Coal discharging and cleaning structure for power plant

Abstract

The utility model discloses a coal discharging and cleaning structure for a power plant, which belongs to the technical field of auxiliary equipment for coal conveying of the power plant and comprises a conveying rack, a conveying belt is arranged on one side of the conveying rack, and a plurality of coal cleaning pieces are arranged on the upper side of the conveying rack. The coal cleaning part is used for cleaning belt surface accumulated water on the surface of the conveying belt, and coal guiding assemblies are arranged at the positions, opposite to the coal cleaning part, of the two sides of the conveying rack and used for conducting guiding treatment on coal or accumulated water cleaned by the coal cleaning part. Through cooperative arrangement of the conveying rack, the conveying belt, the coal cleaning part and the coal guiding assembly, integrated operation of coal conveying and surface cleaning is achieved, the coal cleaning part cleans accumulated water on the surface of the conveying belt in a targeted mode, and the belt transmission efficiency reduction and the slipping risk caused by the accumulated water are effectively avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to a coal unloading cleaning structure for power plant belongs to the auxiliary equipment technical field of power plant coal conveying. BACKGROUND

[0002] In the production and operation process of power plant, the stability and efficiency of the conveying link of coal as the main fuel directly affect the power generation efficiency and operation cost of power plant, at present, the continuous transportation of power plant coal conveying is realized by adopting the belt conveyor, however, in the actual unloading and conveying process, affected by the factors such as the fluctuation of coal moisture content, unloading impact and belt running vibration, the surface of the conveying belt is easy to remain the belt surface water and scattered coal, which brings many problems to the conveying system.

[0003] In the prior art, the cleaning of the surface of the conveying belt is mostly realized by simple scraper or manual cleaning, wherein, the traditional scraper structure is mostly fixed straight plate design, and the adhesion degree with the surface of the belt is poor, it is difficult to effectively remove the accumulated water and attached small coal, and the scraper is easy to cause the cleaning effect to decrease greatly due to abrasion after long-term use, the manual cleaning not only has high labor intensity and low efficiency, and has high safety risk in the process of belt running, at the same time, it cannot realize the synchronous operation with the conveying process, and is easy to cause the accumulation and secondary pollution of coal, if a large amount of accumulated water appears, it will cause the belt to slip during the operation of the belt machine, and a large amount of accumulated water enters the system, which is easy to cause the coal blocking condition. UTILITY MODEL CONTENTS

[0004] In order to solve the above technical problems, the utility model provides a coal unloading cleaning structure for power plant.

[0005] The technical scheme adopted by the utility model to solve its technical problems is:

[0006] A coal unloading cleaning structure for power plant, comprising a conveyor frame, one side of the conveyor frame is provided with a conveying belt, the upper side of the conveyor frame is provided with a plurality of coal cleaning pieces, the coal cleaning pieces are used for cleaning the belt surface water on the surface of the conveying belt, the two sides of the conveyor frame and the positions opposite to the coal cleaning pieces are provided with coal material guiding assemblies, the coal material guiding assemblies are used for guiding and processing the coal or accumulated water cleaned by the coal cleaning pieces.

[0007] The conveyor frame provides a mounting base for the whole structure, the conveying belt realizes continuous conveying of coal on one side of the conveyor frame, when the coal is conveyed on the conveying belt, the plurality of coal cleaning pieces on the upper side of the conveyor frame directly act on the surface of the conveying belt, and the accumulated water and the scattered coal on the surface of the coal are cleaned down through contact or scraping, and meanwhile, the coal material guiding assembly arranged opposite to the coal cleaning piece on the two sides of the conveyor frame guides the coal and the accumulated water cleaned down by the cleaning piece to flow to a specified area.

[0008] The accumulated water and the scattered coal are simultaneously cleaned during the coal conveying process, the accumulated water is prevented from affecting the coal conveying efficiency or causing the belt to slip, the cleaned coal and the accumulated water are prevented from being scattered at will through the guiding assembly, the conveying environment is kept clean, and the coal waste is reduced.

[0009] Preferably, the coal cleaning piece comprises a mounting frame, a coal plough and a baffle, the mounting frame is arranged on the upper side of the conveyor frame, the upper side of the mounting frame is provided with the coal plough, and the plough head end of the coal plough is provided with the baffle.

