CN220867331U - Pressure regulating device of piston rod double-sealing single-hole carbonization chamber - Google Patents
Pressure regulating device of piston rod double-sealing single-hole carbonization chamber Download PDFInfo
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- CN220867331U CN220867331U CN202322774004.2U CN202322774004U CN220867331U CN 220867331 U CN220867331 U CN 220867331U CN 202322774004 U CN202322774004 U CN 202322774004U CN 220867331 U CN220867331 U CN 220867331U
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- storage tank
- bridge pipe
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- 238000003763 carbonization Methods 0.000 title claims abstract description 25
- 238000007789 sealing Methods 0.000 title claims description 35
- 230000001105 regulatory effect Effects 0.000 title abstract description 8
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims abstract description 69
- 235000011114 ammonium hydroxide Nutrition 0.000 claims abstract description 69
- 238000003860 storage Methods 0.000 claims abstract description 67
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 64
- 239000007788 liquid Substances 0.000 claims abstract description 23
- 230000001174 ascending effect Effects 0.000 claims abstract description 6
- 239000003034 coal gas Substances 0.000 claims description 22
- 239000000571 coke Substances 0.000 claims description 17
- 239000011269 tar Substances 0.000 claims description 16
- 239000003245 coal Substances 0.000 claims description 15
- 238000005507 spraying Methods 0.000 claims description 12
- 238000001514 detection method Methods 0.000 claims description 11
- 238000011068 loading method Methods 0.000 claims description 8
- 238000012423 maintenance Methods 0.000 claims description 7
- 238000001035 drying Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 239000011273 tar residue Substances 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 3
- 230000007423 decrease Effects 0.000 claims description 2
- 238000004140 cleaning Methods 0.000 abstract description 8
- 238000004939 coking Methods 0.000 description 12
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000779 smoke Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000643 oven drying Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 125000003003 spiro group Chemical group 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Abstract
The utility model discloses a piston rod double-seal single-hole carbonization chamber pressure regulating device, which comprises a bridge pipe, a gas collecting pipe, a water storage tank, a sleeve, a piston rod and a cylinder, wherein the bridge pipe is connected with the gas collecting pipe; the inlet end of the bridge pipe is communicated with the side end of the ascending pipe, and the outlet end of the bridge pipe is vertically inserted into the gas collecting pipe after being bent and inclined downwards; a sleeve is vertically arranged at the side close to the vertical section in the bridge pipe, the upper end of the sleeve is connected with the inner top surface of the bridge pipe, and the lower end of the sleeve vertically extends downwards to form an outlet end of the bridge pipe; the inner side of the sleeve is provided with a piston rod, the upper end of the piston rod vertically extends upwards to form a bridge pipe and is linked with the telescopic end of the air cylinder, the lower end of the piston rod vertically extends downwards to form a lower end face of the sleeve and is in threaded connection with the inner bottom face of the water storage tank, and then the water storage tank is driven by the air cylinder to vertically move up and down through the piston rod, so that the outlet end of the bridge pipe is adjusted from being completely below the ammonia water liquid level of the water storage tank to completely exposing the ammonia water liquid level. The utility model has the advantages of sensitive and accurate adjustment, easy tar cleaning, difficult blockage and reduced failure rate.
Description
Technical Field
The utility model relates to the technical field of steelmaking, in particular to a piston rod double-seal single-hole carbonization chamber pressure adjusting device.
