CN114772086A

CN114772086A - Double-cone-bin bulk material storage device and discharge method thereof

Info

Publication number: CN114772086A
Application number: CN202210630827.5A
Authority: CN
Inventors: 李道
Original assignee: Guhe Construction Machinery Manufacturing Co ltd
Current assignee: Guhe Construction Machinery Manufacturing Co ltd
Priority date: 2022-06-06
Filing date: 2022-06-06
Publication date: 2022-07-22

Abstract

A double-cone-bin bulk material storage device comprises a sealed bin, wherein the sealed bin comprises a cubic bin at the upper part and two cone bins arranged side by side, the top of the cubic bin is provided with at least one feeding hole, a cover is fixed on the feeding hole, the lower part of each cone bin is communicated with a discharging system, the discharging system is fixed on the sealed bin, and a breathing system is fixed on the sealed bin; the discharging system comprises two transverse augers, a transverse auger is arranged below the cone tip of each cone bin, a plurality of discharging through holes are formed in the outer wall of the transverse auger, the discharging through holes enable the inside of the transverse auger to be communicated with the bottom of the cone bin, and the outlet of the transverse auger is communicated with the inlet end of the transverse auger. The invention also discloses a discharging method of the double-cone-bin bulk material storage device. Compared with the prior art, the invention has the technical effects that the invention is provided with two conical bins, and each conical bin is provided with one set of internal breathing system, so that a high-density area can not be formed in the conical bins, and the discharging can be smoothly stored.

Description

Double-cone-bin bulk material storage device and discharge method thereof

Technical Field

The invention relates to a bulk material storage device with double conical bins, which is particularly applied to the industries of bulk materials such as bulk cement, flour, grains, feeds and the like.

Background

At present, the company has developed a "multifunctional bulk material storage vehicle", see chinese patent publication No. CN 111055896A. Bulk material can be transported in bulk, but the storage cart does not discharge smoothly.

For this reason, further improvements thereof are required.

Disclosure of Invention

The technical problems to be solved by the invention are as follows: how to design a storage vehicle/storage device with smooth discharging.

The technical scheme of the invention is as follows:

a double-cone-bin bulk material storage device comprises a sealed bin, wherein the sealed bin comprises a cubic bin at the upper part and two cone bins arranged side by side, the top of the cubic bin is provided with at least one feeding hole, a cover is fixed on the feeding hole, the lower part of each cone bin is communicated with a discharging system, the discharging system is fixed on the sealed bin, and a breathing system is fixed on the sealed bin; the discharging system comprises two transverse augers, one transverse auger is arranged below the cone tip of each cone bin, a plurality of discharging through holes are formed in the outer wall of each transverse auger, the discharging through holes enable the interior of each transverse auger to be communicated with the bottom of each cone bin, and the outlet of each transverse auger is communicated with the inlet end of each transverse auger; the breathing system comprises an outer breathing pipe and two inner breathing pipes, the outer breathing pipe is positioned at the top in the sealed cabin, the outer breathing pipe is communicated with the inside of the sealed cabin through a plurality of breathing holes, one end part of the outer breathing pipe extends to the outer side of the sealed cabin, and the end part is communicated with the outside; interior respiratory tube is located the inside of sealed storehouse, and its quantity that sets up depends on the length of sealed storehouse, and the vertical setting of interior respiratory tube, inside the horizontal auger of lower tip intercommunication of interior respiratory tube, its upper end intercommunication sealed storehouse's headspace.

The respiratory system comprises a plurality of parallel internal respiratory tubes, and the internal respiratory tubes and the discharge through holes are arranged in a staggered manner.

The outlets of the two transverse packing augers are connected in parallel with the bottom of the transverse packing auger through a connecting pipeline.

The feed inlet department is equipped with the dust bag, and the wall of feed inlet upwards extends and forms the bulge loop, and the sack cover of dust bag is in the outside of bulge loop, and the sack is equipped with the hoop outward, and the hoop fastens sack and bulge loop together.

A discharge method of a double-cone-bin bulk material storage device is disclosed, wherein the bulk material is cement, and the double-cone-bin bulk material storage device is used; during the ejection of compact, start horizontal auger and carry out the cement in it, cement in the sealed cabin constantly gets into horizontal auger from discharging hole, when vacuum zone is likely to appear in the sealed cabin, the lower surface of cement in the sealed cabin and the pressure in space between the horizontal auger are less than atmospheric pressure, at this moment, the headspace of sealed cabin passes through outer breathing tube intercommunication external, same with external pressure, the air of the headspace of sealed cabin gets into the negative pressure space from interior breathing tube, avoid appearing the vacuum zone, make the cement in the sealed cabin constantly get into horizontal auger from discharging hole, along with horizontal auger transports the cement in it in succession, for accomplishing the ejection of compact.

