Device for conveying cold air waste gas from malt drying furnace system to barley drying tower system

Abstract

The utility model discloses a device for conveying cold air waste gas from a malt drying furnace system to a barley drying tower system, which comprises a first air inlet door, an external heat preservation ventilation pipe, a second air inlet door and a third air inlet door. A second air inlet door used for introducing hot waste gas of the malt drying tower system is additionally arranged in an air inlet chamber of the barley drying tower system, and an external heat preservation ventilation pipe is installed between the first air inlet door and the second air inlet door and installed on a supporting frame. And the third air inlet door for introducing outdoor normal-temperature air is additionally arranged in an air inlet chamber of the barley drying tower system. Energy of cold air waste gas of a malt drying furnace system is utilized, steam energy consumption of the barley drying tower is reduced, and cost is saved.

Description

Technical Field

[0001] This utility model relates to a device for conveying cold air exhaust gas from a malt drying oven system to a barley drying tower system. Background Technology

[0002] When barley is stored in silos, its moisture content must not exceed 12%. If it does, a barley drying tower is required. Outdoor fresh air is heated (since barley is needed for germination later, the air temperature for drying is generally below 49°C to ensure the germination viability of the barley) and then introduced into the barley drying tower to dry the barley, reducing its moisture content to below 12% before it is stored in silos.

[0003] The malt drying process involves drying the barley malt with hot air after germination to reduce its moisture content to below 5%. This is followed by roasting with hot air at approximately 85℃ to produce a unique malty aroma. After roasting, fresh outdoor air is introduced to lower the temperature of the malt material to within 8℃ of the outdoor temperature, preventing it from regaining moisture after entering the silo. The waste heat from this process is directly released into the environment at a temperature of approximately 45-52℃.

[0004] In existing technology, barley drying and malt drying are two independent systems. The barley drying tower operates independently when the barley moisture content is high; the malt drying oven generally operates year-round, producing one batch approximately every 24-40 hours, and finally blows out cold air, while the waste heat generated at 45-52℃ is not utilized. Utility Model Content

[0005] The purpose of this invention is to provide a device for supplying cold exhaust gas from a malt drying oven system to a barley drying tower system. The purpose is to supply the exhaust heat from the malt drying oven to the air intake system of the barley drying tower, thereby achieving the goal of energy saving.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A piping system for supplying cold air exhaust gas from a malt drying oven system to a barley drying tower system is characterized by: adding a first air inlet valve to the malt drying oven system for discharging hot exhaust gas to the barley drying tower system; adding a second air inlet valve to the air inlet chamber of the barley drying tower system for introducing hot exhaust gas from the malt drying tower system; installing an externally insulated ventilation pipe between the first and second air inlets valves, the externally insulated ventilation pipe being mounted on a support frame; and adding a third air inlet valve to the air inlet chamber of the barley drying tower system for introducing ambient outdoor air.

[0008] Specifically, the malt drying oven system includes a cold air damper, a heater, a drying fan, a malt drying oven, a first exhaust damper, a second exhaust damper, and a return air damper. The cold air damper, heater, and drying fan are located on the air inlet side of the malt drying oven, while the first exhaust damper, the second exhaust damper, and the return air damper are located on the exhaust side of the malt drying oven.

[0009] Specifically, the barley drying tower system includes a heater, a hot air blower, a cold air blower, and a barley drying tower. The barley drying tower is equipped with a cold air blower and a hot air blower, and the hot air blower is connected to the heater and the second and third air inlets.

[0010] Specifically, a corresponding temperature detector is added to the mixing chamber of the barley drying tower, and an automatic control system for damper adjustment is installed on the No. 1, No. 2 and No. 3 air inlets.

[0011] The beneficial effects of this utility model are: This utility model utilizes the energy of the cold air exhaust gas of the malt drying oven system, reduces the steam energy consumption of the barley drying tower, and saves costs. Attached Figure Description

[0012] To more clearly illustrate the embodiments of this utility model, the embodiments will be described below in conjunction with the accompanying drawings.

[0013] Figure 1 This is a system schematic diagram of the present invention.

[0014] Figure 2 This is a schematic diagram of the planar structure of this utility model.

[0015] Figure 3 This is a schematic diagram of the vertical planar structure of this utility model.

[0016] Figure 4 for Figure 2 Schematic diagram of the AA-direction structure.

[0017] 101: No. 1 air inlet door, 102: No. 2 air inlet door, 103: No. 3 air inlet door, 104: external insulation ventilation pipe;

[0018] 201: Cold air damper, 202: Heater A, 203: Drying fan, 200: Malt drying oven, 204: No. 1 exhaust damper, 205: No. 2 exhaust damper, 206: Return air damper; 301: Barley drying tower, 302: Heater B, 303: Hot air fan, 304: Cold air fan; Detailed Implementation

[0019] The following examples illustrate possible implementations of the present invention, but are not intended to limit the scope of protection of the present invention.