Background
The coking process is an important part of the production process of iron and steel enterprises and provides necessary raw materials for blast furnaces. A complete char carbonization cycle is divided into four parts: a coal loading stage, a carbonization process, a furnace drying and coke pushing. In the coal charging stage, all the coal charging smoke dust is led into the gas collecting tube, so that the smoke is prevented from being generated, and the environmental protection problem is caused; the carbonization process needs to adjust the gas opening to achieve the ideal bridge pipe pressure; the furnace drying and coke pushing processes need to open the ascending pipe cover, so that the coal gas needs to be completely sealed in the bridge pipe to prevent the coal gas from overflowing from the ascending pipe. In the whole coking period, the generation amount of raw coke oven gas can change along with coking time, thereby influencing the pressure in the coking chamber. In order to ensure the service life and production safety of the coke oven, the raw gas pressure of the coking chamber must be controlled within a reasonable range, and when the raw gas generation amount of the coking chamber is maximum, the raw gas guiding amount should be increased to the gas collecting pipe in time, so that the problems that the coke oven smoke and fires and a large amount of harmful raw gas leaks out due to the too high raw gas pressure in the coking chamber (not only pollutes the environment, causes energy waste, but also causes a large amount of raw gas to leak into the combustion chamber and damage the coke oven device) are avoided; at the end of coking, if the raw gas generation amount in the coking chamber is small, air can enter the coking chamber to cause coke combustion, ash content increase and coke quality reduction when the pressure is too low.
In the whole coking process of the traditional coke oven, the independent carbonization chamber is not provided with a pressure adjusting device, so that the pressure of the carbonization chamber cannot be independently adjusted, the pressure of the gas collecting pipe can be adjusted only through the adjusting valve on the gas suction pipe, the adjusting means is not accurate enough, and the reaction is lagged. In recent years, a single-hole carbonization chamber pressure regulating system is commonly adopted in a newly built coke oven, and OPR and CPS regulating systems of Zhongyu Jiao Nai are most widely applied at present. But have various problems and defects from the viewpoint of use.
Taking OPR of Jiao Nai as an example, the device is PROven technology of Germany, but from the practical use, the problem that a lump rod is not tightly sealed with a jacket exists, once an ammonia water pipeline of the lump rod is blocked, raw gas can overflow through a gap of the lump rod, and gas is diffused due to the fact that the lump rod is not tightly sealed, so that hidden danger is brought to environmental protection and safety production. In addition, the existing OPR and PROven system is complex in structure, the liquid level adjusting device is small in space and easy to be blocked by tar, and maintenance workload is large. Therefore, the above problems need to be solved.
Disclosure of Invention
Compared with the prior OPR system, the pressure regulating device for the piston rod double-sealing single-hole carbonization chamber has the advantages of simple structure, sensitive and accurate regulation, easy tar cleaning, difficult blockage, convenient maintenance, self-cleaning function and fault rate reduction.
In order to solve the technical problems, the utility model adopts the following technical scheme: the utility model relates to a pressure regulating device for a piston rod double-seal single-hole carbonization chamber, which has the innovation points that: comprises a bridge pipe, a gas collecting pipe, a water storage tank, a sleeve, a piston rod and a cylinder; the inlet end of the bridge pipe is communicated with the side end of the ascending pipe, and the outlet end of the bridge pipe is vertically and downwardly inserted into the upper position of the inner part of the gas collecting pipe after being bent and downwardly inclined; a sleeve is further vertically arranged in the bridge pipe near the middle position of the vertical section side of the bridge pipe, the upper end of the sleeve is in threaded connection or welded connection with the corresponding position of the inner top surface of the bridge pipe, and the lower end of the sleeve vertically extends downwards out of the end face of the outlet end of the bridge pipe; the inner part of the sleeve is also sleeved with a piston rod in a coaxial way, the upper end of the piston rod vertically upwards extends out of the bridge pipe and is in linkage connection with the telescopic end of the cylinder which is vertically arranged, the lower end of the piston rod vertically downwards extends out of the lower end face of the sleeve and is in screw connection with the middle position of the inner bottom surface of the water storage tank which is arranged inside the gas collection pipe, and then the water storage tank is driven by the piston rod to vertically move up and down inside the gas collection pipe under the driving of the cylinder, so that the outlet end of the bridge pipe is adjusted from the position below the ammonia water liquid level of the water storage tank to the position where the ammonia water liquid level is completely exposed.
