CN109531810A - Silo, silo feeding method and concrete mixing equipment - Google Patents
Silo, silo feeding method and concrete mixing equipment Download PDFInfo
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- CN109531810A CN109531810A CN201811443179.2A CN201811443179A CN109531810A CN 109531810 A CN109531810 A CN 109531810A CN 201811443179 A CN201811443179 A CN 201811443179A CN 109531810 A CN109531810 A CN 109531810A
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- silo
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- feed
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- 238000000034 method Methods 0.000 title claims abstract description 21
- 239000000463 material Substances 0.000 claims abstract description 80
- 239000000428 dust Substances 0.000 claims abstract description 34
- 238000007599 discharging Methods 0.000 claims description 15
- 239000000843 powder Substances 0.000 abstract description 57
- 230000008569 process Effects 0.000 abstract description 10
- 238000005452 bending Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000005484 gravity Effects 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
- B28C7/04—Supplying or proportioning the ingredients
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
- B28C7/16—Discharge means, e.g. with intermediate storage of fresh concrete
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- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
- Air Transport Of Granular Materials (AREA)
Abstract
The invention relates to the technical field of silo feeding, and discloses a silo and a silo feeding method. The silo comprises a material accommodating cavity formed by enclosing a silo wall, a cyclone feeding cylinder is arranged on the silo wall, the cyclone feeding cylinder comprises a feeding channel, a feeding inlet at one end of the feeding channel is communicated with the outside of the silo, a feeding outlet at the other end of the feeding channel is communicated with the material accommodating cavity, and the structure of the feeding channel is as follows: so that the material conveyed by the wind moves downward in the circumferential direction in the feed channel and enters the material accommodating chamber from the feed outlet in the circumferential direction. The circumferential downward movement of the powder in the feeding channel reduces the initial speed of the powder when the powder enters the silo, thereby reducing the dust amount generated in the falling process of the powder, and further reducing the dust removal pressure of the silo, such as the dust removal pressure of a dust remover arranged on the silo.
Description
Technical Field
The invention relates to the technical field of silo feeding, in particular to a silo, a silo feeding method and concrete mixing equipment.
Background
The existing concrete mixing plant (building) is provided with a silo, powder is pumped into the silo through a powder tank truck through a feeding pipe for storage, and when the mixing plant uses the powder, the powder in the silo is conveyed into a storage bin of a mixing main building through a screw conveyor or an air duct.
The existing silo is designed by adopting a 90-degree right-angled feeding pipe, namely, a vertical pipe extends upwards to the top of the silo, then is connected with a horizontal pipe, and the horizontal pipe is connected with a downward vertical pipe to enter the silo, so that powder materials need to enter the silo through two right-angled bends, then are scattered to two sides along an outlet of the feeding pipe, and are continuously upwards accumulated at the conical bottom of the silo.
The existing silo feeding mode has certain defects, for example, powder materials need to enter the silo through two 90-degree corners, so that on one hand, the inner wall of a feeding pipe is greatly impacted, the inner wear of the pipe wall is accelerated, and on the other hand, a powder tank truck needs more feeding air pressure, so that waste is caused; in addition, the powder has a certain initial speed of entering a silo when vertically entering the silo, and the powder blanking speed is very high and the time is very short due to the action of the gravity acceleration in the descending process, a large amount of dust can be generated in the falling and accumulating process, and the requirement of the dust removal capacity of the dust remover on the large amount of dust is high.
Disclosure of Invention
In a first aspect, the object of the present invention is to provide a silo which reduces the amount of dust generated during the fall of the powder, thereby reducing the dust removal pressure of the silo.
In order to achieve the above object, the present invention provides a silo, which comprises a material accommodating cavity enclosed by a silo wall, wherein a cyclone feeding cylinder is arranged on the silo wall, the cyclone feeding cylinder comprises a feeding channel, a feeding inlet at one end of the feeding channel is communicated with the outside of the silo, a feeding outlet at the other end of the feeding channel is communicated with the material accommodating cavity, and the structure of the feeding channel is as follows: so that the material conveyed by the wind moves downward in the circumferential direction in the feed channel and enters the material accommodating chamber from the feed outlet in the circumferential direction.