[0010] Through the above technical scheme, the mounting frame is fixed on the upper side of the conveyor frame to provide stable mounting support for the coal plough, the plough head end of the coal plough is in contact with the surface of the conveying belt, the plough head end scrapes the accumulated water and the scattered coal on the surface of the belt to the two sides or a specified direction during the running of the belt, and the baffle arranged at the plough head end blocks the coal and the accumulated water during the scraping process to prevent them from splashing or separating from the cleaning range.

[0011] Through the cooperation of the coal plough and the baffle, the cleaning pertinence and completeness of the accumulated water and the scattered coal on the surface of the belt are improved, the baffle effectively reduces secondary pollution during the cleaning process, ensures that the cleaned coal and the accumulated water can be effectively collected, and the stable support of the mounting frame guarantees the structural stability of the cleaning piece during work, prolonging the service life of the cleaning piece.

[0012] Preferably, the coal material guiding assembly comprises a coal material pipe, a shielding baffle and a material inlet, the coal material pipe is arranged on the two sides of the conveyor frame, one side of the coal material pipe is provided with the material inlet, the material inlet extends to the lower side of the conveying belt, one side of the baffle is arranged on one side of the material inlet, and the shielding baffle is reversely connected to one side of the material inlet.

[0013] By the technical scheme, the coal material guide pipe is fixed on both sides of the conveyor frame, the inlet on one side thereof extends to the lower side of the conveying belt, and is opposite to one side of the baffle of the coal cleaning member, so that the coal material and the accumulated water cleaned by the cleaning member can accurately enter the inlet, the shielding baffle reversibly connected on one side of the inlet can be adjusted in angle according to actual requirements, and plays an auxiliary blocking and guiding role when the coal material and the accumulated water enter the inlet, preventing the coal material and the accumulated water from leaking from the edge of the inlet, and then the coal material and the accumulated water are conveyed to the designated collection area through the coal material guide pipe.

[0014] The accurate alignment of the inlet with the cleaning member and the arrangement of the shielding baffle greatly improve the collection efficiency of the cleaned coal material and accumulated water, avoid waste and environmental pollution caused by material scattering, the guiding role of the coal material guide pipe realizes directional conveying of the coal material and the accumulated water, which is convenient for subsequent centralized treatment, and the reversing structure of the shielding baffle enhances the adaptability of the assembly, which can be adjusted in use according to different cleaning amounts.

[0015] Preferably, a plurality of protective fences are arranged on both sides of the conveyor frame.

[0016] By the technical scheme, the plurality of protective fences arranged on both sides of the conveyor frame form a barrier through fixed installation and surround the outside of the key area of the conveying belt and the cleaning structure, thereby physically isolating the operator and the surrounding objects, preventing the operator from accidentally contacting the running belt or the cleaning component, and also preventing external objects from falling into the conveying area to affect the operation of the equipment.

[0017] The safety of the equipment operation is significantly improved, the risk of safety accidents caused by accidental contact of the operator with the equipment is reduced, and the entry of external debris into the conveying system is prevented, thereby reducing the equipment failure rate and ensuring the continuous and stable operation of the coal conveying process.

[0018] Preferably, a control box is electrically connected to one side of the conveyor frame through a wire.

[0019] By the technical scheme, the control box is electrically connected to the related electrical components on one side of the conveyor frame through a wire, and can be integrated with a control button, a sensor interface, a control circuit and the like, so that the operator can control the running speed of the conveying belt, the working state of the coal cleaning member and the like through the control box, thereby realizing automatic or semi-automatic control of the operation of the entire cleaning structure.

[0020] The centralized control of the equipment operation is realized, the operation convenience is improved, and the workload of on-site manual operation is reduced, the equipment operation parameters can be accurately adjusted through the control box, the cleaning effect and the conveying efficiency are optimized, and the monitoring and troubleshooting of the equipment operation state are facilitated.

[0021] Preferably, one side of the conveying frame is provided with a bottom support, one side of the bottom support is provided with a mounting seat, one side of the mounting seat is provided with an anti-deviation carrier roller, and one side of the anti-deviation carrier roller is in abutment with one side of the conveying belt.

