Bulk material conveying system of circular cooler

Abstract

The utility model provides an annular cooler bulk material conveying system which comprises a wind conveyor, a conveying pipeline, a discharge hopper and a dust removal device, the wind conveyor is arranged at the head end of the conveying pipeline, the discharge hopper is arranged at the tail end of the conveying pipeline, and a plurality of air bellow ash hoppers are connected along the line of the conveying pipeline; and the dust removal device is connected with the discharge hopper. The pneumatic conveyor supplies air into the discharge hopper, and the dust removal device draws air from the discharge hopper, so that the pressure of conveyed gas can be balanced, raised dust in the material conveying process can be extracted, the raised dust is prevented from overflowing during discharging, the dust removal cost is greatly reduced, and the dust removal efficiency is improved. The full-closed conveying process is achieved, raised dust is avoided, and bulk materials are fully automatically, efficiently and stably collected and conveyed.

Description

TECHNICAL FIELD

[0001] The utility model relates to sintering ring cooling machine technical field, concretely relates to a ring cooling machine bulk material conveying system. BACKGROUND

[0002] When the ring cooling machine is operated, with the rotation of the ring cooling machine trolley, a part of fine ore will fall into the air box ash bucket from the trolley grate plate gap under the action of the cooling fan. In order to collect the scattered materials in the working process of the ring cooling machine, the prior art mainly has two collection and transportation modes: one is to use a bulk material electric trolley, but this form is difficult to dedust and requires high automatic control, and in the actual application process, because the bulk material transportation is not timely, there is often bulk material accumulation under the ash bucket, which needs to be cleaned by manual regularly, and the environment is greatly polluted; the other is to use a ring belt, which is simple to control, sets a cover plate above the belt to realize closed treatment of the belt, and sets a dust removal point above the cover plate to meet the environmental protection requirements, but this mode needs more dust removal points; at the same time, both the above two forms need to be provided with double-layer ash discharge valves under each air box, and need to be provided with a pit, so that the required installation space is large.

[0003] In view of the above, there is an urgent need for a ring cooling machine bulk material conveying system to solve the problems existing in the prior art. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a ring cooling machine bulk material conveying system, and aims at solving the problems existing in the prior art, and the specific technical scheme is as follows:

[0005] A ring cooling machine bulk material conveying system, which comprises a wind power conveyor, a conveying pipeline, a discharge hopper and a dust removal device, the first end of the conveying pipeline is provided with the wind power conveyor, the tail end of the conveying pipeline is provided with the discharge hopper, and the conveying pipeline is connected with a plurality of air box ash buckets along the line; the dust removal device is connected with the discharge hopper.

[0006] Preferably, the conveying pipeline is in the form of a circular ring, the first end of which is located at the feeding end of the ring cooling machine, and the tail end of which is located at the discharging end of the ring cooling machine.

[0007] Preferably, the lower portion of the discharge hopper is provided with a belt conveyor.

[0008] Preferably, the discharge hopper is in the form of a full-sealed structure, the upper end of the discharge hopper is provided with a feeding port and a dust removal port, and the lower end of the discharge hopper is provided with a discharging port; wherein the tail end of the conveying pipeline is connected with the feeding port, the dust removal device is connected with the dust removal port, and the discharging port is provided with an ash discharge valve.

[0009] Preferably, the inside of the discharge hopper is provided with a stacking plate, and the stacking plate is located directly below the feeding port.

[0010] Preferably, the tail end of the conveying pipeline is provided with a wear-resistant elbow, and the inlet is connected through the wear-resistant elbow.

[0011] Preferably, the air box hopper is communicated with the conveying pipeline through a connecting pipe.

[0012] Preferably, the length of the connecting pipe is 400-600mm.

[0013] Preferably, the diameter of the connecting pipe is 300-500mm, and the diameter of the conveying pipeline is 500-700mm.