Compared with the prior art, the invention has the technical effects that the invention is provided with two conical bins, and each conical bin is provided with one set of internal breathing system, so that a high-density area can not be formed in the conical bins, and the discharging can be smoothly stored.

Drawings

Fig. 1 is a schematic illustration of the discharge of bulk material.

Fig. 2 is a schematic diagram (one) of the present invention.

FIG. 3 is a schematic view (I) of the present invention with a portion of the chamber plate removed.

FIG. 4 is a schematic diagram of the present invention with a part of the bin plate removed (II).

FIG. 5 is a schematic diagram of the present invention (II).

Fig. 6 is a schematic bottom view of the present invention.

Fig. 7 is a schematic cross-sectional view of AA of fig. 6.

Fig. 8 is an enlarged schematic view of the connection between the feed inlet and the dust removal bag in fig. 7.

Detailed Description

The research of our company discovers that the reason why the bin is not smooth in discharging is that:

as shown in fig. 1, a general storage bin is a sealed storage bin, a discharge port 901 is formed at the bottom of the storage bin, when a bulk material (hereinafter referred to as a "material") is discharged, a lower vacuum region 902 is formed in a space where the material flows out, air in a gap of a material adjacent to the lower vacuum region 902 is pumped away and is extruded to form a high-density layer 903 (also referred to as a "lapping arch"), and the density of the high-density layer 903 is much higher than that of a normal material region 900. The adhesion between the particles includes van der waals force, electrostatic attraction force, magnetic force, mechanical biting force, and the like. After the high-density layer 903 is formed, the adhesive force of the high-density layer 903 is far greater than that of the normal material area 900 to form a solid layer which can resist the gravity of the normal material area 900, so that the high-density layer 903 becomes a protective layer to prevent the normal falling of the normal material area 900, and the normal material area 900 cannot fall normally.

Meanwhile, when the material is discharged, as the normal material area 900 continuously falls, an upper vacuum area 904 is formed above the normal material area 900, and the upper vacuum area 904 may attract the normal material area 900 or even generate a high-density layer, which may also obstruct the material discharge.

I company concluded: the new double-cone bulk material storage device can store materials to be discharged smoothly only by breaking the lower vacuum area 902 and the upper vacuum area 904.

The present invention will be described in detail with reference to the accompanying drawings and specific embodiments thereof.

Referring to fig. 2 to 8, a double cone bin bulk storage device comprises a sealed bin 100, wherein the sealed bin 100 is a bin for storing bulk materials, the sealed bin 100 comprises a cubic bin 110 at the upper part and two cone bins 120 arranged side by side, the top of the cubic bin 110 is provided with at least one feed inlet 101, the feed inlet 101 is fixed with a cover 102, the lower part of each cone bin 120 is communicated with a discharge system, the discharge system is fixed on the sealed bin 100, and a breathing system is fixed on the sealed bin 100.

As shown in fig. 2-5, the discharging system comprises two transverse augers 200, one transverse auger 200 is arranged below the cone tip of each cone bin 120, a plurality of discharging through holes 201 are arranged on the outer wall of the transverse auger 200, the discharging through holes 201 enable the interior of the transverse auger 200 to be communicated with the bottom of the cone bin 120, and the outlet of the transverse auger 200 is communicated with the inlet end of the transverse auger 220. The horizontal auger 200 is arranged at a low position to facilitate the automatic outflow of all materials in the sealed bin 100, but the inlet of equipment which can receive the materials is higher (such as a cement mixer), so the horizontal auger 220 is arranged to improve the height of the discharge hole of the discharge system.

As shown in fig. 2 to 5, the respiratory system includes an external respiratory tube 420 and two internal respiratory tubes 300, the external respiratory tube 420 is located at the top of the sealed chamber 100, the external respiratory tube 420 is communicated with the inside of the sealed chamber 100 through a plurality of respiratory holes 421, one end of the external respiratory tube 420 extends to the outside of the sealed chamber 100 and the end is communicated with the outside (see reference numeral 400). The purpose of the external breathing tube 420 is to communicate the headspace within the capsule 100 with the outside, facilitating the breaking of the upper vacuum zone 904 above.

