JP5174852B2 - Kernel separator, grain air conveying device, and grain air conveying method - Google Patents

Description

  The present invention relates to a grain separator for separating grains from a conveying wind, a grain air conveying apparatus for conveying grains such as rice and wheat, and a grain air conveying method.

Conventionally, grains of rice wheat are refined by a rice mill (milling machine) to remove the surface powdery components, but even once refined grains, the grains rub against each other during transportation. Thus, the powder on the surface is scraped off to form a free powder.
An apparatus for removing the powdery material including the free powdery material is known as a polishing apparatus (see Patent Document 1).
Further, conventionally, the object to be conveyed is conveyed by the high-pressure air of the blower, the object to be conveyed is blown together with the conveying air in a cylindrical cyclone, and the object to be conveyed and the conveying air are reduced in pressure by making the conveying air vortex in the cyclone. A method for separating the two is known (Patent Document 1).
JP 2007-125538 A JP 2004-182372 A

Among the known examples, the former one is once supplied with the grain that has been whitened again into the powdered product cylinder of the rice polishing apparatus and polished with the rice polishing roll, so a drive mechanism is required. There is a problem that the entire equipment becomes large and the equipment costs increase.
That is, if the powdery substances adhering to the grains are not removed, the powdery substances will accumulate in the tank and the conveying device, and maintenance will be difficult. However, there is currently no apparatus for removing powdery substances adhering to the grain other than the rice polishing apparatus.
Moreover, the latter thing among the said well-known examples has the subject that the powdery substance adhering to a grain cannot be removed even if a grain can be isolate | separated from a conveyance wind.
In other words, the cyclone of the known example is originally intended to attenuate the conveying wind, and the grain does not slide on the inner periphery of the cyclone, so that the powder on the grain surface adheres to the grain. It is conveyed to the next process as it is.
And the powdery material generated by the contact between the grains accumulates in the cyclone and becomes an adhering powdery material, and the powdery material is carried to the cyclone exhausting process and the blower, etc., and adversely affects these maintenance. It is not easy.
The present application devised the removal of the powdery material, providing a grain separation device that can remove the powdery material from the grain being conveyed, and using this grain separation device to convey the grain and powder The present invention provides a conveying device and a conveying method that are devised so as to be able to remove an object and collect a powdery substance.

In the present invention, a hopper 10 is connected to the start end of the conveying cylinder 1 connected to the air intake portion of the blower 2, and a grain separating device 12 for separating the grain T from the conveying wind is provided in the middle part of the conveying cylinder 1. A storage tank 11 for storing the grain T separated by the grain separating device 12 is connected to the grain separating device 12, and the grain separating device 12 takes in the conveying wind from the conveying cylinder 1 throughout. A cylindrical intake portion 15 having substantially the same diameter, and a conical cylinder shape that becomes thinner as it goes down below the intake portion 15, and a rotary valve 16 that supplies grains to the storage tank 11 are provided below. and a funnel portion 17, the side surface of the intake portion 15 connected to the supply-side transfer cylinder 31 of the conveying tube 1 to form a part or the whole of the said intake portion 15 funnel 17, the opening hole A powder passing separation part 20 having 18 and the powder Surrounding the periphery of the object passing the separation unit 20 and the outer case 25, and a suction chamber 21 formed between the powder-like material passed through the separation unit 20 and the outer casing 25, the suction chamber 21 of the transfer cylinder 1 by the exhaust side transfer cylinder 27 constitute a powdery substance removing device 13 as configured for suctioning exhaust, before Quito join the club 15, the supply side connector for connecting the front bellflower supply-side transfer cylinder 31 in the tangential direction of the intake portion 15 The nozzle 32 is provided, the inner diameter of the intake section 15 and the wind force of the conveying wind blown from the supply side connection nozzle 32 are relatively set so that the grains abut or slide in the intake section 15, and the intake bottom of the join the club 15 is formed in the opening 50 which is entirely open to connect to the top of the funnel 17, the suction chamber 21 to the exhaust side transfer cylinder mounting member 26 provided above the central portion of the intake portion 15 Exhaust side transfer cylinder 27 of the transfer cylinder 1 to be sucked It is obtained by the grain air conveying device provided with an exhaust-side connection nozzle 28 connected.
In the present invention, a suction cylinder 40 having an upper end facing the exhaust-side connection nozzle 28 is provided at the central portion of the intake section 15, and the lower opening of the suction cylinder 40 is formed on the lower surface of the supply-side transport cylinder 31. It is set as the grain air conveyance apparatus located below.
In the present invention, the portion of the intake portion 15 from the supply-side connection nozzle 32 provided in the intake portion 15 to a predetermined length in the circumferential direction of the intake portion 15 is a grain air conveyance device formed in the non-perforated plate portion 37. Is.
The present invention is a grain air transfer device in which the exhaust side transfer cylinder mounting member 26 is provided with a pressure adjusting mechanism 45 for adjusting the suction pressure in the suction chamber 21.
According to the present invention, the powder passage separation part 20 is provided in the funnel part 17, a suction chamber 21 is formed between the funnel part 17 and the outer case 25, and is provided above the intake part 15 and sealed. This is a grain air transfer device provided with an exhaust side connection nozzle 28 connected to an exhaust side transfer cylinder 27 of the transfer cylinder 1 for sucking the suction chamber 21 into an exhaust side transfer cylinder mounting member 26 having a space. .
In the present invention, a support plate 65 that closes the lower periphery of the intake portion 15 is provided at the top of the funnel portion 17, and the suction chamber 21 is formed by the support plate 65 and the outer case 25. And a connection hose 71 that communicates both of them with the exhaust-side transfer cylinder mounting member 26, and a plurality of the connection hoses 71 are provided at a predetermined interval in the circumferential direction of the intake portion 15. It is a device.
The present invention, the top plate 38 of the intake portion 15, secure the top of the leading portion 67 of the cylindrical predetermined diameter, the lower connection portion join the club 15 preparative and supply side connecting nozzle 32 of the leading portion 67 It is set as the grain air conveyance apparatus located below.
In the present invention, the outer case 25 and the exhaust-side transfer cylinder mounting member 26 are each provided with a check port 76, and each check port 76 is a grain air transfer device in which a closing member 77 is detachably attached. It is.
In the present invention, the grain is put into an embedding hopper 10 connected to the starting end of the transport cylinder 1 that is sucked from the air intake portion of the blower 2 and flows suction air therein, and the input grain is sucked into the transport cylinder 1. The air is conveyed to the powder removing device 13 by wind, and the grains are blown into the cylindrical intake portion 15 of the powder removing device 13 together with the conveying wind, and the conical cylindrical funnel below the intake portion 15 and the intake portion 15 is blown. The grain is dropped while being brought into contact with or slid on the inner periphery of the portion 17, and the conveying wind is attenuated to separate the grain and the conveying wind, and the grains separated from the conveying wind are removed as powder. In the method of storing in the storage tank 11 below the device 13 and supplying the storage tank 11 to the next process, the grains are blown together with the conveying wind from the supply side connection nozzle 32 connected in the tangential direction of the intake portion 15, Formed in intake 15 or funnel 17 The granulate passed suction by the separation unit 20 to the carrier air became kernels and vortex from the outside of the suction chamber 21 of the contact or brought into sliding contact with the granulate passes separating unit 20 a powdery substance F having an opening hole 18 the central portion of the to be separated with grain and powdery substance F, powdery product F obtained by separation preparative said carrier air which is separated from the grain by the transporting cylinder 1 connected to the suction chamber 21 join the club 15 The exhaust material is exhausted and conveyed by the conveying cylinder 1 exhausted from the powdery substance removing device 13 through the exhaust side connection nozzle 28 provided above, and the exhausted and conveyed powdery substance F is separated into the powdery substance in the middle of the conveying cylinder 1. A grain air conveying method in which the powdery substance F separated from the conveying air by the apparatus 22 and separated by the powdery substance separating apparatus 22 is conveyed and recovered by the compressed air from the exhaust part of the blower 2 to the powdery substance recovery part 23; It is a thing.

