CN220360028U - Grain drying equipment - Google Patents
Grain drying equipment Download PDFInfo
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- CN220360028U CN220360028U CN202321778378.5U CN202321778378U CN220360028U CN 220360028 U CN220360028 U CN 220360028U CN 202321778378 U CN202321778378 U CN 202321778378U CN 220360028 U CN220360028 U CN 220360028U
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- 238000001035 drying Methods 0.000 title claims abstract description 115
- 238000003860 storage Methods 0.000 claims abstract description 65
- 238000005496 tempering Methods 0.000 claims abstract description 24
- 238000010438 heat treatment Methods 0.000 claims description 23
- 238000004321 preservation Methods 0.000 claims description 21
- 235000013339 cereals Nutrition 0.000 description 143
- 238000007599 discharging Methods 0.000 description 11
- 238000000034 method Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 7
- 230000009172 bursting Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 235000020985 whole grains Nutrition 0.000 description 1
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Abstract
The utility model discloses grain drying equipment, which belongs to the technical field of grain drying, and comprises a drying tower body, wherein a grain storage bin is arranged in the drying tower body, a first side air duct and a second side air duct are respectively arranged at two sides of the grain storage bin, the middle part of the grain storage bin is a grain storage drying area, the grain storage drying area comprises a plurality of grain storage drying units which are sequentially arranged from top to bottom, and each grain storage drying unit is formed by staggered arrangement of a plurality of layers from top to bottom of corner boxes; in two adjacent grain storage drying units, the angle boxes of one grain storage drying unit are staggered from top to bottom to form a plurality of layers in a concurrent flow and countercurrent mode, and the angle boxes of the other grain storage drying unit are staggered from top to bottom to form a plurality of layers in a countercurrent and concurrent flow mode; according to the grain tempering device, tempering of grains in the drying equipment can be realized under the condition that tempering sections are not arranged, the structure of the equipment is simplified, and the equipment cost is reduced; the drying equipment with the same efficiency has smaller equipment capacity, less raw grain is needed when continuous operation is started, and the operation is more flexible and the efficiency is higher.
Description
Technical Field
The utility model relates to the technical field of grain drying, in particular to grain drying equipment.
Background
Before grain is stored, the grain is required to be dried and precipitation treated through grain drying equipment, in the grain drying and precipitation process, tempering is required to be carried out in the drying process in order to reduce the crack rate and the waist bursting rate, the tempering is that after the grain passes through a drying process, the temperature is kept unchanged, a certain period of time is maintained, the moisture in the grain is outwards diffused, the internal and external moisture gradients are reduced, and uneven shrinkage and uneven internal stress moisture distribution of the grain are avoided.
The prior art has all been disclosed to be used for tempering of grain through setting up special structural layer at the stoving tower direction of height, namely set up special tempering section in the stoving tower and be used for tempering of grain, although can realize the dry tempering technology of grain to a certain extent, there are following problems in the actual production:
first, the drying tower of equivalent efficiency, the more tempering section, the higher the drying tower height can be, the more grain (ration) quantity that the continuous operation start-up of drying tower needs, has improved the requirement of grain stoving operation in-process ration quantity.
Second, the increase of the tower body structure and the warehouse capacity of the drying tower inevitably increases the strength requirement and the cost of the drying tower foundation.
Thirdly, if the drying equipment with the same volume is used for guaranteeing the quality of the dried grains, the quantity of tempering sections is required to be increased, the quantity of drying sections is correspondingly reduced, the operation time of the drying tower is prolonged, and the efficiency is reduced.
Fourth, the grain discharging structure of the existing drying tower is mainly a turnover plate or a rotary plate continuous structure, grains flow unevenly in the tower body, the grain flow rate in the center part is high, and peripheral grain flow rate is low and even can be deposited. Meanwhile, the grain crushing rate is obviously increased.
In summary, it is clear that the prior art has inconvenience and defects in practical use, so that improvement is needed.
