CN220579188U - Coke quenching device suitable for small coke oven - Google Patents
Coke quenching device suitable for small coke oven Download PDFInfo
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- CN220579188U CN220579188U CN202322210216.8U CN202322210216U CN220579188U CN 220579188 U CN220579188 U CN 220579188U CN 202322210216 U CN202322210216 U CN 202322210216U CN 220579188 U CN220579188 U CN 220579188U
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- 239000000571 coke Substances 0.000 title claims abstract description 134
- 238000010791 quenching Methods 0.000 title claims abstract description 78
- 230000000171 quenching effect Effects 0.000 title claims abstract description 78
- 239000000498 cooling water Substances 0.000 claims abstract description 131
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 93
- 238000001816 cooling Methods 0.000 claims abstract description 61
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 57
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 46
- 239000007789 gas Substances 0.000 claims abstract description 44
- 238000007789 sealing Methods 0.000 claims description 3
- 238000004939 coking Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 7
- 230000007547 defect Effects 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- 239000003245 coal Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
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- Coke Industry (AREA)
Abstract
The utility model belongs to the technical field of coking, and relates to a coke quenching device suitable for a small coke oven, which comprises a coke quenching oven, a water cooling unit and a gas heat exchange cooling device, wherein the coke quenching oven comprises an oven body and an oven door, a cooling water circulation pipe network is arranged on the side wall of an inner cavity of the oven body, an annular water tank and a cooling water emptying port communicated with the annular water tank are arranged at the bottom of the oven body, a cooling water emptying valve is arranged at the cooling water emptying port, a nitrogen inlet and an air outlet are arranged on the oven body, the nitrogen inlet is connected with an external nitrogen channel, and a gas stop valve is arranged at the air outlet; the external nitrogen channel is connected to the nitrogen inlet through the nitrogen channel in the gas heat exchange cooling device, the water outlet of the water cooling unit is respectively connected with the cooling water inlet of the cooling water circulation pipe network and the inlet of the cooling water channel in the gas heat exchange cooling device, and the cooling water outlet of the cooling water circulation pipe network and the outlet of the cooling water channel in the gas heat exchange cooling device are both connected with the water inlet of the water cooling unit.
Description
Technical Field
The utility model belongs to the technical field of coking, and relates to a coke quenching device suitable for a small coke oven.
Background
In the small coke oven experiment process, coal is carbonized into coke at high temperature, the temperature of the coke is higher at the moment after the small coke oven experiment is finished, and the high-temperature coke needs to be cooled so as to facilitate the follow-up relevant detection of quality and the like.
In the prior art, the small coke ovens are divided into side-mounted small coke ovens, top-mounted small coke ovens and bottom-mounted small coke ovens according to the charging mode of the small coke ovens. Normally, the bottom-loading small coke oven is iron-barrel-loading coal, the side-loading small coke oven is carton-loading coal, the coke obtained through experiments cannot be sealed, coke burning loss can be generated when the coke contacts with air at high temperature, and the longer the contact time of the coke and the air at high temperature is, the more burning loss is. Therefore, wet quenching is generally adopted for the quenching mode of the bottom-mounted small coke oven and the side-mounted small coke oven. However, the contact of high-temperature coke and water in the wet quenching process can cause the sudden drop of the coke temperature to affect the coke quality, and meanwhile, the difference of the coke quality can be caused by the different water consumption, water flow and quenching operation of the coke in the wet quenching process. At present, small coke ovens installed in China and installed at the side are subjected to dry quenching, and the defects of low coke quenching rate, high coke burning loss, long coke quenching time and the like are mainly caused.
Therefore, a new coke quenching device suitable for a small coke oven based on the dry quenching principle is necessary to be provided at present so as to overcome the defects of high burning loss, long quenching time and the like of the dry quenching Jiao Zhongjiao carbon, so that the small coke oven can conveniently cool red coke by using the dry quenching, and further the coke quality is ensured.