In invention of Claim 1, it can remove the powdery substance F adhering to the grain T surface using the suction conveyance wind of the air blower 2, Therefore, For removing the powdery substance F A dedicated device is not required, and the facility cost can be reduced in processing facilities such as waste rice. In addition, even in a normal rice milling facility, the powdery substance F adhering during transport is removed, so the transport cylinder 1 It is possible to suppress the accumulation of the powdery substance F in the storage tank 11 and the like, the maintenance work and the maintenance work frequency can be reduced, and the air transfer by the transfer cylinder 1 can prevent the generation of dust in the facility. The environment can be improved, and the grain separation device 12 that separates the grain T and the suction conveying wind can remove the powdery substance F in the grain without requiring a special drive mechanism. In addition, the recovered powder F can be recovered by using the conveying air. The powdery material passage separation part 20 having the opening 18 formed in part or all of the part 15 and the funnel part 17, the outer case 25 surrounding the powdery material passage separation part 20, and the powdery material It has a suction chamber 21 formed between the passage separation unit 20 and the outer case 25, and the suction chamber 21 constitutes the powdery substance removing device 13 as a structure for suctioning and exhausting by the exhaust side transport cylinder 27 of the transport cylinder 1. Therefore, the structure of the powdery substance removing device 13 can be simplified and can be easily combined with the grain separating device 12, and since the conveying air blows in the tangential direction of the intake portion 15, the intake portion 15 and The abutment or sliding contact of the grains with the inner peripheral surface of the funnel part 17 can be performed satisfactorily, the powdery substance F can be removed favorably, and the powdery substance passage separation part 20 is provided in the intake part 15. Therefore, the grain is put on the inner periphery of the intake section 15 by the strong conveying wind. Can be contact or sliding contact, can remove the powdery substance better, also preparative be evacuated conveying air from the suction chamber 21 around the join the club 15, thereby improving the exhaust efficiency.
In the invention of claim 2, the suction cylinder 40 is provided in the central portion of the intake section 15, and the lower opening of the suction cylinder 40 is positioned below the lower surface of the supply-side transport cylinder 31. Can be prevented from being discharged together with the exhaust gas, and loss can be prevented.
In the invention of claim 3 , since the intake portion 15 is formed on the non-perforated plate portion 37 having a predetermined length in the circumferential direction, the eddy current movement of the grain is promoted and the removal of the powdery substance F is favorably performed. it can.
In the invention of claim 4 , since the pressure adjusting mechanism for adjusting the suction pressure in the suction chamber 21 is provided, the resistance of the contact or sliding contact of the grains can be adjusted.
In the invention of claim 5 , the powder passage separation part 20 is provided in the funnel part 17, and the suction chamber 21 is formed outside the funnel part 17. The wind force and the suction force that blows through the funnel portion 17 to the suction chamber 21 around the funnel portion 17 can act to remove the powdered matter F satisfactorily. Since F can be sucked and exhausted together with the conveying air, the suction chamber 21 can be configured using the exhausting configuration of the conveying air, and the configuration can be simplified.
In the invention of claim 6 , since the exhaust-side transfer cylinder mounting member 26 that exhausts the transfer air in the suction chamber 21 is provided above the intake portion 15, the entire grain air transfer device H can be reduced in size and installed. Space can be reduced.
In the invention of claim 7 , since the cylindrical guide part 67 having a predetermined diameter is provided in the intake part 15, the movement of the grains in the intake part 15 can be guided smoothly and reliably, and the powdery substance F Good removal.
In the invention of claim 8, since the inspection port 76 is provided in each of the outer case 25 and the exhaust side transport cylinder mounting member 26, maintenance can be facilitated.
In invention of Claim 9 , since it conveys with the conveyance cylinder 1 which connected the air suction part of the air blower 2, the quality change of the grain T can be prevented and the grain separation apparatus 12 which isolate | separates the grain T and the suction conveyance wind is used. The provided powder removing device 13 can remove the powdered matter F adhering to the grain using the wind force of the conveying wind without requiring a special drive mechanism, and the removed powder. The recovery of the powder F can also use the conveyance air, and there is no need for a dedicated device for removing the powder F, so that the equipment cost can be reduced in processing facilities such as waste rice. Even if it is a facility, the powdery substance F adhering during conveyance is removed, so that the accumulation of the powdery substance F in the conveyance cylinder 1, the storage tank 11, etc. can be suppressed, and maintenance work and maintenance work frequency can be reduced. It is Ru can.

