Novel dry quenching oven device
By designing a new dry quenching oven device and using the negative pressure of the circulation system to transfer heat, the problem of dry quenching coke cannot be put into production on schedule due to the lack of steam available to independent coking enterprises, low-cost pickling and warm air drying are achieved, and the efficiency of inlet and discharge of furnace bodies and the convenience of ash discharge are improved.
Patent Information
- Application Number
- CN202422176748.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-05
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-09-05
AI Technical Summary
Independent coking enterprises have no steam available in the early stage, resulting in dry quenching being unable to be put into production on schedule. The traditional solution is high and uncontrollable in funding and time costs.
A new type of dry quenching oven device is designed, and the heat of the combustion medium in the hot air furnace is brought into the circulation system using the negative pressure of the circulation system. Through secondary dust removal, circulation fan and sub-economic saver, it enters the dry quench tank and primary dust removal and heat exchange with the material to replace steam heating, and realizes pickling and warm air drying.
It has achieved smooth completion of dry quenching pyroacid washing and warm air drying under steam-free conditions, reducing capital and time costs, and improving the efficiency of furnace inlet and discharge and convenience of ash discharge.
Smart Images
Figure CN223060912U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of coke dry quenching ovens, and more specifically, to a new type of coke dry quenching oven device. Background Art
[0002] Currently, there are many newly built independent coking plants. Under the general environment of the country promoting the transformation, quality improvement and upgrading of the entire coke dry quenching in the coking industry, some provinces have clearly required that coking enterprises within the province fully implement dry coke quenching. As is well known, coke dry quenching requires steam for boiler pickling and refractory warm air drying of the coke dry quenching system during commissioning. The traditional solution is to use the steam medium in the original plant area or purchase a boiler separately to produce steam by burning coke oven gas or natural gas for coke dry quenching pickling and warm air drying. The traditional method has high capital investment and time management costs and is overall uncontrollable.
[0003] Therefore, we have made improvements and proposed a new type of coke dry quenching oven device. Content of the Utility Model
[0004] In order to solve the problem that there is no steam available in the early stage of independent coking and the smooth commissioning of coke dry quenching cannot be guaranteed on schedule, the utility model provides a new type of coke dry quenching oven device.
[0005] The utility model is implemented as follows:
[0006] A new type of coke dry quenching oven device includes a coke dry quenching furnace. One end of the coke dry quenching furnace is provided with a primary dust removal mechanism. One end of the primary dust removal mechanism is provided with a boiler. The bottom end of the boiler is connected with a first elbow. One end of the elbow is communicated with a secondary dust removal mechanism. One side of the secondary dust removal mechanism is communicated with a second elbow. One end of the second elbow is connected with a circulation fan. The output end of the circulation fan is communicated with a secondary economizer. One end of the secondary economizer is communicated with one end of the coke dry quenching furnace. The outer wall of the first elbow is communicated with a hot blast stove. A burner is installed at the bottom end of the hot blast stove. The bottom end of the burner is communicated with a gas pipeline. The gas pipeline extends into the interior of the hot blast stove.
[0007] Further, the coke dry quenching furnace includes a furnace body, a main pipeline, a secondary pipeline and an ash discharge valve. One side of the outer wall of the furnace body is communicated with the main pipeline. The outer wall of the main pipeline is communicated with the secondary pipeline.
[0008] The beneficial effect of adopting the above further scheme is that by the connection and use of the main pipeline and the secondary pipeline, the feeding and discharging efficiency of the furnace body is effectively improved.
[0009] Further, the bottom end of the furnace body is communicated with the ash discharge valve. The ash discharge valve is set as a manual valve.
[0010] The beneficial effect of adopting the above further scheme is that through the connection of the ash discharge valve, it is convenient to discharge the residues inside the furnace body.
[0011] Furthermore, the primary dust removal mechanism includes a horizontal pipe, a vertical pipe, a reversing valve, and an exhaust pipe, and the bottom end of the horizontal pipe is connected to the vertical pipe.
[0012] The beneficial effect of adopting the above further solution is that through the connection of the horizontal pipe, the primary dust removal mechanism can be connected between the dry quenching furnace and the boiler, and in cooperation with the connection of the vertical pipe, it can connect the horizontal pipe to other directions.
[0013] Furthermore, a reversing valve is installed at the bottom end of the vertical pipe, and the vertical pipe is respectively connected to the exhaust pipe through the reversing valve.
[0014] The beneficial effect of adopting the above further solution is that through the cooperation of the reversing valve and the exhaust pipe, the inside of the vertical pipe can be opened.
[0015] Furthermore, the two exhaust pipes are arranged vertically and are parallel to each other.
[0016] Furthermore, the auxiliary economizer includes an auxiliary body, a discharge pipe, and a return pipe, and the discharge pipe and the return pipe are respectively connected to both sides of the top end of the auxiliary body.