[0014] The technical scheme of the utility model has the following beneficial effects:

[0015] The ring cooling machine bulk material conveying system in the utility model comprises a wind force conveyor, a conveying pipeline, a discharge hopper and a dust removal device, the wind force conveyor sends air into the discharge hopper, and the dust removal device simultaneously draws air from the discharge hopper, so that the conveying gas pressure can be balanced, the dust in the material conveying process can be drawn, dust overflow during discharging is avoided, the dust removal cost is greatly reduced, the conveying process is fully closed, there is no dust, and the bulk material is collected and transported automatically, efficiently and stably; meanwhile, the structure and control of the ring cooling machine bulk material conveying system in the utility model are simple, a pit does not need to be arranged, the construction cost is reduced, the air box hopper is connected with the conveying pipeline through a connecting pipe, the ash discharge valve between the air box hopper and the conveying pipeline is omitted, and the installation, interlocking control and maintenance cost of the ash discharge valve are reduced; finally, the tail end of the conveying pipeline is connected with the inlet of the discharge hopper through a wear-resistant elbow, the inside of the discharge hopper is provided with a stacking plate, the wear of the inner wall of the discharge hopper caused by the material is reduced to the maximum through the double measures, the speed of the bulk material entering the discharge hopper can be reduced through the wear-resistant elbow, and the stacking plate bears the wear caused by the impact of the bulk material entering the discharge hopper, so that the service life of the conveying system is prolonged, and the late maintenance and maintenance cost are reduced.

[0016] In addition to the objects, features and advantages described above, the utility model has other objects, features and advantages. BRIEF DESCRIPTION OF DRAWINGS

[0017] The drawings constituting a part of the application are used to provide further understanding of the utility model, and the schematic embodiments of the utility model and the description thereof are used to explain the utility model, and do not constitute improper limitation on the utility model.

[0018] Figure 1 It is the structure schematic view of the ring cooling machine bulk material conveying system in the utility model.

[0019] Figure 2is a top view of the ring cooling machine in the utility model;

[0020] Wherein, 1, wind conveyor, 2, conveying pipeline, 2.1, wear elbow, 3, wind box hopper, 4, connecting pipe, 5, discharge hopper, 6, stacking plate, 7, ash valve, 8, belt conveyor, 9, dust removal device. DETAILED DESCRIPTION

[0021] In order to facilitate understanding of the utility model, the utility model will be described more comprehensively below, and the preferred embodiments of the utility model are given. However, the utility model can be realized in many different forms, and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the utility model belongs. The terms used in the specification of the utility model herein are only for the purpose of describing specific embodiments and are not intended to limit the utility model.

[0023] Embodiment:

[0024] Referring to Figures 1-2 , the embodiment provides a ring cooling machine bulk material conveying system, which comprises a wind conveyor 1, a conveying pipeline 2, a discharge hopper 5 and a dust removal device 9, the first end of the conveying pipeline 2 is provided with the wind conveyor 1, the tail end of the conveying pipeline 2 is provided with the discharge hopper 5, and the conveying pipeline 2 is connected with a plurality of wind box hoppers 3 along the line (that is, a plurality of wind box hoppers 3 are connected on the conveying pipeline 2); the dust removal device 9 is connected with the discharge hopper 5.

[0025] Preferably, the wind conveyor 1 is a conveying fan, which outputs gas to collect the bulk material in each wind box hopper 3 into the discharge hopper 5 through the wind conveyor 1; in the working process, the dust removal device 9 works to carry out dust removal work on the discharge hopper 5, which can effectively prevent dust raising.

[0026] As Figure 2 shown, the conveying pipeline 2 is in the shape of a ring, the first end of which is located at the feeding end of the ring cooling machine, and the tail end of which is located at the discharging end of the ring cooling machine, so that the length of the conveying pipeline 2 is matched with the ring cooling machine, which can collect the bulk material in each wind box hopper and at the same time can shorten the length of the conveying pipeline to the maximum extent, reduce the cost of the conveying system and prevent the need for a larger power wind conveyor 1 due to the excessive length of the conveying pipeline.

