Top loading and tamping dual-purpose coke oven

Abstract

The utility model relates to the field of coke ovens, and discloses a top-loading and tamping dual-purpose coke oven which comprises an oven body, an oven top is arranged at the top of the oven body, a combustion chamber is arranged on the inner wall of the oven body, a carbonization chamber is arranged on one side of the combustion chamber, a coal discharge port is arranged at the top of the oven top, and a heat storage chamber is arranged at the bottom of the combustion chamber. According to the top-loading and tamping dual-purpose coke oven, both top-loading and tamping production operation can meet the requirement that coke cakes in the carbonization chamber are matured up and down at the same time, the graphite generation amount in the space of the oven top can be reduced, the advantages of top-loading and tamping coke oven production processes are integrated, and the coke oven has the advantages of low energy consumption, low cost and the like. The production process of coke can be adjusted in time according to market change requirements, rapid switching of the two processes is achieved, and the production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of coke oven technology, specifically a top-loading and tamping coke oven. Background Technology

[0002] A coke oven is a specialized piece of equipment used for coal conversion to produce coke, and it is the main thermal equipment in coking. A modern coke oven typically consists of a carbonization chamber, combustion chamber, regenerator chamber, inclined flue, roof, foundation, and flue. The carbonization chamber is where the coal is heated and transformed into coke in the absence of air, while the combustion chamber is used to burn coal gas to transfer heat to the carbonization chamber. The regenerator chamber uses high-temperature waste gas to preheat the coal gas and air, and the inclined flue section connects the regenerator chamber and the combustion chamber.

[0003] Modern coke ovens are classified into top-charging coke ovens and tamping coke ovens according to their coal charging methods. In top-charging coke ovens, the coal is fed into the carbonization chamber via a top-charging coal car for coking. In tamping coke ovens, the coal is tamped into cakes by a tamping machine and then pushed into the carbonization chamber via a side-tamping coal car for coking. However, due to the extensive development model, my country's coking industry remains underdeveloped, characterized by low thermal conversion rates, resource waste, non-compliance with environmental standards, and inadequate safety production facilities. Therefore, a dual-purpose top-charging and tamping coke oven is proposed to address the current problem of not being able to choose the coking method according to demand. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a top-loading and tamping dual-purpose coke oven, which solves the aforementioned problems.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a top-loading and tamping dual-purpose coke oven, comprising a furnace body, a furnace top being provided at the top of the furnace body, a combustion chamber being provided on the inner wall of the furnace body, a carbonization chamber being provided on one side of the combustion chamber, a coal inlet being provided at the top of the furnace top, a heat storage chamber being provided at the bottom of the combustion chamber, the combustion chamber and the heat storage chamber being connected by an inclined chute, and a coal feeding mechanism being provided at the top of the furnace top.

[0008] Preferably, the carbonization chamber inside the furnace body is a wide carbonization chamber with very thin furnace walls.

[0009] Preferably, the combustion chamber is divided into three sections.

[0010] Preferably, the combustion chamber is provided with an adjustable lower section, which is constructed using compartments and grate bricks.

[0011] Preferably, the sealing wall of the heat storage chamber and the furnace head part of the inclined channel are made of composite silicate thermal insulation material with good heat insulation effect and not easy to crack at high temperature.

[0012] Preferably, the coal feeding mechanism includes a coal feeding hopper disposed at the top of the furnace top, the top of the furnace top being symmetrically and fixedly connected to a fixed shell, a limiting plate being slidably disposed in the inner cavity of the fixed shell, the limiting plate being fixedly connected to the coal feeding hopper, and a slot being opened on the inner wall of the coal feeding hopper.

[0013] Preferably, a connecting arm is fixedly connected to one end of the coal feed hopper, a connecting plate is fixedly connected to one end of the connecting arm, and a hydraulic telescopic rod is fixedly connected to one end of the connecting plate. The hydraulic telescopic rod is fixedly connected to the furnace body.

[0014] (III) Beneficial Effects

[0015] 1. This dual-purpose top-loading and tamping coke oven can ensure that the coke cake matures simultaneously from both the top and bottom of the carbonization chamber, regardless of whether it is top-loading or tamping production operation. It can also reduce the amount of graphite generated in the top space of the oven. Combining the advantages of both top-loading and tamping coke oven production processes, the coke production process can be adjusted in a timely manner according to market changes and needs, and the two processes can be quickly switched to improve production efficiency.