Preferably, the bridge pipe is connected with the gas collecting pipe through flange screw connection or through tar seal grooves, so that the bridge pipe is convenient to detach and overhaul.
Preferably, the end face of the outlet end of the bridge pipe is an inclined plane, one side of the upper end of the inclined plane is a side close to the center direction of the gas collecting pipe, the gas collecting pipe is ensured to be positioned in the gas collecting pipe, and then in the coal loading stage, coal gas can come out from one side with short vertical length of the outlet end of the bridge pipe and enter the gas collecting pipe.
Preferably, a mechanical seal matched with the piston rod is also arranged at the joint of the piston rod and the upper end of the sleeve in a coaxial way, and then the gas and the liquid in the bridge pipe are prevented from overflowing through the mechanical seal.
Preferably, the length of the sleeve needs to ensure that the lower end of the sleeve is always below the ammonia water liquid level of the water storage tank when the piston rod is at the lower limit position, and the lower end of the sleeve is not contacted with the inner bottom surface of the water storage tank when the piston rod is at the upper limit position.
Preferably, the device also comprises a travel positioner and a limit detection switch; the travel positioner is fixedly arranged on an external steel structure bracket of the bridge pipe, and the detection end of the travel positioner is arranged towards the direction of the piston rod and is electrically connected with the cylinder; and three limit detection switches are arranged on the piston rod at intervals in sequence, the setting positions of the three limit detection switches are required to be matched with the stroke positioner respectively, the lifting positions of the piston rod moving 0%, 10% and 100% of the stroke vertically downwards are monitored, and then the action of the cylinder is controlled.
Preferably, the upper limit position of the piston rod needs to ensure that the outlet end of the bridge pipe is below the ammonia water liquid level of the water storage tank, so that the furnace drying and coke pushing operation can be conveniently performed, and the lower limit position of the piston rod needs to ensure that the outlet end of the bridge pipe is completely exposed out of the ammonia water liquid level of the water storage tank, so that the coal loading stage is entered.
Preferably, the device also comprises a bottom door and a top rod; the water storage tank is of a columnar structure, the diameter of the water storage tank is larger than that of the bridge pipe, the bottom surface of the water storage tank is an inclined surface parallel to the outlet end of the bridge pipe, and one side of the upper end of the bottom surface of the water storage tank is a side close to the center direction of the gas collecting pipe; the bottom surface of aqua storage tank still follows its incline direction embedding by its lower extreme and is equipped with the bottom door, just the lower extreme of bottom door through the round pin axle structure with the bottom surface lower extreme of aqua storage tank corresponds the position and articulates, the upper end overlap joint of bottom door is in on the interior bottom surface of aqua storage tank corresponds the position, and the interior bottom surface of gas collecting tube still vertically is equipped with the ejector pin for bottom door position department, and then along with the vertical decline of piston rod, the ejector pin contacts and drives the bottom door and upwards overturns, alright discharge tar and tar residue.
Preferably, when the piston rod vertically descends to be less than or equal to 90% of the stroke, the bottom door needs to be ensured to be completely closed; when the attribute of the piston rod is reduced by 100% of the stroke, the ejector rod needs to be ensured to completely eject the bottom door.
Preferably, the top of the bridge pipe is also communicated with an ammonia water spraying pipe relative to the left side of the sleeve, ammonia water is sprayed into the bridge pipe through the ammonia water spraying pipe and falls into the water storage tank, so that the gas temperature is reduced, the lower end of the sleeve is always below the ammonia water level of the water storage tank, and the water sealing effect of the piston rod and the gas is ensured; a through hole matched with the piston rod sealing ammonia water pipe is embedded in the position of the upper part of the sleeve relative to the inner part of the bridge pipe, and the through hole is arranged on the opposite side of the ammonia water spraying pipe; one end of the piston rod sealing ammonia water pipe is communicated with the inside of the sleeve through a through hole, the other end of the piston rod sealing ammonia water pipe obliquely upwards extends out of the top of the bridge pipe, a valve is further arranged on the piston rod sealing ammonia water pipe, ammonia water is sprayed into the sleeve through the piston rod sealing ammonia water pipe to press coal gas, and the coal gas is placed into the sleeve from the lower end; the right side wall of the bridge pipe is further provided with an observation hole, and the observation hole is further connected with a cover plate in a sealing mode through bolts, so that maintenance and operation condition observation can be performed through the observation hole.