[0027] As Figure 1As shown, the lower part of the discharge hopper 5 is provided with a belt conveyor 8, through which the bulk material collected in the discharge hopper can be concentrated and transported to the destination, realizing the collection and transportation of the bulk material.

[0028] Further, the discharge hopper 5 in the embodiment is in a fully sealed structure, the upper end of the discharge hopper 5 is provided with a feeding port and a dust removal port, and the lower end is provided with a discharging port; wherein the tail end of the conveying pipeline 2 is connected with the feeding port, the dust removal device 9 is connected with the dust removal port, and the discharging port is provided with a dust valve 7. Further, the dust valve is preferably a double-layer dust valve, which realizes the transportation of the bulk material collected in the discharge hopper to the belt conveyor 8 when the dust valve is opened. Since the discharge hopper 5 is in a fully sealed structure, combined with the dust removal device 9, the bulk material conveying system of the rotary cooler in the embodiment can realize fully closed, dust-free, fully automatic, high-efficiency and stable collection and transportation of the bulk material.

[0029] Referring to Figure 1 , the inside of the discharge hopper 5 is provided with a stacking plate 6, which is located directly below the feeding port; the stacking plate 6 arranged directly below the feeding port can reduce the abrasion of the material to the inner wall of the discharge hopper, the material conveyed by the conveying pipeline 2 will first impact on the stacking plate 6, and then accumulate in the discharge hopper, the stacking plate 6 can bear the abrasion caused by the impact of the material, and has the effect of protecting the discharge hopper.

[0030] Referring to Figure 1 , the tail end of the conveying pipeline 2 is provided with a wear-resistant elbow 2.1, which is connected with the feeding port; through the wear-resistant elbow 2.1, the speed of the bulk material entering the discharge hopper can be reduced, so as to reduce the abrasion of the bulk material to the inside of the discharge hopper.

[0031] Further, the wind box hopper 3 is communicated with the conveying pipeline 2 through the connecting pipe 4, and the connecting pipe 4 is used to connect the wind box hopper and the conveying pipeline 2 in the embodiment, avoiding the installation and maintenance cost of the dust valve.

[0032] Preferably, the length of the connecting pipe 4 is 400-600mm, and the length of the connecting pipe 4 arranged in the embodiment is 500mm. Further preferably, the pipe diameter of the connecting pipe 4 is 300-500mm, and the pipe diameter of the conveying pipeline 2 is 500-700mm, the pipe diameter of the connecting pipe arranged in the embodiment is 400mm, and the pipe diameter of the conveying pipeline 2 is 600mm. Further, in actual application, the pipe diameter of the connecting pipe is generally not equal to the pipe diameter of the conveying pipeline 2, that is, the pipe diameter of the conveying pipeline is greater than the pipe diameter of the connecting pipe.

[0033] Preferably, the dust removal device 9 is the prior art, and the dust removal device 9 generally includes a dust removal fan and a dust removal pipeline, the dust removal fan is connected to the dust removal port through the dust removal pipeline, dust is adsorbed by the dust removal fan to achieve the effect of dust suppression. The air conveyor sends air to the discharge hopper, and the dust removal device extracts air from the discharge hopper. This arrangement can balance the gas pressure of the conveying process, extract dust in the conveying process, avoid dust overflow during discharge, and greatly reduce the cost of dust removal.

[0034] The technical scheme of the embodiment is applied, specifically:

[0035] During the operation of the circular cooler, the air conveyor 1 and the dust removal device 9 are turned on. The bulk material that leaks from the pallet grate falls from the air box ash bucket 3 through the connecting pipe 4 into the conveying pipeline 2. The gas blown out by the air conveyor 1 drives the bulk material to be transported to the discharge hopper 5. At this time, the ash discharge valve 7 is closed to achieve the collection of the bulk material. When the bulk material in the discharge hopper 5 reaches a certain height, the air conveyor 1 is turned off and the dust removal device 9 is kept on. The ash discharge valve 7 is opened to discharge the bulk material in the discharge hopper 5 to the belt conveyor 8.

