollowed outer ring surface is formed by surrounding a plurality of driving contact rods 5-5 in an interval and uniform annular distribution, the shaft of the lifting driving wheel 5-6 is connected with the output end of a speed reducer 5-3 through belt transmission, and the output end of a motor 3-5 is connected with the input end of the speed reducer 5-3.

The lifting motor 5-4 drives the lifting driving wheel 5-6 to rotate through the speed reducer 5-3 and the belt pulley 5-7, the outer ring surface of the lifting driving wheel 5-6 is connected with the inner ring surface of the traction belt 5-1 after being tensioned through the driving contact rods 5-5 distributed in an annular mode, grain particles clamped between the lifting driving wheel 5-6 and the traction belt 5-1 can be reduced as far as possible under the condition that friction force is guaranteed, accordingly, the probability that the grain is crushed by extrusion is reduced, and the purposes of grain lifting, grain circulating drying and low grain crushing rate are guaranteed to the maximum extent. The circulating elevator is a bucket elevator, and is mainly characterized in that the circulating elevator is tightly sleeved with a lifting driving wheel 5-6 rotating at the bottom through a driving contact rod 5-5 uniformly distributed in a ring shape and a flexible traction belt 5-1, and the lifting of grains is realized after the circulating elevator rotates. A plurality of hoppers are arranged on the traction belt 5-1 at intervals to lift the grains at the feed inlet into the grain storage bin again.

The heat source devices 2-6 are coal-fired furnaces, natural gas furnaces, liquefied gas furnaces, biomass particle furnaces, biomass oil furnaces or electric furnaces, air enters a drying bin after passing through a heat exchanger in the heat source devices, the heat exchanger absorbs heat in the furnace, the heat is absorbed by flowing cold air to heat up the air into hot air, the hot air is conveyed into the drying bin to exchange heat with grains, and the ladder stand 6 is used for maintaining and maintaining components such as a discharge plate, a material level device, a circulating elevator and the like at the top of the dryer

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, many modifications and decorations can be made without departing from the inventive concept of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (10)

1. The utility model provides a grain drying-machine which characterized in that: the drying device comprises a base, a grain poking bin, a drying bin, a grain storage bin, a circulating elevator, a heat source device and an air blowing device, wherein the base is sequentially connected with the grain poking bin, the drying bin and the grain storage bin, the bottom of the grain poking bin is connected with a bottom feeding hole of the circulating elevator through a pipeline, a top feeding hole of the circulating elevator is connected with a feeding hole of the grain storage bin through a pipeline, one side of the drying bin is connected with the heat source device through a pipeline, and the air blowing device outputs a heat source from the heat source device and passes through the inside of the drying bin.

2. The grain dryer of claim 1, wherein: the air blowing device comprises a heat source device, a hot air inlet pipe, a moisture air outlet pipe and a negative pressure fan, wherein one side of the drying bin is connected with the air outlet of the heat source replacement part through the hot air inlet pipe, and the other side of the drying bin is connected with the negative pressure fan through the moisture air outlet and the moisture air outlet pipe.

3. The grain dryer of claim 1, wherein: the air blowing device comprises a heat source device, a hot air inlet pipe, a moisture air outlet pipe and a positive pressure fan, wherein one side of the drying bin is connected with the air outlet of the heat source replacement part through the hot air inlet pipe, the other side of the drying bin is connected with the atmosphere through the moisture air outlet and the moisture air outlet pipe, and the positive pressure fan is connected with the air inlet of the heat source replacement part through a pipeline.

