Conveyor roller and coal conveyor

Abstract

The present disclosure relates to a conveyor roller and a coal conveyor, wherein the conveyor roller comprises a roller body and a plurality of air guides; the roller body is used to support a conveyor belt, the plurality of air guides are distributed on the roller body at intervals along the circumference of the roller body, the air guides at least partially protrude from the outer peripheral surface of the roller body, an exhaust groove opening toward the conveyor belt is formed between the side walls of the adjacent air guides and the axial surface of the roller body, the air guide is provided with an air flow channel, the air inlet of the air flow channel faces the axial direction of the roller body and is suitable for connecting an air supply pipe, and the air outlet of the air flow channel is provided on the side wall of the air guide and connected to the exhaust groove. High-pressure gas is blown into the air flow channel of the air supply pipe box, and the high-pressure gas is blown into the exhaust groove, so that the colloid and coal powder on the wall of the exhaust groove and the conveyor belt corresponding to the exhaust groove are blown off and taken away, thereby achieving the effect of cleaning the conveyor roller and avoiding the wear of the conveyor belt by the protrusions formed after the colloid and coal powder solidify.

Description

Technical Field

[0001] The present disclosure relates to the technical field of coal conveying equipment, and in particular to a conveying roller and a coal conveyor. Background Art

[0002] The coal powder in thermal power plants is usually transported by belt-type coal conveyors. Since the conveyor belts of coal conveyors are usually made of rubber, some colloid will adhere to the surface of the conveyor rollers after aging. After the coal conveyor has been running for a long time, the colloid will mix and bond with the coal powder raised on the conveyor belt, forming bulges on the surface of the conveyor rollers, resulting in an uneven surface of the conveyor rollers, which in turn causes the conveyor belts to wear in the process of driving the conveyor belts. Utility Model Content

[0003] The purpose of the present disclosure is to provide a conveying roller and a coal conveyor, wherein the conveying roller can solve the technical problems in the related art.

[0004] In order to achieve the above-mentioned purpose, the present disclosure provides a conveying roller in a first aspect, which comprises a roller body and a plurality of air guides; the roller body is used to support a conveyor belt, and the plurality of air guides are distributed on the roller body at intervals along the circumference of the roller body, the air guides at least partially protrude from the outer circumferential surface of the roller body, and an exhaust groove opening toward the conveyor belt is formed between the side walls of adjacent air guides and the axial surface of the roller body, the air guide is provided with an air flow channel, the air inlet of the air flow channel is oriented toward the axial direction of the roller body and is suitable for connecting an air supply pipe, and the air outlet of the air flow channel is provided on the side wall of the air guide and connected to the exhaust groove.

[0005] Optionally, the air flow channel includes a main channel and a plurality of branch channels connected to the main channel, the air inlet is arranged in the main channel, and one end of each branch channel away from the main channel constitutes the air outlet.

[0006] Optionally, the branch channel includes at least one first branch channel and at least one second branch channel, and the air outlet of the first branch channel and the air outlet of the second branch channel are respectively arranged on the opposite side walls of the air guide and connected to different exhaust grooves.

[0007] Optionally, a flexible contact strip is installed at one end of the air guide away from the roller body, and the flexible contact strip is used to contact the conveyor belt.

[0008] Optionally, one of a slot and a protrusion is provided at one end of the air guide member facing the contact strip, and the other of the slot and the protrusion is provided at one end of the contact strip facing the air guide member, and the protrusion is suitable for being snap-fitted and fixed in the slot.

[0009] Optionally, along the direction from the bottom of the slot to the slot opening of the slot, the width of the slot gradually decreases.

[0010] Optionally, a support bar is provided between any two adjacent air guides, the support bar is installed on the outer circumferential surface of the roller body, and one end of the support bar away from the roller body and one end of the contact bar away from the roller body are used to contact the conveyor belt.

[0011] Optionally, a plurality of embedding grooves are provided on the outer circumferential surface of the roller body, one end of the air guide member is embedded in the embedding groove, and the other end of the air guide member protrudes from the outer circumferential surface; an air guide groove is provided on the side wall of the air guide member, and the air guide groove includes a first part located inside the embedding groove and a second part located outside the embedding groove, the first part and the groove wall of the embedding groove constitute part of the air flow channel, and the opening of the second part constitutes the air outlet.

[0012] Optionally, an air intake valve is fixed to the air intake port, and the air intake port is connected to the air supply pipe through the air intake valve.

