CN114636320B - Descaling steam recovery device for petroleum coke calcination - Google Patents
Descaling steam recovery device for petroleum coke calcination Download PDFInfo
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- CN114636320B CN114636320B CN202210559503.7A CN202210559503A CN114636320B CN 114636320 B CN114636320 B CN 114636320B CN 202210559503 A CN202210559503 A CN 202210559503A CN 114636320 B CN114636320 B CN 114636320B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28B—STEAM OR VAPOUR CONDENSERS
- F28B1/00—Condensers in which the steam or vapour is separate from the cooling medium by walls, e.g. surface condenser
- F28B1/02—Condensers in which the steam or vapour is separate from the cooling medium by walls, e.g. surface condenser using water or other liquid as the cooling medium
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28B—STEAM OR VAPOUR CONDENSERS
- F28B9/00—Auxiliary systems, arrangements, or devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G1/00—Non-rotary, e.g. reciprocated, appliances
- F28G1/12—Fluid-propelled scrapers, bullets, or like solid bodies
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Abstract
The invention belongs to the field of petroleum coke calcination equipment, and relates to a descaling steam recovery device for petroleum coke calcination, which comprises: steam cooling tank, coolant liquid pipeline, steam reposition of redundant personnel mechanism, first trachea, second trachea and reciprocal board of striking off, coolant liquid pipeline sets up in steam cooling tank, and it has the coolant liquid to add in the coolant liquid pipeline, and reciprocal board slip of striking off sets up on coolant liquid pipeline, and the outer lane of reciprocal board of striking off contacts with the inner wall of steam cooling tank, and reciprocal board of striking off can carry out the axial slip between steam cooling tank and coolant liquid pipeline, steam reposition of redundant personnel mechanism sets up the side at steam cooling tank, and first trachea and second trachea's one end intercommunication to steam reposition of redundant personnel mechanism, and first trachea and second trachea other end communicate respectively to the both ends of steam cooling tank. According to the invention, the inflow direction of steam is switched in a reciprocating manner through the steam flow dividing mechanism, so that the reciprocating scraping plate is pushed to scrape impurities remained on the cooling liquid pipeline.
Description
Technical Field
The invention relates to the field of petroleum coke calcination equipment, in particular to a descaling steam recovery device for petroleum coke calcination.
Background
Petroleum coke is a black or dark gray hard solid petroleum product with metallic luster and porosity, and is a carbon substance formed by granular, columnar or needle-shaped crystals of tiny graphite. The petroleum coke component is hydrocarbon, carbon is 90-97%, hydrogen is 1.5-8%, and also contains nitrogen, chlorine, sulfur and heavy metal compound, the petroleum coke needs to be calcined at high temperature in the processing course, and the flue gas generated by the petroleum coke needs to be treated by a liquid absorption method in the calcining course.
Chinese patent with publication number CN114225660A in the prior art provides a steam recovery device for petroleum coke calcination, which can remove scale, and can recover the generated steam, avoiding water resource waste, and avoiding noise and pollution caused by steam discharge.
But can substitute a large amount of oil gas or tiny particulate matter in the steam that produces when carrying out the flue gas that liquid absorption method produced in to petroleum coke calcination process and absorbing, tiny particulate matter can adhere on cooling tube after steam gets into recovery plant, after a period of operation, can remain a large amount of adsorbates on the cooling tube, consequently lead to the subsequent condensation efficiency of equipment to reduce, lead to the unable effective diffusion of the inside temperature of equipment simultaneously.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: in order to solve the problem that steam recovery equipment in the prior art cannot be cleaned, the invention provides a descaling steam recovery device for petroleum coke calcination, which comprises a steam cooling tank, a coolant pipeline, a steam shunting mechanism, a first gas branch pipe, a second gas branch pipe and a reciprocating scraping plate, the cooling liquid pipeline is arranged in the steam cooling tank, cooling liquid is filled in the cooling liquid pipeline, the reciprocating scraping plate is arranged on the cooling liquid pipeline in a sliding manner, the outer ring of the reciprocating scraping plate is in contact with the inner wall of the steam cooling tank, the reciprocating scraping plate can axially slide between the steam cooling tank and the cooling liquid pipeline, the steam distribution mechanism is arranged at the side end of the steam cooling tank, one ends of the first gas distribution pipe and the second gas distribution pipe are communicated to the steam distribution mechanism, and the other ends of the first gas distribution pipe and the second gas distribution pipe are communicated to two ends of the steam cooling tank respectively.
