CN220263871U - Arch breaking device for storage bin - Google Patents

Abstract

The utility model belongs to the technical field of material conveying, and particularly provides a bin arch breaking device which comprises a blowing pipe and a pulse valve, wherein the blowing pipe and the pulse valve are provided with a feeding channel penetrating through the blowing pipe vertically; four blowing pipes are arranged on the side wall of the storage bin body along the circumferential direction, and are distributed in a cross shape at the storage bin body; the pulse valve is arranged between the blowing pipe and an external high-pressure air source and is in signal communication with the controller. The utility model is convenient for realizing arch breaking when the material is conveyed through the bin, and avoids blocking the bin by the material.

Description

Arch breaking device for storage bin

Technical Field

The application belongs to the technical field of material conveying, and particularly provides a bin arch breaking device.

Background

The existing batching warehouse of the cement plant is generally composed of a raw material warehouse (limestone), a shale warehouse, mining and mineral separation waste residues, an iron powder warehouse, a clay warehouse and the like, and a blanking opening at the lower part of a circular bin is a cone, so that the blanking is not smooth due to the fact that the sectional area is reduced, and a covering bin is blocked. When the material changes, the granularity becomes small, the proportion of small particles becomes large, the viscosity of the material becomes large or the water content of the material increases, the blockage situation of the material bin is more serious, and the arching phenomenon can also occur.

The inventor knows that the blocking material can be generally discovered and then only sent to emergency treatment, the treatment time is long, the operation of a host is affected, and the material distribution is inaccurate due to material breakage, so that the product quality is unstable. The bin is knocked out and the bin is cleared out manually, so that the production efficiency and the production safety are affected, the labor intensity of workers is increased, and the intelligent upgrading and reconstruction of factories are not facilitated. The problem of arching of a general stock bin is difficult to solve, the problem of arching of the middle part is often not ideal because the material can only be manually knocked on the cylinder or is crashed from the upper part by using a heavy object, and the arching material can be removed after a long time.

Disclosure of Invention

The utility model aims to provide a bin arch breaking device which is used for solving at least one of the technical problems.

In order to solve the above-mentioned problems in the prior art, one or more embodiments of the present utility model provide a bin arch breaking device including a blowing pipe and a pulse valve; one end of the blowing pipe is positioned outside the bin body and can be communicated with an external high-pressure air source, and the other end of the blowing pipe can obliquely downwards pass through the through hole and is inserted into the feeding channel; four blowing pipes are arranged on the side wall of the storage bin body along the circumferential direction, vertically correspond to the four side edges of the upper end opening respectively and are distributed in a cross shape on the storage bin body; the pulse valve is arranged between the injection pipe and an external high-pressure air source and is in signal communication with the controller; after the controller receives the signals of unsmooth blanking, the controller can control the pulse valve to open for blowing arch breaking operation.

The beneficial effects of one or more of the technical schemes are as follows:

the anti-blocking blanking device of the storage bin can operate according to the detected material flow condition, and is started immediately when blanking is not smooth, and blocked materials are automatically cleaned, so that the blanking of the storage bin is stable, the stability of a production process is guaranteed, and the production efficiency is improved. The anti-blocking blanking device of the storage bin adopts a servo working mode, and is started only when blocking occurs, so that mechanical abrasion is reduced, and the service life of equipment is prolonged.

An arch breaking device is added at the upper part of the anti-blocking blanking device, so that the problem of arch formation of the material is solved. The arch breaking device of the stock bin is simple in structure, low in transformation cost, convenient to add at a position easy to arch, and capable of being started remotely or on site.

Specifically, a blowing pipe is arranged at the transition bin, one end of the blowing pipe is positioned outside the bin body and is communicated with an external high-pressure air source, and the other end of the blowing pipe is inserted into the feeding channel; when corresponding check out test set detects that the unloading is unsmooth or the material is blockked up and is made, can start anti-blocking unloader, clear up the material that blocks up for the feed bin unloading is stable, has guaranteed production technology's stability, has improved production efficiency. Specifically, this kind of structure setting can utilize the jetting pipe to send into high-pressure gas to the pay-off passageway is inside, and this high-pressure gas blows off the material of caking in the transition feed bin, and then avoids this position material to block up.