[0016] 2. This top-loading and tamping coke oven allows coal to be fed into the coal inlet hopper. When coal needs to be added to the carbonization chamber for coking, the connecting arm moves back and forth via a hydraulic telescopic rod and connecting plate. Under the action of the limiting plate inside the fixed shell, the coal is fed through the slot and into the carbonization chamber from the coal outlet. When no coal needs to be added, the coal outlet is sealed by the coal inlet hopper to ensure the coking effect and improve the practicality of this top-loading and tamping coke oven. Attached Figure Description

[0017] Figure 1 This is a structural diagram of the present utility model;

[0018] Figure 2 This is a cross-sectional view of the structure of this utility model;

[0019] Figure 3 The structure of this utility model Figure 2 Sectional view at point AA.

[0020] In the diagram: 1. Furnace body; 2. Furnace top; 3. Combustion chamber; 4. Carbonization chamber; 5. Coal inlet; 6. Regenerator; 7. Inclined chute; 8. Adjustable lower section; 9. Coal feeding mechanism; 901. Fixed shell; 902. Limiting plate; 903. Connecting arm; 904. Connecting plate; 905. Hydraulic telescopic rod; 906. Groove; 907. Coal feeding hopper. Detailed Implementation

[0021] 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.

[0022] Example: Please refer to Figure 1-3 A top-loading and tamping coke oven includes a furnace body 1, a furnace top 2 at the top of the furnace body 1, a combustion chamber 3 on the inner wall of the furnace body 1, a carbonization chamber 4 on one side of the combustion chamber 3, a coal inlet 5 at the top of the furnace top 2, a heat storage chamber 6 at the bottom of the combustion chamber 3, the combustion chamber 3 and the heat storage chamber 6 being connected by an inclined chute 7, and a coal feeding mechanism 9 at the top of the furnace top 2.

[0023] Furthermore, the carbonization chamber 4 inside the furnace body 1 is a wide carbonization chamber with very thin furnace walls, which prolongs the coking time, increases the shrinkage value of the coke cake, and increases the gap between the coke cake and the furnace wall of the carbonization chamber, making it easier to push the coke.

[0024] Furthermore, the combustion chamber is divided into three sections. This segmented heating structure reduces the intensity of gas combustion and decreases the formation of nitrogen oxides. Simultaneously, increasing the waste gas recirculation volume and installing high-pressure coke oven gas lamps ensures uniform heating in the carbonization chamber, further reducing nitrogen oxide production and air pollution.

[0025] Furthermore, the combustion chamber 3 is equipped with an adjustable lower section 8, which employs a segmented and grate brick design. This adjustable structure allows for simpler and more accurate adjustments, ensuring a more rational distribution of airflow within the regenerator. Additionally, the downward-adjustable structure minimizes the waste gas temperature difference above the grate bricks, resulting in high thermal efficiency and significant energy savings in the coke oven regenerator.

[0026] Furthermore, the sealing wall of the heat storage chamber 6 and the furnace head part of the inclined flue 7 are made of composite silicate thermal insulation material with good heat insulation effect and not easy to crack at high temperature, which effectively increases the airtightness of the sealing wall of the heat storage chamber 6, reduces heat loss, lowers the temperature of the basement and flue corridor, and increases the temperature of the side flue.

[0027] Furthermore, the coal feeding mechanism 9 includes a coal feeding hopper 907 set on the top of the furnace top 2. The top of the furnace top 2 is symmetrically and fixedly connected to a fixed shell 901. A limit plate 902 is slidably set in the inner cavity of the fixed shell 901. The limit plate 902 is fixedly connected to the coal feeding hopper 907. A slot 906 is opened on the inner wall of the coal feeding hopper 907.

[0028] Furthermore, a connecting arm 903 is fixedly connected to one end of the coal feed hopper 907, a connecting plate 904 is fixedly connected to one end of the connecting arm 903, and a hydraulic telescopic rod 905 is fixedly connected to one end of the connecting plate 904. The hydraulic telescopic rod 905 is fixedly connected to the furnace body 1. Coal to be coked is placed into the coal feed hopper 907. When coal needs to be added to the carbonization chamber 4 for coking, the connecting arm 903 is moved back and forth by the hydraulic telescopic rod 905 in conjunction with the connecting plate 904. Then, under the action of the limiting plate 902 in the fixed shell 901, the coal is guided through the slot 906 and into the carbonization chamber 4 from the coal outlet 5. When no coal needs to be added, the coal feed hopper 907 is used to seal the coal outlet 5 to ensure the coal coking effect and improve the practicality of this top-loading and tamping dual-purpose coke oven.

