Automatic pusher of semi-coke hot water boiler
By using a split combustion zone and discharge port design, combined with a pusher plate and eccentric rod drive and ash collection tray to collect carbon slag, the mechanical failure and environmental mess caused by ash accumulation in existing boiler pushers are solved, and the boiler is able to operate efficiently and cleanly.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WEIFANG LUCAI ENVIRONMENTAL PROTECTION TECH CO LTD
- Filing Date
- 2025-07-29
- Publication Date
- 2026-04-21
AI Technical Summary
During long-term use, the existing semi-coke boiler pusher suffers from the deformation of the feed motor bearings due to the falling of char powder and slag. Furthermore, the integrated design of the combustion zone and the pusher zone is unreasonable, resulting in a dirty and messy boiler operating environment.
The design incorporates a separate combustion zone and a discharge port. A pusher plate is connected to a pusher motor and driven by an eccentric rod. The pusher plate moves back and forth, and the ash collection tray collects the charcoal slag. The pusher motor is installed horizontally to prevent ash accumulation below the discharge port.
It improves the durability of the feeder, keeps the boiler environment clean, extends its service life, and avoids mechanical failures caused by ash accumulation.
Smart Images

Figure CN224150911U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of boiler combustion feeding technology, specifically an automatic feeder for a semi-coke hot water boiler. Background Technology
[0002] In existing semi-coke boilers, during long-term use, the coal dust and slag falling from the pusher during reciprocating motion accumulate on the feeding motor frame, causing deformation of the feeding motor bearings and preventing feeding. Furthermore, the randomly falling coal dust and slag make the boiler's operating environment dirty and messy. In addition, the integrated design of the combustion zone and the pushing zone, along with the large feed inlet of the furnace body, results in an unreasonable structural design. Utility Model Content
[0003] To address the shortcomings of the existing technology, this utility model provides an automatic feeder for semi-coke hot water boilers with a low failure rate.
[0004] The technical solution adopted by this utility model to solve its technical problem is:
[0005] An automatic feeder for a semi-coke hot water boiler includes a feeding port, a feeder plate slidably disposed at the bottom of the feeding port, the front end of the feeder plate being located in the combustion zone, and a feeder motor being connected to the rear end of the feeder plate, the feeder motor driving the feeder plate to reciprocate.
[0006] Furthermore, a limit frame is provided at the rear end of the pusher plate, and an eccentric rod is connected to the output end of the pusher motor. A push rod that extends into the limit frame is provided at the end of the eccentric rod.
[0007] Furthermore, a reinforcing plate is provided within the limiting frame.
[0008] Furthermore, a motor mounting plate is provided at the rear end of the material discharge port, and the pusher motor is fixed on the motor mounting plate.
[0009] Furthermore, a ash receiving tray is provided below the rear end of the material discharge port.
[0010] Furthermore, the ash receiving tray includes an inclined plate extending obliquely forward.
[0011] Furthermore, the burner includes a combustion plate and an ash receiving chamber located below the combustion plate, with an ash cleaning port provided below the ash receiving chamber and a sealing plate provided on the ash cleaning port.
[0012] Furthermore, the ash receiving chamber is connected to an air intake pipe, and an oxygen-supporting pipe located above the combustion zone is connected to the ash receiving chamber.
[0013] The beneficial effects of this utility model are:
[0014] Its pusher plate and pusher motor are connected by a limit frame, and the eccentric frame is pushed by an eccentric rod. The structure is durable, and the pusher motor is installed horizontally to avoid it being installed below the discharge port and getting covered with carbon slag, which would affect its service life. An ash collection tray is designed so that the ash falling behind the pusher plate falls into the ash collection tray, keeping the environment clean. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This is a cross-sectional view of the present invention;
[0017] Figure 3 This is a schematic diagram showing the separation of the combustion zone and the material discharge port in this utility model;
[0018] Figure 4 This is a schematic diagram of the limiting frame and the pusher motor structure of this utility model;
[0019] Figure 5 This is a schematic diagram of the pusher plate structure of this utility model;
[0020] In the figure, there are: material discharge port 1, sealing plate 101, motor mounting plate 102, reinforcing plate I 1021, reinforcing plate II 1022, fixing plate 103, pushing plate 2, limiting frame 201, reinforcing plate 2011, reinforcing rib 2012, combustion zone 3, combustion plate 301, ash receiving chamber 302, ash cleaning port 303, sealing plate 304, air inlet pipe 305, oxygen-aiding pipe 306, pushing motor 4, eccentric rod 401, push rod 402, ash receiving tray 5, and inclined plate 501. Detailed Implementation
[0021] To better understand this utility model, the following description is in conjunction with the appendix. Figure 1-5 The embodiments of this utility model will be explained in detail below.
[0022] This utility model relates to an automatic feeder for a semi-coke hot water boiler, comprising a feed inlet 1, above which is a feed hopper. Semi-coke particles fall from the feed hopper into the feed inlet and then onto a feeder plate 2. The feed inlet 1 is an open structure at the top and front. Specifically, as shown... Figure 2 and 3As shown, a sealing plate 101 is provided at the rear end of the material discharge port 1. A pusher plate 2 is slidably arranged at the bottom of the material discharge port 1 (the pusher plate 2 contacts the bottom plate). A gap is provided between the sealing plate 101 and the bottom plate of the material discharge port 1 for the pusher plate 2 to pass through. The pusher plate 2 is a flat plate of metal or composite material. The front end of the pusher plate 2 is located in the combustion zone 3, and the rear end of the pusher plate 2 is connected to a pusher motor 4, which drives the pusher plate 2 to reciprocate. Preferably, the combustion zone 3 and the material discharge port 1 of this utility model are designed separately, with the front end of the pusher plate 2 contacting the bottom of the combustion zone 3. Fixing plates 103 are provided on both sides of the front end of the material discharge port 1 for fixed connection with the feed inlet of the furnace body.
