CN114111355B - Evaporation type grate cooler - Google Patents
Evaporation type grate cooler Download PDFInfo
- Publication number
- CN114111355B CN114111355B CN202111453728.6A CN202111453728A CN114111355B CN 114111355 B CN114111355 B CN 114111355B CN 202111453728 A CN202111453728 A CN 202111453728A CN 114111355 B CN114111355 B CN 114111355B
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- Prior art keywords
- wall
- fixedly connected
- water
- comb
- cooler
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- 238000001704 evaporation Methods 0.000 title description 8
- 230000008020 evaporation Effects 0.000 title description 8
- 238000001816 cooling Methods 0.000 claims abstract description 30
- 239000002918 waste heat Substances 0.000 claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 75
- 238000003756 stirring Methods 0.000 claims description 33
- 239000012528 membrane Substances 0.000 claims description 28
- 239000000463 material Substances 0.000 claims description 18
- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- 238000005266 casting Methods 0.000 claims description 10
- 238000009826 distribution Methods 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 3
- 238000010992 reflux Methods 0.000 claims 2
- 238000001035 drying Methods 0.000 claims 1
- 238000011084 recovery Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 239000007789 gas Substances 0.000 description 10
- 241000883990 Flabellum Species 0.000 description 6
- 239000000203 mixture Substances 0.000 description 5
- 230000002265 prevention Effects 0.000 description 5
- 230000000149 penetrating effect Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000010791 quenching Methods 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 229920006395 saturated elastomer Polymers 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 238000013019 agitation Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000000151 anti-reflux effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D15/00—Handling or treating discharged material; Supports or receiving chambers therefor
- F27D15/02—Cooling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/02—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
- F22B1/04—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being hot slag, hot residues, or heated blocks, e.g. iron blocks
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Muffle Furnaces And Rotary Kilns (AREA)
Abstract
The invention discloses an evaporative grate cooler, and relates to the technical field of waste heat recovery and utilization of grate coolers of clinker production lines. The utility model provides an evaporative comb formula cooler, including the steam drum, the downcomer, lower header and water-cooling wall device, the below of steam drum is provided with comb cold machine main part, comb cold machine main part includes comb cold machine, the mounting hole has been seted up to the rear portion upside of comb cold machine, the steam drum is in the top of mounting hole, the downcomer, lower header and water-cooling wall device pass the mounting hole and insert in the comb cold machine, the lower surface middle part left and right sides of steam drum all runs through fixed connection downcomer, the lower extreme of downcomer runs through fixed connection lower header, the water-cooling wall device includes the diaphragm wall, the diaphragm wall runs through fixed connection lower header at the one end that is close the lower header, the diaphragm wall runs through fixed connection steam drum at the one end that is kept away from the lower header, this evaporative comb formula cooler improves waste heat recovery's efficiency by a wide margin.
Description
Technical Field
The invention relates to the technical field of waste heat recovery and utilization of a grate cooler of a clinker production line, in particular to an evaporative grate cooler.
Background
The grate cooler is a quench cooler. After entering the cooler from the rotary kiln, the clinker is paved into a material layer with a certain thickness on the grate plate, and the blown cold air passes through the material layer moving on the grate plate in mutually perpendicular directions so as to quench the clinker, so that the clinker can be quenched from 1300-1400 ℃ to below 100 ℃ within a few minutes. Traditional grate cooler waste heat recovery adopts a mode of taking air from the middle part, and the air taken from the middle part of the grate cooler enters an AQC boiler to perform heat convection, generate superheated steam and generate power or heat. The traditional AQC boiler is independent of the grate cooler, utilizes a flue gas pipeline to be connected with the grate cooler, and is large in steel consumption, large in heat dissipation capacity through the flue gas pipeline and the boiler body, and in addition, the inside of the grate cooler is provided with refractory and wear-resistant pouring materials so as to protect the grate cooler package wall, the pouring material density is high, the steel consumption of the supporting structure is large, and the heat dissipation capacity of the grate cooler package wall is large. The membrane water-cooled wall is arranged on the grate cooler package wall to generate superheated steam. The heating surface arranged in the grate cooler can deeply recover waste heat of the grate cooler, so that the heat exchange efficiency is improved, the casting material consumption is reduced, the construction period is shortened, the investment is saved, and the structural load of the grate cooler is reduced.