[0017] The beneficial effect of adopting the above further solution is that through the connection of the discharge pipe, it is convenient to discharge the waste gas inside the auxiliary body 4.
[0018] Furthermore, one end of the return pipe is connected to one side of the top end of the furnace body.
[0019] The beneficial effect of adopting the above further solution is that through the connection of the return pipe, part of the air flow can be returned to the inside of the furnace body.
[0020] The beneficial effect of the present utility model is that the heat of the combustion medium in the hot blast stove is brought into the circulation system by using the negative pressure of the circulation system, and through secondary dust removal, a circulation fan, and an auxiliary economizer, it enters the dry quenching tank and exchanges heat with the refractory in the primary dust removal, evaporates the moisture generated during the masonry process, replaces the original method of steam entering the boiler for heating, and during pickling, heats the demineralized water in the auxiliary economizer and the boiler tube bundle by the heat of the hot blast stove to reach the required temperature for pickling, and successfully completes pickling. Description of the Drawings
[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the embodiments. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.
[0022] Figure 1 The connection block diagram of a new coke dry quenching oven heating device provided by the present utility model;
[0023] Figure 2 The schematic diagram of the coke dry quenching oven of a new coke dry quenching oven heating device provided by the present utility model;
[0024] Figure 3 The schematic diagram of the primary dust removal mechanism of a new coke dry quenching oven heating device provided by the present utility model;
[0025] Figure 4 The schematic diagram of the auxiliary economizer of a new coke dry quenching oven heating device provided by the present utility model.
[0026] In the figure: 1. Coke dry quenching oven; 101. Furnace body; 102. Main pipeline; 103. Auxiliary pipeline; 104. Ash discharge valve; 2. Primary dust removal mechanism; 201. Horizontal pipe; 202. Vertical pipe; 203. Reversing valve; 204. Exhaust pipe; 3. Boiler; 4. Auxiliary economizer; 401. Auxiliary device body; 402. Discharge pipe; 403. Return pipe; 5. Circulation fan; 6. Secondary dust removal mechanism; 7. Hot blast stove; 8. Burner; 9. Gas pipeline. Specific implementation manners
[0027] To make the purpose, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0028] Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the present utility model claimed, but merely represents the selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0029] Embodiment 1
[0030] Please refer to Figures 1-4, the present utility model provides a technical solution: a new coke dry quenching oven device, including a coke dry quenching furnace 1, one end of the coke dry quenching furnace 1 is provided with a primary dust removal mechanism 2, one end of the primary dust removal mechanism 2 is provided with a boiler 3, the bottom end of the boiler 3 is connected with a first elbow pipe, one end of the elbow pipe is communicated with a secondary dust removal mechanism 6, one side of the secondary dust removal mechanism 6 is communicated with a second elbow pipe, one end of the second elbow pipe is connected with a circulation fan 5, the output end of the circulation fan 5 is communicated with a secondary economizer 4, one end of the secondary economizer 4 is communicated with one end of the coke dry quenching furnace 1, the outer wall of the first elbow pipe is communicated with a hot blast stove 7, the bottom end of the hot blast stove 7 is installed with a burner 8, the bottom end of the burner 8 is communicated with a gas pipeline 9, and the gas pipeline 9 extends into the interior of the hot blast stove 7.
[0031] Embodiment 2
[0032] Please refer to Figures 1-4 , as an embodiment of the present utility model, further, the coke dry quenching furnace 1 includes a furnace body 101, a main pipeline 102, a secondary pipeline 103 and an ash discharge valve 104. One side of the outer wall of the furnace body 101 is communicated with the main pipeline 102, and the outer wall of the main pipeline 102 is communicated with the secondary pipeline 103. By using the connection between the main pipeline 102 and the secondary pipeline 103, the feeding and discharging efficiency of the furnace body 101 is effectively improved. The bottom end of the furnace body 101 is communicated with the ash discharge valve 104, and the ash discharge valve 104 is set as a manual valve. Through the connection of the ash discharge valve 104, it is convenient to discharge the residue inside the furnace body 101. The primary dust removal mechanism 2 includes a horizontal pipe 201, a vertical pipe 202, a reversing valve 203 and an exhaust pipe 204. The bottom end of the horizontal pipe 201 is communicated with the vertical pipe 202. Through the connection of the horizontal pipe 201, the primary dust removal mechanism 2 can be connected between the coke dry quenching furnace 1 and the boiler 3, and in cooperation with the connection of the vertical pipe 202, it can connect the horizontal pipe 201 to other directions.
