Raw material conveying device for thermal power generation

Abstract

The invention relates to the technical field of thermal power generation, in particular to a raw material conveying device for thermal power generation. The two sides of the top end of the lower shell are fixed to the tops of the supporting frames respectively, a bottom roller support is arranged in the middle of the bottom face of an inner cavity of the lower shell in the longitudinal direction, holes corresponding to the tops of bottom carrier rollers are formed in the two side walls of the lower shell respectively, and a plurality of upper roller brackets are arranged at the top of the lower shell. The bottom ends of the two sides of the upper shell are fixed to the top ends of the two sides of the lower shell, a connecting port is formed in the middle of the top face of the upper shell, and multiple threaded sleeves are arranged on the two sides of the top of the upper shell respectively. The top of the coal scattering prevention baffle is rotationally sleeved with a second threaded rod matched with the threaded sleeve in a threaded sleeving mode. The connecting port is connected to the air inlet end of the exhaust fan through the ventilation pipeline. The air inlet end of the gas dust removal equipment is connected with the air outlet end of the exhaust fan; a fixing plate hinged to the top end of a center shaft of the bottom carrier roller is supported on the hole; the flying dust generated by the conveying device is efficiently treated, and the scattering phenomenon is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of thermal power generation, in particular to a raw material transmission device for thermal power generation. Background Art

[0002] A thermal power plant is a plant that uses combustibles as fuel to produce electricity. A modern thermal power plant is a large and complex plant that produces electricity and heat energy and is mainly composed of five systems: fuel system, combustion system, steam-water system, electrical system and control system. At present, the main raw material used in domestic thermal power plants is coal. Therefore, coal transmission mechanisms are essential in the facilities of power plants.

[0003] In the prior art, since belt conveyors have the advantages of being able to transport coal over long distances continuously and with high transport efficiency, most coal transport mechanisms used in thermal power plants are belt conveyors. However, when belt conveyors are transporting coal, dust and coal slag are easily generated. At present, the means of dealing with dust is generally to use spraying and water sprinkling, but the effect of spraying and water sprinkling is limited and has a great impact on the environment at the work site. In addition, coal slag spillage requires manual cleaning, which not only consumes a lot of manpower, but also has low cleaning efficiency. Summary of the invention

[0004] The object of the present invention is to provide a raw material transmission device for thermal power generation, which is used to solve the problem that dust and spillage generated by the raw material transmission device for thermal power generation in the prior art are difficult to efficiently handle.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a raw material transmission device for thermal power generation, comprising a conveyor belt and upper and lower rollers for supporting the upper and lower belts of the conveyor belt respectively, and a plurality of support frames are connected to the conveyor head and the conveyor tail in the longitudinal direction; the two sides of the top of the lower shell are respectively fixed to the tops of the two sides of the support frame, and the middle part of the bottom surface of the inner cavity of the lower shell is longitudinally provided with a bottom roller support for rotatably supporting the bottom end of the central axis of the bottom roller, and the two side walls of the lower shell are respectively provided with holes corresponding to the top of the bottom roller, and the top of the lower shell is provided with a plurality of support rollers for rotatably supporting the upper The upper roller bracket of the roller; the bottom ends of both sides of the upper shell are respectively fixed to the top ends of both sides of the lower shell, a connection port is provided in the middle of the top surface of the upper shell, and a plurality of threaded sleeves are provided on both sides of the top of the upper shell in the longitudinal direction; the top of the anti-coal spillage baffle is rotatably sleeved with a screw rod 2 that matches the threaded sleeve; one side of the exhaust fan conveying device as a whole; the ventilation pipeline is used to connect the connection port to the air inlet end of the exhaust fan; the air inlet end of the gas dust removal equipment is connected to the air outlet end of the exhaust fan; a fixing plate is hinged on the top of the central axis of the bottom roller, and the fixing plate is fixedly supported on the hole.

