JP4349549B2 - Dust collector for grain dryer - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a dust collector for a grain dryer, which is used in combination with a grain dryer and separates and collects fine dust in the exhaust air discharged from the exhaust port of the grain dryer or the dust outlet of the dust collector. .
[0002]
[Prior art]
In a grain dryer that blows and drys grains, the exhausted air that passes through the dried grain layer and is discharged from the exhaust vent contains a large amount of dust, such as swarf, grain husks, straw, fur, mud, and dust. It is. The grain dryer may be equipped with a dust remover that removes the dust mixed in the dried grain, but a large amount of dust is generated from the dust outlet of the dust remover due to the exhaust air. Discharged.
[0003]
Conventionally, in general farmers and small grain drying facilities, the duct connected to the exhaust port of the grain dryer is taken out outdoors, and the exhaust air containing dust is discharged directly from the exhaust port to the outside. Is the actual situation.
[0004]
[Problems to be solved by the invention]
By the way, if the wind exhausted from the exhaust port of the grain dryer is guided to the outside by a duct and discharged, it is inevitable that the surrounding environment will deteriorate due to dust. In order to meet the demand, various types of dust collectors have been developed in a wet or dry manner.
[0005]
For example, in a drying facility, a shower-type wet dust collector such as Japanese Utility Model Publication No. 63-73133 is used. In this shower-type wet dust collector, the area of the shower room is increased in order to increase dust collection efficiency. Since it needs to be large, it requires a fairly large installation space. In addition, as a dust collector compact for general farmers, a wet dust collector as disclosed in JP-A-8-303951 is also known. However, in such a small wet dust collector, an area within a small area is known. In order to increase dust collection efficiency, circulating water is sprayed from the nozzle. Since the sprayed circulating water gradually contains dust and dirt from the grain dryer, the nozzle that sprays the circulating water, that is, the dust collection efficiency may be reduced, and the submersible pump body may break down . The
[0006]
The dry cyclone type dust collector can be easily installed in general farmers and small grain drying facilities, etc., because it can be configured in a simple and relatively small size, but because the removal rate of fine dust is particularly low, It is regarded as a problem that environmental preservation in the surrounding area cannot be sufficiently achieved.
[0007]
Therefore, the present invention can be configured in a simple and compact manner even if it is wet by combining the spray dust removal chamber and the dust collection water storage chamber one above the other, and by circulating and using the water in the dust collection water storage chamber The amount of water used can be reduced, a nozzle for spraying water is not used, and a mist film is formed in the spray dust removal chamber to block the inlet of exhaust air pumped from the grain dryer. It is an object of the present invention to provide a dust collector for a grain dryer capable of greatly improving the dust removal rate.
[0008]
[Means for Solving the Problems]
In order to achieve the above object, a dust collector for a grain dryer according to claim 1 of the present invention is connected to a dust outlet of a grain dryer or a dust outlet of a dust dryer attached to the grain dryer. A dust collector that separates and collects fine dust in the exhaust air discharged from the exhaust port of the dryer or the exhaust port of the dust exhaust device, and is provided in the spray dust removal chamber provided in the upper stage and in the lower stage. It is composed of a dust collection water storage chamber, and in the upper spray dust removal chamber, a mist film generating plate is arranged facing the inlet of the exhaust air pumped from the grain dryer, and on the front side of this mist film generating plate The fountain nozzle is placed close to each other and a submersible pump is placed in the lower dust collection reservoir, and the water supply pipe of this submersible pump is a flexible pipe that is detachably connected to the base end of the fountain nozzle. to guide the exhaust air of the water pumped from the lower dust collecting reservoir chamber to the spray dust chamber by spraying the above fog film produced plate And configured to form a mist film to block the mouth, between the upper spray dust chamber and its lower dust collecting reservoir chamber Yes forms the outlets of the water supply pipe, from the proximal end of the fountain nozzle The water pipe connected to the submersible pump is removed and the water pipe connected to the submersible pump is pulled out from the outlet and the submersible pump can discharge the water and dust in the dust collection reservoir. It is what.
[0009]
The dust collector for a grain dryer according to claim 2 of the present invention is characterized in that, in the configuration of claim 1, the spray film generating plate has a spray surface of water as a gentle conical surface.
[0010]
A dust collector for a grain dryer according to a third aspect of the present invention is configured such that, in the configuration of the first or second aspect, the mist forming plate is vibrated or oscillated back and forth by the spray pressure of water. It is characterized by this.