Schematic arrangement diagram of an example of a transport device. The schematic arrangement drawing of other examples of a conveying device. Sectional drawing of a powdery substance removal apparatus. Sectional drawing of the opening part of a powdery material passage isolation | separation part. The cross-sectional top view of a powdery material removal separation apparatus. FIG. The action state schematic sectional drawing. The action state schematic sectional drawing of a powdery substance removal apparatus. The side view of the upper case of a powdery substance removal apparatus. The rear view. Sectional drawing of a cover member. The front view of a lower case. The top view of a lower case and a funnel part. The perspective view of the mounting state of the funnel. The schematic sectional drawing of the example which provided the residue discharge port below the discharge port of the funnel part. The front view of the other example of a powdery material removal apparatus. The same side view. The front view of an intake part. The same side view. FIG. The top view of a support plate. The front view of a lower case.

An embodiment of an apparatus for carrying out the method of the present invention will be described with reference to the drawings. Reference numeral 1 denotes a transfer cylinder that constitutes a transfer path of a transfer apparatus H that conveys grains such as rice wheat and feed, and the transfer apparatus H includes One blower 2 is provided.
The air blower 2 is a well-known device, and is configured to rotate a fan (not shown) so as to be sucked from one side of the air blower 2 and exhausted to the other. One end of the transport cylinder 1 is connected to the intake section 3 of the blower 2 to form a suction transport air passage 4. Reference numeral 5 denotes an exhaust part of the blower 2, which exhausts from the exhaust part 5.
The lower end of the stuffing hopper 10 is connected to the start end side of the transport cylinder 1.
Since the suction conveyance wind sucked by the blower 2 is lower in temperature than the high-pressure exhaust wind compressed by the blower 2 and exhausted from the exhaust unit 5, Suppressing or preventing the rise to prevent the grain T from being altered.

A storage tank 11 for storing the grain T is provided between the blower 2 and the stuffing hopper 10. On the upper side of the storage tank 11, a grain separation device 12 for separating the grain from the conveying wind for carrying the grain is provided, and the grain separation device 12 is generated by cutting the surface of the grain such as straw or bran. The powdery substance removal apparatus 13 which removes the powdery substance F to perform is provided.
In this case, the powder removing device 13 is not like a conventional rice polishing device for polishing the surface of the grain as in the prior art, but the grain separating device 12 used as a part of the grain air conveying device H. Provide in.
Therefore, the grain separator 12 separates the grain and the conveying wind, and removes the powdery substance F such as straw or bran on the grain surface.
Therefore, although it can be used even with a normal grain air conveying device H, once it is used for conveying grains that have been refined, the powder F such as bran or bran on the surface of the grain being conveyed It can be removed, especially when it is used for transporting scrap rice, which is a raw material for feed and confectionery, it can remove the powdered material F during transportation, eliminates the need for a dedicated powdery material removal device, and reduces capital investment. Yes, the installation effect is high.

The grain separation device 12 has an intake portion 15 that takes in and attenuates the conveying air from the conveying cylinder 1 and a conical cylinder shape that becomes narrower as it goes down below the intake portion 15. 11 and a funnel portion 17 provided with a rotary valve 16 for supplying grains, and a part or all of the intake portion 15 and the funnel portion 17 has an opening 18 in the powder passage separation portion 20. The formed powdery substance removing device 13 is provided.
In the embodiment, the intake portion 15 is formed in a cylindrical shape with substantially the same diameter from start to finish, but may be a rectangular tube shape.

While the grain separator 12 is rotated by blowing the grain into the intake 15 of the grain separator 12 together with the conveying air, the grain is introduced into the loading hopper 10 and is conveyed by air to the grain separator 12. Drop and attenuate the conveying wind to separate the grain from the conveying wind.
The grains falling while rotating in the intake portion 15 fall in the funnel portion 17, and the grains in the intake portion 15 and the funnel portion 17 are in the form of powder having an opening hole 18 formed in the intake portion 15 or the funnel portion 17. The powdery substance F is removed by contacting or slidingly contacting the inner periphery of the powdery substance passage separating unit 20 of the substance removing device 13, and the removed powdery substance F is sucked into the suction chamber outside the powdery substance passing separation part 20. 21 to separate the powdery substance F from the grain, and the separated powdery substance F is exhausted and conveyed to the powdery substance separating apparatus 22 by the conveying cylinder 1 that exhausts the conveying air from the grain separating apparatus 12. The powdery substance F separated by the powdery substance separation device 22 is conveyed and recovered to the powdery substance recovery part 23 by the compressed air from the exhaust part of the blower 2.

On the other hand, the grain from which the powdery substance F has been removed and separated from the air enters the storage tank 11 and is supplied from the storage tank 11 to the next process G such as color selection work or weighing / bagging work.
3 to 14, the powdery substance separating device 20 of the powdery substance removing device 13 of the grain separating device 12 is provided in the intake part 15, and the powdery substance removing device 13 is provided in the intake part 15. A suction chamber 21 is formed between the outer periphery and the outer case 25, and the exhaust side transport cylinder 27 of the transport cylinder 1 sucks the suction chamber 21 into the exhaust side transport cylinder mounting member 26 provided above the intake portion 15. An exhaust-side connection nozzle 28 connected to is provided.
Specifically, the intake portion 15 is provided in the upper case 30 of the outer case 25. The intake section 15 is provided with a supply side connection nozzle 32 for connecting the supply side transfer cylinder 31 of the transfer cylinder 1. The upper case 30 is configured by detachably attaching an exhaust-side transfer cylinder mounting member 26 to an upper portion of a cylindrical portion 33 having a substantially the same diameter throughout.
Reference numeral 29 denotes an engaging member that can be engaged and disengaged with one operation without using a tool, and 29A denotes a locking portion with which the engaging member 29 is engaged.
An exhaust-side connection nozzle 28 for connecting the exhaust-side transport cylinder 27 of the transport cylinder 1 is provided at the center of the exhaust-side transport cylinder mounting member 26.