In this scheme, the quantity of blowing pipe is four, and four blowing pipes correspond upper end open-ended four sides respectively in vertical and be cross-shaped distribution in feed bin body department. The four blowing pipes in the arrangement mode play a disturbing role in the feeding channel, namely, the blowing pipes divide the feeding channel into a plurality of spaces, so that the probability that materials are blocked into a whole in the transition bin is reduced.

Drawings

Some embodiments of the present application are described below with reference to the accompanying drawings, in which:

FIG. 1 is a schematic perspective view of the overall structure of an embodiment of the present utility model;

FIG. 2 is an enlarged schematic view of the portion A of FIG. 1;

FIG. 3 is a partial cross-sectional view of a configuration of a lance and pulse valve in accordance with an embodiment of the present utility model;

fig. 4 is an enlarged schematic view of the structure of the portion B in fig. 3.

Reference numerals: 1. a stock bin body; 101. an upper end opening; 102. an opening at the lower end; 2. a blowing pipe; 201. an air outlet hole; 3. a pulse valve; 4. a flange assembly; 401. a first flange; 402. a second flange; 5. blowing the filter bag.

Detailed Description

It should be understood by those skilled in the art that the embodiments described below are only preferred embodiments of the present application, and do not represent that the present application can be realized only by the preferred embodiments, which are merely for explaining the technical principles of the present application, and are not intended to limit the scope of the present application. All other embodiments, which can be obtained by a person skilled in the art without any inventive effort, based on the preferred embodiments provided in the present application, shall still fall within the scope of protection of the present application.

It should be noted that, in the description of the present application, terms such as "center," "upper," "lower," "top," "bottom," "left," "right," "vertical," "horizontal," "inner," "outer," and the like indicate directional or positional relationships, and are based on the directional or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the devices or elements must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

As shown in fig. 1 to 4, an exemplary embodiment of the present application provides a bin arch breaking device, which includes a blowing pipe 2 and a pulse valve 3, a bin body 1 has a feeding channel penetrating through itself vertically, and a sidewall of the bin body 1 has a through hole; one end of the blowing pipe 2 is positioned outside the stock bin body 1 and can be communicated with an external high-pressure air source, and the other end of the blowing pipe can obliquely downwards pass through the through hole and be inserted into the feeding channel; four blowing pipes 2 are arranged on the side wall of the storage bin body 1, and the four blowing pipes 2 vertically correspond to the four side edges of the upper end opening 101 respectively and are distributed in a cross shape on the storage bin body 1; the pulse valve 3 is arranged between the blowing pipe 2 and an external high-pressure air source, and the pulse valve 3 is in signal communication with the controller. After the controller receives the signals of unsmooth blanking, the controller can control the pulse valve to open for arch breaking operation.

The anti-blocking blanking device of the storage bin adopts a servo working mode, and is started only when blocking occurs, so that mechanical abrasion is reduced, and the service life of equipment is prolonged.

In this embodiment, the signals of unsmooth blanking come from the corresponding blanking detection devices, and the specific model and installation mode thereof can adopt the prior art, which is not described herein.

In the scheme, the upper end opening of the stock bin body is square, the lower end opening is round, and the diameter of the lower end opening is smaller than the side length of the upper end opening; when the upper end opening is square, the feeding to the transition bin by adapting to a conveying line or a hopper and the like is facilitated; the lower opening is circular, is convenient for be connected with the toper hopper and cooperates, further retrains the direction of delivery of material to send into mixing stirring equipment with the material.

Specifically, the upper end opening 101 of the transition bin is used for receiving various raw materials output from the raw material hopper or the conveying line; the lower end of the transition bin is connected with the upper end of the conical hopper, and the lower end opening 102 of the conical hopper is opposite to the mixing and stirring equipment. The lower end opening 102 of the conical hopper has a corresponding shutter which effects opening and closing of the lower end opening 102 of the conical hopper. The embodiment is only improved for the excessive bin, and the specific structural form of the conical hopper is not repeated here.

Specifically, in the case where the upper end opening 101 of the bin body 1 is square and the lower end opening 102 is circular, the entire side wall of the bin body 1 is curved. Preferably, the upper end opening 101 of the bin body 1 is a square opening, and the center of the upper end opening 101 coincides with the center of the lower end opening 102 in a vertical projection. The diameter of the lower opening 102 is smaller than the side length of the upper opening 101

It can be seen that when the diameter of the lower end opening 102 is smaller than the side length of the upper end opening 101, the projection of the lower end opening 102 in the vertical direction is inside the upper end opening 101.

