A coal conveying device

Abstract

The utility model discloses a coal conveying device, it includes: drive motor, the right side output of drive motor is equipped with speed reducer, the right side output shaft of speed reducer is fixedly connected with extrusion screw rod through the shaft coupling, the outside slide nested installation of extrusion screw rod has the feeding cylinder, the top left and right equidistance of feeding cylinder is equipped with a plurality of feeding port, the right end outside of feeding cylinder is nested fixedly with the heat conduction cylinder, the outside left part of heat conduction cylinder is nested fixedly with the electric heating jacket, the top center of electric heating jacket is equipped with the exhaust slot, cancel the traditional belt conveying mode, adopt long distance multistage feeding extrusion conveying operation, the whole conveying path is relatively closed, and the conveying rate is relatively stable, can effectively avoid the problem of coal block rolling back and producing the smoke dust, in addition can heat drying to the humid coal block in the conveying path, keep the dryness of coal final recovery, avoid secondary drying treatment, improve the whole conveying efficiency.

Description

Technical Field

[0001] This utility model relates to the field of coal conveying technology, and in particular to a coal conveying device. Background Technology

[0002] Coal is the most important solid fuel and a type of combustible organic rock. Coal conveying equipment mainly refers to belt conveyors used in the coal mining, production, transfer and processing process. Coal conveying equipment needs to have the characteristics of large transport capacity, complex working environment, strong load-bearing capacity and long transport distance. Coal conveying equipment can not only be used in the coal production and processing process, but also in the production and processing of other minerals. However, the conveyor belt of the belt conveyor is prone to wear due to continuous sliding contact with the coal. Relatively smooth coal blocks are prone to rolling back on the belt, generating dust and affecting the conveying efficiency. In addition, the raw coal mined in some areas is relatively moist with high moisture content, which is easy to mix with coal ash and contaminate the belt during the conveying process. Cleaning is troublesome, and subsequent drying is also required, which is a complicated process and affects the overall conveying efficiency. Utility Model Content

[0003] The purpose of this utility model is to provide a coal conveying device that eliminates the traditional belt conveyor method and adopts a long-distance, multi-segment feeding extrusion conveying operation. The overall conveying path is relatively closed, the conveying speed is relatively stable, and it can effectively avoid the problems of coal rolling back and generating smoke and dust. In addition, it can heat and dry the wet coal in the conveying path to maintain the dryness of the coal in the final recovery, avoid secondary drying treatment, and improve the overall conveying efficiency.

[0004] To achieve the above objectives, a coal conveying device is provided, comprising: a drive motor; a reducer is fitted to the right output end of the drive motor; an extrusion screw is fixedly connected to the right output shaft of the reducer via a coupling; a feeding cylinder is slidably nested on the outer side of the extrusion screw; a plurality of feeding ports are equidistantly spaced on the top of the feeding cylinder; a heat-conducting cylinder is nested and fixed on the outer side of the right end of the feeding cylinder; a pad is fitted and fixed on the right side of the heat-conducting cylinder; a bushing is rotatably fitted to the right end of the extrusion screw through the pad; the left side of the bushing is fitted and fixed to the pad; an electric heating sleeve is nested and fixed on the left side of the outer side of the heat-conducting cylinder; an exhaust slot is provided at the center of the top of the electric heating sleeve; the exhaust slot extends downwards into the interior of the heat-conducting cylinder. The outer right side of the heat-conducting cylinder has symmetrically arranged discharge ports, eliminating the traditional belt conveyor method. It adopts an extrusion screw in conjunction with an extended feeding cylinder and several vertical feeding ports for long-distance, multi-stage extrusion conveying. The extrusion screw provides linear conveying force while also applying oblique pressure to the coal blocks, assisting in crushing larger coal blocks. The overall conveying path is relatively closed, and the conveying speed is relatively stable, effectively preventing coal blocks from rolling back and generating dust. In addition, a heat-conducting cylinder and electric heating jacket are nested on the outer side of the end of the feeding cylinder to heat and dry the damp coal blocks in the conveying path. At the same time, the evaporated moisture is naturally discharged from the top exhaust vent, maintaining the dryness of the coal at the final recovery, avoiding secondary drying treatment, and improving the overall conveying efficiency.

[0005] According to the aforementioned coal conveying device, the drive motor is a waterproof motor, the reducer adopts a planetary reduction system, and the extrusion screw is made of 38CrMoAlA nitrided steel. This ensures the safe and stable operation of the screw extrusion process and avoids the influence of a humid environment.

[0006] According to the aforementioned coal conveying device, a feeding enclosure is nested and fixed at the upper edge of the feeding port. The feeding enclosure has a rectangular design, and its upper inner edge is beveled to prevent spillage or leakage during the feeding process.

[0007] According to the aforementioned coal conveying device, several frames are nested and fixed at equal intervals on the outer side of the feeding cylinder, and the frames, pads, and the base of the reducer are kept horizontal and aligned. This ensures a stable installation along the entire conveying path of the feeding cylinder.

