CN216146773U - Crushing and central ventilation device suitable for silo multichannel ventilation column - Google Patents
Crushing and central ventilation device suitable for silo multichannel ventilation column Download PDFInfo
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- CN216146773U CN216146773U CN202121717369.6U CN202121717369U CN216146773U CN 216146773 U CN216146773 U CN 216146773U CN 202121717369 U CN202121717369 U CN 202121717369U CN 216146773 U CN216146773 U CN 216146773U
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Abstract
The utility model provides a fall breakage and central ventilation unit suitable for silo multichannel ventilation column which characterized in that: the device comprises a multi-channel ventilation column (2) vertically arranged on a base (1), a wind gathering box (3) and a cone cage section (4) which are positioned at the top of the multi-channel ventilation column, and a central ventilation fan (5) communicated with the wind gathering box (3) through a pipeline; the multi-channel ventilation column (2) comprises a base section (2-1), a plurality of sections of descending crushing sections (2-2), a plurality of sections of central ventilation sections (2-3) and a plurality of sections of standard sections (2-4), wherein the base section has the same external structure, the same height and the same upper and lower interfaces, and can be combined randomly according to the requirements of a grain storage process from bottom to top.
Description
Technical Field
The utility model relates to a technology for reducing and crushing, reducing and grading grains in a silo and ventilating grains at the central part of the silo, in particular to a reducing and crushing and central ventilating device suitable for a multi-channel ventilating column of the silo.
Background
The application is a continuation of Chinese patent ZL201821252066.X named as 'a multi-channel ventilation column device for a silo'. The device is arranged at the central part of the silo and is used as a strut to support a silo top template during the silo building; after the construction of the silo is finished, the silo can be used as a multi-channel ventilation column in the storage process, and various purposes such as ventilation of grain piles and the like are realized.
However, the fall of the grains after entering the silo is large, and the gravity acceleration effect in the grain falling process is added, so that the phenomena of grain crushing and graded accumulation caused by collision and friction between grain particles and the floor, between grain particles and grain piles and between grain particles are easily caused. The crushing of the grain means loss and quality deterioration, and the grain is stacked and overlapped with the grading of the grain, so that great workload and difficulty are brought to the grain safe storage in the later period. Therefore, the reduction and crushing, the reduction and classification and the central ventilation of the silo grain have important practical significance.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a reducing and crushing and central ventilation device suitable for a multi-channel ventilation column of a silo on the basis of Chinese patent ZL201821252066.X named as 'a multi-channel ventilation column device for the silo'. According to the utility model, the internal structure of the standard section unit of the multi-channel ventilation column is reasonably adjusted, so that the grain entering the silo is broken and graded reduced in the falling process of the grain in the multi-channel ventilation column of the silo on the basis of not changing the original function; the ventilation problem of grain at the central part of the silo can be realized through the multi-channel ventilation column in the later grain storage management process.
The object of the utility model can be achieved by the following technical measures:
the utility model relates to a falling crushing and central ventilation device suitable for a silo multi-channel ventilation column, which comprises the multi-channel ventilation column vertically arranged on a base, a wind gathering box and a cone cage section which are positioned at the top of the multi-channel ventilation column, and a central ventilation fan communicated with the wind gathering box through a pipeline; the multi-channel ventilation column comprises a base section, a plurality of sections of descending crushing sections, a plurality of sections of central ventilation sections and a plurality of sections of standard sections, wherein the base section, the sections of descending crushing sections, the sections of central ventilation sections and the sections of standard sections are identical in external structure, height and upper and lower interfaces and can be combined randomly according to the process requirements of grain storage.
The base is arranged on a discharge hole in the center of the silo or on a terrace in the center of the silo; the base section is positioned on the base and comprises a main channel with a circular cross section and four branch air channels with semicircular cross sections, wherein the four branch air channels are uniformly distributed around the main channel; and the three branch air channels in the four branch air channels are respectively provided with an access hole with the same size, the other branch air channel is provided with a main access hole with the size larger than the access hole, and the wall of the main channel cylinder corresponding to the main access hole is provided with an inner access hole for clearing accumulated materials in the main channel.
