Accumulated coal cleaning device

Abstract

The utility model is suitable for the technical field of accumulated coal cleaning devices, and provides an accumulated coal cleaning device which comprises a belt conveyor. The coal accumulating bin is arranged at the end of the belt conveyor, and the upper end face of the coal accumulating bin is sunken downwards to form a coal containing cavity; the first coal cleaning mechanism is arranged at the front position of the coal accumulating bin; the second coal cleaning mechanism is arranged at the middle position of the coal accumulating bin; the second coal cleaning mechanism comprises two groups of electric push rods and extension brackets arranged at the telescopic ends of the two groups of electric push rods; according to the coal scraping device, coal on a belt can be effectively scraped, loss of the coal and abrasion of equipment are reduced, and meanwhile it is guaranteed that accumulation of the coal and smooth proceeding of follow-up treatment are conducted; and the coal is naturally and smoothly discharged under the action of gravity, and the auxiliary fan accelerates the drying of the accumulated coal, so that the waste of the coal and the blockage of equipment are further avoided, the discharging efficiency is obviously improved, and the overall smoothness and high efficiency of coal treatment are ensured.

Description

TECHNICAL FIELD

[0001] The utility model belongs to coal cleaning device technical field, especially relate to a coal cleaning device. BACKGROUND

[0002] Coal cleaning device plays an indispensable role in coal industry, and they are essential to solve the problem of coal accumulation, in the process of coal mining, processing and transportation, ensure the continuous, stable conveying and efficient cleaning of coal is the key to maintain production efficiency,

[0003] However, the traditional coal conveying system often faces multiple challenges in practical application:

[0004] First, the problem of coal residue is significant, due to the physical properties of coal and the limitations of conveying equipment, coal often remains in large quantities on the surface, corners and gaps of the conveyor, these residues not only cause waste of coal, reduce production efficiency, but also cause serious wear and corrosion to the conveying equipment and its accessories, thus shortening the service life of the equipment,

[0005] Secondly, in the process of coal conveying, due to the lack of timely belt cleaning, the residual coal will continuously rub and collide with the key components of the conveyor, such as the roller, the carrier roller and the scraper, especially when the coal contains a large amount of hard particles or impurities, the wear and damage will be more serious. INVENTION CONTENTS

[0006] The utility model provides a kind of coal cleaning device, to solve the problem of traditional coal conveying system facing coal residue problem seriously, not only waste resources, reduce efficiency, belt cleaning not in time leads to coal and key components continuous friction collision, especially containing hard particle, wear and damage more serious problem.

[0007] The utility model is realized as follows, a kind of coal cleaning device, including belt conveyor;Coal accumulation bin is arranged at the end position of the belt conveyor, the upper end of the coal accumulation bin is concave downward to form a coal-containing cavity;First coal cleaning mechanism is arranged at the front position of the coal accumulation bin;And second coal cleaning mechanism is arranged at the middle position of the coal accumulation bin;Wherein, the second coal cleaning mechanism includes: two groups of electric push rods are symmetrically arranged at the position of the upper surface of the coal accumulation bin, the telescopic end of the electric push rod is arranged vertically upward;Extension bracket is arranged at the telescopic end of the two groups of electric push rods;Same mounting roller is arranged between every two opposite extension brackets, the mounting roller and extension bracket are rotationally connected;Sweeping broom is arranged on the outer surface of the mounting roller, and the length direction of the sweeping broom is consistent with the mounting roller.

[0008] Preferably, the second coal cleaning mechanism further comprises: a servo motor arranged on the outer wall of the extension support; and the output end of the servo motor is fixedly connected with the end of the installation roller.

[0009] Preferably, the first coal cleaning mechanism comprises: a set of installation side plates symmetrically arranged at the front position of the coal accumulation bin; and a coal cleaning scraper is arranged between the two installation side plates and in sliding fit with the installation side plates.

