Feeding structure of grate-fired chain grate furnace

Abstract

The utility model discloses a feeding structure of a grate-fired chain furnace, which relates to the technical field of grate-fired chain furnace equipment and comprises a feeding hopper, a pair of limiting grooves are arranged on two side walls of the feeding hopper, a pair of sealing plates are vertically and slidably arranged in the pair of limiting grooves, a rotating roller is rotatably arranged on the pair of sealing plates, and the rotating roller is arranged in the limiting grooves. A plurality of material stirring plates are uniformly arranged on the part, located in the feeding hopper, of the rotating roller in the circumferential direction, a motor is arranged on one sealing plate, the output end of the motor is connected with the rotating roller, and a pair of first fixing blocks are arranged on the side walls of the two sides of the feeding hopper; the discharging amount of the feeding hopper is adjusted by adjusting the rotating speed of the rotating roller and the multiple material stirring plates through the motor, and the vertical positions of the rotating roller and the multiple material stirring plates are adjusted through the pair of telescopic cylinders, so that the material stirring plates can disturb and dredge blocked fuel, the time for treating the blocked fuel is shortened, the phenomenon of material breakage in a hearth is prevented, and the service life of the hearth is prolonged. And the combustion stability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of layer-fired chain furnace equipment, in particular to a feeding structure of a layer-fired chain furnace. Background Art

[0002] The layer-fired chain boiler is a very mature boiler type, mainly used for heating and industrial steam supply. It is named because its grate is similar to a chain track. It is a furnace-type combustion equipment that is widely used in industrial boilers. The one with a chain grate is a chain furnace, which is a type of layer-fired furnace and has a mechanical combustion grate.

[0003] When a layer-fired chain furnace is in operation, fuel (such as coal, biomass, etc.) needs to be transported into the feed hopper, and the fuel then falls from the feed hopper onto the grate. Since the feed hopper is usually wide at the top and narrow at the bottom, with a bend between the upper and lower parts, it is easy for the fuel to arch at the bend, resulting in bulk and blockage. Manual processing is required when bulk and blockage occur, and the manual processing time is long, resulting in material breakage in the furnace and affecting the stability of combustion. In addition, the lack of a material shifting component in the feed hopper makes it impossible to adjust the amount of material discharged. Therefore, a feeding structure for a layer-fired chain furnace is in urgent need of development. Utility Model Content

[0004] In view of the above-mentioned deficiencies in the prior art, the utility model provides a feeding structure for a layer-burning chain furnace, which adjusts the rotational speed of a rotating roller and a plurality of stripper plates through a motor to adjust the material discharge amount of a feeding hopper, and a pair of telescopic cylinders adjust the vertical positions of the rotating roller and the plurality of stripper plates so that the stripper plates can disturb and clear blocked fuel, thereby reducing the time for dealing with blocked materials, preventing material shortages in the furnace, and improving the stability that affects combustion.

[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: a feeding structure of a layer-burning chain furnace, including a feeding hopper, a pair of limit grooves are opened on the side walls on both sides of the feed hopper, a pair of sealing plates are vertically slidably arranged in the limit grooves, a pair of rollers are rotatably arranged on the sealing plates, and a plurality of material-selecting plates are evenly arranged on the circumference of the part where the roller is located in the feed hopper, one of the sealing plates is provided with a motor, and the output end of the motor is connected to the roller, a pair of first fixed blocks are arranged on the side walls on both sides of the feed hopper, a pair of telescopic cylinders are arranged at the bottom of the first fixed blocks, a pair of second fixed blocks are connected to the telescopic ends of the telescopic cylinders, and a pair of second fixed blocks are arranged on a pair of sealing plates.

[0006] Preferably, the length of the sealing plate is longer than the vertical height of the feed hopper.

[0007] The utility model provides a feeding structure for a layer-fired chain furnace, which has the following beneficial effects:

[0008] 1. The utility model adjusts the feeding amount of the feed hopper by adjusting the rotation speed of the roller and the plurality of material-diverting plates through the motor. A pair of telescopic cylinders adjusts the vertical positions of the roller and the plurality of material-diverting plates, so that the material-diverting plates can disturb and clear the blocked fuel, thereby reducing the time for handling the blocked fuel, preventing the occurrence of material shortage in the furnace, and improving the stability that affects the combustion;

[0009] 2. The length of the sealing plate of the utility model is longer than the vertical height of the feed hopper. When a pair of telescopic cylinders drive a pair of sealing plates to move vertically upward, the sealing plates have sufficient length to seal the side walls of the feed hopper, thereby preventing fuel from falling outside the feed hopper. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the internal structure of the utility model;

[0011] Figure 2 It is the front view of the utility model.