According to the technical scheme, the cyclone feeding barrel is arranged on the wall of the silo, and the feeding channel of the cyclone feeding barrel can enable materials conveyed by wind power in the cyclone feeding barrel to enter the material containing cavity of the silo from the feeding outlet along the circumferential direction, so that the materials such as powder rotate and tangentially come out from the feeding outlet, the initial speed direction of the materials entering the silo is changed from the vertical direction to the downward direction of the existing silo to face the side wall of the silo, the initial speed direction of the powder when the powder enters the silo is changed, the initial speed of the powder when the powder enters the silo is reduced due to the circumferential downward movement of the powder in the feeding channel, the dust amount generated in the falling process of the powder is reduced, and the dust removal pressure of the silo, such as the dust removal pressure of a dust remover arranged on the silo, is further.
Further, the feeding inlet is arranged tangentially to the outer peripheral surface of the cyclone feeding cylinder; and/or the feeding outlet is arranged along the circumferential direction of the cyclone feeding cylinder in an extending way.
Further, the cyclone feeding cylinder comprises an outer cylinder and an inner cylinder which are vertically arranged, wherein one end of the outer cylinder is formed into an open end, the other end of the outer cylinder is formed into a closed end through an end cover, the inner cylinder is positioned in the outer cylinder, one end of the inner cylinder is connected to the end cover, an annular blanking space with an open lower end is formed between the outer cylinder and the inner cylinder, and the annular blanking space is the feeding channel; the closed end of the outer cylinder is positioned outside the silo, the side wall of the cylinder section of the outer cylinder positioned outside the silo is provided with the feeding inlet, and the open end of the outer cylinder is positioned in the material accommodating cavity.
Furthermore, the annular blanking space is circular or elliptical.
Further, the cyclone feeding cylinder comprises a spiral descending cylinder arranged in the annular blanking space, wherein the feeding channel is formed by an internal channel of the spiral descending cylinder, one end of the spiral descending cylinder is the feeding inlet, and the other end of the spiral descending cylinder is the feeding outlet.
Furthermore, a plurality of discharging notches which are arranged at intervals along the spiral extending direction are formed on the bottom cylinder wall of the spiral descending cylinder, and the central axes of the discharging notches are obliquely arranged along the spiral direction.
Further, the outer cylinder and the inner cylinder are disposed at a central position or an edge position of a silo top wall of the silo; and/or the silo comprises a duster, wherein the duster is disposed in the inner barrel and protrudes from the end cap.
Optionally, the cyclone feeding cylinder is a screw descending cylinder, wherein the feeding channel is formed by an internal channel of the screw descending cylinder, one end of the screw descending cylinder is the feeding inlet, and the other end is the feeding outlet.
Furthermore, a plurality of discharging notches which are arranged at intervals along the spiral extending direction are formed on the bottom cylinder wall of the spiral descending cylinder, and the central axes of the discharging notches are obliquely arranged along the spiral direction.
In addition, an inner cylinder with two open ends is arranged in the silo, an annular blanking space with an open lower end is formed between the inner cylinder and the silo side wall of the silo, the annular blanking space is the feeding channel, and the silo side wall part of the silo side wall corresponding to the annular blanking space is provided with the feeding inlet.
Further, a feeding pipe is arranged outside the silo and comprises a vertical pipe section and a horizontal pipe section, wherein the horizontal pipe section is connected with the feeding inlet in a direction tangential to the cyclone feeding cylinder; and/or, the feeding inlet is formed at the middle position of the cyclone feeding cylinder in the axial direction of the cyclone feeding cylinder.
In a second aspect, the present invention provides a silo feeding method comprising: the materials are driven by wind power to be horizontally conveyed and enter the feeding channel in the cyclone feeding cylinder in the direction tangential to the cyclone feeding cylinder, are conveyed downwards in the circumferential direction through the feeding channel and are screwed into the silo in the circumferential direction.
