CN212274558U - Negative pressure type grain drying tower - Google Patents
Negative pressure type grain drying tower Download PDFInfo
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- CN212274558U CN212274558U CN201922250729.5U CN201922250729U CN212274558U CN 212274558 U CN212274558 U CN 212274558U CN 201922250729 U CN201922250729 U CN 201922250729U CN 212274558 U CN212274558 U CN 212274558U
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- negative pressure
- main body
- drying
- pressure chamber
- chamber
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Abstract
The utility model relates to the technical field of grain drying equipment, in particular to a negative pressure type grain drying tower, which comprises a vertical cylindrical drying chamber main body, wherein a negative pressure chamber is coaxially arranged at the center of the drying chamber main body, the bottom of the drying chamber main body is a chamber bottom designed with a V-shaped or arc-shaped pan bottom, a tapered boss is arranged at the chamber bottom, a gap is left between the outer wall and the bottom of the tapered boss and the inner wall of the drying chamber main body, the bottom of the negative pressure chamber is fixedly connected with the top of the tapered boss, the top is communicated with a negative pressure fan, the negative pressure chamber and the side wall of the drying chamber main body are enclosed by sieve sheets, a multi-stage hot air chamber is arranged at the outer side of the drying chamber main body, the bottom of the hot air chamber is spaced from the top of the chamber bottom of the drying chamber main body, and an electric heater electrically connected with a temperature controller is arranged in, can form the assembly line work of feeding, drying, cooling, ejection of compact, and the drying process volume is big.
Description
Technical Field
The utility model relates to a grain drying equipment technical field, concretely relates to negative pressure formula cereal drying tower.
Background
In order to facilitate the storage of grains, a drying tower is generally used for heating grains containing a certain amount of water, so as to quickly reduce the moisture of the grains and achieve the aim of drying and refreshing, a boiler is generally adopted in the prior art for supplying heat, hot air is pressed into a grain pile, the grains are heated and dried by penetrating through the grain pile, and then air with moisture is discharged, so that the moisture in the grains is taken away to achieve the drying effect, the general air supply can be divided into two air supply modes of positive pressure air blowing and negative pressure air draft, if the boiler is adopted as a heat source, the positive pressure air blowing has high manufacturing cost, large energy consumption and pollution, in the hot air conveying process, the energy loss is large, the negative pressure air draft mode has a small flow cross section of general air, the grain drying treatment capacity is small, the heating and drying are not uniform, the required time is long, the grains generally need to stay in a tower body for, and the grains can not be cooled in time, so that hot air is stored when the grains are exported, and the drying effect is influenced.
Disclosure of Invention
To above problem, the utility model aims at providing a simple structure, it is little to consume energy, and is pollution-free, can adjust hot air temperature as required, and the grain handling capacity is big, and drying efficiency is high, and can realize the feeding of grain drying process, dry, the negative pressure formula cereal drying tower of the pipelining of cooling, the ejection of compact.
The purpose of the utility model is realized through the following technical scheme: the negative pressure type grain drying tower comprises a vertical cylindrical drying bin main body, wherein a vertical cylindrical negative pressure chamber which is coaxial with the drying bin main body is arranged at the center of the drying bin main body, the bottom of the drying bin main body is a bin bottom designed by a V-shaped or arc-shaped pan bottom, a blanking port is arranged at the bin bottom, a tapered boss is arranged at the center of the bin bottom, a blanking gap is reserved between the outer wall and the bottom of the tapered boss and the inner wall of the drying bin main body, the bottom of the negative pressure chamber is fixedly connected with the top of the tapered boss, the side walls of the negative pressure chamber and the drying bin main body are enclosed by sieve sheets, an air suction pipeline is arranged at the top of the negative pressure chamber, the air suction pipeline extends upwards out of the top of the drying bin main body and is communicated with an air suction port of a negative pressure fan, one section without sieve holes is reserved on the side wall of the negative pressure chamber from the top, and a, the blanking positions of the feeding holes are uniformly distributed along the outer circumference of the negative pressure chamber, and the feeding holes are communicated with a discharging hole of the elevator;
the outside of dry storehouse main part be provided with the hot-blast room of the coaxial design of dry storehouse main part, hot-blast room is vertical tube-shape, hot-blast room bottom is apart from leave natural wind circulation clearance between the top at dry storehouse main part V-arrangement or arc pot storehouse bottom, the sieve piece sieve mesh of dry storehouse main part lateral wall corresponding to natural wind circulation clearance position communicates with each other with outside natural wind, hot-blast room top-down divide into multistage, multistage all install the electric heater in the hot-blast room, the electric heater all is connected with the temperature controller electricity, hot-blast outdoor side is provided with insulation construction, dry storehouse main part bottom is provided with vertical landing leg.
