JP2012112539A - Gas ejection treatment apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent decrease in treatment efficiency in a gas ejection treatment apparatus that ejects gas from above and below a treatment object.SOLUTION: The gas ejection treatment apparatus includes: a housing; a conveyer 20 having air permeability and conveying a treatment object W in the housing; and a plurality of upper nozzles 40a/lower nozzles 40b which are disposed in an upper chamber 30a/lower chamber 30b positioned above/below the conveyer 20, respectively, have cylindrical shapes facing downward/upward, and inject gas in the respective chambers 30a/30b. The upper nozzle 40a and the lower nozzle 40b are not aligned on the same vertical line. The upper nozzles 40a are disposed at an equal spacing on the upper chamber 30a; the lower nozzles 40b are disposed at positions corresponding to the intermediate positions of the adjoining upper nozzles 40a, at an equal spacing on the lower chamber 30b.

Description

  The present invention relates to an apparatus for performing treatments such as drying, heating, and cooling by ejecting a gas (high-temperature or normal-temperature air or the like) to an object to be processed (also called a workpiece) such as food or building materials.

Conventionally, this type of apparatus has the following structure. One example thereof is described in Patent Document 1.
The apparatus has a housing, a conveyor, an upper chamber, and a lower chamber.
The housing forms a substantially closed space.
The conveyor has air permeability and has an endless shape (forms an upper forward path portion and a lower return path portion).
The upper chamber is located above the conveyor (outward path portion) in the housing. The lower chamber is located below the conveyor (outward path portion) in the housing.
The upper chamber is provided with a number of nozzles (upper nozzles) that eject gas downward. The lower chamber is provided with a number of nozzles (lower nozzles) that similarly eject gas upward.

  Then, as the conveyor circulates, the object to be processed placed on the conveyor (outward part) moves in the housing, and the gas ejected from each upper nozzle of the upper chamber and each of the lower chambers The gas ejected from the lower nozzle is received, and processing such as drying and heating is performed.

In this type of conventional apparatus, a large number of upper nozzles in the upper chamber and lower nozzles in the lower chamber are provided at corresponding positions.
And a to-be-processed object receives the gas injected from the upper nozzle and the gas injected from a lower nozzle in the site | part corresponding to the upper side and the lower side of each.

When the object to be processed does not have air permeability, there is no problem even with the apparatus having the above-described structure.
However, in the case where the object to be processed has air permeability, a gas which is jetted downward from the upper nozzle and flows toward the object to be processed, and further passes through the object to be processed and is directed downward. From above, flows through the conveyor (having air permeability) toward the object to be processed, and further collides with the gas passing through the object to be processed and moving upward. The momentum will be offset.
As a result, the efficiency of processing on the workpiece is diminished.

JP 2000-146401 A

  It is an object of the present invention to provide a gas ejection processing apparatus that ejects gas from above and below to an object to be processed, in which the efficiency of processing on the object to be processed is not diminished.

  In order to solve this problem, the invention according to claim 1 is a gas ejection processing device that performs a process on an object by ejecting a gas, and has a housing and air permeability. A plurality of cylindrical upper nozzles that are provided in a conveyor that conveys the object to be processed and an upper chamber that is located above the conveyor, and that ejects gas inside the upper chamber in a gas ejection direction having a component directed downward. And a plurality of cylindrical lower nozzles that are provided in a lower chamber located below the conveyor and eject gas in the lower chamber in a gas ejection direction having a component directed upward. The gas ejection direction of the upper nozzle and the gas ejection direction of the lower nozzle are not collinear, and the upper nozzle is virtually extended in the gas ejection direction and the The side nozzle is intended never to to that extending virtually intersects to the gas ejection direction, a gas ejection apparatus.

  In the gas ejection processing apparatus according to the present invention, the object to be processed is conveyed through the housing by the conveyor, and is ejected from the plurality of upper nozzles in the upper chamber and from the plurality of lower nozzles in the lower chamber. The object is processed by the gas.