[0010] Preferably, a plurality of reset springs are arranged at the bottom position of the coal cleaning scraper, a damper is arranged in each of the reset springs, and the other end of each of the reset springs is connected with the coal accumulation bin.

[0011] Preferably, the end of the coal cleaning scraper opposite to the belt conveyor is gradually inwardly inclined to form a radially decreasing slope.

[0012] Preferably, an auxiliary fan is arranged at the position of the coal accumulation bin away from the coal cleaning scraper, and the air outlet direction of the auxiliary fan is arranged to be inclined upward.

[0013] Preferably, a dust blocking filter screen is arranged on the auxiliary fan.

[0014] Preferably, a discharge port is arranged at the end of the coal accumulation bin away from the first coal cleaning mechanism and in communication with the coal containing cavity.

[0015] Preferably, a material guide plate is arranged in the coal containing cavity, and the side of the material guide plate adjacent to the discharge port is arranged to be a radially decreasing slope.

[0016] Compared with the prior art, the embodiment of the present application has the following beneficial effects:

[0017] Firstly, the device realizes efficient coal cleaning through the synergistic effect of the first coal cleaning mechanism and the second coal cleaning mechanism; the first coal cleaning mechanism effectively scrapes off the coal adhering to the belt through the close contact between the coal cleaning scraper and the belt; at the same time, the reset spring ensures that the coal cleaning scraper can quickly and smoothly reset after scraping off the coal, thereby improving the cleaning efficiency; the second coal cleaning mechanism further strengthens the cleaning effect of the bottom of the belt through the omnibearing cleaning of the installation roller and the cleaning brush, so that more coal is collected into the coal accumulation bin; this cleaning process not only significantly reduces the loss of coal and avoids the potential wear of the equipment caused by the belt residues, but also ensures the accumulation and subsequent processing of the coal.

[0018] Secondly, the device ensures smooth and efficient coal treatment; specifically, the coal can flow to the discharge port naturally and smoothly under the action of gravity, which reduces the accumulation and dead angle of the coal in the coal storage cavity, thereby effectively avoiding the waste of coal and the possible equipment blockage problem; at the same time, the discharge efficiency is also significantly improved; in addition, the setting of the auxiliary fan further accelerates the drying process of the accumulated coal, effectively prevents the coal from adhering to the belt conveyor due to moisture, and further ensures the smooth and efficient coal treatment. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a three-dimensional structure schematic diagram of the coal storage bin of the utility model;

[0020] Figure 2 is a three-dimensional structure schematic diagram of the coal storage bin of the utility model;

[0021] Figure 3 is a plan view of the coal storage bin of the utility model;

[0022] Figure 4 is a side view of the utility model;

[0023] Figure 5 is a three-dimensional structure schematic diagram of the utility model;

[0024] In the figure: 1, belt conveyor; 2, coal storage bin; 3, electric push rod; 4, extension support; 5, mounting roller; 6, cleaning broom; 7, servo motor; 8, mounting side plate; 9, coal cleaning scraper; 10, reset spring; 11, auxiliary fan; 12, dust blocking filter screen; 13, discharge port; 14, material guide plate. DETAILED DESCRIPTION

[0025] 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 this application belongs; the terminology used in the description of the specification of the application is only for the purpose of describing specific embodiments and is not intended to limit the application; the terms in the specification and claims of the application and the above description of the drawings include and have as well as any modification thereof, it is intended to cover non-exclusive inclusion. The terms first, second, etc. in the specification and claims or the above description of the drawings are used to distinguish different objects, not to describe a specific order.

[0026] In this text, the reference to the embodiment means that the specific features, structures or characteristics described in conjunction with the embodiment can be included in at least one embodiment of the application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment to other embodiments. The skilled person in the art explicitly and implicitly understands that the embodiments described herein can be combined with other embodiments.