In some embodiments, steam reposition of redundant personnel mechanism is including reposition of redundant personnel casing, reposition of redundant personnel air inlet, reposition of redundant personnel electric jar and reposition of redundant personnel guide bar, be provided with the spacing chamber of reposition of redundant personnel in the reposition of redundant personnel casing, the interval is provided with first reposition of redundant personnel chamber and second reposition of redundant personnel chamber on the spacing chamber of reposition of redundant personnel, first trachea and first reposition of redundant personnel chamber intercommunication, second trachea and second reposition of redundant personnel chamber intercommunication, the reposition of redundant personnel air inlet sets up on the reposition of redundant personnel casing and communicates each other with the spacing chamber of reposition of redundant personnel, and the reposition of redundant personnel guide bar slides and sets up at the spacing intracavity of reposition of redundant personnel, and the interval is provided with first closing block and second closing block on the reposition of redundant personnel guide bar, the reposition of redundant personnel electric jar sets up the side at the reposition of redundant personnel casing, and reposition of redundant personnel electric jar transmission is connected to the reposition of redundant personnel guide bar.
In some embodiments, air intake chambers are arranged at two ends of the steam cooling tank, a plurality of one-way air intake valves are arranged on the periphery of the air intake chamber at equal intervals, the one-way air intake valves are communicated with the steam cooling tank, and the first air distribution pipe and the second air distribution pipe are respectively communicated with the air intake chambers on two sides of the steam cooling tank.
In some embodiments, a liquid guiding piston is arranged on the inner side of the cooling liquid pipeline, a cooling liquid storage tank and a liquid guiding electric cylinder are arranged at the side end of the steam cooling tank, the liquid guiding electric cylinder is in transmission connection with the liquid guiding piston, two return pipelines are respectively arranged on two sides of the cooling liquid storage tank, and the two return pipelines are communicated with two sides of the cooling liquid pipeline.
In some embodiments, the return line includes a communicating pipe, a liquid return pipe, and a liquid outlet pipe, the liquid return pipe communicates with a position above the coolant storage tank, a check valve is disposed in the liquid return pipe to control the unidirectional flow of the coolant into the coolant storage tank, the liquid outlet pipe communicates with a position below the coolant storage tank, one end of the communicating pipe communicates with the liquid return pipe and the liquid outlet pipe, a check valve is disposed in the liquid outlet pipe to control the unidirectional flow of the coolant into the communicating pipe, and the other end of the communicating pipe communicates with the coolant pipeline.
In some embodiments, the cooling liquid pipeline is provided with a plurality of cooling liquid pipelines, the plurality of cooling liquid pipelines are arranged in the steam cooling tank, pipeline communicating cavities are arranged at two ends of the plurality of cooling liquid pipelines, the pipeline communicating cavities are communicated with the plurality of cooling liquid pipelines, notches which are identical to the cooling liquid pipelines in number and are attached to the reciprocating scraping plate are arranged on the reciprocating scraping plate, a liquid guiding piston is arranged in each cooling liquid pipeline, and the plurality of liquid guiding pistons are connected to the liquid guiding electric cylinder.
In some embodiments, the groove periphery of the reciprocating scraping plate for passing through the cooling liquid pipeline is provided with a convex scraping angle.
In some embodiments, a drain valve is disposed on a lower end surface of the steam cooling tank, and a side end of the drain valve is communicated to the drain pipe and the drain pump.
In some embodiments, the side wall of the coolant storage tank is provided with heat radiating fins.
The invention has the beneficial effects that:
firstly, the steam cooling tank is provided with the steam flow dividing mechanism to control steam to enter the steam cooling tank through the first gas distribution pipe or the second gas distribution pipe respectively, and the reciprocating scraping plate is driven by the power of the steam to scrape impurities adhered to the outer wall of the cooling liquid pipeline, so that the stable operation of equipment can be ensured.