The intake portion 15 is provided with a guide tube 35 that is detachably connected to the supply side connection nozzle 32. A large number of opening holes 18 through which grains do not pass are formed in a part or all of the intake part 15 and formed in the powdery substance passage separating part 20 to constitute the powdery substance removing device 13.
The intake part 15 separates and removes the powder F attached to the grain once refined while contacting or slidingly contacting the grain with the opening hole 18 from the grain.
Therefore, the supply-side connection nozzle 32 (guide cylinder 35) is provided in the tangential direction of the intake portion 15 to positively vortex the conveying air blown from the supply-side connection nozzle 32 so that the grains are contained in the intake portion 15. It is in contact or sliding contact with the circumference.
Moreover, the internal diameter of the intake part 15 and the wind force of the conveyance wind blown from the supply side connection nozzle 32 are set relatively so that the grain abuts or slides in the intake part 15.
That is, when the inner diameter of the intake section 15 is increased with respect to the conveying air blown from the supply side connection nozzle 32, the conveying wind enters the intake section 15 and the wind force is attenuated immediately, and the grains fall by their own weight, and the intake section 15 Therefore, in the present application, the grain is removed to such an extent that the powder F on the surface of the grain is removed and the impact such as cracking of the grain is not received. At least the inner diameter of the intake section 15 and the wind force of the conveying wind blown from the supply side connection nozzle 32 are set relatively so as to contact the inner peripheral surface of the input section 15.

The opening hole 18 may be configured to allow the powdered material F to pass through, for example, a mesh (mesh) formed by various processing methods such as plain weave or twill weave, or a perforated plate such as punching metal. The direction of the hole 18 may be either vertical or horizontal, but if the peripheral edge of the opening hole 18 is a sharp corner 36 called a so-called edge, when the grain collides, the adhered powdery substance of the grain This is suitable because F is removed and the removal / separation efficiency is improved.
Further, a predetermined length portion in the circumferential direction of the intake portion 15 from the attachment portion of the guide tube 35 of the intake portion 15 is formed in a non-porous non-perforated plate portion 37. The non-perforated plate portion 37 prevents the conveying air blown from the supply-side connecting nozzle 32 from escaping, and the conveying air causes the grains to come into contact with or slide in the powdery material passage separating portion 20 having the opening holes 18. Expect to meet.
A portion between the outer periphery of the powder passage separator 20 of the intake 15 and the inner periphery of the upper case 30 is formed in the suction chamber 21 to constitute the powder removing device 13. The suction chamber 21 sucks the powdery substance F in the powdery substance passage separation unit 20 and conveys it by the exhaust side conveyance cylinder 27.
A vertical suction cylinder 40 is provided at the center position of the top plate 38 that closes the upper side of the intake portion 15, and the small diameter portion 41 at the top of the suction cylinder 40 faces the exhaust side connection nozzle 28. A gap 43 is formed between the opening 42 of the exhaust side connection nozzle 28 and the outer periphery of the small diameter portion 41. The gap 43 sucks and exhausts the suction chamber 21.

The lower opening 44 at the bottom of the suction cylinder 40 is positioned below the lower surface of the supply-side conveyance cylinder 31.
A pressure adjusting mechanism 45 that adjusts the suction pressure in the suction chamber 21 is provided on the exhaust side transfer cylinder mounting member 26 of the upper case 30. The pressure adjustment mechanism 45 has one end of the suction adjustment cylinder 46 attached to the exhaust-side transfer cylinder attachment member 26, and a valve plate 47 that changes the inner diameter of the suction adjustment cylinder 46 to be wide or narrow is provided in the suction adjustment cylinder 46. The other end of the suction adjustment cylinder 46 is connected to an intermediate portion of the exhaust side conveyance cylinder 27.
That is, the suction adjusting cylinder 46 serves as a bypass that connects the suction chamber 21 and the exhaust-side transport cylinder 27 and adjusts the pressure in the suction chamber 21.
The lower part of the powdery substance passage separation part 20 is formed in the opening part 50 opened on the entire surface, and the upper part of the funnel part 17 is connected to the opening part 50. The funnel portion 17 is formed to be thinner and narrower as it goes downward, and the wind pressure of the conveying wind is attenuated and raised, the grain is dropped downward, and the grain and the conveying wind are separated.

The outer periphery of the funnel portion 17 is surrounded by the lower case 52. A support portion 53 is provided on the upper portion of the lower case 52. The support part 53 fixes the upper part of the lower case 52 with the ring part 54 by the attachment part 55. The funnel portion 17 is inserted into the ring portion 54 from above, and the flange portion 56 at the top of the funnel portion 17 is placed on the ring portion 54 and attached. In addition, on the upper surface of the flange portion 56 of the funnel portion 17 on the support portion 53, a flange portion 57 at the lower edge of the intake portion 15 of the powdery substance passage separation portion 20 is placed.
That is, the intake portion 15 is placed on the ring portion 54 of the support portion 53. In this state, the intake portion 15 is rotated in the upper case 30, and the guide tube 35 of the intake portion 15 is connected to the supply side of the upper case 30. The nozzle 32 is connected.
On the contrary, when the exhaust side conveyance cylinder mounting member 26 is removed, the intake part 15 is rotated, the guide cylinder 35 is removed from the supply side connection nozzle 32 of the upper case 30, and the intake part 15 is pulled upward, The passage separation unit 20 can be removed from the outer case 25, and maintenance is performed.
Thus, in order to make mounting | wearing of the intake part 15 easy, although the guide cylinder 35 and the supply side connection nozzle 32 of the intake part 15 are formed in the different body, you may form integrally.

FIG. 15 is a schematic view in which a discharge port 59 is provided in the lower part of the funnel portion 17 and a residue outlet 59A is provided between the discharge port 59 and the rotary valve 16. Switching to the residue outlet 59A is performed. A valve 59B is provided. 59C is a take-out trough, which is switched to close the discharge port 59 and open the residue take-out port 59A by the switching valve 59B, and discharges the residue in the funnel portion 17.
The exhaust-side transfer cylinder 27 has a powdery substance separating apparatus (dust cyclone) for separating the powdery substance F separated and conveyed by the grain separator 12 (powder removing apparatus 13) from the conveying air. 22 is provided.
The configuration of the powder separation device 22 is arbitrary, and the discharge portion of the powder separation device 22 is connected to an intermediate portion of the exhaust pipe 61 connected to the exhaust port of the blower 2 so that the powder separation device 22 is connected. The powdery substance F separated in step 1 is conveyed to the powdery substance recovery unit 23 by the exhaust pipe 61.
FIG. 16 and subsequent figures show another embodiment, and the same members as those in the first embodiment are indicated by the same reference numerals.
In this embodiment, a part or all of the funnel part 17 is formed in a powdery substance passing separation part 20 having an opening 18, and the outer periphery of the powdery substance passage separation part 20 is surrounded by an outer case 25, and is in a powdery form. A suction chamber 21 is formed between the material passage separation unit 20 and the outer case 25, and the suction chamber 21 is configured to suck and exhaust by the exhaust-side transport cylinder 27 of the transport cylinder 1, thereby configuring the powdery substance removal device 13. Yes.

