Fire coal impurity removal mechanism for thermal power plant

Abstract

The utility model provides a fire coal impurity removal mechanism for a thermal power plant, which belongs to the field of fire coal processing and comprises a support frame, a conveying component and a blowing component are mounted on the support frame, a processing shell is fixedly connected to the upper end face of the support frame, a vertical frame is connected to the upper end face of the processing shell in a filing manner, and a funnel is fixedly connected to the upper end face of the vertical frame; an impurity removal assembly; and the impurity removal assembly comprises two screens rotationally connected to the inner wall of the treatment shell, two sets of guide grooves are formed in the inner wall of the treatment shell, the two screens are slidably connected into the two sets of guide grooves correspondingly, every two guide grooves form a group, and two rotating rods are rotationally connected to the inner wall of the treatment shell. According to the device, large coal blocks and small coal blocks are washed and purified separately, the impurity removal effect is better, the surfaces of the washed coal blocks can be air-dried, more moisture on the surfaces of the coal blocks is avoided, a user can conveniently collect the coal blocks, then the user collects the coal blocks in a centralized mode and then air-dries the coal blocks, and the portability of the device is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to coal processing technical field especially relates to a coal impurity removal mechanism for thermal power plant. BACKGROUND

[0002] Before processing, the dust and gravel on the surface of coal need to be removed to reduce the ash and sulfur content of coal, facilitating the processing and use of coal.

[0003] The coal impurity removal mechanism for thermal power plant with the application number CN202223508475.0 includes a collection box, a screening box and a dust removal pipe. The surface of the collection box is fixedly connected with a support. The inner wall of the dust removal pipe is fixedly connected with a filter screen. The inner wall of the dust removal pipe is fixedly connected with an air extractor. The surface of the dust removal pipe is fixedly connected with a dust collection box. The surface of the support is provided with a screening mechanism. The surface of the dust removal pipe is provided with a dust collection mechanism. The utility model relates to coal processing technical field. The coal impurity removal mechanism for thermal power plant can realize the removal of solid impurities such as stone blocks in the coal in the screening box by starting the first motor to drive the rotating disc to rotate, driving the eccentric rotation of the driven disc, driving the rotation of the driven block, driving the back-and-forth sliding and rotation of the driven rod, driving the sliding and rotation of the screening box by the driven rod, thereby shaking off the solid impurities such as stone blocks in the coal in the screening box into the collection box, removing the solid impurities such as stone blocks in the coal, and improving the working efficiency of the coal impurity removal mechanism for thermal power plant. However, the screening box is used to screen the coal blocks, the cleaning effect of the dust and other impurities attached to the surface of the coal blocks is general, and efficient classification and screening cannot be realized. When processing coal blocks with uneven particle size distribution or high viscosity, the screening effect will be significantly reduced, which may lead to unstable product quality and affect the subsequent process flow. SUMMARY

[0004] In view of the deficiencies in the prior art, the utility model provides a coal impurity removal mechanism for thermal power plant.

[0005] The embodiment of the utility model provides a coal impurity removal mechanism for thermal power plant, which includes:

[0006] The support frame is provided with a conveying assembly and a blowing assembly. The upper end surface of the support frame is fixedly connected with a processing shell. The upper end surface of the processing shell is fixedly connected with a stand. The upper end surface of the stand is fixedly connected with a hopper.

[0007] The impurity removing assembly is characterized in that two screen meshes are rotationally connected to the inner wall of the treatment shell, the inner wall of the treatment shell is provided with two groups of guide grooves, the two screen meshes are slidingly connected in the two groups of guide grooves respectively, the two guide grooves are grouped, the inner wall of the treatment shell is rotationally connected with two rotating rods, the side walls of the two rotating rods are fixedly connected with elliptical plates respectively, the two elliptical plates are located below the two screen meshes respectively, the inner wall of the treatment shell is provided with a plurality of water pipes, a plurality of water spraying heads are mounted on the water pipes, a connecting pipe is mounted between the water pipes, the side wall of the treatment shell is fixedly provided with a servo motor, the rotating end of the servo motor is fixedly connected to one of the rotating rods, the side wall of the treatment shell is rotationally connected with two chain wheels, the two chain wheels are driven by a chain, and the two chain wheels are fixedly connected with the two rotating rods respectively.

[0008] Further, the conveying assembly comprises two transmission rollers rotationally connected to the support frame, the two transmission rollers are driven by a conveying belt, the conveying belt is a perforated conveying belt, a plurality of supporting rollers are rotationally connected to the support frame, and the plurality of supporting rollers are located between the two transmission rollers.

