CN211983573U - Tower type grain dryer - Google Patents

Tower type grain dryer Download PDF

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Publication number
CN211983573U
CN211983573U CN202020431294.4U CN202020431294U CN211983573U CN 211983573 U CN211983573 U CN 211983573U CN 202020431294 U CN202020431294 U CN 202020431294U CN 211983573 U CN211983573 U CN 211983573U
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China
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tail gas
side wall
tower body
horn
grain
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Expired - Fee Related
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CN202020431294.4U
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Chinese (zh)
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郭立春
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Individual
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Individual
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Priority to CN202020431294.4U priority Critical patent/CN211983573U/en
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Publication of CN211983573U publication Critical patent/CN211983573U/en
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Abstract

A tower-type grain drier is composed of tower body, multiple tubular steam radiators and tail gas dehumidifying unit, which are serially connected, and features that said radiators have square radiating tubes between two opposite side walls, the sealing heads are respectively arranged at external side of said side walls, the tail gas dehumidifying unit has an angular box between two opposite side walls, a sealing head is arranged at back end of said angular box, a tail gas dehumidifying barrel with external outlet is connected to back end of said sealing head, a filter bag is connected to external outlet of tail gas barrel, and a draught fan is connected between sealing head and tail gas dehumidifying barrel. The utility model uses steam as heating medium, so that the energy consumption is low; in addition, negative pressure is formed in the tower body, wet tail gas generated by drying of the granular raw grains is discharged by the negative pressure, the discharged wet tail gas is discharged by the filter bag, and dust and impurities in the wet tail gas cannot be discharged, so that the environment cannot be polluted.