Therefore, as shown above, materials conveyed by wind power are conveyed downwards in the circumferential direction in the feeding channel, so that the materials such as powder can tangentially come out from the feeding outlet in a rotating manner, the initial speed direction of the materials entering the silo is changed from vertical downward of the existing silo to the side wall of the silo, the initial speed direction of the powder when the powder enters the silo is changed, and the circumferential downward movement of the powder in the feeding channel reduces the initial speed of the powder when the powder enters the silo, so that the powder dust amount generated in the falling process of the powder is reduced, and the dust removal pressure of the silo, such as the dust removal pressure of a dust remover arranged on the silo, is further reduced.
Further, the materials are driven by wind power to be vertically conveyed upwards to the upper part of the silo and then horizontally conveyed.
In a third aspect, the present invention provides a concrete mixing apparatus comprising a silo as defined in any one of the above first aspects; alternatively, the concrete mixing apparatus may be capable of feeding a silo of the concrete mixing apparatus with a silo feeding method as described in any of the second aspects above.
Thus, as described above, the overall performance of the concrete mixing apparatus is improved.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view of a first embodiment of a silo according to the present invention;
FIG. 2 is a schematic top view of the structure of FIG. 1;
FIG. 3 is a schematic end view of a cyclone feed cylinder in a silo according to an embodiment of the present invention;
FIG. 4 is a schematic end view of another cyclone feed cylinder in a silo according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of a second configuration of a silo according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of a third configuration of a silo according to an embodiment of the present invention;
FIG. 7 is a schematic top view of the structure of FIG. 6;
figure 8 is a schematic diagram of a fourth configuration of a silo according to an embodiment of the present invention;
FIG. 9 is a schematic top view of the structure of FIG. 8;
FIG. 10 is a schematic diagram of a fifth embodiment of a silo according to the present invention;
fig. 11 is a schematic top view of the structure of fig. 10.
Description of the reference numerals
1-material containing cavity, 2-cyclone feeding cylinder, 3-feeding inlet, 4-feeding outlet, 5-outer cylinder, 6-inner cylinder, 7-end cover, 8-annular blanking space, 9-spiral descending cylinder, 10-discharging notch, 11-bin top wall, 12-dust remover, 13-bin side wall, 14-vertical pipe section and 15-horizontal pipe section.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
In a first aspect, the present invention provides a silo which may be used in a concrete mixing plant, such as a concrete mixing plant or a concrete mixing plant, for storing powder which is pumped into the silo via a feed pipe by a powder tanker.
Referring to the structures shown in fig. 1, 5 and 10, the silo provided by the invention comprises a material accommodating cavity 1 enclosed by the wall of the silo, and a cyclone feeding cylinder 2 is arranged on the wall of the silo, wherein the cyclone feeding cylinder 2 comprises a feeding channel, a feeding inlet 3 at one end of the feeding channel is communicated with the outside of the silo, a feeding outlet 4 at the other end of the feeding channel is communicated with the material accommodating cavity 1, and the feeding channel is structurally set as follows: so that the material conveyed by the wind moves downwards in the feed channel and enters the material receiving chamber 1 from the feed outlet 4 in the circumferential direction.
In the technical scheme, the cyclone feeding cylinder 2 is arranged on the wall of the silo, and the feeding channel of the cyclone feeding cylinder 2 can enable materials conveyed by wind power in the cyclone feeding cylinder to enter the material containing cavity of the silo from the feeding outlet 4 along the circumferential direction, so that the materials such as powder materials rotate and tangentially come out from the feeding outlet 4, the initial speed direction of the materials entering the silo is changed from the vertical downward direction of the existing silo to the side wall of the silo, the initial speed direction of the powder materials entering the silo is changed, and the initial speed of the powder materials entering the silo is reduced due to the circumferential downward movement of the powder materials in the feeding channel, so that the amount of dust generated in the falling process of the powder materials is reduced, and the dust removal pressure of the silo, such as the dust removal pressure of a dust remover arranged on the silo, is further reduced.
Of course, the material may enter the feed channel from the feed inlet 3 from any suitable direction and then move circumferentially downward along the feed channel.