The crushing section comprises a main channel with a circular cross section, four branch air channels with semicircular cross sections are uniformly distributed around the main channel, and a plurality of grain inlet and outlet openings are formed in the main channel wall between every two adjacent branch air channels from top to bottom; a buffer hopper and a collecting hopper are sequentially arranged in the main channel from top to bottom; the buffer hopper is of an inverted cone structure, the bottom of the buffer hopper is provided with a hole, and the buffer hopper is arranged at the central part of the main channel through a bracket (the falling grains are received, the grains falling into the buffer hopper cannot flow out of the hole at the lower part of the buffer hopper due to large yield and overflow outflow, and the flow speed is reduced; the collecting hopper is arranged on the inner wall of the main channel cylinder (the grains overflowed from the buffer hopper are buffered and decelerated again and collected to the central area of the unit so as to enter the buffer hopper at the next stage); a bottom plate formed by welding punching plate plates is arranged at the lower part of the collecting hopper, not only the collecting hopper is supported, but also a closed cavity is formed by the bottom plate, the collecting hopper and the main channel cylinder wall; the closed cavity is communicated with the branch air duct through the vent hole formed in the wall of the main channel cylinder.
The central ventilation section comprises a main channel with a circular cross section and four branch air channels with semicircular cross sections, which are uniformly distributed around the main channel, and a plurality of grain inlet and outlet openings are formed in the main channel wall between every two adjacent branch air channels from top to bottom; and a vent hole is processed on the outer side wall of the branch air channel of the central ventilation section.
Furthermore, the vent hole on the outer side wall of the branch air duct at the central ventilation section is made of a ventilation plate made of porous plates or an outer side plate made of punching plates.
The standard section is composed of a main channel used as a grain channel entering the silo, four branch air channels with semicircular cross sections are uniformly distributed around the main channel, and a plurality of grain inlets and grain outlets are arranged on the main channel wall between every two adjacent branch air channels from top to bottom (the structure of the standard section is the same as that of the multi-channel ventilation column disclosed in the Chinese patent ZL201821252066. X).
The air gathering box is arranged at the top of the multi-channel ventilation column, the cross section of the air gathering box is of a hollow cylindrical structure provided with an interlayer annular cavity, the cross section shape of the hollow cylindrical cavity is matched with the cross section shape and size of a main channel of a standard section of the multi-channel ventilation column, the outer contour size of the cross section of the air gathering box is consistent with the maximum outer diameter size of a branch air channel of the standard section, the interlayer annular cavity is communicated with the branch air channel of the standard section as the air gathering cavity, the hollow cylindrical cavity is communicated with the main channel of the standard section as a grain channel, and the outer side of an outer ring of the interlayer annular cavity is communicated with a central ventilation fan positioned at the top of the bin through an air pipe. Furthermore, the number of the central ventilation fans can be one or two according to the capacity of the grain silo. When the central ventilation fan operates, ventilation airflow enters the outer ring box body of the air collecting box through the air pipe and downwards enters the branch air channel of the multi-channel ventilation column to flow downwards; when the airflow reaches the central ventilation section, the airflow enters the external grain pile through the ventilation plate on the branch air duct of the section to ventilate and cool grains in the surrounding area of the multi-channel ventilation column; when the air current reachd and fall broken section, inside the ventilation hole entering cavity through this section, even wind effect through the perforated plate flows out, plays aeration cooling effect to this central zone's grain.
The cone cage section is arranged on the outer edge of the upper part of the air collecting box, is a connecting piece for fixing the multi-channel ventilation column of the silo and the top of the silo, and is internally provided with the grain chute.
When the silo feeds grain, the grain is guided into the main channel of the multi-channel ventilation column of the silo through the grain chute of the conical cage section and falls under the action of gravity, and in the falling process, due to the multiple buffering action of the falling and crushing section, the falling speed is reduced, and the collision and extrusion action among grain particles and between grain particles and grain piles is slowed down, so that the effects of falling and crushing, grain grading reduction and the like are achieved.
The utility model has the following beneficial effects:
aiming at the characteristics of large grain feeding fall of a silo, easy grain crushing and unsmooth ventilation of the central part of the silo, the utility model designs a falling crushing and central ventilation device by utilizing a multi-channel ventilation column of the silo on the basis of an authorized Chinese patent of the company and a patent number ZL201821252066.X, and realizes falling crushing and grading reduction in the falling process of grain entering the silo in the multi-channel ventilation column by reasonably adjusting the internal structure of a standard section unit of the multi-channel ventilation column on the basis of not changing the original function of the multi-channel ventilation column; the ventilation problem of grain at the central part of the silo can be realized through the multi-channel ventilation column in the later grain storage management process.
