CN111747147B

CN111747147B - Be applied to material conveyor who joins in marriage coal machine

Info

Publication number: CN111747147B
Application number: CN202010616231.0A
Authority: CN
Inventors: 李素梅
Original assignee: Handan Feixiang Hongfeng Mining Machinery Manufacturing Co ltd
Current assignee: Handan Feixiang Hongfeng Mining Machinery Manufacturing Co ltd
Priority date: 2020-07-01
Filing date: 2020-07-01
Publication date: 2022-02-22
Anticipated expiration: 2040-07-01
Also published as: CN111747147A

Abstract

The invention discloses a material conveying device applied to a coal blending machine, which comprises at least one group of weighing mechanisms and a material conveying mechanism which are matched with each other, wherein each weighing mechanism comprises a weighing belt and a sealing unit which completely seals the upper half part of the weighing belt; the feed inlet of the sealing unit is communicated with the discharge outlet of the coal blending machine bin, and the discharge outlet of the sealing unit is communicated with the feed inlet of the material conveying mechanism; the material conveying mechanism comprises a closed shell and a material conveying belt fixedly arranged in the closed shell, and a blockage cleaning unit for preventing material blockage is further arranged in the closed shell and above the material conveying belt. The coal blending device is novel in design, ingenious in structure and convenient to use, can avoid the phenomenon of coal dust diffusion in the coal blending process, and fundamentally avoids the damage of the coal dust to the working environment. The invention is suitable for a coal blending machine, and is used for weighing single coal in each bin of the coal blending machine and conveying the weighed single coal to a crushing stirrer of the coal blending machine.

Description

Be applied to material conveyor who joins in marriage coal machine

Technical Field

The invention belongs to the technical field of coal conveying, and particularly relates to a material conveying device applied to a coal blending machine.

Background

At present, coking coal resources of all countries in the world are scarce, the requirements on coke quality and stability are higher and higher due to large-scale blast furnaces, and strong caking coal in the coking coal resources is less and less, which is a contradiction especially prominent in China. According to the concrete condition of coal resources in China, various coking plants are dedicated to the research of coal blending schemes, namely, single coals with different brands are blended according to a certain proportion for coking so as to reasonably utilize the resources of coking coals in various regions and enlarge the reserve amount of the coking coals. The blended coal is adopted for coking, so that not only can high-quality coking coal be saved, but also the coking characteristics of various coals can be fully utilized, and the quality of metallurgical coke can be changed by making good use of the advantages and disadvantages.

At present, different single coals are mixed by a coal blending machine according to a certain proportion, namely, the flow of the single coals in each bunker is controlled by a weighing belt, and then the different single coals with proper proportion are conveyed to a crushing stirrer through a material mixing belt to be mixed, so that the preparation of the different single coals is realized. However, because the molecular structure of coal is not compact, when coal in the bunker falls into the weighing belt and the material combining belt conveys the coal, dust raising is easily caused, production sites such as workshops and the like are greatly damaged, and workers work in severe environment for a long time, so that the health of the workers is influenced to a certain extent.

Disclosure of Invention

In order to overcome the defects in the prior art, the invention aims to provide a material conveying device applied to a coal blending machine, so that coal dust is sealed and isolated in the coal conveying process, the phenomenon that the coal dust is diffused in a coal blending site is avoided, and a good-quality working environment is provided for workers.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows: a material conveying device applied to a coal blending machine comprises at least one group of weighing mechanisms and a material conveying mechanism which are matched with each other, wherein each weighing mechanism comprises a weighing belt and a sealing unit which completely seals the upper half part of the weighing belt; the feed inlet of the sealing unit is communicated with the discharge outlet of the coal blending machine bin, and the discharge outlet of the sealing unit is communicated with the feed inlet of the material conveying mechanism;

the conveying mechanism comprises a closed shell and a material conveying belt fixedly arranged in the closed shell, and blockage removing units for preventing material blockage are further arranged in the closed shell and above the material conveying belt; the blockage removing unit comprises a fixed rod, a plurality of movable plates and a first driving part for controlling the fixed rod to swing, wherein the fixed rod is horizontally erected above the closed shell and can swing along the length direction of the closed shell; each movable plate is hinged and fixed with the fixed rod and penetrates through the through groove of the top plate of the closed type shell to extend downwards to the inside of the closed type shell, and the movable plates are hinged with the top plate of the closed type shell.

