CN113636228B - Arch breaking and blockage removing device for material sending tank and arch breaking method - Google Patents
Arch breaking and blockage removing device for material sending tank and arch breaking method Download PDFInfo
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- CN113636228B CN113636228B CN202110988310.9A CN202110988310A CN113636228B CN 113636228 B CN113636228 B CN 113636228B CN 202110988310 A CN202110988310 A CN 202110988310A CN 113636228 B CN113636228 B CN 113636228B
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- 239000000463 material Substances 0.000 title claims abstract description 62
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000007664 blowing Methods 0.000 claims abstract description 76
- 238000004140 cleaning Methods 0.000 claims description 19
- 239000000428 dust Substances 0.000 claims description 11
- 238000007599 discharging Methods 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 8
- 239000000843 powder Substances 0.000 claims description 4
- 230000014759 maintenance of location Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 9
- 238000003860 storage Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000003749 cleanliness Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D88/00—Large containers
- B65D88/54—Large containers characterised by means facilitating filling or emptying
- B65D88/64—Large containers characterised by means facilitating filling or emptying preventing bridge formation
- B65D88/70—Large containers characterised by means facilitating filling or emptying preventing bridge formation using fluid jets
- B65D88/703—Air blowing devices, i.e. devices for the sudden introduction of compressed air into the container
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D90/00—Component parts, details or accessories for large containers
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
- Air Transport Of Granular Materials (AREA)
Abstract
The invention provides an arch breaking and blockage removing device and an arch breaking method for a material delivery tank, wherein the device comprises a rotary air cover, a fixed air cover, an air chamber, a rotating shaft, a stepping motor, an air supply system and a control system; the fixed fan cover is sleeved outside the rotary fan cover, the inner wall surface of the fixed fan cover is matched with the outer wall surface of the rotary fan cover in shape and size, the rotary fan cover and the central line of the fixed fan cover are on the same straight line, rotary blowing air holes are formed in the side wall of the rotary fan cover, fixed blowing air holes which are the same as the rotary blowing air holes in number and size are formed in the side wall of the fixed fan cover, the rotary blowing air holes and the fixed blowing air holes are in coincidence positions in the rotary motion track of the rotary fan cover, the rotary fan cover is driven to rotate by the operation of the stepping motor, intermittent coincidence of the blowing air holes is achieved, when the blowing air holes are coincident, strong pulse air can be sprayed to arch materials in the sending tank, and the problems of arch-forming bridges and wall-sticking retention in the material sending tank are effectively solved.
Description
Technical Field
The invention relates to the technical field of loosening and arch breaking of easily-bonded materials, in particular to an arch breaking and blockage removing device and an arch breaking method for a material delivery tank.
Background
In the sending process of the caking materials, the phenomena of material arching, bridging, wall sticking, detention and the like often occur, the operation quality and the production efficiency in the sending process are seriously influenced, and potential safety hazards exist. In order to solve the technical problem, an arch breaking and blockage removing device can be arranged on the inner wall of the material sending tank.
Chinese patent CN213567723U provides a device for breaking arch of powder in a storage bin, the invention is provided with a high pressure compressed air nozzle inside the storage bin, the nozzle is connected with an air inlet pipe and an air compression device in sequence, the air inlet pipe outside the storage bin is provided with an electromagnetic valve, and the intermittent input of compressed air is controlled to break the arch by opening and closing the electromagnetic valve. However, frequent switching of the solenoid valve affects the service life thereof, which is disadvantageous for long-term use, so that the reliability of the device is limited.
Chinese patent CN112112987A provides an arch breaking air valve, compressed air is introduced into a valve body cavity, an actuating cylinder rapidly pushes out a push rod based on the difference between the internal pressure and the external pressure of the valve body, a gap is formed between a push head and an ejection port, and the compressed air in the valve body cavity is ejected along the gap to realize arch breaking. However, it is difficult to control the pulse interval and pulse width of the pulsating wind in accordance with the expectation and effect of the arch breaking.
The arch breaking method in the prior art has poor arch breaking effect, the arch breaking device is difficult to realize reliable and controllable loosening arch breaking, and the pulse interval and the pulse width of the pulse wind cannot be adjusted in time according to the arch breaking effect.
Therefore, a stable, reliable, simple and controllable arch breaking blockage removing device and a method thereof need to be developed.