Disclosure of Invention
In order to solve the above technical problems or at least partially solve the above technical problems, the present utility model provides a grain drying apparatus, which can achieve the following objects:
1. the grain tempering process in the drying equipment can be realized without additionally arranging tempering sections, the integral structure of the drying equipment is simplified, and the equipment cost is reduced.
2. The drying equipment with the same efficiency has smaller equipment capacity, less raw grain quantity is needed when continuous operation is started, and the operation is more flexible and the efficiency is higher.
In order to solve the technical problems, the utility model adopts the following technical scheme: the grain drying equipment comprises a drying tower body, wherein a grain storage bin is arranged in the drying tower body, a first side air channel and a second side air channel are respectively arranged on two sides of the grain storage bin, the middle part of the grain storage bin is a grain storage drying area, the grain storage drying area comprises a plurality of grain storage drying units which are sequentially arranged from top to bottom, and each grain storage drying unit is formed by arranging angle boxes in a staggered manner from top to bottom to form a plurality of layers;
in two adjacent grain storage drying units, the angle boxes of one grain storage drying unit are staggered from top to bottom to form a plurality of layers in a concurrent flow and countercurrent mode, and the angle boxes of the other grain storage drying unit are staggered from top to bottom to form a plurality of layers in a countercurrent and concurrent flow mode.
Further, the adjacent layer angle boxes are respectively an air inlet angle box and an air outlet angle box; two layers of adjacent air inlet angle-shaped boxes and two layers of adjacent air outlet angle-shaped boxes are alternately formed among the grain storage drying units;
two layers of adjacent air inlet angle-shaped boxes form a relative co-heated area, and the height Wen Huansu of grains can be realized in the relative co-heated area; two layers of adjacent exhaust angle-shaped boxes form a relative heat preservation area, and heat preservation tempering of grains can be realized in the relative heat preservation area.
Furthermore, the bottom of the grain storage bin is a grain discharging port, and an intermittent grain discharging device is arranged in the grain discharging port.
Furthermore, the air inlet angle-shaped box and the air outlet angle-shaped box are box body structures with bottoms and one ends open; the openings at the bottoms of the air inlet horn-shaped box and the air outlet horn-shaped box are downward; the end opening of the air inlet angle-shaped box is communicated with the first side air channel, and the end opening of the air outlet angle-shaped box is communicated with the second side air channel.
Further, a stable heating area is arranged between the opposite co-heating area and the opposite heat preservation area, and the opposite co-heating area, the stable heating area and the opposite heat preservation area are sequentially alternated to the bottom of the grain storage bin.
Further, an air inlet channel is formed in one side, close to the first side air channel, of the drying tower body, and the bottom of the air inlet channel is communicated with the bottoms of the first side air channel and the second side air channel.
Further, a gas furnace is arranged at the bottom inlet of the first side air duct; a circulating fan is arranged at one end, close to the air inlet channel, of the bottom of the second side air channel; an exhaust outlet is arranged at the top of the second side air channel, and an exhaust fan is arranged in the exhaust outlet.
Further, two ends of the adjacent air inlet angle-shaped box and the adjacent air outlet angle-shaped box are fixed on the same side plate, and the side plate is fixed on the drying tower body.
After the technical scheme is adopted, compared with the prior art, the utility model has the following advantages:
1. according to the utility model, the air inlet angle-shaped boxes and the air outlet angle-shaped boxes in the drying equipment are arranged in a specific way and are combined with the intermittent grain unloading device, so that the process tempering of grains in the drying equipment can be realized under the condition that no tempering section is additionally arranged, the integral structure of the drying equipment is simplified, the material cost of the equipment is reduced, and the cost of the foundation of the drying equipment is reduced.
2. The drying equipment with the same efficiency has the advantages of smaller equipment capacity, less raw grain quantity required when continuous operation is started, more flexible operation and higher efficiency.
3. The utility model can realize the drying tempering requirements of different crops by controlling the grain discharge interval time, increases the applicability of the drying equipment to different crops and realizes one machine for multiple purposes.
