A coke oven

Abstract

The present invention provides a coke oven, each heat storage chamber is arranged in the sequence of air heat storage chamber-gas heat storage chamber, gas heat storage chamber-air heat storage chamber along the longitudinal direction of the coke oven; the air heat storage chamber is further divided into a first air heat storage chamber and a second air heat storage chamber; the adjacent double vertical fire channels in the combustion chamber are connected to form a four-linked fire channel; the odd-numbered vertical fire channels in each combustion chamber are connected to the heat storage chamber grid of the heat storage chamber with the same number as the combustion chamber through an inclined channel; the even-numbered vertical fire channels are connected to the heat storage chamber grid of the heat storage chamber with the next number. With the coke oven provided by the present invention, the two air heat storage chambers are respectively supplied with air at different positions of the vertical fire channels to achieve segmented regulation of air flow; the connection mode of the double vertical fire channels and the heat storage chamber grid is conducive to uniform airflow distribution in each vertical fire channel; the four-linked fire channels are conducive to increasing the waste gas circulation volume and reducing the generation of pollutants.

Description

Technical Field

[0001] The invention relates to the technical field of coke oven design, in particular to a new type of coke oven. Background Art

[0002] Modern industrial production has higher and higher requirements for coke ovens, such as requiring the strength and uniformity of the coke produced to be high; requiring low pollutant content in the coke oven exhaust gas; requiring high yields of naphthalene, hydroxyphenol, etc., etc. These requirements are all related to the temperature control and combustion state of the coke oven. While the overall structure of modern coke ovens remains basically unchanged, they continue to explore improvements to the furnace structure to meet the requirements of modern industrial production. Summary of the invention

[0003] The purpose of the embodiment of the present invention is to provide a coke oven, which optimizes the combustion state and temperature control of the coke oven by improving the structure of the oven body. The specific technical solution is as follows:

[0004] The present invention provides a coke oven, comprising a carbonization chamber, a combustion chamber and a regenerator, wherein the combustion chamber and the carbonization chamber are located at the upper part of the coke oven, and the combustion chamber and the carbonization chamber are alternately arranged along the longitudinal direction of the coke oven, wherein the combustion chamber and the regenerator are numbered in natural number sequence from the left side of the coke oven machine side; the regenerator is located below the carbonization chamber and the combustion chamber, and is arranged along the longitudinal direction of the coke oven;

[0005] The number of combustion chambers is one more than that of carbonization chambers, and the number of regenerators is one more than that of combustion chambers;

[0006] Two adjacent heat storage chambers are arranged symmetrically with respect to the center line of the combustion chamber above the two;

[0007] Adjacent regenerators are separated by a main wall; each regenerator is separated into an air regenerator and a gas regenerator by a single wall along the longitudinal direction of the coke oven, and the air regenerator is separated into a first air regenerator and a second air regenerator by an air regenerator partition wall; the air regenerator and the gas regenerator in two adjacent regenerators are arranged in mirror symmetry with respect to the center line of the main wall; each regenerator is separated into a plurality of regenerator compartments by a regenerator compartment partition wall along the machine side-coke side direction;

[0008] The combustion chamber includes a plurality of quadruple fire channels separated by quadruple fire channel partition walls along the engine side-coke side direction; the quadruple fire channel is composed of two adjacent double fire channels, and the two adjacent double fire channels are connected through circulation holes at the bottom of the double fire channel partition walls;

[0009] Each double vertical fire channel is divided into two vertical fire channels by a vertical fire channel partition wall, and the two vertical fire channels are connected through the circulation hole at the bottom and the spanning hole at the top of the vertical fire channel partition wall; wherein the vertical fire channels in each combustion chamber are numbered in natural number sequence from the engine side to the coke side;

[0010] An air inlet and a gas inlet are arranged at the bottom of each vertical fireway, and two vertical air passages are arranged in the partition wall of each vertical fireway, one air passage corresponding to each vertical fireway, and each air passage is connected to the corresponding vertical fireway through an air outlet;

[0011] The odd-numbered vertical fire channels in each combustion chamber are connected with the heat storage chamber compartments of the heat storage chamber with the same number as the combustion chamber through ramps; the even-numbered vertical fire channels in each combustion chamber are connected with the heat storage chamber compartments of the heat storage chamber with the next number through ramps; the air inlet, gas inlet and air channel of the vertical fire channels are respectively connected with the second air heat storage chamber, gas heat storage chamber and first air heat storage chamber of the heat storage chamber compartments through ramps.

