CN102986866A - Grain drying tower capable of reutilizing heat energy - Google Patents

Abstract

The invention discloses a grain drying tower capable of reutilizing heat energy. The grain drying tower comprises a drying tower, wherein a specially-made antirust paint is coated on the outer wall; a feeding opening is arranged at the top of the drying tower; the drying tower is divided into a plurality of drying sections from top to bottom; each drying section is internally and respectively communicated with a hot air blower; one layer of heat-preservation cotton covers a pipeline; each drying section of the drying tower has ventilation holes; one side of the drying tower is provided with an air collection box; the air collection box is communicated with a plurality of the ventilation holes in the drying tower; the air collection box is communicated with the feeding opening at the top of the drying tower through a pipeline; and the inner wall of the air collection box is provided with a heat-preservation board. The grain drying tower capable of reutilizing the heat energy is simple in structure; a plurality of the hot air blowers are arranged to feed hot air with different temperatures into the drying tower and the drying effect is good; and the surplus hot air energy can be reutilized and the heat utilization rate is improved.

Description

The grain drying tower of heat energy recycling

Technical field

The present invention relates to the upper grain drying field of agricultural, mainly is a kind of grain drying tower of heat energy recycling.

Background technology

General cereal all is to carry out drying process in drying tower, and all is to only have an air-heater to send hot blast facing in the drying tower, and a temperature, drying effect is bad all the time for hot blast temperature; Hot gas need to have air dispelling hole to distribute after blasting in addition hot blast in the drying tower, otherwise hot gas can be relatively moister in the drying tower, also is unfavorable for drying.

Summary of the invention

Technical problem to be solved by this invention provides a kind of grain drying tower of heat energy recycling, it is simple in structure, and it is provided with a plurality of air-heaters facing to the hot blast of sending into different temperatures in the drying tower, and drying effect is good, and unnecessary hot gas can recycle, and has improved heat utilization efficiency.

For solving the problems of the technologies described above, the technical solution used in the present invention is:

A kind of grain drying tower of heat energy recycling, include drying tower, the drying tower top is provided with charging aperture, it is characterized in that: be divided into from top to bottom a plurality of drying sections in the described drying tower, be connected with an air-heater respectively in each drying section, described pipeline is coated with the one layer of heat preservation cotton; Be respectively equipped with air-vent in each drying section on the described drying tower, described drying tower one side is provided with plenum chamber, and plenum chamber is connected with a plurality of air-vents on the drying tower, and described plenum chamber is communicated with by the charging aperture of pipeline with the drying tower top; The inwall of described plenum chamber is provided with warming plate.

The tapered structure in the end of described pipeline and extending in the charging aperture of dry top of tower.

Cereal enters in the drying tower from the charging aperture at drying tower top among the present invention, there are a plurality of air-heaters to carry the hot blast of different temperatures that it is carried out drying operation in different drying sections, hot gas is discharged by air-vent and is collected in the plenum chamber in the drying tower, the hot gas in the plenum chamber by pipeline facing in the dry top of tower charging aperture just in the material preheating of charging.

The present invention is coated on antirust paint on the drying tower outer wall, and its component by following weight portion is made:

Benzene emulsion 30-35

Water 10-15

Sodium Polyacrylate: 0.3-0.5

Sodium trimetaphosphate: 0.1-0.3

Antirust agent: 0.2-0.3

Alcohol ester 12 1-2

Triethanolamine 1-2

Aluminium hydroxide 5-8

Aluminium triphosphate 3-5

Lithopone 8-10

Micaceous iron oxide 8-10

Modified Nano diatomite in powder 3-5

Barium metaborate 8-10

Ludox 3-5

Sldium lauryl sulfate 2-5

Silicone defoaming agent 0.1-0.3,

The preparation method of described modified Nano diatomite in powder is:

(1), at first with diatomite in powder at 400 ℃ of sintering 45h;

(2), then add 35% hydrogen peroxide solution and soaked 2-3 hour, pull out, be washed to neutrality, the sodium radio-phosphate,P-32 solution of putting into again 2-5% soaked, at 60-80 ℃ of lower stirring reaction 3-4 hour;

