CN108120272B - Annular multitube embedded type step steam-spraying activation kiln device and control method and application thereof - Google Patents
Annular multitube embedded type step steam-spraying activation kiln device and control method and application thereof Download PDFInfo
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- CN108120272B CN108120272B CN201711044150.2A CN201711044150A CN108120272B CN 108120272 B CN108120272 B CN 108120272B CN 201711044150 A CN201711044150 A CN 201711044150A CN 108120272 B CN108120272 B CN 108120272B
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- 230000004913 activation Effects 0.000 title claims abstract description 79
- 238000005507 spraying Methods 0.000 title claims abstract description 63
- 238000000034 method Methods 0.000 title claims description 44
- 238000010793 Steam injection (oil industry) Methods 0.000 claims abstract description 64
- 239000000463 material Substances 0.000 claims abstract description 53
- 238000012806 monitoring device Methods 0.000 claims description 61
- 230000003068 static effect Effects 0.000 claims description 44
- 238000004519 manufacturing process Methods 0.000 claims description 29
- 230000001105 regulatory effect Effects 0.000 claims description 29
- 238000007789 sealing Methods 0.000 claims description 24
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 21
- 239000000446 fuel Substances 0.000 claims description 18
- 238000012544 monitoring process Methods 0.000 claims description 9
- 239000000126 substance Substances 0.000 claims description 7
- 230000001276 controlling effect Effects 0.000 claims description 4
- 239000007921 spray Substances 0.000 claims description 4
- 230000003213 activating effect Effects 0.000 claims description 2
- 238000001994 activation Methods 0.000 description 72
- 239000007789 gas Substances 0.000 description 25
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 238000003763 carbonization Methods 0.000 description 6
- 239000004568 cement Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 4
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 4
- 235000011941 Tilia x europaea Nutrition 0.000 description 4
- 229910052804 chromium Inorganic materials 0.000 description 4
- 239000011651 chromium Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 239000004571 lime Substances 0.000 description 4
- 238000001354 calcination Methods 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 239000002737 fuel gas Substances 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000011449 brick Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 238000010025 steaming Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 229910001021 Ferroalloy Inorganic materials 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- MUBKMWFYVHYZAI-UHFFFAOYSA-N [Al].[Cu].[Zn] Chemical compound [Al].[Cu].[Zn] MUBKMWFYVHYZAI-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229910001570 bauxite Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000010000 carbonizing Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 229910000514 dolomite Inorganic materials 0.000 description 1
- 239000010459 dolomite Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009851 ferrous metallurgy Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- UGKDIUIOSMUOAW-UHFFFAOYSA-N iron nickel Chemical compound [Fe].[Ni] UGKDIUIOSMUOAW-UHFFFAOYSA-N 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- -1 metallurgy Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000009856 non-ferrous metallurgy Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 239000011135 tin Substances 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
- F27B7/20—Details, accessories, or equipment peculiar to rotary-drum furnaces
- F27B7/36—Arrangements of air or gas supply devices
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Muffle Furnaces And Rotary Kilns (AREA)
Abstract
An activation kiln device for annular multitube embedded cascade steam injection comprises a kiln body, a kiln head box, a burner, a driving device and a steam injection device. The tail end of the kiln body is connected and communicated with the kiln head box. The burner is arranged on the side wall of the kiln head box. The driving device is connected with the kiln body and drives the kiln body to rotate. An activation chamber is arranged in the kiln body. The steam spraying device comprises a steam conveying main pipe, a steam conveying branch pipe, a steam conveying ring and a steam spraying pipe. The steam conveying ring is arranged on the outer side of the kiln body in a surrounding mode. One end of the steam spraying pipe passes through the kiln body and is communicated with the activation chamber, and the other end of the steam spraying pipe is connected and communicated with the steam conveying ring. The steam conveying ring is connected and communicated with the steam conveying main pipe through a steam conveying branch pipe. According to the activation kiln device, the steam injection port is arranged on the kiln body, the number of the steam injection ports is greatly increased, and the steam is injected in a sectional and independent mode; the contact specific surface area of the material in the kiln and steam is greatly enhanced, so that the activation degree of the product is effectively improved.