Description

Tower type grain dryer
Technical Field
The utility model relates to a tower grain drier, especially a tower grain drier's heating device, hydrofuge tail gas device and cooling device.
Background
The tower type grain dryer is used for reducing the moisture of granular raw grains such as corns with larger water content to safe moisture so as to be convenient for storing and transporting the granular raw grains such as corns.
The tower type grain drier has vertical square tower, the tower body of the vertical square tower has four side walls of front, back, left and right, the upper end of the tower body has a grain inlet, the lower end of the tower body has a grain outlet, the lower part of the grain inlet in the tower body has a grain storage section, the upper part of the grain outlet has a cooling device, a heating device and a moisture exhaust tail gas device are arranged between the grain storage section and the cooling device, and the moisture exhaust tail gas device and the cooling device have a flat-row angular box which is uniformly distributed and connected between the opposite side walls.
The heating medium of the existing tower type grain dryer is hot air, the tower type grain dryer is matched with a hot air furnace for use, and the hot air furnace is used for heating air into hot air.
When the wet tail gas generator is used, granular raw grains enter the tower body from a grain inlet of the tower body, fall in the tower body due to gravity and are discharged from a grain outlet, hot air is blown into the tower body by the air blower and contacts with the falling raw grains to transfer heat to the granular raw grains, and moisture in the granular raw grains is evaporated to form wet tail gas to be discharged.
The heating device, the wet tail gas exhaust device and the cooling device of the tower type grain dryer are actually devices for allowing hot air to enter the tower body and wet tail gas to be exhausted from the tower body.
In the prior art, a heating device of a tower type grain dryer is provided with a horn-shaped box type drying section and a funnel plate type drying section, a moisture exhaust tail gas device and a cooling device are horn-shaped box type exhaust sections, and the horn-shaped box type exhaust sections are provided with horn-shaped boxes connected between opposite side walls.
Because the heat capacity of the air is small and the film coefficient of the heat transfer of the dividing wall is small, the power and the matching power of the hot blast stove are very large, and the energy consumption of the tower type grain dryer is high; in addition, wet tail gas generated by drying is directly discharged by using hot air in the tower body under positive pressure, and the wet tail gas contains dust and impurities, so that the direct discharge not only increases energy consumption, but also causes pollution to the environment.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the above-mentioned not enough, provide a tower grain drier that the energy consumption is lower, can not cause the pollution to the environment.
The utility model is realized by the following method.
The tower type grain dryer is provided with a vertical square tower, a tower body of the vertical square tower is provided with a front side wall, a rear side wall, a left side wall and a right side wall, a grain inlet is arranged at the upper end of the tower body, a grain outlet is arranged at the lower end of the tower body, a grain storage section is arranged below the grain inlet in the tower body, a cooling device is arranged above the grain outlet, a heating device and a tail gas dehumidifying device are arranged between the grain storage section and the cooling device, the tail gas dehumidifying device and the cooling device are provided with flat horn-shaped boxes which are uniformly distributed and connected between the opposite side walls,
the heating device is provided with a tube type flue gas radiator below the grain storage section in the tower body and an upper and a lower plurality of tube type steam radiators which are connected in series in sequence below the flue gas radiator,
the flue gas radiator is provided with a row of flue gas radiating tubes which are uniformly distributed between the left side wall and the right side wall in the tower body and the tube openings of which extend out of the walls, the flue gas radiating tubes are square tubes, the diagonal plane of each square tube is parallel to the axis of the tower body, the axis of each square tube is vertical to the axis of the tower body, the outer sides of the left side wall and the right side wall are respectively provided with a seal head which is covered on a flat discharge tube opening,
the shell and tube steam radiator is provided with an upper row of steam radiating tubes and a lower row of steam radiating tubes which are uniformly distributed between the left side wall and the right side wall in the tower body and have pipe orifices extending out of the walls, the steam radiating tubes are square tubes, the square tubes in each row are parallel to each other, the diagonal plane of the square tubes is parallel to the axis of the tower body, the square tubes in the upper row and the lower row are arranged in a staggered way, the axis of the square tubes has a flowing water gradient of 1-2 degrees, the outer sides of the left side wall and the right side wall are respectively provided with a sealing head covering the pipe orifices in the,
the moisture-removing horn-shaped box of the moisture-removing tail gas device is arranged between the front side wall and the rear side wall below each radiator in the tower body, the rear end opening of the horn-shaped box extends out of the wall, the outer side of the rear side wall is provided with a wet tail gas seal head covering the rear end opening of the horn-shaped box,
the horn-shaped box of the cooling device is provided with an upper row of air inlet horn-shaped boxes, a lower row of air inlet horn-shaped boxes and an air outlet horn-shaped box, the air inlet horn-shaped boxes are arranged between the left side wall and the right side wall below the heating device in the tower body, two ports of the air inlet horn-shaped boxes respectively extend out of the walls, the air outlet horn-shaped boxes are arranged between the front side wall and the rear side wall below the two rows of air inlet horn-shaped boxes in the tower body, the rear ports of the air outlet horn-shaped boxes extend out of a wet tail gas seal head outside the walls, a vertical wet exhaust tail gas cylinder with an outer discharge port at the lower end is connected behind the,
the rear end of the moisture-discharging horn-shaped box of the wet tail gas seal head is provided with an air outlet, the moisture-discharging tail gas cylinder is provided with an air inlet corresponding to the air outlet, and a wet tail gas draught fan is connected between the corresponding air outlet and the air inlet.
The utility model is used in cooperation with a steam boiler with a condensate water tank.