Disclosure of Invention
The invention aims to improve the efficiency of a cooler, reduce the structural materials of the cooler and recycle heat for a waste heat power generation system, thereby reducing the investment of a clinker production line, improving the energy utilization rate, reducing the production cost and improving the competitiveness of enterprises.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides an evaporation formula comb formula cooler, includes steam drum, downcomer, lower header and water-cooling wall device, the below of steam drum is provided with comb cold machine main part, comb cold machine main part includes comb cold machine, the mounting hole has been seted up to the rear portion upside of comb cold machine, the steam drum is in the top of mounting hole, downcomer, lower header and water-cooling wall device pass the mounting hole and insert in comb cold machine, the lower surface middle part left and right sides of steam drum all runs through fixed connection downcomer, the lower extreme of downcomer runs through fixed connection lower header, the water-cooling wall device includes the diaphragm wall, the diaphragm wall runs through fixed connection lower header at the one end that is close to the lower header, the diaphragm wall runs through fixed connection steam drum at the one end that is kept away from the lower header, the diaphragm wall is arranged behind the hood of comb cold machine main part to the side wall and the ceiling between the surplus wind tuber pipe, the diaphragm wall is formed by steel pipe and band steel welding, the interior surface of diaphragm wall lays the wear-resisting material of pouring, the diaphragm wall is equipped with the backplate and the one side of backplate, the backplate is connected with one side of the fixed connection that is kept away from to the lower side of backplate, the backplate is connected with one side of the fixed connection that the backplate is kept away from, the lower part is connected with the fixed side of the backplate.
Preferably, the front side of the upper port of the grate cooler is fixedly connected with a first air pipe and a kiln head cover in a penetrating manner, the kiln head cover is located below the first air pipe, an air pipe II is arranged at the rear of the kiln head cover, the front end of the air pipe II penetrates through the grate cooler and is inserted into the rear port of the kiln head cover, the lower side wall of the grate cooler is fixedly connected with a cooling layer, the rear end of the cooling layer is fixedly connected with a crushing box, the crushing box is communicated with the grate cooler and the cooling layer, the upper side of the rear part of the grate cooler is fixedly connected with a residual air pipe in a penetrating manner, and the residual air pipe is located at the rear of the mounting port.
Preferably, the steam drum comprises a steam drum column, wherein a guide body is fixedly connected to the lower side of the steam drum column, the guide body is communicated with the inside of the steam drum column, and the center of the guide body protrudes downwards.
Preferably, the descending tube comprises a descending tube wall I, the upper end of the descending tube wall I penetrates through the lowest end of the fixedly connected guide body, the outer side of the descending tube wall I is fixedly connected with a descending tube wall II, the inner side wall of the descending tube wall I is uniformly and fixedly connected with distribution columns in an equidistant manner, and the number of the distribution columns is three.
Preferably, the lower header comprises a side wall, the left side of the side wall is fixedly connected with a main body side wall, an upper cover is arranged above the side wall and the main body side wall, a connecting groove is formed in the middle of the upper surface of the upper cover, and the inner wall of the connecting groove is connected with the lower end of the descending tube.
Preferably, the inside of lateral wall is provided with agitating unit, agitating unit is in the upper half left side position of lateral wall, agitating unit includes the stirring post, the front and back both ends of stirring post correspond fixedly connected with on the inside wall of lateral wall, the even fixedly connected with plectane in outside equidistance of stirring post, the quantity of plectane is four, the place ahead of plectane is provided with the bearing, the inner circle fixed connection stirring post of bearing, the outer lane fixedly connected with rotary drum of bearing, the front end fixedly connected with spring two, the spring two fixedly connected with lateral wall that is in the most front, remaining the plectane of its front end of spring two fixedly connected with, spring two round joints are on stirring post, the even fixedly connected with flabellum of outside front portion equidistance of rotary drum, the flabellum presents the slope form, the even fixedly connected with water plate in outside rear portion equidistance of rotary drum, water plate and horizontal plane are parallel, set up the basin on the anticlockwise surface, basin and the clearance one-to-one of reposition of redundant personnel post.
Preferably, the inside cavity of main part lateral wall, the main part lateral wall has seted up side groove one on the outer wall of that side that is close to agitating unit, the quantity of side groove one is four, four side groove one and the position one-to-one of bearing, impact plate has been cup jointed to the inside of side groove one, impact plate is keeping away from that side fixedly connected with spring one of agitating unit, spring one fixed connection is in the main part lateral wall, four both sides all are provided with the spacer layer around spring one, spacer layer fixed connection is in the inside of main part lateral wall, side groove two has been seted up on the outer wall of that side that is close to agitating unit to the main part lateral wall, side groove two is in side groove one under.