Secondly, the liquid guide piston is arranged in the cooling liquid pipeline, the liquid guide piston is driven by the liquid guide electric cylinder to be driven in the cooling liquid pipeline, high-temperature cooling liquid is pushed out of the cooling liquid pipeline through the return pipeline and enters the cooling liquid storage tank by the liquid guide piston, and meanwhile low-temperature cooling liquid in the cooling liquid storage tank is pumped into the cooling liquid pipeline through the return pipeline in the driving process of the liquid guide piston, so that the cooling liquid in the cooling liquid pipeline is replaced in a reciprocating mode, continuous and efficient condensation of steam in the continuous operation process of the equipment is guaranteed, the high-temperature cooling liquid enters the steam cooling tank to be cooled, and the high-temperature cooling liquid enters the cooling liquid pipeline to be recycled in the subsequent driving process of the liquid guide electric cylinder.
Thirdly, the invention arranges a return pipeline on the cooling liquid storage tank, the high-temperature cold area liquid output from the cooling liquid pipeline enters the upper position of the cooling liquid storage tank through the return pipeline, and the cold area liquid at the low temperature inside the cooling liquid storage tank is output to the cooling liquid pipeline.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a top view of the present invention;
FIG. 3 is a flow diagram of steam in the steam splitting mechanism of the present invention;
FIG. 4 is a flow diagram of steam in the steam splitting mechanism of the present invention;
FIG. 5 is a cross-sectional view of the present invention at the vapor cooling canister;
FIG. 6 is a first cross-sectional view of the coolant line of the present invention;
FIG. 7 is a second cross-sectional view of the coolant line of the present invention;
FIG. 8 is a schematic view showing the state of communication between the vapor cooling tank and the coolant storage tank according to the present invention;
FIG. 9 is a schematic view showing the communication state between the vapor cooling tank and the drain valve in the present invention;
fig. 10 is a schematic view of the mechanism of the reciprocating scraping plate of the present invention.
Reference numerals: 1. a steam cooling tank; 2. a coolant line; 21. a liquid-conducting piston; 22. a coolant storage tank; 23. a liquid guiding electric cylinder; 24. a return line; 241. a communicating pipe; 242. a liquid return pipe; 243. a liquid outlet pipe; 25. the pipeline is communicated with the cavity; 3. a steam diversion mechanism; 31. a diverter housing; 32. a flow-splitting air inlet; 33. a shunt electric cylinder; 34. a shunt guide rod; 341. a first closing block; 342. a second closing block; 35. a shunt limit cavity; 351. a first diversion chamber; 352. a second diversion cavity; 4. a first gas distribution pipe; 5. a second gas branch pipe; 6. a reciprocating scraping plate; 61. scraping an angle; 7. an air intake compartment; 71. a one-way intake valve; 8. a drain valve; 81. a drain pipe; 82. and (7) draining the pump.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention.
In the present embodiment, as shown in fig. 1 to 10, a descaling steam recovery apparatus for petroleum coke calcination comprises a steam cooling tank 1, a coolant pipeline 2, a steam flow dividing mechanism 3, a first gas branch pipe 4, a second gas branch pipe 5 and a reciprocating scraping plate 6, the cooling liquid pipeline 2 is arranged in the steam cooling tank 1, cooling liquid is filled in the cooling liquid pipeline 2, the reciprocating scraping plate 6 is arranged on the cooling liquid pipeline 2 in a sliding manner, the outer ring of the reciprocating scraping plate 6 is contacted with the inner wall of the steam cooling tank 1, the reciprocating scraping plate 6 can slide between the steam cooling tank 1 and the cooling liquid pipeline 2, the steam distribution mechanism 3 is arranged at the side end of the steam cooling tank 1, one ends of the first gas distribution pipe 4 and the second gas distribution pipe 5 are communicated with the steam distribution mechanism 3, and the other ends of the first gas distribution pipe 4 and the second gas distribution pipe 5 are respectively communicated with two ends of the steam cooling tank 1;