Disclosure of Invention
The invention aims to provide an arch breaking and blockage removing device and an arch breaking method for a material sending tank, aiming at the problems that the arch breaking effect is poor and the pulse air cannot be controlled in time according to the arch breaking effect in the prior art.
In order to achieve the above purpose, the invention provides the following technical scheme:
an arch breaking and blockage removing device for a material delivery tank comprises a rotary air cover, a fixed air cover, an air chamber, a rotating shaft, a stepping motor, an air supply system and a control system;
the fixed fan cover is sleeved outside the rotary fan cover, the inner wall surface of the fixed fan cover is matched with the outer wall surface of the rotary fan cover in shape and size, the central lines of the rotary fan cover and the fixed fan cover are on the same straight line, rotary blowing air holes are formed in the side wall of the rotary fan cover, fixed blowing air holes which are the same as the rotary blowing air holes in number and size are formed in the side wall of the fixed fan cover, and the rotary blowing air holes and the fixed blowing air holes are overlapped in the rotary motion track of the rotary fan cover;
the air chamber is arranged below the fixed air cover and the rotary air cover, an air chamber bottom plate is arranged at the bottom of the air chamber, the air chamber bottom plate seals a cavity formed by the fixed air cover, the rotary air cover and the air chamber, the rotary shaft penetrates through the air chamber bottom plate to be connected with the rotary air cover, one end of the rotary shaft, which is exposed out of the air chamber bottom plate, is connected with the stepping motor, and the center line of the stepping motor, the center line of the rotary shaft and the center line of the rotary air cover are on the same straight line;
the air chamber bottom plate is provided with an air supply opening, the air supply system supplies air to the cavity through the air supply opening, and the control system controls the rotating speed of the stepping motor.
The rotary fan cover and the fixed fan cover are respectively arranged, the same number of blowing air holes with the same size are formed in the rotary fan cover and the fixed fan cover, the stepping motor works to drive the rotary fan cover to rotate, and when the blowing air holes are overlapped, strong pulse air can be sprayed to arch materials in the material sending tank, so that the problems of arch-forming frame bridges and wall-sticking retention in the material sending tank are effectively solved.
Furthermore, the rotating shaft is provided with a dynamic sealing device at the perforated position of the bottom plate of the air chamber. So as to ensure the tightness of the cavity.
Furthermore, the air supply system comprises an air supply pipe and an air compressor, and the air supply port is connected with the air compressor through the air supply pipe. The air compressor conveys compressed air into the cavity through the air supply pipe and the air supply port.
Further, the control system comprises a variable frequency controller, and the variable frequency controller is connected with the stepping motor.
The variable frequency controller controls the rotating speed of the stepping motor, can adjust the dislocation and coincidence frequency of the blowing air holes, combines the arch breaking and blockage removing effect in the sending tank, adjusts the pulse width and pulse interval of the pulse blowing air, and is stable, reliable, simple and controllable.
Furthermore, the arch-breaking blockage-clearing device for the material sending tank further comprises a dust-clearing system, wherein the dust-clearing system comprises a dust-clearing opening arranged on the bottom plate of the air chamber, a dust discharging pipe and an electromagnetic valve arranged on the dust discharging pipe, and the dust-clearing opening is connected with the dust discharging pipe.
Arranging an ash cleaning port, an electromagnetic valve and an ash discharging pipe, opening the electromagnetic valve according to preset time intervals, discharging partial compressed air carrying materials leaked in an air chamber to the outside of the device through the ash cleaning port, and realizing the function of online and automatic ash cleaning; secondly, the opening duration and the opening and closing interval of the electromagnetic valve can be set according to the cleanliness of the cavity.
Furthermore, the number of the rotary blowing air holes is 4-24, and the rotary blowing air holes are divided into 1-3 circles and are uniformly distributed on the side wall of the rotary air cover.
Furthermore, a first flange is arranged on the outer wall of the fixed air cover, a second flange is arranged on the outer wall of the air chamber, and the arch breaking device for the material delivery tank is hermetically arranged on the wall of the material delivery tank through the first flange and the second flange. The device is convenient to be sealed and fixed with the material sending tank.