The utility model has the beneficial effects that:
(1) Compared with the existing OPR system, the utility model has the advantages of simple structure, sensitive and accurate adjustment, easy tar cleaning, difficult blockage, convenient maintenance and self-cleaning function, thereby reducing the failure rate;
(2) In the coal charging stage, in order to prevent ammonia water and a small amount of coal gas from possibly overflowing from the upper part of the sleeve, the double sealing effect of the coal gas can be achieved by arranging the mechanical seal and spraying ammonia gas into the sleeve, so that the coal gas is ensured not to overflow from the bridge pipe, and the reliability is high.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the structure of the utility model during oven drying and coke pushing.
Fig. 2 is a schematic diagram of the structure of the present utility model at the coal charging stage.
FIG. 3 is a top view of the water storage tank of the present utility model.
Fig. 4 is a side view of the water storage tank of the present utility model.
Wherein, 1-piston rod; 2-cylinder; 3-mechanical sealing; 4-bridge tube; 5-observation holes; 6-gas collecting pipes; 7-a water storage tank; 8-bottom door; 9-ejector rods; 10-ammonia water spraying pipe; 11-sealing an ammonia water pipe by a piston rod; 12-sleeve; 13-stroke positioner.
Detailed Description
The technical scheme of the present utility model will be clearly and completely described in the following detailed description.
The utility model relates to a pressure regulating device of a piston rod 1 double-seal single-hole carbonization chamber, which comprises a bridge pipe 4, a gas collecting pipe 6, a water storage tank 7, a sleeve 12, a piston rod 1 and a cylinder 2; the specific structure is as shown in fig. 1-4, the inlet end of the bridge pipe 4 is communicated with the side end of the ascending pipe, and the outlet end of the bridge pipe is vertically and downwardly inserted into the upper position inside the gas collecting pipe 6 after being bent and downwardly inclined; the end face of the outlet end of the bridge pipe 4 is an inclined plane, one side of the upper end of the inclined plane is a side close to the center direction of the gas collecting pipe 6, the gas is ensured to be positioned in the gas collecting pipe 6, and then in the coal loading stage, the gas can come out from one side with short vertical length of the outlet end of the bridge pipe 4 and enter the gas collecting pipe 6. Wherein, bridge pipe 4 passes through flange spiro union with gas-collecting channel 6 and is connected, perhaps passes through tar seal groove connection, and then convenient to detach overhauls.
The utility model is also provided with the sleeve 12 vertically at the middle position of the inner side of the bridge pipe 4 near the vertical section side, as shown in fig. 1 and 2, the upper end of the sleeve 12 is in threaded connection or welded connection with the corresponding position of the inner top surface of the bridge pipe 4, and the lower end of the sleeve extends out of the end surface of the outlet end of the bridge pipe 4 vertically downwards; the piston rod 1 is sleeved in the sleeve 12 in a coaxial manner, the upper end of the piston rod 1 vertically upwards extends out of the bridge pipe 4 and is in linkage connection with the telescopic end of the vertically arranged air cylinder 2, and the lower end of the piston rod 1 vertically downwards extends out of the lower end face of the sleeve 12 and is in threaded connection with the middle position of the inner bottom face of the water storage tank 7 arranged in the gas collecting tube 6. According to the utility model, under the drive of the air cylinder 2, the piston rod 1 drives the water storage tank 7 to vertically move up and down in the gas collecting tube 6, so that the outlet end of the bridge tube 4 is adjusted from being completely below the ammonia water liquid level of the water storage tank 7 to completely exposing the ammonia water liquid level.
