阅读说明：本技术 一种煤分选运输系统 (Coal sorting and transporting system ) 是由 王光青 郑书华 高光宇 刘于慧 沈斌宏 余意社 于 2019-10-29 设计创作，主要内容包括：本发明公开了一种煤分选运输系统,包括用于分选煤的旋流器,煤运输装置,机头漏槽和位于该机头漏槽底部的中煤仓和精煤仓,旋流器的一侧设有原煤输入口,对应的另一侧设有精煤输出口,底部设有中煤输出口,煤运输装置的一端位于精煤输出口和中煤输出口的底部,另一端位于机头漏槽的顶部,该改进结构简化了原先的运输方式,降低了事故发生的可能性和生产成本,减少岗位人员及设备维修投入,节约了电耗。(The invention discloses a coal sorting and transporting system, which comprises a cyclone for sorting coal, a coal transporting device, a machine head chute, a medium coal bin and a clean coal bin which are positioned at the bottom of the machine head chute, wherein one side of the cyclone is provided with a raw coal input port, the other corresponding side of the cyclone is provided with a clean coal output port, the bottom of the cyclone is provided with a medium coal output port, one end of the coal transporting device is positioned at the bottom of the clean coal output port and the medium coal output port, and the other end of the coal transporting device is positioned at the top of the machine head chute.)

1. The utility model provides a transportation system is selected separately to coal, its characterized in that, is including the swirler that is used for separating the coal, coal conveyer, aircraft nose small trough and well coal bunker and the clean coal bunker that are located this aircraft nose small trough bottom, and one side of swirler is equipped with the raw coal input port, and the opposite side that corresponds is equipped with the clean coal delivery outlet, and the bottom is equipped with the well coal delivery outlet, and the one end of coal conveyer is located the bottom of clean coal delivery outlet and well coal delivery outlet, and the other end is located the top of aircraft nose small trough.

2. The coal sorting and transporting system according to claim 1, wherein the medium clean coal transporting device comprises a medium coal transporting belt for long distance transportation and a clean coal transporting belt for short distance transportation, the clean coal transporting belt is arranged on the top of the medium coal transporting belt, one end of the clean coal transporting belt is arranged on the bottom of the clean coal outlet of the cyclone, one end of the medium coal transporting belt is arranged on the bottom of the medium coal outlet of the cyclone, and the other end of the medium coal transporting belt is arranged on the top of the head chute.

3. A coal sorting conveyor system as in claim 1 wherein the head chute is provided with an electro-hydraulic ram for controlling the output of medium clean coal.

4. The coal sorting and transporting system according to claim 1, wherein the cyclone is provided with a clean coal collecting box and a medium coal collecting box both having discharge valves, the discharge valves of the clean coal collecting box and the medium coal collecting box respectively correspond to a clean coal output port and a medium coal output port of the cyclone, and the medium coal collecting box and the clean coal collecting box are connected by a pipeline.

5. A coal sorting and transporting method of a coal sorting and transporting system according to claim 1, including a coal sorting and transporting system of any one of claims 1 to 4, comprising the steps of:

step 1, sorting raw coal in a cyclone, and sorting clean coal products and middling products;

step 2, enabling the middling product obtained in the step 1 to enter the middling collecting box, enabling the clean coal product to enter the clean coal collecting box, closing a discharge valve of the middling collecting box, enabling the middling product to enter the clean coal collecting box through the pipeline, and enabling the middling product and the clean coal product to be in the clean coal collecting box;

step 3, opening a discharge valve of the clean coal collecting box, and enabling the middling products and the clean coal products in the step 2 to fall into the clean coal conveying belt and fall onto the middling conveying belt after short-distance conveying;

and 4, conveying the middling products and the clean coal products in the step 3 on the middling conveying belt for a relatively long distance, and then enabling the middling products and the clean coal products to fall into a machine head leakage groove, and controlling the electro-hydraulic push rod to enable the middling products and the clean coal products to enter the middling bunker or the clean coal bunker.

Technical Field

The invention belongs to the technical field of coal mining, and particularly relates to a coal sorting and transporting system with an improved structure.

Background

When the coal preparation operation of the coal preparation plant is carried out, the gangue, the middlings and the clean coal are mostly selected by adopting a non-pressure feeding three-product cyclone separation process, wherein the transportation of the middlings and the clean coal requires a plurality of transfer bins, so that the material cost and the power consumption during the coal preparation operation are greatly increased, and the middlings transportation system and the clean coal transportation system are fully opened, so that the maintenance amount of the middlings and the clean coal transportation system and the labor intensity of workers are also greatly increased.

Disclosure of Invention

The invention aims to solve the technical problem of providing a coal sorting and transporting system with an improved structure, which can stop a medium coal system and a clean coal system, reduce the maintenance investment of post personnel and equipment and save the power consumption.

In order to achieve the purpose, the invention adopts the technical scheme that:

the invention discloses a coal sorting and transporting system which comprises a cyclone for sorting coal, a coal transporting device, a machine head chute, a medium coal bin and a clean coal bin which are positioned at the bottom of the machine head chute, wherein one side of the cyclone is provided with a raw coal input port, the other corresponding side of the cyclone is provided with a clean coal output port, the bottom of the cyclone is provided with a medium coal output port, one end of the coal transporting device is positioned at the bottom of the clean coal output port and the medium coal output port, and the other end of the coal transporting device is positioned at the top of the machine head chute.