At that time, in the gas ejection processing device of the present invention, the gas ejection direction of the upper nozzle and the gas ejection direction of the lower nozzle are not collinear, so that the gas ejected from the upper nozzle and the lower nozzle are ejected. There is no frontal collision with gas. Note that “the gas ejection direction of the upper nozzle” means that the upper nozzle is the base point. The same applies to the lower nozzle.
In addition, since the upper nozzle virtually extended in the gas ejection direction and the lower nozzle virtually extended in the gas ejection direction do not intersect, the gas ejected from the upper nozzle and the lower nozzle The gas ejected from the side nozzle does not collide diagonally.
For this reason, the momentum of the gas ejected from the upper nozzle and the momentum of the gas ejected from the lower nozzle are not offset.
For this reason, a to-be-processed object can be processed efficiently, without the efficiency of the process with respect to a to-be-processed object being reduced.

  In addition, although the gas ejected from each nozzle basically flows along the gas ejection direction of each nozzle, a part of the gas may also flow in a direction wider than the gas ejection direction. However, this invention pays attention to the gas flowing along the gas ejection direction. The same applies to the invention according to claim 2.

  The invention according to claim 2 is a gas ejection processing device that performs processing on an object to be processed by jetting gas, and has a housing and a breather, and conveys the object to be processed in the housing. A plurality of upper nozzles which are provided in an upper chamber located above the conveyor, and which eject gas inside the upper chamber downward; and a lower chamber which is located below the conveyor, The gas ejection processing apparatus has a plurality of lower nozzles for ejecting gas inside the chamber upward, and the upper nozzle and the lower nozzle are not on the same vertical line.

  In the gas ejection processing apparatus according to the present invention, the object to be processed is conveyed through the housing by the conveyor, and is ejected from the plurality of upper nozzles in the upper chamber and from the plurality of lower nozzles in the lower chamber. The object is processed by the gas.

In that case, in the gas ejection processing apparatus of the present invention, the upper nozzle and the lower nozzle are not on the same vertical line, so the gas ejection direction of the upper nozzle and the gas ejection direction of the lower nozzle are not on the same straight line, There is no frontal collision between the gas ejected from the nozzle and the gas ejected from the lower nozzle.
Further, in the gas ejection processing device of the present invention, the gas is ejected downward from the upper nozzle (the gas ejection direction is downward), and the gas is ejected upward from the lower nozzle (the gas ejection direction is upward). Therefore, both gas ejection directions are parallel, and the gas ejected from the upper nozzle and the gas ejected from the lower nozzle do not collide diagonally.
For this reason, the momentum of the gas ejected from the upper nozzle and the momentum of the gas ejected from the lower nozzle are not offset.
For this reason, a to-be-processed object can be processed efficiently, without the efficiency of the process with respect to a to-be-processed object being reduced.

  The invention according to claim 3 is the gas ejection processing apparatus according to claim 2, wherein the plurality of upper nozzles are provided at equal intervals with respect to the upper chamber, and the plurality of lower nozzles Is a gas ejection processing device provided at a position corresponding to an intermediate position between the adjacent upper nozzles at an equal interval with respect to the lower chamber.

In the gas ejection processing apparatus according to the present invention, in addition to the functions and effects of the gas ejection processing apparatus according to the second aspect, the following functions and effects can be obtained.
That is, in the gas ejection processing apparatus of the present invention, the plurality of upper nozzles are provided at equal intervals with respect to the upper chamber, so that the object to be processed can be processed evenly from above. Similarly, since the plurality of lower nozzles are provided at equal intervals with respect to the lower chamber, the object to be processed can be processed evenly from below.

In addition, since each lower nozzle is provided at a position corresponding to an intermediate position between adjacent upper nozzles, each upper nozzle is virtually extended downward (in the gas ejection direction) and each lower nozzle. The minimum value of the interval (plurality) with the virtual extension in the upward direction (gas ejection direction) is the maximum.
Therefore, as described above, the gas ejected from each upper nozzle / lower nozzle basically flows along the gas ejection direction of each upper nozzle / lower nozzle (flows downward / upward). In some cases, a part of the gas flows in a direction wider than the gas ejection direction, but the gas flowing in the direction wider than the gas ejection direction from the upper nozzle and the gas ejection direction from the lower nozzle in this way. The ratio of collision with gas flowing in the spreading direction is the smallest.
For this reason, in the gas ejection processing device of the present invention, the gas force ejected from the upper nozzle and the gas force ejected from the lower nozzle are not offset even in this respect, and the process for the object to be processed is performed. The processing object can be processed more efficiently without reducing the efficiency of the process.