When the device is used, granular raw grains enter the tower body from a grain inlet of the tower body, high-temperature flue gas of a steam boiler passes through the flue gas radiator, steam of the steam boiler passes through the upper and lower tubular steam radiators which are connected in series in sequence, and the wet tail gas induced draft fan is started.
Granular raw grains fall in the tower body and flow out from the grain outlet after passing through the grain storage section, the flue gas radiator of the heating device, the tubular steam radiator, the moisture exhaust tail gas device between the heating devices and the cooling device.
When granular raw grain falls on a flue gas radiator and a tube type steam radiator, heat is transferred to the granular raw grain by a flue gas radiating tube and a steam radiating tube, condensed water generated in the steam radiating tube flows to a condensed water tank, the flue gas radiating tube and the steam radiating tube are square tubes with diagonal planes parallel to the axis of a tower body, the granular raw grain continuously turns when falling in the tower body, uniform heat transfer is facilitated, moisture in the granular raw grain is evaporated to form wet tail gas, a wet tail gas draught fan enables a wet tail gas seal head and negative pressure to be generated in the tower body, and the wet tail gas is discharged into a wet exhaust tail gas cylinder through the wet tail gas seal head and a wet tail gas draught fan and then discharged through a filter bag connected with an outer discharge port.
The low-temperature flue gas flowing through the flue gas radiator is discharged outwards, and after the steam flowing through the tubular steam radiator releases heat and is condensed, condensed water flows into a condensed water tank,
the utility model uses steam as heating medium, because the thermal capacity of the steam is large, the coefficient of the dividing wall heat transfer film of water and steam is large, the power and the matching power needed by the steam furnace are not very large, so the energy consumption of the tower type grain dryer is lower; in addition, negative pressure is formed in the tower body, wet tail gas generated by drying of the granular raw grains is discharged by the negative pressure, the discharged wet tail gas is discharged by the filter bag, and dust and impurities in the wet tail gas cannot be discharged, so that the environment cannot be polluted.
The present invention will be further described with reference to the accompanying drawings.
Drawings
Fig. 1 is a schematic view of a tower-type grain dryer according to the utility model;
FIG. 2 is a schematic side view of FIG. 1;
3 FIG. 33 3 is 3 a 3 schematic 3 sectional 3 view 3 A 3- 3 A 3 of 3 FIG. 31 3; 3
FIG. 4 is a schematic cross-sectional view B-B of FIG. 1;
FIG. 5 is a schematic cross-sectional view C-C of FIG. 1;
fig. 6 is a schematic cross-sectional view D-D of fig. 1.
Detailed Description
In the figures 1-6, the tower type grain dryer has a vertical square tower 1, the tower body of the vertical square tower has a front side wall, a rear side wall, a left side wall and a right side wall 2, 3, 4 and 5, the upper end of the tower body is provided with a grain inlet 6, the lower end of the tower body is provided with a grain outlet 7, a grain storage section 8 is arranged below the grain inlet in the tower body, a cooling device 9 is arranged above the grain outlet, a heating device 10 and a wet exhaust device 11 are arranged between the grain storage section and the cooling device, the wet exhaust device and the cooling device are provided with flat discharge horn-shaped boxes which are uniformly distributed and connected between the opposite side walls,
the heating device is provided with a tube type flue gas radiator 12 below the grain storage section in the tower body, an upper tube type steam radiator 13 and a lower tube type steam radiator 13 which are connected in series in sequence below the flue gas radiator, a pipeline 30 is connected between the adjacent tube type steam radiators,
the flue gas radiator is provided with a row of flue gas radiating pipes 14 which are uniformly distributed between the left side wall and the right side wall in the tower body and the pipe orifices of which extend out of the walls, the flue gas radiating pipes are square pipes, the diagonal plane of each square pipe is parallel to the axis of the tower body, the axis of each square pipe is vertical to the axis of the tower body, the outer sides of the left side wall and the right side wall are respectively provided with a seal head 15 which covers a flat discharge pipe orifice,
the shell and tube steam radiator is provided with eight rows of upper and lower steam radiating pipes 16 which are uniformly distributed between the left side wall and the right side wall in the tower body and have pipe orifices extending out of the walls, the steam radiating pipes are square pipes, the square pipes in each row are parallel to each other, the diagonal plane of the square pipes is parallel to the axis of the tower body, the square pipes in the upper row and the lower row are arranged in a staggered way, the axis of each square pipe has a flowing water gradient of 1-2 degrees, namely, the axis of each square pipe and the side wall plane are parallel to the axis of the tower body, the axis of each square pipe and the side wall plane have an angle a of 91-92 degrees, the outer sides of the left side wall and the,
the moisture-removing horn-shaped box 18 of the moisture-removing tail gas device is arranged between the front and rear side walls below each radiator in the tower body, the rear port 19 of the horn-shaped box extends out of the wall, the outer side of the rear side wall is provided with a wet tail gas seal head 20 which covers the rear port of the horn-shaped box,
the horn-shaped box of the cooling device is provided with an upper row of air inlet horn-shaped boxes 21, a lower row of air inlet horn-shaped boxes 22 and an air outlet horn-shaped box 22, the air inlet horn-shaped boxes are arranged between the left side wall and the right side wall below the heating device in the tower body, two ports 23 of the air inlet horn-shaped boxes respectively extend out of the walls, the air outlet horn-shaped boxes are arranged between the front side wall and the rear side wall below the two rows of air inlet horn-shaped boxes in the tower body, the rear ports 35 of the air outlet horn-shaped boxes extend out of a wet tail gas seal head outside the walls, a vertical type wet exhaust tail gas cylinder 25 with an outer exhaust port 24 at the lower end is connected behind,
the rear end of the moisture discharging horn-shaped box of the wet tail gas seal head is provided with an air outlet 27, the moisture discharging tail gas cylinder is provided with an air inlet 28 corresponding to the air outlet, and a wet tail gas induced draft fan 29 is connected between the corresponding air outlet and the air inlet.
The tower type grain dryer is used in cooperation with a steam boiler 32 having a condensate water tank 31. The flue gas pipe 33 is used for supplying heat to the flue gas radiator, the steam pipe 34 is used for supplying heat to the tubular steam radiator, the low-temperature flue gas is discharged outwards, and condensed water discharged by the tubular steam radiator is discharged into a condensed water tank.