[0012] In some embodiments of the present invention, the ramps connected to the same double vertical fire duct are distributed in rotational symmetry with respect to the vertical fire duct partition space.

[0013] In some embodiments of the present invention, multiple brick gas ducts are arranged in each main wall along the machine side-coke side direction, and the multiple brick gas ducts are respectively connected to each vertical fire channel; each brick gas duct is respectively arranged on both sides below the double vertical fire channel partition wall and the quadruple vertical fire channel partition wall.

[0014] In some embodiments of the present invention, the first air heat storage chamber, the second air heat storage chamber and the gas heat storage chamber of each heat storage chamber are respectively connected to the small flue below; the top of each small flue is respectively provided with a gas flow two-way regulating device, and the gas flow two-way regulating device includes a plurality of groups of double-layer porous plates with the same number as the heat storage chamber grids; the plurality of groups of double-layer porous plates respectively cover the connection between the heat storage chamber grids and the small flue;

[0015] Each set of double-layer porous plates includes two rectangular porous plates arranged in parallel, and the projections of the plate surfaces of the two porous plates on the same plane overlap;

[0016] The distance between the two porous plates is 0<d≤400mm;

[0017] At least one hole opening parameter of the two multi-hole plates is different; the hole opening parameter includes hole position, hole shape, hole size and hole number;

[0018] Both ends of each set of double-layered porous plates are fixed on a fixed shaft respectively, and two adjacent sets of double-layered porous plates are fixed on the same fixed shaft;

[0019] Rolling wheels are arranged at both ends of the fixed shaft, so that the gas flow bidirectional regulating device can move along the length of the small flue.

[0020] In some embodiments of the present invention, a sealing baffle is provided above the connection between two adjacent groups of double-layer porous plates, and the sealing baffle is in close contact with the bottom of the partition wall of the heat storage chamber to isolate the space above the double-layer porous plates.

[0021] In some embodiments of the present invention, the distance between the two porous plates is 10≤d≤100 mm.

[0022] In some embodiments of the present invention, the porous plate is a metal porous plate.

[0023] In some embodiments of the present invention, the coke side of the coke oven is provided with an inlet and outlet for the gas flow bidirectional regulating device to enter and exit the small flue.

[0024] In the coke oven provided by the embodiment of the present invention, two air regenerators are arranged in the regenerator, and air is supplied to different positions of the vertical fire channel independently, so that the air flow rate can be adjusted in sections; thereby, the coke oven of the present invention can better control the combustion state and combustion temperature, so as to improve the production quality of coke and the yield of chemical products;

[0025] The connection mode of the vertical fire channels and the heat storage compartments of each combustion chamber in the coke oven makes the heat storage compartments on both sides of the double vertical fire channels equal to the distance between the double vertical fire channels, so that the inclined channels connecting the double vertical fire channels and the heat storage compartments can be rotationally symmetrically distributed relative to the vertical fire channel partition wall, which is conducive to uniform airflow distribution in each vertical fire channel;

[0026] The two double-connected fire channels are connected through circulation holes to form a quadruple-connected fire channel, which increases the amount of exhaust gas circulating in the quadruple-connected fire channel and is beneficial to reducing the content of nitrogen oxides in the exhaust gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 The figure is a schematic structural diagram of a side section of a coke oven;

[0029] Figure 2 It is a structural schematic diagram of a coke oven machine side-coke side section;