when the steam cooling device is used, cooling liquid is injected into a cooling liquid pipeline 2, then steam is communicated into a steam flow dividing mechanism 3, the steam is controlled by the steam flow dividing mechanism 3 to enter a first steam dividing pipe 4 or a second steam dividing pipe 5, when the steam enters a space between a steam cooling tank 1 and the cooling liquid pipeline 2 through the first steam dividing pipe 4, a reciprocating scraping plate 6 is pushed to the direction of the second steam dividing pipe 5 through the steam, impurities on the outer wall of the cooling liquid pipeline 2 are scraped while the reciprocating scraping plate 6 slides, so that the phenomenon that the subsequent cold condensation effect of the steam is influenced by the adhesion of the impurities and the adhesive substances in the steam on the cooling liquid pipeline 2 can be prevented, the steam is condensed into water after entering the steam cooling tank 1 and contacting with the cooling liquid pipeline 2, the water in the steam cooling tank 1 is discharged after a period of condensation, then the steam flow dividing mechanism 3 is switched to control the steam to enter the second steam dividing pipe 5, steam gets into steam cooling tank 1 through second gas-distributing pipe 5 this moment and strikes off board 6 through promoting reciprocal and remove to 4 directions of first gas-distributing pipe, strike off the impurity of adhesion on coolant liquid pipeline 2 once more through reciprocal striking off board 6, utilize steam reposition of redundant personnel mechanism 3 control steam to get into wherein cooling from steam cooling tank 1's both sides in proper order, can effectively equalize the temperature at steam cooling tank 1 both ends, prevent that the one end temperature that is close to the steam inlet port in the cooling pipeline from appearing is higher than the one side of principle steam inlet port, thereby lead to the condensation efficiency of equipment to reduce, and through strike off the impurity that board 6 struck off dropped reciprocal and together discharge when follow-up discharge coolant liquid, the staff can filter the back retrieval and utilization to the coolant liquid this moment.
Preferably, the steam splitting mechanism 3 includes a splitting housing 31, a splitting air inlet 32, a splitting electric cylinder 33 and a splitting guide rod 34, a splitting limit cavity 35 is provided in the splitting housing 31, a first splitting cavity 351 and a second splitting cavity 352 are provided at intervals on the splitting limit cavity 35, a first splitting pipe 4 is communicated with the first splitting cavity 351, a second splitting pipe 5 is communicated with the second splitting cavity 352, the splitting air inlet 32 is provided on the splitting housing 31 and is communicated with the splitting limit cavity 35, the splitting guide rod 34 is slidably provided in the splitting limit cavity 35, a first sealing block 341 and a second sealing block 342 are provided at intervals on the splitting guide rod 34, the splitting electric cylinder 33 is provided at a side end of the splitting housing 31, and the splitting electric cylinder 33 is drivingly connected to the splitting guide rod 34;
when steam is required to enter the first gas distribution pipe 4 through the steam distribution mechanism 3, the steam is communicated to the distribution gas inlet 32, the distribution electric cylinder 33 is started, the distribution guide rod 34 is pushed to move through the distribution electric cylinder 33, the second sealing block 342 on the distribution guide rod 34 is located at the second distribution cavity 352, and at the moment, the steam enters through the distribution gas inlet 32 and sequentially passes through the distribution limiting cavity 35, the first distribution cavity 351 and the first gas distribution pipe 4;
when steam is controlled to enter the second steam dividing pipe 5 through the steam dividing mechanism 3, the electric dividing cylinder 33 is started, the electric dividing cylinder 33 pushes the dividing guide rod 34 to move, the first sealing block 341 on the dividing guide rod 34 is located at the first dividing cavity 351, and at the moment, the steam enters through the dividing air inlet 32 and sequentially passes through the dividing limiting cavity 35, the second dividing cavity 352 and the second steam dividing pipe 5.
Preferably, both ends of steam cooling tank 1 set up air intake chamber 7, the week of air intake chamber 7 is equidistant to be provided with a plurality of one-way admission valve 71, one-way admission valve 71 and steam cooling tank 1 intercommunication, first trachea 4 and second trachea 5 communicate with air intake chamber 7 of steam cooling tank 1 both sides respectively, through air intake chamber 7 with the steam of first trachea 4 and the input of second trachea 5 all with carry to steam cooling tank 1 to make steam can be even with the cooling liquid pipeline 2 contact cooling, produce even thrust drive reciprocal scraping plate 6 and slide on cooling liquid pipeline 2 in the even entering steam cooling tank 1 of steam through air intake chamber 7 control steam simultaneously, thereby prevent that the uneven card of atress that reciprocates scraping plate 6 from being unable to remove on cooling liquid pipeline 2.
