JPH034200Y2 - - Google Patents

Description

[Detailed description of the invention] (1) Purpose of the invention [Field of industrial application] This invention relates to an improvement of a drying device for drying tableware, kitchen utensils, etc. with hot air.

[Prior Art] Conventional drying equipment is of the type that irradiates drying with infrared lamps arranged above and below the conveyor eye as shown in Fig. 5, and of the type that irradiates drying with infrared lamps arranged above and below the conveyor eye, as shown in Fig. 6 and Fig. 7. A fan for the upper and lower blowers is provided, and a heater for the upper and lower blowers is connected to the duct for blowing hot air from the top and bottom of the conveyor. There are various hot air drying types, and types that have an external heat source and circulate through a duct using a blower (not shown).However, with infrared drying, the air is difficult to move, making it difficult to dry, and the irradiation distance can be shortened. As a result, plastic tableware may become deformed due to overheating.

In addition, the method using a duct causes a large amount of heat loss, and since the heat source is far away from the material to be dried, the heat loss is even greater, making it inefficient and uneconomical.

[Problems to be solved by the invention] In view of the above-mentioned drawbacks of the conventional method, the present invention aims to bring the heat source close to the material to be dried to an extent that does not adversely affect it, and to blow hot air to stir the hot air inside the drying chamber for circulation use. The purpose of this invention is to provide an effective and suitable drying device for tableware, kitchen utensils, etc. that dramatically increases thermal efficiency and drying efficiency. (2) Structure of the invention [Means for solving the problem] Tableware of the present invention A drying device for kitchen utensils, etc. has at least one thermal box body with a built-in heat source and a hot air blowing nozzle facing a conveyor that runs through the drying chamber, with the conveyor sandwiched therein. A circulation fan motor is disposed on one side and blows the hot air from the hot air blowing nozzle toward the conveyor into the drying chamber, sucks in the stagnant hot air, and returns it to the heating box to force the hot air inside the drying chamber. By refluxing, the hot air evenly contacts the tableware, kitchen utensils, etc. placed on the conveyor, speeding up drying and increasing thermal efficiency and drying efficiency.

[Example] A first example of the present invention will be described with reference to FIGS. 1 and 2. The drying device A of the present invention has a feed roller conveyor 5 that extends over the machine casing 1 from the entrance 3 of the drying chamber 2 to the outlet 4. Eight groups of top heating boxes each containing six groups of type sheath heaters and each having a hot air blowing nozzle 7 directed downward to the roller conveyor 5 are arranged, and an electric sheath heater is installed below the feed roller conveyor 5 in the drying chamber 2. 11 groups of lower heating boxes each having a built-in 9 groups of heaters and each having a hot air blowing nozzle 10 directed upward with respect to the roller conveyor 5 are arranged in a staggered manner with 8 groups of upper heating boxes; The fan 1 of the circulation fan motor 14 is installed at the end of the suction duct 13 with the suction port 12 open and facing the lower side of the feed roller conveyor 5 near the inlet 3 of the
5 is attached, and the starting end is attached to the fan 15 of the circulation fan motor 14.
The terminal ends of the heat boxes 6 and 17 are connected to the upper and lower heat box bodies 8 and 11 groups, respectively, in a freely communicable manner.

In the figure, 18 is a conveyor motor, 19 is a power light,
20 is a control panel, 21 is an operating light, 22 is a temperature controller, 23 is an operating switch, 24 is a drain blower,
25 is an exterior plate, 26 is a caster, and 27 is a drain nozzle.

[Function 1] Since the drying device A of the present invention is configured as described above, if the power lamp 19 is turned on and the operation switch 23 is turned on and the operation lamp 21 is also turned on, the electric sheathed heaters 6 and 9 are energized. At the same time, the conveyor motor 18, drain blower 24, and circulation fan motor 14 are started, and at the same time, the temperature controller 22 controls the amount of heat generated by the electric sheathed heaters 6 and 9 groups.

First, when washing dishes, etc. are placed on the starting end of the feeding roller conveyor 5, they pass directly under the draining nozzle 27, so that the attached water droplets are blown away by the pressure air jetted from the draining nozzle 27, and then from the inlet 3 to the drying chamber 2.
When entering the chamber, it gradually passes between the upper and lower heating boxes 8 and 11 groups, and is blown with hot air from the blowing nozzles 7 and 10 groups to proceed with hot air drying. By the time you leave, it is completely dry. Here, the hot air blown out from the group of blow-off nozzles 7 and 10 and remaining in the drying chamber 2 is sucked in from the suction port 12, passes through the suction duct 13, reaches the circulation fan 15, and is again transferred to the upper and lower branch return ducts 16 and 17. After that, it is fed into the upper and lower heating boxes 8 and 11.

Therefore, the hot air in the drying chamber 2 circulates without being stagnated, so temperature unevenness is less likely to occur in the drying chamber 2, especially around the feed roller conveyor 5, and dishes etc. are constantly exposed to the hot air and are dried quickly.

