Mechanical rapping device for preventing ash clogging of scraper
By designing a periodic vibration device in the scraper, and using the reducer to drive the knock hammer to clean up the ash-falling channel, the scraper blockage problem is solved, and efficient ash cleaning is achieved, saving costs.
Patent Information
- Application Number
- CN202420986834.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-09
- Publication Date
- 2025-01-10
- Estimated Expiration
- 2034-05-09
AI Technical Summary
The existing scraper machine's ash-fall channel is prone to wall hanging phenomenon, which will cause the channel to be blocked after a long period of accumulation and affect the flue gas treatment efficiency.
A mechanical vibration device including the scraper main body, the driving shaft, the ash-fall channel and the hammer used for periodic hammering is designed. The hammer is driven by the reducer to perform phased alternate traction and release, so as to achieve periodic vibration Clean up dust.
It effectively prevents the scraper from blocking dust, uses the original ash transmission device as a power source, saves the cost of equipping additional motors and power supplies, and solves the problem of dust accumulation.
Smart Images
Figure CN222330792U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of rapping devices, in particular to a mechanical rapping device for preventing a scraper from being blocked by ash. Background Art
[0002] The municipal solid waste incineration power generation technology uses the heat energy generated by waste incineration to generate electricity, which can achieve the harmlessness, reduction and resource utilization of municipal solid waste. It is the mainstream technology for the harmless disposal of municipal solid waste. The flue gas generated by high-temperature incineration of garbage contains pollutants such as dust, heavy metals, and acidic gases. In the process of harmless treatment of garbage, lime slurry, dry powder, and activated carbon are sprayed into the flue gas to neutralize acidic gases and adsorb heavy metals and other pollutants. In the dust collector, filter bags are used to intercept dust in the flue gas, dry powder after neutralization of acidic gases, and activated carbon after adsorbing heavy metals. These fly ashes are periodically pulsed and transported to the fly ash tank for storage by a scraper. However, in the ash-falling channel position of the existing scraper, fly ash is prone to form a wall-hanging phenomenon on the ash-falling channel, which is prone to cause channel blockage after long-term accumulation. Utility Model Content
[0003] The utility model aims to solve the problem that fly ash is easily attached to the wall of the ash falling channel of the existing scraper machine, and the channel is easily blocked after long-term accumulation.
[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0005] A mechanical rapping device for preventing a scraper from being blocked by dust, comprising a scraper body, a driving shaft of the scraper arranged on the scraper body and connected to a transmission motor by a chain, and an ash falling channel arranged on the scraper body, characterized in that it also comprises a rapping hammer for periodically rapping the ash falling channel to prevent ash blocking, and a reducer drivingly connected to the driving shaft of the scraper for driving the rapping hammer to rap;
[0006] The reducer includes a driving gear A, a driven gear B, a toothless gear C, and a traction gear D. The driving gear A is fixedly connected to the extended end of the scraper driving shaft, the driven gear B and the toothless gear C are coaxially arranged, the driving gear A is meshed with the driven gear B, the toothless gear C is meshed with the traction gear D, and the traction gear D is externally connected to a striking hammer via a traction rope.
[0007] A further improvement is that the driven gear B and the toothless gear C form a gear set and rotate simultaneously.
[0008] A further improvement is that the gear surfaces of the driven gear B and the toothless gear C are connected and fixed by a plurality of latches.
[0009] A further improvement is that a plurality of the latches are distributed in a ring shape around the axis of the driven gear B and the toothless gear C.
[0010] A further improvement is that at least two latches are provided.
[0011] A further improvement is that a pulley E is provided between the traction gear D and the striking hammer, and the traction rope crosses the pulley E.
[0012] A further improvement is that one end of the striking hammer is also connected to the ash falling channel through a limiting rope.
[0013] Compared with the existing technology, the above technical solution has the following beneficial effects:
[0014] The existing ash conveying transmission device is used as the power source, and the speed reducer is used to change the speed so as not to affect the original ash conveying motor power. At the same time, the reducer is designed to alternately pull and release the hammer in stages to achieve periodic vibration to prevent the scraper from being blocked by ash;
[0015] The problem of dust accumulation in the ash falling channel is solved. The original ash conveying transmission device is modified and used as a power source, which does not require additional motors and power supplies to save costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.
[0017] Figure 1 It is a schematic diagram of the working principle structure of the utility model;
[0018] Figure 2 It is a schematic diagram of the internal principle structure of the reducer 3 in the utility model.