Preferably, a liquid guiding piston 21 is arranged on the inner side of the cooling liquid pipeline 2, a cooling liquid storage tank 22 and a liquid guiding electric cylinder 23 are arranged at the side end of the steam cooling tank 1, the liquid guiding electric cylinder 23 is in transmission connection with the liquid guiding piston 21, the liquid guiding piston 21 is driven by the liquid guiding electric cylinder 23 to move in the cooling liquid pipeline 2, two return pipelines 24 are respectively arranged on two sides of the cooling liquid storage tank 22, the two return pipelines 24 are communicated with two sides of the cooling liquid pipeline 2, when the temperature of the cooling liquid in the cooling liquid pipeline 2 is too high, the liquid guiding electric cylinder 23 is started, the liquid guiding piston 21 is driven by the liquid guiding electric cylinder 23 to drive in the cooling liquid pipeline 2, the high-temperature cooling liquid is pushed out of the cooling liquid pipeline 2 through the return pipeline 24 and enters the cooling liquid storage tank 22 by the liquid guiding piston 21, and simultaneously the low-temperature cooling liquid in the cooling liquid storage tank 22 is pumped into the cooling liquid pipeline 2 through the return pipeline 24 in the driving process of the liquid guiding piston 21, the cooling liquid in the cooling liquid pipeline 2 is replaced in a reciprocating manner, so that the steam is continuously and efficiently condensed in the continuous operation process of the equipment, the high-temperature cooling liquid enters the steam cooling tank 1 to be cooled, and the high-temperature cooling liquid enters the cooling liquid pipeline 2 to be recycled in the subsequent driving process of the liquid guiding electric cylinder 23.
Preferably, the return line 24 includes a connection pipe 241, a liquid return pipe 242, and a liquid outlet pipe 243, the liquid return pipe 242 is connected to a position above the coolant storage tank 22, the liquid return pipe 242 is provided with a check valve for controlling a unidirectional flow of the coolant into the coolant storage tank 22, the liquid outlet pipe 243 is connected to a position below the coolant storage tank 22, one end of the connection pipe 241 is connected to the liquid return pipe 242 and the liquid outlet pipe 243, the liquid outlet pipe 243 is provided with a check valve for controlling a unidirectional flow of the coolant into the connection pipe 241, the other end of the connection pipe 241 is connected to the coolant pipeline 2, when the coolant flows into the coolant pipeline 2 under the driving of the liquid guide piston 21, the coolant flows from the coolant storage tank 22 to the liquid outlet pipe 243, the connection pipe 241, and the coolant pipeline 2 in sequence, and when the coolant moves to the coolant storage tank 22 under the driving of the liquid guide piston 21, the coolant flows from the coolant pipeline 2 to the connection pipe 241, the liquid return pipe 242, In the liquid return pipe 242 and the cooling liquid storage tank 22, and the returned high-temperature cooling liquid is in the cooling liquid storage tank 22, when the temperature of the cooling liquid is reduced, the cooling liquid gradually flows to the lower side inside the cooling liquid storage tank 22, so that the returned high-temperature cooling liquid is prevented from being newly introduced into the cooling liquid pipeline 2 in the reciprocating circulation process, and the recovery efficiency of the device on the steam is reduced.
Preferably, the plurality of cooling liquid pipelines 2 are arranged in the steam cooling tank 1, two ends of the plurality of cooling liquid pipelines 2 are provided with pipeline communicating cavities 25, the pipeline communicating cavities 25 are communicated with the plurality of cooling liquid pipelines 2, the reciprocating scraping plate 6 is provided with notches which are the same as the cooling liquid pipelines 2 in number and are attached to each other, each cooling liquid pipeline 2 is internally provided with a liquid guide piston 21, the plurality of liquid guide pistons 21 are connected to the liquid guide electric cylinder 23, the liquid guide electric cylinder 23 synchronously drives the plurality of liquid guide pistons 21 to control the circulating flow of the cooling liquid in the cooling liquid pipelines 2, the contact area between the steam entering the steam cooling tank 1 and the cooling liquid pipelines 2 can be increased by arranging the plurality of small cooling liquid pipelines 2, the condensation efficiency of the steam is improved, and the plurality of cooling liquid pipelines 2 are arranged to guide the reciprocating scraping plate 6 more stably, thereby enabling the reciprocating scraping plate 6 to stably slide and scrape impurities on the coolant pipe 2.
Preferably, the periphery of the notch of the reciprocating scraping plate 6 for the coolant pipe 2 to pass through is provided with a convex scraping angle 61, and the scraping efficiency of the reciprocating scraping plate 6 can be improved by the scraping angle 61.