[0008] According to the aforementioned coal conveying device, an isolation baffle is fixedly mounted at the center of the right side of the reducer. The right side of the isolation baffle is fitted and fixed to the feeding cylinder. The output shaft of the reducer passes through the isolation baffle and rotates with it. This prevents coal lumps from contaminating the reducer.

[0009] According to the aforementioned coal conveying device, a wire mesh is horizontally stacked on the upper inner side of the exhaust trough, and the outer side of the wire mesh is fixed to the heating sleeve. This provides dust protection while maintaining evaporative exhaust.

[0010] According to the aforementioned coal conveying device, a U-shaped discharge chute is fixedly connected to the opposite side of the discharge port, and a sliding cover is fitted to the top layer of each U-shaped discharge chute to slide left and right. This helps to regulate the conveying direction of the material discharged from the discharge port.

[0011] According to the aforementioned coal conveying device, a wear-resistant ball pad is fitted and fixed to the inner side of the right end of the heat-conducting cylinder, and the wear-resistant ball pad is located on the right side of the discharge port. Its arc surface is used to laterally guide the coal block at the end of the conveying path for discharge.

[0012] The above-mentioned solution has the following beneficial effects: In this invention, the traditional belt conveyor method is eliminated. Instead, an extrusion screw, an extended feeding cylinder, and several vertical feeding ports are used for long-distance, multi-stage extrusion conveying. The extrusion screw provides linear conveying force while also applying oblique pressure to the coal blocks, assisting in crushing larger coal blocks. The overall conveying path is relatively closed, and the conveying speed is relatively stable, effectively preventing the coal blocks from rolling back and generating dust. In addition, a heat-conducting cylinder and an electric heating jacket are nested on the outside of the end of the feeding cylinder to heat and dry the damp coal blocks in the conveying path. At the same time, the evaporated moisture is naturally discharged from the top exhaust port, maintaining the dryness of the coal at the final recovery, avoiding secondary drying treatment, and improving the overall conveying efficiency.

[0013] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments; Figure 1 This is an overall schematic diagram of a coal conveying device according to the present invention; Figure 2 This is a schematic diagram of the connection structure of the extrusion screw in a coal conveying device according to the present invention; Figure 3 This is a schematic diagram of the connection structure of the electric heating jacket in a coal conveying device according to the present invention; Figure 4 This is a schematic diagram of the connection structure of a U-shaped discharge trough in a coal conveying device according to the present invention.

[0015] Legend: 1. Drive motor; 2. Reducer; 3. Extrusion screw; 4. Feeding cylinder; 5. Feeding enclosure; 6. Frame; 7. Isolation baffle; 8. Heat conduction cylinder; 9. Pad; 10. Bushing; 11. Discharge port; 12. Heating mantle; 13. Wire mesh; 14. U-shaped discharge chute; 15. Sliding cover; 16. Wear-resistant ball pad. Detailed Implementation

[0016] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0017] Reference Figure 1 and Figure 2 This utility model provides a coal conveying device, including: a drive motor 1, a reducer 2 installed at the right output end of the drive motor 1, an extrusion screw 3 fixedly connected to the right output shaft of the reducer 2 via a coupling, the drive motor 1 being a waterproof motor, the reducer 2 employing a planetary reduction system, the extrusion screw 3 being made of 38CrMoAlA nitrided steel, a feeding cylinder 4 being slidably nested on the outer side of the extrusion screw 3, an isolation baffle 7 fixedly mounted at the center of the right side of the reducer 2, the right side of the isolation baffle 7 being fitted and fixedly engaged with the feeding cylinder 4, and the output shaft of the reducer 2 correspondingly passing through the isolation baffle 7 and rotating in coordination with it. The top of the feeding cylinder 4 has several feeding ports equidistantly spaced on the left and right. Each feeding port has a feeding enclosure 5 nested and fixed at its upper edge. The feeding enclosure 5 has a rectangular design and its upper inner edge is beveled. The traditional belt conveyor method is eliminated. Instead, an extrusion screw 3 is used in conjunction with the extended feeding cylinder 4 and several vertical feeding ports to perform long-distance, multi-stage extrusion conveying. The extrusion screw 3 provides linear conveying force while also applying oblique pressure to the coal blocks, assisting in crushing larger coal blocks. The overall conveying path is relatively closed, and the conveying speed is relatively stable, which can effectively avoid the problems of coal blocks rolling back and generating dust.

[0018] Reference Figure 3As shown, a heat-conducting cylinder 8 is nested and fixed on the outer side of the right end of the feeding cylinder 4. A pad 9 is fitted and fixed on the right side of the heat-conducting cylinder 8. Several brackets 6 are nested and fixed at equal intervals on the left and right sides of the outer side of the feeding cylinder 4. The brackets 6, pads 9, and the base of the reducer 2 are kept horizontal and flush. The right end of the extrusion screw 3 passes through the pad 9 and is rotatably fitted with a bushing 10 on its outer side. The left side of the bushing 10 is fitted and fixed with the pad 9. An electric heating sleeve 12 is nested and fixed on the left side of the outer side of the heat-conducting cylinder 8. An exhaust slot is opened at the center of the top of the electric heating sleeve 12. The exhaust slot extends downward into the interior of the heat-conducting cylinder 8. A wire mesh 13 is horizontally stacked on the upper middle part of the inner side of the exhaust slot. The outer side of the wire mesh 13 is fixed with the electric heating sleeve 12. The damp coal blocks in the conveying path are heated and dried. At the same time, the evaporated water is naturally discharged from the top exhaust slot, maintaining the dryness of the coal after final recovery, avoiding secondary drying treatment, and improving the overall conveying efficiency.