Specifically, a support plate 65 is provided on the support portion 53 of the lower case 52 of the outer case 25. On the support plate 65, the lower part of the non-hole intake part 15 is detachably mounted and fixed. The intake portion 15 is provided with a guide tube 35 that is detachably connected to the supply side connection nozzle 32. The intake portion 15 is formed in a non-porous non-porous plate portion 37 in the entire circumferential direction. Reference numeral 66 denotes an opening hole of the support plate 65.
In addition, the non-perforated top plate 38 above the intake portion 15 is provided with a cylindrical guide portion 67 having a predetermined diameter. The lower part of the guide part 67 is positioned below the connection part with the supply side connection nozzle 32.
The opening 50 below the intake portion 15 is aligned with the opening hole 66 of the support plate 65. The flange portion 56 of the funnel portion 17 is inserted into the opening hole 66 of the support plate 65 from above, and the upper portion of the funnel portion 17 and the lower portion of the intake portion 15 are connected in close contact.
The funnel portion 17 is formed to become thinner gradually as it goes downward. The funnel portion 17 is provided with an opening hole 18 through which the grain does not pass over the entire circumference to be formed in the powder material passage separation portion 20, and the powder material removal device 13 is provided in 17.

The powdery substance passage separation part 20 of the funnel part 17 makes the grain contact or slide in contact with the inner periphery of the powdery substance passage separation part 20 and passes the powdery substance F in the funnel part 17 from the opening hole 18. To separate and remove from the grain.
Therefore, if the opening hole 18 of the funnel portion 17 is also formed by a perforated plate such as a mesh (mesh) formed by various processing methods such as a plain weave or a twill weave, and a punching metal or the like. Well, the direction of the opening hole 18 may be either vertical or horizontal, but if the periphery of the opening hole 18 is a sharp corner portion 36 called a so-called edge, when the grain collides, the adhesion of the grain It is suitable because the powdery material F is shaved and the removal / separation efficiency is improved.
The outer periphery of the funnel portion 17 is surrounded by the lower case 52. The upper part of the lower case 52 is attached in close contact with the support plate 65, and the suction chamber 21 is formed between the outer periphery of the funnel portion 17 and the inner periphery of the lower case 52. The suction chamber 21 sucks and exhausts the powdery substance F in the lower case 52 together with the transport wind, and transports it by the exhaust-side transport cylinder 27.

16 and the following embodiments, the inner diameter of the intake portion 15 and the funnel portion 17 and the wind force of the conveying wind blown from the supply side connection nozzle 32 are set so that the grains abut or slide in the intake portion 15 and the funnel portion 17. Relative to each other.
The volume of the suction chamber 21 between the inner diameter of the funnel portion 17 and the inner periphery of the lower case 52 is also set relatively so that the grains abut or slide in the funnel portion 17.
That is, when the inner diameter of the funnel portion 17 is increased with respect to the conveying air sucked from the suction chamber 21, the conveying air in the funnel portion 17 is attenuated, and the grain falls by its own weight, and the inner periphery of the funnel portion 17. Since it does not abut or slide on the surface, it abuts against the inner peripheral surface of the funnel portion 17 to such an extent that the powder F on the surface of the grain is removed and is not subject to impact such as cracking of the grain. As described above, it is preferable to relatively set the inner diameter of the intake portion 15 and the wind force of the conveying wind sucked from the suction chamber 21.

A plurality of lower pipes 70 are provided at predetermined intervals on the support plate 65, and a lower portion of a connection hose 71 is provided on each lower pipe 70. The upper portion of the connection hose 71 is connected to the upper pipe 72 of the exhaust side transfer cylinder mounting member 26 provided above the intake portion 15 with a predetermined interval. The upper pipe 72 is detachably attached to an attachment member 73 that closes the lower surface of the exhaust side conveyance cylinder attachment member 26. The exhaust-side transport cylinder mounting member 26 is detachably mounted on the mounting member 73 with the upper portion of the support rod 74, and the lower portion of the support rod 74 is detachably mounted on the support plate 65.
The inside of the suction chamber 21 is sealed, and the air in the suction chamber 21 is exhausted by the exhaust side transfer cylinder 27.
The mounting member 73 is provided with an exhaust guide member 75.
At the lower part of the lower case 52, there is provided a rotary valve 16 for discharging the grains without leaking the conveying air.
Each of the outer case 25 and the exhaust-side transport cylinder mounting member 26 is provided with an inspection port (cleaning port) 76, and a closing member 77 is detachably attached to each inspection port 76.

(Operation of Example)
The tension shutter 12 of the tension hopper 10 is closed and the grain T is tensioned to the tension hopper 10. Next, the air passage opening / closing valve is closed to energize the blower 2. When the valve is opened, the air in the conveying cylinder 1 is sucked by the blower 2, and thereby, the inside of the outer case 25 of the powdery substance removing device 13 becomes negative pressure, and the grain T in the embedding hopper 10 is transferred to the conveying cylinder. 1, the suction air flowing through the transport cylinder 1 reaches the supply-side connection nozzle 32 at the connection portion between the supply-side grain transport cylinder 31 and the powdery substance removing device 13.
Since the supply side connection nozzle 32 is connected to the intake part 15 of the grain separation device 12 and the supply side connection nozzle 32 opens in the tangential direction of the intake part 15, the grain T is conveyed from the supply side connection nozzle 32 to the conveying wind. At the same time, the air blown into the intake unit 15 is blown into the intake unit 15 as a vortex and is reduced in pressure while being reduced in pressure from the opening 18 of the powder passing separation unit 20 of the intake unit 15 of the powder removal unit 13. It blows through the suction chamber 21 and is exhausted from the exhaust side connection nozzle 28.