Preferably, the lower end surface of the steam cooling tank 1 is provided with a drain valve 8, the side end of the drain valve 8 is communicated to the drain pipe 81 and the drain pump 82, when the device cools part of the steam, the drain valve 8 is seen, the drain pump 82 is started, the accumulated water in the steam cooling tank 1 is drained through the drain pump 82, and then the drain valve 8 is closed again.
Preferably, the side wall of the cooling liquid storage tank 22 is provided with heat dissipation fins, so that the heat dissipation efficiency of the cooling liquid in the cooling liquid storage tank 22 can be improved through the heat dissipation fins, and the cooling liquid can be rapidly cooled for subsequent circulation.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (8)
1. A descaling steam recovery device for petroleum coke calcination is characterized by comprising a steam cooling tank (1), a coolant pipeline (2), a steam flow dividing mechanism (3), a first gas distributing pipe (4), a second gas distributing pipe (5) and a reciprocating scraping plate (6), wherein the coolant pipeline (2) is arranged in the steam cooling tank (1), coolant is filled in the coolant pipeline (2), the reciprocating scraping plate (6) is arranged on the coolant pipeline (2) in a sliding manner, the outer ring of the reciprocating scraping plate (6) is in contact with the inner wall of the steam cooling tank (1), the reciprocating scraping plate (6) can axially slide between the steam cooling tank (1) and the coolant pipeline (2), the steam flow dividing mechanism (3) is arranged at the side end of the steam cooling tank (1), and one ends of the first gas distributing pipe (4) and the second gas distributing pipe (5) are communicated to the steam flow dividing mechanism (3), the other ends of the first gas distribution pipe (4) and the second gas distribution pipe (5) are respectively communicated with two ends of the steam cooling tank (1), the steam distribution mechanism (3) comprises a distribution shell (31), a distribution gas inlet (32), a distribution electric cylinder (33) and a distribution guide rod (34), a distribution limiting cavity (35) is arranged in the distribution shell (31), a first distribution cavity (351) and a second distribution cavity (352) are arranged on the distribution limiting cavity (35) at intervals, the first gas distribution pipe (4) is communicated with the first distribution cavity (351), the second gas distribution pipe (5) is communicated with the second distribution cavity (352), the distribution gas inlet (32) is arranged on the distribution shell (31) and is communicated with the distribution limiting cavity (35), the distribution guide rod (34) is arranged in the distribution limiting cavity (35) in a sliding mode, a first sealing block (341) and a second sealing block (342) are arranged on the distribution guide rod (34) at intervals, the electric shunting cylinder (33) is arranged at the side end of the shunting shell (31), the electric shunting cylinder (33) is in transmission connection with the shunting guide rod (34), cooling liquid is injected into the cooling liquid pipeline (2), then the steam is communicated into the steam shunting mechanism (3), the steam is controlled to enter the first air distributing pipe (4) or the second air distributing pipe (5) through the steam shunting mechanism (3), when the steam enters the space between the steam cooling tank (1) and the cooling liquid pipeline (2) through the first air distributing pipe (4), the reciprocating scraping plate (6) is pushed to the direction of the second air distributing pipe (5) through the steam, impurities on the outer wall of the cooling liquid pipeline (2) are scraped while the reciprocating scraping plate (6) slides, so that the phenomenon that impurities in the steam are adhered to the cooling liquid pipeline (2) to influence the cold cleaning effect of subsequent steam can be prevented, the steam is contacted with the cooling liquid pipeline (2) and condensed into water after entering the steam cooling tank (1), after a period of condensation, the water in the steam cooling tank (1) is discharged, then the steam flow dividing mechanism (3) is switched to control the steam to enter the second gas dividing pipe (5), at the moment, the steam enters the steam cooling tank (1) through the second gas dividing pipe (5) and moves to the direction of the first gas dividing pipe (4) through pushing the reciprocating scraping plate (6), and the impurities adhered to the cooling liquid pipeline (2) are scraped again through the reciprocating scraping plate (6).