[0009] Further, the blowing assembly comprises a mounting frame fixedly connected to the upper end face of the support frame, and a plurality of blowing fans are mounted on the mounting frame and arranged opposite to the conveying belt.

[0010] Further, the support frame is fixedly connected with a baffle.

[0011] Further, the lower end face of the support frame is fixedly connected with a plurality of backing plates, and the lower end face of the backing plates is provided with anti-skid lines.

[0012] Further, the lower inner wall of the treatment shell is arranged in an inclined manner.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. The user pours the coal that needs to be removed into the hopper, the coal blocks fall onto the uppermost screen mesh, then the servo motor starts to work, the screen mesh vibrates up and down, water is supplied into the connecting pipe, the water is discharged through the water spraying heads, the coal blocks are washed, the small coal blocks fall onto the lower screen mesh for washing, the large and small coal blocks are washed separately, and the impurity removing effect is better.

[0015] 2. The washed coal blocks fall onto the conveying belt, the driving motor starts to work, the washed coal blocks are conveyed, the blowing fans start to work, the surface of the coal blocks is dried, the surface of the coal blocks is prevented from being too wet, then the user collects the coal blocks and dries them. Attached Figure Description

[0016] Fig. 1 This is a three-dimensional structural schematic diagram of a coal impurity removal mechanism for a thermal power plant as described in an embodiment of this utility model.

[0017] Fig. 2 This is a three-dimensional side view of a coal impurity removal mechanism for a thermal power plant as described in an embodiment of this utility model.

[0018] Fig. 3 This is a three-dimensional sectional view of a coal impurity removal mechanism for a thermal power plant as described in an embodiment of this utility model.

[0019] In the above attached figures: 1 support frame, 2 processing shell, 3 funnel, 4 screen, 5 guide groove, 6 elliptical plate, 7 water supply pipe, 8 water spray head, 9 connecting pipe, 10 servo motor, 11 sprocket, 12 chain, 13 transmission roller, 14 conveyor belt, 15 idler roller, 16 mounting frame, 17 blower fan, 18 baffle. Detailed Implementation

[0020] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0021] like Figs. 1-3 As shown in the figure, this utility model embodiment proposes a coal impurity removal mechanism for thermal power plants, comprising:

[0022] Support frame 1, on which a conveying component and a blowing component are installed, a processing shell 2 is fixedly connected to the upper end face of the support frame 1, a vertical frame is fixedly connected to the upper end face of the processing shell 2, and a funnel 3 is fixedly connected to the upper end face of the vertical frame.

[0023] Impurity removal assembly; the impurity removal assembly has two screens 4 rotatably connected to the inner wall of the processing shell 2. The inner wall of the processing shell 2 has two sets of guide grooves 5. The two screens 4 are slidably connected in the two sets of guide grooves 5 respectively. The guide grooves 5 are in pairs. The inner wall of the processing shell 2 is rotatably connected to two rotating rods. The side walls of the two rotating rods are fixedly connected to elliptical plates 6. The two elliptical plates 6 are located below the two screens 4 respectively. The screen holes of the upper screen 4 are larger than those of the lower screen 4. Multiple water supply pipes 7 are installed on the inner wall of the processing shell 2. Multiple water spray heads 8 are installed on the multiple water supply pipes 7. Connecting pipes 9 are installed between the multiple water supply pipes 7. The connecting pipes 9 are provided with water supply ends.

[0024] A servo motor 10 is fixedly installed on the side wall of the processing shell 2. The rotating end of the servo motor 10 is fixedly connected to one of the rotating rods. Two sprockets 11 are rotatably connected to the side wall of the processing shell 2. The two sprockets 11 are driven by a chain 12. The two sprockets 11 are fixedly connected to the two rotating rods respectively. A drain port is opened on the processing shell 2. The lower inner wall of the processing shell 2 is inclined to facilitate the discharge of sewage and impurities from the processing shell.

[0025] The conveying assembly includes two drive rollers 13 rotatably connected to the support frame 1. The two drive rollers 13 are driven by a conveyor belt 14, which is a perforated conveyor belt. Multiple idler rollers 15 are rotatably connected to the support frame 1 and are located between the two drive rollers 13. A drive motor is fixedly installed on the side wall of the support frame 1. The rotating end of the drive motor is fixedly connected to one of the drive rollers 13. A baffle 18 is fixedly connected to the support frame 1 to block one side of the support frame 1 and prevent coal blocks from falling from one end of the conveyor belt 14. The blowing assembly includes a mounting frame 16 fixedly connected to the upper surface of the support frame 1. Multiple blowing fans 17 are installed on the mounting frame 16 and are all positioned facing the conveyor belt 14.

