Wood sorting device
By designing a wood sorting device combining rough selection rollers and conveyor belts, the problems of low combustion rate and low steam pressure caused by the mixing of large and small pieces of wood in the wood steam boiler are solved, and effective sorting of wood and stability of boiler production are achieved.
Patent Information
- Application Number
- CN202421844458.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-01
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-08-01
AI Technical Summary
In wood steam boilers, due to uneven pulverization of wood, large and small pieces of wood are mixed, the hopper is blocked, and the uneven cutting is affected, which affects the combustion rate and steam pressure.
A wood sorting device is designed, including a coarse selection roller, a feed conveyor belt and a feed conveyor belt. Through the cooperation of the conveyor belt and the coarse selection roller, large pieces of wood are automatically separated from small pieces of wood to ensure that the boiler only enters coarse or fine materials and avoids coarse and fine blockage.
Effective sorting of wood is achieved, the problems of hopper blockage and uneven cutting are avoided, the combustion rate and steam pressure are improved, and the stability of boiler production is ensured.
Smart Images
Figure CN223027841U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a wood sorting device, which is applicable to the field of separating and utilizing large and small pieces of wood. Background Art
[0002] Wood is sometimes used as fuel. For example, a wood steam boiler is an industrial boiler that uses wood as fuel to heat water to a certain parameter and produce high-temperature steam. During the operation of the steam boiler, due to the uneven crushing of the wood by the wood crusher, problems such as the mixing of large and small pieces, hopper blockage, and uneven feeding will occur, resulting in a low combustion rate of the wood, a reduction in the generated heat, a decrease in the steam pressure, and an impact on the subsequent boiler production. Content of the Utility Model
[0003] Aiming at the deficiencies of the prior art, the utility model discloses a wood sorting device. Through the cooperation of the conveyor belt and the rough selection roller, the large pieces of wood with poor crushing effect and the small pieces of wood in the wood are automatically separated and fed, so that the boiler only feeds coarse materials or fine materials at a certain moment, and the problem of blockage between thick and thin materials will not occur.
[0004] The technical solution adopted by the utility model is as follows: a wood sorting device, including a rough selection roller, a feeding conveyor belt, and a loading conveyor belt;
[0005] The conveying end of the feeding conveyor belt is connected end to end with the conveying starting end of the loading conveyor belt, and the rough selection roller is located above the feeding conveyor belt and the loading conveyor belt;
[0006] The rough selection roller runs in the opposite direction to the feeding conveyor belt, and the feeding conveyor belt and the loading conveyor belt run in the same direction;
[0007] The rough selection roller is provided with hoisting claws.
[0008] Further, the hoisting claws are arranged around the center of the roller shaft with a predetermined gap.
[0009] Furthermore, there is a predetermined gap between the teeth of the hoisting claws themselves.
[0010] Further, the feeding conveyor belt is horizontally arranged, the loading conveyor belt is inclined, the conveying starting end of the loading conveyor belt is lower than the conveying end, and the conveying end of the feeding conveyor belt and the conveying starting end of the loading conveyor belt are arranged in a vertically offset manner.
[0011] Further, the linear velocity of the rough selection roller and the running speed of the loading conveyor belt are both greater than the running speed of the feeding conveyor belt.
[0012] Furthermore, the running speed of the loading conveyor belt is also greater than the linear velocity of the rough selection roller.
[0013] The advantages of the present utility model are reflected in that the screened wood materials are separated by size. When used as boiler fuel, there is no jamming phenomenon, and compared with the original mixed feeding, the combustion is more complete. Description of the Drawings
[0014] Figure 1 This is the front view of a wood sorting device of the present utility model. Detailed Implementation Manner
[0015] The following further clarifies the present device in conjunction with the drawings and the actual operation form. It should be understood that the following specific implementation manners are only used to illustrate the present utility model and not to limit the scope of the present utility model. After reading the present utility model, various equivalent modifications made by those skilled in the art to the present utility model should be within the scope defined by the appended claims of the present utility model.
[0016] As Figure 1 shown, the main structure of a wood sorting device of the present utility model is disclosed, including a rough selection roller 1, a feeding conveyor belt 2, and a loading conveyor belt 3.
[0017] The rough selection roller 1 is located above the conveying end of the feeding conveyor belt 2 and the conveying starting end of the loading conveyor belt 3. The purpose of the rough selection roller 1 being located here is to be able to roll away the wood materials conveyed from the feeding conveyor belt 2 and then roll them onto the loading conveyor belt 3. Around the center of the roller shaft of the rough selection roller 1, there are hoisting claws with a predetermined gap. The so-called predetermined gap is determined according to the size of the wood materials to be wound. By reasonably designing the gap of the hoisting claws, wood material blocks larger than the gap on the feeding conveyor belt 2 can be screened out. At the same time, there is also a predetermined gap between each tooth of each hoisting claw itself, and this gap can let small pieces of wood materials fall through and hold large pieces of wood materials.