Referring to fig. 2 to 5, the internal breathing tube 300 is located inside the sealed chamber 100, the number of the internal breathing tube 300 is determined by the length of the sealed chamber 100, the internal breathing tube 300 is vertically arranged, the lower end of the internal breathing tube 300 is communicated with the inside of the transverse packing auger 200 (see reference numeral 301), and the upper end (see reference numeral 421) is communicated with the top space of the sealed chamber 100 (see reference numeral 302). The function of the internal breathing tube 300 is to facilitate breaking the upper vacuum region 902 above the headspace in the capsule 100 and the headspace in the capsule 100. When the material is fed from the feeding hole 101, the material may enter the inner breathing tube 300 from the upper end of the inner breathing tube 300 to block the inner breathing tube 300, so the upper end of the inner breathing tube 300 should be as close as possible to the top inner wall of the sealed cabin 200, as long as the upper end of the inner breathing tube 300 can enter and exit air.

As shown in fig. 2 to 5, the respiratory system includes a plurality of parallel internal breathing tubes 300 for uniform air intake, and the internal breathing tubes 300 are staggered with the discharging through holes 201. Thus, the external air is more uniformly introduced.

As shown in FIGS. 2 to 5, for facilitating the discharge, outlets of two transverse augers 200 are connected in parallel to the bottom of a transverse auger 220 through a connecting pipe 210.

The bulk material is generally fed through the inlet 101. However, in practice, there is also pneumatic conveying, i.e. a mixture of air and bulk material is fed into the capsule 100 by gas pressure, the air escapes through the inlet opening 101 and the bulk material remains in the capsule 100. To avoid the escape of bulk material, a filter screen is installed at the inlet 101. However, when the bulk material is cement, the cement powder is very fine and will still escape from the filter screen.

As shown in fig. 6-8, a dust removal bag 500 is arranged at the feed inlet 101, the wall of the feed inlet 101 extends upwards to form a convex ring 1011, a bag mouth 510 of the dust removal bag 500 is sleeved outside the convex ring 1011, a hoop 520 is arranged outside the bag mouth 510, and the bag mouth 510 and the convex ring 1011 are fastened together by the hoop 520.

Referring to fig. 7, when the cover 102 (see reference numeral 1021) is opened, after the mixture of air and bulk materials is fed into the sealed bin 100 through the outer port 401 of the outer breathing tube 420, the space of the sealed bin 100 is large, the air speed is reduced, at this time, the bulk materials fall down by gravity, the air blows up the dust bag 500 (see the dust bag 500 at the middle position of fig. 7), at this time, compared with the effective filtering area of a common filtering net, the dust bag 500 is in a three-dimensional shape, the effective filtering area is large, the speed of air passing through the dust bag is low, the force of air carrying the material jacket is weak, and the bulk materials are prevented from escaping from the dust bag.

When the sealed bin 100 is empty, the dust bag (see reference numeral 510) at the edge position shown in fig. 7 is in an unfolded state; when the sealed cabin 100 is full, the dust removing bag is made of flexible materials, and can be folded and gathered together (not shown in the figure), so that the cargo capacity of the sealed cabin 100 is not influenced.

The working principle is as follows:

the following description will be made by taking cement as an example.

During charging, cement enters the sealed cabin 100 from the feed inlet 101 (or the outer breathing tube 420) at the beginning, the cement falls down at the cone tip of the cone cabin 120 or in the transverse auger 200, air at the cone tip moves to the top of the sealed cabin 100 from the transverse auger 200 and the inner breathing tube 300, and then the air escapes from the outer breathing tube 420 (or the cement escapes from the feed inlet 101) outwards, so that an air area is avoided at the cone tip of the cone cabin 120.

Then, as the cement continuously enters the sealing silo 100, the charging operation is completed.