[0023] Regarding the structure of the sealing plate 101, this utility model preferably adopts the following... Figure 2 As shown, two stacked plates are fixedly connected by bolts. The upper end of the lower plate is fixed together with the material outlet 1 by welding or bolting, and the upper plate is fixedly connected to the lower plate by bolts.
[0024] The rear end of the pusher plate 2 is provided with a limiting frame 201, which is preferably square. The output end of the pusher motor 4 is connected to an eccentric rod 401. The end of the eccentric rod 401 is provided with a push rod 402 that extends into the limiting frame 201. When the pusher motor works, it drives the eccentric rod 401 to rotate. When the push rod 402 rotates, it drives the limiting frame 201 to move back and forth, thus realizing the back and forth movement of the pusher plate 2.
[0025] To improve the stability of the limiting frame 201 and prevent deformation after prolonged use, a reinforcing plate 2011 is provided inside the limiting frame 201. Of course, the reinforcing plate 2011 is not limited to... Figure 1 As shown, multiple lines can be set horizontally and vertically. Figure 1 In the middle, a threaded hole is provided on the outer side of the limiting frame 201, and a bolt can be passed through the threaded hole to press against the reinforcing plate 2011 to make it more secure. Of course, a support column can also be welded between the reinforcing plate 2011 and the limiting frame 201. A reinforcing rib 2012 is provided between the limiting frame 201 and the pusher plate 2.
[0026] Preferably, for the installation method of the pusher motor 4, a motor mounting plate 102 is fixedly installed at the rear end of the discharge port 1. The motor mounting plate 102 is vertical, and a reinforcing plate I 1021 and a reinforcing plate II 1022 are provided between the motor mounting plate 102 and the discharge port 1. The pusher motor 4 is horizontally fixed on the motor mounting plate 102.
[0027] The present invention further includes a dust collection tray 5 provided below the rear end of the discharge port 1. The dust collection tray 5 catches the carbon dust and slag that fall off when the pusher plate reciprocates. For better dust collection, the dust collection tray 5 includes an inclined plate 501 extending obliquely forward.
[0028] The combustion zone 3 includes a combustion plate 301 and an ash receiving cavity 302 located below the combustion plate 301. A ash cleaning port 303 is provided below the ash receiving cavity 302, and a sealing plate 304 is provided on the ash cleaning port 303. Figure 3 As shown, the sealing plate 304 is removable and slidable on the outer surface of the ash receiving chamber 302. The ash receiving chamber 302 is connected to an air inlet pipe 305, and an oxygen-supporting pipe 306 located above the combustion zone 3 is connected to the ash receiving chamber 302. Several air outlets are provided in front of the oxygen-supporting pipe 306.
[0029] When this invention is in operation, the controller, according to a set time or program, controls the pusher motor to drive the pusher plate to slowly reciprocate, thereby pushing the semi-coke granules above the pusher plate 1 into the combustion zone. Ash and slag falling from the gaps during the pusher plate's reciprocating motion fall into the ash collection tray. Combustion air enters the combustion zone through the air inlet pipe and then blows through the oxygen supply pipe to the combustion plate for combustion support.
[0030] It should be noted that although this specification describes the embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. An automatic feeder for a semi-coke hot water boiler, characterized in that: It includes a material discharge port, a pusher plate is slidably disposed at the bottom of the material discharge port, the front end of the pusher plate is located in the combustion zone, and the rear end of the pusher plate is connected to a pusher motor, which drives the pusher plate to reciprocate.
2. An automatic pusher for a hot water boiler using semi-coke according to claim 1, wherein: The rear end of the pusher plate is provided with a limit frame, and the output end of the pusher motor is connected to an eccentric rod. The end of the eccentric rod is provided with a push rod that extends into the limit frame.
3. An automatic pusher for a hot water boiler for blue water, according to claim 2, characterized in that: A reinforcing plate is provided inside the limiting frame.
4. An automatic pusher for a hot water boiler using semi-coke according to claim 1, wherein: A motor mounting plate is provided at the rear end of the material discharge port, and the pusher motor is fixed on the motor mounting plate.
5. A pusher for a hot-briquetted-metal water boiler according to any one of claims 1 to 4, characterized in that: A ash receiving tray is provided below the rear end of the material discharge port.
6. An automatic pusher for a hot water boiler for blue water, according to claim 5, characterized in that: The ash receiving tray includes an inclined plate extending diagonally forward.
7. An automatic pusher for a hot water boiler for blue water, according to claim 1, characterized in that: The combustion zone includes a combustion plate and an ash receiving chamber located below the combustion plate. An ash cleaning port is provided below the ash receiving chamber, and a sealing plate is provided on the ash cleaning port.
8. A pusher for a hot water boiler for blue water, according to claim 7, characterized in that: The ash receiving chamber is connected to an air intake pipe, and an oxygen-supporting pipe located above the combustion zone is connected to the ash receiving chamber.