An arch breaking method based on an arch breaking and blockage removing device for a material delivery tank comprises the following steps:
s1, connecting an arch breaking and blockage removing device with a material sending tank in a sealing manner through a first flange and a second flange;
s2, starting a stepping motor, wherein the stepping motor drives the rotary fan cover to rotate through a rotating shaft;
s3, starting an air compressor, and conveying compressed air into a cavity formed by the fixed air cover, the rotary air cover and the air chamber through an air supply port by the air compressor;
s4, when the rotary blowing air hole and the fixed blowing air hole are staggered, the inner wall of the fixed fan cover blocks the rotary blowing air hole, the cavity is completely sealed, and compressed air is temporarily stored in the cavity in a pressurized manner;
s5, when the rotary blowing air holes coincide with the fixed blowing air holes, compressed air in the cavity rushes towards the arch-forming materials through the overlapped blowing air holes to break the arch;
and S6, in the rotating process of the rotary fan cover, the rotary blowing air holes and the fixed blowing air holes are intermittently overlapped according to a fixed frequency, so that the pulse type release of the compressed air is realized.
Furthermore, the frequency conversion controller is adjusted to control the stepping motor to adjust the rotating speed of the rotating fan cover, so that the overlapping frequency of the rotating blowing air hole and the fixed blowing air hole is controlled.
Furthermore, an electromagnetic valve of the ash removal system is opened according to a preset time interval, and part of the compressed air carries powder leaked from the air chamber 9 and is discharged out of the arch breaking and blockage removing device through an ash removal port.
Has the advantages that:
from the above technical solutions, the technical solution of the present invention provides
1. The rotary fan cover and the fixed fan cover are respectively arranged, the same number of blowing air holes with the same size are formed in the rotary fan cover and the fixed fan cover, the stepping motor works to drive the rotary fan cover to rotate, when the blowing air holes are overlapped, intense pulse air can be sprayed to arch materials in the material sending tank, the rotating speed of the stepping motor is controlled, the dislocation and overlapping frequency of the blowing air holes can be adjusted, the pulse width and the pulse interval of blowing air are changed, and the problems of arching frame bridging and wall sticking retention in the material sending tank are effectively solved;
2. compared with the arch breaking purpose achieved by means of cylinder expansion and contraction in the prior art and the arch breaking technology based on pressure difference driving, the arch breaking device is high in stability and reliability, simple and controllable;
3. the invention is provided with an ash cleaning port, an electromagnetic valve and an ash discharge pipe, wherein the electromagnetic valve is opened periodically according to the setting, part of compressed air carries the materials leaked in an air chamber and is discharged to the outside of the device through the ash cleaning port, thereby realizing the function of online and automatic ash cleaning; secondly, the opening duration and the opening and closing interval of the electromagnetic valve can be set according to the cleaning degree in the device.
It should be understood that all combinations of the foregoing concepts and additional concepts described in greater detail below can be considered as part of the inventive subject matter of this disclosure unless such concepts are mutually inconsistent.
The foregoing and other aspects, embodiments and features of the present teachings will be more fully understood from the following description taken in conjunction with the accompanying drawings. Additional aspects of the present invention, such as features and/or advantages of exemplary embodiments, will be apparent from the description which follows, or may be learned by practice of specific embodiments in accordance with the teachings of the present invention.
Drawings
The figures are not intended to be drawn to scale. In the drawings, each identical or nearly identical component that is illustrated in various figures may be represented by a like numeral. For purposes of clarity, not every component may be labeled in every drawing. Embodiments of various aspects of the present invention will now be described, by way of example, with reference to the accompanying drawings, in which:
FIG. 1 is a schematic structural view of an arch breaking and blockage removing device for a material delivery tank of the invention;
FIG. 2 is a schematic view of an arch breaking and blockage removing device system for a material delivery tank according to the invention;
FIG. 3 is a schematic view of a rotary fan cover of the arch breaking and blockage removing device for the material delivery tank of the present invention;
FIG. 4 is a cross-sectional view of the arch breaking and blockage removing device for the material delivery tank of the invention;
fig. 5 is a schematic view of a fixed fan cover of the arch breaking and blockage removing device for the material delivery tank.
Reference signs mean:
1. the device comprises a fixed air cover, 2 parts of a rotary air cover, 301 parts of a rotary blowing air hole, 302 parts of a fixed blowing air hole, 4 parts of a first flange, 5 parts of a rotating shaft, 6 parts of a second flange, 7 parts of an air chamber bottom plate, 8 parts of a dynamic sealing device, 9 parts of an air chamber, 10 parts of an ash cleaning port, 11 parts of an air supply port, 12 parts of an air supply pipe, 13 parts of an ash discharge pipe, 14 parts of an electromagnetic valve, 15 parts of a stepping motor, 16 parts of a variable frequency controller, 17 parts of an air compressor, 18 parts of a material delivery tank bin wall.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the embodiments of the present invention. It should be apparent that the described embodiments are only some of the embodiments of the present invention, and not all of them. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention without inventive step, are within the scope of protection of the invention. Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs.
