Feeding conveying device with screening structure for boiler

Abstract

The utility model relates to a boiler feed conveying device with a screening structure. A feeding port is formed in one side of the top of the shell, a discharging port is formed in the bottom of the shell, and a movable door is arranged on one side of the lower portion of the shell. The material screening device is characterized in that a material screening disc is arranged on the side, close to the feeding port, in the shell, an inclined plate is fixed to one side in the material screening disc, a first material screening plate is arranged on the outer side of the inclined plate, and a material crushing assembly is arranged above the first material screening plate; a rectangular box is correspondingly arranged on the lower portion of the screening disc, a second screening plate is obliquely arranged in the rectangular box, a vibration motor is installed on one side of the bottom of the second screening plate, through holes are formed in the bottom of the rectangular box and the lowest end of the second screening plate, and a collecting box is correspondingly arranged below the through holes. The large solid fuel can be crushed and preliminarily screened, and the situation that the combustion efficiency is reduced due to the fact that the large solid fuel enters the boiler is avoided; and larger solid fuel is collected into the collecting box, so that the size of the solid fuel entering the boiler is small, and the combustion efficiency of the boiler is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of conveying devices, in particular to a boiler feed conveying device with a screening structure. Background Art

[0002] A boiler is an energy conversion device. The energy input to the boiler includes chemical energy and electrical energy in the fuel. The boiler outputs steam, high-temperature water or organic heat carrier with a certain amount of thermal energy. The original meaning of pot refers to a water container heated on fire, and furnace refers to a place where fuel is burned. The boiler consists of two major parts: the pot and the furnace. The hot water or steam generated in the boiler can directly provide the required thermal energy for industrial production and people's lives, or can be converted into mechanical energy through a steam power device, or the mechanical energy can be converted into electrical energy through a generator. A boiler that provides hot water is called a hot water boiler, which is mainly used for life and also has a small number of applications in industrial production. A boiler that generates steam is called a steam boiler, often referred to as a boiler, and is mostly used in thermal power plants, ships, locomotives and industrial and mining enterprises.

[0003] In the prior art, solid fuel is fed into the boiler for combustion through a feed conveying device. Solid fuel refers to solid fuel such as coal. During the combustion process, larger pieces of solid fuel have a relatively small surface area and a slow combustion speed, resulting in incomplete combustion, thereby reducing the combustion efficiency. Therefore, we propose a feed conveying device for a boiler with a screening structure. Summary of the invention

[0004] The utility model aims to solve the problems existing in the background technology and proposes a boiler feed conveying device with a screening structure.

[0005] The technical solution of the utility model: A feed conveying device for a boiler with a screening structure, comprising a shell, a feeding port is arranged on one side of the top of the shell, a discharging port is arranged on the bottom, and a movable door is arranged on one side of the lower part of the shell, characterized in that: a screening material plate is arranged on one side of the shell near the feeding port, an inclined plate is fixed on one side of the inside of the screening material plate, a first screening material plate is arranged on the outer side of the inclined plate, and a crushing assembly for crushing solid fuel is arranged above the first screening material plate;

[0006] A rectangular box is correspondingly provided at the lower part of the screening plate, a second screening plate is obliquely arranged in the rectangular box, a vibration motor is installed on one side of the bottom of the second screening plate, and the bottom of the rectangular box is connected with the discharge port; a through hole is provided at the bottom of the rectangular box and the lowest end of the second screening plate, and a collecting box is correspondingly provided below the through hole.

[0007] The crushing assembly is specifically as follows: a crushing plate is arranged above the first screening plate, a movable plate is arranged in the shell through a mounting groove and is moved by the movable assembly, a first fixing rod is fixed at both ends of the movable plate, a second fixing rod is fixed at both sides of the top of the crushing plate, a first connecting rod is hinged between the top of the first fixing rod and the top of the second fixing rod, a second connecting rod is hinged between the bottom of the first fixing rod and the bottom of the second fixing rod, a fixing block is fixedly installed on both sides of the screening plate, and a third connecting rod is hinged between the middle of the second connecting rod and the fixing block. A reinforcing rod is fixed on both sides of the left end of the crushing plate surface, and the other end of the reinforcing rod is fixed to the upper end of the second fixing rod.

[0008] The moving component is specifically as follows: an installation groove is fixed in the shell, a slider is slidably installed in the installation groove, the bottom of the moving plate is fixedly connected to the slider, a screw is rotatably installed in the installation groove, the slider and the screw are threadedly connected, and a rotating motor is provided on one side of the installation groove for driving the screw to rotate.