Preferably, the side tank II is provided with a backflow preventing device, the backflow preventing device comprises a backflow preventing pipe, the backflow preventing pipe is fixedly connected with the side tank II, a lower water hole is formed in the lower surface of the backflow preventing pipe, the lower end of the lower water hole is fixedly connected with a lower water pipe, the lower water pipe penetrates through the side wall of the main body side wall far away from the lower water hole and approaches the side wall of the stirring device, a one-way water valve is arranged in the lower water pipe, the left side of the upper inner wall of the backflow preventing pipe is fixedly connected with a first spring plate, the left side of the lower inner wall of the backflow preventing pipe is fixedly connected with a second spring plate, the right side of the upper inner wall of the backflow preventing pipe is fixedly connected with a third spring plate, the right side of the lower inner wall of the backflow preventing pipe is fixedly connected with a fourth spring plate, the first spring plate, the third spring plate and the fourth spring plate are bent and are elastic, the right end of the second spring plate stretches out of the right end of the first spring plate, and the lower water hole is positioned on the left side of the fourth spring plate.
Compared with the prior art, the invention has the beneficial effects that:
(1) According to the evaporative grate cooler, the membrane water wall performs radiation and convection heat exchange in the grate cooler main body, waste heat of the grate cooler main body is deeply recovered, steam yield is increased, and the produced saturated steam can be used for a waste heat power generation system or a heat supply user.
(2) The temperature in the grate cooler main body is reduced, the cooling speed of clinker is accelerated, and the cooling air quantity is reduced.
(3) According to the evaporative grate cooler, the membrane water-cooled wall is additionally arranged in the traditional grate cooler main body, so that the consumption of casting materials and the consumption of steel structure steel of the grate cooler main body are greatly reduced, the construction period is shortened, and the investment is saved.
(4) In the evaporative grate cooler, the waste heat of the grate cooler body is deeply absorbed by the membrane water-cooled wall in the grate cooler body, so that the waste heat recovery efficiency is greatly improved.
(5) The evaporation type grate cooler is provided with the membrane water cooling wall in the grate cooler main body, so that waste heat is effectively recovered, an external waste heat recovery boiler is not needed, and the steel consumption of the waste heat boiler is reduced.
(6) The evaporation type grate cooler is provided with a membrane water cooling wall, and superheated steam is generated. The heating surface arranged in the grate cooler main body can deeply recover waste heat of the grate cooler main body and reduce structural load of the grate cooler main body.
(7) This evaporation formula comb cooler through the setting of steam pocket bottom guide body, avoids a small amount of soda to gather at the side of gas pocket post, can't lead to in the downcomer smoothly, will lead to the steam-water mixture of downcomer to the bottom of guide body for steam circulation's more smooth and easy.
(8) This evaporation formula grate cooler through the setting of reposition of redundant personnel post, will follow the steam that reposition of redundant personnel post whereabouts and divide into four different flows of flow direction, cooperate with agitating unit for the rotary drum drives the flabellum and rotates, makes the inside air current of lateral wall stir, carries out effectual air stirring mixing to the inside of lateral wall.
(9) This evaporation formula comb formula cooler, the rivers that fall in the downcomer can be direct whereabouts on the basin, thereby drive the water board and rotate, owing to the existence of spring two, after rotating to certain angle, owing to the existence of spring two, can drive rotary drum and water board and reverse, the water board of reversing can strike the rivers that fall in the downcomer on the main part lateral wall like this, strike the water droplet of striking the board on the main part lateral wall like this, can make the striking board shake in side tank one, outwards spit out the inside gas of main part lateral wall from anti-return device, finally mix with the residual steam in the lower header, stir the steam like this, help steam temperature reduction.
(10) When the air is blown outwards from the inside of the side wall of the main body through the backflow preventing device, the air passes through the first elastic plate and the second elastic plate, then passes through the third elastic plate and the fourth elastic plate and is blown into the inside of the side wall, and the second elastic plate is designed, so that the air is blown, and meanwhile, steam and water in the side wall enter the backflow preventing pipe through the third elastic plate, the first elastic plate and the second elastic plate are closed, and the steam and water can slide down from the four outer side walls of the elastic plates and fall back into the side wall again from the sewer hole, so that the steam and water diversion of the backflow preventing pipe is completed.