As a further improvement of the invention, the middlings transportation device comprises a middlings transportation belt for long-distance transportation and a clean coal transportation belt for short-distance transportation, the clean coal transportation belt is positioned at the top of the middlings transportation belt, one end of the clean coal transportation belt is positioned at the bottom of a clean coal output port of the cyclone, one end of the middlings transportation belt is positioned at the bottom of a middlings output port of the cyclone, and the other end of the middlings transportation belt is positioned at the top of the nose leakage groove.

As a further improvement of the invention, the machine head leakage groove is provided with an electro-hydraulic push rod for controlling the output of the medium clean coal.

As a further improvement of the invention, a clean coal collecting box and a medium coal collecting box both provided with discharge valves are arranged in the cyclone, the discharge valves of the clean coal collecting box and the medium coal collecting box respectively correspond to a clean coal output port and a medium coal output port of the cyclone, and the medium coal collecting box and the clean coal collecting box form a communicating vessel through mounting pipelines.

The invention also discloses a coal sorting and transporting method suitable for the coal sorting and transporting system, which comprises the following steps:

step 1, sorting raw coal in a cyclone, and sorting clean coal products and middling products;

step 2, enabling the middling product obtained in the step 1 to enter the middling collecting box, enabling the clean coal product to enter the clean coal collecting box, closing a discharge valve of the middling collecting box, enabling the middling product to enter the clean coal collecting box through the pipeline, and enabling the middling product and the clean coal product to be in the clean coal collecting box;

step 3, opening a discharge valve of the clean coal collecting box, and enabling the middling products and the clean coal products in the step S2 to fall into the clean coal conveying belt and fall onto the middling conveying belt after short-distance conveying;

and 4, conveying the middling products and the clean coal products in the step 3 on the middling conveying belt for a relatively long distance, and then enabling the middling products and the clean coal products to fall into a machine head leakage groove, and controlling the electro-hydraulic push rod to enable the middling products and the clean coal products to enter the middling bunker or the clean coal bunker.

By adopting the technical scheme disclosed by the invention, the clean coal collecting box and the medium coal collecting box in the cyclone are communicated, so that the clean coal conveying belt is shortened, and the medium clean coal product is positioned in the clean coal collecting box and directly falls into the medium coal conveying belt after short transportation, thereby simplifying the original coal conveying structure, reducing the power consumption generated in the production process, reducing the investment cost and the maintenance cost of equipment, and simultaneously reducing the number of workers required by the original post and the labor cost of the workers in the production process.

Drawings

FIG. 1 is a schematic structural diagram of a coal sorting and transporting system according to the present invention;

FIG. 2 is a flow diagram of a coal sorting and transporting system of the present invention.

Labeled as: 1. the device comprises a cyclone 2, a raw coal inlet, 3, a clean coal outlet, 4, a middling outlet, 5, a clean coal conveying belt, 6, a middling conveying belt, 7 machine head leakage grooves, 8, a middling bin, 9 and a clean coal bin.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Fig. 1 is a schematic structural diagram of a coal sorting and transporting system of the invention, as shown in the figure:

the invention discloses a coal sorting and transporting system which comprises a cyclone 1 for sorting coal, a coal transporting device, a machine head chute 7, and a middling bunker 8 and a clean coal bunker 9 which are positioned at the bottom of the machine head chute, wherein one side of the cyclone 1 is provided with a raw coal input port 2, the other corresponding side is provided with a clean coal output port 3, the bottom is provided with a middling output port 4, one end of the coal transporting device is positioned at the bottom of the clean coal output port 3 and the middling output port 4, and the other end of the coal transporting device is positioned at the top of the machine head chute 7.

The invention also discloses a coal sorting and transporting method suitable for the coal sorting and transporting system, which comprises the following steps: step 1: the raw coal enters the cyclone 1 for sorting, and clean coal products and medium coal products are sorted out; step 2: the middling product in the step 1 enters a middling collecting box, the clean coal product enters a clean coal collecting box, a discharge valve of the middling collecting box is closed, the middling product enters the clean coal collecting box through a pipeline, and the middling product and the clean coal product are both in the clean coal collecting box; and step 3: opening a discharge valve of the clean coal collecting box, and enabling the middling products and the clean coal products in the step 2 to fall into the clean coal conveying belt and then fall onto the middling conveying belt 6 after short-distance conveying; and 4, step 4: and (3) conveying the middling products and the clean coal products on a middling conveying belt 6 for a relatively long distance and then dropping into a machine head leakage groove 7, and controlling the electro-hydraulic push rod to enable the middling products and the clean coal products to enter a middling bunker 8 or a clean coal bunker 9.

By adopting the technical scheme disclosed by the invention, the clean coal collecting box and the medium coal collecting box in the cyclone 1 are communicated, so that the clean coal conveying belt 5 is shortened, the medium clean coal product is positioned in the clean coal collecting box and directly falls into the medium coal conveying belt 6 after short transportation, the original coal conveying structure is simplified, a large coal conveying system is changed into a small system, the possibility of occurrence of accidents and the power consumption generated in the production process are reduced, the investment cost and the maintenance cost of equipment are also reduced, meanwhile, the number of workers required by the original post is reduced by the simplified structure, and the labor cost of the workers in the production process is reduced.

The invention has been described above with reference to the accompanying drawings, it is obvious that the invention is not limited to the specific implementation in the above-described manner, and it is within the scope of the invention to apply the inventive concept and solution to other applications without substantial modification.