Further, the drying bin main body and the negative pressure chamber are both vertical cylindrical, so that grains can be uniformly heated conveniently, and the hot air chamber is square cylindrical and is convenient for installation of a heat insulation structure.
Furthermore, the blanking position of the feed inlet is uniformly distributed along the circumferential direction of the outer side of the negative pressure chamber, the feed inlet is positioned above the top of the negative pressure chamber, and the top of the negative pressure chamber is in a conical shape.
Further, the blanking position of feed inlet is followed the outside circumference equipartition of negative pressure chamber, the feed inlet is for following a plurality of blanking holes of the outside circumference equipartition of negative pressure chamber.
Further, negative pressure chamber bottom is equipped with row's cinder notch, taper boss top and the through-hole of mutual intercommunication is all seted up to negative pressure chamber bottom, the through-hole diameter with negative pressure chamber's barrel diameter is the same, install the V-arrangement funnel in the negative pressure chamber bottom, stretch out through the connecting pipe in the funnel bottom the dry storehouse main part, because the sieve mesh of negative pressure chamber sieve piece is less than grain granule, but some tiny dirt sediment and broken grain dregs can leak into the sieve mesh and discharge from row's cinder notch.
Furthermore, the center of the bin bottom is provided with a blanking port, the center of the blanking port is vertically provided with a screw rod, the screw rod is connected with a conical or spindle-shaped sleeve in a threaded manner, the conical or spindle-shaped sleeve is screwed, so that the blanking section area of the blanking port can be adjusted, the blanking speed can be adjusted as required, and the aim of accurately controlling the drying time is fulfilled.
Furthermore, the top of the screw rod is fixedly connected to the conical boss, and the bottom of the screw rod extends out of the blanking port.
Furthermore, the cone-shaped boss is fixedly connected with the bin bottom through a support rod or a rib plate.
Furthermore, the bottom of the conical boss is positioned at the top of the V-shaped or arc-shaped pot bin bottom of the drying bin main body.
Furthermore, a natural air circulation gap is reserved between the bottom of the hot air chamber and the top of the V-shaped or arc-shaped pot bin bottom of the drying bin main body, the bottom of the hot air chamber is obliquely arranged, and a slag discharge port is arranged at the lowest position of the bottom of the hot air chamber.
Furthermore, a supporting structure is arranged between the bottom of the hot air chamber and the bottom of the drying bin main body.
Further, all install the electric heater in multistage hot-blast indoor, the connecting circuit of electric heater is parallel connection circuit, the electric heater all is connected with temperature controller electricity.
Further, the adjacent multi-stage hot air chambers are communicated with each other.
Further, the length of the section without the sieve holes is equal to the height of the conical boss and is not less than 1 m.
When the utility model is used, grain with certain humidity enters the drying chamber main body from the feed inlet, the heat supply temperature of the electric heater is adjusted to the required temperature through the temperature controller, the negative pressure fan is started, the top of the negative pressure chamber is provided with the air suction pipeline, the negative pressure fan sucks air through the air suction pipeline to form negative pressure in the negative pressure chamber, thereby the hot air generated by the electric heater of the hot air chamber flows towards the direction of the negative pressure chamber to form a hot air circulation channel, because the side wall of the negative pressure chamber and the drying chamber main body is enclosed by the sieve sheet, the heating area of the electric heater is larger, the hot air circulation heating area is large, the drying speed is fast, the drying is uniform, one section of the negative pressure chamber side wall is left from the top without a sieve pore section, the hot air is prevented from being directly drawn from the top of the negative pressure chamber, and the top hot air chamber flows downwards, the drying time is prolonged, the drying efficiency is improved, because the grain at the outer side is close to the hot air chamber, the drying speed is high at the inner side, the conical boss is arranged at the center position of the bin bottom, a blanking gap is formed between the outer wall and the bottom of the conical boss and the inner wall of the drying bin main body, the blanking speed of the grain at the outer side is higher than that at the inner side while the blanking is smooth, the grain is further ensured to be uniformly dried, the natural air circulation gap is reserved between the bottom of the hot air chamber and the top of the V-shaped or arc-shaped bin bottom of the drying bin main body, the sieve sheet sieve holes on the side wall of the drying bin main body are communicated with the natural air at the outer side at the position corresponding to the natural air circulation gap, and the cold air chamber is formed at the position of the natural air circulation gap, therefore, the natural air with lower temperature enters the drying bin main body from the sieve, the utility model discloses in, the negative pressure chamber with the lateral wall of dry storehouse main part encloses by the sieve piece, the sieve mesh of sieve piece is less than grain granule, and usable row's cinder notch will some leak into tiny dirt sediment and broken grain dregs in hot-blast room or the negative pressure chamber from the sieve mesh and discharge, the utility model discloses can be according to drying temperature needs nimble control at different levels the temperature of hot-blast room and open or close.