[0022] Through the above technical scheme, the bottom support is fixed on one side of the conveying frame, the mounting seat provides a mounting basis for the anti-deviation carrier roller, the anti-deviation carrier roller is mounted on the bottom support through the mounting seat, and one side of the anti-deviation carrier roller is in abutment with one side of the conveying belt. During the operation of the conveying belt, the anti-deviation carrier roller supports and guides the belt, limits the transverse deviation of the belt, and ensures that the belt always operates on the preset track.

[0023] Through the abutment and cooperation of the anti-deviation carrier roller and the belt, the transverse shaking and deviation of the conveying belt during operation are effectively reduced, the friction loss of the belt and other components is reduced, the service life of the belt is prolonged, the stability of the belt operation is ensured, and the stability and reliability of coal conveying are improved.

[0024] Compared with the prior art, the utility model has the advantages that:

[0025] The utility model discloses a conveying frame, conveying belt, coal cleaning piece and coal material guide assembly are cooperated and set up, realize the integration of coal conveying and surface cleaning operation, and the coal cleaning piece is cleaned to the water on the surface of the conveying belt, which effectively avoids the belt transmission efficiency and the risk of slipping caused by the water.

[0026] The utility model discloses a conveying frame, conveying belt, coal cleaning piece and coal material guide assembly are cooperated and set up, realize the integration of coal conveying and surface cleaning operation, and the coal cleaning piece is cleaned to the water on the surface of the conveying belt, which effectively avoids the belt transmission efficiency and the risk of slipping caused by the water. ACCURATE DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be simply introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to the structure shown in these drawings without creating labor.

[0028] Figure 1 It is the front surface shaft side structure schematic view of the utility model;

[0029] Figure 2 It is the front surface shaft side structure schematic view of the utility model; Figure 1 It is the structure schematic view of A in the middle;

[0030] Figure 3 It is the side surface shaft side structure schematic view of the utility model;

[0031] Figure 4 It is the bottom surface shaft side structure schematic view of the utility model.

[0032] In the drawing: 1, conveying frame; 2, conveying belt; 3, mounting frame; 4, plough coal device; 5, baffle; 6, coal material guide pipe; 7, shielding plate; 8, inlet; 9, protective fence; 10, control box; 11, bottom support; 12, mounting seat; 13, anti-deviation carrier roller. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model and not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0034] Please refer to Figures 1-4 The utility model provides a technical scheme:

[0035] A coal unloading cleaning structure for power plant, including conveying frame, conveying frame 1 adopts section steel welding and is made, its length is set according to the demand of power plant coal conveying path, and the whole is in horizontal support state.

[0036] Conveying belt 2 is arranged on one side of conveying frame 1 through driving roller and driven roller, and the conveying surface of conveying belt 2 is arranged along the horizontal direction, and the running direction is determined by the unloading process of power plant.

[0037] The upper side of conveying frame 1 is spaced apart along the length direction of conveying belt 2 and is provided with 2-4 groups of coal cleaning pieces, and the spacing of each group of coal cleaning pieces is 1.5-3m, to ensure that the surface of conveying belt 2 is fully covered and cleaned.

[0038] Coal material guide assemblies are fixedly installed on both sides of conveying frame 1 and correspond to each group of coal cleaning pieces, and the coal and water accumulated by the coal cleaning pieces fall directly into the corresponding coal material guide assembly.

[0039] The coal cleaning device comprises a mounting frame 3 which is welded by steel plates into a frame structure and is fixed on the upper side beam of the conveyor frame 1 by expansion bolts, and the height of the mounting frame 3 can be adjusted according to the thickness of the conveying belt 2.

[0040] The plow coal device 4 is made of wear-resistant alloy material, the plow head thereof is in an inclined acute angle structure, the inclined angle is 30°-45°, the plow coal device 4 is detachably mounted on the upper side of the mounting frame 3 by bolts, and the plow head end is in close contact with the surface of the conveying belt 2 and the contact pressure is adjustable.

[0041] The baffle 5 is made of steel plates and is fixed on the edge of the plow head end of the plow coal device 4 by welding or bolts.