[0030] Figure 3 It is a structural schematic diagram of the connection relationship between the vertical fire channel and the heat storage chamber;

[0031] Figure 4 It is a structural schematic diagram of a gas flow bidirectional regulating device;

[0032] Figure 5 A top view of a gas flow bidirectional regulating device. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] The present invention provides a coke oven, such as Figure 1 , Figure 2 As shown, it includes a carbonization chamber 18, a combustion chamber 17 and a regenerator 2, wherein the combustion chamber 17 and the carbonization chamber 18 are located at the upper part of the coke oven, and the combustion chamber 17 and the carbonization chamber 18 are alternately arranged along the longitudinal direction of the coke oven, and the regenerator 2 is located below the carbonization chamber 18 and the combustion chamber 17, and arranged along the longitudinal direction of the coke oven;

[0035] The number of combustion chambers 17 is one more than the number of carbonization chambers 18, and the number of regenerators 2 is one more than the number of combustion chambers 17;

[0036] Two adjacent heat storage chambers 2 are arranged symmetrically with respect to the center line of the combustion chamber 17 above the two.

[0037] In some embodiments of the present invention, except for the heat storage chambers at both ends, other heat storage chambers are located directly below the carbonization chamber; the "directly below" means that the center line of the heat storage chamber 2 along the longitudinal direction of the coke oven coincides with the center line of the carbonization chamber 18 along the longitudinal direction of the coke oven.

[0038] The "left side of the coke oven machine side" mentioned in the present invention refers to the position corresponding to the left side of a person when a person stands on the coke oven machine side and faces the coke oven.

[0039] The "machine side-coke side" direction mentioned in the present invention refers to the direction from the machine side to the coke side of the coke oven; the "coke oven longitudinal direction" refers to the direction of the coke oven perpendicular to the machine side-coke side; the machine side-coke side direction and the coke oven longitudinal direction of the coke oven are both well-known descriptions in the art, and the present invention will not be elaborated here.

[0040] The carbonization chamber 18 is a conventional structure in the art, and the present invention will not be described in detail here.

[0041] Adjacent regenerators 2 are separated by a main wall 4; each regenerator 2 is separated into an air regenerator 2-1 and a gas regenerator 2-2 by a single wall 6 along the longitudinal direction of the coke oven, and the air regenerator 2-1 is separated into a first air regenerator 2-1-1 and a second air regenerator 2-1-2 by an air regenerator partition wall 7; the air regenerator 2-1 and the gas regenerator 2-2 in two adjacent regenerators 2 are arranged in mirror symmetry with respect to the center line of the main wall 4; each regenerator 2 is separated into a plurality of regenerator compartments 3 by a regenerator compartment partition wall 20 along the machine side-coke side direction;

[0042] In some embodiments of the present invention, the heat storage compartments 3 in the same heat storage chamber 2 have the same structure.

[0043] The combustion chamber 17 includes a plurality of quadruple fire channels 5 separated by quadruple fire channel partition walls 24 along the engine side-coke side direction; the quadruple fire channel 5 is composed of two adjacent double fire channels 15, and the two adjacent double fire channels 15 are connected through the circulation hole 11 at the bottom of the double fire channel partition wall 14;

[0044] Each double vertical fire channel 15 is divided into two vertical fire channels 22 by a vertical fire channel partition wall 23, and the two vertical fire channels 22 are connected through the circulation hole 19 at the bottom of the vertical fire channel partition wall 23 and the spanning hole 13 at the top;

[0045] The inventors discovered during their research that connecting two adjacent double fire channels 15 through a circulation hole 11 to form a quadruple fire channel 5 is beneficial to increasing the circulation volume of the exhaust gas. The exhaust gas circulation volume of the double fire channel is generally less than 40%, while after the quadruple fire channel is formed, the exhaust gas circulation volume can reach more than 50%; the increase in the exhaust gas circulation volume can effectively reduce the content of pollutants such as nitrogen oxides in the exhaust gas on the one hand, and on the other hand, the increase in the exhaust gas circulation volume is conducive to the increase in the flame length, thereby improving the high-direction heating of the coke oven. Furthermore, the uniform high-direction heating of the coke oven is beneficial to improving the quality of coke and shortening the coking time.