Description
Technical Field
The invention relates to an activation kiln device, in particular to an activation kiln device sprayed with steam, a control method and application thereof, and belongs to the field of building equipment.
Background
The rotary kiln, also called rotary calcining kiln, is a large-scale equipment for core industry, and is widely applied to the production industries of building materials, metallurgy, chemical industry, environmental protection and the like. The method has the function of calcining the materials in the kiln by utilizing rotation and internal high temperature, thereby forming the finished ore. Rotary kilns can be classified into cement kilns, metallurgical chemical kilns and lime kilns according to the materials to be treated. The cement kiln is mainly used for calcining cement clinker, and is divided into two main types, namely cement kiln produced by dry method and cement kiln produced by wet method. The metallurgical chemical kiln is mainly used for magnetizing roasting of lean iron ores in iron and steel plants in metallurgical industry; oxidizing and roasting chromium and nickel iron ores; roasting high alumina bauxite ore in a refractory material factory, roasting clinker in an aluminum factory and aluminum hydroxide; roasting chromium ore sand, chromium ore powder and other minerals in chemical plants. Lime kilns (i.e., active lime kilns) are used to calcine active lime and light burned dolomite for iron and steel plants and ferroalloy plants. In nonferrous and ferrous metallurgy, metals such as iron, aluminum, copper, zinc, tin, nickel, tungsten, chromium, file and the like are sintered and roasted by taking a rotary kiln as smelting equipment. At present, the rotary kiln is used as core equipment in carbonization working procedures required for preparing the active carbon with red fire, and the invention is also improved and described for the equipment.
The active carbon carbonizing kiln consists of three parts including kiln body, support unit and driving unit, and the kiln body may be divided into kiln shell, kiln lining and burning unit. The kiln lining is a fireproof heat insulation structure formed by casting fireproof material unshaped powder or building prefabricated bricks on site, and the quality of the kiln lining directly influences the heat dissipation loss, single ton energy consumption, operation rate and service life of the carbonization kiln, and is a core part of the whole carbonization kiln system. Industry has long sought better and stronger kiln liner structures and materials. In the structure of the conventional carbonization kiln, the kiln lining of the carbonization kiln is tightly connected with the inner wall of the kiln shell in a mode of cast-in-situ formwork supporting, prefabricated masonry, brick material alternation and the like, and the thickness of the kiln lining is generally 250-300mm, so that the kiln lining plays roles of fire blocking, heat insulation and material filling.
The operation principle of the existing conventional activation kiln is as follows: the material to be activated enters the kiln from the position of the tail end of the kiln, and is heated to 700-900 ℃ by high-temperature flue gas sprayed by a heat supply burner while rolling in the rotary kiln, meanwhile, steam entering from the position of the kiln head box is sprayed into the kiln along a single-port steam spraying device to perform contact reaction with the high-temperature material, an activation effect is generated, and finally, the activated material is discharged from the lower part of the kiln head box and enters the next cooling procedure.
In the production of the activation kiln in the prior art, the steam injection method is single-pipe end injection type, namely, only one steam injection port is arranged in the activation kiln and is positioned at the kiln head box position, and the production method and the device have the following two defects in long-term production:
1. insufficient contact of the material with steam: when the activation kiln under the prior art is used for production, steam sprayed into the kiln by a steam pipe at the kiln head box position cannot be effectively sprayed to the middle and rear positions of the kiln, and even at the front part of the kiln, the steam can only be effectively contacted with materials on the inner surface layer of the kiln, but cannot be fully reacted with the materials on the lower layer. Thus, the contact between the whole material in the kiln and steam is insufficient, and the product has low activation degree and poor quality;
2. the steam injection quantity distribution is unreasonable: when the activation kiln in the prior art is used for production, only one steam inlet is provided, and the step gas distribution formed according to the temperature distribution in the interval in the kiln cannot be realized. This can lead to the situation that there is too much steam in the kiln and insufficient steam in the kiln, which can adversely affect production.
