JPS597880A - Drier - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION It is a gaseous fuel such as the following conditions: the sulfur content of the combustion exhaust gas of the gaseous fuel is close to zero and there is no petroleum odor. This is a drying device which aims to save drying heat energy by supplying the combustion gas to the drying chamber. By providing a completely independent combustion device with a combustion burner and exhaust gas control, the combustion of gaseous fuel can be carried out smoothly under a constant flow rate without being affected by the pressure of the heating chamber. Even if the gas is exhausted from the gas burner during fa stop, the gas fuel will be released from the combustion chamber to the outside air through the exhaust gas pipe, and will be ignited again after preventing it from flowing into the greenhouse or drying room. When drying, make sure that no explosion occurs in the heating chamber or drying chamber, and supply an appropriate amount of high-temperature combustion exhaust gas to the drying chamber in order to save on thermal energy. To prevent ignition of the materials to be dried, prevent the substances from entering the drying chamber, and the gas mixed with an appropriate amount of combustion gas sent to the drying chamber should be thoroughly mixed with air and circulating gas before entering the drying chamber. By supplying CO and CO to locally high temperature areas in the drying room.
. Is the high concentration part of the dried proboscis in the drying room not produced? This ensures uniform drying and prevents workers working inside the dry area from oxygen deprivation and carbon monoxide poisoning.

In addition, the invention of Honsilu 2 uses a gold film as a means for measuring temperature and gas components in the drying chamber to control the gas burner and the control valve, and the drying gas that can be supplied is evenly distributed within the drying chamber. A drying device that is managed to effectively carry out the process and to supply high-temperature exhaust gas, even PM ash, to the total drying chamber, thereby saving on heat engineering costs and ensuring sanitary safety for workers. Out.

The present invention τ will be explained with reference to the drawings showing its embodiments.

In Fubamei's drying equipment, it is necessary to use a clean gaseous fuel such as LP gas or city gas that has a low sulfur content, does not have a petroleum odor, and does not have a negative impact on the temporarily dried product. Therefore, such a gas fuel nozzle 1 is used. Gaseous fuel burner 1 and heat independently of drying room 12 and heating room 4? A combustion device is provided which is constituted by a combustion chamber 3 and exhaust gas blue 2 which dissipates. A greenhouse 4 is provided so as to enclose the combustion chamber 3 of this combustion device. That is, when combustion occurs in the combustion chamber 3, the heat of the combustion is released from the combustion chamber 3 into the heating chamber 4, thereby warming the gas flowing inside the heating chamber 4. Gas intake ports 5 and 11 were installed in the heating chamber 4 (l-
J:fji. Number 1 koku 1 qi outlet 6.

6'... is provided, and a detailed 1i. Directly provide one or several fans 14, 14'...all. The position of the gas intake port 5 of the heating chamber 4 is maintained at a slightly negative pressure by these fans, and the gas supplied to the heated drying chamber 12 through the entire flow inside the 7JO greenhouse 4 is agitated by these fans. The mixed gases taken out from the heating chamber 16 are supplied to the drying chamber 12 with a uniform temperature and composition. The air supply #7 is provided outside and has eight air volume control valves, and the exhaust gas supply pipe 9 is branched from the exhaust gas pipe 2 and has a gas volume control valve 10, and the supply source is the drying chamber 12. In addition, each of the circulating gas supply pipes 11 having 13 circulating gas amount control valves is installed so that its discharge end is at the gas intake port 5 position of the corresponding (Ir+i chamber 4). Since M-J is always maintained at a slightly negative pressure by the fan 14, air easily flows from each supply pipe 7, 9, .

Exhaust gas and circulating gas flow in, the amounts of which can be adjusted directly and independently by control valves 8, 10, 13, respectively.

Inside the heating room 4, an appropriate amount of air, an appropriate amount of exhaust gas, and an appropriate amount of gas are supplied by fans 14゜14', 14''...
The gas, which has been uniformly mixed by the combustion chamber 3 and heated to a predetermined temperature by heat release in the combustion chamber 3, is heated to a uniform predetermined temperature and predetermined composition by the fans 14', 14''...
・The gas outlet pipes 6, 6', . . .
The drying gas supply 'ft15.15' is discharged from the drying chamber 12, respectively, and pneumatically blown by the drying gas supply 'ft15.15'.
One or more spout holes 16 for each feeder.
16'... into the drying chamber 12.

A part of the gas in the drying chamber 12 is supplied to the heating chamber 4 again through the circulating gas supply pipe 11 having the circulating gas amount regulating valve 13 as described above, but the other part of the gas is supplied through the exhaust air quantity regulating valve 18. The air is discharged to the outside air through an exhaust air volume 17.

The second invention related to the above basic invention is the above-mentioned drying “A”.
In the drying chamber 12, all measurement means 19 are installed to measure 4 degrees, component composition, etc., and based on the measured values, an electric signal command r is sent to the burner 1 and each control valve 8.1υ1.13.1B. There is a drying device that automatically controls the combustion amount, exhaust gas amount, air amount, circulating gas amount, exhaust air amount, etc. so that each amount is 4 times a meter.

In the drying apparatus of the present invention, a fan 14 provided in addition 11
, 14', 14"... to keep the pressure at least at the gas intake port 5 of the heating chamber 4 at a pressure lower than the atmospheric pressure at all times' (r (42,
L. As a result, it is possible to directly and accurately adjust the amount of air, the amount of exhaust gas, and the amount of stored gas 'ff: by adjusting each adjustment valve 11, 10.13. If the pressure at the gas intake port 5 is higher than atmospheric pressure, for example, to adjust the amount of exhaust gas, a damper is installed outside the branch point of the exhaust gas pipe 2, so that the exhaust gas electric sound in the exhaust gas supply pipe is indirectly suppressed. It will be adjusted to. In this case, the combustion chamber 3 also has a pressure higher than atmospheric pressure, and the combustion chamber 3 is supplied to the gaseous fuel burner 1.
The amount of air supplied tends to be smaller than the amount of gaseous fuel supplied, and as a result of insufficient air, incomplete combustion occurs, soot is generated, and a large amount of CO is produced.