At this time, the free powdery substance F (rice cake and bran) that is released from the grain in the conveying wind and the grain powder (rice cake and bran) that are generated during conveyance are separated by passing through the powdery substance together with the conveying wind. The gas is discharged from the exhaust side connection nozzle 28 through the suction chamber 21 from the opening hole 18 of the portion 20.
Further, the grain rides on the conveying air blown from the supply-side connecting nozzle 32 and becomes a vortex in the intake section 15, and moves in contact with or slides on the inner periphery of the powdery substance passage separation section 20 of the intake section 15 together with the conveying air. Then, the deposit on the grain surface is removed by the contact or sliding contact resistance when moving in contact or sliding contact.
The grain falls on the lower funnel portion 17 and the conveying wind rises, so that the conveying wind and the grain are separated.
Further, a predetermined length portion in the circumferential direction of the intake portion 15 from the connection portion of the supply side connection nozzle 32 of the intake portion 15 is formed in the non-perforated non-perforated plate portion 37. The transported air does not immediately escape from the opening hole 18 of the powdery substance passage separation unit 20, but is guided to the non-perforated plate part 37 and becomes a vortex.

Therefore, the attenuation of the conveying wind is suppressed by the presence of the non-perforated plate portion 37, and the abutting or sliding contact state between the opening hole 18 of the powdery substance passage separation portion 20 and the grain is favorably performed. The removal of the powder F is promoted.
The top plate 38 of the powdery substance passage separation unit 20 is formed of a non-perforated plate, and a vertical suction cylinder 40 is provided at the center of the top plate 38. The small diameter portion 41 at the top of the suction cylinder 40 is connected to the exhaust side. Since the gap 43 is formed between the opening 42 of the exhaust side connection nozzle 28 and the outer periphery of the small diameter portion 41 so as to face the nozzle 28, the suction chamber 21 is sucked and exhausted by the gap 43, and the intake portion 15. The inside and the funnel portion 17 are sucked by the suction cylinder 40.
Since the lower opening 44 of the lower portion of the suction cylinder 40 is positioned below the lower surface of the supply-side transport cylinder 31, the grains that have entered the intake section 15 from the guide cylinder 35 are The suction and discharge from the lower opening 44 is prevented.
Since the lower part of the intake part 15 is opened on the entire surface and the funnel part 17 is provided below the intake part 15, the powdery substance F is in the axial direction of the powdery substance passage separating part 20 of the intake part 15. Sucked in the crossing direction, the conveying wind is attenuated by the funnel portion 17 and rises, and the grain falls downward.

Therefore, the powder F is continuously removed by the powder removing device 13 from the grain conveyed to the powder removing device 13 by the blower 2.
As a result, of the air conveyance conveyance mechanism of the grain air conveyance device H, the powder separation device 13 for removing the powder F is incorporated in the grain separation device 12 that separates the grain and the conveyance wind. Moreover, the attenuation mechanism of the conveyance wind of the grain separation device 12 can be used as the separation mechanism of the powdery substance removal device 13, which is a rational configuration.
Thus, the outer periphery of the funnel portion 17 is surrounded by the lower case 52, and a support portion 53 that protrudes inward is provided on the upper portion of the lower case 52, and the powdery material passage separation portion 20 is provided on the ring portion 54 of the support portion 53. Since the lower edge of the intake portion 15 is placed, the intake portion 15 is rotated while being placed on the support portion 53, and the guide tube 35 of the intake portion 15 is connected to the supply side connection nozzle 32 of the upper case 30. When the attachment of the intake portion 15 is completed and the exhaust-side transfer cylinder attachment member 26 is attached to the cylindrical portion 33 of the upper case 30, the assembly is completed.
On the contrary, when the exhaust side conveyance cylinder mounting member 26 is removed, the intake part 15 is rotated, the guide cylinder 35 is removed from the supply side connection nozzle 32 of the upper case 30, and the intake part 15 is pulled upward, Since the passage separation part 20 can be removed from the outer case 25, maintenance is easy.

The grains separated from the conveying wind are discharged from the discharge port 54 of the funnel portion 17 without leakage by the rotary valve 16 and supplied to the next step.
Further, the powdery substance F separated from the conveyed grain by the powdery substance removing apparatus 13 of the grain separating apparatus 12 is conveyed to the powdery substance separating apparatus 22 by the exhaust side conveying cylinder 27 of the conveying cylinder 1 and is then powdered. The powdery substance F conveyed by the separator 22 is separated from the conveying air.
The powdery substance F separated by this powdery substance separation apparatus 22 is pumped to the powdery substance recovery part 23 by the exhaust pipe exhaust cylinder 61 of the blower 2 connected to the discharge part of the powdery substance separation apparatus 22.
As described above, the single blower 2 can continuously convey the grain, remove dust such as the powdery substance F and rice flour from the grain, and recover the powdery substance F.
Then, the funnel portion 17 is inserted into the ring portion 54 of the upper support portion 53 of the lower case 52 from above, and the flange portion 56 provided on the upper portion of the funnel portion 17 is placed on the ring portion 54 and attached. The intake portion 15 is placed on the ring portion 54 of the support portion 53, and the intake portion 15 is rotated in the upper case 30 in this state, and the guide cylinder 35 of the intake portion 15 is moved to the supply side connection nozzle 32 of the upper case 30. Connect to.

Therefore, when the exhaust side conveyance cylinder mounting member 26 is removed, the intake part 15 is rotated, the guide cylinder 35 is removed from the supply side connection nozzle 32 of the upper case 30, and the intake part 15 is pulled upward, the powdery substance passes. The separation unit 20 can be removed from the outer case 25, and maintenance is performed.
Further, the funnel portion 17 is pulled upward from the ring portion 54 of the support portion 53 on the upper side of the lower case 52.
Therefore, the lower case 52 of the outer case 25 can be disassembled into the upper case 30 of the outer case 25, the exhaust-side transfer tube mounting member 26, the intake portion 15, and the funnel portion 17, respectively. Perform maintenance.
Thus, in the embodiment shown in FIG. 16 and subsequent figures, the powdery substance removing device 13 is configured by forming the funnel part 17 in the powdery substance passage separating part 20 having the opening hole 18 in a part or all of the funnel part 17. When the grain T is pasted into the tension hopper 10, the grain T in the tension hopper 10 is blown into the intake portion 15 by the supply side transport cylinder 31 of the transport cylinder 1.