Disclosure of Invention
Aiming at the defects existing in the prior art, a designer aims to develop a novel annular multitube embedded type activation kiln device for cascade steam injection for an activation kiln, which can fully contact and react materials with steam and realize cascade steam injection in the kiln, and a control method thereof by improving the prior art and the structural form. The invention provides an annular multitube embedded type step steam-spraying activation kiln device, which changes the position of a steam spraying opening in the prior art from a kiln head box to a kiln body, greatly increases the number, and simultaneously changes the steam into sectional independent control type steam spraying; the contact specific surface area of the material and steam in the kiln is greatly enhanced, and the material and steam can fully contact and react, so that the activation degree of the product is effectively improved; ensures the utilization efficiency of steam and brings positive auxiliary effect to the efficient production of the activation kiln.
According to a first embodiment of the invention, an activation kiln device for annular multitube pre-buried cascade steam injection is provided.
An activation kiln device for annular multitube embedded cascade steam injection comprises a kiln body, a kiln head box, a burner, a driving device and a steam injection device. The tail end of the kiln body is connected and communicated with the kiln head box. The burner is arranged on the axial side wall of the kiln head box. The driving device is connected with the kiln body and drives the kiln body to rotate. An activation chamber is arranged in the kiln body. The steam spraying device comprises a steam conveying main pipe, a steam conveying branch pipe, a steam conveying ring and a steam spraying pipe. The steam conveying ring and the kiln body are concentrically surrounded and arranged on the outer side of the kiln body. One end of the steam spraying pipe passes through the kiln body and is communicated with the activation chamber, and the other end of the steam spraying pipe is connected and communicated with the steam conveying ring. The steam conveying ring is connected and communicated with the steam conveying main pipe through a steam conveying branch pipe.
Preferably, the device further comprises a dynamic and static combined sealing device. The dynamic and static combined sealing device comprises an air supply main pipe, a static disc, a dynamic disc and a sealing element. The air supply header pipe is connected and communicated with the static disc. The static disk and the dynamic disk are arranged in parallel and a sealing element is arranged between the static disk and the dynamic disk. The dynamic disc is fixedly connected with the steam conveying main pipe.
Preferably, the steam spraying device comprises n steam conveying rings which are arranged concentrically with the kiln body in the axial direction. The n steam conveying rings are uniformly and parallelly arranged on the outer side of the kiln body. Each steam delivery ring is connected and communicated with the steam delivery main pipe through an independent steam delivery branch pipe.
Preferably, n is 1 to 20, preferably 2 to 10, more preferably 3 to 8.
Preferably, m steam injection pipes are arranged on each steam conveying ring. One end of each of the m steam spraying pipes is uniformly and annularly arranged on the kiln body, and the other end of each steam spraying pipe is connected and communicated with the steam conveying ring.
Preferably, m is 1 to 30, preferably 2 to 20, more preferably 3 to 10.
Preferably, each steam delivery branch pipe is provided with a flow monitoring device and/or a flow regulating valve.
Preferably, the flow rate regulating valve is a remote execution control solenoid valve.
Preferably, a temperature monitoring device is arranged on the side wall of the kiln body at the corresponding position of each steam conveying ring.
In the present invention, the static disc is a hollow circular pie-shaped structure. The static disc is provided with an annular steam outlet on one side close to the dynamic disc. The air inlet end of the steam conveying main pipe corresponds to the position of the annular steam outlet.
Preferably, the air supply main pipe is provided with a main pipe flow regulating control valve.
In the invention, the steam spraying pipe is one or more of a straight pipe type, a T pipe type and a hemispherical pipe type. One end of the steam spraying pipe extending into the kiln body is provided with a steam spraying hole.