(11) According to the evaporative grate cooler, the second spring plate is arranged, and meanwhile, the second spring plate is longer than the first spring plate in length, so that the second spring plate can be naturally lapped on the fourth spring plate when the first spring plate and the second spring plate are opened, the connection port between the water outlet hole and the gas is plugged, and the gas can enter the side wall as much as possible to finish the stirring work of water vapor.
Drawings
FIG. 1 is a schematic plan view of the structure of the present invention;
FIG. 2 is a schematic view of a water wall apparatus according to the present invention;
FIG. 3 is a schematic plan view of the water wall apparatus of the present invention;
FIG. 4 is a schematic view of a drum of the present invention;
FIG. 5 is a schematic view of a downcomer according to the present invention;
FIG. 6 is a schematic diagram of a lower header of the present invention;
FIG. 7 is a schematic view of an agitation apparatus according to the present invention;
FIG. 8 is a schematic view of a spring according to the present invention;
FIG. 9 is a schematic view of an anti-reflux apparatus according to the present invention.
In the figure: 1. a grate cooler body; 101. a grate cooler; 102. a mounting port; 103. an air pipe I; 104. a kiln head cover; 105. an air pipe II; 106. a cooling layer; 107. a crushing box; 108. a residual air duct; 2. a steam drum; 201. a gas bag column; 202. a guide body; 3. a down pipe; 301. descending the first pipe wall; 302. lowering the second pipe wall; 303. a split column; 4. a lower header; 401. a sidewall; 402. a body sidewall; 403. an upper cover; 404. a connecting groove; 405. a side groove I; 406. an impingement plate; 407. a first spring; 408. a separation layer; 409. a second side groove; 5. an agitation device; 501. stirring the column; 502. a circular plate; 503. a bearing; 504. a rotating drum; 505. a second spring; 506. a fan blade; 507. a water plate; 508. a water tank; 6. a backflow prevention device; 601. a backflow prevention pipe; 602. a water outlet hole; 603. a water supply pipe; 604. a spring plate I; 605. a spring plate II; 606. spring plate III; 607. spring plate IV; 7. a water wall device; 701. a membrane water wall; 702. wear-resistant casting materials; 703. pouring materials; 704. a guard board; 705. structural member.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-9, the present invention provides a technical solution: an evaporative grate cooler comprises a steam drum 2, a down pipe 3, a lower header 4 and a water-cooling wall device 7, wherein a grate cooler main body 1 is arranged below the steam drum 2, the grate cooler main body 1 comprises a grate cooler 101, an installation opening 102 is formed in the upper side of the rear part of the grate cooler 101, in order to ensure a certain gravity difference, the steam drum 2 is arranged above the installation opening 102, the down pipe 3, the lower header 4 and the water-cooling wall device 7 are inserted into the grate cooler 101 through the installation opening 102, the left side and the right side of the middle part of the lower surface of the steam drum 2 penetrate through the down pipe 3 which is fixedly connected, the lower end of the down pipe 3 penetrates through the lower header 4 which is fixedly connected, the water-cooling wall device 7 comprises a membrane water-cooling wall 701, the end of the membrane water-cooling wall 701 close to the lower header 4 penetrates through the lower header 4 which is fixedly connected, the end of the membrane water-cooling wall 701 far away from the lower header 4 penetrates through the steam drum 2, the membrane water-cooled wall 701 is arranged on the side wall and the ceiling between the kiln hood 104 of the grate cooler main body 1 and the residual air duct 108, the heat consumption of a clinker production line is not affected, the membrane water-cooled wall 701 arranged on the ceiling forms an included angle with the horizontal plane so as to ensure the power circulation of working media, the membrane water-cooled wall 701 is formed by welding steel pipes and flat steel, the inner surface of the membrane water-cooled wall 701 is coated with wear-resistant casting materials 702, casting materials 703 are arranged on the outer surface of the membrane water-cooled wall 701, a guard plate 704 is fixedly connected to the outer side of the casting materials 703, one end of the membrane water-cooled wall 701, which is contacted with the lower header 4, penetrates through the guard plate 704, the guard plate 704 is fixedly connected with the lower header 4 on one side close to the lower header 4, the lower end of the guard plate 704 is fixedly connected with a structural member 705, the structural member 705 is connected with the lower side wall of the grate cooler 101, saturated water in the steam drum 2 enters the lower header 4 through a descending pipe 3, and after the saturated water is mixed and distributed in the lower header 4, into a membrane water wall 701 disposed inside the grate cooler body 1.