[0033] Embodiment 3
[0034] Please refer to Figures 1-4 , as an embodiment of the present utility model, further, the bottom end of the vertical pipe 202 is installed with a reversing valve 203, and the vertical pipe 202 is respectively communicated with an exhaust pipe 204 through the reversing valve 203. Through the cooperation of the reversing valve 203 and the exhaust pipe 204, the interior of the vertical pipe 202 can be opened. The two exhaust pipes 204 are arranged vertically and are parallel to each other. The secondary economizer 4 includes a secondary device body 401, a discharge pipe 402 and a return pipe 403. The two sides of the top end of the secondary device body 401 are respectively communicated with the discharge pipe 402 and the return pipe 403. Through the connection of the discharge pipe 402, it is convenient to discharge the waste gas inside the secondary device body 401. One end of the return pipe 403 is communicated with one side of the top end of the furnace body 101. Through the connection of the return pipe 403, part of the air flow can be returned to the interior of the furnace body 101.
[0035] Specifically, the working principle of the new coke dry quenching oven device: When in use, first, check whether the structure of the device is intact. After ensuring the integrity of the structure, then put it into use. Among them, during pickling and the early stage of oven drying, a hot blast stove is built on-site at the empty ground on both sides of the circulation pipeline at the outlet of the boiler 3 and the inlet of the secondary dust removal mechanism 6 by using the remaining refractory materials in the coke oven or coke dry quenching furnace 1. A connection port for the hot blast stove is reserved on the original total oven drying gas pipeline, and a valve is added. During pickling and oven drying, adjust the valve opening or the number of burners 8 according to the required temperature. After the hot blast stove is ignited, during pickling, the water in the boiler and the secondary economizer 2 is gradually raised to the pickling temperature through the secondary economizer 2, the boiler evaporator, and the circulation fan 5, and the fire is extinguished after maintaining the temperature to complete pickling, rinsing, and passivation. After the boiler pickling is completed, all pipelines are restored. After meeting the oven drying conditions, the hot blast stove is ignited again, and the number and opening of the hot blast stove burners are controlled according to the temperature rise curve until 150°C required for warm air drying. Moreover, during the initial oven drying of coke dry quenching in independent coking, there is no steam heat source available, and it cannot meet the requirements of pickling and warm air drying for coke dry quenching. The heat generated by burning natural gas (LNG) or coke oven gas (COG) in the hot blast stove is transferred to the circulation system to transfer heat to the entire circulation system to meet the needs of pickling and warm air drying.
[0036] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, various modifications and changes can be made to the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.
Claims
1. A new type of coke dry quenching oven device, including a coke dry quenching furnace (1), characterized in that, One end of the coke dry quenching furnace (1) is provided with a primary dust removal mechanism (2). One end of the primary dust removal mechanism (2) is provided with a boiler (3). The bottom end of the boiler (3) is connected with a first elbow pipe. One end of the elbow pipe communicates with a secondary dust removal mechanism (6). One side of the secondary dust removal mechanism (6) communicates with a second elbow pipe. One end of the second elbow pipe is connected with a circulation fan (5). The output end of the circulation fan (5) communicates with a secondary economizer (4). One end of the secondary economizer (4) communicates with one end of the coke dry quenching furnace (1). The outer wall of the first elbow pipe communicates with a hot blast stove (7). A burner (8) is installed at the bottom end of the hot blast stove (7). The bottom end of the burner (8) communicates with a gas pipeline (9). The gas pipeline (9) extends into the interior of the hot blast stove (7).
2. The novel coke dry quenching oven device according to claim 1, wherein The coke dry quenching furnace (1) includes a furnace body (101), a main pipeline (102), a secondary pipeline (103) and an ash discharge valve (104). One side of the outer wall of the furnace body (101) communicates with the main pipeline (102). The outer wall of the main pipeline (102) communicates with the secondary pipeline (103).
3. The novel coke dry quenching oven device according to claim 2, characterized in that, The bottom end of the furnace body (101) communicates with the ash discharge valve (104). The ash discharge valve (104) is set as a manual valve.
4. The novel coke dry quenching oven device according to claim 1, characterized in that, The primary dust removal mechanism (2) includes a horizontal pipe (201), a vertical pipe (202), a changeover valve (203) and an exhaust pipe (204). The bottom end of the horizontal pipe (201) communicates with the vertical pipe (202).
5. The novel coke dry quenching oven device according to claim 4, characterized in that, The changeover valve (203) is installed at the bottom end of the vertical pipe (202). The vertical pipe (202) communicates with the exhaust pipes (204) respectively through the changeover valve (203).
6. The novel coke dry quenching oven device according to claim 5, characterized in that, The two exhaust pipes (204) are arranged vertically and are parallel to each other.
7. The novel coke dry quenching oven device according to claim 2, characterized in that, The secondary economizer (4) includes a secondary body (401), a discharge pipe (402) and a return pipe (403). The two sides of the top end of the secondary body (401) communicate with the discharge pipe (402) and the return pipe (403) respectively.
8. The novel coke dry quenching oven device according to claim 7, characterized in that, One end of the return pipe (403) communicates with one side of the top end of the furnace body (101).