In the invention, the burner is connected with a fuel gas conveying pipe and a combustion-supporting gas conveying pipe. The gas conveying pipe is provided with a gas flow monitoring device.
Preferably, the apparatus further comprises a control system. The control system is connected with the driving device, the flow monitoring device, the flow regulating valve, the temperature monitoring device, the main pipe control valve and the gas flow monitoring device and controls the flow regulating valve and the main pipe control valve.
According to a second embodiment of the invention, an application method of an annular multitube embedded type step steam injection activation kiln device is provided.
A method of using an annular multitube pre-buried cascade steam-injected activation kiln apparatus or a method of using the apparatus of the first embodiment, the method comprising the steps of:
1) Inputting the material to be activated into the kiln body, and controlling the driving device by the control system to enable the kiln body to start rotating;
2) The steam spraying pipe of the steam spraying device sprays steam into the big bore of the kiln body;
3) The materials are activated in the big bore of the kiln body, and after the activation is finished, the materials enter the kiln head box from the big bore of the kiln body and are discharged from the discharge port of the kiln head box.
Preferably, the step 2) specifically comprises:
3) According to the quantity M of the material to be activated which is conveyed into the kiln body Feeding material The gas flow monitoring device detects the delivery quantity M of the gas in the gas delivery pipe Fuel and its production process Calculating the total steam injection quantity Q required by the current activation Total (S) ；
Wherein:wherein: q (Q) Total (S) For the total flow of steam, M Feeding material For feeding amount M Fuel and its production process For fuel quantity, C Fuel and its production process Is fuel chemical heat, K is an activation coefficient;
b) According to the firstThe first temperature monitoring device on the side wall of the kiln body at the corresponding position of a steam conveying ring monitors and detects the temperature T at the position 1 The second temperature monitoring device on the side wall of the kiln body at the corresponding position of the second steam conveying ring monitors and detects the temperature T at the position 2 An nth temperature monitoring device on the side wall of the kiln body at the position corresponding to the nth steam conveying ring of … … monitors and detects the temperature T at the position n The method comprises the steps of carrying out a first treatment on the surface of the Calculating the steam injection proportion of each steam conveying ring;
wherein: q (Q) 1 :Q 2 :……:Q n ＝T 1 :T 2 :……:T n The method comprises the steps of carrying out a first treatment on the surface of the Wherein: q (Q) 1 For the flow rate on the first steam delivery ring, Q 2 For flow rate on the second steam delivery ring, Q n For the flow rate on the nth steam delivery ring, T 1 The temperature of the position is monitored by a first temperature monitoring device on the side wall of the kiln body at the position corresponding to the first steam conveying ring, T 2 Monitoring the temperature at the position detected by a second temperature monitoring device on the side wall of the kiln body at the position corresponding to the second steam conveying ring, T n Monitoring the temperature of the position detected by an nth temperature monitoring device on the side wall of the kiln body at the position corresponding to the nth steam conveying ring;
c) Calculating the theoretical flow rate Q of the first steam conveying ring 1 Theoretical flow rate on the second steam delivery ring is Q 2 The theoretical flow rate on the nth steam delivery ring of … … is Q n ；
Wherein:
d) Regulating the main pipe control valve to ensure that the steam flow in the air supply main pipe is Q Total (S) ；
e) Monitoring flow monitoring devices to adjust flow regulating valves on each steam delivery branch pipe so that the actual flow on the first steam delivery ring is Q 1 The actual flow rate on the second steam delivery ring is Q 2 The actual flow rate on the nth steam delivery ring of … … is Q n 。
Preferably, the method further comprises:f) The flow monitoring device monitors the actual flow on each steam delivery ring in real time, and the control system judges whether the monitored actual flow is equal to the calculated Q n Matching; if the two values are matched, continuing to operate; if not, adjusting the flow regulating valves on the corresponding steam delivery rings so that the actual flow on each steam delivery ring is matched with the calculated Q n And (5) matching.