The front side of the upper port of the grate cooler 101 is fixedly connected with a first air pipe 103 and a kiln hood 104 in a penetrating manner, the kiln hood 104 is positioned below the first air pipe 103, an air pipe II 105 is arranged at the rear of the kiln hood 104, the front end of the air pipe II 105 penetrates through the grate cooler 101 and is inserted into the rear port of the kiln hood 104, a cooling layer 106 is fixedly connected to the lower side wall of the grate cooler 101, the rear end of the cooling layer 106 is fixedly connected with a crushing box 107, the crushing box 107 is communicated with the grate cooler 101 and the cooling layer 106, the upper side of the rear part of the grate cooler 101 is fixedly connected with a residual air pipe 108 in a penetrating manner, the residual air pipe 108 is positioned at the rear of the mounting port 102, in order to quench clinker, cold air is blown into the grate cooler 101 through a plurality of cooling fans in the cooling layer 106, after passing through a clinker material layer, the air temperature rises sharply, and meanwhile, a large amount of physical sensible heat of clinker is still available, and a membrane water-cooled wall 701 arranged inside the grate cooler 101 absorbs sensible heat of the hot air and the clinker through radiation and convection heat, so that a steam-water mixture is produced and enters the bag 2.
The steam pocket 2 comprises a steam pocket column 201, a guide body 202 is fixedly connected to the lower side of the steam pocket column 201, the guide body 202 is communicated with the inside of the steam pocket column 201, and the center of the guide body 202 protrudes downwards.
The descending tube 3 comprises a descending tube wall I301, the upper end of the descending tube wall I301 penetrates through the lowest end of the fixedly connected guide body 202, the outer side of the descending tube wall I301 is fixedly connected with a descending tube wall II 302, the inner side wall of the descending tube wall I301 is uniformly and fixedly connected with distribution columns 303 at equal intervals, and the number of the distribution columns 303 is three.
The lower header 4 includes lateral wall 401, and the left side fixedly connected with main part lateral wall 402 of lateral wall 401 is provided with upper cover 403 above lateral wall 401 and the main part lateral wall 402, and spread groove 404 has been seted up at the upper surface middle part of upper cover 403, and the inner wall of spread groove 404 is connected behind the lower extreme of downcomer 3.
The inside of lateral wall 401 is provided with agitating unit 5, agitating unit 5 is in the upper half left side position of lateral wall 401, agitating unit 5 includes stirring post 501, the front and back both ends of stirring post 501 correspond fixed connection on the inside wall of lateral wall 401, the even fixedly connected with plectane 502 of outside equidistance of stirring post 501, the quantity of plectane 502 is four, the place ahead of plectane 502 is provided with bearing 503, the inner circle fixed connection stirring post 501 of bearing 503, the outer lane fixed connection rotary drum 504 of bearing 503, the front end fixedly connected with spring II 505 of rotary drum 504, the plectane 502 of the front end of spring II 505 fixed connection lateral wall 401 is in the most, the round plate 502 of the other spring II fixed connection front end, spring II 505 round connection is on stirring post 501, the even fixedly connected with flabellum 506 of outside front portion equidistance of rotary drum 504, flabellum 506 presents the slope form, the even fixedly connected with water plate 507 of outside rear portion equidistance of rotary drum 504, water plate 507 is parallel with the horizontal plane, water plate 507 has seted up basin 508 on the anticlockwise surface, basin 508 and the clearance one-to-one of reposition of the post 303.
The inside of the side wall 402 of the main body is hollow, the side wall 402 of the main body is provided with side grooves I405 on the outer wall of the side close to the stirring device 5, the number of the side grooves I405 is four, the four side grooves I405 are in one-to-one correspondence with the positions of the bearings 503, the inside of the side groove I405 is sleeved with an impact plate 406, the impact plate 406 is fixedly connected with a spring I407 on the side far away from the stirring device 5, the spring I407 is fixedly connected in the side wall 402 of the main body, the front side and the rear side of the four spring I407 are respectively provided with a separation layer 408, the separation layers 408 are fixedly connected in the side wall 402 of the main body, the side wall 402 of the main body is provided with side grooves II 409 on the outer wall of the side close to the stirring device 5, and the side grooves II 409 are positioned right below the side grooves I405.