[Embodiment 2] A second embodiment of the present invention will be described with reference to FIGS. 3 and 4. The drying apparatus B of the present invention has a net conveyor 2 such that the ascending line 28a extends over the machine casing 29, passes through the inlet 31 of the drying chamber 30, and exits to the outlet 32.
8 is stretched endlessly, while the upper row 28 in the drying chamber 30
A pair of front and rear upper heating boxes 35 and 36 each containing 33 groups of steam heat exchangers and 34 groups of hot air blowing nozzles facing downward relative to the upper row 28a are arranged at a predetermined intermediate distance above a, and the drying A steam heat exchanger 37 is installed below the upper row 28a in the chamber 30.
Built-in group and 38 groups of hot air blowing nozzles ascending 2
A pair of front and rear lower heating boxes 39, 40 each facing upward with respect to 8a are connected to upper heating boxes 35, 36 and the upper row 2
Fans 45 of a pair of front and rear circulation fan motors 43, 44 are arranged at both horizontal branch ends of a suction duct 42 which has a suction port 41 opened at the center of the bottom of the drying chamber 30, and is arranged so as to face each other with the air filters 8a sandwiched therein.
46 and the relevant front and back circulation fan motor 4.
The branch terminal ends of the front and rear upper and lower branch return ducts 47 and 48 whose starting ends are attached to the fans 45 and 46 of No. 3 and 44, respectively, are connected to the front and lower heat box bodies 35 and 3 corresponding to each other.
9 and the rear upper and lower heating boxes 36, 40 in a freely communicable manner.

In the figure, 49 is an operating light, 50 is a power light, 51 is a temperature controller, 52 and 53 are circulation fan motor switches, 54 is a conveyor motor switch, 55 is a drain blower switch, 56 is a conveyor motor,
57 is a heater switch, 58 is a draining ring blower, 59 is an exhaust pipe, 60 is an exterior plate, 61 is a draining nozzle, and 62 is a leg.

[Function 2] Since the drying device B of the present invention is configured as described above, the power light 50 is turned on, the conveyor motor switch 54, the drain blower switch 55, the circulation fan motor switches 52 and 53, and the heater switch 57 are turned on. When the operating light 49 is turned on, steam starts flowing through the heat exchangers 33 and 37 groups in parallel with starting the conveyor motor 56, draining ring blower 58, and circulation fan motors 43 and 44, and the temperature controller Steam heat exchanger 33, 3 at 51
Control the amount of heat generated in Group 7.

First, wash tableware, etc., go up the net conveyor 28 28
If it is placed on the starting end of a, it will pass directly under the draining nozzle 61, so the attached water droplets will be blown off by the pressure air ejected from the draining nozzle 61. Then, when it enters the drying chamber 30 from the inlet 31, the front upper and lower heating boxes 35, 3
9, the blowing nozzles 34, 38
Hot air is blown from the group to proceed with hot air drying, and then in the second half, when passing between the upper and lower heating boxes 36 and 40, finishing hot air drying is performed by being blown by hot air from the blowing nozzles 34 and 38 groups. , it is completely dry when exiting through the exit 32.

The hot air blown out from the blow-off nozzles 34 and 38 groups and stagnant in the drying chamber 30 is sucked in from the suction port 41 at the center of the bottom of the drying chamber 30, passes through the suction duct 42, reaches the front and rear fans 45 and 46, and is then sucked in again. It is fed through the front and rear return ducts 47 and 48 into the corresponding front and rear upper and lower heating boxes 35, 36, 39, and 40, respectively. A portion of the vaporized moisture flows into the upper exhaust pipe 59.
Exhausted by.

Therefore, as in the first embodiment, the hot air in the drying chamber 30 circulates without being stagnated, so temperature unevenness is less likely to occur in the drying chamber 30, especially around the ascending section 28a of the net conveyor 28, and dishes etc. are constantly exposed to the hot air. Dries quickly.

(3) Effects of the idea Thus, the main idea is that the thermal boxes 8, 11, 35, 3
Electric sheathed heater 6, 9 into 6, 39, 40
Or, since the steam heat exchangers 33 and 37 are built-in, it is possible to get as close as possible to the dishes, etc., and the heat loss is much lower than that of conventional types, and the heat efficiency and drying efficiency are high, so the amount of heat generated by the heat source can be reduced. Therefore, the heat source itself can be made compact and have a small heat capacity, so the equipment itself can be made smaller, and it is economical both in initial cost and running cost, and it can dry quickly and in large quantities, giving good results to other front and rear lines. It has excellent effects.

In addition, in the embodiment of this proposal, the thermal boxes 8, 11, 3
5, 36, 39, and 40 are arranged on both the upper and lower sides of the upper row 28a of the conveyors 5 and 28. The number of boxes and the number of blowing nozzles are arbitrary.

[Brief explanation of drawings]

Figure 1 is a side view showing the first embodiment of the present invention;
The figure is a front view of the same, Figure 3 is a partially broken side view showing the second embodiment of the present invention, Figure 4 is a front view of the same, and Figures 5 to 7 show a conventional drying device. . A, B...Drying device, 2,30...Drying room,
3, 31... Inlet, 4, 32... Outlet, 5... Feeding roller conveyor, 6... Electric sheathed heater, 7, 10, 34, 38... Hot air blowing nozzle, 8, 11, 35, 36, 39,40...Heat box body, 12,41...Suction port, 13,42...Suction duct, 14,43,44...Circulation fan motor, 15,45,46...Fan, 16,17,
47, 48...Upper and lower branch return duct.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. A thermal box with a built-in heat source and with a hot air blowing nozzle facing a conveyor that runs through a drying chamber, with the conveyor sandwiched therein, and arranged on both sides or one side of the top and bottom, and A drying device for tableware, kitchen utensils, etc., which is provided with a circulation fan motor that sucks hot air injected from the hot air blowing nozzle and feeds it again into the heating box, and forcibly recirculates the hot air in the drying chamber. 2. The drying device for tableware, kitchen utensils, etc. according to claim 1, wherein the heat source is an electric sheathed heater or a steam heat exchanger. 3. The conveyor is a net conveyor or a feed roller conveyor.
A drying device for tableware, kitchen utensils, etc. as described in item 1 or 2.