The part of the blowing pipe 2 inserted into the feeding channel is provided with a plurality of air outlet holes 201, and the air outlet holes 201 are arranged on the outer wall of the blowing pipe 2.

Specifically, four injection pipes 2 are evenly distributed on the side wall of the charging barrel body, when the injection pipes 2 are obliquely downwards inserted into the feeding channel of the charging barrel body along the through holes, the maximum length of the injection pipes 2 inserted into the feeding channel is conveniently increased, the number of the air outlet holes 201 in the feeding channel is increased under the condition that the distribution density and the aperture of the air outlet holes 201 on the surface of the injection pipes 2 are unchanged, the flow of high-pressure air flow is increased, and then the capability of crushing arching materials of the injection pipes 2 is improved.

In this embodiment, the part of the blowing pipe 2 placed in the feeding channel is sleeved with a blowing filter bag 5. It is known that the air outlet 201 should allow air to pass through, but not material, so as to avoid the air outlet 201 being blocked; to this end, the blowing filter bag 5 covers at least all the air outlet holes 201 along the area covered by the blowing tube 2.

As a specific structural form, the blowing filter bag 5 is a cylindrical shape, one end of the blowing filter bag 5 is open, and the other end is in a blocking structure. After the blowing filter bag 5 is sleeved outside the blowing pipe 2, the whole structure of the blowing pipe 2 and the blowing filter bag 5 is inserted into the feeding channel from the through hole. After the injection tube 2 is inserted in place relative to the feed channel, the opening of the injection filter bag 5 is outside the cartridge body.

It can be seen that, the two ends of the blowing pipe 2 are open under the conventional condition, an inner port is formed inside the feeding channel, an outer port is formed outside the bin body 1, the size of the inner port is far greater than that of the air outlet hole 201, and if one end of the blowing pipe 2 inserted into the feeding channel is open, the support of the blowing filter bag 5 at the position is less, and the blowing filter bag is easily damaged due to extrusion of raw materials in the long-time use process. In order to solve the problem that the injection bag is easy to damage at the position of the inner port, the inner port of one end of the injection pipe 2, which is inserted into the feeding channel, is plugged.

In order to achieve uniform air exit of the lance tube 2 in the feed channel: in this embodiment, the air outlet holes 201 are uniformly distributed along the circumferential direction of the blowing pipe 2.

In order to fix the blowing pipe 2 relative to the barrel body, in this embodiment, a first flange 401 is fixed on the outside of the blowing pipe 2, a second flange 402 is provided on the outer wall surface of the silo body 1, and the first flange 401 and the second flange 402 are detachably fixed. The first flange 401 and the second flange 402 form a flange assembly 4

Specifically, the first flange 401 and the second flange 402 are respectively provided with bolt holes, and the first flange 401 and the second flange 402 are fixedly connected by bolts. The first flange 401 is welded to the lance 2 and the second flange 402 is welded to the outer wall surface of the silo body 1 regardless of the length of the lance 2 inserted into the feed passage. In other embodiments, a hoop is provided on the outside of the lance 2, and the first flange 401 and the hoop are connected by bolts. By fixing the anchor ear at different positions of the lance 2, the length of the lance 2 inserted into the feed channel can be adjusted.

Specifically, the pulse valve 3 is an electrically controlled pulse valve 3, and the controller can adopt a singlechip or an arm sensor and can control the action of the pulse valve 3 by using the controller. Specifically, the air inlet of the pulse valve 3 is communicated with an external high-pressure air source, and the air outlet of the pulse valve 3 is communicated with the air inlet of the blowing pipe 2, which is positioned outside the bin body 1.

In this embodiment, the blowing pipe 2 is slidably connected to the bin body 1, so that the blowing pipe 2 can change the length of penetrating into the feeding channel, a driving member (not shown in the figure) is disposed at the bin body 1, the driving member is used for driving the blowing pipe 2 to slide along the axis direction of the blowing pipe 2, and the portion of the blowing pipe 2 inserted into the feeding channel is provided with the air outlet 201. The use of the flange assembly 4 is omitted at this time.

It can be known that, under the condition that the blowing pipe 2 is slidably connected with the bin body 1, the blowing pipe 2 can change the length of the blowing pipe 2 inserted into the bin body 1 along the axis of the blowing pipe, and further, the blowing pipe 2 is driven by the driving piece to reciprocate, so that the blowing pipe 2 extrudes and stirs the materials in the feeding channel, and the phenomena of blockage and arching are avoided.