[0027] The utility model embodiment provides a kind of coal accumulation cleaning device, as shown in Figures 1-5 It is shown, including belt conveyor 1;Accumulation bin 2 is arranged at the end position of the belt conveyor 1, the upper end surface of the accumulation bin 2 is concave downward and forms coal storage cavity;First coal cleaning mechanism is arranged at the front position of the accumulation bin 2;And second coal cleaning mechanism is arranged at the middle position of the accumulation bin 2;Wherein, the second coal cleaning mechanism includes: two groups of electric push rods 3 are symmetrically arranged at the both sides of the upper surface of the accumulation bin 2, and the telescopic end of the electric push rod 3 is arranged vertically upward;Extension bracket 4 is arranged at the telescopic end of two groups of the electric push rod 3;Same mounting roller 5 is arranged between every two opposite extension brackets 4, and the mounting roller 5 is rotatably connected with extension bracket 4;The outer surface of the mounting roller 5 is provided with cleaning broom 6, and the length direction of the cleaning broom 6 is consistent with the mounting roller 5.

[0028] It should be noted that, since the traditional coal conveying system is faced with the problem of serious coal residue, not only waste resources, reduce efficiency, belt cleaning is not timely, leading to continuous friction and collision of coal and key components, especially when containing hard particles, the problem of more serious wear and tear, the present scheme improves the overall efficiency of coal handling by efficient coal cleaning system and smooth coal discharge design;Specifically, the synergistic effect of the first coal cleaning mechanism and the second coal cleaning mechanism ensures that the coal on the belt is thoroughly cleaned, reduces the loss of coal and the potential wear and tear of the equipment, while ensuring the accumulation of coal and the smooth progress of subsequent processing;And the natural and smooth discharge of coal under the action of gravity, and the acceleration of auxiliary fan 11 to the drying process of accumulated coal, effectively avoids the problems of coal accumulation, waste and equipment blockage, further improves the discharge efficiency of coal.

[0029] Specifically, in the present embodiment, the present scheme mainly includes belt conveyor 1;Belt conveyor 1 is responsible for continuously conveying coal to the designated place;The upper end surface of the accumulation bin 2 is designed as a downward concave coal storage cavity for temporarily storing and accumulating coal;

[0030] In the front part of the accumulation bin 2, the first coal cleaning mechanism is installed, which undertakes the task of preliminary cleaning of coal;Second coal cleaning mechanism is arranged in the middle of the accumulation bin 2;The second coal cleaning mechanism is composed of two groups of electric push rods 3, and the two groups of electric push rods 3 are symmetrically installed on the both sides of the upper surface of the accumulation bin 2, and the telescopic end of the electric push rod 3 is vertically upward, which can adjust the height according to the actual demand;Extension bracket 4 is connected to the telescopic end of the electric push rod 3, which provides stable support for the installation roller 5;Between every two opposite extension brackets 4, a mounting roller 5 is rotatably arranged, which enables the mounting roller 5 to rotate freely under external force;

[0031] Especially crucial is, on the outer surface of the installation roller 5, installed cleaning broom 6, when the belt conveyor 1 continues to run, the belt will drive to the bottom, at this time, the cleaning broom 6 with the rotation of the installation roller 5, the outer surface of the belt is effectively cleaned; This design can ensure that the bottom of the belt conveyor 1 transmission belt is thoroughly cleaned, the accumulated coal adhered on the belt is cleaned into the accumulated coal bin 2, so as to further improve the cleaning effect.

[0032] Further preferred embodiments of the utility model for, as shown in Figure 2 The second coal cleaning mechanism further comprises: a servo motor 7 arranged on the outer side wall of the extension bracket 4; and the output end of the servo motor 7 is fixedly connected with the end portion of the installation roller 5 through keying.

[0033] In the embodiment, the servo motor 7 is used to drive the rotation of the installation roller 5, and through the rotation of the installation roller 5, the cleaning broom 6 is driven to clean the accumulated coal on the belt, and the design ensures that the cleaning broom 6 can accurately and effectively remove the accumulated coal on the belt.