According to a third embodiment provided by the invention, the use of the annular multitube embedded type step steam injection activation kiln device is provided.
The activation kiln device of the first embodiment or the method of the second embodiment is used for preparing active carbon. The device is preferably used for an activation kiln for activated carbon production.
In the invention, the tail end of the kiln body refers to the end of the kiln body connected with the kiln head box, namely the tail end of the kiln body through which materials pass. The kiln head box is of a box body structure, can be of a cuboid or cylinder structure and the like, the tail end of the kiln body is connected and communicated with one side of the kiln head box, and the burner is arranged on the side wall of the opposite side of the kiln head box; that is, the outlet of the burner is opposite to the discharge opening of the kiln body. Preferably, the center line of the burner is on the same straight line with the center line of the kiln body.
In the present invention, the driving device is not limited as long as it can drive the rotary kiln body to rotate.
In the invention, an activation chamber is arranged in the kiln body and is used as a place for activating materials (such as activated carbon) to be activated. In general, the kiln body consists of a kiln shell, a kiln liner and an activation chamber; the activation chamber is positioned at the center, the kiln liner is positioned at the middle position, and the kiln shell is positioned at the outer side. The activation chamber is a cylindrical structure with front and rear ends open, and the left side and the right side of the large chamber are open and cylindrical according to a normal placement view (shown in fig. 1). The front side (left side) of the activation chamber is a feed inlet (or a material inlet) of the activation chamber, the rear side (right side) of the activation chamber is a discharge outlet after the material is heated or activated in the activation chamber, and the material discharged from the activation chamber enters a kiln head box. The kiln liner of the rotary kiln plays roles of supporting and heat preservation. The kiln head box is provided with a discharge hole.
In the invention, the outer side of the kiln body is provided with the steam spraying device, the steam spraying device comprises a plurality of steam conveying rings, the steam conveying rings are uniformly and parallelly arranged on the outer side of the kiln body, that is, the steam conveying rings are arranged on the outer side of the kiln body from the front end to the tail end along the running direction of materials in the kiln body, and the distances between the adjacent steam conveying rings can be the same or different. The design changes the position of the steam spraying opening in the prior art from the kiln head box to the kiln body (or kiln body), and the number is greatly increased; when the design is produced, the temperature in the kiln corresponding to each steam spraying ring is conveniently and accurately monitored, and different steam spraying amounts of different rings are independently adjusted according to the temperature. The steam delivery ring is provided with a plurality of steam injection pipes, and a plurality of steam injection pipes are arranged on the same circumference of the kiln body, so that a plurality of steam injection holes are formed in the inner wall of the activation chamber. According to the method, the plurality of steam spraying holes are formed in the inner wall of the activation chamber, the kiln body rotates continuously, the material to be activated also rotates along with the kiln body, steam is sprayed into the position of the activation chamber all the time, the contact specific surface area of the material in the kiln and the steam is greatly enhanced, and the material and the steam can fully contact and react, so that the activation degree of a product is effectively improved. In addition, one end of the steam spraying pipe is communicated with the activation chamber through the kiln body, namely the steam pipe penetrates through the shell and the lining of the kiln body from the outer side of the kiln body and stretches into the activation chamber. The plane of each steam conveying ring is vertical to the axial direction of the kiln body. The concentric arrangement of the steam conveying ring and the kiln body means that the circular center line of the steam conveying ring and the center line of the kiln body are on the same straight line or parallel.