The side tank II 409 is provided with a backflow preventing device 6, the backflow preventing device 6 comprises a backflow preventing pipe 601, the backflow preventing pipe 601 is fixedly connected with the side tank II 409, a water drain hole 602 is formed in the lower surface of the backflow preventing pipe 601, the lower end of the water drain hole 602 is fixedly connected with a water drain pipe 603, the water drain pipe 603 penetrates through the side wall 402 of the main body far away from the water drain hole 602 and approaches the side wall of the stirring device 5, a one-way water valve is arranged in the water drain pipe 603, water flow can only flow from the water drain hole 602 to the inside of the side wall 401, the left side of the upper inner wall of the backflow preventing pipe 601 is fixedly connected with a spring plate I604, the left side of the lower inner wall of the backflow preventing pipe 601 is fixedly connected with a spring plate II 605, the right side of the upper inner wall of the backflow preventing pipe 601 is fixedly connected with a spring plate III 606, the lower inner wall right side of the backflow preventing pipe 601 is fixedly connected with a spring plate IV 607, the spring plate I604, the spring plate II 605, the spring plate III 606 and the spring plate IV 607 are bent towards the center of the backflow preventing pipe 601 and all have elasticity, the right end of the spring plate II 605 stretches out of the spring plate I604, and the lower end of the water drain hole is located at the left side of the spring plate IV 607.
Working principle:
the first step: a membrane water wall is provided in the grate cooler 101 to generate superheated steam. The heating surface arranged in the grate cooler main body 1 deeply recovers waste heat of the grate cooler main body 1, quenches clinker, blows cold air into the grate cooler main body 1 through a plurality of cooling fans of the cooling layer 106, rapidly increases the air temperature after passing through a clinker layer, simultaneously has a large amount of physical sensible heat of the clinker, absorbs the sensible heat of the hot air and the clinker through radiation and convection heat exchange of a membrane water wall 701 arranged in the grate cooler 101, thereby generating a steam-water mixture, entering a steam drum 2, improving heat exchange efficiency, reducing casting material consumption, shortening construction period, saving investment and reducing structural load of the grate cooler.
And a second step of: through the arrangement of the guide body 202 at the bottom of the steam drum 2, a small amount of steam is prevented from accumulating at the side edge of the steam drum column 201, and cannot be smoothly led into the down tube 3, and the steam-water mixture led into the down tube 3 is led to the bottom of the guide body 202, so that steam circulation is smoother.
And a third step of: through the setting of reposition of redundant personnel post 303, divide into four different flows of steam that will follow reposition of redundant personnel post 303 whereabouts, cooperate with agitating unit 5 for rotary drum 504 drives flabellum 506 rotation, makes the inside air current of lateral wall 401 stir, carries out effectual air stirring mixing to the inside of lateral wall 401.
Fourth step: the water flow falling from the downcomer 3 directly falls on the water tank 508, so that the water plate 507 is driven to rotate, and after the water plate rotates to a certain angle, the drum 504 and the water plate 507 are driven to rotate reversely due to the existence of the second spring 505, so that the water plate 507 reversely strikes the water flow falling from the downcomer 3 on the side wall 402 of the main body, and the water drop striking the impact plate 406 on the side wall 402 of the main body can make the impact plate 406 vibrate in the side tank I405, so that the gas in the side wall 402 of the main body is outwards spit out from the backflow preventing device 6 and finally mixed with the residual water vapor in the lower header 4, and the water vapor is stirred to help the water vapor to reduce the temperature.
Fifth step: when the gas is blown outwards from the inside of the side wall 402 of the main body through the backflow prevention device 6, the gas firstly passes through the first elastic plate 604 and the second elastic plate 605, then passes through the third elastic plate 606 and the fourth elastic plate 607 and is blown into the inside of the side wall 401, and the design of the second elastic plate 605 is adopted, so that the steam and water in the side wall 401 enters into the backflow prevention pipe 601 even though the third elastic plate 606 is blown out, the first elastic plate 604 and the second elastic plate 605 are closed, the steam and water can slide down from the outer side wall of the fourth elastic plate 607, and then is poured back into the side wall 401 from the sewer hole 602, and the waterproof steam and the diversion of the backflow prevention pipe 601 is completed.