[0011]
According to a fourth aspect of the present invention, there is provided a dust collecting apparatus for a grain dryer according to the first, second, or third aspect, wherein the atomized film generating plate rotates at a high speed.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 is a sectional view showing an embodiment of a dust collecting apparatus for drying grains according to the present invention, FIG. 2 is a sectional view showing an embodiment of draining from the dust collecting water storage chamber, and FIG. 3 is a grain drying apparatus according to the present invention. It is sectional drawing which shows the aspect which connects and uses a dust collector for the exhaust port of a grain dryer.
[0013]
4 is a cross-sectional view showing another embodiment of the grain drying dust collector according to the present invention, FIG. 5 is a cross-sectional view of the main part of the same, FIG. 6 is a cross-sectional view showing the operation of the main part of the same, FIG. 7 is a cross-sectional view showing still another embodiment of the grain drying dust collecting apparatus according to the present invention.
[0014]
In FIG. 1 and FIG. 2, 1 is a dust collector for grain drying. The grain drying dust collecting apparatus 1 includes a spray dust removing chamber 2 in an upper stage and a dust collecting water storage chamber 3 in a lower stage. In the upper spray dust removal chamber 2, there is disposed a mist film generating plate 5 for forming a mist film so as to face the inlet 4 of the exhausted air pumped from the grain dryer. A fountain nozzle 6 is placed in close proximity to the front surface of the fountain. A submersible pump 7 is disposed in the lower dust collection water storage chamber 3, and a water pipe 8 of the submersible pump 7 is connected to the fountain nozzle 6. The water supply pipe 8 is a flexible pipe, and the tip thereof is detachable from the base end of the fountain nozzle 6. Reference numerals 9 and 10 denote connection cocks. An air exhaust port 12 having a filter 11 is opened on the upper surface of the spray dust removal chamber 2. Reference numeral 13 denotes an outlet of the water pipe 8.
[0015]
As shown in FIG. 3, the dust collector 1 for grain dryer according to the present invention is used by connecting the exhaust outlet 15 of the grain dryer 14 via the duct 16 to the exhaust outlet 15 of the grain dryer 14. Reference numeral 17 is a hot air chamber, 18 is a burner, 19 is a grain drying layer, 20 is an exhaust chamber, and 21 is a suction blower.
[0016]
From the exhaust port 15 of the grain dryer 14, exhaust air is introduced into the dust collector 1 for the grain dryer from the exhaust air inlet 4 into the dust removal chamber 2 by the suction blower 21. In the chamber 2, water pumped up by the submersible pump 7 from the dust collection chamber 3 is blown to the mist film generating plate 5 disposed facing the exhaust air introduction port 4. A mist film is formed so as to block the exhaust air inlet 4. For this reason, the dust in the exhausted air to be introduced is effectively removed up to fine dust by this mist film, but even if there is dust that has passed through the mist film, it does not remain due to the mist filling the spray dust removal chamber 2. The clean exhaust air from which the dust has been removed is discharged from the exhaust air outlet 12 to the outside.
[0017]
The dust removed in the spray dust removal chamber 2 as described above is collected in the lower dust collection reservoir 3 together with the mist film and water droplets due to the mist. The water in the dust collection chamber 3 is circulated and used to form a mist film, but when the water level in the dust collection chamber 3 is lowered, it is automatically or appropriately replenished from the outside.
[0018]
When a predetermined amount of dust has accumulated in the dust collecting water storage chamber 3, or when dust is discharged or drained as necessary, the tip of the water pipe 8 at the base end of the fountain nozzle 6 is connected. As shown in FIG. 2, the water supply pipe 8 connected to the submersible pump 7 is pulled out from the outlet 13, and the water in the dust collecting water storage chamber 3 is extracted by the submersible pump 7. And dust can be discharged efficiently and easily.
[0019]
In the dust collector 1 for a grain dryer according to the present invention, as shown in FIGS. 4 to 5, the mist film generating plate 5 has a gentle conical surface as shown in FIG. Moreover, the mist film can be diffused toward the rear in the spray dust removing chamber 2, and the dust removing efficiency can be further improved by increasing the surface area of the mist film. Further, since the mist membrane moves at high speed from the front to the rear of the spray dust removal chamber 2, a wind flow from the front to the rear is formed in the spray dust removal chamber 2, and the grain dryer 14 has a grain dryer. The resistance of the wind flow generated by attaching the dust collector 1 can be relaxed.