[0009] A movable box is slidably mounted in the collecting box, and the movable box is fixedly connected to the inner side of the movable door. The movable door can be pulled to pull the movable box out.

[0010] The beneficial effects of the utility model are as follows: it is able to crush larger solid fuels in the screening plate, and preliminarily screen the solid fuels through the first screening plate, thereby preventing the larger solid fuels from entering the boiler and causing a decrease in combustion efficiency; at the same time, by further screening the solid fuels, the screened solid fuels enter the boiler through the discharge port, and the larger solid fuels are collected into the collection box, ensuring that the size of the solid fuels entering the boiler is smaller, thereby improving the combustion efficiency of the boiler. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is the external schematic diagram of the utility model;

[0012] Figure 2 The internal structure of the housing of the utility model is shown in FIG. Figure 1 ;

[0013] Figure 3 The internal structure of the housing of the utility model is shown in FIG. Figure 2 ;

[0014] Figure 4 It is a front view cross-sectional structural schematic diagram of the utility model;

[0015] Figure 5 yes Figure 2 A partial enlarged view of point A in the middle.

[0016] In the figure: 1. Shell; 2. Feed inlet; 3. Discharge outlet; 4. Movable door; 5. Screen plate; 6. Inclined plate; 7. First screen plate; 8. Rectangular box; 81. Through hole; 9. Second screen plate; 10. Fixed block; 11. Collecting box; 111. Moving box; 12. Moving plate; 13. First fixed rod; 14. First connecting rod; 15. Second fixed rod; 16. Crushing plate; 17. Reinforcement rod; 18. Second connecting rod; 19. Third connecting rod; 20. Vibration motor; 21. Mounting groove; 22. Slider; 23. Screw; 24. Rotating motor. DETAILED DESCRIPTION

[0017] The technical solution of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all of the embodiments.

[0018] Example: See Figure 1-5 , a feed conveying device for a boiler with a screening structure, comprising a shell 1, a feeding port 2 is provided on one side of the top of the shell 1, a discharging port 3 is provided on the bottom, and a movable door 4 is provided on one side of the lower part of the shell 1, characterized in that: a screening plate 5 is provided on one side of the shell 1 near the feeding port 2, an inclined plate 6 is fixed on one side of the inside of the screening plate 5, a first screening plate 7 is provided on the outer side of the inclined plate 6, and a crushing assembly for crushing solid fuel is provided above the first screening plate 7; a rectangular box 8 is correspondingly provided at the lower part of the screening plate 5, a second screening plate 9 is obliquely arranged in the rectangular box 8, a vibration motor 20 is installed on one side of the bottom of the second screening plate 9, and the bottom of the rectangular box 8 is connected with the discharging port 3; a through hole 81 is opened at the bottom of the rectangular box 8 and the lowest end of the second screening plate 9, and a collecting box 11 is correspondingly provided below the through hole 81; a movable box 111 is slidably mounted in the collecting box 11, and the movable box 111 is fixedly connected to the inner side of the movable door 4.

[0019] The crushing assembly is specifically as follows: a crushing plate 16 is arranged above the first screening plate 7, a movable plate 12 is arranged in the housing 1 through a mounting groove 21 and is moved by the movable assembly, a first fixing rod 13 is fixed at both ends of the movable plate 12, a second fixing rod 15 is fixed at both sides of the top of the crushing plate 16, a first connecting rod 14 is hinged between the top of the first fixing rod 13 and the top of the second fixing rod 15, a second connecting rod 18 is hinged between the bottom of the first fixing rod 13 and the bottom of the second fixing rod 15, a fixing block 10 is fixedly installed at both sides of the screening plate 5, and a third connecting rod 19 is hinged between the middle of the second connecting rod 18 and the fixing block 10. A reinforcing rod 17 is fixed at both sides of the left end of the surface of the crushing plate 16, and the other end of the reinforcing rod 17 is fixed to the upper end of the second fixing rod 15.

[0020] The moving component is specifically as follows: an installation groove 21 is fixed in the shell 1, a slider 22 is slidably installed in the installation groove 21, the bottom of the moving plate 12 is fixedly connected to the slider 22, a screw rod 23 is rotatably installed in the installation groove 21, the slider 22 and the screw rod 23 are threadedly connected, and a rotating motor 24 is provided on one side of the installation groove 21 for driving the screw rod 23 to rotate.