4. The grain dryer of claim 1, wherein: the grain shifting bin comprises a shell, a grain shifting wheel, a grain limiting groove, a chain wheel, a chain, a reversing chain wheel, a discharging funnel, a discharging pipe, a motor and a speed reducer, wherein the shell is internally provided with a plurality of alternately arranged grain shifting wheels and grain limiting grooves; connecting portion between the limit grain groove are equipped with down the grain mouth, and the first half of lower grain mouth has inlayed and has dialled the grain pinion rack, and the below of lower grain mouth is equipped with ejection of compact funnel, and ejection of compact funnel passes through the feed inlet that the discharging pipe connects circulation lifting machine, and the casing is equipped with the switching-over sprocket outward, dials the grain wheel and is located the tip outside the casing and be equipped with the sprocket, and motor and speed reducer are established on the base, and the motor drives the speed reducer, and the output of speed reducer is dialled the sprocket of grain wheel one end through chain and switching-over sprocket drive.

5. The grain dryer of claim 2, wherein: the drying bin comprises an air inlet chamber, a drying chamber and an air outlet chamber, wherein one side of the air inlet chamber is connected with an air outlet of a heat source replacement heat part through a hot air inlet pipe, the air inlet chamber is sequentially connected with the drying chamber and the air outlet chamber, the other side of the air outlet chamber is connected with a negative pressure fan through a moisture air outlet pipe, and a plurality of horn-shaped drying grooves are embedded in the drying chamber and symmetrically and alternately distributed along an air path in the drying chamber.

6. The grain dryer of claim 3, wherein: the drying bin comprises an air inlet chamber, a drying chamber and an air outlet chamber, wherein one side of the air inlet chamber is connected with an air outlet of the heat source heat exchange part through a hot air inlet pipe, the air inlet chamber is sequentially connected with the drying chamber and the air outlet chamber, the other side of the air outlet chamber is connected with the atmosphere through a moisture air outlet pipe, a positive pressure fan is connected with an air inlet of the heat source heat exchange part through a pipeline, a plurality of horn-shaped drying grooves are embedded in the drying chamber, and the horn-shaped drying grooves are symmetrically and alternately distributed in the drying chamber along an air path.

7. The grain dryer of claim 5 or 6, wherein: the horn-shaped drying groove comprises an upper grain sliding plate, a lower grain baffle plate, a fixing plate and fixing lugs, wherein the middle part of the upper grain sliding plate is folded in half into an inverted V shape, two side edges of the upper grain sliding plate are respectively connected with the lower grain baffle plate with inner ridges, one port of the upper grain sliding plate extends outwards to be provided with the fixing lug, the other port extends inwards to be provided with the fixing plate, and the fixing lug and the fixing plate are both provided with fixing holes.

8. The grain dryer of claim 5 or 6, wherein: the bottom of air inlet chamber and air-out room is equipped with the palirrhea swash plate, and the bottom of drying chamber and air inlet chamber, air-out room junction all is equipped with the palirrhea hole that matches the palirrhea swash plate.

9. The grain dryer of claim 1, wherein: the circulation lifting machine is a bucket elevator, and comprises a shell, a driving lifting wheel, a reversing wheel, a traction belt, a hopper, a lifting motor and a speed reducer, wherein the outer sides of the upper end and the lower end of the shell are respectively provided with a discharge port and a feed port, the inner sides of the upper end and the lower end of the shell are respectively provided with the lifting reversing wheel and the lifting driving wheel, the belt is sleeved between the lifting reversing wheel and the lifting driving wheel, a plurality of hoppers are arranged on the outer annular surface of the belt, the lifting driving wheel is contacted with the inner side surface of the belt through a hollowed-out outer annular surface, the hollowed-out outer annular surface is formed by spacing a plurality of driving contact rods and uniformly and annularly distributed, the shaft of the lifting driving wheel is connected with the output end of the speed reducer through belt transmission, and the output end of the motor is connected with the input end of the speed reducer.

10. The grain dryer of claim 1, wherein: the heat source device is a coal-fired furnace, a natural gas furnace, a liquefied gas furnace, a biomass particle furnace, a biomass oil furnace or an electric furnace, and air enters the drying bin after passing through a heat exchanger in the heat source device.

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