4. In the drying process, because the intermittent grain discharging device is arranged, grains do not flow in the relative co-heating area and the relative heat preservation area in the grain discharging interval, the stress generated by the moisture gradient and the temperature gradient in the grains is small, and the grain crushing and the grain bursting generated by grain friction and impact are reduced; in addition, due to the alternate switching between grain discharge and grain non-discharge, the heating and tempering switching is realized in the downward movement process of the grains in the drying tower body, so that the reduction of the temperature gradient and the moisture gradient in the grains is more facilitated, the crack rate in the grain drying process is more effectively reduced, and the quality of the grains after drying is improved.
The utility model will now be described in detail with reference to the drawings and examples.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view of the structure of a grain bin;
fig. 3 is an enlarged view at a in fig. 2.
In the drawing the view of the figure,
1-drying tower body, 2-grain storage bin, 3-first side air channel, 4-second side air channel, 5-gas furnace, 6-air inlet channel, 7-circulating fan, 8-exhaust fan, 9-air inlet horn box, 10-exhaust horn box, 11-side plate, 12-relative heat-sharing area, 13-relative heat-preserving area and 14-intermittent grain unloading device.
Detailed Description
For a clearer understanding of technical features, objects, and effects of the present utility model, a specific embodiment of the present utility model will be described with reference to the accompanying drawings.
Examples
As shown in fig. 1-together, the utility model provides grain drying equipment, which comprises a drying tower body 1, wherein the drying tower body 1 comprises a grain storage bin 2, two sides of the grain storage bin 2 are respectively provided with a first side air channel 3 and a second side air channel 4, one side, close to the first side air channel 3, of the drying tower body 1 is provided with an air inlet channel 6, and the bottoms of the air inlet channels 6 are communicated with the bottoms of the first side air channel 3 and the second side air channel 4.
A gas furnace 5 is arranged at the bottom inlet of the first side air channel 3, and the gas furnace 5 is a linear gas furnace and is used for heating air in the first side air channel 3; a circulating fan 7 is arranged at one end, close to the air inlet channel, of the bottom of the second side air channel 4 and is used for establishing and running a hot air flow field in the drying tower body 1; an exhaust outlet is arranged at the top of the second side air duct 4, and an exhaust fan 8 is arranged in the exhaust outlet.
The top of the grain storage bin 2 is a grain inlet, the bottom of the grain storage bin is a grain discharge, the middle of the grain storage bin is a grain storage drying area, the grain storage drying area comprises a plurality of grain storage drying units which are sequentially arranged from top to bottom, each grain storage drying unit is formed by arranging angle-shaped boxes into a plurality of layers from top to bottom in a staggered manner, and the angle-shaped boxes on adjacent layers are respectively an air inlet angle-shaped box 9 and an air outlet angle-shaped box 10; two ends of the adjacent layer of air inlet angle-shaped boxes 9 and the adjacent layer of angle-shaped boxes 10 are fixed on the same side plate 11, and the side plate 11 is fixed on the drying tower body 1.
The air inlet horn-shaped box 9 and the air outlet horn-shaped box 10 are box body structures with bottoms and one ends open; the bottom openings of the air inlet horn-shaped box 9 and the air outlet horn-shaped box 10 are downward, the end opening of the air inlet horn-shaped box 9 is communicated with the first side air duct 3, and the end opening of the air outlet horn-shaped box 10 is communicated with the second side air duct 4.
In the same grain storage drying unit, the angle boxes are staggered from top to bottom to form a plurality of layers in a concurrent countercurrent or countercurrent concurrent mode; in two adjacent grain storage drying units, the angle boxes of one grain storage drying unit are staggered from top to bottom to form a plurality of layers in a concurrent flow and countercurrent mode, and the angle boxes of the other grain storage drying unit are staggered from top to bottom to form a plurality of layers in a countercurrent and concurrent flow mode; in this arrangement, two adjacent inlet corner boxes 9 and two adjacent outlet corner boxes 10 are alternately formed between the grain storage drying units, the two adjacent inlet corner boxes 9 form a relative co-hot area 12, and the grain in the relative co-hot area 12 can achieve a height Wen Huansu. Two layers of adjacent exhaust horn-shaped boxes 10 form a relative heat preservation area 13, and grains in the relative heat preservation area 13 can be preserved in a heat preservation way.