Wherein, the length of the sleeve 12 needs to ensure that the lower end of the sleeve 12 is always below the ammonia water level of the water storage tank 7 when the piston rod 1 is at the lower limit position, and the lower end of the sleeve 12 does not contact with the inner bottom surface of the water storage tank 7 when the piston rod 1 is at the upper limit position.
As shown in fig. 1 and 2, a mechanical seal 3 matched with the piston rod 1 is also arranged on the joint of the upper end of the piston rod 1 and the upper end of the sleeve 12 in a coaxial way, and the gas and the liquid in the bridge pipe 4 are prevented from overflowing through the mechanical seal 3.
The stroke positioner 13 is fixedly arranged on an external steel structure bracket of the bridge pipe 4, and the detection end of the stroke positioner is arranged towards the direction of the piston rod 1 and is electrically connected with the cylinder 2; as shown in fig. 1 and 2, three limit detection switches are further arranged on the piston rod 1 at intervals in sequence, and the setting positions of the three limit detection switches are required to be matched with the stroke positioner 13 respectively, so that the lifting positions of the piston rod 1 in the vertical downward movement of 0%, 10% and 100% of strokes are monitored, and the action of the cylinder 2 is controlled. The upper limit position of the piston rod 1 needs to ensure that the outlet end of the bridge pipe 4 is below the ammonia water level of the water storage tank 7, so that the furnace drying and coke pushing operations are facilitated, and the lower limit position of the piston rod 1 needs to ensure that the outlet end of the bridge pipe 4 is completely exposed out of the ammonia water level of the water storage tank 7, so that the coal loading stage is entered.
The water storage tank 7 is of a columnar structure, the diameter of the water storage tank is larger than that of the bridge pipe 4, as shown in figures 1-4, the bottom surface of the water storage tank 7 is an inclined surface parallel to the outlet end of the bridge pipe 4, and one side of the upper end of the bottom surface is one side close to the center direction of the gas collecting pipe 6; the bottom surface of the water storage tank 7 is provided with the bottom door 8 by being embedded in the lower end of the water storage tank along the inclined direction of the water storage tank, the lower end of the bottom door 8 is hinged with the corresponding position of the lower end of the bottom surface of the water storage tank 7 through a pin shaft structure, the upper end of the bottom door 8 is lapped on the corresponding position of the inner bottom surface of the water storage tank 7, the inner bottom surface of the gas collecting tube 6 is also vertically provided with the ejector rod 9 relative to the position of the bottom door 8, and then along with the vertical descending of the piston rod 1, the ejector rod 9 contacts with the bottom door 8 and drives the bottom door 8 to overturn upwards, so that tar and tar residues can be discharged. When the piston rod 1 vertically descends to be less than or equal to 90% of the stroke, the bottom door 8 needs to be ensured to be completely closed; when the attribute of the piston rod 1 is reduced by 100 percent of the stroke, the ejector rod 9 needs to be ensured to fully eject the bottom door 8.
The utility model is also communicated with an ammonia water spraying pipe 10 at the top of the bridge pipe 4 relative to the left side of the sleeve 12, as shown in fig. 1 and 2, ammonia water is sprayed into the bridge pipe 4 through the ammonia water spraying pipe 10, coal gas is sprayed by the ammonia water to form a tar ammonia water mixture and falls into the water storage tank 7, and because tar has higher density than the ammonia water, the tar can be deposited at the bottom of the water storage tank 7. According to the utility model, ammonia water is sprayed, so that the temperature of coal gas is reduced, the lower end of the sleeve 12 is always below the ammonia water level of the water storage tank 7, and the water sealing effect of the piston rod 1 and the coal gas is ensured.