[0034] Further preferred embodiments of the utility model for, as shown in Figure 1 The first coal cleaning mechanism comprises: a group of installation side plates 8 symmetrically arranged at the front position of the accumulated coal bin 2; and one cleaning scraper 9 is arranged between the two installation side plates 8 and in sliding fit with the installation side plates 8.

[0035] In the embodiment, during the continuous operation of the belt conveyor 1, the belt is continuously driven to the bottom area of the path, at this time, the cleaning scraper 9 located at the front position of the accumulated coal bin 2 is used to scrape the passing belt surface, which effectively removes the large impurities and accumulated coal adhered on the belt, so that the accumulated coal falls into the accumulated coal bin 2, thereby maintaining the cleanliness and conveying efficiency of the belt.

[0036] Further preferred embodiments of the utility model for, as shown in Figure 1 The bottom position of the cleaning scraper 9 is provided with a plurality of return springs 10, a plurality of dampers are arranged in the plurality of return springs 10, and the other end of the plurality of return springs 10 is connected with the accumulated coal bin 2.

[0037] In the embodiment, when the coal cleaning scraper 9 contacts with the belt and scrapes off the coal, a certain resistance and deformation will be generated, at this time, the reset spring 10 will play an elastic role to absorb and store the deformation energy, once the scraping action is completed, the reset spring 10 will release the stored energy to push the coal cleaning scraper 9 to reset quickly so as to perform the next scraping action, in order to further improve the stability and durability of the coal cleaning scraper 9, the designer further sets a damper in the reset spring 10, the main role of the damper is to slow down the vibration and impact of the reset spring 10 when releasing the energy, so that the reset process of the coal cleaning scraper 9 is more stable and controllable, so that the service life of the reset spring 10 and the coal cleaning scraper 9 can be prolonged, and the stability and working efficiency of the whole coal accumulation cleaning device can be improved.

[0038] As shown in the further preferred embodiment of the utility model, Figure 4 The end position of the coal cleaning scraper 9 opposite to the belt conveyor 1 is gradually inclined inward to form a radial decreasing slope.

[0039] In the embodiment, a certain friction will be generated between the belt and the coal cleaning scraper 9 during the operation of the belt conveyor 1, the design of the slope can reduce the contact area between the scraper and the belt, thereby reducing the friction force and the degree of wear, in addition, the gradual reduction of the slope also makes the stress of the scraper more uniform when scraping the coal, avoiding the situation of local excessive wear.

[0040] As shown in the further preferred embodiment of the utility model, Figure 1 The side position of the coal accumulation bin 2 away from the coal cleaning scraper 9 is provided with an auxiliary fan 11, and the air outlet direction of the auxiliary fan 11 is inclined upward.

[0041] In the embodiment, when the cleaning broom 6 cleans the coal on the belt, the auxiliary fan 11 can accelerate the drying of the accumulated coal to avoid its adhesion on the belt conveyor 1.

[0042] As shown in the further preferred embodiment of the utility model, Figure 1 The auxiliary fan 11 is provided with a dustproof filter screen 12.

[0043] In the embodiment, the dustproof filter screen 12 can filter out these impurities to protect the fan blades from damage, and at the same time, it can also prevent dust particles from accumulating in the fan to cause the performance of the fan to decline or fail.

[0044] As shown in the further preferred embodiment of the utility model, Figure 5 The end position of the coal accumulation bin 2 away from the first coal cleaning mechanism is provided with a discharge port 13 communicating with the coal containing cavity.

[0045] In the embodiment, the coal material will accumulate in the coal storage cavity, and the coal material in the coal storage bin 2 will gradually increase with the continuous input and cleaning of the coal material, and when the amount reaches a certain amount, the coal material can be discharged through the discharge port 13.

[0046] In further preferable embodiments of the utility model, as shown in the drawings, Figure 4 The coal storage cavity is provided with a guide plate 14, and one side of the guide plate 14 adjacent to the discharge port 13 is provided with a radial decreasing slope.