Disclosure of Invention
In view of the above, the utility model aims to provide a coke quenching device suitable for a small coke oven, which uses nitrogen gas for quenching and is matched with a gas stop valve to prevent air from entering the coke oven so as to reduce coke burning loss, and uses circulating cooling water in the coke oven to reduce the temperature of air in the coke oven so as to reduce the coke quenching time.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the coke quenching device is characterized by comprising a coke quenching furnace, a water cooling unit and a gas heat exchange cooling device, wherein the coke quenching furnace comprises a furnace body and a furnace door, a cooling water circulation pipe network is arranged on the side wall of an inner cavity of the furnace body, an annular water tank and a cooling water emptying port communicated with the annular water tank are arranged at the bottom of the furnace body, a cooling water emptying valve is arranged at the cooling water emptying port, a nitrogen inlet and an air outlet are arranged on the furnace body, the nitrogen inlet is connected with an external nitrogen channel, and a gas stop valve is arranged at the air outlet;
the gas heat exchange cooling device is provided with a nitrogen channel and a cooling water channel for indirect heat exchange, the external nitrogen channel is connected to the nitrogen inlet through the nitrogen channel of the gas heat exchange cooling device, the water cooling unit is provided with a water outlet and a water inlet, the water outlet of the water cooling unit is respectively connected with a cooling water inlet of a cooling water circulation pipe network and an inlet of the cooling water channel in the gas heat exchange cooling device, and a cooling water outlet of the cooling water circulation pipe network and an outlet of the cooling water channel in the gas heat exchange cooling device are both connected with the water inlet of the water cooling unit so as to form a cooling water circulation loop.
Further, the coke quenching furnace is square, the furnace door is one of the side walls of the coke quenching furnace, one side of the furnace body is hinged and connected with one side of the furnace door in a sealing manner, and the cooling water circulation pipe networks are three groups and are respectively arranged on the three side walls of the inner cavity of the furnace body.
Further, fans are arranged at the top parts of the furnace door and the furnace body, so as to accelerate the air flow in the coke quenching furnace, and a pressure gauge for detecting the pressure in the inner cavity of the furnace body and a thermometer for detecting the surface temperature of coke placed in the inner cavity of the furnace body are arranged on the furnace door.
Further, the three groups of cooling water circulation pipe networks are respectively provided with respective cooling water outlets and cooling water inlets, the water outlets of the water cooling units are divided into four cooling water branches, the cooling water inlets of the three groups of cooling water circulation pipe networks and the inlets of the cooling water channels in the gas heat exchange cooling device are respectively connected, the cooling water outlets of the three groups of cooling water circulation pipe networks and the outlets of the cooling water channels in the gas heat exchange cooling device are respectively connected with the water inlets of the water cooling units, the four cooling water branches are respectively provided with flow meters, and the flow meters are correspondingly arranged at the cooling water outlets of the three groups of cooling water circulation pipe networks corresponding to the four cooling water branches and the outlet positions of the cooling water channels in the gas heat exchange cooling device.
Furthermore, a cooling water outlet main valve is arranged at the water outlet of the water cooling unit, and cooling water outlet branch valves are arranged on the four cooling water branches.
The utility model has the beneficial effects that:
1. the coke cooling is carried out on the coke quenching furnace through cooling nitrogen, and the gas stop valve is arranged on the coke quenching furnace, so that after the nitrogen is filled in the coke quenching furnace, the contact between the external air and the coke in the coke quenching furnace is immediately blocked, and the purpose of reducing the burning loss of the coke is achieved; and secondly, a cooling water circulation pipe network is arranged on the side wall of the inner cavity of the coke quenching furnace, so that the temperature in the coke quenching furnace is sufficiently reduced to reduce the coke quenching time, and the coke quenching device is particularly suitable for dry coke quenching of small coke oven experimental coke such as bottom loading, side loading and the like, solves the defects of high coke burning loss, long coke quenching time and the like, and ensures stable quality of the small coke oven coke.
2. The outlet and the inlet of the cooling water circulation pipe network are respectively provided with a flowmeter so as to compare the water flow of the outlet and the inlet of the cooling water circulation pipe network, thereby being convenient for judging whether the cooling water circulation pipe network leaks or not, and the bottom of the coke quenching furnace is provided with an annular water tank and a cooling water emptying port connected with the annular water tank so as to be convenient for emergently discharging the cooling water leaked by the cooling water circulation pipe network.
Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model. The objects and other advantages of the utility model may be realized and obtained by means of the instrumentalities and combinations particularly pointed out in the specification.
Drawings
For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, the present utility model will be described in the following preferred detail with reference to the accompanying drawings, in which:
FIG. 1 is a schematic view of a coke quenching device suitable for a small coke oven;
FIG. 2 is a schematic view of a coke quenching furnace;
fig. 3 is a schematic structural view of a cooling water pipe network.
Reference numerals: coke quenching furnace 1, furnace door 101, nitrogen inlet 102, air outlet 103, cooling water emptying port 104, fan 2, manometer 3, thermometer 4, gas stop valve 5, gas heat exchange cooling device 6, cooling water emptying valve 7, cooling water circulation pipe network 8, cooling water outlet 801, cooling water inlet 802, cooling water outlet main valve 9, cooling water outlet branch valve 10, flowmeter 11, water cooling unit 12.
Detailed Description
Other advantages and effects of the present utility model will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present utility model with reference to specific examples. The utility model may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present utility model. It should be noted that the illustrations provided in the following embodiments merely illustrate the basic idea of the present utility model by way of illustration, and the following embodiments and features in the embodiments may be combined with each other without conflict.
Wherein the drawings are for illustrative purposes only and are shown in schematic, non-physical, and not intended to limit the utility model; for the purpose of better illustrating embodiments of the utility model, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the size of the actual product; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numbers in the drawings of embodiments of the utility model correspond to the same or similar components; in the description of the present utility model, it should be understood that, if there are terms such as "upper", "lower", "left", "right", "front", "rear", etc., that indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, it is only for convenience of describing the present utility model and simplifying the description, but not for indicating or suggesting that the referred device or element must have a specific azimuth, be constructed and operated in a specific azimuth, so that the terms describing the positional relationship in the drawings are merely for exemplary illustration and should not be construed as limiting the present utility model, and that the specific meaning of the above terms may be understood by those of ordinary skill in the art according to the specific circumstances.
Referring to fig. 1 to 3, a coke quenching device suitable for a small coke oven comprises a coke quenching oven 1, a water cooling unit 12 and a gas heat exchange cooling device 6. The coke quenching furnace 1 is square and comprises a furnace body and a furnace door 101, the furnace door 101 is one of the side walls of the coke quenching furnace, the furnace body is hinged and connected with one side of the furnace door 101 in a sealing way so as to realize the opening and closing of the furnace door 101 and the loading and unloading of coke, the side walls of the inner cavity of the furnace body are all provided with cooling water circulation pipe networks 8, namely the cooling water circulation pipe networks 8 are 3 groups and are respectively provided with a cooling water outlet 801 and a cooling water inlet 802, the bottom of the furnace body is provided with an annular water tank and a cooling water emptying port 104 communicated with the annular water tank, and a cooling water emptying valve 7 is arranged at the cooling water emptying port 104; specifically, the cooling water circulation pipe network 8 is embedded on the side wall of the furnace body inner cavity, cooling water walks the inside of the cooling water circulation pipe network 8, the outer wall of the cooling water circulation pipe network 8 is in contact with air in the coke quenching furnace, the internal temperature of the coke quenching furnace is reduced, and the purpose of accelerating dry quenching cooling is achieved.