[0006] Preferably, the support frame includes support slats which are arranged in parallel and extend longitudinally respectively, legs supported on the bottom surfaces of the support slats, and cross beams whose two ends are respectively vertically fixed to the inner sides of the legs, the lower shell includes a bottom arc-shaped shell and bottom slats fixed on both sides of the top end of the bottom arc-shaped shell and supported on the support slats, and the upper shell includes an upper arc-shaped shell and upper slats fixed on the bottom ends of both sides of the upper arc-shaped shell and supported on the bottom slats.

[0007] Preferably, the upper roller bracket includes vertical plates arranged in pairs whose bottom ends are respectively fixed to the top of the inner side wall of the bottom arc-shaped shell, horizontal strips whose two ends are respectively vertically fixed to the middle of the inner side wall of the vertical plates, and plates fixed to both sides of the middle of the top surface of the horizontal strips, and the front end of the top of the vertical plate and the front and rear sides of the middle of the top of the plate are respectively provided with a groove, and the two end surfaces of the central axis of the upper roller are respectively fixed with an ear plate, and the ear plate is hinged with an ear seat, and the outer end surface of the ear seat is vertically fixed with a screw that matches the slot, and the outer end thread of the screw is sleeved with a clamping nut.

[0008] Preferably, the bottom roller support includes a triangular beam fixed longitudinally to the middle of the bottom surface of the inner cavity of the bottom arc-shaped shell, a plurality of outer rings fixed to the two side walls of the triangular beam, and bearings sleeved in the outer rings, and the bottom end of the center axis of the bottom roller is sleeved in the bearing.

[0009] Preferably, an ear plate 2 is fixed to the top of the central axis of the bottom roller, an ear seat 2 hinged to the ear plate 2 is fixed to the middle of the inner wall of the fixed plate, a plurality of threaded holes are provided on the two side walls of the bottom arc-shaped shell at the periphery of the hole, through holes corresponding to the threaded holes are provided at the four corners of the fixed plate, and the bolts inserted in the through holes are threadedly sleeved in the threaded holes.

[0010] Preferably, the anti-coal-scattering baffle further comprises a strip groove member and a rubber plate whose top end is fixedly mounted in the strip groove member, and the bottom end of the second screw rod is rotatably mounted on the top surface of the strip groove member.

[0011] Preferably, a plug hole is radially provided at the top of the second screw.

[0012] Preferably, the ventilation duct includes a main pipe longitudinally arranged above the upper shell, a branch pipe head connected to the bottom of the main pipe and docked with the top of the connecting port, and a connecting pipe connected to one side of the main pipe and with the outer end docked with the air inlet end of the exhaust fan.

[0013] Preferably, the front and rear end surfaces of the upper arc-shaped shell and the bottom arc-shaped shell are respectively covered with a rubber layer.

[0014] Preferably, the gas dust removal equipment includes at least one of a gravity sedimentation structure, a centrifugal separation structure, a filtering structure, a liquid washing structure, an electrostatic adsorption structure and a sonic dust removal structure.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The present invention relates to a raw material transmission device for thermal power generation, which prevents coal from being spilled on a conveyor belt by setting a coal spillage prevention baffle; the conveyor belt is sealed by an upper shell and a lower shell, and an exhaust fan is used to exhaust the dust-containing air in the closed cavity to a gas dust removal device for treatment, so as to efficiently treat the dust generated during the transportation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of the support frame of the present invention; Figure 3 It is a schematic diagram of the three-dimensional structure of the lower shell of the present invention; Figure 4 It is a schematic diagram of the three-dimensional structure of the upper shell of the present invention; Figure 5 It is a schematic diagram of the three-dimensional structure of the upper roller of the present invention; Figure 6 It is a three-dimensional structural schematic diagram of the bottom roller of the present invention; Figure 7 It is a schematic diagram of the three-dimensional structure of the anti-coal spillage baffle of the present invention; Figure 8 It is a schematic diagram of the three-dimensional structure of the ventilation pipeline of the present invention.