[0029] Working Principle: When using this top-loading and tamping coke oven, during top-loading coke production: coal is received from the top-loading coal discharge port and transported to the coke oven carbonization chamber 4 in an air-isolated high-temperature dry distillation process via the top-loading coal charging car. During coal charging, the smoke and dust removal vehicles are parked at both ends of the oven top. During tamping coke production: the top-loading coal discharge port is closed, and the tamping coal discharge port is opened. The raw coal is transported to the tamping coal tower via the coal conveyor belt, tamped into coal cakes by the tamping machine, and then transported to the coke oven carbonization chamber 4 in an air-isolated high-temperature dry distillation process via the tamping coal charging car. The smoke and dust removal vehicles work in the oven top area, collecting and burning the smoke and dust generated by side-loading coal and sending it to the ground station. During this period, the top-loading coal charging car is parked at the intermediate coal tower. The system combines top-loading and tamping processes. The advantages of the two coke oven production processes are that the coke production process can be adjusted in a timely manner according to market changes and demands, enabling rapid switching between the two processes and improving production efficiency. Coal to be coked is placed into the coal feed hopper 907. When coal needs to be added to the carbonization chamber 4 for coking, the hydraulic telescopic rod 905, in conjunction with the connecting plate 904, drives the connecting arm 903 to move back and forth. Then, under the action of the limiting plate 902 in the fixed shell 901, the coal passes through the slot 906 and is introduced into the carbonization chamber 4 from the coal outlet 5. When no coal needs to be added, the coal feed hopper 907 seals the coal outlet 5 to ensure the coal coking effect and improve the practicality of this top-loading and tamping dual-purpose coke oven.

[0030] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] 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. A top charging and ramming dual-purpose coke oven comprising an oven body (1), characterized in that: The furnace body (1) is provided with a furnace top (2) at the top, a combustion chamber (3) is provided on the inner wall of the furnace body (1), a carbonization chamber (4) is provided on one side of the combustion chamber (3), a coal inlet (5) is provided at the top of the furnace top (2), a heat storage chamber (6) is provided at the bottom of the combustion chamber (3), the combustion chamber (3) and the heat storage chamber (6) are connected by an inclined passage (7), and a coal feeding mechanism (9) is provided at the top of the furnace top (2).

2. A top charging and ramming dual-purpose coke oven according to claim 1, characterized in that: The carbonization chamber (4) inside the furnace body (1) is a wide carbonization chamber with very thin furnace walls.

3. A top charging and ramming dual-purpose coke oven according to claim 1, characterized in that: The combustion chamber (3) is divided into three sections.

4. A top-loading and tamping dual-purpose coke oven according to claim 1, characterized in that: The combustion chamber (3) is provided with an adjustable lower part (8), which is made of compartments and grate bricks.

5. A top charging and ramming dual-purpose coke oven according to claim 1, characterized in that: The sealing wall of the heat storage chamber (6) and the furnace head of the inclined channel (7) are made of composite silicate thermal insulation material with good thermal insulation effect and not easy to crack at high temperature.

6. A top charging and ramming dual-purpose coke oven according to claim 1, characterized in that: The coal feeding mechanism (9) includes a coal feeding hopper (907) set on the top of the furnace top (2). The top of the furnace top (2) is symmetrically and fixedly connected to a fixed shell (901). A limiting plate (902) is slidably arranged in the inner cavity of the fixed shell (901). The limiting plate (902) is fixedly connected to the coal feeding hopper (907). The inner wall of the coal feeding hopper (907) is provided with a slot (906).

7. A top charging and ramming dual-purpose coke oven according to claim 6, characterized in that: One end of the coal feed hopper (907) is fixedly connected to a connecting arm (903), one end of the connecting arm (903) is fixedly connected to a connecting plate (904), one end of the connecting plate (904) is fixedly connected to a hydraulic telescopic rod (905), and the hydraulic telescopic rod (905) is fixedly connected to the furnace body (1).

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