As shown in fig. 1 and 2, a through hole matched with the piston rod sealing ammonia water pipe 11 is also embedded and arranged at the position of the upper part of the sleeve 12 relative to the inner part of the bridge pipe 4, and the through hole is arranged at the opposite side of the ammonia water spraying pipe 10; one end of the piston rod sealing ammonia water pipe 11 is communicated with the inside of the sleeve 12 through a through hole, the other end of the piston rod sealing ammonia water pipe is obliquely upwards extended out of the top of the bridge pipe 4, a valve is further arranged on the piston rod sealing ammonia water pipe 11, ammonia water is sprayed into the sleeve 12 through the piston rod sealing ammonia water pipe 11 to press coal gas, and the coal gas is placed into the sleeve 12 from the lower end; the right side wall of the bridge pipe 4 is also provided with an observation hole 5, and a cover plate is also connected to the observation hole 5 through a bolt in a sealing manner, so that maintenance and operation condition observation can be performed through the observation hole 5.
According to the utility model, the height of the water storage tank 7 is controlled by adjusting the height of the piston rod 1, so that the adjustable fluid area of the coal gas entering the gas collecting tube 6 is realized, and finally, the independent adjustment of the pressure of the carbonization chamber is realized.
The working principle of the utility model is as follows: before coke in the gas coke oven is pushed out, the oven is required to be dried, as shown in fig. 1, at the moment, the cylinder 2 drives the piston rod 1 to be lifted to the upper limit position, and as the water storage tank 7 is in an ammonia water overflow state, the outlet end of the bridge pipe 4 is completely below the ammonia water liquid level, so that gas overflow is avoided; after the coke pushing is finished, after receiving a coal loading preparation signal, the cylinder 2 drives the piston rod 1 to rapidly descend to 10% of travel, a valve on the piston rod sealing ammonia water pipe 11 is opened, and ammonia water enters the water storage tank 7 from the sleeve 12; the cylinder 2 drives the piston rod 1 to continuously descend, when the top rod 9 pushes the bottom door 8 of the water storage tank 7 open, tar and tar residues deposited at the bottom of the water storage tank 7 start to flow out from the bottom door 8, so that the purpose of cleaning tar is achieved, and the water storage tank 7 is prevented from being blocked by the tar due to long-term use; when the piston rod 1 descends to 100% of the stroke, the outlet end of the bridge pipe 4 completely exposes the ammonia water liquid level, the conduction area is the largest at the moment, as shown in fig. 2, coal charging is started, and soot and dust completely enter the gas collecting pipe 6; at this time, the ammonia water amount entering the water storage tank 7 through the piston rod sealing ammonia water pipe 11 and the ammonia water spraying pipe 10 is larger than the draining amount through the bottom door 8, so that the lower end of the sleeve 12 is still below the ammonia water liquid level, even if the lower end of the sleeve 12 is exposed out of the ammonia water liquid level due to poor flow control, the ammonia water sprayed through the piston rod sealing ammonia water pipe 11 can play a role in pressing coal gas, and the coal gas still cannot overflow out of the bridge pipe 4 due to the mechanical seal 3 arranged at the upper part of the sleeve 12; after coal charging is finished, the cylinder 2 drives the piston rod 1 to ascend until the bottom door 8 is completely closed, the carbonization process is started, and the pressure of the bridge pipe 4 reaches a set value by controlling the piston rod 1 to adjust in a descending interval of 0% -90%; and (5) starting the furnace drying after the end of coking, and finishing a periodic action.
The utility model has the beneficial effects that:
(1) Compared with the existing OPR system, the utility model has the advantages of simple structure, sensitive and accurate adjustment, easy tar cleaning, difficult blockage, convenient maintenance and self-cleaning function, thereby reducing the failure rate;
(2) In the coal charging stage, in order to prevent ammonia water and a small amount of coal gas from possibly overflowing from the upper part of the sleeve 12, the double sealing effect of the coal gas can be achieved by arranging the mechanical seal 3 and spraying ammonia gas into the sleeve 12, so that the coal gas is ensured not to overflow from the bridge pipe 4, and the reliability is high.
