Incinerator grate furnace bottom ash hopper
By installing an auxiliary ash-falling component in the ash hopper at the bottom of the grate furnace, the drive motor drives the rotating shaft and eccentric wheel to rotate, the impeller accelerates the ash and slag falling, and the lever and ball block collide with the inner wall to remove dust, thus solving the problem of dust accumulation on the inner wall of the ash hopper and realizing the rapid discharge of ash and slag and the cleaning of the inner wall.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XINGHUA JINGRUI MACHINERY
- Filing Date
- 2025-03-07
- Publication Date
- 2026-06-09
AI Technical Summary
The inner wall of the ash hopper at the bottom of the grate furnace easily accumulates a large amount of dust, making cleaning a persistent problem.
An auxiliary ash-falling assembly was designed, comprising a rotating shaft, an impeller, an eccentric wheel, a lever, and balls. The rotating shaft and eccentric wheel are driven to rotate by a drive motor, the impeller accelerates the falling of ash and slag, and the lever and balls collide with the inner wall to remove adsorbed dust.
This enables rapid discharge of ash and slag and effective cleaning of the inner wall dust, thus improving the cleaning efficiency of the ash hopper.
Smart Images
Figure CN224340131U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of grate furnace technology, specifically to an ash hopper at the bottom of an incinerator grate furnace. Background Technology
[0002] Waste falls along the chute onto the feeding device platform, which then pushes the waste onto the grate. The grate is typically divided into multiple zones, including a drying zone, a gasification zone, a combustion zone, and a burnout zone. The horizontal and vertical movement of each zone's grate can be independently adjusted. As the waste slides and tumbles on the grate, it is dried by the high-temperature primary air below the grate and influenced by radiant heat within the furnace, thus initiating combustion. The slag produced after combustion falls into the ash hopper, where it is collected.
[0003] In the prior art, a waste incineration mechanical grate furnace bottom ash hopper with announcement number CN216346290U eliminates the first straight section between the first diameter-changing section and the air duct and manhole section, and elevates the second diameter-changing section above the valve and expansion section, placing it after the air duct and manhole section. Because the second diameter-changing section is very close to the air duct and manhole section, even if ash blockage occurs in the second diameter-changing section during daily operation, maintenance personnel can quickly clear the blockage and troubleshoot the problem by entering the ash hopper through the manhole in the air duct and manhole section, effectively solving the problems of the prior art.
[0004] Based on the above applications, the existing grate furnace bottom ash hopper still has the following problems:
[0005] The inner wall of the grate furnace bottom ash hopper easily adsorbs a large amount of dust. This dust accumulation on the inner wall of the ash hopper can lead to persistent dust buildup and difficulty in cleaning it. Therefore, we propose a new grate furnace bottom ash hopper design for incinerators. Summary of the Invention
[0006] The purpose of this utility model is to provide an ash hopper at the bottom of an incinerator grate furnace to solve the problems mentioned in the background art.
[0007] To achieve the above objectives, this utility model provides the following technical solution:
[0008] An ash hopper at the bottom of an incinerator grate furnace, comprising:
[0009] The three sections are arranged from top to bottom as follows: first section, second section, duct section, manhole, expansion section section, and third section. An auxiliary dust collection component is installed inside the third section.
[0010] The outlet of the third section is connected to the inlet of the ash conveyor;
[0011] The auxiliary dust collection component includes:
[0012] A rotating shaft is installed inside the third section area. The input shaft of the rotating shaft is connected to a drive motor. The drive motor is installed on the third section area by bolts. An impeller is fixed to the rotating shaft.
[0013] Preferably, the inlet of the first section is installed at the bottom of the incinerator grate furnace to receive ash and slag falling from the bottom of the incinerator grate furnace.
[0014] Preferably, eccentric wheels are fixed on both sides of the rotating shaft.
[0015] Preferably, a lever is installed below the eccentric wheel, and the lever is vertically inserted through a positioning shaft.
[0016] Preferably, the lever is movably connected inside the third segment region via a positioning shaft.
[0017] Preferably, one end of the lever is in contact with the eccentric wheel, and the other end is connected to a ball block via a rope.
[0018] Compared with the prior art, the beneficial effects of this utility model are:
[0019] The drive motor in this invention drives the rotating shaft to rotate, which in turn drives the impeller to rotate. The impeller can accelerate the falling of ash and slag, and can quickly discharge the ash and slag into the interior of the ash conveyor.