[0013] The present disclosure provides a coal conveyor in another aspect. The coal conveyor includes a conveyor belt and a plurality of the above-mentioned conveyor rollers, wherein the conveyor belt is arranged on the plurality of the conveyor rollers.

[0014] Through the above technical scheme, when it is necessary to clean the conveying roller, the conveying device can be stopped, and then the air inlet is connected to the air supply pipe. The high-pressure gas provided by the air supply pipe is blown out from the air outlet and enters the exhaust groove, and the high-pressure gas acts on the groove wall of the exhaust groove and the conveyor belt facing the exhaust groove. In the process of high-pressure gas flowing out from the end of the exhaust groove, the colloid and coal powder attached to the groove wall of the exhaust groove and the conveyor belt are brought out, thereby achieving the purpose of cleaning the conveying roller and the conveyor belt, preventing the colloid and coal powder from accumulating and solidifying on the conveying roller and the conveyor belt, thereby avoiding the wear of the conveyor belt by the protrusions formed after solidification.

[0015] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0017] Figure 1 is a schematic structural diagram of a conveying roller provided by an exemplary embodiment of the present disclosure;

[0018] Figure 2 yes Figure 1A partial enlarged view of the middle A;

[0019] Figure 3 is a side view of a conveying roller provided by an exemplary embodiment of the present disclosure (cut at the air inlet);

[0020] Figure 4 It is a schematic diagram of the connection between a conveyor roller and a conveyor belt provided in an exemplary embodiment of the present disclosure.

[0021] Description of Reference Numerals

[0022] 10- conveyor roller; 20- conveyor belt;

[0023] 100-roller body; 110-embedded groove;

[0024] 200-air guide member; 210-air guide groove; 211-first part; 212-second part; 220-card slot portion;

[0025] 300-air flow channel; 301-air inlet; 302-air outlet; 310-main channel; 320-branch channel; 321-first branch channel; 322-second branch channel;

[0026] 400-exhaust slot;

[0027] 500-flexible contact strip; 510-protrusion;

[0028] 600-support bar;

[0029] 700-plug;

[0030] 800-Intake valve. DETAILED DESCRIPTION

[0031] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0032] In the description of the present disclosure, it is to be understood that the terms "inside" and "outside" refer to the inside and outside of the corresponding structural contour. In addition, the terms "first", "second", etc. are only used to distinguish one element from another element, and have no order or importance.

[0033] In the description of the present disclosure, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connect", "connected", and "installed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0034] The present disclosure provides a conveying roller in one aspect to solve the technical problem that colloids and dust are mixed and then form protrusions on the conveying roller, causing wear of the conveyor belt.

[0035] like Figures 1 to 4 As shown, the conveying roller 10 includes a roller body 100 and a plurality of air guides 200, the roller body 100 is used to support the conveyor belt 20, and the plurality of air guides 200 are distributed on the roller body 100 at intervals along the circumference of the roller body 100, the air guides 200 at least partially protrude from the outer circumferential surface of the roller body 100, and an exhaust groove 400 opening toward the conveyor belt 20 is formed between the side walls of adjacent air guides 200 and the axial surface of the roller body 100, the air guide 200 is provided with an air flow channel 300, the air inlet 301 of the air flow channel 300 faces the axial direction of the roller body 100 and is suitable for connecting to an air supply pipe, and the air outlet 302 of the air flow channel 300 is provided on the side wall of the air guide 200 and connected to the exhaust groove 400.

[0036] Through the above technical solution, when it is necessary to clean the conveying roller 10, the conveying device can be stopped, and then the air inlet 301 is connected to the air supply pipe. The high-pressure gas provided by the air supply pipe is blown out from the air outlet 302 and enters the exhaust groove 400, and the high-pressure gas acts on the groove wall of the exhaust groove 400 and the conveyor belt 20 facing the exhaust groove 400. In the process of the high-pressure gas flowing out from the end of the exhaust groove 400, the colloid and coal powder attached to the groove wall of the exhaust groove 400 and the conveyor belt 20 are brought out, thereby cleaning the conveying roller 10 and the conveyor belt 20, preventing the colloid and coal powder from accumulating and solidifying on the conveying roller 10 and the conveyor belt 20, thereby avoiding the wear of the conveyor belt 20 by the protrusions formed after solidification.