A nitrogen inlet 102 and an air outlet 103 are arranged on the furnace body so as to introduce nitrogen and discharge air, the nitrogen inlet 102 is connected with an external nitrogen channel, a valve is arranged on the external nitrogen channel so as to control whether the nitrogen is fed into the nitrogen inlet 102, a gas stop valve 5 is arranged at the air outlet 103, and the gas stop valve 5 is closed after the furnace body is filled with the nitrogen, so that the coke quenching furnace 1 forms a space filled with the nitrogen so as to reduce burning loss of coke in the cooling process; the top of furnace gate 101 and furnace body all is equipped with fan 2 for accelerate the inside air flow of coke quenching stove, reach coke rapid cooling's purpose, and be equipped with on furnace gate 101 and be used for detecting the manometer 3 of furnace body inner chamber pressure, and be used for detecting the thermometer 4 of the surface temperature of coke placed in the furnace body inner chamber, so that real-time temperature and the pressure in the real-time detection stove also can avoid appearing the dangerous condition of high pressure. The gas heat exchange cooling device 6 is used for charging cooled nitrogen into the nitrogen inlet 102, and is provided with a nitrogen channel and a cooling water channel so as to realize indirect heat exchange between cooling water and nitrogen, and the nitrogen in an external nitrogen channel flows into the nitrogen inlet 102 through the nitrogen channel in the gas heat exchange cooling device 6; the water cooling unit 12 is used for providing cooling water for the gas heat exchange cooling device 6 and the cooling water circulation pipe network 8 and recycling the cooling water, the water cooling unit is provided with a water outlet and a water inlet, a cooling water outlet main valve 9 is arranged on the water outlet, the cooling water outlet main valve 9 is divided into four cooling water branches, the cooling water branches are respectively connected with the cooling water inlets of three groups of cooling water circulation pipe networks and the inlets of cooling water channels in the gas heat exchange cooling device 6, and the cooling water outlets of the three groups of cooling water circulation pipe networks and the outlets of the cooling water channels in the gas heat exchange cooling device 6 are connected with the water inlet of the water cooling unit 12 so as to form a cooling water circulation loop.
The four cooling water branches are respectively provided with a cooling water outlet branch valve 10 and a flowmeter 11, and the flow meters 11 are correspondingly arranged at the cooling water outlets of the three groups of cooling water circulation pipe networks corresponding to the four cooling water branches and the outlets of the cooling water channels in the gas heat exchange cooling device 6, so that whether cooling leakage exists in the corresponding cooling water branches can be detected by comparing the flow rates of the two flow meters on the same cooling water branch, and corresponding treatment is facilitated.
In particular, the individual devices in this embodiment, such as the gas heat exchange cooling device 6, the water cooling unit 12, and the valves, pressure gauges, and temperature gauges, are commercially available.
The coke quenching method suitable for the small coke oven adopts the coke quenching device and specifically comprises the following steps:
s1: before the small coke oven is discharged, a water cooling unit 12 is opened in advance to produce cooling water, a cooling water outlet main valve 9 and cooling water outlet branch valves 10 of 4 cooling water branches at the rear end of the cooling water outlet main valve are opened, and the cooling water outlet branch valves are preferably 10-20 min in advance in the implementation;
s2: pushing coke into the coke quenching furnace 1 after coke is discharged from the small coke furnace experiment, closing the furnace door 101, starting to send nitrogen into the coke quenching furnace 1, and enabling the nitrogen to be cooled by the gas heat exchange cooling device 6 and cooling water, and then entering the coke quenching furnace 1;
s3: opening a gas stop valve 5 to ensure that the gas in the coke quenching furnace 1 is discharged, so that the gas in the coke quenching furnace is completely discharged under the action of nitrogen;
s4: opening the furnace door 101 and the fan 2 at the top of the furnace body to accelerate the air flow in the coke quenching furnace 1 and ensure the rapid cooling of the coke in the coke quenching furnace 1;
s5: after cooling for a certain time, the gas stop valve 5 is closed, so that the gas in the coke quenching furnace 1 is isolated from the outside air, and the oxygen content in the coke quenching furnace is reduced to achieve the purpose of reducing coke burning loss;
s6: after the gas stop valve 5 is closed, continuing to introduce nitrogen for a certain time, in the embodiment, preferably continuing to introduce nitrogen for 1-2 min, and then stopping introducing nitrogen into the coke quenching furnace 1, wherein the coke quenching furnace 1 is in a sealed state, a pressure gauge 3 on the furnace door 101 detects and displays the internal gas pressure of the coke quenching furnace 1, and a temperature gauge 4 detects and displays the surface temperature of coke;
s7: the surface temperature of the coke in the quenching furnace 1 was observed by the thermometer 4, and when the surface temperature of the coke was lowered to a certain temperature, in this embodiment, it was preferably 200 ℃, the cooling water outlet main valve 9 was closed, the cooling of the coke was completed, the furnace door 101 was opened, and the coke was taken out.