Sixth step: through the second spring plate 605, since the second spring plate 605 is longer than the first spring plate 604, when the first spring plate 604 and the second spring plate 605 are opened, the second spring plate 605 will naturally overlap the fourth spring plate 607, so that the connection port between the water outlet 602 and the gas is blocked, and the gas can enter the side wall 401 as much as possible to finish the water vapor stirring operation.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides an evaporative comb formula cooler, includes steam drum (2), downcomer (3), lower header (4) and water-cooled wall device (7), the below of steam drum (2) is provided with comb cold machine main part (1), comb cold machine main part (1) are including comb cold machine (101), install mouth (102) have been seted up to the rear portion upside of comb cold machine (101), steam drum (2) are in the top of install mouth (102), downcomer (3), lower header (4) and water-cooled wall device (7) pass install mouth (102) and insert comb cold machine (101), its characterized in that: the left side and the right side of the middle part of the lower surface of the steam drum (2) are respectively penetrated and fixedly connected with a downcomer (3), the lower end of the downcomer (3) is penetrated and fixedly connected with a lower header (4), the water-cooled wall device (7) comprises a membrane water-cooled wall (701), the membrane water-cooled wall (701) is penetrated and fixedly connected with the lower header (4) at the end close to the lower header (4), the membrane water-cooled wall (701) is penetrated and fixedly connected with the steam drum (2) at the end far away from the lower header (4), the membrane water-cooled wall (701) is arranged at the side wall and the ceiling between the hood (104) of the grate cooler main body (1) and the residual air duct (108), the membrane water-cooled wall (701) is formed by welding a steel pipe and a flat steel, the inner surface of the membrane water-cooled wall (701) is coated with a wear-resistant casting material (702), the outer surface of the membrane water-cooled wall (701) is coated with a casting material (703), the outer side of the casting material (703) is fixedly connected with a guard plate (704), one end of the membrane water-cooled wall (701) is contacted with the lower header (4) and is penetrated and fixedly connected with the guard plate (704) at one side close to the lower header (4), the side surface of the lower end of the guard plate (704) far away from the lower header (4) is fixedly connected with a structural member (705).
2. The evaporative grate cooler of claim 1, wherein: the utility model discloses a kiln for drying a waste heat of a kiln, including kiln head cover (104) and kiln cooler (101), upper port front side of comb cooler (101) runs through fixedly connected with tuber pipe (103) and kiln head cover (104), kiln head cover (104) are in the below of tuber pipe (103), the rear of kiln head cover (104) is provided with tuber pipe two (105), in the rear port of kiln head cover (104) is run through comb cooler (101) in the front end of tuber pipe two (105), fixedly connected with cooling layer (106) on the lower lateral wall of comb cooler (101), the rear end fixedly connected with broken case (107) of cooling layer (106), broken case (107) and comb cooler (101) and cooling layer (106) intercommunication, the rear upper side of comb cooler (101) runs through fixedly connected with surplus wind tuber pipe (108), surplus wind tuber pipe (108) are in the rear of installing port (102).
3. The evaporative grate cooler of claim 1, wherein: the steam pocket (2) comprises a steam pocket column (201), a guide body (202) is fixedly connected to the lower side of the steam pocket column (201), the guide body (202) is communicated with the inside of the steam pocket column (201), and the center of the guide body (202) protrudes downwards.
4. A evaporative grate cooler as claimed in claim 3 wherein: the descending tube (3) comprises a descending tube wall I (301), the upper end of the descending tube wall I (301) penetrates through the lowest end of the fixedly connected guide body (202), the outer side of the descending tube wall I (301) is fixedly connected with a descending tube wall II (302), the inner side wall of the descending tube wall I (301) is uniformly and fixedly connected with distribution columns (303) at equal intervals, and the number of the distribution columns (303) is three.
5. The evaporative grate cooler of claim 4, wherein: the lower header (4) comprises a side wall (401), a main body side wall (402) is fixedly connected to the left side of the side wall (401), an upper cover (403) is arranged above the side wall (401) and the main body side wall (402), a connecting groove (404) is formed in the middle of the upper surface of the upper cover (403), and the inner wall of the connecting groove (404) is connected with the rear end of the lower pipe (3).