It is a longitudinal cross-sectional view of the hot-air ejection drying apparatus of one Example of this invention. It is a longitudinal cross-sectional view (a part is the end surface) at the time of cut | disconnecting by the virtual vertical surface extended in the advancing direction of a to-be-processed object. A part thereof is further virtually broken, and the broken end face is shown. It is a longitudinal cross-sectional view of the hot-air ejection drying apparatus of one Example of this invention. It is a longitudinal cross-sectional view at the time of cut | disconnecting by the virtual vertical surface extended perpendicularly | vertically with the advancing direction of a to-be-processed object. A part thereof is further virtually broken, and the broken end face is shown. It is a longitudinal cross-sectional view of the principal part of the hot-air ejection drying apparatus of one Example of this invention. It is the elements on larger scale of FIG. It is a cross-sectional view of the principal part of the hot-air jet drying apparatus of one Example of this invention.

Next, a hot air jet drying apparatus (gas jet processing apparatus) according to an embodiment of the present invention will be described with reference to the drawings.
As shown in FIGS. 1 and 2, the hot-air jet drying apparatus includes a housing 10, a conveyor 20, an upper chamber 30 a, a lower chamber 30 b, and the like.
And this hot-air ejection drying apparatus dries (processes) to-be-processed objects W, such as a foodstuff (thing before a drying process), with a hot air.

The housing 10 forms a substantially closed space.
As shown in FIG. 1, the conveyor 20 has an endless shape and extends in the length direction of the housing 10. The conveyor 20 is supported by a pair of support portions 16 located outside the housing 10. Each support portion 16 has a sprocket as a main material, and one of them is provided with a drive motor (not shown).
The conveyor 20 is formed by connecting a large number of pipes extending in the horizontal direction (width direction of the housing 10) perpendicular to the direction of travel in a travel direction (length direction of the housing 10) with a gap. For this reason, air (gas) can flow through the conveyor 20 (through).
The upper part of the endless conveyor 20 is the forward path part 21a, and the lower part is the return path part 21b.
In the drawings, the conveyor 20, the support portion 16 and the like are schematically shown in a simplified manner.

The upstream wall portion (reference numeral omitted) of the housing 10 is formed with an outward passage inlet portion 12A and a return passage outlet portion 14A, and the downstream wall portion of the housing 10 is provided with an outward passage outlet portion 12B and a return passage inlet. Part 14B is formed.
The forward path portion 21a of the conveyor 20 flows into the housing 10 through the forward path inlet portion 12A, and flows out of the housing 10 through the forward path outlet portion 12B. The return path portion 21b flows into the inside of the housing 10 through the return path inlet section 14B, and flows out of the housing 10 through the return path outlet section 14A.

In this way, as shown in FIGS. 1 and 3, the conveyor 20 circulates with the workpiece W placed on the forward path portion 21a of the conveyor 20, so that the conveyor 20 (the forward path portion 21a) causes the workpiece to be processed. W is moved.
That is, as shown in FIG. 1, the workpiece W enters the housing 10 through the forward path inlet 12A, moves in the housing 10, and exits the housing 10 through the forward path outlet 12B.

  As shown in FIGS. 1 and 2, the upper chamber 30 a and the lower chamber 30 b are disposed in the housing 10. The upper chamber 30a and the lower chamber 30b are vertically paired, and a plurality of sets are provided along the length direction of the housing 10 (advancing direction of the workpiece W).

The housing 10 is provided with a burner 50 and a duct 60 corresponding to the upper chamber 30a and the lower chamber 30b of each set. Both the opening 61 at the upstream end of the duct 60 and the burner 50 (the tip of the outlet) are located above the upper chamber 30 a in the housing 10.
As shown in FIG. 2, the duct 60 is bifurcated in the middle, and each downstream end thereof is connected to the upper chamber 30a and the lower chamber 30b.
As shown in FIGS. 1 and 2, a fan 62 is provided inside the duct 60 (for example, in the vicinity of the opening 61).
For this reason, the air heated to high temperature by the burner 50 flows into the duct 60 through the opening 61 by the fan 62, flows through the duct 60, and flows into the upper chamber 30a and the lower chamber 30b.

Each upper chamber 30 a is located above the forward path portion 21 a of the conveyor 20. Each lower chamber 30 b is located below the forward path portion 21 a of the conveyor 20 and above the return path portion 21 b of the conveyor 20.
As shown in FIGS. 1 to 3, each upper chamber 30a has a substantially rectangular parallelepiped container shape, and a large number of nozzles (upper nozzles) 40a are provided on the lower surface thereof. Each upper nozzle 40a has a cylindrical shape and extends downward (vertically downward).
Similarly, each lower chamber 30b has a substantially rectangular parallelepiped container shape, and a large number of nozzles (lower nozzles) 40b are provided on the upper surface thereof. Each lower nozzle 40b is also cylindrical and extends upward (vertically upward).