As a limitation of the invention, a spiral part for preventing material blockage is fixedly arranged at the discharge port of the sealing unit; the spiral part comprises a rotating shaft fixedly arranged at the discharge port of the sealing unit and a plurality of stirring rollers of which one ends are fixed on the rotating shaft, wherein the rotating shaft is connected with the power output end of the second driving part.

As a further limitation of the invention, the belt weigher further comprises a tension component for adjusting the tightness of the weighing belt, wherein the tension component comprises a plurality of first carrier rollers, a plurality of second carrier rollers and a third driving component for driving the first carrier rollers to move;

the first carrier roller is tightly attached to the lower surface of the upper half part of the weighing belt and is positioned in the sealing unit, and two ends of the first carrier roller are connected with the inner wall of the sealing unit in a sliding manner; the second carrier roller is tightly attached to the upper surface of the lower half part of the weighing belt and is positioned outside the sealing unit; each second supporting roller is hinged with any two first supporting rollers through a connecting rod.

As a still further limitation of the present invention, the connecting rod is fixedly connected with the first idler and the second idler through bearings.

As another limitation of the present invention, rubber seals are disposed at the intersection of the weighing belt and the sealing unit, at the intersection of the connecting rod and the sealing unit, and at the intersection of the movable plate and the closed-type housing.

As a further limitation of the present invention, the weighing belt and the material conveying belt are both trough type conveying belts.

As still further defined in the present invention, the side panels of the hermetic container are clamped between the top and bottom panels of the hermetic container.

As a further limitation of the invention, three weighing mechanisms are horizontally arranged side by side, and two material conveying mechanisms are arranged below the weighing mechanisms in an up-down parallel manner; the two weighing mechanisms adjacent to the left side are oppositely arranged, and the discharge ports are communicated with the feed port of the upper material conveying mechanism; the discharge hole of the rightmost weighing mechanism is communicated with the feed hole of the lower material conveying mechanism; the discharge hole of the upper material conveying mechanism is also communicated with the feed hole of the lower material conveying mechanism.

Due to the adoption of the technical scheme, compared with the prior art, the invention has the following beneficial effects:

(1) according to the invention, the upper half part of the weighing belt is completely sealed through the sealing unit, the material conveying belt matched with the weighing belt is arranged in the closed shell, and the device can complete mixing of different single coals under the completely closed condition, so that the generation of dust raising phenomenon during weighing and conveying of the single coals is avoided, the damage of coal dust to production sites such as workshops is reduced, and the working environment of workers is improved; on the other hand, after the coal blending work is finished, workers do not need to perform subsequent cleaning treatment on coal dust diffused and scattered in the production field, and the labor intensity of the workers is reduced.

(2) According to the invention, the spiral part arranged at the discharge port of the sealing unit and the blockage removing unit arranged on the material conveying belt can effectively avoid the problem of coal blockage in the device from time to time, and the normal conveying of coal by the device can be ensured when the coal blending machine has excessive blanking in the bunker. The device can ensure normal coal conveying, enables the coke quality to be controlled, and is easy to popularize and implement.

(3) The belt tensioning device is provided with the tensioning component for adjusting the tightness of the weighing belt, so that a certain friction force is always kept among the belt, the driving roller and the driven roller in the weighing belt by adjusting the tightness of the weighing belt, and the normal work of the weighing belt is prevented from being influenced by the loosening and deviation of the belt. And set up in the tensioning member and set up the first bearing roller on weighing belt upper half lower surface, also can carry out corresponding support to weighing the belt, avoid making the sag of belt between drive roll, driven voller transfinite because of weighing the belt coal overweight, can suitably reduce the running resistance, guarantee weighing the steady operation of belt.

(4) Rubber sealing elements are arranged at the intersection of the sealing unit, the closed shell and other parts, so that the sealing effect of the device can be further ensured, and the generation of coal dust can be completely avoided when coal is conveyed.

(5) According to the invention, one side plate in the closed shell adopts a clamping fixing mode, the structure is convenient to disassemble, and the material conveying belt and the blockage removing unit in the closed shell can be conveniently overhauled.