[0046] In addition, the two dual fire channels 15 are connected to form a structure of a quadruple fire channel 5, so that each quadruple fire channel 5 can adaptively adjust the exhaust gas circulation volume according to the temperature of the fire channel, which is conducive to uniform temperature in the combustion chamber.

[0047] Each vertical fire channel 22 is provided with an air inlet 21 and a gas inlet 26 at the bottom, and each vertical fire channel partition wall 23 is provided with two vertical air passages 16, one air passage 16 corresponding to each vertical fire channel, and each air passage 16 is connected to the corresponding vertical fire channel 22 through the air outlet 12;

[0048] In some embodiments of the present invention, the air outlet 12 passes through the vertical fireway partition wall between the air channel 16 and the corresponding vertical fireway; in some embodiments of the present invention, a plurality of air outlets 12 are provided at different heights of the air channel 16 .

[0049] In some embodiments of the present invention, Figure 1 , Figure 3 As shown, two adjacent combustion chambers 17 are symmetrically distributed relative to the center line of the carbonization chamber 18 between them. It can be understood that the air inlet 21 and the gas inlet 26 in each double fire channel 15 in the two adjacent combustion chambers 17 are symmetrically distributed relative to the center line of the carbonization chamber 18 between the combustion chambers.

[0050] The combustion chamber 17 and the regenerator 2 are numbered in natural number order from the left side of the coke oven machine side;

[0051] The vertical fire channels in each combustion chamber 17 are numbered in natural number order from the engine side to the coke side;

[0052] The odd-numbered vertical fire channels in each combustion chamber are connected to the heat storage chamber compartments of the heat storage chamber with the same number as the combustion chamber through the ramp 10; the even-numbered vertical fire channels in each combustion chamber are connected to the heat storage chamber compartments of the heat storage chamber with the next higher number through the ramp; the air inlet 21, the gas inlet 26 and the air channel 16 of the vertical fire channels are respectively connected to the second air heat storage chamber 2-1-2, the gas heat storage chamber 2-2 and the first air heat storage chamber 2-1-1 of the heat storage chamber compartments through the ramp 10.

[0053] In some embodiments of the present invention, the number of heat storage chamber compartments 3 in the heat storage chamber 2 is the same as the number of dual-connected fire channels 15 in the combustion chamber 17; in some embodiments of the present invention, in the machine side direction, the bottom of each dual-connected fire channel 15 is adjacent to the two left and right heat storage chamber compartments 3.

[0054] For example, Figure 3 As shown, in some embodiments of the present invention, for any double vertical fire channel 15, the vertical fire channel close to the machine side is an odd-numbered vertical fire channel, and the vertical fire channel close to the coke side is an even-numbered vertical fire channel; the double vertical fire channel is connected with a heat storage chamber partition on the left and right sides along the longitudinal direction of the coke oven; wherein the air inlet 21, the gas inlet 26 and the air channel 16 of the odd vertical fire channel are respectively connected with the second air heat storage chamber 2-1-2, the gas heat storage chamber 2-2 and the first air heat storage chamber 2-1-1 in the heat storage chamber partition on the left side, and the air inlet 21, the gas inlet 26 and the air channel 16 of the even vertical fire channel are respectively connected with the second air heat storage chamber 2-1-2, the gas heat storage chamber 2-2 and the first air heat storage chamber 2-1-1 in the heat storage chamber partition on the right side.

[0055] The "left side" and "right side" in the present invention refer to the directions corresponding to the left side and the right side of a person when the person faces the machine side of the coke oven.