Further, an elastic string (not shown) is provided between adjacent blowing pipes 2, the elastic string being at the end of the blowing pipe 2 inserted into the feed passage. When the blowing pipe 2 slides back and forth along the axis direction of the blowing pipe, the elastic ropes can cut the materials in the feeding channel, so that the blocking and arching conditions are avoided.

Specifically, the driving member may be an electric push rod, an air cylinder, a hydraulic cylinder or the like, which may be set by a person skilled in the art.

In order to realize the stability of the axial sliding of the blowing pipe 2 along the self, in this embodiment, a guide sleeve (not shown in the figure) which is coaxially arranged with the through hole and has the same inner diameter as the through hole is arranged on the outer wall surface of the stock bin body 1, and the blowing pipe 2 passes through the guide sleeve. In this structural arrangement, even if the thickness of the side wall surface of the bin body 1 is small, the cooperation of the guide sleeve and the through hole can still ensure the smooth reciprocating sliding of the blowing pipe 2.

Working principle: when the material flows to the outlet of the bin, the size of the outlet is reduced sharply, and the throughput capacity is reduced, so that the material is agglomerated and blocked at the outlet. The blanking device is prevented blocking by the feed bin, the blocking condition is found through corresponding blanking detection equipment, when the arch forming phenomenon occurs at the transition connecting bin, the arch breaking device is started, compressed air is blown through the blowing pipe penetrating into the feed bin, and the arch forming material falls down due to gravity and the compressed air, so that the blanking of the material is smooth.

Thus far, the technical solution of the present application has been described in connection with the foregoing preferred embodiments, but it is easily understood by those skilled in the art that the protective scope of the present application is not limited to the above-described preferred embodiments. The technical solutions in the above preferred embodiments may be split and combined by those skilled in the art without departing from the technical principles of the present application, and equivalent changes or substitutions may be made to related technical features, so any changes, equivalent substitutions, improvements, etc. made within the technical concepts and/or technical principles of the present application will fall within the protection scope of the present application.

Claims (10)

1. The arch breaking device of the stock bin is characterized by comprising a blowing pipe and a pulse valve;

one end of the blowing pipe is positioned outside the storage bin body and can be communicated with an external high-pressure air source, the storage bin body is provided with a feeding channel which vertically penetrates through the storage bin body, the side wall of the storage bin body is provided with a through hole, the upper end opening of the storage bin body is square, the lower end opening is circular, and the diameter of the lower end opening is smaller than the side length of the upper end opening;

the other end of the blowing pipe can obliquely downwards pass through the through hole and is inserted into the feeding channel; four blowing pipes are arranged on the side wall of the storage bin body along the circumferential direction, vertically correspond to the four side edges of the upper end opening respectively, and are distributed in a cross shape on the storage bin body;

the pulse valve is arranged between the jetting pipe and an external high-pressure air source, and is in signal communication with the controller.

2. The arch breaking device of the storage bin according to claim 1, wherein the outer wall of the part of the blowing pipe inserted into the feeding channel is provided with a plurality of air outlet holes.

3. The arch breaking device of the storage bin according to claim 1 or 2, wherein a part of the blowing pipe arranged in the feeding channel is sleeved with a blowing filter bag.

4. The arch breaking device of the storage bin according to claim 1 or 2, wherein one end of the blowing pipe inserted into the feeding channel is plugged.

5. The arch breaking device of the storage bin according to claim 2, wherein the air outlets are uniformly distributed along the circumferential direction of the blowing pipe.

6. The arch breaking device of the storage bin according to claim 1, wherein a first flange is fixed to the outer portion of the blowing pipe, and a second flange detachably fixed to the first flange is fixed to the outer wall of the storage bin body.

7. The arch breaking device of the storage bin according to claim 1, wherein the blowing pipe is slidably connected with the storage bin body so as to change the length of the blowing pipe penetrating into the feeding channel, and a driving piece for driving the blowing pipe to slide along the axis direction of the blowing pipe is arranged at the storage bin body.

8. The bin arch breaking device of claim 7, wherein the driving member is an electric push rod.

9. The arch breaking device of claim 7, wherein elastic cords are provided between ends of adjacent blowing pipes inserted into the feed channels.

10. The arch breaking device for the storage bin according to claim 7, wherein the outer wall surface of the storage bin body is provided with a guide sleeve which is coaxially arranged with the through hole and has the same inner diameter.