The grains blown into the intake part 15 abuts or slides on the inner peripheral surface of the intake part 15, and deposits on the grain surface are removed by resistance when moving in contact or sliding contact.
Further, since the non-perforated top plate 38 above the intake part 15 is provided with a cylindrical guide part 67 having a predetermined diameter, the guide part 67 moves the grains in the intake part 15 in a spiral shape by the conveying wind. It is guided so as to promote contact or sliding movement with the inner peripheral surface of the intake portion 15.
The intake portion 15 is formed of a non-perforated plate, and the upper portion of the intake portion 15 is closed by the top plate 38 and is sucked from the suction chamber 21 on the outer periphery of the funnel portion 17. Becomes a vortex in the intake portion 15 and goes downward, and the grain is also brought into contact with or slidably contacted with the inner peripheral surface of the intake portion 15 together with the conveying wind, and then enters the funnel portion 17 as it is. The surface of the grain is brought into contact with or slidably contacted with the inner peripheral surface, moved downward while contacting or slidably contacting the inner periphery of the powdered material passage separation portion 20 of the funnel portion 17, and the grain surface due to the resistance when moving in contact or slidable contact The deposits are removed.

The outer periphery of the funnel portion 17 is surrounded by the case lower case 52, and the suction chamber 21 is formed between the outer periphery of the funnel portion 17 and the inner periphery of the lower case 52. The grains that move downward while abutting or sliding on the circumference move so as to be pressed against the outside of the funnel portion 17, and the powdery substance F adhering to the surface is removed.
Then, the powdery substance F in the funnel portion 17 is sucked into the suction chamber 21.
Therefore, in the embodiment shown in FIG. 16 and subsequent figures, the grains that have entered the funnel part 17 from the intake part 15 include the weight of the grain, the vortex wind of the conveying wind, and the funnel part 17 to the periphery of the funnel part 17. The suction force that blows through the suction chamber 21 acts to remove the powdery substance F satisfactorily.
Moreover, since the funnel part 17 is formed in the conical shape which becomes a small diameter as it goes below, the pressure at the time of contact | abutting or sliding-contacting to the internal peripheral surface of the funnel part 17 increases further, and powdery substance F removal efficiency To improve.
Further, the powdery substance removing device 13 sucks the conveying air from the suction chamber 21 on the outer periphery of the funnel portion 17 and raises it in the suction chamber 21, so that it rises in the funnel portion 17 unlike the conventional cyclone. The generation of the vortex flow in the direction is suppressed, and the grain does not float in the funnel portion 17 as in the prior art. Therefore, the occurrence of the “floating residual phenomenon” can be prevented, and as a result, the blower 2 is stopped. Even if it does not exist, all the grain T in the funnel part 17 can be discharged | emitted.

A support plate 65 is provided on the support portion 53 of the lower case 52 of the outer case 25, and the support plate 65 mounts and fixes the lower portion of the non-porous intake portion 15 in close contact, and the support plate 65 is provided with a lower pipe 70. A plurality of lower pipes 70 are provided at predetermined intervals. Each lower pipe 70 is provided with a lower portion of a connection hose 71, and the upper portion of the connection hose 71 is provided above the intake portion 15 and is an upper side of a sealed exhaust-side transfer cylinder mounting member 26. Since it is connected to the pipe 72, the conveying air in the funnel part 17 enters the suction chamber 21 from the powdery substance passage separating part 20, and together with the powdery substance F, the exhaust-side conveying cylinder mounting member 26 via the lower pipe 70. It enters the interior and is exhausted by the exhaust side transport cylinder 27.
Therefore, the conveying air that has entered the funnel portion 17 is blown into the suction chamber 21 from the powder passage separating portion 20 of the funnel portion 17 together with the powder F, and is further attached to the exhaust side conveying cylinder through the connection hose 71. Entering the member 26, the powdery substance F is also sucked and exhausted by the exhaust side transport cylinder 27 together with the transport air.

Then, the funnel portion 17 is inserted into the ring portion 54 of the upper support portion 53 of the lower case 52 from above, and the flange portion 56 provided on the upper portion of the funnel portion 17 is placed on the ring portion 54 and attached. Then, the intake portion 15 is placed on the ring portion 54 of the support portion 53, and the lower pipe 70 of the support plate 65 and the upper pipe 72 of the exhaust-side transport cylinder mounting member 26 are connected by the connection hose 71 and assembled.
On the contrary, when the exhaust-side transfer cylinder mounting member 26 is removed, the intake portion 15 is removed, and the funnel portion 17 is further pulled out from the ring portion 54 of the upper support portion 53 of the lower case 52, the outer case 25 The lower case 52 can be disassembled into the upper case 30 of the outer case 25, the exhaust-side transfer cylinder mounting member 26, the intake part 15, and the funnel part 17 for maintenance.
In addition, the outer case 25 and the exhaust-side transport cylinder mounting member 26 are each provided with an inspection port 76, and a closing member 77 is detachably attached to each inspection port 76. When the opening 76 is opened, maintenance such as inspection can be performed.
Each of the above-described embodiments is illustrated and described separately or mixed for easy understanding. However, these embodiments can be combined in various ways, and these expressions can be used for configuration and operation. However, there is a case where a synergistic effect is obtained.

  DESCRIPTION OF SYMBOLS 1 ... Conveyance cylinder, 2 ... Air blower, 4 ... Suction conveyance air path, 5 ... Exhaust part, 10 ... Overhang hopper, 11 ... Storage tank, 12 ... Grain separation apparatus, 13 ... Powdery substance removal apparatus, 15 ... Taking Input part, 16 ... Rotary valve, 17 ... Funnel part, 18 ... Opening hole, 20 ... Powdery substance separation part, 21 ... Suction chamber, 22 ... Powdery substance separator, 23 ... Powdery substance recovery part, 25 ... Outside Case: 26 ... Exhaust side transfer cylinder mounting member, 27 ... Exhaust side transfer cylinder, 28 ... Exhaust side connection nozzle, 30 ... Upper case, 31 ... Supply side transfer cylinder, 32 ... Supply side connection nozzle, 33 ... Cylindrical part, 35 ... guide tube, 36 ... corner portion, 37 ... non-perforated plate portion, 38 ... top plate, 40 ... suction tube, 41 ... small diameter portion, 42 ... opening, 43 ... gap, 44 ... lower opening, 45 ... pressure Adjustment mechanism 46 ... Suction adjustment cylinder 47 ... Valve plate 50 ... Opening part 52 ... Lower case 5 ... support part, 54 ... ring part, 55 ... attachment part, 56 ... flange part, 57 ... flange part, 61 ... exhaust pipe, 65 ... support plate, 66 ... opening hole, 67 ... induction part, 70 ... lower pipe, 71 ... Connection hose, 72 ... Upper pipe, 73 ... Mounting member, 74 ... Support rod, 75 ... Exhaust guide member, 76 ... Inspection port, 77 ... Closure member.