[0037] It should be noted that, since the air guides 200 are arranged at intervals, the gaps between the air guides 200 penetrate the two ends of the roller body 100, and therefore, the two ends of the exhaust groove 400 are connected to the outside, and the gas can flow out from the two ends of the exhaust groove 400. After the cleaning is completed, the connection between the air supply pipe and the air inlet 301 can be disconnected, and the conveying device can be restarted. The above-mentioned shutdown of the conveying device can complete the cleaning operation of the conveying roller 10 while the conveying device is shut down for regular inspection, so that there is no need to shut down the conveying roller 10 specifically for cleaning.

[0038] Optionally, the length direction of the air guide 200 is arranged along the axial direction of the roller body 100, that is, the length direction of the air guide 200 is parallel to the axial direction of the roller body 100. Of course, in other embodiments, the length direction of the air guide 200 may have an angle with the axial direction of the roller body 100, so that the length direction of the air guide 200 is inclined on the roller body 100.

[0039] like Figure 1 and Figure 2 As shown, in some optional embodiments, the air flow channel 300 includes a main channel 310 and multiple branch channels 320 connected to the main channel 310, the air inlet 301 is arranged in the main channel 310, and one end of each branch channel 320 away from the main channel 310 constitutes an air outlet 302.

[0040] By providing a plurality of branch channels 320 , each branch channel 320 constitutes an air outlet 302 , thereby forming a plurality of air outlets 302 on the air guide 200 . Each air outlet 302 blows air to a different area, thereby achieving a better cleaning effect on the surface of the conveying roller 10 .

[0041] Optionally, the main channel 310 is arranged in a direction parallel to the axis of the roller body 100, and the air inlet 301 can be arranged at the end of the main channel 310, that is, one end of the main channel 310 penetrates the exhaust member to form the air inlet 301. The plurality of air outlets 302 are arranged at intervals along the axis of the roller body 100, so that the blowing areas of the plurality of air outlets 302 can cover the entire area in the length direction of the roller body 100. In addition, the distance between any two adjacent air outlets 302 can be set to be equidistant, so that the blowing areas of the air outlets 302 are more uniform.

[0042] In order to facilitate the cleaning of the airflow channel 300. In some optional embodiments, one end of the main channel 310 away from the air inlet 301 passes through the exhaust member to form a cleaning port, and a plug 700 is detachably sealed and connected to the cleaning port, and the plug 700 is used to block the cleaning port. When the airflow channel 300 needs to be cleaned, the plug 700 can be removed to expose the cleaning port, and then a cleaning tool can be inserted into the main channel 310 to clean the main channel 310, and the dirt after cleaning can be discharged from the cleaning port.

[0043] In some optional embodiments, the branch channel 320 includes at least one first branch channel 321 and at least one second branch channel 322, and the air outlet 302 of the first branch channel 321 and the air outlet 302 of the second branch channel 322 are respectively arranged on the opposite side walls of the air guide 200 and connected to different exhaust grooves 400.

[0044] The air outlet 302 of the first branch channel 321 and the air outlet 302 of the second branch channel 322 are respectively arranged on the opposite side walls of the air guide 200, and the two air exhaust slots 400 formed on the opposite side walls of the air guide 200 can be blown simultaneously through the first branch channel 321 and the second branch channel 322, thereby improving the cleaning efficiency. At the same time, since the opposite side walls of each air guide 200 are respectively provided with the air outlet 302 of the first branch channel 321 and the air outlet 302 of the second branch channel 322, the opposite side walls of each air exhaust slot 400 have air outlets 302, thereby further improving the cleaning efficiency.

[0045] Optionally, there are multiple first branch channels 321 and multiple second branch channels 322, and the exhaust ports of the multiple first branch channels 321 are spaced apart along the length direction of the exhaust member, and the exhaust ports of the multiple second branch channels 322 are spaced apart along the length direction of the exhaust member to achieve a better blowing and cleaning effect.

[0046] In some optional embodiments, a flexible contact strip 500 is installed at one end of the air guide 200 away from the roller body 100 , and the flexible contact strip 500 is used to contact the conveyor belt 20 .

[0047] By setting the flexible contact strip 500 in contact with the conveyor belt 20, on the one hand, it is possible to avoid the hard friction between the conveyor roller 10 and the conveyor belt 20 causing accelerated wear of the conveyor belt 20. On the other hand, the flexible contact strip 500 can increase the friction between the conveyor roller 10 and the conveyor belt 20, reduce the slippage between the conveyor belt 20 and the conveyor roller 10, and avoid the wear of the conveyor belt 20 caused by slippage.