[0017] In the figure: 1- conveyor belt; 2-support frame; 2.1-support slats; 2.2-support legs; 2.3-crossbeam; 3-lower shell; 3.1-bottom arc shell; 3.1.1-hole; 3.1.2-threaded hole; 3.2-bottom plate strip; 3.3-upper roller bracket; 3.3.1-vertical plate; 3.3.2-horizontal plate; 3.3.3-plate; 3.3.4-card slot; 3.4-bottom roller support; 3.4.1-triangular beam; 3.4.2-outer ring; 3.4.3-bearing; 4-upper shell; 4.1-upper arc shell; 4.2-upper strip; 4.3-connection port; 4.4-threaded sleeve; 5-upper roller; 5.1-ear plate one; 5.2-ear seat one; 5.3-screw one; 5.4-pressure nut; 6-bottom roller; 6.1-ear plate 2; 6.2-ear seat 2; 6.3-fixed plate; 6.3.1-perforation; 7-anti-coal-spill baffle; 7.1-strip groove; 7.2-rubber sheet; 7.3-screw rod 2; 7.3.1-socket; 8-Exhaust fan; 9-ventilation pipe; 9.1-main pipe; 9.2-connecting pipe; 9.3-branch head; 10-Gas dust removal equipment. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] See also Figure 1-8 The present invention provides a technical solution, a raw material transmission device for thermal power generation, comprising a conveyor belt 1 and upper rollers 5 and bottom rollers 6 for respectively supporting the upper and lower belts of the conveyor belt 1, and a plurality of support frames 2 are longitudinally connected between the conveyor head and the conveyor tail; wherein the support frame 2 comprises support slats 2.1 arranged in parallel and extending longitudinally respectively, legs 2.2 supported on the bottom surfaces of the support slats 2.1, and cross beams 2.3 with both ends respectively vertically fixed to the inner sides of the legs 2.2.

[0020] The lower shell 3 includes a bottom arc-shaped shell 3.1 and bottom strips 3.2 fixed on both sides of the top of the bottom arc-shaped shell 3.1 and supported on the support strips 2.1. A bottom roller support 3.4 for rotatably supporting the bottom end of the central axis of the bottom roller 6 is longitudinally arranged in the middle of the bottom surface of the inner cavity of the bottom arc-shaped shell 3.1. Holes 3.1.1 corresponding to the top of the bottom roller 6 are respectively arranged on the two side walls of the bottom arc-shaped shell 3.1. A plurality of upper roller brackets 3.3 for rotatably supporting the upper roller 5 are transversely arranged on the top of the bottom arc-shaped shell 3.1. Among them, the upper roller bracket 3.3 includes vertical plates 3.3.1 arranged in pairs, whose bottom ends are respectively fixed to the top of the inner wall of the bottom arc-shaped shell 3.1, horizontal strips 3.3.2 at both ends are respectively vertically fixed to the middle of the inner wall of the vertical plates 3.3.1, and plates 3.3.3 fixed to both sides of the middle of the top surface of the horizontal strips 3.3.2, and the front end of the top of the vertical plate 3.3.1 and the front and rear sides of the middle of the top of the plate 3.3.3 are respectively provided with a groove 3.3.4, and the two end surfaces of the central axis of the upper roller 5 are respectively fixed with an ear plate 5.1, the ear plate 5.1 is hinged with an ear seat 5.2, the outer end surface of the ear seat 5.2 is vertically fixed with a screw rod 5.3 that is clamped and matched with the groove 3.3.4, and the outer end thread of the screw rod 5.3 is sleeved with a clamping nut 5.4. That is, when installing the upper roller 5, the two ends of the central axis of the middle upper roller 5 are respectively clamped in the clamping groove 3.3.4 on the rear side of the middle part of the top of the plate 3.3.3, the top ends of the central axis of the upper rollers 5 on both sides are clamped in the clamping groove 3.3.4 at the front end of the top of the vertical plate 3.3.1, and the bottom ends of the central axis are respectively clamped in the clamping groove 3.3.4 on the rear side of the middle part of the top of the plate 3.3.3; when the two ends of the central axis of the upper roller 5 are clamped with the clamping groove 3.3.4, specifically, the inner end of the screw rod 5.3 is clamped in the corresponding clamping groove 3.3.4, and then the clamping nut 5.4 is installed and tightened, so that the clamping nut 5.4 is pressed against the outer wall of the top of the plate 3.3.3 or the outer wall of the top of the vertical plate 3.3.1, so as to complete the installation of the upper roller 5.