Has the advantages that: simple structure can adjust the temperature of hot-blast room as required, can form the streamlined operation of feeding, drying, cooling, the ejection of compact, and drying process volume is big, and the direct heat supply of electric heater reduces the heat energy loss that heat supply circulating line caused, and heat utilization rate is high, and is dry even.
Drawings
The specific structure of the application is given by the following figures and examples:
FIG. 1: the structure of embodiment 1 of the utility model is schematically shown;
FIG. 2: the position of the blanking port in embodiment 2 of the utility model is schematically shown;
FIG. 3: the structure of embodiment 3 of the utility model is schematically shown;
FIG. 4: the embodiment of the utility model provides a blanking mouth position schematic diagram in 4.
In the figure: 1. the drying bin comprises a drying bin main body, 2. a negative pressure fan, 3. a negative pressure chamber, 4. a sieve sheet, 5. a lifter, 6. a hot air chamber, 7. a natural air circulation gap, 8. a temperature controller, 9. a heat preservation structure, 11. a bin bottom, 12. a blanking port, 13. a conical boss, 14. a feeding port, 15. a vertical supporting leg, 16. a rib plate, 17. a supporting structure, 31. an air suction pipeline, 32. no sieve hole section, 33. a slag discharge port, 34. a funnel, 61. an electric heater, 121. a screw rod, 122. a conical sleeve, 141. a feeding hole.
Detailed Description
The following is a detailed description of the present invention for further explanation. The patent protection scope of the present invention is not limited to the above description, and all the equivalent structures or equivalent processes that are used in the specification and the attached drawings are directly or indirectly applied to other related technical fields.
In the present invention, for convenience of description, the description of the relative position relationship of the components is described according to the layout of the drawings in the specification, such as: the positional relationship of up, down, left, right, etc. is determined in accordance with the layout direction in the drawings of the specification.
Embodiment 1, refer to fig. 1, negative pressure formula cereal drying tower, including vertical tube-shape drying storehouse main part 1, negative-pressure air fan 2, drying storehouse main part 1 central point puts and is provided with the negative-pressure chamber 3 of the vertical tube-shape of drying storehouse main part 1 coaxial setting, the bottom of drying storehouse main part 1 is the bottom of the storehouse 11 of V-arrangement or arc bottom of a boiler design, the bottom of the storehouse 11 is equipped with blanking mouth 12, 11 central point puts at the bottom of the storehouse is provided with taper boss 13, taper boss 13 outer wall and bottom and leave the unloading clearance between the drying storehouse main part 1 inner wall, negative-pressure chamber 3 bottom with taper boss 13 top fixed connection, negative-pressure chamber 3 with the lateral wall sieve piece 4 of drying storehouse main part 1 encloses, negative-pressure chamber 3 top is equipped with air suction pipeline 31, air suction pipeline 31 upwards stretches out drying storehouse main part 1 top, air suction pipeline 31 with negative-pressure air fan 2 inlet scoop is linked together, a section of section without sieve pore sections 32 is reserved on the side wall of the negative pressure chamber 3 from the top, the top of the drying bin main body 1 is provided with feed inlets 14, the blanking positions of the feed inlets 14 are uniformly distributed along the outer circumference of the negative pressure chamber 3, and the feed inlets 14 are communicated with the discharge hole of the elevator 5;
the hot air chamber 6 is coaxially designed with the drying chamber main body 1, the hot air chamber 6 is in a vertical cylindrical shape, a natural air circulation gap 7 is reserved between the bottom of the hot air chamber 6 and the top of the drying chamber main body 1V-shaped or arc-shaped boiler chamber bottom, a sieve sheet sieve mesh on the side wall of the drying chamber main body 1 is communicated with outside natural air at a position corresponding to the natural air circulation gap 7, the hot air chamber 6 is divided into multiple stages from top to bottom, electric heaters 61 are all installed in the multiple stages of hot air chambers 6, the electric heaters 61 are all electrically connected with a temperature controller 8, an insulation structure 9 is arranged on the outer side of the hot air chamber 6, and vertical support legs 15 are arranged at the bottom of the drying chamber main body 1; the drying bin main body 1 and the negative pressure chamber 3 are both vertical cylindrical, so that grains can be uniformly heated conveniently, the hot air chamber 6 is square cylindrical, so that a heat insulation structure 9 can be conveniently installed, blanking positions of the feed ports 14 are uniformly distributed along the outer circumference of the negative pressure chamber 3, the feed ports 14 are positioned above the top of the negative pressure chamber 3, the top of the negative pressure chamber 3 is conical, and the conical boss 13 is fixedly connected with the bin bottom 11 through a rib plate 16; the bottom of the conical boss 13 is positioned at the top of the V-shaped or arc-shaped boiler chamber bottom 11 of the drying chamber main body 1.