[0047] In the embodiment, by designing the guide plate 14 as a radial decreasing slope, it can be ensured that the coal material can flow smoothly to the discharge port 13 under the action of gravity, and this design helps to reduce the accumulation and dead angle of the coal material in the coal storage cavity and improve the discharge efficiency of the coal material.

[0048] Working principle: the belt conveyor 1 of the device is responsible for continuously and stably conveying the coal material to the designated location; in order to effectively collect the residual coal material on the belt conveyor 1, the end position is provided with a coal storage bin 2, and the upper end surface of the coal storage bin 2 presents a downward concave coal storage cavity, which not only increases the storage volume of the coal material, but also facilitates the accumulation and subsequent treatment of the coal material;

[0049] In the front part of the coal storage bin 2, a first coal cleaning mechanism is installed; when the belt on the belt conveyor 1 is conveyed to this position, the coal cleaning scraper 9 will be in close contact with the belt, and the coal material adhering to the belt will be scraped off by the edge thereof; during the scraping process, the coal cleaning scraper 9 will be subjected to a certain resistance and deformation, but at this time, the return spring 10 will quickly exert its elastic action to absorb and store this part of deformation energy; once the scraping action is completed, the return spring 10 will release the stored energy to push the coal cleaning scraper 9 to reset quickly and prepare for the next scraping action; in order to further improve the stability and durability of the coal cleaning scraper 9, a damper is arranged in the return spring 10; the damper can slow down the vibration and impact of the return spring 10 when releasing energy, so that the resetting process of the coal cleaning scraper 9 is more stable and controllable; this design not only prolongs the service life of the return spring 10 and the coal cleaning scraper 9, but also significantly improves the stability and working efficiency of the entire coal storage cleaning device;

[0050] In addition, in order to further improve the cleaning effect, the middle part of the coal accumulation bin 2 is also provided with a second coal cleaning mechanism; the electric push rod 3 is symmetrically installed on the upper surface of the coal accumulation bin 2, and the telescopic ends thereof are vertically upward, and the height thereof can be flexibly adjusted according to actual needs; on the telescopic end of the electric push rod 3, a stable extension support 4 is connected, which provides reliable support for the installation roller 5; between every two opposite extension supports 4, an installation roller 5 is rotatably arranged, which enables the installation roller 5 to freely rotate under the driving action of the servo motor 7; on the outer surface of the installation roller 5, the cleaning broom 6 is uniformly installed; when the belt conveyor 1 continuously runs, the belt will be transmitted to the bottom, at this time, the cleaning broom 6 sweeps the outer surface of the belt in all directions along with the rotation of the installation roller 5; this design can ensure that the belt at the bottom of the belt conveyor 1 is thoroughly cleaned when the belt conveyor 1 is driven, and the accumulated coal adhering to the belt is swept into the coal accumulation bin 2;

[0051] In order to assist the cleaning process, the side of the coal accumulation bin 2 away from the first coal cleaning mechanism is also provided with an auxiliary fan 11; the auxiliary fan 11 can accelerate the drying of the accumulated coal, and avoid its adhesion to the belt conveyor 1; along with the continuous input and cleaning of the coal, the coal in the coal accumulation bin 2 will gradually increase; in order to facilitate the discharge of the coal, a discharge port 13 communicating with the coal containing cavity is formed at the end position of the coal accumulation bin 2; at the same time, a guide plate 14 is arranged in the coal containing cavity, which can ensure that the coal can flow smoothly to the discharge port 13 along the inclined surface under the action of gravity, thereby effectively reducing the accumulation and dead angle of the coal in the coal containing cavity, and improving the discharge efficiency of the coal.

[0052] It should be noted that, for the foregoing embodiments, in order to simply describe, they are all expressed as a series of action combinations, but those skilled in the art should know that the present application is not limited by the described action sequence, because according to the present application, certain steps can be performed in other sequences or simultaneously. Secondly, those skilled in the art should know that the embodiments described in the specification all belong to preferred embodiments, and the actions and modules involved are not necessarily necessary for the present application.

