JP2004141206A - Grease collection device of smokeless roaster - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To use an adsorbent material for a long time, to equalize the suction force and to improve the operability of a grease collection device of a smokeless roaster. <P>SOLUTION: The grease collection device of the smokeless roaster has a connection box 4 communicating with a suction channel 8 on one side of an outer box 7, to which an inner box 9 is attached with the suction channel 8 with a prescribed space in-between. A ventilation duct 28 is connected under the connection box 4, and a grease adsorbent body 35, made of metal form in the shape of a cylinder whose top is closed, is mounted on a suction opening 32 of the connection box 4. The grease adsorbent body 35 is reused by detaching the grease adsorbent body 35 from the connection box 4 (a degrease box 30) and washing adsorbent materials 36 and 36a. The grease adsorbent body 35 consists of two upper and lower layers of cylindrical adsorbent materials 36 and 36a whose diameters are smaller downward. When the grease adsorbent body 35 is washed/stored, the grease adsorbent body 35 is stacked up, and a passing channel 33 is set in a position where the inner box 9 and the grease adsorbent body 35 are close to each other because the adsorbent material 36 of the lower layer has a smaller diameter, so that exhaust gas in a cooking part 3 is sucked evenly. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a roaster that heats and cooks meat, vegetables, etc., and sucks exhaust gas including smoke to make it smokeless, and more particularly to a method of collecting fats and oils with a fat and oil adsorbent provided in an exhaust passage in a roaster body. The present invention relates to an oil and fat recovery device for a smokeless roaster.
[0002]
[Prior art]
BACKGROUND ART Conventionally, as shown in FIG. 11, a smokeless roaster for eating and drinking while grilling meat by a large number of people (for example, see Patent Literature 1) has a cooking section b substantially at the center of a rectangular table a and a cooking section b of the table a. Since the cabinet e is provided around the exhaust flow path c, the purification device d, and the like arranged on the lower surface side, the size of the table a, the cabinet e, and the like is limited depending on the cooking and eating situation of the cook and eater.
Further, since a connection box i (defatting box) is provided in the cabinet e and communicated with the suction flow path h between the inner box f and the outer box g outside the cooking section b, the size of the connection box i is reduced. In addition, the exhaust duct j having a circular cross section of the exhaust passage c having the suction action requires a considerable diameter in order to secure a required suction amount.
The fat adsorbent k in communication with the exhaust duct j in the connection box i preferably has a large capacity in view of the pressure loss, and when the cooking part b is circular, the exhaust duct j and the suction hole m of the top plate l When the connection box i and the fat / oil adsorbent k are provided therebetween, it is preferable to apply a uniform suction force on the circumference of the cooking section b.
Due to the above-mentioned various restrictions, the fat / oil adsorbent k stored in the connection box i is cylindrical, and one side of the fat / oil adsorbent k must approach the inner box f which also serves as a drain pan.
[0003]
The state of suction of exhaust gas generated during cooking is as follows: the suction duct h, the suction box h between the connection box i, the inner and outer boxes f and g, and the suction action through the suction hole m of the top plate l allow the entire top plate l to be sucked. Exhaust gas sucked from the suction holes m arranged in the periphery (arrow A in the figure) descends in the suction flow path h between the outer box g and the inner box f (arrow B in the figure), and connects to the connection box i. It circulates in an arc in the horizontal direction of installation (arrow C in the figure).
The exhaust gas at the position D near the connection box i is relatively easy to pass through the surrounding space and the upper space of the fat / oil adsorbent k to the position E far away, while the suction flow path is located at the position F far from the connection box i. h Exhaust gas flowing in an arc from below in the direction of the connecting box i tends to flow to the position G where the fat adsorbent k and the inner box f are close to each other. Tended to be weak.
Therefore, a slight difference in suction force via the fat / oil adsorber k in the connection box i propagates to the lower part of the suction flow path h between the inner and outer boxes f and g, and the suction force at the position F far from the connection box i. As a result, the exhaust gas suction force through the suction holes m of the circular top plate 1 becomes uneven.
In addition, the above-mentioned defect tends to occur when the fat / oil adsorbent k is new, and after a long period of use, the above-mentioned defect tends to be eliminated, but the pressure loss tends to increase.