Further, in order to reduce the impact of the material on the inner wall of the feeding pipe, reduce the internal wear of the pipe wall, and simultaneously reduce the feeding air pressure required by the powder tanker, preferably, as shown in fig. 2, 3 and 4, the feeding inlet 3 is arranged tangentially to the outer peripheral surface of the cyclone feeding cylinder 2, so that the horizontal pipe section of the feeding pipe can be directly connected with the feeding inlet 3, and the feeding pipe is prevented from forming a vertical pipe section downwards in bending, thereby reducing a bending angle of 90 degrees compared with the prior art, that is, the powder of the powder tanker is conveyed upwards through the vertical pipe section of the feeding pipe and then conveyed through the horizontal pipe section of the feeding pipe through an arc-shaped transition angle section to enter the feeding channel tangentially from the feeding inlet;
and/or the presence of a gas in the gas,
in order to enable the material, such as powder, to fall more evenly and completely into the silo, the feed outlet 4 is preferably arranged to extend in the circumferential direction of the cyclone feed cylinder 2, so that the material will pass the circumferentially extending section of the feed outlet 4 during the circumferential downward movement, and thus will first fall in the longer circumferential direction.
Of course, in the silo of the present invention, the cyclone feeding cylinder 2 may have various forms, but whichever form is adopted, it is sufficient that it can achieve "the material conveyed by wind moves downward in the circumferential direction in the feeding channel and enters the material accommodating chamber 1 from the feeding outlet 4 in the circumferential direction".
For example, in one structural form, as shown in fig. 1, the cyclone feeding cylinder 2 comprises an outer cylinder 5 and an inner cylinder 6 which are vertically arranged, that is, the central axes of the outer cylinder 5 and the inner cylinder 6 are vertically parallel to the central axis of the silo, wherein one end of the outer cylinder 5 is formed into an open end, the other end is formed into a closed end through an end cover 7, the inner cylinder 6 is positioned in the outer cylinder 5, one end of the inner cylinder 6 is connected to the end cover 7, an annular blanking space 8 with an open lower end is formed between the outer cylinder 5 and the inner cylinder 6, the annular blanking space 8 is a feeding channel, that is, the open end of the annular blanking space 8 is used as; wherein, the closed end of the outer cylinder 5 is positioned outside the silo, a feeding inlet 3 is formed on the side wall of the cylinder section of the outer cylinder 5 positioned outside the silo, and the open end of the outer cylinder 5 is positioned in the material accommodating cavity 1.
Therefore, materials such as powder enter the annular blanking space 8 from the feeding inlet 3 tangentially, the materials are driven by wind power to move along the circumferential direction of the annular blanking space 8 due to the tangential speed during entering, and the materials continuously fall due to gravity in the circumferential movement process, so that the materials are continuously blanked downwards in the circumferential direction and enter the material accommodating cavity 1 of the silo along the circumferential direction.
Of course, the open lower end of the annular blanking space 8 will enable the material to be blanked as axially as possible in the entire circumferential direction.
Of course, as shown in fig. 3 or fig. 4, the annular blanking space 8 is circular or oval. For example, the outer cylinder 5 and the inner cylinder 6 may be cylindrical or elliptical cylinders. Of course, the annular blanking space 8 can also be of any other suitable shape.
Alternatively, in another form of construction, as shown in fig. 5, the cyclone feeder 2 comprises a screw-down drum 9 disposed in the annular blanking space 8, wherein the feed passage is formed by an internal passage of the screw-down drum 9, and the screw-down drum 9 has one end being the feed inlet 3 and the other end being the feed outlet 4, at which time the outer and inner drums 5 and 6 will provide a supporting location for the screw-down drum 9. Thus, materials such as powder materials enter the spiral descending cylinder 9 from the feeding inlet 3 under the drive of wind power, then spirally move downwards, and spirally enter the silo from the feeding outlet 4 and spirally drop the materials.
Further, in order to make the material spirally descending in the spiral descending cylinder 9 drop in the whole circumferential direction as much as possible, preferably, as shown in fig. 5, a plurality of discharging notches 10 are formed on the bottom cylinder wall of the spiral descending cylinder 9 and are arranged at intervals along the spiral extending direction, and the central axes of the discharging notches 10 are arranged obliquely along the spiral direction. In the process that materials such as powder materials are driven by wind power to move downwards spirally along the spiral descending cylinder 9, the materials enter the silo from the discharging notches 10 in a spiral mode and fall.