A stable heating area is arranged between the opposite co-heating area 12 and the opposite heat preservation area 13, and the opposite co-heating area 12, the stable heating area and the opposite heat preservation area 13 are sequentially alternated to the bottom of the grain storage bin 2.
An intermittent grain unloading device 14 is arranged in the grain discharging port at the bottom of the grain storage bin 2, and the intermittent grain unloading device 14 can realize the reciprocating opening and closing of the grain discharging port and realize intermittent grain discharging. When unloading grains, the intermittent grain unloading device 14 is opened quickly and completely, and grains are integrally discharged from top to bottom; the grain unloading interval time of the intermittent grain unloading device 14 can be matched according to different types of the dried grains and different moisture contents.
It should be noted that, the specific structure of the intermittent grain unloading device 14 is disclosed in the earlier patent application of this company, and is not described here again, and the patent application is cn202211094939.X, and is named as a grain unloading device and a grain unloading method of the grain drying tower.
The working process of the utility model comprises the following steps:
grain enters from a grain inlet at the top of the grain storage bin, is dried in a grain storage drying area, and is discharged from a grain outlet at the bottom. In the grain drying process, the grains are filled in the whole grain storage drying area. The first grain storage drying unit at the upper end of the grain storage drying area is characterized in that hot air enters into full contact with grains through the air inlet angle-shaped box at the lower layer from the first side air channel, is discharged from the air outlet angle-shaped box at the upper layer and enters into the second side air channel, so that moisture in the grains is taken away;
in the second grain storage drying unit, hot air enters into full contact with grains from the first side air channel through the upper layer air inlet angle-shaped box, is discharged from the lower layer air outlet angle-shaped box and enters into the second side air channel, so that moisture in the grains is taken away;
in the third grain storage drying unit, hot air enters into full contact with grains from the first side air channel through the air inlet horn-shaped box at the lower layer, is discharged from the air outlet horn-shaped box at the upper layer and enters into the second side air channel, so that moisture in grains is taken away, the grains sequentially pass through the rest grain storage drying units in the same way, a relative common heat area and a relative heat preservation area are alternately formed among the grain storage drying units, a stable heating area is arranged between the grain storage drying units, and three sections sequentially alternate to the bottom of the grain storage bin.
In the drying process, grains are sequentially and alternately subjected to a stable heating area, a relative co-heating area, a stable heating area and a relative heat preservation area from top to bottom, so that the current processes of stable heating, high Wen Huansu, stable heating, heat preservation and tempering of grains are realized.
In the drying process, because the intermittent grain discharging device is arranged, grains do not flow in the relative co-heating area and the relative heat preservation area in the grain discharging interval, the stress generated by the moisture gradient and the temperature gradient in the grains is small, and the grain crushing and the grain bursting generated by grain friction and impact are reduced; in addition, due to the alternate switching between grain discharge and grain non-discharge, the heating and tempering switching is realized in the downward movement process of the grains in the drying tower body, so that the reduction of the temperature gradient and the moisture gradient in the grains is more facilitated, the crack rate in the grain drying process is more effectively reduced, and the quality of the grains after drying is improved.
In addition, the existing drying equipment mostly adopts a high constant temperature drying technology, the temperature of the drying airflow is high, the temperature rise of the grain surface is fast, the water loss is fast, and large temperature gradient and water gradient are easy to form. Although the existing drying equipment is provided with a special tempering section, larger temperature gradient and moisture gradient still form stress in grains, so that the grains are broken, cracked, broken and the like, and grain loss is formed.
According to the utility model, the high Wen Huansu of grains and the heat preservation tempering are realized in the relative heat-sharing area and the relative heat-preservation area, the relative high-temperature area and the heat-preservation area are formed in the grain storage layer, the temperature is similar to the temperature of grains at all positions, and the temperature gradient and the moisture gradient in the grains are not additionally aggravated due to the space temperature, so that the tempering effect is better.