[0004]
Further, as the fat / oil adsorbent k installed in the exhaust passage of the roaster exhaust gas (for example, roaster interior, installed in the middle of the exhaust duct), there is an oil / fat adsorbent k that uses an adsorbent n in addition to the air purification type (for example, the above patent) Reference 1 and Patent Document 2 for the detailed structure). The structure of the fat / oil adsorbent k was such that a large number of granular inorganic (ceramic) adsorbents n were housed in a ring-shaped housing o that was entirely permeable to the outside and inside a double cylindrical body.
[0005]
With the use of the smokeless roaster, the sucked exhaust gas was purified by adsorbing the fats and oils on the adsorbent n, while the adsorbent n had a gradually reduced adsorption capacity.
Therefore, the adsorbent n was replaced after confirming the usage limit, that is, the adsorbent n was a disposable consumable.
Further, in stores where a considerable number of smokeless roasters are installed, there are few places where the management of the adsorbent n of the adsorbent n of each roaster and the replacement time are executed, and the adsorbent n which can be continuously used is not enough. It was common to exchange them all at once, and wasteful exchanges were also made.
[0006]
In addition, as a function required for a component for purifying exhaust gas, a function excellent in exchangeability and space saving in addition to a purifying function has been desired.
In the above-mentioned prior art, since the inner and outer double cylinders were separable, this point was sufficiently satisfactory.
[0007]
[Patent Document 1]
Japanese Patent Application Laid-Open No. 2000-254008 [Patent Document 2]
JP-A-11-156127
[Problems to be solved by the invention]
The present invention provides a fat and oil collecting device for a smokeless roaster, which makes it possible to use the fat and oil adsorbent for a long period of time, and to make the suction force uniform and to improve the handleability.
[0009]
[Means for Solving the Problems]
The present invention is based on the above-mentioned conventional technology, and the ceramic adsorbent is a consumable product, so replacement and maintenance costs are expensive, the exhaust gas suction function needs to be equalized, and good handling properties are demanded. In view of the problem that has been taken, the inner box is attached so as to have a predetermined interval of suction flow paths inside the outer box, and a connection box communicating with the suction flow path is provided on one side of the outer box. By connecting the exhaust duct to the lower part and mounting the substantially cylindrical oil adsorbent made of metal foam with a closed upper part at the suction opening of the connection box, the oil adsorbent is detached from the connection box (degreasing box). The adsorbent made of metal foam is washed and reused, and the fat and oil adsorbent is made up of a two-stage upper and lower cylindrical adsorbent, and the lower adsorbent is made to have a small diameter. And the lower adsorbent Set the diameter passage channel to approach point of the inner box and the oil adsorbent for a, in the manner uniformly sucking an exhaust gas of the cooking unit, to solve the above problems.
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
As shown in FIGS. 1 to 4, reference numeral 1 denotes a main body of a ductless smokeless roaster that exhausts exhaust gas from below the floor FL to the outside, and the upper portion is opened to the cooking portion 3 at a substantially central position of the table 2, and one side portion is connected. An outer box 7 having an exhaust portion 6 communicating with an inlet 5 of the box 4 is fitted and supported, and a suction passage 8 at a predetermined interval is provided between the outer box 7 and the outer box 7. The inner box 9 is attached.
[0011]
The outer box 7 and the inner box 9 are both circular in shape, and the upper outer periphery of the outer box 7 is fixed to the center of the table 2 via a flange 10.
As shown in FIGS. 2 and 3, an opening 11 is provided at the center of the bottom of the outer box 7 and the opening edge 12 of the bottom plate is bent upright. An opening 14 is provided at the center of the drain pan 13 integrally formed with the bottom plate, and the opening edge portion 15 of the bottom plate is bent in an upright state, and the bottom plate of the drain pan 13 is placed on the bottom plate of the outer box 7. The opening edge 15 of the drain pan 13 is disposed concentrically with the opening edge 12 of the outer box 7 on the outside.
[0012]
Reference numeral 16 denotes an annular top ring. The top ring 16 includes a top plate 17 that obliquely covers the upper opening between the outer box 7 and the inner box 9 (suction flow path 8), and a top plate 17. And a seating portion for the inner box 9 (flange 10) is integrally formed, and a predetermined number of intake holes 18, 18a ... communicating with the suction flow path 8 are formed through the entire circumference of the top plate portion 17 of the top ring 16. .