[0021] The bottom roller support 3.4 includes a triangular beam 3.4.1 fixed longitudinally to the middle of the bottom surface of the inner cavity of the bottom arc-shaped shell 3.1, multiple outer rings 3.4.2 fixed to the two side walls of the triangular beam 3.4.1, and a bearing 3.4.3 sleeved in the outer ring 3.4.2. The bottom end of the central axis of the bottom roller 6 is sleeved in the bearing 3.4.3. The top end of the central axis of the bottom roller 6 is hinged with a fixing plate 6.3, and the fixing plate 6.3 is fixedly supported on the hole 3.1.1. Among them, the top of the central axis of the bottom roller 6 is fixed with an ear plate 2 6.1, the middle of the inner wall of the fixed plate 6.3 is fixed with an ear seat 2 6.2 hinged with the ear plate 2 6.1, and the two side walls of the bottom arc-shaped shell 3.1 are provided with multiple threaded holes 3.1.2 at the position outside the hole 3.1.1, and the four corners of the fixed plate 6.3 are provided with perforations 6.3.1 corresponding to the threaded holes 3.1.2, and the bolts set in the perforations 6.3.1 are threadedly sleeved in the threaded holes 3.1.2. When installing the bottom roller 6, first pass the bottom roller 6 through the hole 3.1.1, so that the bottom end of the central axis of the bottom roller 6 is set in the bearing 3.4.3, and the fixed plate 6.3 is supported on the outer edge of the hole 3.1.1, and the perforations 6.3.1 correspond to the threaded holes 3.1.2 one by one, install the bolts and tighten them to complete the installation of the bottom roller 6.

[0022] A connection port 4.3 is provided in the middle of the top surface of the upper shell 4, and a plurality of threaded sleeves 4.4 are provided on both sides of the top of the upper shell 4 in the longitudinal direction; wherein the upper shell 4 comprises an upper arc-shaped shell 4.1 and upper strips 4.2 fixed at the bottom ends of both sides of the upper arc-shaped shell 4.1 and supported on the bottom strips 3.2. The connection port 4.3 is provided in the middle of the top surface of the upper arc-shaped shell 4.1, and the bottom ends of the threaded sleeves 4.4 are fixedly sleeved on both sides of the top of the upper arc-shaped shell 4.1.

[0023] The exhaust fan 8 is connected to the conveying device as a whole; the ventilation pipeline 9 is used to connect the connection port 4.3 to the air inlet end of the exhaust fan 8; wherein the ventilation pipeline 9 includes a main pipe 9.1 arranged on the upper part of the upper shell 4 in the longitudinal direction, a branch pipe head 9.3 connected to the bottom of the main pipe 9.1 and connected to the top of the connection port 4.3, and a connecting pipe 9.2 connected to one side of the main pipe 9.1 and the outer end of which is connected to the air inlet end of the exhaust fan 8. The air inlet end of the gas dust removal device 10 is connected to the air outlet end of the exhaust fan 8.

[0024] Through the above arrangement, the upper roller 5, the bottom roller 6 and the conveyor belt 1 are all enclosed in the closed cavity formed by the upper shell 4 and the lower shell 3. The closed cavity is connected to the exhaust fan 8 through the connection port 4.3, the branch pipe head 9.3, the main pipe 9.1 and the connecting pipe 9.2. The exhaust fan 8 can extract the dust generated during the coal transportation process from the top of the closed cavity and send it to the gas dust removal device 10. The gas dust removal device 10 purifies the dust-containing air to achieve the effect of preventing the dust from spreading.