A supporting structure 17 is arranged between the bottom of the hot air chamber 6 and the bottom of the drying bin main body 1.
All install electric heater 61 in the multistage hot-blast room 6, the connecting circuit of electric heater 61 is parallel connection circuit, electric heater 61 is by connecting the circuit connection power supply, electric heater 61 all is connected with temperature controller 8 electricity, can be according to drying temperature needs nimble control at every stage the temperature of hot-blast room 6 and open or close, adjacent multistage hot-blast room 6 communicates each other, the length of not establishing the sieve hole section with the height of taper boss 13 equals, and is not less than 1 m.
When the utility model is used, grain with certain humidity enters the drying chamber main body 1 from the feed inlet 14, the heating temperature of the electric heater 61 is adjusted to the required temperature through the temperature controller 8, the negative pressure fan 2 is started, the top of the negative pressure chamber 3 is provided with the air suction pipeline 311, the negative pressure fan 2 sucks air through the air suction pipeline 31 to form negative pressure in the negative pressure chamber 3, thereby hot air generated by the electric heater 61 of the multi-stage hot air chamber 6 flows towards the negative pressure chamber 3 to form a hot air circulation channel, because the negative pressure chamber 3 and the side wall of the drying chamber main body 1 are enclosed by the sieve sheet 4, the heating area of the electric heater 61 is larger, the hot air circulation heating area is large, the drying speed is high, the drying is uniform, one section without sieve pore section is left on the side wall of the negative pressure chamber 3 from the top, the hot air is prevented from being directly drawn out from the top of the negative pressure chamber 3, the hot air at the top flows downwards, the drying time is prolonged, the drying efficiency is improved, because the grain at the outer side is close to the hot air chamber 6, the drying speed is high at the inner side, the center of the bin bottom 11 is provided with a conical boss 14, a blanking gap is formed between the outer wall and the bottom of the conical boss 13 and the inner wall of the drying bin main body 1, so that the blanking is smooth, the blanking speed of grains at the outer side is higher than that at the inner side, the uniform drying of the grains is further ensured, the natural wind circulation gap is left between the bottom of the hot air chamber and the top of the V-shaped or arc-shaped pan bin bottom of the drying bin main body, the sieve sheet sieve holes on the side wall of the drying bin main body 11 are communicated with the outside natural wind at the position corresponding to the natural wind circulation gap 7, and a cold air chamber is formed at the position of the natural air circulation gap 7, so that natural air with lower temperature enters the drying bin main body 1 from the sieve holes under the action of the negative pressure fan 2, and grains falling from the upper side and with higher temperature are cooled.
Embodiment 4, referring to fig. 4, as a further optimized design of embodiment 1, a slag discharge port 33 is arranged at the bottom of the negative pressure chamber 3, through holes communicated with each other are formed at the top of the tapered boss 13 and the bottom of the negative pressure chamber 3, the diameter of each through hole is the same as that of a cylinder of the negative pressure chamber, a V-shaped funnel 34 is installed in the bottom of the negative pressure chamber 3, the bottom of the funnel 34 extends out of the drying chamber main body 1 through a connecting pipe, a natural air circulation gap 7 is reserved between the bottom of the hot air chamber 6 and the top of the V-shaped or arc-shaped pot chamber bottom of the drying chamber main body 1, the bottom of the hot air chamber 6 is obliquely arranged, and the lowest position of the bottom of the hot air chamber 6 is; the side walls of the negative pressure chamber 3 and the drying bin main body 1 are all enclosed by sieve sheets 4, sieve holes of the sieve sheets 4 are smaller than grain particles, and some fine dust slag and broken grain slag leaked into the hot air chamber 6 or the negative pressure chamber 3 from the sieve holes can be discharged by utilizing the slag discharge port 33.
The foregoing description is by way of example only and is not intended as limiting the embodiments of the present application. All obvious variations and modifications of the present invention are within the scope of the present invention.