(3), in soak, add 3-4% sldium lauryl sulfate, 1-2% silane coupler KH560,2-3% vinyl three ('beta '-methoxy ethyoxyl) silane, the 20-25% ferrotitanium powder that is equivalent to diatomite in powder weight, high speed dispersion 4200-4500 rev/min, 20-30 minute;

(4) oven dry is pulverized, and makes superfines;

Described antirust agent is that the component by following weight portion is prepared from: citric acid 49-51, aluminium powder 0.8-0.9, animal glue 0.3-0.5, aluminium dihydrogen tripolyphosphate 0.2-0.4, nano silicon 1-2, water is added to total amount 100, after formula material added mixing and stirring in proportion successively, filter impurity elimination through grinding, get final product.

The production method of described waterborne flame retardant anticorrosive paint is characterized in that, formula material is mixed in proportion, after the high speed dispersion, join grinding machine for grinding to particle diameter less than 30um, get product.

Using method:

1, before the use substrate surface drying be must be cleaned, dust and greasy dirt removed;

2, stir;

3, directly brushing, spraying, roller application all can;

12-14 square metres of every kg coating areas.

Advantage of the present invention is:

The present invention is simple in structure, and it is provided with a plurality of air-heaters facing to the hot blast of sending into different temperatures in the drying tower, and drying effect is good, and unnecessary hot gas can recycle, and has improved heat utilization efficiency.

Description of drawings

Fig. 1 is structural representation of the present invention.

The specific embodiment

Referring to Fig. 1, a kind of grain drying tower of heat energy recycling, include drying tower 1, drying tower 1 top is provided with charging aperture 2, be divided into from top to bottom a plurality of drying sections 3,4 in the described drying tower 1, each drying section 3,4 interiorly is connected with an air-heater 11 respectively, and described pipeline 3,4 is coated with one layer of heat preservation cotton 5; Be respectively equipped with air-vent 6,7 in each drying section 3,4 on the described drying tower, described drying tower one side is provided with plenum chamber 8, plenum chamber 8 is connected with a plurality of air-vents 6,7 on the drying tower, and described plenum chamber 8 is communicated with the charging aperture 2 at drying tower top by pipeline 9; The inwall of described plenum chamber 8 is provided with warming plate 10.

The tapered structure in the end of described pipeline 9 and extending in the charging aperture 2 of dry top of tower.

Be coated on the antirust paint on drying tower 1 outer wall, made by the component of following weight portion:

Benzene emulsion 30, water 12, Sodium Polyacrylate 0.4, sodium trimetaphosphate 0.2, antirust agent: 0.25, alcohol ester 12, triethanolamine 1.5, aluminium hydroxide 7, aluminium triphosphate 4, lithopone 9, micaceous iron oxide 9, modified Nano diatomite in powder 4, barium metaborate 9, Ludox 4, sldium lauryl sulfate 4, the TSA-30X silicone defoaming agent 0.2 that provided by Gongyi City bold and unconstrained water supply of brocade Materials Co., Ltd.

The preparation method:

1, at first prepare antirust agent: take by weighing by weight citric acid 50, aluminium powder 0.85, animal glue 0.4, aluminium dihydrogen tripolyphosphate 0.3, nano silicon 1.5, water is added to total amount 100,

The raw material that takes by weighing is joined in the mixer successively, after the mixing and stirring, is 35um through being ground to particle diameter more fully, crosses 350 mesh filter screens, and impurity elimination gets final product,

2, preparation modified Nano diatomite in powder:

(1), at first with diatomite in powder at 400 ℃ of sintering 45h;

(2), then add 35% hydrogen peroxide solution and soaked 2-3 hour, pull out, be washed to neutrality, the sodium radio-phosphate,P-32 solution of putting into again 2-5% soaked, at 60-80 ℃ of lower stirring reaction 3-4 hour;

(3), in soak, add 3-4% sldium lauryl sulfate, 1-2% silane coupler KH560,2-3% vinyl three ('beta '-methoxy ethyoxyl) silane, the 20-25% ferrotitanium powder that is equivalent to diatomite in powder weight, high speed dispersion 4200-4500 rev/min, 20-30 minute;

(4) oven dry is pulverized, and makes superfines;

3, preparation waterborne flame retardant anticorrosive paint: with above-mentioned formula material mix and blend in proportion, formula material is mixed in proportion, after the high speed dispersion, join grinding machine for grinding to particle diameter less than 30um, the waterborne flame retardant antirust paint gets product.