[0048] The flexible contact strip 500 here may be made of rubber, or may be made of a composite material of rubber and other materials.

[0049] The fixing methods of the flexible contact strip 500 and the air guide member 200 include but are not limited to adhesive fixing, clamping fixing and bolt connection fixing.

[0050] Since the flexible support strip 600 is prone to aging after long-term use, it needs to be replaced regularly. In order to conveniently replace the flexible support strip 600, in some optional embodiments, such as Figure 1 and Figure 2 As shown, one of the slot portion 220 and the protrusion 510 is provided at one end of the air guide 200 facing the contact strip, and the other of the slot portion 220 and the protrusion 510 is provided at one end of the contact strip facing the air guide 200, and the protrusion 510 is suitable for being snap-fitted and fixed in the slot portion 220. After the protrusion 510 is snap-fitted and fixed with the slot portion 220, the flexible support strip 600 and the air guide 200 can be relatively fixed, and at the same time, due to the snap-fitting and fixing, the flexible support strip 600 can be easily removed from the air guide 200 for replacement.

[0051] like Figure 1 and Figure 2 As shown, the slot portion 220 is disposed on the air guide 200 , and the protrusion 510 is disposed on the flexible support strip 600 and is integrally formed with the flexible support strip 600 .

[0052] Regarding the specific structure of the slot 220, in some optional embodiments, the width of the slot 220 is gradually reduced from the bottom of the slot 220 to the notch of the slot 220. In this way, the cross-sectional shape of the slot 220 is generally conical, and accordingly, the protrusion 510 has a head for matching the bottom of the slot 220 and a tail for matching the notch of the slot 220. The cross-sectional shape of the protrusion 510 is also generally conical, and the width of the protrusion 510 is gradually reduced from the head to the tail of the protrusion 510. In this way, the protrusion 510 is clamped in the slot 220 from the axial end face of the roller body 100, so that the clamping and fixing of the protrusion 510 and the slot 220 is achieved, and the protrusion 510 and the slot 220 can also be prevented from being separated in the radial direction of the roller body 100.

[0053] In some optional embodiments, a support bar 600 is provided between any two adjacent air guide members 200 , and the support bar 600 is installed on the outer peripheral surface of the roller body 100 , and the end of the support bar 600 away from the roller body 100 and the end of the contact bar away from the roller body 100 are used together to contact the conveyor belt 20 .

[0054] By providing the support bar 600 , it can contact the conveyor belt 20 together with the contact bar, thereby increasing the contact area and contact strength with the conveyor belt 20 , and ensuring the stability and efficiency of the conveying process.

[0055] The fixing methods of the air guide 200 and the roller body 100 include but are not limited to welding, bolting and clamping.

[0056] In order to facilitate assembly and disassembly of the air guide 200 and the roller body 100, in some optional embodiments, a plurality of embedding grooves 110 are provided on the outer circumference of the roller body 100, one end of the air guide 200 is embedded in the embedding groove 110, and the other end of the air guide 200 protrudes from the outer circumference.

[0057] The air guide 200 is fixed in the embedding groove 110 by means of an inlay connection, so that the air guide 200 and the roller body 100 can be quickly fixed and disassembled. At the same time, the groove wall of the embedding groove 110 can limit the air guide 200, so that the air guide 200 is less likely to fall off when the roller body 100 rotates.

[0058] It should be noted that the side wall of the air guide member 200 is in surface contact with the groove wall of the embedding groove 110 , so as to increase the contact area between the air guide member 200 and the embedding groove 110 and improve the stability of the air guide member 200 .

[0059] Alternatively, if Figure 2As shown, an air guide groove 210 is opened on the side wall of the air guide member 200, and the air guide groove 210 includes a first part 211 located inside the embedded groove 110 and a second part 212 located outside the embedded groove 110. The first part 211 and the groove wall of the embedded groove 110 form a partial air flow channel 300, and the opening of the second part 212 forms an air outlet 302.