In conclusion, the coal blending device has the advantages of novel design, ingenious structure and convenience in use, can avoid the phenomenon of coal dust diffusion in the coal blending process, fundamentally avoids the damage and pollution of the coal dust to the working environment, and has good economic benefit.

The invention is suitable for a coal blending machine, and is used for weighing single coal in each bin of the coal blending machine and conveying the weighed single coal to a crushing stirrer of the coal blending machine.

Drawings

The invention is described in further detail below with reference to the figures and the embodiments.

FIG. 1 is a side view of a weighing mechanism according to an embodiment of the present invention in a structural relationship;

FIG. 2 is a side view of the material handling mechanism of an embodiment of the present invention in a structural relationship;

FIG. 3 is a schematic diagram of the overall structure of the embodiment of the present invention;

in the figure: 1. a weighing mechanism; 2. a material conveying mechanism; 3. weighing the belt; 4. a sealing unit; 51. a rotating shaft; 52. a stirring roller; 61. a first carrier roller; 62. a second carrier roller; 63. a connecting rod; 7. a closed housing; 8. a material conveying belt; 91. fixing the rod; 92. a movable plate.

Detailed Description

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the description of the preferred embodiment is only for purposes of illustration and understanding, and is not intended to limit the invention.

Embodiment is applied to material conveyor who joins in marriage coal machine

As shown in fig. 1 to fig. 3, the present embodiment includes at least one set of weighing mechanism 1 and material transporting mechanism 2, wherein the upper half of the weighing belt 3 in the weighing mechanism 1 is sealed by the sealing unit 4, the material conveying belt 8 in the material transporting mechanism 2 is disposed in the closed housing 7, the discharge port of the sealing unit 4 is communicated with the feed port of the closed housing 7 in the material transporting mechanism 2, and the device integrally forms a closed working environment. This embodiment can weigh, carry different single coal under totally enclosed environment to the production of raise dust phenomenon in avoiding the coal blending work reduces the destruction and the pollution of coal dust to job site.

Weighing mechanism 1

The weighing mechanism 1 is used for weighing the single coal thrown out from the bunker of the coal blending machine and conveying the single coal with specified weight to the material conveying mechanism 2 in a certain time. The weighing mechanism 1 comprises a weighing belt 3 and a sealing unit 4 capable of completely sealing the upper half of the weighing belt 3.

(1) Weighing belt 3

The weighing belt 3 adopted in the embodiment is of an existing structure, mainly comprises a belt, a driving roller and a driven roller, and a weighing sensor is arranged below the belt so as to finish weighing work when single coal is conveyed. The weight of the individual coals transported away via the weighing belt 3 can be captured and controlled per time period from the coal distributor bunker by means of the weighing belt 3.

(2) Sealing unit 4

As shown in fig. 1, the sealing unit 4 disposed on the weighing belt 3 is a metal casing capable of completely sealing the upper half of the weighing belt 3 without affecting the normal operation of the weighing belt 3, and a rubber sealing member is further fixedly disposed at the intersection of the weighing belt 3 and the sealing unit 4 to ensure good sealing performance. It should be noted that the feed inlet of the sealing unit 4 is communicated with the discharge outlet of the coal blending bunker, and the feed inlet of the sealing unit 4 is communicated with the feed inlet of the material transporting mechanism 2.

(3) Screw member

As shown in fig. 1, a screw member for preventing material blockage is fixedly arranged at the discharge port of the sealing unit 4, the screw member includes a rotating shaft 51 and a stirring roller 52 having one end fixedly connected to the rotating shaft 51, and a plurality of stirring rollers 52 are uniformly arranged along the axial direction of the rotating shaft 51. Wherein, both ends of the rotating shaft 51 are fixedly arranged at the discharge outlet of the sealing unit 4 and can rotate, one end of the rotating shaft 51 is connected with the power output end of the second driving component, and the second driving component is used for providing power for the rotating shaft 51. In this embodiment, the second driving member is a servo motor provided on the outer wall of the sealing unit 4.