The use of "first," "second," and similar terms in the description and claims of the present application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. Similarly, the singular forms "a," "an," and "the" do not denote a limitation of quantity, but rather denote the presence of at least one, unless the context clearly dictates otherwise. The terms "comprises" or "comprising," and the like, mean that the elements or components listed in the preceding list of elements or components include the features, integers, steps, operations, elements and/or components listed in the following list of elements or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and/or groups thereof. "upper", "lower", "left", "right", and the like are used only to indicate relative positional relationships, and when the absolute position of the object to be described is changed, the relative positional relationships may also be changed accordingly.
The invention aims at solving the problems that the phenomena of material arching, bridging, wall sticking, detention and the like frequently occur in the sending process of cohesive materials, the operation quality and the production efficiency in the sending process are seriously influenced, and potential safety hazards exist. The arch breaking method in the prior art has poor arch breaking effect, the arch breaking device is difficult to realize reliable and controllable loosening arch breaking, and the pulse interval and the pulse width of the pulse wind cannot be adjusted in time according to the arch breaking effect.
The invention has the conception that the rotary fan cover and the fixed fan cover are respectively arranged, the rotary fan cover and the fixed fan cover are provided with the same number of blowing air holes with the same size, the stepping motor works to drive the rotary fan cover to rotate, when the blowing air holes are overlapped, the strong pulse air can be sprayed to the arch materials in the material sending tank, in addition, the rotating speed of the stepping motor is controlled, the dislocation and overlapping frequency of the blowing air holes can be adjusted, the pulse width and the pulse interval of the blowing air are changed, and the problems of arch-forming frame bridges and wall sticking detention in the material sending tank are effectively solved.
Examples
As shown in the attached drawing, the arch breaking and blockage removing device for the material delivery tank comprises a rotary air cover 2, a fixed air cover 1, an air chamber 9, a rotating shaft 5, a stepping motor 15, an air supply system and a control system;
the fixed fan cover 1 is sleeved outside the rotary fan cover 2, the inner wall surface of the fixed fan cover 1 is matched with the outer wall surface of the rotary fan cover 2 in shape and size, the central lines of the rotary fan cover 2 and the fixed fan cover 1 are on the same straight line, the side wall of the rotary fan cover 2 is provided with rotary blowing air holes 301, the side wall of the fixed fan cover 1 is provided with fixed blowing air holes 302 which are the same as the rotary blowing air holes 301 in number and size, and the rotary blowing air holes 301 and the fixed blowing air holes 302 have coincident positions in the rotary motion track of the rotary fan cover 2;
the air chamber 9 is arranged below the fixed air cover 1 and the rotary air cover 2, an air chamber bottom plate 7 is arranged at the bottom of the air chamber 9, the air chamber bottom plate 7 seals a cavity formed by the fixed air cover 1, the rotary air cover 2 and the air chamber 9, the rotary shaft 5 penetrates through the air chamber bottom plate 7 and is connected with the rotary air cover 2, one end of the rotary shaft 5, which is exposed out of the air chamber bottom plate 7, is connected with the stepping motor 15, and the central line of the stepping motor 15, the central line of the rotary shaft 5 and the central line of the rotary air cover 2 are on the same straight line;
the air chamber bottom plate 7 is provided with an air supply port 11, the air supply system supplies air to the cavity through the air supply port 11, and the control system controls the rotating speed of the stepping motor 15.
According to the invention, the rotary fan cover 2 and the fixed fan cover 1 are respectively arranged, the same number of blowing air holes with the same size are formed in the rotary fan cover 2 and the fixed fan cover 1, the stepping motor 15 works to drive the rotary fan cover 2 to rotate, and when the blowing air holes are overlapped, strong pulse air can be sprayed to arch materials in the material sending tank, so that the problems of arch-forming bridges and wall-sticking retention in the material sending tank are effectively solved.
Specifically, the rotating shaft 5 is provided with a dynamic sealing device 8 at the perforated position of the air chamber bottom plate 7 to ensure the sealing performance of the cavity.
Specifically, the air supply system comprises an air supply pipe 12 and an air compressor 17, and the air supply port 11 is connected with the air compressor 17 through the air supply pipe 12.