6. The evaporative grate cooler of claim 5, wherein: the inside of lateral wall (401) is provided with agitating unit (5), agitating unit (5) are in the upper half left side position of lateral wall (401), agitating unit (5) are including stirring post (501), the front and back both ends of stirring post (501) correspond fixed connection on the inside wall of lateral wall (401), evenly fixed connection plectane (502) in the outside equidistance of stirring post (501), the quantity of plectane (502) is four, the place ahead of plectane (502) is provided with bearing (503), the inner circle fixed connection stirring post (501) of bearing (503), the outer lane fixedly connected with rotary drum (504) of bearing (503), the front end fixedly connected with spring two (505) of rotary drum (504), spring two (505) fixed connection lateral wall (401) in the foremost, remaining plectane (502) of spring two (505) fixed connection its front end, the outside equidistance round connection of stirring post (501), evenly fixed connection in the outside front portion of rotary drum (504) is provided with bearing (503), inner circle fixed connection stirring post (506) is provided with fan blade (506), evenly connected with fan blade (506) in the horizontal plane (507) is parallel with the horizontal plane (507), the water tanks (508) are in one-to-one correspondence with the gaps of the diversion columns (303).
7. The evaporative grate cooler of claim 6, wherein: the inside cavity of main part lateral wall (402), main part lateral wall (402) has seted up side groove one (405) on the side outer wall that is close to stirring device (5), the quantity of side groove one (405) is four, four side groove one (405) and the position one-to-one of bearing (503), impact plate (406) have been cup jointed to the inside of side groove one (405), impact plate (406) are keeping away from the side fixedly connected with spring one (407) of stirring device (5), spring one (407) fixed connection is in main part lateral wall (402), and four the front and back both sides of spring one (407) all are provided with separating layer (408), separating layer (408) fixed connection is in the inside of main part lateral wall (402), side groove two (409) have been seted up on the side outer wall that is close to stirring device (5) in main part lateral wall, side groove two (409) are in side groove one (405) under.
8. The evaporative grate cooler of claim 7, wherein: be provided with in side tank two (409) and prevent reflux unit (6), prevent reflux unit (6) including preventing back flow (601), prevent back flow (601) fixed connection side tank two (409), prevent down water hole (602) have been seted up to the lower surface of back flow (601), the lower extreme fixedly connected with down water pipe (603) of down water hole (602), down water pipe (603) run through the side wall that main part lateral wall (402) is close stirring device (5) in the one end of keeping away from down water hole (602), the internally mounted of down water pipe (603) has the one-way water valve, the upper inner wall left side fixedly connected with spring plate one (604) of back flow (601), the lower inner wall left side fixedly connected with spring plate two (605) of back flow (601), the upper inner wall right side fixedly connected with spring plate three (606) of back flow (601), the lower inner wall right side fixedly connected with spring plate four (607) of back flow (605), spring plate one (604), spring plate two (605) are in the side of four spring plate one, the left side of back flow (605) is in spring plate one, four spring plate (605) are in down the side of spring plate one side (605).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111453728.6A CN114111355B (en) | 2021-12-01 | 2021-12-01 | Evaporation type grate cooler |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111453728.6A CN114111355B (en) | 2021-12-01 | 2021-12-01 | Evaporation type grate cooler |
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| CN114111355A CN114111355A (en) | 2022-03-01 |
| CN114111355B true CN114111355B (en) | 2024-03-08 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB921523A (en) * | 1959-02-24 | 1963-03-20 | Nordlund Karl Folke | Improvements in a steam generating water tube arrangement, especially adapted for cooling constructional parts or lowering the temperature of hot gases |
| CN101788150A (en) * | 2010-01-26 | 2010-07-28 | 清华大学 | Roller fire grate garbage incinerator and preheating combustion method |
| CN104848704A (en) * | 2015-05-18 | 2015-08-19 | 山东耀华能源投资管理有限公司 | Electric furnace flue gas waste heat complete vaporization and heat accumulation type recovery system and working method thereof |
-
2021
- 2021-12-01 CN CN202111453728.6A patent/CN114111355B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB921523A (en) * | 1959-02-24 | 1963-03-20 | Nordlund Karl Folke | Improvements in a steam generating water tube arrangement, especially adapted for cooling constructional parts or lowering the temperature of hot gases |
| CN101788150A (en) * | 2010-01-26 | 2010-07-28 | 清华大学 | Roller fire grate garbage incinerator and preheating combustion method |
| CN104848704A (en) * | 2015-05-18 | 2015-08-19 | 山东耀华能源投资管理有限公司 | Electric furnace flue gas waste heat complete vaporization and heat accumulation type recovery system and working method thereof |
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| CN114111355A (en) | 2022-03-01 |
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