(4) Tension member

The tensioning part is used for adjusting the tightness of the weighing belt 3 so as to prevent the belt position in the weighing belt 3 from deviating. As shown in fig. 1, the tension means includes a plurality of first idlers 61, a second idler 62, and a third driving means for driving the first idlers 61 to move laterally within the sealing unit 4. First bearing roller 61 hugs closely the lower surface setting of weighing belt 3 first half, is located inside the seal unit 4, and in the spout of seal unit 4 inner wall both sides was fixed in at the both ends of first bearing roller 61, can make first bearing roller 61 carry out lateral shifting in the spout through the drive of third drive component. The second carrier roller 62 is disposed against the upper surface of the lower half of the weighing belt and is located outside the sealing unit 4. Each second idler roller 62 is hinged with any two first idler rollers 61 through a connecting rod 63 to form an inverted triangle integrally. The intersection of each connecting rod 63 and the sealing unit 4 is provided with a rubber sealing element to ensure a good sealing effect. In this embodiment, the connecting rod 63 is fixedly connected to the first idler 61 and the second idler 62 through bearings. The third driving part may be any one of an electric telescopic rod, a linear motor, a servo motor or a hydraulic motor, and in this embodiment, the electric telescopic rod is selected to drive the first carrier roller 61. Two electric telescopic rods are fixedly arranged on the inner wall of the sealing unit 4, and two first carrier rollers 61 connected with the same second carrier roller 62 are respectively in driving connection with different electric telescopic rods.

When two first carrier rollers 61 connected with the same second carrier roller 62 are driven by the third driving part to be away from each other, the position of the second carrier roller 62 is correspondingly raised, and the fixing of the weighing belt is relatively loosened; similarly, when two first supporting rollers 61 connected with the same second supporting roller 62 are driven by the third driving part to approach each other, the position of the second supporting roller 62 is correspondingly lowered, and the fixing of the weighing belt is relatively tightened.

Second, material conveying mechanism 2

The material conveying mechanism 2 is used for conveying the single coal conveyed by the weighing mechanism 1 to a crushing stirrer of the coal blending machine, so that the mixing of multiple single coals is realized. As shown in fig. 2, the material conveying mechanism 2 includes a closed housing 7 and a material conveying belt 8 fixedly arranged inside the closed housing 7, and a blockage removing unit for preventing material blockage is further arranged inside the closed housing 7 and above the material conveying belt 8.

(1) Enclosed shell 7 and material conveyer belt 8

As shown in fig. 2, the closed casing 7 is a rectangular metal casing as a whole, and can completely close the material conveying belt 8 as a whole. In this embodiment, in order to make the hermetic container 7 easily detachable so as to facilitate the maintenance of the device inside the hermetic container 7, the side plate of the hermetic container 7 is fixed between the top plate and the bottom plate of the hermetic container 7 in a snap-fit manner. The material conveying belt 8 is a conveying belt with an existing structure, and the details are not repeated here. When in use, the feeding hole of the closed shell 7 is communicated with the discharging hole of the sealing unit 4, and the discharging hole of the closed shell 7 is communicated with the crushing stirrer of the coal blending machine.

(2) Blockage clearing unit

As shown in fig. 2, the block clearing unit includes a fixed rod 91, a plurality of movable plates 92, and a first driving part for controlling the fixed rod 91 to swing. Wherein, the dead lever 91 is erected in the top of the closed type casing 7 through two stand levels to be the articulated fixed form between stand and dead lever 91, between stand and the closed type casing 7, so that the dead lever 91 can carry out the swing of certain degree under the drive of first driver part. One end of each movable plate 92 is hinged with the fixed rod 91, passes through the through groove of the top plate of the closed type shell 7, extends downwards to the inside of the closed type shell 7, and is suspended above the material conveying belt 8. And the movable plate 92 is hinged with the top plate of the closed type shell 7, so that the movable plate 92 can swing in a certain range along the length direction of the closed type shell under the driving of the fixed rod 91, the conveying of the single coal by the material conveying belt 8 is accelerated, and the single coal is prevented from accumulating and blocking on the material conveying belt 8. In this embodiment, a rubber seal is disposed at the intersection of the movable plate 92 and the closed casing 7 (i.e., at the through groove of the top plate of the closed casing 7) to ensure good sealing performance of the closed casing 7. And the first driving part is a cylinder arranged on the top plate of the sealed shell.