In the design, the multi-channel ventilation column consists of a basic section, a descending crushing section, a central ventilation section and a standard section, wherein the descending crushing section, the central ventilation section and the standard section are combined and arranged according to a certain rule: the central ventilation section is arranged below the grain loading line; the crushing section and the central ventilation section or the standard section are installed in a one or two-piece combined mode at intervals; the standard section is mainly installed in a multi-channel ventilation column near and above the grain loading line. (in order to prevent short circuit of air current in the central ventilation section, no vent hole is arranged in the branch air duct of the crushing section near and above the grain loading line)
And thirdly, in the design, the grain pile at the central part of the silo is ventilated, so that the ventilation in the crushing section can be realized, and the ventilation in the branch air channel of the central ventilation section can also be realized by utilizing the ventilation plate arranged outside the branch air channel of the central ventilation section. When only one central fan is arranged, the four branch air channels of the multi-channel ventilation column are completely ventilated; when two central fans are arranged, the two branch air channels can be connected with one central fan through the collection air box.
Drawings
Fig. 1 is an overall structural view of the present invention.
Fig. 2 is a basic segment structure diagram.
Fig. 3 is a cross-sectional view of fig. 2.
Fig. 4 is a view of a descending crushing section.
Fig. 5 is a sectional view a-a of fig. 4.
Fig. 6 is a top view of fig. 1.
Fig. 7 is a view in the direction of P of fig. 5.
Fig. 8 is a diagram of a central ventilation section.
Fig. 9 is a plan view of fig. 8.
FIG. 10 is a block diagram of a standard segment.
Fig. 11 is a top view of fig. 10.
Detailed Description
The utility model will be further described with reference to the following examples (drawings):
as shown in fig. 1, the crushing and central ventilation device for the multi-channel ventilation column of the silo comprises a multi-channel ventilation column 2 vertically arranged on a base 1, a wind gathering box 3 positioned at the top of the multi-channel ventilation column, a conical cage section 4 and a central ventilation fan 5 communicated with the wind gathering box 3 through a pipeline; the multi-channel ventilation column 2 comprises a base section 2-1, a plurality of sections of descending crushing sections 2-2, a plurality of sections of central ventilation sections 2-3 and a plurality of sections of standard sections 2-4 which have the same external structure, the same height and the same upper and lower interfaces and can be combined randomly according to the requirements of a grain storage process from bottom to top.
The base 1 is arranged on a discharge hole in the center of a silo or on a terrace in the center of the silo; the base section 2-1 is positioned on the base 1, the base section 2-1 comprises a main channel with a circular cross section and four branch air channels with semicircular cross sections which are uniformly distributed around the main channel, and a plurality of grain inlets and grain outlets are arranged on the main channel wall between every two adjacent branch air channels from top to bottom; three of the four branch air ducts are respectively provided with an access hole 2-1-1 with the same size, the other branch air duct is provided with a main access hole 2-1-2 with a larger size, and the wall of the main channel cylinder corresponding to the position of the main access hole 2-1-2 is provided with an inner access hole 2-1-3 (shown in figures 2 and 3) for clearing accumulated materials in the main channel.
As shown in fig. 4, 5, 6 and 7, the descending crushing section 2-2 comprises a main channel with a circular cross section, four branch air channels with a semicircular cross section uniformly distributed around the main channel, and a plurality of grain inlets and grain outlets are arranged on the main channel wall between every two adjacent branch air channels from top to bottom; a buffer hopper 2-2-1 and a collecting hopper 2-2-3 are sequentially arranged in the main channel from top to bottom; the buffer bucket 2-2-1 is in an inverted cone structure, the bottom of the buffer bucket is provided with a hole, and the buffer bucket is arranged at the central part of the main channel through a bracket 2-2-2 (the falling grains are received, the grains falling into the buffer bucket overflow and flow out due to large yield and no time for flowing out from the hole at the lower part of the buffer bucket, and the flow speed is reduced; the collecting hopper 2-2-3 is arranged on the inner wall of the main channel cylinder (the grains overflowed from the buffer hopper 2-2-1 are buffered and decelerated again and collected to the central area of the unit so as to enter the buffer hopper 2-2-1 of the next stage); a bottom plate 2-2-4 formed by welding punching plate plates is arranged at the lower part of the collecting hopper 2-2-3, not only plays a role of supporting the collecting hopper 2-2-3, but also forms a closed cavity 2-2-6 with the collecting hopper 2-2-3 and the main channel cylinder wall 2-2-5; the closed cavity 2-2-6 is communicated with the branch air duct 2-2-8 through a vent hole 2-2-7 arranged on the cylinder wall 2-2-5 of the main channel.