[0026] It is worth noting that the entire device controls the servo motor 10, drive motor and blower 17 through the main control system. Since the servo motor 10, drive motor and blower 17 matched by the main control system are common equipment and belong to existing mature technology, their electrical connection relationship and specific circuit structure will not be described in detail here.

[0027] The detailed working process of this utility model is as follows:

[0028] First, the user places the device in the designated processing area. Then, the user pours the coal that needs impurities removed into the funnel 3. The coal chunks fall onto the screen 4 at the top of the processing shell 2. Simultaneously, the servo motor 10 starts working. With the cooperation of the sprocket 11 and chain 12, the two elliptical plates 6 begin to rotate. The elliptical plates 6 continuously strike the screen 4, causing one end of the screen 4 to vibrate up and down. At the same time, water is introduced into the connecting pipe 9, and the water is discharged through the spray head 8, thus washing the coal chunks. Smaller coal chunks pass through the upper screen 4. The coal pieces fall through the screen holes onto the lower screen 4 for rinsing, separating large and small coal pieces for better impurity removal. The rinsed coal pieces fall onto the conveyor belt 14, and the drive motor starts working, causing the transmission roller 13 to rotate, thus conveying the cleaned coal pieces. At the same time, the fan 17 starts working to air dry the surface of the coal pieces, preventing excessive moisture and making it easier for users to collect the coal pieces. The users then collect the coal pieces and dry them further, improving the portability of the device.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A coal impurity removal mechanism for a thermal power plant, characterized in that, The utility model relates to a kind of coal impurity removal mechanisms for thermal power plant, including: Support frame (1), conveying assembly and air blowing assembly are installed on the support frame (1), the upper end surface of the support frame (1) is fixedly connected with processing shell (2), the upper end surface of the processing shell (2) is connected with stand, the upper end surface of the stand is fixedly connected with funnel (3); Impurity removal assembly;Two screen meshes (4) rotatably connected in the inner wall of processing shell (2), two groups of guide grooves (5) are opened in the inner wall of processing shell (2), two screen meshes (4) are slidably connected in two groups of guide grooves (5) respectively, the guide groove (5) is in group, two rotatable rods are rotatably connected in the inner wall of processing shell (2), the side wall of two rotatable rods is fixedly connected with elliptical plate (6), two elliptical plates (6) are located below two screen meshes (4) respectively, a plurality of water pipes (7) are installed in the inner wall of processing shell (2), a plurality of water pipes (7) are all installed with a plurality of water jet heads (8), a plurality of water pipes (7) are installed with connecting pipe (9), servo motor (10) is fixedly installed on the side wall of processing shell (2), the rotating end of servo motor (10) is fixedly connected on one of rotatable rods, two sprockets (11) are rotatably connected on the side wall of processing shell (2), two sprockets (11) are driven by chain (12) between two, two rotatable rods are fixedly connected with two sprockets (11) respectively, the upper end surface of the processing shell (2) is opened with sewage outlet.

2. The coal impurity removal mechanism for thermal power plant according to claim 1, wherein: The conveying assembly comprises two transmission rollers (13) rotatably connected to the support frame (1), and the two transmission rollers (13) are driven by a conveying belt (14) therebetween, wherein the conveying belt (14) is a perforated conveying belt, a plurality of supporting rollers (15) are rotatably connected to the support frame (1) and located between the two transmission rollers (13), and a driving motor is fixedly installed on the side wall of the support frame (1) and has a rotating end fixedly connected to one of the transmission rollers (13).

3. The coal impurity removal mechanism for thermal power plant according to claim 1, wherein: The air blowing assembly comprises a mounting frame (16) fixedly connected to the upper end surface of the support frame (1), and a plurality of air blowing fans (17) are installed on the mounting frame (16) and each faces the conveying belt (14).

4. The coal impurity removal mechanism for thermal power plant according to claim 1, wherein: The support frame (1) is fixedly connected with a baffle (18).

5. The coal impurity removal mechanism for thermal power plant according to claim 1, wherein: The lower end surface of the support frame (1) is fixedly connected with a plurality of base plates, and the lower end surface of each base plate is provided with anti-skid lines.

6. The coal impurity removal mechanism for thermal power plant according to claim 1, wherein: The lower inner wall of the processing shell (2) is inclined.

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