Third, the working process

In the present embodiment, taking a combination of one weighing mechanism 1 and one material transporting mechanism 2 as an example, as shown in fig. 3, three weighing mechanisms 1 are horizontally arranged side by side in the present embodiment, and two material transporting mechanisms 2 are arranged in parallel above and below the weighing mechanisms 1. The two weighing mechanisms 1 adjacent to the left side are oppositely arranged, and discharge ports of the two weighing mechanisms 1 are communicated with a feed port of the material conveying mechanism 2 above; the discharge hole of the upper material conveying mechanism 2 is communicated with the feed hole of the lower material conveying mechanism 2, and the discharge hole of the rightmost weighing mechanism 1 is also communicated with the feed hole of the lower material conveying mechanism 2. It should be noted that the weighing belt 3 and the material conveying belt 8 used in this embodiment are both trough type conveying belts.

When the embodiment is used, the feed inlets of the three weighing mechanisms 1 are respectively communicated with the discharge outlets of three bins of a coal blending machine, and the discharge outlet of the lower material conveying mechanism 2 is communicated with the feed inlet of a crushing stirrer in the coal blending machine; then put into the single coal of different kinds respectively in three feed bins of coal blending machine, transport the single coal of suitable ratio to broken agitator in through weighing mechanism 1, fortune material mechanism 2, realize the coal blending operation under the totally enclosed environment.

Although the present invention has been described in detail with reference to the above embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described above, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a be applied to material conveyor of coal blending machine, includes at least a set of weighing machine who mutually supports and fortune material mechanism, its characterized in that: the weighing mechanism comprises a weighing belt and a sealing unit which completely seals the upper half part of the weighing belt; the feed inlet of the sealing unit is communicated with the discharge outlet of the coal blending machine bin, and the discharge outlet of the sealing unit is communicated with the feed inlet of the material conveying mechanism;

the conveying mechanism comprises a closed shell and a material conveying belt fixedly arranged in the closed shell, and blockage removing units for preventing material blockage are further arranged in the closed shell and above the material conveying belt; the blockage removing unit comprises a fixed rod, a plurality of movable plates and a first driving part for controlling the fixed rod to swing, wherein the fixed rod is horizontally erected above the closed shell and can swing along the length direction of the closed shell; each movable plate is hinged and fixed with the fixed rod and penetrates through the through groove of the top plate of the closed shell to extend downwards into the closed shell, and the movable plates are hinged with the top plate of the closed shell;

the belt weigher also comprises a tensioning component used for adjusting the tightness of the weighing belt, wherein the tensioning component comprises a plurality of first carrier rollers, a plurality of second carrier rollers and a third driving component used for driving the first carrier rollers to move;

2. The material conveying device applied to the coal blending machine as claimed in claim 1, wherein: a spiral part for preventing material blockage is fixedly arranged at the discharge port of the sealing unit; the spiral part comprises a rotating shaft fixedly arranged at the discharge port of the sealing unit and a plurality of stirring rollers with one ends fixed with the rotating shaft, wherein the rotating shaft is connected with the power output end of the second driving part.

3. The material conveying device applied to the coal blending machine as claimed in claim 2, wherein: the connecting rod is fixedly connected with the first carrier roller and the second carrier roller through bearings.

4. The material conveying device applied to the coal blending machine as claimed in any one of claims 1 to 3, wherein: rubber sealing elements are arranged at the intersection of the weighing belt and the sealing unit, the intersection of the connecting rod and the sealing unit and the intersection of the movable plate and the closed shell.

5. The material conveying device applied to the coal blending machine as claimed in claim 4, wherein: the weighing belt and the material conveying belt are both groove-shaped conveying belts.

6. The material conveying device applied to the coal blending machine, as set forth in claim 5, is characterized in that: the side plate of the closed shell is clamped between the top plate and the bottom plate of the closed shell.

7. The material conveying device applied to the coal blending machine as claimed in claim 6, wherein: three weighing mechanisms are horizontally arranged side by side, and two conveying mechanisms are arranged below the weighing mechanisms in an up-down parallel manner; the two weighing mechanisms adjacent to the left side are oppositely arranged, and the discharge ports are communicated with the feed port of the upper material conveying mechanism; the discharge hole of the rightmost weighing mechanism is communicated with the feed hole of the lower material conveying mechanism; the discharge hole of the upper material conveying mechanism is also communicated with the feed hole of the lower material conveying mechanism.