Claims (9)

A paste hopper 10 is connected to the starting end of the conveying cylinder 1 to which the air intake part of the blower 2 is connected, and a grain separating device 12 for separating the grain T from the conveying wind is provided in the middle part of the conveying cylinder 1, A storage tank 11 for storing the grain T separated by the grain separation device 12 is connected to the separation device 12, and the grain separation device 12 has substantially the same diameter from the beginning to the time when the conveyance wind from the conveyance cylinder 1 is taken in. A cylindrical intake portion 15; and a funnel portion 17 provided with a rotary valve 16 for supplying grains to the storage tank 11 at a lower portion in a conical cylinder shape that becomes narrower as it goes down below the intake portion 15. the a, on the side of the intake portion 15 connected to the supply-side transfer cylinder 31 of the conveying tube 1 to form a part or the whole of the said intake portion 15 funnel 17, powders having an opening hole 18 The particulate matter passage separation unit 20 and the powdery matter passage portion An outer casing 25 which surrounds the outer periphery of the part 20, and a suction chamber 21 formed between the powder-like material passed through the separation unit 20 and the outer casing 25, the suction chamber 21 is an exhaust side transfer of the transporting cylinder 1 the cylinder 27 constitutes a powdery substance removing device 13 as configured for suctioning exhaust, before Quito join the club 15, the supply-side connection nozzle 32 for connecting the front bellflower supply-side transfer cylinder 31 in the tangential direction of the intake portion 15 Providing the inner diameter of the intake section 15 and the wind force of the conveying wind blown from the supply side connection nozzle 32 so that the grains abut or slide in the intake section 15; lower is formed in the opening 50 which is entirely open to connect to the top of the funnel 17, to suck the suction chamber 21 to the exhaust side transfer cylinder mounting member 26 provided above the central portion of the intake portion 15 the Connected to the exhaust side transport cylinder 27 of the transport cylinder 1 Grain air conveying device provided with a gas-side connection nozzle 28.   In claim 1, a suction cylinder 40 having an upper end facing the exhaust-side connection nozzle 28 is provided at a central portion of the intake portion 15, and an opening at a lower portion of the suction cylinder 40 is formed on the supply-side conveyance cylinder 31. A grain air conveying device positioned below the lower surface.   In Claim 2, the part of the intake part 15 from the supply side connection nozzle 32 provided in the said intake part 15 to the predetermined length of the circumferential direction of the intake part 15 was formed in the non-perforated plate part 37, The grain air conveyance apparatus.   4. The grain air transfer device according to claim 1, wherein the exhaust side transfer tube mounting member is provided with a pressure adjusting mechanism 45 for adjusting a suction pressure in the suction chamber.   In claim 1, claim 2, claim 3, or claim 4, the powdery substance passing separation portion 20 is provided in the funnel portion 17, and a suction chamber 21 is formed between the funnel portion 17 and the outer case 25. The exhaust side connection nozzle 28 connected to the exhaust side transport cylinder 27 of the transport cylinder 1 for sucking the suction chamber 21 into the exhaust side transport cylinder mounting member 26 provided above the intake portion 15 and having a sealed space. Grain air conveying device provided with.   In Claim 5, the support plate 65 which obstruct | occludes the lower periphery of the said intake part 15 is provided in the upper part of the said funnel part 17, the said suction chamber 21 is formed with this support plate 65 and the said outer side case 25, and a support plate 65 and a connection hose 71 for communicating the exhaust side conveying cylinder mounting member 26 are provided, and a plurality of the connection hoses 71 are provided at a predetermined interval in the circumferential direction of the intake portion 15. Conveying device. In Claim 6, the top plate 38 of the intake portion 15 has a cylindrical guide portion 67 having a predetermined diameter.
The upper fixed, lower the supply-side connection nozzle 32 and intake portion 15 kernels air conveying device is positioned below the connection portion of the guiding portion 67.   8. The grain air transport device according to claim 7, wherein the outer case 25 and the exhaust-side transport cylinder mounting member 26 are each provided with an inspection port 76, and a closing member 77 is detachably attached to each of the inspection ports 76. Grains are put into an embankment hopper 10 connected to the start end of the transport cylinder 1 that is sucked from the air intake section of the blower 2 and flows suction air inside, and the input grains are powdered by the suction air in the transport cylinder 1. The air is conveyed to the object removing device 13, and the grains are blown into the cylindrical intake portion 15 of the powdery material removing device 13 together with the conveying wind, and the inside of the intake portion 15 and the conical cylindrical funnel portion 17 below the intake portion 15. The grain is dropped while being brought into contact with or slid on the periphery, and the conveying wind is attenuated to separate the grain and the conveying wind, and the grain separated from the conveying wind is below the powdery substance removing device 13. In the method of storing in the storage tank 11 and supplying the storage tank 11 to the next process, the supply side connection nozzle 32 connected in the tangential direction of the intake section 15 blows the grain together with the conveying wind, and the intake section 15 or Opening hole 1 formed in funnel portion 17 The granulate passed by the carrier air became vortex kernels to the separation section 20 abutting or sliding contact is allowed to powdery substance passes from the outside of the suction chamber 21 of the separation unit 20 by sucking powdery substance F grains having The separated powdery substance F is separated from the grain by the conveying cylinder 1 connected to the suction chamber 21 and is separated from the grain above the central portion of the intake portion 15. Exhaust conveyance is performed by the conveyance cylinder 1 that exhausts from the powdery substance removal device 13 through the provided exhaust side connection nozzle 28, and the powdery substance F that is exhausted and conveyed is separated by the powdery substance separation device 22 in the middle of the conveyance cylinder 1. A grain air conveying method in which the powdery material F separated from the conveying air and separated by the powdery material separating device 22 is conveyed and recovered to the powdery material collecting unit 23 by the compressed air from the exhaust part of the blower 2.

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