[0042] The coal guide assembly comprises a coal guide pipe 6 which is made of seamless steel pipe and is fixed on the vertical columns on both sides of the conveyor frame 1 by clamps, the inlet 8 is arranged on one side of the coal guide pipe 6, one side edge of the baffle 5 is aligned with the edge of the inlet 8, and the shielding plate 7 is connected to one side of the inlet 8 by a hinge.

[0043] The guard rail 9 is welded by round steel or square steel, has a height of 1.2-1.5m, is continuously arranged along the length direction of the conveyor frame 1, the distance between adjacent guard rails 9 is 30-50cm, the bottom of the guard rail 9 is fixedly connected with the side beam of the conveyor frame 1 by bolts, and a horizontal handrail is arranged on the top, at the corresponding positions of the coal cleaning device and the coal guide assembly, the guard rail 9 is provided with an openable maintenance door, and the equipment maintenance is facilitated.

[0044] The control box 10 is of a waterproof and dustproof box structure, is mounted on one end side of the conveyor frame 1 by a support, operation buttons and indicator lights are arranged on the surface of the box, a PLC controller, a relay and a power module are integrated in the control box 10, copper core wires are electrically connected with the driving motor of the conveying belt 2 and the adjusting mechanism of the plow coal device 4 respectively, the wires are protected by being arranged in a corrugated pipe, the control box 10 can preset corresponding parameters of the conveying speed and the cleaning frequency, and linkage control is realized.

[0045] The bottom support 11 is welded by profile steel on one side of the bottom of the conveyor frame 1, and a group of the bottom supports 11 are arranged every 5-8m along the length direction of the conveying belt 2, the mounting seat 12 is of a U-shaped steel plate structure and is fixed on the upper side of the bottom support 11 by bolts, a bearing seat is arranged in the mounting seat 12, the anti-deviation idler roller 13 is a rubber-coated roller, has a diameter of 8-15cm, is mounted in the bearing seat of the mounting seat 12 by a rotating shaft, the axis of the anti-deviation idler roller 13 is parallel to the side edge of the conveying belt 2, one side of the roller surface of the anti-deviation idler roller 13 abuts against the side edge of the conveying belt 2, and the abutting pressure is adjusted by the adjusting bolts on the mounting seat 12.

[0046] Through the above specific embodiment, efficient cleaning of the surface of the conveying belt in the coal discharging process of the power plant can be realized, directional collection of the cleaned material is ensured, and safe and stable operation of the equipment is guaranteed.

[0047] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A coal unloading cleaning structure for a power plant, characterized by, The utility model provides a coal conveying frame, one side of the conveying frame is provided with a conveying belt, the upper side of the conveying frame is provided with a plurality of coal cleaning parts for cleaning the water on the surface of the conveying belt, coal guide assemblies are arranged on both sides of the conveying frame opposite to the coal cleaning parts for guiding the coal or water cleaned by the coal cleaning parts; The coal cleaning part comprises a mounting frame, a coal plough and a baffle, the mounting frame is arranged on the upper side of the conveying frame, the upper side of the mounting frame is provided with the coal plough, the plough head end of the coal plough is provided with the baffle, the plough head end of the coal plough is an inclined acute angle structure, the inclination angle is 30-45 degrees and the plough head end is made of wear-resistant alloy material, the plough head end is in contact with the surface of the conveying belt and the contact pressure is adjustable. The coal guide assembly comprises a coal guide pipe, a shielding plate and a feeding port, the coal guide pipe is arranged on both sides of the conveying frame, one side of the coal guide pipe is provided with the feeding port, the feeding port extends to the lower side of the conveying belt, one side of the baffle is arranged on one side of the feeding port, and the shielding plate is reversely connected to one side of the feeding port. One side of the conveying frame is provided with a bottom support, one side of the bottom support is provided with a mounting seat, one side of the mounting seat is provided with an anti-deviation carrier roller, the anti-deviation carrier roller is a rubber-coated roller with a diameter of 8-15 cm, and one side of the anti-deviation carrier roller is in contact with one side of the conveying belt.

2. The coal unloading cleaning structure for a power plant according to claim 1, wherein The conveying frame is provided with a plurality of guardrails on both sides.

3. The coal unloading cleaning structure for a power plant according to claim 1, wherein One side of the conveying frame is electrically connected with a control box through a wire.

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