[0013]
As described above, the inner bottom of the inner box 9 is formed as the drain pan 13 for storing water, the burner receiver 19 is attached below the opening 9 of the outer box 7, and the burner 20 is placed on the burner receiver 19. Is placed on the bottom.
The upper part of the burner 20 protrudes above the opening edge 15 of the drain pan 13, and an igniter 22, an extinguishing sensor, and the like connected to a remote control device 21 are erected in the vicinity thereof in the vicinity of the burner 20.
[0014]
In addition, a charcoal pot 24 is disposed on a mounting portion 23 provided above the inner box 9, and a food placing tool 25 such as a wire mesh is placed above the charcoal pot 24, and the food pot 25 is placed below the charcoal pot 24. Are placed on the sana 26 placed on the surface of the table.
The heating device such as a burner and the food placing device 25 may be other than those in the embodiment.
[0015]
As shown in FIGS. 3 and 4, a connection box is attached to the upper end of an exhaust duct 28 erected from under the floor FL, and connects the suction channel 8 inside the outer box 7 to the adjustment box 29. 4 is a degreasing box 30, and the outer box 7, the degreasing box 30 and the like are arranged in a cabinet 31 (see FIG. 2).
The relationship among the outer box 7, the suction channel 8, and the degreasing box 30 will be described in detail. As shown in FIGS. In the vicinity of the connection point between the outer box 7 and the connection box 4, the suction opening 32 of the adjustment box 29 and the suction flow path 8 inside the outer box 7 slightly overlap in a plan view, and the outer shape of the connection box 4 It is larger in diameter than the suction opening 32 by the path 33.
Further, since there is a difference between the diameter of the connection box 4 and the diameter of the outer box 7, the tangential positions of the two at the positions of the inflow port 5 and the exhaust section 6 are the side walls 34 and 34a. ing.
The exhaust gas is provided inside the connection box 4 (the degreasing box 30) integrated with the outer box 7 so as to have the passage 33 between the inner wall surface of the connection box 4 and the outer wall surface of the inner box 9 and above. The inside of the side walls 34 and 34a of the connection box 4 is provided with a passage flow path 33 between the inner box 9 and both sides of the place where the oil adsorbent 35 approaches. I have.
[0016]
As shown in FIGS. 3 and 4, a substantially cylindrical oil adsorbent 35 having air permeability is placed on the suction opening 32 of the adjustment box 29, and the oil adsorbent 35 is a cylindrical adsorbent having a different diameter. The upper and lower adsorbents 36a and 36a are placed in the upper and lower stages, and the lower adsorbent 36 having a small diameter is placed in the suction opening 32 of the adjustment box 29.
The adsorbents 36 and 36a are a metal foam made of nickel or a nickel alloy which has air permeability and is chemically stable to a cleaning agent. Specifically, as shown in FIG. It has a large number of communicating pores on the front and back surfaces.
[0017]
As shown in FIGS. 7 and 8, the upper and lower two-stage adsorbents 36 and 36a are integrated, and a lower small-diameter ring-shaped adsorbent 36 is placed on a ring-shaped lower bottom plate 38, and A ring-shaped upper bottom plate 40 of the adsorbent 36 is integrally extended outwardly to provide a ring-shaped upper bottom plate 40, and a large-diameter ring-shaped adsorbent 36 a is placed on the upper bottom plate 40. In addition, a ring-shaped upper closing plate 41 is provided on the adsorbent 36a.
The lower bottom plate 38 and the upper closing plate 39, and the upper bottom plate 40 and the upper closing plate 41 integrated with the upper closing plate 39 are respectively integrated by stays 42, 42a..., 43, 43a. Are provided with a rotatable handle 44, and a cap 37 in a centrally depressed state is placed on an upper closing plate 41 above.
The periphery of the protruding cylindrical body serving as the suction opening 32 of the degreasing box 30 is formed as an oil retaining portion 45, and the lower bottom plate 38 of the adsorbent 36 is provided so that the oils and fats collected by the adsorbents 36 and 36 a flow down to the oil retaining portion 45. Are bent upward to form a weir plate 46. In the upper bottom plate 40 of the adsorbent 36a, the outer peripheral edges of the connecting reinforcing plate 47 of the stays 42, 42a. Is bent upward to form a weir plate 48 on the inner peripheral side of the adsorbent 36a, and a flow-down hole 49 is provided at an appropriate position on the upper bottom plate 40.