The foregoing is illustrative of the best mode of carrying out the utility model, and is not presented in any detail as is known to those of ordinary skill in the art. The protection scope of the utility model is defined by the claims, and any equivalent transformation based on the technical teaching of the utility model is also within the protection scope of the utility model.
Claims (8)
1. The grain drying equipment comprises a drying tower body (1), wherein a grain storage bin (2) is arranged in the drying tower body (1), and a first side air duct (3) and a second side air duct (4) are respectively arranged on two sides of the grain storage bin (2), and the grain drying equipment is characterized in that the middle part of the grain storage bin (2) is a grain storage drying area, the grain storage drying area comprises a plurality of grain storage drying units which are sequentially arranged from top to bottom, and each grain storage drying unit is formed by arranging corner boxes into a plurality of layers in a staggered manner from top to bottom;
in two adjacent grain storage drying units, the angle boxes of one grain storage drying unit are staggered from top to bottom to form a plurality of layers in a concurrent flow and countercurrent mode, and the angle boxes of the other grain storage drying unit are staggered from top to bottom to form a plurality of layers in a countercurrent and concurrent flow mode.
2. A grain drying apparatus according to claim 1, characterized in that adjacent layers of corner boxes are respectively an inlet corner box (9) and an outlet corner box (10); two layers of adjacent air inlet angle-shaped boxes (9) and two layers of adjacent air outlet angle-shaped boxes (10) are alternately formed among the grain storage drying units;
two layers of adjacent air inlet horn boxes (9) form a relative heat sharing area (12), and the height Wen Huansu of grains can be realized in the relative heat sharing area (12); two layers of adjacent exhaust angle-shaped boxes (10) form a relative heat preservation area (13), and heat preservation tempering of grains can be realized in the relative heat preservation area (13).
3. A grain drying apparatus according to claim 1, characterized in that the bottom of the grain storage bin (2) is a grain discharge opening, and an intermittent grain unloading device (14) is arranged in the grain discharge opening.
4. A grain drying apparatus according to claim 2, wherein the inlet horn (9) and the outlet horn (10) are both box body structures having an opening at the bottom and one end; the openings at the bottoms of the air inlet horn-shaped box (9) and the air outlet horn-shaped box (10) are downward; the end opening of the air inlet angle-shaped box (9) is communicated with the first side air channel (3), and the end opening of the air outlet angle-shaped box (10) is communicated with the second side air channel (4).
5. A grain drying apparatus according to claim 2, characterized in that a stationary heating zone is arranged between the opposite co-heating zone (12) and the opposite heat-preserving zone (13), and the opposite co-heating zone (12), the stationary heating zone and the opposite heat-preserving zone (13) are sequentially alternated to the bottom of the grain storage bin (2).
6. The grain drying equipment according to claim 1, wherein an air inlet channel (6) is formed in one side, close to the first side air channel (3), of the drying tower body (1), and the bottom of the air inlet channel (6) is communicated with the bottoms of the first side air channel (3) and the second side air channel (4).
7. A grain drying apparatus according to claim 6, wherein the inlet at the bottom of the first side air duct (3) is provided with a gas furnace (5); a circulating fan (7) is arranged at one end, close to the air inlet channel (6), of the bottom of the second side air channel (4); an exhaust outlet is arranged at the top of the second side air duct (4), and an exhaust fan (8) is arranged in the exhaust outlet.
8. A grain drying apparatus according to claim 2, characterized in that two ends of adjacent inlet corner-like boxes (9) and exhaust corner-like boxes (10) are fixed to the same side plate (11), and the side plate (11) is fixed to the drying tower body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321778378.5U CN220360028U (en) | 2023-07-07 | 2023-07-07 | Grain drying equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321778378.5U CN220360028U (en) | 2023-07-07 | 2023-07-07 | Grain drying equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220360028U true CN220360028U (en) | 2024-01-19 |
Family
ID=89517401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321778378.5U Active CN220360028U (en) | 2023-07-07 | 2023-07-07 | Grain drying equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220360028U (en) |
-
2023
- 2023-07-07 CN CN202321778378.5U patent/CN220360028U/en active Active
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