[0018] The function of the feeding conveyor belt 2 is to convey the wood materials of mixed sizes forward. The conveying end of the feeding conveyor belt 2 and the conveying starting end of the loading conveyor belt 3 are in non-contact connection, so that the materials on the feeding conveyor belt 2 can be conveyed onto the loading conveyor belt 3. At the same time, the rough selection roller 1 is arranged above the feeding conveyor belt 2, and the wood materials within the specification range can be rolled away by the rough selection roller 1. Therefore, in fact, for the materials on the feeding conveyor belt 2, on the one hand, its large wood material blocks (also called rough materials) are rolled away by the rough selection roller 1, and on the other hand, its small wood material blocks are conveyed onto the loading conveyor belt 3. Only part of the wood materials are conveyed to the loading conveyor belt 3, specifically the small wood material blocks (also called fine materials) screened by the rough selection roller 1.
[0019] The function of the loading conveyor belt 3 is to convey the separated large and small pieces of wood forward. The rough selection roller 1 is arranged above the loading conveyor belt 3. The wood wound on the rough selection roller 1 can fall onto the loading conveyor belt 3 during rotation; the feeding conveyor belt 2 is connected to the starting end of the conveying of the loading conveyor belt 3 and can also convey the materials on the feeding conveyor belt 2 to the loading conveyor belt 3. Since the wood wound on the set rough selection roller 1 is large pieces of wood and the remaining wood on the feeding conveyor belt 2 is small pieces of wood, by reasonably designing the running speeds in all aspects, a situation where large and small pieces of wood are separated and conveyed will occur on the loading conveyor belt 3.
[0020] Furthermore, the feeding conveyor belt 2 is horizontally arranged, the loading conveyor belt 3 is inclinedly arranged, the conveying end of the feeding conveyor belt 2 and the starting end of the conveying of the loading conveyor belt 3 are arranged with an up-and-down offset, and the starting end of the conveying of the loading conveyor belt 3 is lower than the conveying end, which is convenient for conveying.
[0021] In terms of the running direction, the running direction of the side of the rough selection roller 1 opposite to the feeding conveyor belt 2 should be opposite, and the running direction of the loading conveyor belt 3 is the same as that of the feeding conveyor belt 2.
[0022] In terms of the relative speed, the speed of the feeding conveyor belt 2 should be the slowest, and the linear speed of the rough selection roller 1 should be greater than that of the feeding conveyor belt 2 so that the rough selection roller 1 has enough time to wind up the large pieces of wood on the feeding conveyor belt 2. The speed of the loading conveyor belt 3 should also be greater than that of the feeding conveyor belt 2 and preferably greater than the linear speed of the rough selection roller 1 so that the wood on the loading conveyor belt 3 does not pile up.
[0023] During use, first place the large and small mixed wood on the feeding conveyor belt 2. Along with the slow running of the feeding conveyor belt 2, it is sent to the lower part of the rough selection roller 1. The rough selection roller 1 and the feeding conveyor belt 2 run in opposite directions. The rough selection roller 1 rotates quickly to roll up the large pieces of wood in the wood, and along with the rotation of the rough selection roller 1, the large pieces of wood are thrown onto the loading conveyor belt 3; the remaining small pieces of wood on the feeding conveyor belt 2 continue to run on the feeding conveyor belt 2 until the end of the conveyor belt and then also fall onto the loading conveyor belt 3. Due to the speed difference between the rough selection roller 1 and the feeding conveyor belt 2, on the loading conveyor belt 3, the large and small pieces of wood are fed separately.
Claims
1. A wood sorting device, characterized in that: It comprises a roughing roller (1), a feeding conveyor belt (2) and a loading conveyor belt (3); The conveying end of the feed conveyor belt (2) is connected end to end with the conveying start end of the loading conveyor belt (3), and the roughing roller (1) is located above the feed conveyor belt (2) and the loading conveyor belt (3); The roughing roller (1) and the feed conveyor belt (2) run in the opposite direction, and the feed conveyor belt (2) and the loading conveyor belt (3) run in the same direction; The roughing roller (1) is provided with a hoisting claw.
2. The wood sorting device according to claim 1, characterized in that: The roughing roller (1) is provided with hoisting claws with a predetermined gap around the center of the roller shaft.
3. The wood sorting device according to claim 1 or 2, characterized in that: There are predetermined gaps between the teeth of the hoisting claw itself.
4. The wood sorting device according to claim 1, characterized in that: The feed conveyor belt (2) is arranged horizontally, the loading conveyor belt (3) is arranged obliquely, the conveying start end of the loading conveyor belt (3) is lower than the conveying end end, and the conveying end end of the feed conveyor belt (2) and the conveying start end of the loading conveyor belt (3) are arranged in an up-down staggered manner.
5. The wood sorting device according to claim 1, characterized in that: The linear speed of the roughing roller (1) and the running speed of the loading conveyor belt (3) are both greater than the running speed of the feeding conveyor belt (2).
6. The wood sorting device according to claim 5, characterized in that: The running speed of the feeding conveyor belt (3) is also greater than the linear speed of the roughing roller (1).