[0053] In several embodiments provided by the present application, it should be understood that the disclosed device can be implemented by other means. For example, the device embodiments described above are only illustrative, for example, the division of the above units, actual implementation can have another division way, for example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point, the coupling or communication connection between the displayed or discussed interfaces, devices or units can be indirect coupling or communication connection between interfaces, devices or units, which can be electrical or other forms.

[0054] The units described as separate components above can or can not be physically separate, and the components displayed as units can or can not be physical units, that is, can be located in one place, or can be distributed to multiple network units. Part or all of the units can be selected to achieve the purpose of the embodiment scheme according to actual needs.

[0055] The above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the protection scope of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative labor belong to the scope to be protected by the present application. Although the present application has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add or delete or make other adjustments to the features in each embodiment of the present application according to the circumstances without creative labor, so as to obtain different other technical solutions which do not deviate from the concept of the present application in essence. These technical solutions also belong to the scope to be protected by the present application.

Claims

1. A coal accumulation cleaning device characterized by comprising: The utility model relates to a coal conveying device, including: A belt conveyor (1); A coal storage bin (2) is arranged at the end position of the belt conveyor (1), and the upper end of the coal storage bin (2) is concave downward to form a coal storage cavity; A first coal cleaning mechanism is arranged at the front position of the coal storage bin (2); And A second coal cleaning mechanism is arranged at the middle position of the coal storage bin (2); The second coal cleaning mechanism includes: Two groups of electric push rods (3) are symmetrically arranged at the two sides of the upper surface of the coal storage bin (2), and the telescopic ends of the electric push rods (3) are arranged vertically upward; Extension supports (4) are arranged at the telescopic ends of the two groups of electric push rods (3); An installation roller (5) is arranged between every two opposite extension supports (4), and the installation roller (5) is rotationally connected with the extension support (4); A cleaning broom (6) is arranged on the outer surface of the installation roller (5), and the length direction of the cleaning broom (6) is consistent with that of the installation roller (5).

2. A coal accumulation cleaning device according to claim 1, characterized in that The second coal cleaning mechanism further includes: A servo motor (7) is arranged on the outer side wall of the extension support (4); The output end of the servo motor (7) is fixedly connected with the end of the installation roller (5) through a key.

3. A coal accumulation cleaning device according to claim 1, characterized in that The first coal cleaning mechanism includes: A group of installation side plates (8) are symmetrically arranged at the front position of the coal storage bin (2); A coal cleaning scraper (9) is arranged between the two installation side plates (8), and the coal cleaning scraper (9) is slidingly connected with the installation side plate (8).

4. A coal accumulation cleaning device according to claim 3, characterized in that A plurality of reset springs (10) are arranged at the bottom position of the coal cleaning scraper (9), a damper is arranged in each reset spring (10), and the other end of each reset spring (10) is connected with the coal storage bin (2).

5. A coal accumulation cleaning device according to claim 4, characterised in that The end position of the coal cleaning scraper (9) opposite to the belt conveyor (1) is gradually inclined inward, forming a radial decreasing slope.

6. A coal accumulation cleaning device according to claim 5, characterised in that An auxiliary fan (11) is arranged at the position of the coal storage bin (2) away from the coal cleaning scraper (9), and the air outlet direction of the auxiliary fan (11) is inclined upward.

7. A coal accumulation cleaning device according to claim 6, characterised in that A dust blocking filter screen (12) is arranged on the auxiliary fan (11).

8. A coal accumulation cleaning device according to claim 6, characterized in that A discharge port (13) is arranged at the end position of the coal storage bin (2) away from the first coal cleaning mechanism, and the discharge port (13) is connected with the coal storage cavity.

9. A coal accumulation cleaning device according to claim 8, characterised in that A guide plate (14) is arranged in the coal storage cavity, and the side of the guide plate (14) adjacent to the discharge port (13) is arranged in a radial decreasing slope.

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