In addition, the outer peripheral edge of the lower bottom plate 38 is bent downward to stabilize the placement on the suction opening 32.
[0018]
As shown in FIG. 3, the adjusting box 29 is composed of a double-layered cylindrical body having an inner cylinder attached to the upper connection box 4 and an outer cylinder attached to the lower exhaust duct 28. A spring 50 is interposed between the cylinder and the lower cylinder to facilitate adjustment of the connection height of the roaster main body 1 to the exhaust duct 28.
The upper cylinder of the adjustment box 29 is provided with an air adjusting hole through which outside air can be sucked, and a fire damper 51 is provided below the adjustment box 29 connected to the exhaust duct 28.
[0019]
Next, the operation of the oil and fat collecting device of the smokeless roaster according to the present invention will be described.
As shown in FIGS. 3, 5 and 6, the exhaust gas including mist such as smoke and oil particles rising from the vicinity of the cooking utensil 25 in the roaster main body 1 due to the suction force acting on the exhaust duct 28 is subjected to a top ring. Are drawn through the suction passages 8, 18 a, and flow through the suction passage 8 to reach the connection box 4 (passage passage 33) communicating with the suction passage 8, and from the passage passage 33 outside the fat / oil adsorbent 35. It flows into the inside of the fat / oil adsorbent 35.
Then, the continuous pores of the adsorbents 36 and 36a in the fat / oil adsorbent 35 are complicatedly bent and flow, and are bent substantially downward at the outlet from the fat / oil adsorbent 35.
[0020]
FIGS. 3, 5, and 6 show the characteristic exhaust gas distribution state of the present invention. As shown by arrows A in FIG. The exhaust gas flows from the flow path 8 through the upper portion of the fat / oil adsorbent 35 to the end of the connection box 4 (a position far from the inlet 5), and as shown by an arrow B in FIG. After being sucked from the top ring 16, it descends in the suction channel 8 and flows in the circumferential direction in the circumferential direction in the direction of the connection box 4.
At the position close to the connection box 4, the inflow port 5 and the exhaust section 6 have a wide cross-sectional area, so that a part flows toward the end of the connection box 4, and as shown by an arrow C in the figure, The oil also flows through the passage 33 at a position where the fat adsorbent 35 and the inner box 9 are close to each other, and is sucked from the fat adsorbent 35 into the exhaust duct 28.
In the upper adsorbent 36a, the flow rate at the position where the fat / oil adsorbent 35 and the inner box 9 approach each other slightly decreases, but the total flow rate increases with a large diameter.
[0021]
The fats and oils collected by the adsorbents 36 and 36a of the fat and oil adsorbent 35 do not fall into the adjustment box 29 by the weir plates 46 and 48, and the fats and oils of the lower adsorbent 36 are adsorbed outward from the lower bottom plate 38 and upward. The oils and fats of the material 36a flow downward from the flow-down holes 49 of the upper bottom plate 40, and accumulate in the oil retaining portion 45.
[0022]
Next, a cleaning operation at the time of use for a predetermined time will be described.
The top ring 16 and the food placing tool 25 are pulled out upward as it is, and then the inner box 9 that also serves as the drain pan 13 is pulled out upward to clean the removed components and to clean the inner surface of the outer box 7. To clean.
At the time of maintenance of the oil adsorbent 35 disposed outside the outer box 7 and the inner box 9 and the like, the oil adsorbent 35 is slightly lifted so that the oil adsorbent 35 is detached from the protruding cylindrical body serving as the suction opening 32, and then the connection box 4 From the outer box 7 and taken out from the outer box 7 to the upper outside, and the oil adsorbent 35 is cleaned.
[0023]
As shown in FIG. 9, the fats and oils adsorbents 35 detached from the roaster main body 1 are piled up, immersed in a detergent, or stored as equipment.
In other words, the upper and lower adsorbents 36 and 36a have the outer diameter of the adsorbent 36 lower than the inner diameter of the upper adsorbent 36a smaller, so that the lower adsorbent 36 is stored in the upper adsorbent 36a during stacking. State.