[0012] In the figure: 1. feed hopper; 1-1. limit groove; 2. sealing plate; 3. roller; 4. material removal plate; 5. first fixed block; 6. telescopic cylinder; 7. second fixed block; 8. motor. DETAILED DESCRIPTION

[0013] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0014] like Figure 1-2 As shown, a feeding structure of a layer-burning chain furnace comprises a feeding hopper 1, and a pair of limiting grooves 1-1 are opened on both side walls of the feeding hopper 1, a pair of sealing plates 2 are vertically slidably arranged in the limiting grooves 1-1, and rollers 3 are rotatably arranged on the pair of sealing plates 2, and a plurality of material-discharging plates 4 are evenly arranged circumferentially on the part of the rollers 3 located in the feeding hopper 1, one of the sealing plates 2 is provided with a motor 8, and the output end of the motor 8 is connected to the roller 3, a pair of first fixed blocks 5 are arranged on both side walls of the feeding hopper 1, a pair of telescopic cylinders 6 are arranged at the bottom of the pair of first fixed blocks 5, a pair of second fixed blocks 7 are connected to the telescopic ends of the telescopic cylinders 6, and a pair of second fixed blocks 7 are arranged on a pair of sealing plates 2; the length of the sealing plate 2 is longer than the vertical height of the feeding hopper 1.

[0015] The detailed connection means are well-known in the art. The following mainly introduces the working principle and process, which are as follows:

[0016] In the present invention, the telescopic cylinder 6 and the motor 8 are connected to the external electric control system through wires. The above devices and connection methods are all existing technologies and will not be described in detail here.

[0017] According to the instruction manual Figure 1-2 It can be known that when the utility model is in use, the feed hopper 1 is arranged at the feed port of the layer-fired chain furnace, and fuel such as coal, biomass, etc. is transported into the feed hopper 1 through the feeding device, and the motor 8 arranged on one of the sealing plates 2 is started, and the output end of the motor 8 drives the connected roller 3 to rotate, and the roller 3 drives the multiple material-dispensing plates 4 arranged on its circumference to rotate, and the multiple material-dispensing plates 4 make the fuel fall onto the grate, and the discharge amount from the feed hopper 1 is adjusted by adjusting the rotation speed of the motor 8; when the feed hopper 1 is bulging or blocked, a pair of telescopic cylinders 6 arranged on the outer wall of the discharge hopper are started, so that the telescopic ends of the pair of telescopic cylinders 6 drive the connected pair of second fixed blocks 7 to move vertically upward, and the pair of second fixed blocks 7 drive the connected The sealing plate 2 slides vertically upward in a pair of limit grooves 1-1, and the side walls of the feed hopper 1 are vertical structures, so that the stripping plate 4 can contact the blocked fuel above, and the motor 8 continues to drive the roller 3 and the multiple stripping plates 4 to rotate, so that the stripping plates 4 stir and clear the blocked fuel. After clearing, the telescopic end of the telescopic cylinder 6 drives the sealing plate 2 to reset; the utility model adjusts the rotation speed of the roller 3 and the multiple stripping plates 4 by the motor 8 to adjust the discharge amount of the feed hopper 1, and the pair of telescopic cylinders 6 adjust the vertical positions of the rollers 3 and the multiple stripping plates 4, so that the stripping plates 4 can disturb and clear the blocked fuel, thereby reducing the time for processing the blocked materials, preventing the occurrence of material breakage in the furnace, and improving the stability that affects the combustion.

[0018] There is a possible implementation in which the length of the sealing plate 2 is longer than the vertical height of the feed hopper 1. When a pair of telescopic cylinders 6 drive a pair of sealing plates 2 to move vertically upward, the sealing plates 2 have sufficient length to seal the side walls of the feed hopper 1, thereby preventing fuel from falling outside the feed hopper 1.

[0019] 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 feeding structure for a grate furnace, comprising a feeding hopper (1), characterized in that: A pair of limiting grooves (1-1) are provided on both side walls of the feed hopper (1), a pair of sealing plates (2) are vertically slidably arranged in the limiting grooves (1-1), a pair of rollers (3) are rotatably arranged on the sealing plates (2), a portion of the rollers (3) located in the feed hopper (1) is evenly circumferentially provided with a plurality of material-dispensing plates (4), one of the sealing plates (2) is provided with a motor (8), the output end of the motor (8) is connected to the roller (3), a pair of first fixed blocks (5) are provided on both side walls of the feed hopper (1), a pair of telescopic cylinders (6) are provided at the bottom of the first fixed blocks (5), the telescopic ends of the telescopic cylinders (6) are connected to a pair of second fixed blocks (7), and a pair of the second fixed blocks (7) are provided on the pair of sealing plates (2).

2. A feeding structure for a grate furnace according to claim 1, characterized in that: The length of the sealing plate (2) is longer than the vertical height of the feed hopper (1).

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