The above embodiments are merely illustrative of the preferred embodiments of the present utility model, and the present utility model is not limited to the above embodiments, and various modifications and improvements made by those skilled in the art to the technical solutions of the present utility model without departing from the design concept of the present utility model should fall within the protection scope of the present utility model, and the claimed technical content of the present utility model is fully described in the claims.
Claims (10)
1. A piston rod double-seal single-hole carbonization chamber pressure adjusting device is characterized in that: comprises a bridge pipe, a gas collecting pipe, a water storage tank, a sleeve, a piston rod and a cylinder; the inlet end of the bridge pipe is communicated with the side end of the ascending pipe, and the outlet end of the bridge pipe is vertically and downwardly inserted into the upper position of the inner part of the gas collecting pipe after being bent and downwardly inclined; a sleeve is further vertically arranged in the bridge pipe near the middle position of the vertical section side of the bridge pipe, the upper end of the sleeve is in threaded connection or welded connection with the corresponding position of the inner top surface of the bridge pipe, and the lower end of the sleeve vertically extends downwards out of the end face of the outlet end of the bridge pipe; the inner part of the sleeve is also sleeved with a piston rod in a coaxial way, the upper end of the piston rod vertically upwards extends out of the bridge pipe and is in linkage connection with the telescopic end of the cylinder which is vertically arranged, the lower end of the piston rod vertically downwards extends out of the lower end face of the sleeve and is in screw connection with the middle position of the inner bottom surface of the water storage tank which is arranged inside the gas collection pipe, and then the water storage tank is driven by the piston rod to vertically move up and down inside the gas collection pipe under the driving of the cylinder, so that the outlet end of the bridge pipe is adjusted from the position below the ammonia water liquid level of the water storage tank to the position where the ammonia water liquid level is completely exposed.
2. The piston rod double-seal single-hole carbonization chamber pressure adjusting device according to claim 1, wherein: the bridge pipe is connected with the gas collecting pipe through flange screw connection or through tar seal grooves, so that the disassembly and the overhaul are convenient.
3. The piston rod double-sealing single-hole carbonization chamber pressure adjusting device according to claim 2, wherein: the end face of the outlet end of the bridge pipe is an inclined plane, one side of the upper end of the inclined plane is close to the central direction of the gas collecting pipe, the gas collecting pipe is ensured to be positioned in the gas collecting pipe, and then in the coal loading stage, coal gas can come out from one side with short vertical length of the outlet end of the bridge pipe and enter the gas collecting pipe.
4. The piston rod double-seal single-hole carbonization chamber pressure adjusting device according to claim 1, wherein: and a mechanical seal matched with the piston rod is also arranged at the joint of the piston rod and the upper end of the sleeve, so that the gas and the liquid in the bridge pipe are prevented from overflowing through the mechanical seal.
5. The piston rod double-seal single-hole carbonization chamber pressure adjusting device according to claim 1, wherein: the length of the sleeve needs to ensure that the lower end of the sleeve is always below the ammonia water liquid level of the water storage tank when the piston rod is at the lower limit position, and the lower end of the sleeve is not contacted with the inner bottom surface of the water storage tank when the piston rod is at the upper limit position.
6. The piston rod double-seal single-hole carbonization chamber pressure adjusting device according to claim 1, wherein: the device also comprises a travel locator and a limit detection switch; the travel positioner is fixedly arranged on an external steel structure bracket of the bridge pipe, and the detection end of the travel positioner is arranged towards the direction of the piston rod and is electrically connected with the cylinder; and three limit detection switches are arranged on the piston rod at intervals in sequence, the setting positions of the three limit detection switches are required to be matched with the stroke positioner respectively, the lifting positions of the piston rod moving 0%, 10% and 100% of the stroke vertically downwards are monitored, and then the action of the cylinder is controlled.