[0020]
In addition, as shown in FIG. 7, the mist film generating plate 5 is supported by the elastic body 5b, and is configured to vibrate or swing back and forth by the spray pressure of water, thereby forming a mist film rich in change. Thus, dust removal efficiency can be further improved.
[0021]
In the illustrated embodiment, the mist film generating plate 5 is rotated at a high speed, whereby the formed mist film can be further changed, thereby improving the dust removal efficiency. It is. In addition, illustration is abbreviate | omitted about the structure.
[0022]
In the illustrated embodiment, a mode in which the dust collector 1 for a grain dryer according to the present invention is used by being connected to the air outlet 15 of the grain dryer 14 is illustrated, but the dust collector for a grain dryer according to the present invention is illustrated. 1 can be used by being connected to a dust outlet of a dust remover attached to the grain dryer 1. Moreover, in addition to the dust collector 1 for grain dryers according to the present invention, it can also be used for dust collection of other grain preparation machines.
[0023]
【The invention's effect】
According to the present invention, the spray dust removing chamber provided in the upper stage and the dust collecting water storage chamber provided in the lower stage are configured, and the upper spray dust removing chamber is provided with an inlet for exhausted air fed from the grain dryer. The mist film generation plate is arranged oppositely, and the water drawn from the lower dust collection reservoir is sprayed onto the mist film generation plate to form a mist film that blocks the exhaust air inlet in the spray dust removal chamber. Therefore, it is possible to configure the spray dust removal chamber and the dust collection water storage chamber one by one up and down to make it simple and compact even if it is wet, and use water by circulating and using the water in the dust collection water storage chamber. In addition to reducing the amount, it is possible to greatly improve the removal rate of dust, particularly fine dust.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing an embodiment of a dust drying dust collecting apparatus according to the present invention.
FIG. 2 is a cross-sectional view showing an aspect of draining from the dust collection reservoir.
FIG. 3 is a cross-sectional view showing a mode in which the grain drying dust collecting apparatus according to the present invention is used by being connected to an exhaust port of a grain dryer.
FIG. 4 is a cross-sectional view showing another embodiment of the grain drying dust collecting apparatus according to the present invention.
FIG. 5 is a sectional view of the main part of the above.
FIG. 6 is a cross-sectional view showing the operation of the main part.
FIG. 7 is a cross-sectional view showing still another embodiment of the grain drying dust collecting apparatus according to the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Dust collector for grain drying 2 Spray dust removal chamber 3 Dust collection water storage chamber 4 Exhaust air inlet 5 Atom film generating plate 5a Water spray surface 5b Elastic body 6 Fountain nozzle 7 Submersible pump 8 Water supply pipe 9, 10 Connection cock 11 Filter 12 Exhaust port 13 Drain outlet 14 Grain dryer 15 Exhaust port 16 Duct 17 Hot air chamber 18 Burner 19 Grain drying layer 20 Exhaust chamber 21 Suction blower

Claims (4)

Connect to the exhaust port of the grain dryer or the dust exhaust port of the dust dryer attached to the grain dryer to remove fine dust in the exhaust air discharged from the exhaust port of the grain dryer or the exhaust port of the dust exhauster. A dust collector that separates and collects,
It consists of a spray dust removal chamber provided in the upper stage and a dust collection water storage room provided in the lower stage, and in the upper spray dust removal chamber, a mist film is generated facing the inlet of the exhaust air pumped from the grain dryer A plate is arranged, and a fountain nozzle is placed close to the front side of this mist forming plate,
A submersible pump is installed in the lower dust collection reservoir. The submersible pump's water supply pipe is a flexible pipe that is detachably connected to the base end of the fountain nozzle and pumps up from the lower dust collection reservoir. The sprayed water is sprayed onto the mist film generating plate to form a mist film that blocks the exhaust air inlet in the spray dust removal chamber ,
A water outlet is formed between the upper spray dust removal chamber and the lower dust collection reservoir.
The tip of the water supply pipe from the base end of the fountain nozzle is removed, the water supply pipe connected to the submersible pump is drawn out from the outlet, and the water and dust in the dust collection reservoir can be discharged by the submersible pump. A dust collector for a grain dryer characterized by comprising   2. The dust collector for a grain dryer according to claim 1, wherein the spray film generating plate has a gently conical surface for spraying water.   The dust collector for a grain dryer according to claim 1 or 2, wherein the atomized film generating plate is configured to vibrate or swing back and forth by water spray pressure.   4. The dust collector for a grain dryer according to claim 1, wherein the atomized film generating plate rotates at a high speed.

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