2. The descaling steam recovery device for petroleum coke calcination according to claim 1, wherein the two ends of the steam cooling tank (1) are provided with air intake chambers (7), the circumference of each air intake chamber (7) is provided with a plurality of one-way air intake valves (71) at equal intervals, the one-way air intake valves (71) are communicated with the steam cooling tank (1), and the first air distribution pipe (4) and the second air distribution pipe (5) are respectively communicated with the air intake chambers (7) on the two sides of the steam cooling tank (1).
3. The device for recovering the scale-removing steam used for petroleum coke calcination as claimed in claim 1, wherein the inside of the cooling liquid pipeline (2) is provided with a liquid guiding piston (21), the side end of the steam cooling tank (1) is provided with a cooling liquid storage tank (22) and a liquid guiding electric cylinder (23), the liquid guiding electric cylinder (23) is in transmission connection with the liquid guiding piston (21), two sides of the cooling liquid storage tank (22) are respectively provided with a return pipeline (24), and the two return pipelines (24) are communicated with two sides of the cooling liquid pipeline (2).
4. The device for recovering the scale-removable steam used for petroleum coke calcination as claimed in claim 3, wherein the return line (24) comprises a communicating pipe (241), a liquid return pipe (242) and a liquid outlet pipe (243), the liquid return pipe (242) is communicated with the upper position of the coolant storage tank (22), a check valve for controlling the unidirectional flow of the coolant into the coolant storage tank (22) is arranged in the liquid return pipe (242), the liquid outlet pipe (243) is communicated with the lower position of the coolant storage tank (22), one end of the communicating pipe (241) is communicated with the liquid return pipe (242) and the liquid outlet pipe (243), a check valve for controlling the unidirectional flow of the coolant into the communicating pipe (241) is arranged in the liquid outlet pipe (243), and the other end of the communicating pipe (241) is communicated with the coolant pipeline (2).
5. The descaling steam recovery device for petroleum coke calcination, according to claim 3, wherein the number of the coolant pipes (2) is several, the number of the coolant pipes (2) is arranged in the steam cooling tank (1), two ends of the number of the coolant pipes (2) are provided with pipe communicating cavities (25), the pipe communicating cavities (25) are communicated with the number of the coolant pipes (2), the reciprocating scraping plate (6) is provided with notches which are the same as the number of the coolant pipes (2) and are attached to the notches, each coolant pipe (2) is provided with a liquid guiding piston (21), and the number of the liquid guiding pistons (21) are connected to the liquid guiding electric cylinder (23).
6. The apparatus for recovering scale-removable steam used in petroleum coke calcination as claimed in claim 1, wherein the periphery of the notch of the reciprocating scraping plate (6) for passing the coolant pipe (2) is provided with a convex scraping angle (61).
7. The descaling steam recycling device for petroleum coke calcination as claimed in claim 1, wherein a drain valve (8) is arranged on the lower end surface of the steam cooling tank (1), and the side end of the drain valve (8) is communicated to a drain pipe (81) and a drain pump (82).
8. The apparatus for recovering scale-removable steam used in petroleum coke calcination as claimed in claim 3, wherein the side wall of the coolant storage tank (22) is provided with heat radiating fins.
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| CN202210559503.7A CN114636320B (en) | 2022-05-23 | 2022-05-23 | Descaling steam recovery device for petroleum coke calcination |
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| CN202210559503.7A CN114636320B (en) | 2022-05-23 | 2022-05-23 | Descaling steam recovery device for petroleum coke calcination |
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| CN115930621B (en) * | 2023-02-21 | 2023-05-05 | 山东汇宇新材料有限公司 | Petroleum coke calcines with having steam recovery device of clearance function |
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| CN212158249U (en) * | 2020-04-27 | 2020-12-15 | 泉州市康馨化工科技有限公司 | A high-efficient heat exchanger of chemical industry for chemical production |
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2022
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| JP3122451U (en) * | 2006-03-08 | 2006-06-15 | 洋一郎 山野邉 | In-pipe scale removal device for heat exchanger heat transfer tubes |
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| CN206334367U (en) * | 2016-12-22 | 2017-07-18 | 范亚平 | A kind of low energy consumption scraper evaporator |
| CN210486551U (en) * | 2019-09-18 | 2020-05-08 | 上海上电漕泾发电有限公司 | Efficient condenser for thermal power generating unit cold end system |
| CN212158249U (en) * | 2020-04-27 | 2020-12-15 | 泉州市康馨化工科技有限公司 | A high-efficient heat exchanger of chemical industry for chemical production |
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