[0025] The top of the anti-coal-scattering baffle 7 is rotatably sleeved with a screw rod 7.3 that matches the threaded sleeve 4.4; the anti-coal-scattering baffle 7 also includes a strip groove member 7.1 and a rubber plate 7.2 fixedly mounted in the strip groove member 7.1 at the top, and the bottom end of the screw rod 7.3 is rotatably sleeved on the top surface of the strip groove member 7.1.

[0026] In summary, by rotating the top of the screw rod 7.3, the overall up and down movement of the anti-coal scattering baffle 7 can be adjusted, so that the bottom of the rubber plate 7.2 is pressed on both sides of the belt surface of the conveyor belt 1, thereby preventing coal from scattering from the conveyor belt 1.

[0027] In order to facilitate the rotation of the screw rod 7.3, a plug hole 7.3.1 is provided radially at the top of the screw rod 7.3, that is, a thin rod-shaped tool is inserted into the plug hole 7.3.1 to facilitate the rotation of the screw rod 7.3. In order to improve the air tightness of the cavity structure composed of the upper shell 4 and the lower bottom shell 3, the front and rear end surfaces of the upper arc shell 4.1 and the bottom arc shell 3.1 are respectively covered with rubber layers.

[0028] The gas dust removal equipment 10 includes at least one of a gravity sedimentation structure, a centrifugal separation structure, a filtering structure, a liquid washing structure, an electrostatic adsorption structure and an acoustic dust removal structure to achieve efficient dust removal and purification of dust-laden air.

[0029] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A raw material transmission device for thermal power generation, comprising a conveyor belt (1) and an upper roller (5) and a bottom roller (6) for supporting the upper and lower belts of the conveyor belt (1) respectively, characterized in that: Also includes: A support frame (2), wherein a plurality of the support frames (2) are connected longitudinally between the conveyor head and the conveyor tail; A lower shell (3), wherein both sides of the top of the lower shell (3) are respectively fixed to the tops of both sides of the support frame (2), a bottom roller support (3.4) for rotatably supporting the bottom end of the central axis of the bottom roller (6) is longitudinally provided in the middle of the bottom surface of the inner cavity of the lower shell (3), and holes (3.1.1) corresponding to the top of the bottom roller (6) are respectively provided on the two side walls of the lower shell (3), and a plurality of upper roller brackets (3.3) for rotatably supporting the upper roller (5) are transversely provided on the top of the lower shell (3); An upper shell (4), the bottom ends of both sides of the upper shell (4) being respectively fixed to the top ends of both sides of the lower shell (3), a connection port (4.3) being provided in the middle of the top surface of the upper shell (4), and a plurality of threaded sleeves (4.4) being respectively provided along the longitudinal direction on both sides of the top of the upper shell (4); A coal scattering prevention baffle (7), wherein the top of the coal scattering prevention baffle (7) is rotatably sleeved with a second screw (7.3) that is threadedly sleeved and matches the threaded sleeve (4.4); An exhaust fan (8), the exhaust fan (8) being an integral side of the conveying device; A ventilation pipeline (9), the ventilation pipeline (9) being used to connect the connection port (4.3) to the air inlet end of the exhaust fan (8); A gas dust removal device (10), wherein an air inlet end of the gas dust removal device (10) is connected to an air outlet end of the exhaust fan (8); A fixing plate (6.3) is hingedly connected to the top end of the central axis of the bottom roller (6), and the fixing plate (6.3) is fixedly supported on the hole (3.1.1).

2. A raw material transmission device for thermal power generation according to claim 1, characterized in that: The support frame (2) comprises support slats (2.1) arranged in parallel and extending in the longitudinal direction, legs (2.2) supported on the bottom surface of the support slats (2.1), and crossbeams (2.3) with two ends respectively fixed vertically to the inner sides of the legs (2.2); the lower shell (3) comprises a bottom arc-shaped shell (3.1) and bottom slats (3.2) fixed to both sides of the top of the bottom arc-shaped shell (3.1) and supported on the support slats (2.1); the upper shell (4) comprises an upper arc-shaped shell (4.1) and upper slats (4.2) fixed to both sides of the bottom of the upper arc-shaped shell (4.1) and supported on the bottom slats (3.2).

