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Environment-friendly grain drying system

A kind of grain drying and environmental protection technology, applied in the direction of saving seeds through drying, etc., can solve the problems affecting the flow rate of hot air, large space and equipment, exhaust gas resistance, etc.

Inactive Publication Date: 2016-10-26
WUHU CHANGQI FURNACE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This exhaust gas treatment method not only requires a large space and equipment, but also the effect of exhaust gas treatment is not very ideal. On the one hand, it is difficult to completely clear the dust particles; on the other hand, the excessively long dust settlement pipe will cause resistance to the exhaust gas. , which affects the flow rate of hot air, which in turn affects the drying effect of the grain

Method used

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Examples

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preparation example Construction

[0031] In the above embodiment, the purifying agent can be a commercially available product in this field, or can be self-configured. In order to improve the purification ability, preferably, the composition for purifying tail gas based on silica gel modification is obtained by self-configuring. (i.e. cleaning agent), that is, the present invention provides a kind of preparation method based on silica gel modified composition for purifying tail gas, the preparation method comprising:

[0032] 1) In the presence of protective gas, the bentonite is calcined to obtain bentonite powder;

[0033] 2) placing activated carbon powder, wheat bran powder, fly ash and bentonite powder in an acid solution for activation treatment to obtain an activation mixture;

[0034] 3) MDI (4,4,-diphenylmethane diisocyanate), TDI (toluene diisocyanate), polyether polyol, silica gel, potassium titanium oxalate and the activated mixture are contacted and reacted in the presence of ultrasonic waves to o...

Embodiment 1

[0052] 1) In the presence of protective gas (nitrogen), the bentonite was calcined at 430° C. for 5 hours to obtain bentonite powder (particle size below 10 μm);

[0053] 2) Mix activated carbon powder (below 10 μm in particle size), wheat bran powder (below 10 μm in particle size), fly ash (below 10 μm in particle size), bentonite powder and acid solution (pH 4) according to 100:24:15:42 : mixed at a weight ratio of 400, and activated at 48°C for 1.2h to obtain an activated mixture;

[0054] 3) Mix MDI, TDI, polyether polyol (brand L61), silica gel, potassium titanium oxalate and the activation mixture according to the weight ratio of 100:20:120:28:0.9:58 in the presence of ultrasonic waves with a frequency of 25MHz and 75 The contact reaction was carried out at ℃ for 8 hours to obtain foamed resin;

[0055] 4) Pulverize the foaming resin to obtain foaming resin powder (below 10 microns), then mix anionic surfactant (sodium lauryl sulfate), water and foaming resin powder in ...

Embodiment 2

[0057] 1) In the presence of protective gas (neon gas), calcining bentonite at 420°C for 4 hours to obtain bentonite powder (particle size below 10 μm);

[0058] 2) Mix activated carbon powder (below 10 μm in particle size), wheat bran powder (below 10 μm in particle size), fly ash (below 10 μm in particle size), bentonite powder and acid solution (pH 3.5) according to 100:20:12:35 : mixed at a weight ratio of 300, and activated at 45°C for 1 hour to obtain an activated mixture;

[0059] 3) Mix MDI, TDI, polyether polyol (brand L64), silica gel, potassium titanium oxalate and activation mixture according to the weight ratio of 100:15:110:22:0.5:45 in the presence of ultrasonic waves with a frequency of 20MHz and 60 The contact reaction was carried out at ℃ for 6h to obtain foamed resin;

[0060] 4) Pulverize the foaming resin to obtain foaming resin powder (below 10 microns), then mix anionic surfactant (sodium lauryl sulfate), water and foaming resin powder in a weight ratio...

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Abstract

The invention discloses an environment-friendly grain drying system. The environment-friendly grain drying system includes a main body of a grain dryer and a tail gas treatment device. The tail gas treatment device includes: a shell, and the shell and the main body are connected through a vent; The inside of the casing is provided with a baffle to face the vent, and the top of the baffle is provided with a dust collection plate; the top of the casing is provided with an exhaust device; wherein, the baffle includes a plurality of V-shaped units, and the plurality of V-shaped units are arranged along the Continuous extension in the straight line direction. The environmentally friendly grain drying system can effectively purify the exhaust gas of the grain dryer.

Description

technical field [0001] The invention relates to a tail gas treatment device, in particular to an environment-friendly grain drying system. Background technique [0002] Grain dryer is an assembly of a dryer, which is a general term for various equipment of a grain dryer. According to the relative movement direction of the grain and the airflow, the dryer can be divided into cross-flow, mixed-flow, forward-flow, counter-current and forward-counter-current, mixed-counter-current, forward-mixed-flow and other types. The working principle of the grain dryer is: first, the air is heated into hot air by the heating device, and then the hot air is passed into the grain to heat the grain. [0003] After the grain heating is completed, the exhaust gas after the hot air cooling contains a large amount of dust particles and the exhaust gas produced by the grain respiration. At present, the treatment method of the tail gas of the grain dryer is: discharge the tail gas into a long pipe...

Claims

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Application Information

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IPC IPC(8): A23B9/08
CPCA23B9/08
Inventor 萧鲲
Owner WUHU CHANGQI FURNACE
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