As shown in fig. 8 and 9, the central ventilation section 2-3 includes a main channel with a circular cross section, four branch air channels with a semicircular cross section uniformly distributed around the main channel, and a plurality of grain inlets and grain outlets are arranged on the main channel wall between every two adjacent branch air channels from top to bottom; the outer side wall of the branch air channel of the central ventilation section 2-3 is provided with a ventilation hole.
Furthermore, the vent holes on the outer side wall of the branch air duct of the central ventilation section 2-3 are made of ventilation plates 2-3-1 made of porous plates or outer side plates made of punching plates.
The standard section 2-4 is composed of a main channel used as a grain channel entering a silo, four branch air channels with semicircular cross sections are uniformly distributed around the main channel, and a plurality of grain inlets and grain outlets (the structure of which is the same as that of the standard section of the multi-channel ventilation column disclosed in the Chinese patent ZL201821252066. X) are arranged on the main channel wall between every two adjacent branch air channels from top to bottom (as shown in figures 10 and 11).
The air converging box 3 is installed at the top of the multi-channel ventilation column 2, the cross section of the air converging box is of a hollow cylindrical structure provided with an interlayer annular cavity, the cross section shape of the hollow cylindrical cavity is matched with the cross section shape and size of a main channel of a standard section 2-4 of the multi-channel ventilation column, the outer contour size of the cross section of the air converging box is consistent with the maximum outer diameter size of a branch air channel of the standard section, the interlayer annular cavity is communicated with the branch air channel of the standard section as the air converging cavity, the hollow cylindrical cavity is communicated with the main channel of the standard section as a grain channel, and the outer side of the outer ring of the interlayer annular cavity is communicated with a central ventilation fan 5 positioned at the top of the bin through an air pipe. Further, the number of the central ventilation fans 5 may be one or two according to the capacity of the grain silo. When the central ventilation fan operates, ventilation airflow enters the outer ring box body of the air collecting box 3 through the air pipe and downwards enters the branch air channel of the multi-channel ventilation column 2 to flow downwards; when the airflow reaches the central ventilation section 2-3, the airflow enters the external grain pile through the ventilation plate 2-3-1 on the branch air channel of the section, and the ventilation and cooling work is carried out on the grains in the peripheral area of the multi-channel ventilation column 2; when the airflow reaches the crushing section 2-2, the airflow enters the cavity 2-2-6 through the vent holes 2-2-7 of the section and flows out under the uniform air action of the porous plate 2-2-4, so that the ventilation and cooling effects on the grains in the central area are achieved.
The cone cage section 4 is arranged on the outer edge of the upper part of the air collecting box 3, the cone cage section 4 is a connecting piece for fixing the multi-channel ventilation column of the silo and the top of the silo, and a grain chute is arranged in the cone cage section.
Claims (8)
1. The utility model provides a fall breakage and central ventilation unit suitable for silo multichannel ventilation column which characterized in that: the device comprises a multi-channel ventilation column (2) vertically arranged on a base (1), a wind gathering box (3) and a cone cage section (4) which are positioned at the top of the multi-channel ventilation column, and a central ventilation fan (5) communicated with the wind gathering box (3) through a pipeline; the multi-channel ventilation column (2) comprises a base section (2-1), a plurality of sections of descending crushing sections (2-2), a plurality of sections of central ventilation sections (2-3) and a plurality of sections of standard sections (2-4), wherein the base section has the same external structure, the same height and the same upper and lower interfaces, and can be combined randomly according to the requirements of a grain storage process from bottom to top.
2. The device for the falling fragmentation and central ventilation of multichannel columns for silos according to claim 1, characterized in that: the base (1) is arranged on a discharge hole in the center of the silo or on a terrace in the center of the silo; the base section (2-1) is positioned on the base (1), the base section (2-1) comprises a main channel with a circular cross section and four branch air channels with semicircular cross sections, which are uniformly distributed around the main channel, and a plurality of grain inlets and grain outlets are arranged on the main channel wall between every two adjacent branch air channels from top to bottom; three of the four branch air ducts are respectively provided with an access hole (2-1-1) with the same size, the other branch air duct is provided with a main access hole (2-1-2) with a larger size than the access hole (2-1-1), and the wall of the main channel cylinder corresponding to the main access hole (2-1-2) is provided with an inner access hole (2-1-3) for clearing accumulated materials in the main channel.