3. A raw material transmission device for thermal power generation according to claim 2, characterized in that: The upper roller bracket (3.3) comprises a pair of vertical plates (3.3.1) whose bottom ends are respectively fixed to the top of the inner wall of the bottom arc-shaped shell (3.1), horizontal plates (3.3.2) whose two ends are respectively vertically fixed to the middle of the inner wall of the vertical plates (3.3.1), and plates (3.3.3) fixed to both sides of the middle of the top surface of the horizontal plates (3.3.2), and the top front end of the vertical plates (3.3.1) and the front and rear sides of the middle of the top of the plates (3.3.3) are respectively provided with a clamping groove (3.3.4), and the two end surfaces of the central axis of the upper roller (5) are respectively fixed with an ear plate (5.1), the ear plate (5.1) is hinged with an ear seat (5.2), and the outer end surface of the ear seat (5.2) is vertically fixed with a screw rod (5.3) that is clamped and matched with the clamping groove (3.3.4), and the outer end thread of the screw rod (5.3) is sleeved with a clamping nut (5.4).

4. A raw material transmission device for thermal power generation according to claim 2, characterized in that: The bottom roller support (3.4) comprises a triangular beam (3.4.1) fixed longitudinally to the middle of the bottom surface of the inner cavity of the bottom arc-shaped shell (3.1), a plurality of outer rings (3.4.2) fixed to the two side walls of the triangular beam (3.4.1), and a bearing (3.4.3) sleeved in the outer ring (3.4.2), and the bottom end of the central axis of the bottom roller (6) is sleeved in the bearing (3.4.3).

5. A raw material transmission device for thermal power generation according to claim 2, characterized in that: A second ear plate (6.1) is fixed to the top of the central axis of the bottom roller (6), a second ear seat (6.2) hinged to the second ear plate (6.1) is fixed to the middle of the inner wall of the fixing plate (6.3), a plurality of threaded holes (3.1.2) are provided on the two side walls of the bottom arc-shaped shell (3.1) at positions outside the hole (3.1.1), and perforations (3.1.2) corresponding to the threaded holes (3.1.2) are provided at the four corners of the fixing plate (6.3). 6.3.1), the bolt threadedly inserted into the through hole (6.3.1) is inserted into the threaded hole (3.1.2).

6. A raw material transmission device for thermal power generation according to claim 1, characterized in that: The anti-coal spillage baffle (7) further comprises a strip groove member (7.1) and a rubber plate (7.2) whose top end is fixedly mounted in the strip groove member (7.1), and the bottom end of the second screw rod (7.3) is rotatably sleeved on the top surface of the strip groove member (7.1).

7. A raw material transmission device for thermal power generation according to claim 6, characterized in that: The top of the second screw rod (7.3) is provided with a plug hole (7.3.1) in the radial direction.

8. A raw material transmission device for thermal power generation according to claim 1, characterized in that: The ventilation pipeline (9) comprises a main pipe (9.1) arranged longitudinally above the upper shell (4), a branch pipe head (9.3) connected to the bottom of the main pipe (9.1) and butted against the top of the connection port (4.3), and a connecting pipe (9.2) connected to one side of the main pipe (9.1) and with its outer end butted against the air inlet end of the exhaust fan (8).

9. A raw material transmission device for thermal power generation according to claim 2, characterized in that: The front and rear end surfaces of the upper arc-shaped shell (4.1) and the bottom arc-shaped shell (3.1) are respectively covered with a rubber layer.

10. A raw material transmission device for thermal power generation according to claim 1, characterized in that: The gas dust removal equipment (10) comprises at least one of a gravity sedimentation structure, a centrifugal separation structure, a filtering structure, a liquid washing structure, an electrostatic adsorption structure and a sonic dust removal structure.

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