Claims (10)
1. A negative pressure type grain drying tower is characterized by comprising a vertical cylindrical drying bin main body and a negative pressure fan, wherein a vertical cylindrical negative pressure chamber which is coaxial with the drying bin main body is arranged at the center of the drying bin main body, the bottom of the drying bin main body is designed into a V shape or an arc-shaped pan bottom, a blanking port is arranged at the bin bottom, a conical boss is arranged at the center of the bin bottom, blanking gaps are reserved between the outer wall and the bottom of the conical boss and the inner wall of the drying bin main body, the bottom of the negative pressure chamber is fixedly connected with the top of the conical boss, the side walls of the negative pressure chamber and the drying bin main body are enclosed by sieve sheets, an air suction pipeline is arranged at the top of the negative pressure chamber, the air suction pipeline upwards extends out of the top of the drying bin main body, the air suction pipeline is communicated with an air suction port of the negative pressure fan, and a section without sieve mesh is reserved on the side wall of the, the top of the drying bin main body is provided with feed inlets, the blanking positions of the feed inlets are uniformly distributed along the outer circumference of the negative pressure chamber, and the feed inlets are communicated with a discharge hole of a lifter;
the outside of dry storehouse main part be provided with the hot-blast room of the coaxial design of dry storehouse main part, hot-blast room is vertical tube-shape, hot-blast room bottom is apart from leave natural wind circulation clearance between the top at dry storehouse main part V-arrangement or arc pot bottom of the storehouse, the sieve piece sieve mesh of dry storehouse main part lateral wall corresponding to natural wind circulation clearance position communicates with each other with outside natural wind, hot-blast room top-down divide into multistage, multistage all install the electric heater in the hot-blast room, the electric heater all is connected with the temperature controller electricity.
2. The negative pressure type grain drying tower of claim 1, wherein the drying bin main body and the negative pressure chamber are both vertical cylindrical, so that grains can be uniformly heated, and the hot air chamber is square cylindrical; the hot-blast outdoor side is provided with insulation construction, drying storehouse main part bottom is provided with vertical landing leg.
3. The negative pressure grain drying tower of claim 1 or 2, wherein the feed inlet is located at a position above the top of the negative pressure chamber, and the top of the negative pressure chamber is conical.
4. The negative pressure type grain drying tower of claim 1 or 2, wherein the feeding hole is a plurality of blanking holes uniformly distributed along the outer circumference of the negative pressure chamber.
5. The negative pressure type grain drying tower of claim 1 or 2, wherein a slag discharge port is arranged at the bottom of the negative pressure chamber, through holes which are communicated with each other are formed in the top of the conical boss and the bottom of the negative pressure chamber, the diameter of each through hole is the same as that of the barrel of the negative pressure chamber, a V-shaped funnel is installed in the bottom of the negative pressure chamber, and the bottom of the funnel extends out of the drying bin main body through a connecting pipe.
6. The negative pressure type grain drying tower as claimed in claim 1 or 2, wherein a blanking port is arranged in the center of the bottom of the bin, a screw rod is vertically arranged in the center of the blanking port, and a conical or spindle-shaped sleeve is in threaded connection with the screw rod.
7. The negative pressure type grain drying tower of claim 6, wherein the top of the screw rod is fixedly connected to the tapered boss, and the bottom of the screw rod extends out of the blanking port.
8. The negative pressure type grain drying tower of claim 1 or 2, wherein the conical boss is fixedly connected with the bin bottom through a support rod or a rib plate.
9. The negative pressure grain drying tower of claim 8, wherein the bottom of the tapered boss is located at the top of the V-shaped or arc-shaped bottom of the drying bin body.
10. The negative pressure type grain drying tower of claim 1, wherein the bottom of the hot air chamber is arranged obliquely, and a slag discharge port is arranged at the lowest position of the bottom of the hot air chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922250729.5U CN212274558U (en) | 2019-12-16 | 2019-12-16 | Negative pressure type grain drying tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922250729.5U CN212274558U (en) | 2019-12-16 | 2019-12-16 | Negative pressure type grain drying tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212274558U true CN212274558U (en) | 2021-01-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922250729.5U Expired - Fee Related CN212274558U (en) | 2019-12-16 | 2019-12-16 | Negative pressure type grain drying tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212274558U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114877660A (en) * | 2022-05-25 | 2022-08-09 | 张伟 | Grain air drying and dewatering device and grain air drying and dewatering method thereof |
-
2019
- 2019-12-16 CN CN201922250729.5U patent/CN212274558U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114877660A (en) * | 2022-05-25 | 2022-08-09 | 张伟 | Grain air drying and dewatering device and grain air drying and dewatering method thereof |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210101 Termination date: 20211216 |