Of course, in the silo of the present invention, the outer cylinder 5 and the inner cylinder 6 may be disposed at any suitable position of the silo, for example, the upper end of the side wall of the silo is inwardly narrowed to form a stepped portion on which the outer cylinder 5 and the inner cylinder 6 can be disposed, or the outer cylinder 5 and the inner cylinder 6 are disposed at the center position of the silo top wall 11 of the silo (as shown in fig. 1, 2, 8, 9) or at the edge position of the silo top wall 11 (as shown in fig. 6, 7);
and/or the presence of a gas in the gas,
of course, dust generated from the falling material in the silo needs to be removed, and therefore, the silo of the present invention further includes a dust collector 12, wherein the dust collector 12 is disposed in the inner cylinder 6 and protrudes from the end cap 7 as shown in fig. 8. Thus, the dust separator 12 can be installed by making full use of the internal space of the inner tube 6. Of course, the dust separator 12 may be provided at other suitable locations, for example, on the top wall of the silo and offset from the cyclone feed cylinder 2.
Furthermore, in a third structural form of the cyclone feed cylinder 2, referring to fig. 5, the cyclone feed cylinder 2 is a screw-down cylinder 9, wherein the feed passage is formed by an internal passage of the screw-down cylinder 9, and one end of the screw-down cylinder 9 is the feed inlet 3 and the other end is the feed outlet 4. Thus, materials such as powder materials enter the spiral descending cylinder 9 from the feeding inlet 3 under the drive of wind power, then spirally move downwards, and spirally enter the silo from the feeding outlet 4 and spirally drop the materials.
Further, in order to make the material spirally descending in the spiral descending cylinder 9 drop in the whole circumferential direction as much as possible, preferably, as shown in fig. 5, a plurality of discharging notches 10 are formed on the bottom cylinder wall of the spiral descending cylinder 9 and are arranged at intervals along the spiral extending direction, and the central axes of the discharging notches 10 are arranged obliquely along the spiral direction. In the process that materials such as powder materials are driven by wind power to move downwards spirally along the spiral descending cylinder 9, the materials enter the silo from the discharging notches 10 in a spiral mode and fall.
In addition, in the fourth structural form of the cyclone feeding cylinder 2, as shown in fig. 10 and 11, the cyclone feeding cylinder may be formed by using a silo side wall of a silo, that is, an inner cylinder 6 with two open ends is provided in the silo, an annular blanking space 8 with an open lower end is formed between the inner cylinder 6 and the silo side wall 13 of the silo, the annular blanking space 8 is a feeding channel, and a feeding inlet 3 is formed on a silo side wall portion of the silo side wall 13 corresponding to the annular blanking space 8. Thus, the material is discharged in the annular discharge space 8 in the same manner as described above, and the invention will not be redundantly described here. Meanwhile, as shown in fig. 10, the structure can obviously shorten the horizontal pipe section of the feeding pipe, thereby shortening the material conveying path and reducing the feeding air pressure required by the charging bucket vehicle.
Furthermore, as shown in figures 1, 2 and 6-11, the silo of the present invention is externally provided with a feed pipe comprising a vertical pipe section 14 and a horizontal pipe section 15, wherein the horizontal pipe section 15 is connected to the feed inlet 3 in a tangential direction to the cyclone feed cylinder 2. In this way, the horizontal pipe section 15 can be directly connected to the feed inlet 3, so that the bending angle is reduced by 90 ° compared to the prior art, i.e. the powder of the powder tanker is transported upwards through the vertical pipe section of the feed pipe and then through the curved transition angle section in the horizontal pipe section through the feed pipe, from the feed inlet tangentially into the feed channel.
And/or, as shown in fig. 1, 6, 8 and 10, in the axial direction of the cyclone feeding cylinder 2, that is, the height direction of the drawing, the feeding inlet 3 is formed at the middle position of the cyclone feeding cylinder 2, so that, in the case that the annular blanking space 8 with an open lower end forms a feeding channel, the feeding inlet 3 is formed at the middle position, so that the upper space of the annular blanking space 8 at the feeding inlet forms a material diffusion zone, so that a part of the material entering the annular blanking space 8 tangentially from the feeding inlet 3 can move to the upper space under the driving of wind power, so that the part of the material moves along the circumferential direction of the annular blanking space 8 as much as possible and falls under the action of gravity, so that the material falls from the whole circumferential open lower end of the annular blanking space 8 as much as possible.