The Performance Detection of the waterborne flame retardant anticorrosive paint that present embodiment is made, result such as following table 1:

Remarks: (1) above data are under standard environment, and namely temperature is 23 ± 2 ℃, gained under relative humidity (50 ± 5) the % condition.

Fire retardancy test

The waterborne flame retardant anticorrosive paint of taking cladding process that present embodiment is made, repeatedly be painted on steel plate one side of 100mm * 100mm * 2mm, drying at room temperature 8 days adopts alcohol blast burner that coating sample is carried out the fire resistance test, and samples vertical is installed on the homemade combustion testing equipment, coat side down, steel plate is carried on the back fiery face thermocouple and data collecting instrument is housed, and guarantees flame flame envelope contact coating, begins timing during flame contact coating, 3 models of average test are averaged, and obtain table 2.

Table 2

As can be seen from Table 2, this paint fire resistance is good, has obvious fire resistance.

Claims (4)

1. the grain drying tower of heat energy recycling, include drying tower, the drying tower top is provided with charging aperture, it is characterized in that: be divided into from top to bottom a plurality of drying sections in the described drying tower, be connected with an air-heater respectively in each drying section, described pipeline is coated with the one layer of heat preservation cotton; Be respectively equipped with air-vent in each drying section on the described drying tower, described drying tower one side is provided with plenum chamber, and plenum chamber is connected with a plurality of air-vents on the drying tower, and described plenum chamber is communicated with by the charging aperture of pipeline with the drying tower top; The inwall of described plenum chamber is provided with warming plate.

2. the recycling grain drying tower of a kind of heat energy according to claim 1 is characterized in that: the tapered structure in the end of described pipeline and extending in the charging aperture of dry top of tower.

3. the antirust paint on the grain drying tower outer wall that is coated on heat energy recycling, made by the component of following weight portion:

Benzene emulsion 30-35

Water 10-15

Sodium Polyacrylate: 0.3-0.5

Sodium trimetaphosphate: 0.1-0.3

Antirust agent: 0.2-0.3

Alcohol ester 12 1-2

Triethanolamine 1-2

Aluminium hydroxide 5-8

Aluminium triphosphate 3-5

Lithopone 8-10

Micaceous iron oxide 8-10

Modified Nano diatomite in powder 3-5

Barium metaborate 8-10

Ludox 3-5

Sldium lauryl sulfate 2-5

Silicone defoaming agent 0.1-0.3,

The preparation method of described modified Nano diatomite in powder is:

(1), at first with diatomite in powder at 400 ℃ of sintering 45h;

(2), then add 35% hydrogen peroxide solution and soaked 2-3 hour, pull out, be washed to neutrality, the sodium radio-phosphate,P-32 solution of putting into again 2-5% soaked, at 60-80 ℃ of lower stirring reaction 3-4 hour;

(3), in soak, add 3-4% sldium lauryl sulfate, 1-2% silane coupler KH560,2-3% vinyl three ('beta '-methoxy ethyoxyl) silane, the 20-25% ferrotitanium powder that is equivalent to diatomite in powder weight, high speed dispersion 4200-4500 rev/min, 20-30 minute;

(4) oven dry is pulverized, and makes superfines;

Described antirust agent is that the component by following weight portion is prepared from: citric acid 49-51, aluminium powder 0.8-0.9, animal glue 0.3-0.5, aluminium dihydrogen tripolyphosphate 0.2-0.4, nano silicon 1-2, water is added to total amount 100, after formula material added mixing and stirring in proportion successively, filter impurity elimination through grinding, get final product.

4. the production method of antirust paint according to claim 3 is characterized in that, formula material is mixed in proportion, after the high speed dispersion, join grinding machine for grinding to particle diameter less than 30um, get product.

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