CN201059838Y - A grain drying device - Google Patents

Abstract

A grain drying device, including a drying tower, a coal-fired hot blast stove, an air outlet, an air inlet, a fan and a clean room, which is characterized in that a clean room is set between the coal-fired hot blast stove and the air outlet, and the fan It is installed between the air outlet and the air inlet. The front end of the air outlet is connected with the drying tower through a plurality of branch channels, and communicated with each other. The hot blast stove is connected with the clean room through the air outlet on one side. A spark catcher is installed near the air outlet of the hot blast stove in the clean room. Compared with the prior art, the utility model has the biggest feature that a clean room is set at the outlet of the coal-fired hot blast stove, and the flue gas from the hot blast stove directly enters the clean room without passing through the heat exchanger. Remove the smoke and dust into the grain drying tower. In this way, not only the heat loss is small, but also the air pollution caused by soot is avoided.

Description

A grain drying device

technical field

The utility model relates to a grain processing device, in particular to a grain drying device.

Background technique

In recent years, with the rapid development of my country's agriculture, the grain output has increased year by year. If there is too much grain, it needs to be stored. Because the grain has a large water content after being crushed, it cannot be directly put into the warehouse, otherwise the grain will become moldy and must be dried to a certain extent. It can only enter the granary after the moisture content is reached. At present, most of the existing grain drying devices adopt the split type, which mainly consists of a drying tower, a coal-fired hot blast stove, a heat exchanger, a fan and a chimney. Chimneys are used for the exhaust of heat exchangers, so about 20-30% of the heat escapes from the chimneys. Not only the thermal efficiency is low, but also the smoke and dust emission is large, polluting the environment.

Contents of the invention

The purpose of the utility model is to provide a remarkable energy-saving effect and an environment-friendly grain drying device.

The technical solutions adopted are:

A grain drying device, including a drying tower, a coal-fired hot blast stove, an air outlet, an air inlet, a fan and a clean room, which is characterized in that a clean room is set between the coal-fired hot blast stove and the air outlet, and the fan It is installed between the air outlet and the air inlet. The front end of the air outlet is connected with the drying tower through a plurality of branch channels, and communicated with each other. The hot blast stove is connected with the purification room through the air outlet on one side. A spark catcher is installed near the air outlet of the hot blast stove in the clean room.

The above-mentioned spark catcher includes a bracket on which two rows of trough-shaped plates made of iron plates are fixed, and the upper and lower rows of trough-shaped plates are arranged alternately.

The above-mentioned purified hot air entering the grain drying tower from the air inlet has the same running direction as the grain flow direction.

Compared with the prior art, the utility model has the biggest feature that a clean room is set at the outlet of the coal-fired hot blast stove, and the flue gas from the hot blast stove directly enters the clean room without passing through the heat exchanger. Remove the smoke and dust into the grain drying tower. In this way, not only the heat loss is small, but also the air pollution caused by soot is avoided.

Description of drawings

Fig. 1 is a schematic structural view of the grain drying device of the present invention.

Detailed ways

A grain drying device includes: a drying tower 1 , a coal-fired hot air stove 2 , an air outlet 3 , an air inlet 4 , a fan 5 and a clean room 6 . A clean room 6 is provided between the coal-fired hot-blast stove 2 and the air outlet 3, a coal inlet 7 is provided on the furnace body of the coal-fired hot-blast stove 2, and a grate 8 is arranged on the left side of the coal-fired hot-blast stove 2. The middle part in the coal hot stove 2 is provided with a fire-retaining wall 9 and two fire-retaining walls 10 respectively. A fire-retaining wall 9 is semi-closed and made of refractory bricks, with a flue gas outlet 11 between its upper end and the furnace roof. The second fire-retaining wall 10 is a closed fire-retaining wall, which is also made of refractory bricks, and an arched flue gas outlet 12 for flue gas flow is left at the bottom. On the right side wall of the coal-fired hot blast stove 2, there is an arched flue gas outlet 17 for the flue gas to go out. The clean room 6 is arranged close to the hot blast stove 2, and a spark catcher 13 is arranged on the side close to the coal-fired hot blast stove 2. The spark catcher 13 comprises a support 18 and two rows of grooved plates 19, 20 made of iron plates welded on the support. The rear of the spark catcher 13 is a settling chamber 14. The flue gas in the coal-fired hot blast stove 2 flows out from the flue gas outlet 12 and directly enters the clean room 6, and the sparks in the smoke are caught by the spark catcher in the clean room 6. 13 collection, the side wall of the clean room is provided with a hot air outlet 15, the hot air outlet 15 is connected with one end of the air outlet 3, and communicated with each other, the other end of the air outlet 3 is connected with the fan 5, and the fan 5 is connected with the air inlet 4 are connected at one end, and the other end of the air inlet channel 4 is connected and communicated with the drying tower 1 through five branch channels 16 .

Claims (4)

1. A grain drying device, comprising a drying tower, a hot blast stove, an air outlet, an air inlet, a blower fan and a clean room, is characterized in that a clean room is arranged between the hot blast stove and the air outlet, and the blower fan is installed Between the air outlet channel and the air inlet channel, the front end of the air outlet channel is connected with the drying tower through multiple branch channels, and communicated with each other. The hot blast stove is connected with the clean room through the air outlet on one side. A spark catcher is arranged at the air outlet of the hot blast stove. 2. A kind of grain drying device according to claim 1, characterized in that the spark catcher includes a bracket, and two rows of grooved plates made of heat-resistant steel plates are fixed on the bracket, and the upper and lower two Rows of corrugated plates are arranged staggeredly. 3. A grain drying device according to claim 1, characterized in that the running direction of the hot air entering the drying tower from the air inlet is consistent with the grain flow direction. 4. A grain drying device according to claim 1, characterized in that a clean room is set between the hot blast stove and the air outlet to allow the smoke generated by coal combustion to settle into the room.

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