In a second aspect, the present invention provides a silo feeding method comprising: the materials are driven by wind power to be horizontally conveyed and enter the feeding channel in the cyclone feeding cylinder in the direction tangential to the cyclone feeding cylinder 2, are conveyed downwards in the circumferential direction through the feeding channel and are screwed into the silo in the circumferential direction.
Therefore, as shown above, materials conveyed by wind power are conveyed downwards in the circumferential direction in the feeding channel, so that the materials such as powder can tangentially come out from the feeding outlet in a rotating manner, the initial speed direction of the materials entering the silo is changed from vertical downward of the existing silo to the side wall of the silo, the initial speed direction of the powder when the powder enters the silo is changed, and the circumferential downward movement of the powder in the feeding channel reduces the initial speed of the powder when the powder enters the silo, so that the powder dust amount generated in the falling process of the powder is reduced, and the dust removal pressure of the silo, such as the dust removal pressure of a dust remover arranged on the silo, is further reduced.
Furthermore, the materials are driven by wind power to be vertically conveyed upwards to the upper part of the silo and then horizontally conveyed into the feeding channel, so that compared with the prior art, a 90-degree bending angle is reduced, namely, powder of the powder tanker is conveyed upwards through a vertical pipe section of the feeding pipe and then conveyed through a horizontal pipe section of the feeding pipe through an arc transition angle section and enters the feeding channel from a feeding inlet tangentially.
In a third aspect, the present invention provides a concrete mixing apparatus, such as a concrete mixing plant or a concrete mixing plant, comprising a silo as defined in any one of the first aspects above; alternatively, the concrete mixing apparatus may be capable of feeding a silo of the concrete mixing apparatus with a silo feeding method as described in any of the second aspects above.
Thus, as described above, the overall performance of the concrete mixing apparatus is improved.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.
It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. The invention is not described in detail in order to avoid unnecessary repetition.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.
Claims (14)
1. A silo is characterized by comprising a material accommodating cavity (1) enclosed by a silo wall, wherein a cyclone feeding cylinder (2) is arranged on the silo wall, the cyclone feeding cylinder (2) comprises a feeding channel, a feeding inlet (3) at one end of the feeding channel is communicated with the outside of the silo, a feeding outlet (4) at the other end of the feeding channel is communicated with the material accommodating cavity (1),
the feed channel is structured such that: so that the material conveyed by the wind moves downwards in the feed channel and enters the material accommodating cavity (1) from the feed outlet (4) along the circumferential direction.
2. A silo as claimed in claim 1, characterized in that the feeding inlet (3) is arranged tangentially to the outer circumferential surface of the cyclone feeding cylinder (2);
and/or the presence of a gas in the gas,
the feeding outlet (4) extends along the circumferential direction of the cyclone feeding cylinder (2).
3. A silo as claimed in claim 1, wherein the cyclone feed cylinder (2) comprises an outer cylinder (5) and an inner cylinder (6) arranged vertically, wherein,
one end of the outer cylinder (5) is formed into an open end, the other end of the outer cylinder is formed into a closed end through an end cover (7), the inner cylinder (6) is positioned in the outer cylinder (5), one end of the inner cylinder (6) is connected to the end cover (7), an annular blanking space (8) with an open lower end is formed between the outer cylinder (5) and the inner cylinder (6), and the annular blanking space (8) is the feeding channel;
wherein,
the closed end of the outer cylinder (5) is positioned outside the silo, the side wall of the cylinder section of the outer cylinder (5) positioned outside the silo is provided with the feeding inlet (3), and the open end of the outer cylinder (5) is positioned in the material accommodating cavity (1).
4. A silo as claimed in claim 3, characterized in that the annular blanking space (8) is circular or oval.
5. A silo as claimed in claim 3, characterised in that the cyclone feed cylinder (2) comprises a screw descent cylinder (9) arranged in the annular blanking space (8), wherein the feed channel is formed by an internal channel of the screw descent cylinder (9), one end of the screw descent cylinder (9) being the feed inlet (3) and the other end being the feed outlet (4).