[0056] Within the set time, air and lean coal gas enter the odd-numbered vertical fire channels through the first air heat storage chamber 2-1-1, the second air heat storage chamber 2-1-2 and the gas heat storage chamber 2-2 of the left heat storage chamber division respectively, and the exhaust gas generated after combustion enters the even-numbered vertical fire channels through the crossing hole 13 above the vertical fire channel partition wall, and is discharged after heat recovery through the first air heat storage chamber 2-1-1, the second air heat storage chamber 2-1-2 and the gas heat storage chamber 2-2 of the right heat storage chamber division. In another time period, the flow directions of air and gas change, that is, the air and lean gas enter the even-numbered vertical fire channels through the first air heat storage chamber 2-1-1, the second air heat storage chamber 2-1-2 and the gas heat storage chamber 2-2 of the right heat storage chamber division respectively, and the exhaust gas generated after combustion enters the odd-numbered vertical fire channels through the crossing hole 13 above the vertical fire channel partition wall, and is discharged after heat recovery through the first air heat storage chamber 2-1-1, the second air heat storage chamber 2-1-2 and the gas heat storage chamber 2-2 of the left heat storage chamber division.

[0057] In the present invention, there is one more regenerator 2 than the combustion chamber 17, and two adjacent double-connected fire channels 15 in the longitudinal direction of the coke oven (separated by a carbonization chamber 18) are connected to the regenerator compartment 3 located below the carbonization chamber 18 between the two. During a period of time, the regenerator compartment simultaneously provides air and lean coal gas to the two adjacent double-connected fire channels in the longitudinal direction of the coke oven. During another period of time, the exhaust gas in the two adjacent double-connected fire channels in the machine side direction is discharged through the regenerator compartment at the same time. At this time, the airflow directions in each double-connected fire channel in the two adjacent combustion chambers are opposite.

[0058] In some embodiments of the present invention, the ramps 10 connected to the same dual vertical fireway 15 are spatially rotationally symmetrically distributed relative to the vertical fireway partition wall 23. Figure 3 As shown, when the air inlet 21 and the gas inlet 26 at the bottom of the two vertical fire channels in the double vertical fire channel 15 are rotationally symmetrical relative to the vertical fire channel partition wall 23, the ramp connected thereto is spatially rotationally symmetrical, and the positions of the air inlet 21 and the gas inlet 26 determine the direction of the ramp, which is a conventional technical means in the art and will not be elaborated herein in the present invention.

[0059] At this time, the flow channels (inclines) of the gases (air and lean coal gas) in each vertical fire channel have the same longitudinal and local resistance coefficients, which is beneficial to uniform airflow distribution and thermal regulation in the coke oven.

[0060] In some embodiments of the present invention, a plurality of brick gas ducts 8 are arranged in each main wall 4 along the machine side-coke side direction, and the plurality of brick gas ducts 8 are respectively connected to each vertical fire channel 22; each brick gas duct 8 is respectively arranged on both sides below the double vertical fire channel partition wall 14 and the quadruple vertical fire channel partition wall 24.

[0061] The lean coal gas in the present invention is coal gas with low calorific value, and the rich coal gas is coal gas with high calorific value. These are well-known terms in the art and will not be elaborated in detail in the present invention.

[0062] In some embodiments of the present invention, lean coal gas and rich coal gas are introduced into the vertical fire channel at different times. When rich coal gas is used, the air heat storage chamber and the gas heat storage chamber in the heat storage chamber are both used to supply air into the vertical fire channel. This is a well-known operation in the art and will not be elaborated herein in the present invention.

[0063] In some embodiments of the present invention, Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, the first air heat storage chamber 2-1-1, the second air heat storage chamber 2-1-2 and the gas heat storage chamber 2-2 of each heat storage chamber are respectively connected to the small flue 1 at the bottom; therefore, the amount of air entering the air channel 16 through the first air heat storage chamber 2-1-1 and then entering the middle of the vertical fire channel, and the amount of air entering the bottom of the vertical fire channel through the second air heat storage chamber 2-1-2 can be independently adjusted at the entrance of the small flue; and the temperature at the entrance of the small flue is relatively low, which is convenient for the adjustment operation.

