Chain grate furnace grate deviation rectifying device
By installing guide wheels on both sides of the chain grate and connecting them to a fixed shaft, and using the guide wheels to limit and compress the long pins, the problem of grate deviation is solved, automatic grate correction is achieved, combustion efficiency and equipment stability are improved, and maintenance costs are reduced.
Patent Information
- Application Number
- CN202520015279.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-03
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-01-03
AI Technical Summary
Chain grate furnaces are prone to deviation during operation, leading to uneven combustion, energy waste, equipment wear and malfunctions, and may even cause safety accidents.
A grate correction device is designed. Guide wheels are set on both sides of the furnace body and connected to a fixed shaft. The guide wheels limit the long pin to prevent it from running off-center, and automatic correction is achieved through chain drive.
It effectively prevents grate deviation, improves combustion efficiency, reduces equipment wear and malfunctions, lowers maintenance costs, is versatile and easy to install, and ensures stable equipment operation.
Smart Images
Figure CN223840387U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of industrial boiler technology, and in particular to a chain grate correction device. Background Technology
[0002] Chain grate furnaces, also known as molten salt furnaces, can experience grate deviation during operation due to various reasons, including differences in the adjusting bolts on both sides of the grate, imbalance between the front and rear axles of the grate, uneven wear of the grate plates, and manufacturing and installation errors. Grate deviation can lead to numerous problems:
[0003] 1. Grate misalignment will affect the uniform distribution of coal and the combustion effect, resulting in incomplete combustion, energy waste, and reduced thermal efficiency.
[0004] 2. Deviation may cause the long pins of one side of the grate to become too long and rub against the slide rail, which will aggravate the wear of the long pins and slide rail. In severe cases, it may cause the grate to "jam" or even break, resulting in equipment failure and shutdown, causing great economic losses to production, and may also cause safety accidents. Utility Model Content
[0005] The present invention aims to provide a chain grate correction device to solve the problem of grate deviation in the prior art.
[0006] This solution provides a chain grate correction device, which includes a furnace body, a grate inside the furnace body, a sprocket mechanism driven by a driver connected to the grate, a grate including multiple grate plates, two adjacent grate plates being connected by a long pin, a through groove on the furnace body, a guide wheel at the through groove, a fixed shaft rotatably connected to the guide wheel, the fixed shaft being fixedly connected to the grate, the guide wheel being close to the end of the long pin, and a gap being provided between the guide wheel and the long pin.
[0007] The working principle and beneficial effects of this solution are as follows: During operation, the grate moves laterally via the sprocket drive. During operation, due to various reasons such as differences in the adjusting bolts on both sides of the grate, uneven wear of the grate plates, and manufacturing and installation errors, the long pins may deviate from their original position. As the grate moves, multiple long pins sequentially approach the guide rollers. Due to the guide rollers' design, if a long pin approaches the guide roller, the guide roller rotates, and due to the guide roller's limiting action, it pushes the long pin back to its original position, thus preventing deviation. The squeezing action of the guide roller generates a reverse force on the long pin, causing the grate to return to the correct position. This solution has few components, is easy to manufacture and install, and has low equipment costs, maintenance costs, and a low failure rate. It is applicable to chain grate furnaces of different sizes and types, possessing a certain degree of versatility. No complex operating procedures are required. Once installed and debugged, it can automatically perform its correction function during operation without affecting the normal operation of the grate.
[0008] Furthermore, guide wheels are provided on both sides of the furnace body. This arrangement allows for lateral action, thereby preventing the grate from deviating from its proper position.
[0009] Furthermore, the fixed shaft is welded to the grate. After connecting the guide wheel to the fixed shaft, the two ends of the fixed shaft are then welded to the upper and lower ends of the through slot, which facilitates processing.
[0010] Furthermore, the sprocket mechanism includes two sprockets, one of which is connected to a speed reducer that drives its rotation. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the structure of a chain grate correction device for a chain furnace according to the present invention. Detailed Implementation
[0012] The following detailed explanation illustrates the specific implementation methods:
[0013] The reference numerals in the accompanying drawings of the instruction manual include: furnace body 1, grate bar 2, long pin 3, sprocket 4, through groove 5, guide wheel 6, fixed shaft 7, and reducer 8.
[0014] The basic implementation examples are as follows: Figure 1 As shown: A chain grate correction device for a furnace includes a furnace body 1, a grate is provided inside the furnace body 1, and the grate is connected to a sprocket 4 mechanism driven by a driver. The sprocket 4 mechanism includes two sprockets 4, one of which is connected to a reducer 8 that drives its rotation. The housing of the reducer 8 is fixedly connected to the outer wall of the furnace body 1. The grate includes multiple grate plates 2, and two adjacent grate plates 2 are connected by long pins 3. Both sides of the furnace body 1 are provided with through grooves 5, and guide wheels 6 are provided at the through grooves 5. The guide wheels 6 are rotatably connected to a fixed shaft 7, which is welded to the grate. The guide wheels 6 are connected to the grate through the fixed shaft 7. The guide wheels 6 are close to the end of the long pins 3, and there is a gap of 5mm between the guide wheels 6 and the long pins 3. The diameter of the guide wheels 6 is 80mm.
[0015] During operation, the grate moves laterally driven by the sprocket 4. Due to various reasons such as differences in the adjusting bolts on both sides of the grate, uneven wear of the grate plates 2, and manufacturing and installation errors, the long pins 3 may deviate during operation. As the grate moves, multiple long pins 3 sequentially approach the guide roller 6. Because of the guide roller 6's design, if a long pin 3 approaches the guide roller 6, the guide roller 6 rotates, and due to the guide roller 6's limiting action, it pushes the long pin 3 back to its original position, thus preventing deviation. The squeezing action of the guide roller 6 generates a reverse force that pushes the grate back to the correct position. This solution has fewer components, is easy to manufacture and install, and has low equipment cost, maintenance cost, and failure rate. It can be applied to chain grate grates of different sizes and types, possessing a certain degree of versatility. No complex operating procedures are required; once installed and debugged, it can automatically perform its correction function during operation. The size and shape of the rollers should match the edge of the grate to ensure good contact and generate sufficient correction force. A suitable roller diameter and width can increase the contact area with the grate and improve the correction effect. The roller material needs to have sufficient strength and wear resistance to withstand the friction force during grate operation.
[0016] The above descriptions are merely embodiments of this utility model, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.
Claims
1. A chain grate correction device, comprising a furnace body, wherein a grate is disposed within the furnace body, characterized in that: The grate is connected to a sprocket mechanism driven by a driver. The grate includes multiple grate plates, and two adjacent grate plates are connected by a long pin. The furnace body is provided with a through groove, and a guide wheel is provided at the through groove. The guide wheel is rotatably connected to a fixed shaft, which is fixedly connected to the grate. The guide wheel is close to the end of the long pin, and there is a gap between the guide wheel and the long pin.
2. The chain grate correction device for a chain furnace according to claim 1, characterized in that: Guide wheels are provided on both sides of the furnace body.
3. The chain grate correction device for a chain furnace according to claim 2, characterized in that: The fixed shaft is welded to the grate.
4. The chain grate correction device for a chain furnace according to claim 3, characterized in that: The sprocket mechanism includes two sprockets, one of which is connected to a speed reducer that drives its rotation.