[0020] like Figures 1 to 4As shown, this utility model discloses a device for conveying cold exhaust gas from a malt drying oven system to a barley drying tower system. A first air inlet 101 is added to the malt drying oven system for discharging hot exhaust gas to the barley drying tower system. A second air inlet 102 is added to the air inlet chamber of the barley drying tower system for introducing hot exhaust gas from the malt drying tower system. An externally insulated ventilation pipe 104 is installed between the first air inlet 101 and the second air inlet 102, and this externally insulated ventilation pipe is mounted on a support frame. A third air inlet 103 is also added to the air inlet chamber of the barley drying tower system for introducing ambient outdoor air.

[0021] Specifically, the malt drying oven system includes a cold air damper 201, a heater A 202, a drying fan 203, a malt drying oven 200, a first exhaust damper 204, a second exhaust damper 205, and a return air damper 206. The cold air damper 201, heater A 202, and drying fan 203 are located on the air inlet side of the malt drying oven 200, while the first exhaust damper 204, second exhaust damper 205, and return air damper 206 are located on the exhaust side of the malt drying oven 200. The barley drying tower system includes a heater B 302, a hot air fan 303, a cold air fan 304, and a barley drying tower 301. The barley drying tower is equipped with both a cold air fan and a hot air fan. The hot air fan connects to heater B and the second and third air inlets.

[0022] When the malt drying cold air process and the barley drying process are running simultaneously:

[0023] Inside the malt drying oven system, open the cold air damper 201, close the heater A202, turn on the drying fan 203, open the first exhaust damper 204, close the second exhaust damper 205, and open the return air damper 206. The cold air will then enter the malt drying oven through the cold air damper 201, the heater A202, and the drying fan 203. After passing through the malt layer, the cold air will be heated to 45-52°C and discharged.

[0024] In the newly added damper and duct system, open No. 1 air inlet 101, No. 2 air inlet 102, and No. 3 air inlet 103; No. 2 air inlet 102 is used to input hot air at 45-52℃ from the barley drying oven, and No. 3 air inlet 103 is used to input fresh outdoor air; the temperature detection interlock after the hot air from No. 3 air inlet 103 and No. 2 air inlet 102 mixes is adjusted by adjusting the opening ratio of No. 3 air inlet 103 and No. 2 air inlet 102 to adjust the final air inlet temperature;

[0025] In the barley drying tower system, heater 302 is turned on and hot air blower 303 is turned on to deliver hot air into barley drying tower 301; the steam supply of heater 302 is interlocked with the air temperature after heater 302 to control the final air inlet temperature below 49°C.

[0026] When only the malt drying cold air process is running:

[0027] Open the cold air damper 201, turn off the heater A202, turn on the drying fan 203, open the first exhaust damper 204, open the second exhaust damper 205, close the return air damper 206, and close the first air inlet damper 101; then the cold air enters the malt drying oven through the cold air damper 201, the heater A202, and the drying fan 203. After passing through the malt layer, the cold air is heated to 45-52℃ and discharged directly outdoors through the first exhaust damper 204 and the second exhaust damper 205.

[0028] When only the barley drying process is running:

[0029] Inside the barley drying tower 301, close the No. 2 air inlet door 102 and fully open the No. 3 air inlet door 103 to introduce fresh outdoor air. Turn on the heater 302 and the hot air blower 303 to deliver hot air into the barley drying tower 301. The steam supply of the heater 302 is interlocked with the temperature sensor after the heater 302 to control the final air inlet temperature to be below 49°C.

[0030] This invention introduces the cold air exhaust gas from the malt drying oven into the barley drying tower system, solving the problem of utilizing the energy of the cold air exhaust gas from the malt drying oven and reducing the steam energy consumption of the barley drying tower.

Claims

1. A device for conveying cold exhaust gas from a malt drying oven system to a barley drying tower system, characterized in that: The system includes a No. 1 air inlet, an externally insulated ventilation pipe, a No. 2 air inlet, and a No. 3 air inlet. The No. 1 air inlet is added to the malt drying oven system for discharging hot waste gas to the barley drying tower system. A No. 2 air inlet is added to the air inlet chamber of the barley drying tower system for introducing hot waste gas from the malt drying tower system. The externally insulated ventilation pipe is installed between the No. 1 and No. 2 air inlets and is mounted on a support frame. A No. 3 air inlet is also added to the air inlet chamber of the barley drying tower system for introducing ambient outdoor air.

2. The device for conveying cold exhaust gas from a malt drying oven system to a barley drying tower system according to claim 1, characterized in that: The malt drying oven system includes a cold air damper, a heater, a drying fan, a malt drying oven, a first exhaust damper, a second exhaust damper, and a return air damper. The cold air damper, heater, and drying fan are located on the air inlet side of the malt drying oven, while the first exhaust damper, the second exhaust damper, and the return air damper are located on the air outlet side of the malt drying oven.

3. The device for conveying cold exhaust gas from a malt drying oven system to a barley drying tower system according to claim 2, characterized in that: The barley drying tower system includes a heater, a hot air blower, a cold air blower, and a barley drying tower. The barley drying tower is equipped with a cold air blower and a hot air blower. The hot air blower is connected to the heater and air inlet No. 2 and air inlet No.

3.

4. The device for conveying cold exhaust gas from a malt drying oven system to a barley drying tower system according to claim 3, characterized in that: Add a corresponding temperature detector to the mixing air chamber of the barley drying tower, and install an automatic control system for damper adjustment on the No. 1, No. 2 and No. 3 air inlets.

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