Specifically, the control system comprises a variable frequency controller 16, and the variable frequency controller 16 is connected with the stepping motor 15.
The variable frequency controller 16 controls the rotating speed of the stepping motor 15, can adjust the dislocation and coincidence frequency of the blowing air holes, combines the arch breaking and blockage removing effect in the sending tank, adjusts the pulse width and pulse interval of the pulse blowing air, and is stable, reliable, simple and controllable.
Specifically, the arch breaking and blockage removing device for the material delivery tank further comprises an ash removal system, the ash removal system comprises an ash removal port 10 arranged on the air chamber bottom plate 7, an ash discharge pipe 13 and an electromagnetic valve 14 arranged on the ash discharge pipe 13, and the ash removal port 10 is connected with the ash discharge pipe 13.
Arranging an ash cleaning port 10, an electromagnetic valve 14 and an ash discharging pipe 13, opening the electromagnetic valve 14 according to preset time intervals, discharging partial compressed air carrying materials leaked in an air chamber 9 to the outside of the device through the ash cleaning port 10, and realizing the function of online and automatic ash cleaning; secondly, the opening duration and the opening and closing interval of the electromagnetic valve 14 can be set according to the cleanness degree of the cavity.
Specifically, the number of the rotary blowing air holes 301 is 4-24, and the rotary blowing air holes are divided into 1-3 circles and evenly distributed on the side wall of the rotary fan cover 2.
Specifically, the outer wall of the fixed air cover 1 is provided with a first flange 4, the outer wall of the air chamber 9 is provided with a second flange 6, and the arch breaking device for the material delivery tank is hermetically installed on the wall 18 of the material delivery tank through the first flange 4 and the second flange 6. The device is convenient to be sealed and fixed with the material sending tank.
An arch breaking method based on an arch breaking and blockage removing device for a material delivery tank comprises the following steps:
s1, connecting an arch breaking and blockage removing device with a material sending tank in a sealing manner through a first flange 4 and a second flange 6;
s2, starting the stepping motor 15, and driving the rotary fan cover 2 to rotate through the rotary shaft 5 by the stepping motor 15;
s3, starting the air compressor 17, and conveying compressed air to a cavity formed by the fixed air cover 1, the rotary air cover 2 and the air chamber 9 through the air supply port 11 by the air compressor 17;
s4, when the rotary blowing air hole 301 and the fixed blowing air hole 302 are staggered, the inner wall of the fixed fan cover 1 blocks the rotary blowing air hole 301, the cavity is completely sealed, and compressed air is temporarily stored in the cavity in a pressurized manner;
s5, when the rotary blowing air holes 301 are overlapped with the fixed blowing air holes 302, compressed air in the cavity rushes towards the arch-formed materials through the overlapped blowing air holes to break the arch;
s6, in the rotating process of the rotary fan cover 2, the rotary blowing air holes 301 and the fixed blowing air holes 302 are intermittently overlapped according to a fixed frequency, and therefore pulse type release of compressed air is achieved.
Specifically, the frequency conversion controller 16 is adjusted to control the stepping motor 15 to adjust the rotation speed of the rotating fan housing 2, thereby controlling the overlapping frequency of the rotating blowing air hole 301 and the fixed blowing air hole 302.
Specifically, the electromagnetic valve 14 of the ash removal system is opened according to a preset time interval, and part of the compressed air carries powder leaked from the air chamber 9 and is discharged out of the arch breaking and blockage removing device through the ash removal port 10.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the invention. Therefore, the protection scope of the present invention should be determined by the appended claims.
Claims (10)
1. The utility model provides a material is sent jar and is cleared up stifled device with broken arch which characterized in that: the air conditioner comprises a rotary air cover, a fixed air cover, an air chamber, a rotating shaft, a stepping motor, an air supply system and a control system;
the fixed fan cover is sleeved outside the rotary fan cover, the inner wall surface of the fixed fan cover is matched with the outer wall surface of the rotary fan cover in shape and size, the central lines of the rotary fan cover and the fixed fan cover are on the same straight line, rotary blowing air holes are formed in the side wall of the rotary fan cover, fixed blowing air holes which are the same as the rotary blowing air holes in number and size are formed in the side wall of the fixed fan cover, and the rotary blowing air holes and the fixed blowing air holes are overlapped in the rotary motion track of the rotary fan cover;
the air chamber is arranged below the fixed air cover and the rotary air cover, an air chamber bottom plate is arranged at the bottom of the air chamber, the air chamber bottom plate seals a cavity formed by the fixed air cover, the rotary air cover and the air chamber, the rotating shaft penetrates through the air chamber bottom plate to be connected with the rotary air cover, one end of the rotating shaft, which is exposed out of the air chamber bottom plate, is connected with the stepping motor, and the center line of the stepping motor, the center line of the rotating shaft and the center line of the rotary air cover are on the same straight line;
the air chamber bottom plate is provided with an air supply opening, the air supply system supplies air to the cavity through the air supply opening, and the control system controls the rotating speed of the stepping motor.