Claims (1)

1. The utility model provides a tower grain drier, there is vertical square tower, the tower body of vertical square tower has preceding, back, a left side, four lateral walls on the right side, there is into grain mouth tower body upper end, the tower body lower extreme has a grain mouth, there is the grain storage section grain inlet below in the tower body, there is cooling device grain outlet top, there are heating device and hydrofuge tail gas device between grain storage section and the cooling device, hydrofuge tail gas device and cooling device have the equipartition even the flat row horn shape box between the relative lateral wall, its characterized in that:
the heating device is provided with a tube type flue gas radiator below the grain storage section in the tower body and an upper and a lower plurality of tube type steam radiators which are connected in series in sequence below the flue gas radiator,
the flue gas radiator is provided with a row of flue gas radiating tubes which are uniformly distributed between the left side wall and the right side wall in the tower body and the tube openings of which extend out of the walls, the flue gas radiating tubes are square tubes, the diagonal plane of each square tube is parallel to the axis of the tower body, the axis of each square tube is vertical to the axis of the tower body, the outer sides of the left side wall and the right side wall are respectively provided with a seal head which is covered on a flat discharge tube opening,
the shell and tube steam radiator is provided with an upper row of steam radiating tubes and a lower row of steam radiating tubes which are uniformly distributed between the left side wall and the right side wall in the tower body and have pipe orifices extending out of the walls, the steam radiating tubes are square tubes, the square tubes in each row are parallel to each other, the diagonal plane of the square tubes is parallel to the axis of the tower body, the square tubes in the upper row and the lower row are arranged in a staggered way, the axis of the square tubes has a flowing water gradient of 1-2 degrees, the outer sides of the left side wall and the right side wall are respectively provided with a sealing head covering the pipe orifices in the,
the moisture-removing horn-shaped box of the moisture-removing tail gas device is arranged between the front side wall and the rear side wall below each radiator in the tower body, the rear end opening of the horn-shaped box extends out of the wall, the outer side of the rear side wall is provided with a wet tail gas seal head covering the rear end opening of the horn-shaped box,
the horn-shaped box of the cooling device is provided with an upper row of air inlet horn-shaped boxes, a lower row of air inlet horn-shaped boxes and an air outlet horn-shaped box, the air inlet horn-shaped boxes are arranged between the left side wall and the right side wall below the heating device in the tower body, two ports of the air inlet horn-shaped boxes respectively extend out of the walls, the air outlet horn-shaped boxes are arranged between the front side wall and the rear side wall below the two rows of air inlet horn-shaped boxes in the tower body, the rear ports of the air outlet horn-shaped boxes extend out of a wet tail gas seal head outside the walls, a vertical wet exhaust tail gas cylinder with an outer discharge port at the lower end is connected behind the,
the rear end of the moisture-discharging horn-shaped box of the wet tail gas seal head is provided with an air outlet, the moisture-discharging tail gas cylinder is provided with an air inlet corresponding to the air outlet, and a wet tail gas draught fan is connected between the corresponding air outlet and the air inlet.
CN202020431294.4U 2020-03-30 2020-03-30 Tower type grain dryer Expired - Fee Related CN211983573U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202020431294.4U CN211983573U (en) 2020-03-30 2020-03-30 Tower type grain dryer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202020431294.4U CN211983573U (en) 2020-03-30 2020-03-30 Tower type grain dryer

Publications (1)

Publication Number Publication Date
CN211983573U true CN211983573U (en) 2020-11-24

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Application Number Title Priority Date Filing Date
CN202020431294.4U Expired - Fee Related CN211983573U (en) 2020-03-30 2020-03-30 Tower type grain dryer

Country Status (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111296564A (en) * 2020-03-30 2020-06-19 郭立春 Tower type grain dryer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111296564A (en) * 2020-03-30 2020-06-19 郭立春 Tower type grain dryer

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Granted publication date: 20201124