[0060] By providing the air guide groove 210 on the side wall of the air guide member 200 and cooperating with the groove wall of the embedded groove 110 to form a part of the air flow channel 300, the amount of drilling on the air guide member 200 can be reduced, making the air flow channel 300 easier to process, and at the same time, the high-pressure gas can be blown out from the opening of the second part 212 of the air guide member 200. Since the first part 211 of the air guide groove 210 is located in the embedded groove 110, the junction of the first part 211 and the second part 212 is flush with the outer peripheral surface of the roller body 100, so that the gas blown out from the gas outlet 302 can be directly blown to the outer peripheral surface of the roller body 100, that is, the groove bottom of the exhaust groove 400, so that the outer peripheral surface of the roller body 100 can be better cleaned.

[0061] like Figure 3 As shown, in some optional embodiments, the air inlet 301 is fixed with an air inlet valve 800, and the air inlet 301 is connected to the air supply pipe through the air inlet valve 800. The air inlet valve 800 can adjust the pressure of the gas entering the air inlet 301 to achieve the effect of pressurizing the gas, and the air supply pipe can be quickly connected or removed from the air inlet valve 800, so that the air supply pipe can be quickly connected or removed from the air inlet 301.

[0062] like Figure 4 As shown, based on the above-mentioned conveying roller 10, the present disclosure also provides a coal conveyor, which includes a conveyor belt 20 and a plurality of the above-mentioned conveying rollers 10. The conveyor belt 20 is arranged on the plurality of conveying rollers 10. When the conveying rollers 10 rotate, the conveyor belt 20 is driven to move synchronously.

[0063] It should be noted that a motor is connected to the axial end of the conveying roller 10 , and the motor drives the conveying roller 10 to rotate.

[0064] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0065] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0066] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A conveying roller, characterized in that: include: A roller body, used to support the conveyor belt; A plurality of air guides are distributed on the roller body at intervals along the circumference of the roller body, the air guides at least partially protrude from the outer circumferential surface of the roller body, and exhaust grooves opening toward the conveyor belt are formed between the side walls of adjacent air guides and the axial surface of the roller body. The air guides are provided with air flow channels, the air inlets of the air flow channels are oriented toward the axial direction of the roller body and are suitable for connecting to an air supply pipe, and the air outlets of the air flow channels are provided on the side walls of the air guides and connected to the exhaust grooves.

2. The conveying roller according to claim 1, characterized in that The air flow channel includes a main channel and a plurality of branch channels connected to the main channel. The air inlet is arranged in the main channel, and one end of each branch channel away from the main channel constitutes the air outlet.

3. The conveying roller according to claim 2, characterized in that: The branch channels include at least one first branch channel and at least one second branch channel. The air outlets of the first branch channel and the second branch channel are respectively arranged on the side walls on opposite sides of the air guide and connected to different exhaust grooves.

4. The conveying roller according to claim 1, characterized in that: A flexible contact strip is installed at one end of the air guide away from the roller body, and the flexible contact strip is used to contact the conveyor belt.

5. The conveying roller according to claim 4, characterized in that: One of a slot and a protrusion is provided at one end of the air guide member facing the contact strip, and the other of the slot and the protrusion is provided at one end of the contact strip facing the air guide member, and the protrusion is suitable for being fixed in the slot.

6. The conveying roller according to claim 5, characterized in that: Along the direction from the groove bottom of the clamping groove to the groove opening of the clamping groove, the width of the clamping groove gradually decreases.

7. The conveying roller according to claim 4, characterized in that: A support bar is arranged between any two adjacent air guides, and the support bar is installed on the outer peripheral surface of the roller body. One end of the support bar away from the roller body and one end of the contact bar away from the roller body are used to contact the conveyor belt.

8. The conveying roller according to any one of claims 1 to 7, characterized in that: The outer circumferential surface of the roller body is provided with a plurality of embedding grooves, one end of the air guide is embedded in the embedding groove, and the other end of the air guide protrudes from the outer circumferential surface; An air guide groove is provided on the side wall of the air guide component, and the air guide groove includes a first part located inside the embedded groove and a second part located outside the embedded groove. The first part and the groove wall of the embedded groove constitute part of the air flow channel, and the opening of the second part constitutes the air outlet.

9. The conveying roller according to claim 1, characterized in that: An air intake valve is fixed to the air intake port, and the air intake port is connected to the air supply pipe through the air intake valve.

10. A coal conveyor, characterized in that: The utility model comprises a conveyor belt and a plurality of conveyor rollers according to any one of claims 1 to 9, wherein the conveyor belt is arranged on the plurality of conveyor rollers.

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