A linkage device to prevent jamming of the feeding grate in a waste incinerator.

Abstract

This invention discloses a linkage device for preventing grate jamming in waste incinerators, comprising a multi-row feeding grate system arranged in parallel. Each row of feeding grate systems includes a furnace bottom support, a drive piston, left and right pulley assemblies, and a grate. The left and right pulley assemblies are fixedly mounted on the furnace bottom support, and the grate is mounted on the left and right pulley assemblies, allowing the grate to move on the left and right pulley assemblies. The drive piston drives the grate forward and backward. A linkage component is also provided between each row of grates, enabling adjacent rows of feeding grates to move synchronously. Through the linkage component, a normal grate can drive an abnormal grate to move together, thereby eliminating the grate jamming problem.

Description

Technical Field

[0001] This invention patent relates to a feeding grate for a waste incinerator, and more particularly to a linkage device for preventing jamming of the feeding grate for a waste incinerator. Background Technology

[0002] Currently, during operation, the feeding grates of municipal solid waste incinerators are prone to jamming (jamming refers to the feeding grates failing to reach their normal position and remaining stuck in the middle, preventing the system from moving) or garbage accumulating on the upper feeding grates, causing some grates to be unable to retract normally, thus preventing normal feeding of the incinerator grates. If this is not addressed promptly, it can easily lead to drastic fluctuations in the incinerator load or even the burning out of garbage on the grates, significantly impacting the stability of the unit. It has been learned that most municipal solid waste incineration plants require more than 2 hours to handle similar problems, and the methods used are often to increase hydraulic pressure by adding hydraulic devices and manually pulling back the grates using large hand-operated hoists. This is not only time-consuming but also economically unreasonable and poses safety risks. Summary of the Invention

[0003] To address the problems of existing technologies, this invention proposes a linkage device to prevent grate jamming in waste incinerators. Ear plates are installed at the synchronous positions of each grate column. (Because the waste incinerator needs continuous feeding, the grate columns must move forward or backward synchronously during normal operation. However, due to system issues, some grate columns may sometimes jam, causing them to become stationary and thus desynchronizing with adjacent columns, severely affecting normal operation. Therefore, linkage components are installed at the synchronous positions of each grate column. When a grate column malfunctions and cannot move, the adjacent grate column is moved to the synchronous position of the malfunctioning grate. The linkage components allow the normal grate column to drive the malfunctioning grate column, thereby eliminating the jamming problem and effectively solving the existing technical problems.)

[0004] The technical solution of this invention to solve the technical problem is a linkage device for preventing jamming of the feeding grate in a waste incinerator, comprising a multi-row feeding grate system arranged in parallel. Each row of feeding grate systems includes a furnace bottom support, a drive piston, left and right pulley assemblies, and a grate. The left and right pulley systems are fixedly mounted on the furnace bottom support, and the grate is mounted on the left and right pulley assemblies. The grate can move on the left and right pulley assemblies. The drive piston is used to drive the grate forward and backward. The feature is that a linkage component is also provided between each row of grates, and the linkage component enables adjacent two rows of feeding grates to form synchronous linkage.

[0005] Preferably, the linkage component is a pin assembly, which includes a pin, left and right ear plates, and a pin end fixing component. The pin also has a pin hole, and the left and right ear plates each have a shaft hole. The left and right ear plates are respectively welded and fixed to the furnace bottom support of adjacent left and right feeding grates. The pin is inserted into the shaft hole of the left and right ear plates, and the pin end fixing component prevents the pin from loosening.

[0006] Preferably, the pin end fixing component is a cotter pin.

[0007] Preferably, the pin end fixing component is a bolt.

[0008] The beneficial effects of this invention: This invention proposes a linkage device to prevent grate jamming in waste incinerators. During normal operation, due to the continuous feeding of the waste incinerator, each grate needs to move forward or backward synchronously. However, due to system reasons, sometimes individual grates may jam, causing them to become stationary and thus desynchronizing with adjacent grates, seriously affecting the normal operation of the grate. Therefore, a linkage component is also installed between each grate column, which enables adjacent grate columns to move synchronously. When a grate jams and cannot move during daily operation, the adjacent grate is moved to a position synchronized with the faulty grate. Through the linkage component, the normal grate can drive the abnormal grate to move together, thereby eliminating the grate jamming problem and effectively solving the problems of the prior art. Attached Figure Description

[0009] Figure 1 , Figure 2 , Figure 3 This is a schematic diagram of a structure according to an embodiment of the prior art. Figure 1 Main view, Figure 2 This is an enlarged structural diagram (front view) of a single-row feed grate. Figure 3 This is the right view.

[0010] Figures 4-8 This is a schematic diagram of the structure of the first embodiment of the present invention. Wherein, Figure 4 Main view, Figure 6 Right view Figure 5 This is an enlarged schematic diagram of the structure at point K1. Figure 7 This is an enlarged schematic diagram of the structure at point K2. Figure 8 This is an enlarged schematic diagram of the pin assembly structure.