7. The piston rod double-sealing single-hole carbonization chamber pressure adjusting device as claimed in claim 6, wherein: the upper limit position of the piston rod needs to ensure that the outlet end of the bridge pipe is below the ammonia water liquid level of the water storage tank, so that the furnace drying and coke pushing operation can be conveniently performed, and the lower limit position of the piston rod needs to ensure that the outlet end of the bridge pipe is completely exposed out of the ammonia water liquid level of the water storage tank, so that the coal loading stage is entered.
8. The piston rod double-sealing single-hole carbonization chamber pressure adjusting device as claimed in claim 7, wherein: the device also comprises a bottom door and a top rod; the water storage tank is of a columnar structure, the diameter of the water storage tank is larger than that of the bridge pipe, the bottom surface of the water storage tank is an inclined surface parallel to the outlet end of the bridge pipe, and one side of the upper end of the bottom surface of the water storage tank is a side close to the center direction of the gas collecting pipe; the bottom surface of aqua storage tank still follows its incline direction embedding by its lower extreme and is equipped with the bottom door, just the lower extreme of bottom door through the round pin axle structure with the bottom surface lower extreme of aqua storage tank corresponds the position and articulates, the upper end overlap joint of bottom door is in on the interior bottom surface of aqua storage tank corresponds the position, and the interior bottom surface of gas collecting tube still vertically is equipped with the ejector pin for bottom door position department, and then along with the vertical decline of piston rod, the ejector pin contacts and drives the bottom door and upwards overturns, alright discharge tar and tar residue.
9. The piston rod double-sealing single-hole carbonization chamber pressure adjusting device according to claim 8, wherein: when the piston rod vertically descends to be less than or equal to 90% of the stroke, the bottom door needs to be ensured to be completely closed; when the attribute of the piston rod is reduced by 100% of the stroke, the ejector rod needs to be ensured to completely eject the bottom door.
10. The piston rod double-seal single-hole carbonization chamber pressure adjusting device according to claim 1, wherein: the top of the bridge pipe is also communicated with the left side of the sleeve pipe relative to the sleeve pipe, ammonia water is sprayed into the bridge pipe through the ammonia water spraying pipe and falls into the water storage tank, so that the gas temperature is reduced, the lower end of the sleeve pipe is always below the ammonia water liquid level of the water storage tank, and the water sealing effect of the piston rod and the gas is ensured; a through hole matched with the piston rod sealing ammonia water pipe is embedded in the position of the upper part of the sleeve relative to the inner part of the bridge pipe, and the through hole is arranged on the opposite side of the ammonia water spraying pipe; one end of the piston rod sealing ammonia water pipe is communicated with the inside of the sleeve through a through hole, the other end of the piston rod sealing ammonia water pipe obliquely upwards extends out of the top of the bridge pipe, a valve is further arranged on the piston rod sealing ammonia water pipe, ammonia water is sprayed into the sleeve through the piston rod sealing ammonia water pipe to press coal gas, and the coal gas is placed into the sleeve from the lower end; the right side wall of the bridge pipe is further provided with an observation hole, and the observation hole is further connected with a cover plate in a sealing mode through bolts, so that maintenance and operation condition observation can be performed through the observation hole.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322774004.2U CN220867331U (en) | 2023-10-17 | 2023-10-17 | Pressure regulating device of piston rod double-sealing single-hole carbonization chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322774004.2U CN220867331U (en) | 2023-10-17 | 2023-10-17 | Pressure regulating device of piston rod double-sealing single-hole carbonization chamber |
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| Publication Number | Publication Date |
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| CN220867331U true CN220867331U (en) | 2024-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322774004.2U Active CN220867331U (en) | 2023-10-17 | 2023-10-17 | Pressure regulating device of piston rod double-sealing single-hole carbonization chamber |
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| Country | Link |
|---|---|
| CN (1) | CN220867331U (en) |
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2023
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