[0064] In some embodiments of the present invention, a gas flow two-way regulating device 9 is respectively provided at the top of each small flue 1, and the gas flow two-way regulating device 9 includes a plurality of groups of double-layer porous plates 9-3 having the same number as the heat storage chamber grids; the plurality of groups of double-layer porous plates 9-3 respectively cover the connection between the heat storage chamber grids 3 and the small flue 1;

[0065] Each set of double-layer porous plates 9-3 includes two rectangular porous plates arranged in parallel, and the projections of the plate surfaces of the two porous plates on the same plane overlap;

[0066] The distance between the two porous plates is 0<d≤400mm;

[0067] At least one hole opening parameter of the two multi-hole plates is different; the hole opening parameter includes hole position, hole shape, hole size and hole number;

[0068] Both ends of each set of double-layer porous plates 9-3 are fixed on a fixed shaft 9-2, and two adjacent sets of double-layer porous plates 9-3 are fixed on the same fixed shaft 9-2;

[0069] Rolling wheels 9 - 1 are provided at both ends of the fixed shaft 9 - 2 , so that the gas flow bidirectional regulating device 9 can move along the long direction (machine side-coke side direction) of the small flue 1 .

[0070] The gas flow bidirectional regulating device of the present invention provides different resistance parameters for the ascending airflow and descending airflow flowing through the device by setting two upper and lower porous plates with different opening parameters, so as to evenly distribute the airflow in the coke oven. Those skilled in the art can calculate the resistance coefficients of the upper and lower porous plates in the gas flow bidirectional regulating device according to actual needs, and determine the positions, hole shapes, hole sizes, number of holes and the distance between the two porous plates according to the resistance coefficients. The calculation method is a commonly used technical means in the field, and the present invention is not limited here.

[0071] In some embodiments of the present invention, a sealing baffle is provided above the connection between two adjacent groups of double-layer porous plates, and the sealing baffle is in close contact with the bottom of the heat storage chamber partition wall 20 to isolate the space above the double-layer porous plates.

[0072] In some embodiments of the present invention, the distance between the two porous plates is 10≤d≤100 mm.

[0073] In some embodiments of the present invention, the porous plate is a metal porous plate.

[0074] In some embodiments of the present invention, an inlet and outlet for the gas flow bidirectional regulating device to enter and exit the small flue is provided on the coke side of the coke oven.

[0075] The uniformity of the airflow is adjusted between the small flue 1 and the regenerator 2 of the existing coke oven by grate bricks and regulating bricks, and the adjustment accuracy is low. After the construction, it cannot be adjusted manually. However, the gas flow bidirectional adjustment device of the present invention not only improves the adjustment accuracy, but also the gas flow bidirectional adjustment device 9 can be taken out and pushed in through the inlet and outlet 25 set on the coke side. Therefore, the resistance coefficient can be adjusted according to the actual situation during the production process to make the airflow distribution more uniform.

[0076] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0077] Each embodiment in this specification is described in a related manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0078] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.