In addition, in order to take in a predetermined amount of air or circulating gas through the intake port 5 whose pressure is higher than atmospheric pressure, it is necessary to provide a fan in addition to a control valve to increase the pressure, resulting in a very complicated structure.

Additionally, fans 14 and 14' are provided in the humidifying chamber 4.

14''... has a stirring function, and can completely mix gas, air, and circulating gas to a uniform composition and a constant temperature, and can be taken out and discharged from the chamber 6. In the drying chamber 12, the arrangement of the drying gas supply members 1b, 15'... and their ejection holes 16, 16', and the gas suction port of the circulating gas supply pipe 11 and the mounting 17 can be properly piped to adjust the atmosphere in the drying chamber 12 to the same temperature and gas composition as the drying chamber.Therefore, the side means 19 can be used with only one or a relatively small number of drying means 12. You can accurately know all 41 state Qi of the inner parts, and find the appropriate size IAf.
? k can be lowered. Therefore, workers working in the drying chamber 12 can safely work without suffering from oxygen deficiency or carbon monoxide poisoning. At the same time, the amount of fuel supplied to the gaseous fuel burner IK can be set to W.1, so that it is always drawn into the combustion chamber 3 and combusted with an appropriate amount of load, thereby preventing fuel waste. In addition, without releasing the entire amount of high-temperature exhaust gas of 800°C to 500°C into the atmosphere, the maximum amount of exhaust gas that does not pose the above-mentioned sanitary hazard to the workers in the drying room 1z is directly transferred to the drying room 1z. 12. Moreover, this exhaust gas was thoroughly mixed while passing through the four heating chambers. Once completely mixed, the gas mixture is not separated into the drying chamber 12. If exhaust gas is directly supplied to the drying chamber without mixing all the elements using the fan mentioned above, a high temperature area of 1 gas will be generated in the upper part of the drying chamber because 1 gas is high temperature. Even if only a small amount of exhaust gas is used, it poses a serious health hazard to workers.
Also, drying in the drying room can be done uniformly and efficiently.
I won't.

The drying equipment according to this xAme can be used for drying fish, drying seaweed, drying tobacco nests, drying mushroom cheeks for tea making, drying rice crackers, or wall covering work, etc., and is harmless and odorless. By channeling an appropriate amount of the high-temperature combustion exhaust gas into the dry chamber, a large amount of energy can be saved.

[Brief explanation of drawings]

The figure shows a drying device according to the present invention. 1 is a gaseous fuel burner 2 is an exhaust gas pipe 3 is a combustion pipe 4
is the adjustment chamber 5 is the gas intake port 6 is the gas outlet port 7 is the air supply/U 8 is the air volume adjustment valve 9fd Exhaust gas supply'
10 is the exhaust gas amount control valve 11 is the circulating gas supply pipe 1
2 is a drying chamber 13 is a circulating gas amount control valve 14 is a fan 1
5 is a drying gas supply agency 16 is a blowout hole 17 is an exhaust pipe 1
8 is an exhaust air volume control valve 19 is a side rectangular means

Claims (1)

[Claims] ■ A combustion device having a burner 1 for gaseous fuel, a combustion chamber 3 for dissipating heat, and an exhaust gas pipe 2 is provided, a heating chamber 4 is provided surrounding the combustion chamber 3 for dissipating nuclear heat, and a heating chamber 4 is provided surrounding the combustion chamber 3 for dissipating nuclear heat. A gas inlet port 5 and one or several gas outlet ports 6, 6'...r are provided in the first temperature range 4, and an air supply pipe 7 having an air flow control valve 8 is branched from the front 1 exhaust gas port 2. The exhaust gas supply pipe 9 and the exhaust gas supply pipe 9 having an exhaust gas amount adjustment valve 10 and the supply end are connected to each other in the drying chamber 12, and the circulating gas supply meter 11 having a microorganism gas adjustment valve 13 is connected to the outlet end thereof. One or more fans 14. The gas extraction pipes are also connected to one or more drying gas supply tubes from 6'... to the drying chamber 12. A drying device in which a drying chamber 12 is provided with an exhaust air volume 17 having an exhaust air volume control valve 18. 2 A combustion device having a burner 1 for gaseous fuel, a combustion chamber 3 for dissipating all heat, and an exhaust gas pipe 2 is provided, a heating chamber 4 is provided surrounding the combustion chamber 3 for dissipating all heat, and a gas intake is provided in the greenhouse 4. An air supply pipe 7 and the exhaust gas pipe 2 are provided with an inlet 5 and one or several gas outlet ports 6, 6', and an air control valve 8.
The exhaust gas supply front 9 and the supply end, which are branched from the drying chamber 12 and have 10 exhaust gas amount adjustment valves, are connected to each other in the drying chamber 12, and the circulating gas amount adjustment valve 13? ll″Ila m gas supply’1f
The heating chamber 4 is provided with one or several fans 14.
14'... are provided so that the position of the gas intake port 5 of the heating chamber 4 is always maintained at a negative pressure, and the gas outlet pipes 6, 6'
1 to several bottles of drying gas supply vinegar 15, 15' leading to the drying chamber 12, respectively. The drying chamber 12 is equipped with measuring means 19 for measuring temperature, component composition, etc., and the burner 1 and the valley control valves 8, 10, 13, and 18 are controlled by electric signals from the measuring means 19. Device.