3. The device for the falling fragmentation and central ventilation of multichannel columns for silos according to claim 1, characterized in that: the falling and crushing section (2-2) comprises a main channel with a circular cross section, four branch air channels with semicircular cross sections are uniformly distributed around the main channel, and a plurality of grain inlet and outlet openings are formed in the main channel wall between every two adjacent branch air channels from top to bottom; a buffer hopper (2-2-1) and a collecting hopper (2-2-3) are sequentially arranged in the main channel from top to bottom; the buffer hopper (2-2-1) is of an inverted cone structure, the bottom of the buffer hopper is provided with a hole, and the buffer hopper is arranged at the central part of the main channel through a bracket (2-2-2); the collecting hopper (2-2-3) is arranged on the inner wall of the main channel cylinder; a bottom plate (2-2-4) formed by welding punching plates is arranged at the lower part of the collecting hopper (2-2-3), so that the collecting hopper (2-2-3) is supported, and a closed cavity (2-2-6) is formed by the bottom plate, the collecting hopper (2-2-3) and the main channel cylinder wall (2-2-5); the closed cavity (2-2-6) is communicated with the branch air duct (2-2-8) through a vent hole (2-2-7) arranged on the cylinder wall (2-2-5) of the main channel.
4. The device for the falling fragmentation and central ventilation of multichannel columns for silos according to claim 1, characterized in that: the central ventilation section (2-3) comprises a main channel with a circular cross section and four branch air channels with semicircular cross sections which are uniformly distributed around the main channel, and a plurality of grain inlets and grain outlets are arranged on the main channel wall between every two adjacent branch air channels from top to bottom; the outer side wall of the branch air channel of the central ventilation section (2-3) is provided with a ventilation hole.
5. The device for the falling fragmentation and central ventilation of multichannel columns for silos according to claim 4, characterized in that: the vent hole on the outer side wall of the branch air duct positioned in the central ventilation section (2-3) is made of a ventilation plate (2-3-1) made of a porous plate or an outer side plate made of a punching plate.
6. The device for the falling fragmentation and central ventilation of multichannel columns for silos according to claim 1, characterized in that: the standard section (2-4) is composed of a main channel used as a grain channel entering the silo, four branch air channels with semicircular cross sections are uniformly distributed around the main channel, and a plurality of grain inlets and grain outlets are arranged on the main channel wall between every two adjacent branch air channels from top to bottom.
7. The device for the falling fragmentation and central ventilation of multichannel columns for silos according to claim 1, characterized in that: the air gathering box (3) is installed at the top of the multi-channel ventilation column (2), the cross section of the air gathering box is of a hollow cylindrical structure provided with an interlayer annular cavity, the cross section shape of the hollow cylindrical cavity is matched with the cross section shape and size of a main channel of a standard section (2-4) of the multi-channel ventilation column, the outer contour size of the cross section of the air gathering box (3) is consistent with the maximum outer diameter size of a branch air channel of the standard section, the interlayer annular cavity is communicated with the branch air channel of the standard section as the air gathering cavity, the hollow cylindrical cavity is communicated with the main channel of the standard section as a grain channel, and the outer ring of the interlayer annular cavity is communicated with a central ventilation fan (5) located at the top of the bin through an air pipe.
8. The device for the falling fragmentation and central ventilation of multichannel columns for silos according to claim 1, characterized in that: the cone cage section (4) is arranged on the outer edge of the upper part of the air collecting box (3), the cone cage section (4) is a connecting piece for fixing the multi-channel ventilation column of the silo and the top of the silo, and a grain sliding pipe is arranged in the cone cage section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121717369.6U CN216146773U (en) | 2021-07-27 | 2021-07-27 | Crushing and central ventilation device suitable for silo multichannel ventilation column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121717369.6U CN216146773U (en) | 2021-07-27 | 2021-07-27 | Crushing and central ventilation device suitable for silo multichannel ventilation column |
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| Publication Number | Publication Date |
|---|---|
| CN216146773U true CN216146773U (en) | 2022-04-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121717369.6U Active CN216146773U (en) | 2021-07-27 | 2021-07-27 | Crushing and central ventilation device suitable for silo multichannel ventilation column |
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| CN (1) | CN216146773U (en) |
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- 2021-07-27 CN CN202121717369.6U patent/CN216146773U/en active Active
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