During discharging, the transverse auger 200 is started to convey cement in the transverse auger 200, the cement in the sealed bin 100 continuously enters the transverse auger 200 from the discharge through hole 201, when a vacuum area possibly occurs in the sealed bin 100, the pressure of a space (hereinafter referred to as a negative pressure space) between the lower surface of the cement in the sealed bin 100 and the transverse auger 200 is smaller than atmospheric pressure, at the moment, the top space of the sealed bin 100 is communicated with the outside through the external breathing tube 420 and is the same as the pressure of the outside, air in the top space of the sealed bin 100 enters the negative pressure space from the internal breathing tube 300 to avoid the vacuum area, and a solid layer of the high-density layer 903 is avoided, so that the cement in the sealed bin 100 continuously enters the transverse auger 200 from the discharge through hole 201, the cement in the transverse auger 200 is continuously conveyed out along with the transverse auger 200, and discharging is completed.

Incidentally, in order to prevent the occurrence of the cement arch, the company of the inventor imagines that a vibrator is added to the outer wall of the sealed cabin 100 to destroy the cement arch by oscillation thereof, but through experiments, the vibrator may make the cement arch stronger and not easy to destroy the cement arch.

See the prior art for additional details.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the overall concept of the present invention, and these should also be construed as the protection scope of the present invention.

Claims

1. A double-cone-bin bulk material storage device comprising a sealed bin (100), characterized in that: the sealed bin (100) comprises a cubic bin (110) at the upper part and two conical bins (120) arranged side by side, at least one feeding hole (101) is formed in the top of the cubic bin (110), a cover (102) is fixed on the feeding hole (101), the lower part of each conical bin (120) is communicated with a discharging system, the discharging system is fixed on the sealed bin (100), and a breathing system is fixed on the sealed bin (100);

the discharging system comprises two transverse packing augers (200), a transverse packing auger (200) is arranged below the cone tip of each cone bin (120), a plurality of discharging through holes (201) are formed in the outer wall of each transverse packing auger (200), the discharging through holes (201) enable the interior of each transverse packing auger (200) to be communicated with the bottom of each cone bin (120), and the outlet of each transverse packing auger (200) is communicated with the inlet end of each transverse packing auger (220);

the breathing system comprises an outer breathing pipe (420) and two inner breathing pipes (300), wherein the outer breathing pipe (420) is positioned at the top in the sealed cabin (100), the outer breathing pipe (420) is communicated with the inside of the sealed cabin (100) through a plurality of breathing holes (421), one end part of the outer breathing pipe (420) extends to the outer side of the sealed cabin (100), and the end part is communicated with the outside;

the inner breathing tube (300) is positioned in the sealed bin (100), the setting number of the inner breathing tube depends on the length of the sealed bin (100), the inner breathing tube (300) is vertically arranged, the lower end part of the inner breathing tube (300) is communicated with the inside of the transverse packing auger (200), and the upper end part of the inner breathing tube is communicated with the top space of the sealed bin (100).

2. A double cone bin bulk storage device according to claim 1, wherein: the respiratory system comprises a plurality of parallel internal breathing tubes (300), and the internal breathing tubes (300) and the discharge through holes (201) are arranged in a staggered manner.

3. A double cone bin bulk storage device according to claim 1, wherein: outlets of the two transverse packing augers (200) are connected in parallel with the bottom of the transverse packing auger (220) through a connecting pipeline (210).

4. A double cone bin bulk storage device according to claim 1, wherein: the dust removal bag (500) is arranged at the position of the feed port (101), the wall of the feed port (101) extends upwards to form a convex ring (1011), a bag opening (510) of the dust removal bag (500) is sleeved on the outer side of the convex ring (1011), a hoop (520) is arranged outside the bag opening (510), and the bag opening (510) and the convex ring (1011) are fastened together by the hoop (520).

5. A discharge method of a double-cone-bin bulk material storage device is characterized in that the bulk material is cement, and the discharge method comprises the following steps: use of a double cone bin bulk storage device according to claim 1;

during the ejection of compact, start horizontal auger (200) and carry out the cement in it, cement in sealed storehouse (100) constantly gets into horizontal auger (200) from ejection of compact through hole (201), when vacuum zone probably appears in sealed storehouse (100), the pressure in the space between the lower surface of cement in sealed storehouse (100) and horizontal auger (200) is less than atmospheric pressure, at this moment, the headspace of sealed storehouse (100) passes through outer respiratory tube (420) intercommunication external, the same with external pressure, the air of the headspace of sealed storehouse (100) gets into the negative pressure space from interior respiratory tube (300), avoid appearing the vacuum zone, make cement in sealed storehouse (100) constantly get into horizontal auger (200) from ejection of compact through hole (201), along with horizontal auger (200) is continuous with cement in it transports, for accomplishing the ejection of compact.