[0020] The drive motor in this invention drives the eccentric wheel to rotate via a rotating shaft. The eccentric wheel pushes the lever to rotate back and forth around the positioning shaft. The lever pulls the ball block to move back and forth. The ball block will repeatedly collide with the inner wall of the ash hopper at the bottom of the incinerator grate furnace, which can dislodge the ash and slag adsorbed on the inner wall of the ash hopper at the bottom of the incinerator grate furnace. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the structure of this utility model;
[0022] Figure 2 This utility model Figure 1 A magnified view of the structure at point A in the middle;
[0023] Figure 3 This is a schematic diagram of the distribution structure of the impeller and eccentric wheel of this utility model.
[0024] In the picture:
[0025] 1. First section area; 2. Second section area; 3. Duct area; 4. Manhole; 5. Expansion section area; 6. Third section area; 7. Ash conveyor;
[0026] 8. Auxiliary dust collection components; 801. Rotating shaft; 802. Drive motor; 803. Impeller; 804. Eccentric wheel; 805. Lever; 806. Positioning shaft; 807. Ball block;
[0027] 7. Ash conveyor. Detailed Implementation
[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example
[0029] Please see Figure 1-3 An ash hopper at the bottom of an incinerator grate furnace, comprising:
[0030] The three sections are arranged sequentially from top to bottom: the first section 1, the second section 2, the duct section 3, the manhole 4, the expansion section section 5, and the third section 6. The inlet of the first section 1 is installed at the bottom of the incinerator grate furnace to receive the ash and slag falling from the bottom of the incinerator grate furnace. The outlet of the third section 6 is connected to the inlet of the ash conveyor 7. An auxiliary ash dropping component 8 is installed inside the third section 6. Example
[0031] Based on the above embodiment 1, an auxiliary dust collection component 8 is further disclosed.
[0032] like Figure 2 and Figure 3 As shown, the auxiliary dust collection component 8 includes:
[0033] A rotating shaft 801 is installed inside the third section area 6. The input shaft of the rotating shaft 801 is connected to a drive motor 802. The drive motor 802 is installed on the third section area 6 by bolts. An impeller 803 is fixed to the rotating shaft 801.
[0034] In the above technical solution, the drive motor 802 drives the rotating shaft 801 to rotate, the rotating shaft 801 drives the impeller 803 to rotate, the impeller 803 can accelerate the falling of ash and slag, and can quickly discharge the ash and slag into the interior of the ash conveyor 7.
[0035] like Figure 2 As shown, eccentric wheels 804 are fixed on both sides of the rotating shaft 801. A lever 805 is installed below the eccentric wheel 804. A positioning shaft 806 is vertically inserted through the lever 805. The lever 805 is movably connected to the inside of the third section area 6 through the positioning shaft 806. One end of the lever 805 is in contact with the eccentric wheel 804, and the other end is connected to a ball block 807 through a rope.
[0036] In the above technical solution, the drive motor 802 drives the eccentric wheel 804 to rotate through the rotating shaft 801. The eccentric wheel 804 will push the lever 805 to rotate back and forth around the positioning shaft 806. The lever 805 will pull the ball block 807 to move back and forth. The ball block 807 will reciprocate to collide with the inner wall of the ash hopper at the bottom of the incinerator grate furnace, which can dislodge the ash adsorbed on the inner wall of the ash hopper at the bottom of the incinerator grate furnace.
[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An ash hopper at the bottom of an incinerator grate furnace, characterized in that, include: The three sections are arranged from top to bottom as follows: first section (1), second section (2), duct section (3), manhole (4), expansion section section (5) and third section (6). An auxiliary dust collection component (8) is installed inside the third section (6). The outlet of the third section (6) is connected to the inlet of the ash conveyor (7); The auxiliary dust collection component (8) includes: A rotating shaft (801) is installed inside the third section (6). The input shaft of the rotating shaft (801) is connected to a drive motor (802). The drive motor (802) is installed on the third section (6) by bolts. An impeller (803) is fixed on the rotating shaft (801). Both sides of the rotating shaft (801) are fixed with eccentric wheels (804). A lever (805) is installed below the eccentric wheel (804). The lever (805) is vertically inserted through a positioning shaft (806). The lever (805) is movably connected to the inside of the third section (6) through the positioning shaft (806). One end of the lever (805) is in contact with the eccentric wheel (804), and the other end is connected to a ball block (807) through a rope.
2. The ash hopper at the bottom of an incinerator grate furnace according to claim 1, characterized in that, The inlet of the first section (1) is installed at the bottom of the incinerator grate furnace to receive the ash and slag falling from the bottom of the incinerator grate furnace.