[0011] In the picture:

[0012] 1. Incinerator support frame;

[0013] 1.1 First column feeding grate system, 1.2 Second column feeding grate system, 1.3 Third column feeding grate system, 1.4 Fourth column feeding grate system;

[0014] 1.1A, First row of furnace bottom support; 1.1B, First row of drive pistons; 1.1C, First row of feeding grate frame; 1.1D, First row of feeding grate plates; 1.1E11, 1.1E12, 1.1E13, First row of left pulley assemblies; 1.1E2, First row of right pulley assembly; 1.1F, First row of feeding hoppers;

[0015] 1.2A, Second row of furnace bottom support; 1.2B, Second row of drive piston; 1.2C, Second row of feeding grate frame; 1.2D, Second row of feeding grate plates;

[0016] 1.3A, Third row of furnace bottom support; 1.3B, Third row of drive piston; 1.3C, Third row of feeding grate frame; 1.3D, Third row of feeding grate plates;

[0017] 1.4A, Fourth row of furnace bottom support; 1.4B, Fourth row of drive piston; 1.4C, Fourth row of feeding grate frame; 1.4D, Fourth row of feeding grate plates;

[0018] 2.1 First linkage pin assembly, 2.2 Second linkage pin assembly, 2.3 Third linkage pin assembly;

[0019] 2.11 Pin, 2.121 Left Ear Plate, 2.122 Right Ear Plate, 2.131, 2.132 Cotter Pin. Detailed Implementation

[0020] Figure 1 , Figure 2 , Figure 3 This is a schematic diagram of a prior art embodiment. The diagram shows that, in one embodiment of the prior art, the waste incinerator feeding grate has a four-row parallel feeding grate system, including: a first feeding grate system 1.1, a second feeding grate system 1.2, a third feeding grate system 1.3, and a fourth feeding grate system 1.4. Taking the first grate system 1.1 as an example, the first feeding grate system 1.1 includes a first grate bottom support 1.1A, a first driving piston 1.1B, a first feeding grate frame 1.1C, and a first feeding grate plate 1.1D. The first feeding grate plate 1.1D is mounted and fixed on the first feeding grate frame 1.1C. As shown in the diagram, under the first feeding grate frame 1.1C, there are also first-row left pulley assemblies 1.1E11, 1.1E12, 1.1E13 and a first-row right pulley assembly 1.1E2.

[0021] In existing technologies, during the operation of the feeding grate of a municipal solid waste incinerator, due to the multi-row parallel operation structure, one row is prone to jamming during its forward movement, preventing normal feeding. If this is not addressed promptly, it can easily cause drastic fluctuations in the incinerator load or even lead to the waste burning out of the grate, significantly impacting the stability of the unit. Current methods typically involve manual pulling back using large hand-operated hoists, which is time-consuming and poses certain safety risks.

[0022] Figures 4-8 This is a schematic diagram of the structure of the first embodiment of the present invention. As shown in the figure, unlike the prior art, in this example, a first linkage pin assembly 2.1 is provided at a synchronous position between the first column of feeding grate 1.1C and the second column of feeding grate 1.2C; a second linkage pin assembly 2.2 is provided at a synchronous position between the second column of feeding grate 1.2C and the third column of feeding grate 1.3C; and a third linkage pin assembly 2.3 is provided at a synchronous position between the third column of feeding grate 1.3C and the fourth column of feeding grate 1.4C. The first linkage pin assembly 2.1 enables synchronous linkage between the first column of feeding grate system 1.1 and the second column of feeding grate system 1.2; the second linkage pin assembly 2.2 enables synchronous linkage between the second column of feeding grate system 1.2 and the third column of feeding grate system 1.3; and the third linkage pin assembly 2.3 enables synchronous linkage between the third column of feeding grate system 1.3 and the fourth column of feeding grate system 1.4.

[0023] Figure 8As shown, taking the first linkage pin assembly 2.1 as an example, the first linkage pin assembly 2.1 includes a pin 2.11, a left ear plate 2.121, a right ear plate 2.122, and cotter pins 2.131 and 2.132 disposed at both ends of the pin 2.11. The left ear plate 2.121 and the right ear plate 2.122 each have shaft holes, and the left ear plate 2.121 and the right ear plate 2.122 are respectively welded and fixed between adjacent first column feed grate frame 1.1C and second column feed grate frame 1.2C, and the first column feed grate frame 1.1C and the second column feed grate frame 1.2C are in a synchronous position. During normal operation, if the second feeding grate system 1.2 becomes jammed, preventing the grate from moving, the system can be controlled to synchronize the first, third, and fourth feeding grate systems 1.1, 1.3, and 1.4 with the second feeding grate system 1.2. Then, pins are inserted into the corresponding left and right ear plate holes, and cotter pins are used to prevent the pins from loosening. The system is then started to synchronize the first, second, third, and fourth feeding grate systems 1.1, 1.2, 1.3, and 1.4. At this point, the first and second feeding grate systems 1.1 and 1.3 will move the jammed second feeding grate system 1.2, thus quickly and easily resolving the grate jamming problem.

Claims

1. A linkage device for preventing jamming of the feeding grate in a waste incinerator, comprising a multi-row feeding grate system arranged in parallel, each row of feeding grate system comprising a furnace bottom support, a drive piston, left and right pulley assemblies, and a grate, wherein the left and right pulley assemblies are fixedly mounted on the furnace bottom support, the grate is mounted on the left and right pulley assemblies, the grate is movable on the left and right pulley assemblies, and the drive piston is used to drive the grate forward and backward, characterized in that... A linkage component is also installed between each grate column, which enables adjacent feeding grates to move synchronously. The linkage component is a pin assembly, which includes a pin, left and right ear plates, and a pin end fixing component. The pin also has a pin hole, and the left and right ear plates each have a shaft hole. The left and right ear plates are respectively welded and fixed to the furnace bottom support of adjacent left and right feeding grates. The pin is inserted into the shaft hole of the left and right ear plates, and the pin end fixing component prevents the pin from loosening. The linkage component enables the normal grate to move together with the jammed grate.

2. The linkage device for preventing jamming of the feeding grate in a waste incinerator according to claim 1, characterized in that, The pin end fixing component is a cotter pin.

3. The linkage device for preventing jamming of the feeding grate in a waste incinerator according to claim 1, characterized in that, The pin end fixing component is a bolt.

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