6. A silo as claimed in claim 5, characterized in that the spiral descending cylinder (9) is provided with a plurality of discharging cuts (10) on the bottom wall at intervals along the spiral extending direction, and the central axes of the discharging cuts (10) are obliquely arranged along the spiral direction.
7. A silo as claimed in claim 3, characterized in that the outer and inner cylinders (5, 6) are arranged at a central or edge position of the silo top wall (11) of the silo;
and/or the presence of a gas in the gas,
the silo comprises a dust collector (12), wherein the dust collector (12) is arranged in the inner barrel (6) and extends out of the end cover (7).
8. A silo as claimed in claim 1, characterised in that the cyclone feed cylinder (2) is a screw-down cylinder (9), wherein the feed channel is formed by an internal channel of the screw-down cylinder (9), one end of the screw-down cylinder (9) being the feed inlet (3) and the other end being the feed outlet (4).
9. A silo as claimed in claim 8, characterized in that the spiral descending cylinder (9) is provided with a plurality of discharging cuts (10) on the bottom wall at intervals along the spiral extending direction, and the central axes of the discharging cuts (10) are obliquely arranged along the spiral direction.
10. A silo as claimed in claim 1, wherein an inner cylinder (6) with two open ends is arranged in the silo, an annular blanking space (8) with an open lower end is formed between the inner cylinder (6) and a silo side wall (13) of the silo, the annular blanking space (8) is the feeding channel, and the silo side wall (13) corresponding to the annular blanking space (8) is provided with the feeding inlet (3).
11. A silo as claimed in any one of claims 1 to 10 wherein the silo is externally provided with a feed pipe comprising an upright pipe section (14) and a horizontal pipe section (15), wherein the horizontal pipe section (15) is connected to the feed inlet (3) in a tangential direction to the cyclone feed cylinder (2);
and/or the presence of a gas in the gas,
the feeding inlet (3) is formed in the middle position of the cyclone feeding cylinder (2) in the axial direction of the cyclone feeding cylinder (2).
12. A silo feeding method, comprising:
the materials are driven by wind power to be horizontally conveyed and enter the feeding channel in the cyclone feeding cylinder in the direction tangential to the cyclone feeding cylinder (2), are conveyed downwards in the circumferential direction through the feeding channel and are screwed into the silo in the circumferential direction.
13. A method as claimed in claim 12, wherein the wind forces the material vertically upwards into the upper part of the silo and then horizontally.
14. A concrete mixing apparatus, characterized in that it comprises a silo according to any one of claims 1 to 11;
or,
the concrete mixing plant is capable of feeding a silo of the concrete mixing plant with the silo feeding method of claim 12 or 13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN202704591U (en) * | 2012-08-10 | 2013-01-30 | 中联重科股份有限公司 | Feeding device and powder bin comprising same |
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| CN204052103U (en) * | 2014-07-25 | 2014-12-31 | 三峡大学 | Screening plant |
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| CN206427752U (en) * | 2017-01-10 | 2017-08-22 | 长安大学 | Powder cabin powder carry pipeline discharge port screw unloading device |
| CN207576855U (en) * | 2017-11-01 | 2018-07-06 | 无锡宇能选煤机械厂 | The spiral screen of included buffer-type feeding channel |
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| US20110011698A1 (en) * | 2009-07-14 | 2011-01-20 | Mcneilus Truck And Manufacturing, Inc. | Swinging Chute Linkage Assembly |
| CN202704591U (en) * | 2012-08-10 | 2013-01-30 | 中联重科股份有限公司 | Feeding device and powder bin comprising same |
| CN202876601U (en) * | 2012-10-22 | 2013-04-17 | 亚普汽车部件股份有限公司 | Dust collection device with secondary dust collection function |
| CN204052103U (en) * | 2014-07-25 | 2014-12-31 | 三峡大学 | Screening plant |
| CN206427752U (en) * | 2017-01-10 | 2017-08-22 | 长安大学 | Powder cabin powder carry pipeline discharge port screw unloading device |
| CN107081227A (en) * | 2017-05-08 | 2017-08-22 | 哈尔滨工程大学 | A kind of particle removes cyclone separation system |
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