[0024]
Although the outdoor exhaust system has been described as an embodiment of the present invention, the present invention can naturally be applied to a roaster in which an exhaust gas purification device is provided downstream of the exhaust duct 28 inside the roaster main body 1 and exhausts indoors.
[0025]
【The invention's effect】
In short, the present invention attaches the inner box 9 so as to have the suction passages 8 at a predetermined interval inside the outer box 7, and provides the connection box 4 communicating with the suction passage 8 on one side of the outer box 7, Since the exhaust duct 28 is connected below the connection box 4, the suction action of the exhaust duct 28 acts on the cooking unit 3 via the connection box 4 and the suction flow path 8, thereby sucking exhaust gas generated during cooking. I can do it.
In addition, since the oil adsorbent 35 made of metal foam having a substantially cylindrical shape and closed upward is placed in the suction opening 32 of the connection box 4, the oil adsorbent 35 is detached from the connection box 4 (the degreasing box 30). The adsorbents 36, 36a made of metal foam can be washed and reused. The fat / oil adsorber 35 is composed of upper and lower cylindrical adsorbents 36, 36a, and the lower adsorbent 36 has a small diameter. Thus, by stacking the oil adsorbents 35 during washing and storage, it is possible to reduce the size of the washing tank and to save space in the storage place. Further, since the lower adsorbent 36 has a small diameter, the inner box 9 has a small diameter. By setting the passage 33 at a location where the oil adsorbent 35 and the oil adsorbent 35 approach each other, the suction action to the cooking unit 3 via the top ring 16 and the like can be equalized, and the upper adsorbent 36a has a large diameter. As required It is possible to secure the amount.
[0026]
Since the upper and lower adsorbents 36 and 36a are respectively mounted on the upper and lower bottom plates 38 and 40, and the dam plates 46 and 48 are provided inside the adsorbents 36 and 36a, respectively, the adsorbents 36 and The oil and fat collected at 36a is prevented from flowing inward by the weir plates 46 and 48, is stored in the oil retaining portion 45 of the degreasing box 30, and can be prevented from falling into the adjustment box 29 and the exhaust duct 28. .
[0027]
Since the cap 37 for closing the upper opening of the fat / oil adsorbent 35 is in a depressed state, the internal flow path of the upper adsorbent 36a is directed downward, so that the external horizontal flow can be smoothly reduced to the internal downward flow. The practical effect is extremely large. For example, it is possible to adjust the difference in the cross-sectional area between the upper and lower adsorbents 36 and 36a by restricting the ventilation.
[Brief description of the drawings]
FIG. 1 is a plan view of a main part of a smokeless roaster according to the present invention.
FIG. 2 is a sectional view taken along line AA of FIG.
FIG. 3 is a sectional view of a main part of FIG. 2;
FIG. 4 is a sectional view taken along line BB of FIG. 1;
FIG. 5 is a sectional view taken along line CC of FIG. 3;
FIG. 6 is a sectional view taken along line DD of FIG. 3;
FIG. 7 is a front view of the fat / oil adsorbent.
FIG. 8 is a sectional view of FIG. 7;
FIG. 9 is a view showing a stacked state of the fat / oil adsorbent.
FIG. 10 is a schematic diagram of an adsorbent (metal foam).
FIG. 11 is a sectional view of a conventional smokeless roaster.
[Explanation of symbols]
4 Connecting Box 7 Outer Box 8 Suction Channel 9 Inner Box 28 Exhaust Duct 32 Suction Opening 35 Oil Adsorbent 36, 36a Adsorbent 37 Cap 46 Weir Plate 48 Weir Plate

Claims (3)

The inner box is attached so as to have a predetermined interval of suction channels inside the outer box, and a connection box communicating with the suction channel is provided on one side of the outer box, and an exhaust duct is connected below the connection box. At the same time, a substantially cylindrical oil adsorbent made of metal foam, which is closed upward, is placed in the suction opening of the connection box. The oil and fat collecting device of the smokeless roaster characterized by having a small diameter. 2. The oil and fat collecting device for a smokeless roaster according to claim 1, wherein the upper and lower adsorbents are placed on the upper and lower bottom plates, respectively, and dam plates are provided inside the adsorbents. 3. The oil and fat collecting device for a smokeless roaster according to claim 1, wherein the cap for closing the upper opening of the oil and fat adsorbing body is in a depressed state.

Images