[0019] Explanation of the accompanying reference numerals: scraper body 1, scraper driving shaft 2, reducer 3, traction rope 4, beating hammer 5, ash falling channel 6, driving gear A, driven gear B, toothless gear C, traction gear D, pulley E. DETAILED DESCRIPTION
[0020] See also Figure 1-Figure 2As shown, the technical solution adopted in this specific embodiment is: a mechanical rapping device for preventing a scraper from being blocked by dust, comprising a scraper body 1, a scraper driving shaft 2 arranged on the scraper body 1 and connected to a transmission motor by a chain, an ash falling channel 6 arranged on the scraper body 1, and also comprising a rapping hammer 5 for periodically rapping the ash falling channel 6 to prevent ash blocking, and a reducer 3 connected to the scraper driving shaft 2 for driving the rapping hammer 5 to rap;
[0021] The reducer 3 includes a driving gear A, a driven gear B, a toothless gear C, and a traction gear D. The driving gear A is fixedly connected to the extended end of the scraper driving shaft 2, the driven gear B and the toothless gear C are coaxially arranged, the driving gear A is meshed with the driven gear B, the toothless gear C is meshed with the traction gear D, and the outside of the traction gear D is connected to a striking hammer 5 through a traction rope 4.
[0022] The driven gear B and the toothless gear C form a gear set and rotate simultaneously.
[0023] The gear surfaces of the driven gear B and the toothless gear C are connected and fixed by a plurality of pins.
[0024] Among them, a plurality of the latches are distributed in a ring shape around the axis of the driven gear B and the toothless gear C.
[0025] Wherein, at least two latches are provided.
[0026] A pulley E is further provided between the traction gear D and the beating hammer 5, and the traction rope 4 crosses the pulley E. The additional pulley E can better help the traction rope drive the beating hammer to store energy and reduce friction.
[0027] One end of the hammer 5 is also connected to the ash falling channel 6 through a limiting rope. The setting of the limiting rope can play a limiting role, avoiding excessive extension of the hammer to affect the effect of the hammering and the service life of the equipment.
[0028] The working principle of the utility model is as follows: when in use, the driving shaft of the scraper extends and connects the driving gear A on the reducer, the driving gear A drives the driven gear B and, the driven gear B and the gear C are coaxial, and the gear surfaces are connected and fixed with a latch, the driven gear B and the gear C form a gear set and rotate at the same time, the gear C drives the traction gear D to rotate, the traction gear D is connected to the traction rope of the hammer, when the traction gear D is driven by the gear C to rotate forward, the traction rope gradually contracts to lift the height of the hammer; the gear C The top teeth are missing on the upper part. When the joint surface of the toothless gear C and the traction gear D rotates to the toothless part, the traction gear D loses the positive transmission force, and the striking hammer falls rapidly under the influence of gravity to strike the ash falling channel, causing the wall of the ash falling channel to vibrate and clean the accumulated dust hanging on the wall. During the falling process of the striking hammer, the traction gear D is flipped under the influence of the traction rope, and after the toothless gear C and the traction gear D are re-combined, a new round of striking hammer lifting height and energy storage process is carried out. In this way, staged alternating traction and releasing of the striking hammer are formed to achieve periodic vibration to prevent the scraper from being blocked by dust.
[0029] The above shows and describes the basic principle and main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents. Anything not described in detail in the utility model is a well-known technology of those skilled in the art.
Claims
1. A mechanical vibration device for preventing a scraper from being blocked by dust, comprising a scraper body, a driving shaft of the scraper which is connected to a transmission motor by a chain and driven by the scraper body, and a dust falling channel which is arranged on the scraper body, characterized in that: It also includes a hammer for periodically beating the ash falling channel to prevent ash blockage, and a reducer connected to the driving shaft of the scraper conveyor to drive the hammer to perform beating; The reducer includes a driving gear A, a driven gear B, a toothless gear C, and a traction gear D. The driving gear A is fixedly connected to the extended end of the scraper driving shaft, the driven gear B and the toothless gear C are coaxially arranged, the driving gear A is meshed with the driven gear B, the toothless gear C is meshed with the traction gear D, and the traction gear D is externally connected to a striking hammer via a traction rope.
2. A mechanical rapping device for preventing scraper conveyor from being blocked by dust according to claim 1, characterized in that: The driven gear B and the toothless gear C form a gear set and rotate simultaneously.
3. A mechanical rapping device for preventing scraper conveyor from being blocked by dust according to claim 1, characterized in that: The gear surfaces of the driven gear B and the toothless gear C are connected and fixed by a plurality of latches.
4. A mechanical rapping device for preventing scraper conveyor from being blocked by dust according to claim 3, characterized in that: A plurality of the latches are distributed in a ring shape around the axis of the driven gear B and the toothless gear C.
5. A mechanical rapping device for preventing scraper conveyor from being blocked by dust according to claim 4, characterized in that: At least two latches are provided.
6. A mechanical rapping device for preventing scraper conveyor from being blocked by dust according to claim 1, characterized in that: A pulley E is also provided between the traction gear D and the striking hammer, and the traction rope crosses the pulley E.
7. A mechanical rapping device for preventing scraper conveyor from being blocked by dust according to claim 1, characterized in that: One end of the striking hammer is also connected to the ash falling channel through a limiting rope.