Claims

1. A coke oven, comprising a carbonization chamber, a combustion chamber and a regenerator, wherein the combustion chamber and the carbonization chamber are located at the upper part of the coke oven, and the combustion chamber and the carbonization chamber are alternately arranged along the longitudinal direction of the coke oven, wherein the combustion chamber and the regenerator are numbered in natural number sequence from the left side of the coke oven machine side; the regenerator is located below the carbonization chamber and the combustion chamber, and is arranged along the longitudinal direction of the coke oven; It is characterized in that The number of combustion chambers is one more than that of carbonization chambers, and the number of regenerators is one more than that of combustion chambers; Two adjacent heat storage chambers are arranged symmetrically with respect to the center line of the combustion chamber above the two; Adjacent regenerators are separated by a main wall; each regenerator is separated into an air regenerator and a gas regenerator by a single wall along the longitudinal direction of the coke oven, and the air regenerator is separated into a first air regenerator and a second air regenerator by an air regenerator partition wall; the air regenerator and the gas regenerator in two adjacent regenerators are arranged in mirror symmetry with respect to the center line of the main wall; each regenerator is separated into a plurality of regenerator compartments by a regenerator compartment partition wall along the machine side-coke side direction; The combustion chamber includes a plurality of quadruple fire channels separated by quadruple fire channel partition walls along the engine side-coke side direction; the quadruple fire channel is composed of two adjacent double fire channels, and the two adjacent double fire channels are connected through circulation holes at the bottom of the double fire channel partition walls; Each double vertical fire channel is divided into two vertical fire channels by a vertical fire channel partition wall, and the two vertical fire channels are connected through the circulation hole at the bottom and the spanning hole at the top of the vertical fire channel partition wall; wherein the vertical fire channels in each combustion chamber are numbered in natural number sequence from the engine side to the coke side; An air inlet and a gas inlet are arranged at the bottom of each vertical fireway, and two vertical air passages are arranged in the partition wall of each vertical fireway, one air passage corresponding to each vertical fireway, and each air passage is connected to the corresponding vertical fireway through an air outlet; The odd-numbered vertical fire channels in each combustion chamber are connected to the heat storage compartment of the heat storage compartment with the same number as the combustion chamber through a ramp; the even-numbered vertical fire channels in each combustion chamber are connected to the heat storage compartment of the heat storage compartment with the next number through a ramp; the air inlet, gas inlet and air channel of the vertical fire channels are respectively connected to the second air heat storage compartment, gas heat storage compartment and first air heat storage compartment of the heat storage compartment through the ramp; The ramps connected to the same double vertical fire ducts are distributed rotationally symmetrically relative to the vertical fire duct partition wall space.

2. The coke oven according to claim 1, It is characterized in that A plurality of brick gas ducts are arranged in each main wall along the machine side-coke side direction, and the plurality of brick gas ducts are respectively connected with each vertical fire channel; each brick gas duct is respectively arranged on both sides below the double vertical fire channel partition wall and the quadruple vertical fire channel partition wall.

3. The coke oven according to any one of claims 1 to 2, It is characterized in that The first air heat storage chamber, the second air heat storage chamber and the gas heat storage chamber of each heat storage chamber are connected to the small flue at the bottom respectively; the top of each small flue is provided with a gas flow two-way regulating device, and the gas flow two-way regulating device comprises a plurality of groups of double-layer porous plates having the same number as the heat storage chamber grids; the plurality of groups of double-layer porous plates respectively cover the connection between the heat storage chamber grids and the small flue; Each set of double-layer porous plates includes two rectangular porous plates arranged in parallel, and the projections of the plate surfaces of the two porous plates on the same plane overlap; The distance between the two porous plates is 0<d≤400mm; At least one hole opening parameter of the two multi-hole plates is different; the hole opening parameter includes hole position, hole shape, hole size and hole number; Both ends of each set of double-layered porous plates are fixed on a fixed shaft respectively, and two adjacent sets of double-layered porous plates are fixed on the same fixed shaft; Rolling wheels are arranged at both ends of the fixed shaft, so that the gas flow bidirectional regulating device can move along the length of the small flue.

4. The coke oven according to claim 3, It is characterized in that A sealing baffle is arranged above the connection between two adjacent groups of double-layer porous plates, and the sealing baffle is in close contact with the bottom of the partition wall of the heat storage chamber to isolate the space above the double-layer porous plates.

5. The coke oven according to claim 3, It is characterized in that The distance between the two porous plates is 10≤d≤100mm.

6. The coke oven according to claim 3, It is characterized in that The porous plate is a metal porous plate.

7. The coke oven according to claim 3, It is characterized in that The coke side of the coke oven is provided with an entrance and exit for the gas flow two-way regulating device to enter and exit the small flue.

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