[0019] Reference Figure 4 As shown, the heat-conducting cylinder 8 has symmetrically arranged discharge ports 11 on the right side of the outer side. On the opposite side of the discharge port 11, a U-shaped discharge trough 14 is connected and fixed. The top layer of the U-shaped discharge trough 14 is slidably fitted with a sliding cover 15. A wear-resistant ball pad 16 is embedded and fixed on the inner side of the right end of the heat-conducting cylinder 8. The wear-resistant ball pad 16 is located on the right side of the discharge port 11, with output from both sides to improve the discharge rate. At the same time, it restricts the direction and range of the discharge to ensure stable discharge.

[0020] Working Principle: In this utility model, the traditional belt conveyor method is eliminated. Instead, an extrusion screw 3 is used in conjunction with an extended feeding cylinder 4 and several vertical feeding ports for long-distance, multi-stage extrusion conveying. The extrusion screw 3 provides linear conveying force while also applying oblique pressure to the coal blocks, assisting in crushing larger coal blocks. The overall conveying path is relatively closed, and the conveying speed is relatively stable, effectively preventing the coal blocks from rolling back and generating dust. In addition, a heat-conducting cylinder 8 and an electric heating jacket 12 are nested on the outer side of the end of the feeding cylinder 4 to heat and dry the damp coal blocks in the conveying path. At the same time, the evaporated moisture is naturally discharged from the top exhaust port, maintaining the dryness of the coal after final recovery, avoiding secondary drying treatment, and improving the overall conveying efficiency.

[0021] In the description of this utility model, it should be understood that the terms "coaxial," "bottom," "one end," "top," "middle," "other end," "upper," "side," "top," "inner," "front," "center," and "both ends," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. At the same time, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "fixed installation," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two elements or the interaction relationship between two elements. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0022] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A coal conveying device, characterized in that, include: A drive motor (1) is provided with a reducer (2) installed on the right output end of the drive motor (1). The right output shaft of the reducer (2) is fixedly connected to an extrusion screw (3) via a coupling. A feeding cylinder (4) is slidably nested on the outside of the extrusion screw (3). Several feeding ports are equidistantly opened on the top of the feeding cylinder (4). A heat-conducting cylinder (8) is nested and fixed on the outer side of the right end of the feeding cylinder (4). A pad (9) is fitted and fixed on the right side of the heat-conducting cylinder (8). The right end of the extrusion screw (3) passes through the pad (9) and is rotatably fitted with a bushing (10) on its outer side. The left side of the bushing (10) is fitted and fixed with the pad (9). An electric heating sleeve (12) is nested and fixed on the left side of the outer side of the heat-conducting cylinder (8). An exhaust groove is opened at the top center of the electric heating sleeve (12). The exhaust groove extends downward into the interior of the heat-conducting cylinder (8). A discharge port (11) is symmetrically opened on the right side of the outer side of the heat-conducting cylinder (8).

2. A coal conveying device according to claim 1, characterized in that, The drive motor (1) is a waterproof motor, the reducer (2) adopts a planetary reduction system, and the extrusion screw (3) is made of 38CrMoAlA nitrided steel.

3. A coal conveying device according to claim 1, characterized in that, Each of the upper edges of the feeding port is nested and fixed with a feeding enclosure (5). The feeding enclosure (5) has a rectangular appearance and its upper inner edge is beveled.

4. A coal conveying device according to claim 1, characterized in that, Several brackets (6) are nested and fixed at equal intervals on the outer side of the feeding cylinder (4). The brackets (6), pads (9) and the base of the reducer (2) are kept horizontal and flush.

5. A coal conveying device according to claim 1, characterized in that, An isolation baffle (7) is fixedly mounted at the center of the right side of the reducer (2). The right side of the isolation baffle (7) is fitted and fixed with the feeding cylinder (4). The output shaft of the reducer (2) passes through the isolation baffle (7) and rotates with it.

6. A coal conveying device according to claim 1, characterized in that, The upper inner side of the exhaust port is provided with a horizontally stacked wire mesh (13), and the outer side of the wire mesh (13) is fixed to the heating sleeve (12).

7. A coal conveying device according to claim 1, characterized in that, The opposite side of the discharge port (11) is connected to a U-shaped discharge trough (14), and the top layer of the U-shaped discharge trough (14) is fitted with a sliding cover (15) that slides left and right.

8. A coal conveying device according to claim 1, characterized in that, The wear-resistant ball pad (16) is fitted and fixed on the inner side of the right end of the heat-conducting cylinder (8), and the wear-resistant ball pad (16) is located on the right side of the discharge port (11).

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