2. The material delivery tank arch-breaking and blockage-removing device as claimed in claim 1, wherein: the rotating shaft is provided with a dynamic sealing device at the perforation of the bottom plate of the air chamber.
3. The material delivery tank arch-breaking and blockage-removing device as claimed in claim 1, wherein: the air supply system comprises an air supply pipe and an air compressor, and the air supply port is connected with the air compressor through the air supply pipe.
4. An arch breaking and blockage removing device for a material delivery tank as claimed in claim 3, wherein: the control system comprises a variable frequency controller, and the variable frequency controller is connected with the stepping motor.
5. The material delivery tank arch-breaking and blockage-removing device as claimed in claim 4, wherein: the air chamber bottom plate dust cleaning device is characterized by further comprising a dust cleaning system, wherein the dust cleaning system comprises a dust cleaning port arranged on the air chamber bottom plate, a dust discharging pipe and an electromagnetic valve arranged on the dust discharging pipe, and the dust cleaning port is connected with the dust discharging pipe.
6. An arch breaking and blockage removing device for a material delivery tank as claimed in claim 1, wherein: the number of the rotary blowing air holes is 4-24, and the rotary blowing air holes are divided into 1-3 circles and are uniformly distributed on the side wall of the rotary air cover.
7. An arch breaking and blockage removing device for a material delivery tank as recited in claim 5, wherein: the outer wall of the fixed air cover is provided with a first flange, the outer wall of the air chamber is provided with a second flange, and the arch breaking device for the material delivery tank is hermetically arranged on the wall of the material delivery tank through the first flange and the second flange.
8. An arch breaking method based on the arch breaking and blockage removing device for the material delivery tank, which is characterized in that: the method comprises the following steps:
s1, connecting an arch breaking and blockage removing device with a material sending tank in a sealing manner through a first flange and a second flange;
s2, starting a stepping motor, wherein the stepping motor drives a rotary fan cover to rotate through a rotating shaft;
s3, starting an air compressor, and conveying compressed air to a cavity formed by the fixed air cover, the rotary air cover and the air chamber through an air supply port by the air compressor;
s4, when the rotary blowing air hole and the fixed blowing air hole are staggered, the inner wall of the fixed fan cover blocks the rotary blowing air hole, the cavity is completely sealed, and compressed air is temporarily pressurized and stored in the cavity;
s5, when the rotary blowing air holes coincide with the fixed blowing air holes, compressed air in the cavity rushes towards the arch-forming materials through the overlapped blowing air holes to break the arch;
and S6, in the rotating process of the rotary fan cover, the rotary blowing air holes and the fixed blowing air holes are intermittently overlapped according to a fixed frequency, so that the pulse type release of the compressed air is realized.
9. An arch breaking method according to claim 8, wherein: and adjusting the variable frequency controller, and controlling the stepping motor to adjust the rotating speed of the rotating fan cover so as to control the overlapping frequency of the rotating blowing air hole and the fixed blowing air hole.
10. An arch breaking method according to claim 8, wherein: the electromagnetic valve of the ash cleaning system is opened according to a preset time interval, and part of compressed air carries powder leaked from the air chamber and is discharged out of the arch breaking and blockage cleaning device through the ash cleaning port.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110988310.9A CN113636228B (en) | 2021-08-26 | 2021-08-26 | Arch breaking and blockage removing device for material sending tank and arch breaking method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110988310.9A CN113636228B (en) | 2021-08-26 | 2021-08-26 | Arch breaking and blockage removing device for material sending tank and arch breaking method |
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| CN113636228A CN113636228A (en) | 2021-11-12 |
| CN113636228B true CN113636228B (en) | 2023-02-24 |
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| CN117284649B (en) * | 2023-11-24 | 2024-01-30 | 江苏嘉旺建材科技有限公司 | Anti-blocking pulse pneumatic mechanism in cement silo |
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