By the method, the defects of high coke burning loss, long coke quenching time and the like in the small coke oven coke quenching process are overcome, and meanwhile, the stable quality of the small coke oven coke is ensured by dry quenching, so that the accuracy of the experimental result of the small coke oven coke is ensured.
Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the present utility model, which is intended to be covered by the claims of the present utility model.
Claims (5)
1. A coke quenching device suitable for a small coke oven, which is characterized in that: the coke quenching furnace comprises a furnace body and a furnace door, a cooling water circulation pipe network is arranged on the side wall of the inner cavity of the furnace body, an annular water tank and a cooling water emptying port communicated with the annular water tank are arranged at the bottom of the furnace body, a cooling water emptying valve is arranged at the cooling water emptying port, a nitrogen inlet and an air outlet are arranged on the furnace body, the nitrogen inlet is connected with an external nitrogen channel, and a gas stop valve is arranged at the air outlet;
the gas heat exchange cooling device is provided with a nitrogen channel and a cooling water channel for indirect heat exchange, the external nitrogen channel is connected to the nitrogen inlet through the nitrogen channel of the gas heat exchange cooling device, the water cooling unit is provided with a water outlet and a water inlet, the water outlet of the water cooling unit is respectively connected with a cooling water inlet of a cooling water circulation pipe network and an inlet of the cooling water channel in the gas heat exchange cooling device, and a cooling water outlet of the cooling water circulation pipe network and an outlet of the cooling water channel in the gas heat exchange cooling device are both connected with the water inlet of the water cooling unit so as to form a cooling water circulation loop.
2. The quenching device as claimed in claim 1, wherein: the coke quenching furnace is square, the furnace door is one of the side walls of the coke quenching furnace, one side of the furnace body is hinged and connected with one side of the furnace door in a sealing manner, and the cooling water circulation pipe networks are three groups and are respectively arranged on the three side walls of the inner cavity of the furnace body.
3. The quenching device as claimed in claim 2, wherein: fans are arranged at the top parts of the furnace door and the furnace body so as to accelerate the air flow in the coke quenching furnace, and a pressure gauge for detecting the pressure in the inner cavity of the furnace body and a thermometer for detecting the surface temperature of coke placed in the inner cavity of the furnace body are arranged on the furnace door.
4. The quenching device as claimed in claim 2, wherein: the three groups of cooling water circulation pipe networks are respectively provided with respective cooling water outlets and cooling water inlets, the water outlets of the water cooling units are divided into four cooling water branches, the cooling water inlets of the three groups of cooling water circulation pipe networks are respectively connected with the inlets of the cooling water channels in the gas heat exchange cooling device, the cooling water outlets of the three groups of cooling water circulation pipe networks and the outlets of the cooling water channels in the gas heat exchange cooling device are respectively connected with the water inlets of the water cooling units, the four cooling water branches are respectively provided with flow meters, and the flow meters are correspondingly arranged at the cooling water outlets of the three groups of cooling water circulation pipe networks corresponding to the four cooling water branches and the outlet of the cooling water channel in the gas heat exchange cooling device.
5. The quenching device as recited in claim 4, suitable for small coke ovens, wherein: and a cooling water outlet main valve is arranged at the water outlet of the water cooling unit, and cooling water outlet branch valves are arranged on the four cooling water branches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322210216.8U CN220579188U (en) | 2023-08-16 | 2023-08-16 | Coke quenching device suitable for small coke oven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322210216.8U CN220579188U (en) | 2023-08-16 | 2023-08-16 | Coke quenching device suitable for small coke oven |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220579188U true CN220579188U (en) | 2024-03-12 |
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ID=90122025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322210216.8U Active CN220579188U (en) | 2023-08-16 | 2023-08-16 | Coke quenching device suitable for small coke oven |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220579188U (en) |
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2023
- 2023-08-16 CN CN202322210216.8U patent/CN220579188U/en active Active
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