[0036] The technical scheme of the embodiment is applied, and the effect is:

[0037] The bulk material conveying system of the circular cooler in the embodiment includes the air conveyor 1, the conveying pipeline 2, the discharge hopper 5, and the dust removal device 9. The air conveyor 1 sends air to the discharge hopper 5, and the dust removal device extracts air from the discharge hopper. This arrangement can balance the gas pressure of the conveying process, extract dust in the conveying process, avoid dust overflow during discharge, greatly reduce the cost of dust removal, achieve fully enclosed, dust-free, fully automatic, efficient, and stable collection and transportation of bulk material during the conveying process. At the same time, the structure and control of the bulk material conveying system of the circular cooler in the embodiment are simple, and a pit does not need to be set up, which reduces the cost of civil construction. The air box ash bucket is connected to the conveying pipeline through the connecting pipe, which eliminates the need for an ash discharge valve between the air box ash bucket and the conveying pipeline, reduces the installation, interlocking control, and maintenance costs of the ash discharge valve. Finally, the bulk material conveying system of the circular cooler is connected to the inlet of the discharge hopper through a wear-resistant elbow at the tail end of the conveying pipeline. The inside of the discharge hopper 5 is provided with a stacking plate 6. Through the double measures, the wear of the inner wall of the discharge hopper caused by the material is minimized. The wear-resistant elbow 2.1 can reduce the speed of the bulk material entering the discharge hopper, and the stacking plate 6 can withstand the wear caused by the impact of the material entering the discharge hopper. In this way, the service life of the conveying system can be prolonged, and the cost of later maintenance and repair can be reduced.

[0038] The above merely describes preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A ring cooler bulk material conveying system, characterized in that, The device comprises a pneumatic conveyor (1), a conveying pipeline (2), a discharge hopper (5) and a dust removal device (9), the conveying pipeline (2) is provided with the pneumatic conveyor (1) at the front end, the conveying pipeline (2) is provided with the discharge hopper (5) at the tail end, and the conveying pipeline (2) is connected with a plurality of wind box ash hoppers (3) along the line; the dust removal device (9) is connected with the discharge hopper (5).

2. The ring cooler bulk material conveying system of claim 1, wherein, The conveying pipeline (2) is in a circular ring shape, the front end is located at the feeding end of the ring cooler, and the tail end is located at the discharging end of the ring cooler.

3. The ring cooler bulk material conveying system of claim 1, wherein, A belt conveyor (8) is arranged below the discharge hopper (5).

4. The ring cooler bulk material conveying system of claim 1, wherein, The discharge hopper (5) is in a fully sealed structure, the upper end of the discharge hopper (5) is provided with a feeding port and a dust removal port, and the lower end is provided with a discharging port; wherein the tail end of the conveying pipeline (2) is connected with the feeding port, the dust removal device (9) is connected with the dust removal port, and the discharging port is provided with an ash discharge valve (7).

5. The ring cooler bulk material conveying system of claim 4, wherein, The discharge hopper (5) is internally provided with a stacking plate (6), and the stacking plate (6) is located directly below the feeding port.

6. The ring cooler bulk material conveying system of claim 4, wherein, The tail end of the conveying pipeline (2) is provided with a wear-resistant elbow (2.1), and the wear-resistant elbow (2.1) is connected with the feeding port.

7. The ring cooler bulk material conveying system according to any one of claims 1 to 6, characterized in that The wind box ash hopper (3) is communicated with the conveying pipeline (2) through a connecting pipe (4).

8. The ring cooler bulk material conveying system of claim 7, wherein, The length of the connecting pipe (4) is 400-600mm.

9. The ring cooler bulk material conveying system of claim 7, wherein, The pipe diameter of the connecting pipe (4) is 300-500mm, and the pipe diameter of the conveying pipeline (2) is 500-700mm.

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