For this reason, as shown in FIG. 3, the high temperature air (hot air) in the upper chamber 30a is ejected downward (vertically downward) from the upper nozzle 40a. That is, the gas ejection direction of the upper nozzle 40a is downward (vertically downward).
Similarly, high-temperature air (hot air) in the lower chamber 30b is ejected upward (vertically upward) from the lower nozzle 40b. That is, the gas ejection direction of the lower nozzle 40b is upward (vertically upward).

As shown in FIGS. 1 to 4, in this hot air jet drying apparatus, the upper nozzle 40 a and the lower nozzle 40 b are so-called equally to the upper chamber 30 a and the lower chamber 30 b as follows. Arranged so as to have an alternate positional relationship.
For this reason, the plurality of upper nozzles 40a and the plurality of lower nozzles 40b are not on the same vertical line, and the gas ejection direction of the plurality of upper nozzles 40a and the gas ejection direction of the plurality of lower nozzles 40b are the same straight line. Not on the line.

  That is, as shown in FIG. 4, in the upper chamber 30a, the upper nozzle 40a is equal in the width direction of the upper chamber 30a at each longitudinal position spaced at equal intervals in the length direction of the upper chamber 30a. They are arranged at intervals. The upper nozzles 40a arranged at the respective positions in the length direction are successively one-fourth the length of the interval between the upper nozzles 40a in the width direction of the upper chamber 30a along the length direction of the upper chamber 30a. The phase is shifted by a certain interval. In this way, the plurality of upper nozzles 40a are provided at equal intervals with respect to the upper chamber 30a.

Similarly, in the lower chamber 30b, the plurality of lower nozzles 40b are provided at equal intervals with respect to the lower chamber 30b.
In that case, the lower nozzle 40b is arrange | positioned at equal intervals in the width direction of the lower chamber 30b in the position corresponding to each length direction position where the upper nozzle 40a is arrange | positioned in the upper chamber 30a. .
In addition, each lower nozzle 40b is provided at a position corresponding to an intermediate position between the adjacent upper nozzles 40a.

Next, the effect of this hot-air jet drying device (gas jet processing device) will be described.
As shown in FIG. 1, the to-be-processed object W which has air permeability, such as a foodstuff before the drying process, is mounted in the outward path part 21a of the conveyor 20. As shown in FIG. Then, as the conveyor 20 circulates, the workpiece W moves in the housing 10 from the forward path entrance 12A to the forward path exit 12B.
On the other hand, in the housing 10, hot air is ejected downward (vertically downward) from the upper nozzle 40a of the upper chamber 30a, and hot air is ejected upward (vertically upward) from the lower nozzle 40b of the lower chamber 30b.
For this reason, the to-be-processed object W which moves the inside of the housing 10 receives hot air from both above and below, and dries.

At that time, since the workpiece W has air permeability as described above, the hot air blown downward (vertically downward) from the upper nozzle 40a is directed toward the workpiece W as shown in FIG. Flows through the workpiece W and further downward (vertically below).
On the other hand, the hot air jetted upward (vertically upward) from the lower nozzle 40b flows toward the workpiece W through the conveyor 20 (forward path portion 21a), passes through the workpiece W, and further upwards. Head (vertically upward).

Here, as described above with reference to FIGS. 3 and 4 and the like, the plurality of upper nozzles 40a of each upper chamber 30a and the plurality of lower nozzles 40b of each lower chamber 30b are in an alternate positional relationship. That is, the plurality of upper nozzles 40a and the plurality of lower nozzles 40b are not on the same vertical line, and the gas ejection direction of the plurality of upper nozzles 40a and the gas ejection direction of the plurality of lower nozzles 40b are collinear. Not.
For this reason, the hot air ejected from the upper nozzle 40a and the hot air ejected from the lower nozzle 40b do not collide head-on.