[0021] Working principle: first, the solid raw material is put into the shell 1 through the feed port 2, and the solid fuel falling on the screen plate 5 slides onto the first screen plate 7 through the inclined plate 6, and the rotating motor 24 is started to make the screw 23 rotate in the installation groove 21, driving the slider 22 to slide, and then driving the movable plate 12 to move, so that the first fixed rod 13 moves. When the first fixed rod 13 moves, the first connecting rod 14 and the second connecting rod 18 hinged between the first fixed rod 13 and the second fixed rod 15 swing, and at the same time, the third connecting rod 19 hinged between the second fixed rod 15 and the second connecting rod 18 also swings, so that the crushing plate 16 moves up and down above the first screen plate 7, crushing the solid raw material, and passing through the first screen plate 7 The solid fuel is preliminarily screened to prevent larger solid fuel from entering the boiler and causing a decrease in combustion efficiency. Then, the solid fuel that passes through the first screen plate 7 enters the rectangular box 8 and falls onto the second screen plate 9. The vibration motor 20 is started to vibrate the second screen plate 9, thereby achieving further screening of the solid fuel. The screened solid fuel enters the boiler through the discharge port 3, and the solid fuel that cannot pass through the second screen plate 9 enters the mobile box 111 in the collection box 11 through the through hole 81. The staff can pull out the mobile box 111 by pulling the movable door 4 fixedly connected to the mobile box 111, so that the larger solid fuel in the mobile box 111 can be taken out, thereby ensuring that the size of the solid fuel entering the boiler is small, thereby improving the combustion efficiency of the boiler.

[0022] The above-mentioned specific embodiments are only several optional embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

Claims

1. A feed conveying device for a boiler with a screening structure, comprising a housing (1), a top side of the housing (1) being provided with a feed inlet (2), a bottom side being provided with a feed outlet (3), and a lower side of the housing (1) being provided with a movable door (4), characterized in that: A sieving plate (5) is provided on one side of the housing (1) near the feed inlet (2), an inclined plate (6) is fixed on one side of the interior of the sieving plate (5), a first sieving plate (7) is provided on the outer side of the inclined plate (6), and a crushing assembly for crushing solid fuel is provided above the first sieving plate (7); a rectangular box (8) is provided at the lower part of the sieving plate (5), a second sieving plate (9) is obliquely arranged in the rectangular box (8), a vibration motor (20) is installed on one side of the bottom of the second sieving plate (9), and the bottom of the rectangular box (8) is connected to the discharge port (3); a through hole (81) is provided at the bottom of the rectangular box (8) and at the lowest end of the second sieving plate (9), and a collecting box (11) is provided below the through hole (81).

2. The feed conveying device for a boiler with a screening structure according to claim 1, characterized in that: The crushing assembly specifically comprises: a crushing plate (16) is arranged above the first screening plate (7); a movable plate (12) is arranged in the housing (1) through a mounting groove (21) and is moved by the movable assembly; first fixing rods (13) are fixed at both ends of the movable plate (12); second fixing rods (15) are fixed on both sides of the top of the crushing plate (16); a first connecting rod (14) is hinged between the top of the first fixing rod (13) and the top of the second fixing rod (15); a second connecting rod (18) is hinged between the bottom of the first fixing rod (13) and the bottom of the second fixing rod (15); fixed blocks (10) are fixedly installed on both sides of the screening plate (5); and a third connecting rod (19) is hinged between the middle of the second connecting rod (18) and the fixed block (10).

3. The feed conveying device for a boiler with a screening structure according to claim 2, characterized in that: The moving assembly specifically comprises: a mounting groove (21) fixed in the housing (1); a slider (22) is slidably mounted in the mounting groove (21); a bottom of the moving plate (12) is fixedly connected to the slider (22); a screw rod (23) is rotatably mounted in the mounting groove (21); the slider (22) and the screw rod (23) are threadedly connected; and a rotating motor (24) for driving the screw rod (23) to rotate is provided on one side of the mounting groove (21).

4. The feed conveying device for a boiler with a screening structure according to claim 1, characterized in that: A movable box (111) is slidably mounted inside the collection box (11), and the movable box (111) is fixedly connected to the inner side of the movable door (4).

5. The boiler feed conveying device with a screening structure according to claim 2, characterized in that: Reinforcement rods (17) are fixed to both sides of the left end of the surface of the crushing plate (16), and the other end of the reinforcement rod (17) is fixed to the upper end of the second fixing rod (15).

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