Further, each upper nozzle 40a provided in each upper chamber 30a is directed downward (vertically downward), and each lower nozzle 40b provided in each lower chamber 30b is directed upward (vertically upward). The direction toward 40a and the direction toward each lower nozzle 40b are parallel (reverse).
That is, each upper nozzle 40a virtually extending in the gas ejection direction (downward) and each lower nozzle 40b virtually extending in the gas ejection direction do not intersect.
Therefore, hot air ejected from the upper nozzle 40a (which basically flows along the gas ejection direction of the upper nozzle 40a) and hot air ejected from the lower nozzle 40b (basically in the gas ejection direction of the lower nozzle 40b). Does not collide diagonally.

For this reason, the force of hot air ejected from the upper nozzle 40a and the force of hot air ejected from the lower nozzle 40b are not offset.
For this reason, the to-be-processed object W can be dried efficiently, without reducing the efficiency of drying (processing) with respect to the to-be-processed object W.

In addition, the plurality of upper nozzles 40a of each upper chamber 30a and the plurality of lower nozzles 40b of each lower chamber 30b are equally staggered. That is, each lower nozzle 40b is provided at a position corresponding to an intermediate position between adjacent upper nozzles 40a.
For this reason, the interval (plurality) between what each upper nozzle 40a is virtually extended downward (its gas ejection direction) and what each lower nozzle 40b is virtually extended upward (its gas ejection direction). The minimum value is the maximum value. For this reason, the following effect is also obtained.

That is, the hot air ejected from each upper nozzle 40a basically flows downward (vertically below), which is the gas ejection direction of the upper nozzle 40a, and the hot air ejected from each lower nozzle 40b is basically Specifically, it flows upward (vertically upward), which is the gas ejection direction of the lower nozzle 40b, but may also flow in directions that are wider than those directions.
However, the ratio of the hot air that is blown from the upper nozzle 40a and flows in a direction wider than the lower side (vertically downward) and the hot air that is blown from the lower nozzle 40b and flows in a direction wider than the upper side (vertically upward) collides is the smallest. .

  For this reason, in this hot air jet drying apparatus, the hot air force ejected from the upper nozzle 40a and the hot air force ejected from the lower nozzle 40b are not offset in this respect as well. The workpiece W can be dried more efficiently without reducing the efficiency of drying (processing).

  The above is merely an example of the present invention, and it is needless to say that the present invention can be implemented in various modifications based on the knowledge of those skilled in the art.

For example, the conveyor (20) is not limited to the above-described one, and a plurality of (a large number of) holes (including a net-like plate) and a plurality of cages (buckets) formed by a net (a large number) are provided in the traveling direction. ) It may be in a connected form.
In that case, each support part (16) is made into the structure where said board and bucket do not invert up and down when a conveyor (20) switches between an outward path part (21a) and a return path part (21b). Also good. In that case, the drying process may be performed when the workpiece W is positioned on the return path part (21b) of the conveyor (20).

DESCRIPTION OF SYMBOLS 10 Housing 20 Conveyor 30a Upper chamber 30b Lower chamber 40a Upper nozzle 40b Lower nozzle W Workpiece

Claims (3)

A gas ejection processing device that performs processing on an object by ejecting gas,
A housing;
A conveyor having air permeability and conveying the workpiece in the housing;
A plurality of cylindrical upper nozzles that are provided in an upper chamber located above the conveyor and that eject gas in the upper chamber in a gas ejection direction having a component directed downward;
A plurality of cylindrical lower nozzles provided in a lower chamber located below the conveyor, and jetting in the gas ejection direction having a component directed upward in the gas in the lower chamber;
The gas ejection direction of the upper nozzle and the gas ejection direction of the lower nozzle are not collinear, and the upper nozzle is virtually extended in the gas ejection direction and the lower nozzle in the gas ejection direction. The virtual extension is never intersected,
Gas ejection processing device. A gas ejection processing device that performs processing on an object by ejecting gas,
A housing;
A conveyor having air permeability and conveying the workpiece in the housing;
A plurality of upper nozzles provided in an upper chamber located above the conveyor, for jetting gas inside the upper chamber downward;
A plurality of lower nozzles which are provided in a lower chamber located below the conveyor, and which eject gas inside the lower chamber upward;
The upper nozzle and the lower nozzle are not on the same vertical line.
Gas ejection processing device. The gas ejection processing device according to claim 2,
The plurality of upper nozzles are provided at equal intervals with respect to the upper chamber,
The plurality of lower nozzles are provided at equal intervals with respect to the lower chamber at positions corresponding to intermediate positions of the adjacent upper nozzles.
Gas ejection processing device.

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