In the invention, the activation kiln is rotated during production, and the setting of the dynamic and static combined sealing device ensures the normal operation of the whole device. The whole steam spraying device and the dynamic disc rotate (do circular motion) under the action of the driving device along with the kiln body; the air supply manifold, static disk, is relatively stationary. The steam spraying device is fixedly connected with the kiln body, and a steam conveying main pipe in the steam spraying device is fixedly connected with the dynamic disc; the air supply main pipe is fixedly connected with the static disc; the sealing element is used for sealing a gap between the dynamic disc and the static disc, and steam is guaranteed not to leak. The static disc and the dynamic disc are arranged in parallel, and the static disc and the dynamic disc are concentrically arranged. The static disc is of a hollow circular cake-shaped structure, one side of the static disc, which is close to the dynamic disc, is provided with an annular steam outlet, and the air inlet end of the steam conveying main pipe corresponds to the annular steam outlet; that is, a circle of annular steam outlets are arranged on the static disc, other positions of one side of the static disc, which is opened into the dynamic disc, are of a sealing structure, and steam can only be discharged from the annular steam outlets; the air inlet end of the steam conveying main pipe is right opposite to the annular steam outlet, and the annular diameter of the annular steam outlet is the same as the circumferential diameter of the steam conveying main pipe which follows the rotation of the kiln body. The dynamic disk rotates along with the steam delivery manifold, and the gap between the dynamic disk and the static disk is sealed by a seal. The sealing element can adopt a water sealing mode, a sand sealing mode or other dynamic and static combined sealing modes; the seal is a device and apparatus commonly used in the art.
In the invention, as the outer side of the kiln body is provided with the plurality of steam conveying rings, each steam conveying ring is respectively connected with one steam conveying branch pipe, and each steam conveying branch pipe is provided with the flow monitoring device and/or the flow regulating valve, the design can realize sectional independent control type steam spraying, and the steam spraying amount at each position of the kiln body is different according to a specific activation process. Generally, the higher the temperature, the greater the amount of steam required; the lower the temperature, the smaller the amount of steam required. The design of the application is generally positioned at the front section of the kiln body, so that the smaller the steam quantity is, the smaller steam injection quantity can be controlled by a flow monitoring device and a flow regulating valve on a steam conveying branch pipe connected with the steam conveying ring at the position; the temperature at the rear section of the kiln body is higher, so that the larger the steam quantity is, the larger steam injection quantity can be controlled by a flow monitoring device and a flow regulating valve on a steam conveying branch pipe connected with the steam conveying ring at the position. Therefore, the flow monitoring device and/or the flow regulating valve are/is convenient for accurately monitoring the temperature in the kiln corresponding to each steam injection ring and independently regulating the different steam injection amounts of different rings according to the temperature.
In the invention, a temperature monitoring device is arranged on the side wall of the kiln body at the corresponding position of each steam conveying ring, and the design aims at conveniently calculating the steam injection quantity at the position according to the detected temperature in the activation chamber at the position of the corresponding steam conveying ring. The temperature monitoring device is arranged on the side wall of the kiln body, the side wall of the kiln body closest to the kiln body position of each steam conveying ring is provided with a temperature monitoring device, and the temperature monitoring device detects the temperature in the kiln body corresponding to the steam conveying ring.
In the invention, the steam injection pipe has the function of injecting steam into the activation chamber, and the structure of the steam injection pipe is not limited as long as the steam injection pipe can inject steam into the activation chamber and can prevent the material to be activated from entering the steam injection pipe.
In the invention, after the system starts to run, the feeding amount and the fuel amount of the activation kiln are monitored in real time, and the total steam flow range required by the current production is calculated according to the feeding amount and the fuel amount. Meanwhile, the system monitors the temperature value of each temperature measuring point in the activation kiln, and calculates the proportion (proportional relation with the temperature) of the steam flow of each section in the kiln according to the temperature value. The system will then calculate the theoretical flow range for each segment of steam based on the calculated total steam flow and the steam ratio for each segment. Meanwhile, the system detects the actual flow of each section of steam through the flow detection device arranged on the steam branch pipe, when the actual flow of the steam does not accord with the theoretical flow in a certain section, the system automatically adjusts the opening of the electromagnetic valve of the corresponding section to finally accord with the theoretical flow, thereby completing the operation, and continuously returning to the step 3 for infinite circulation, thereby achieving the effect of intelligent production.
When the activation kiln is used for normal production, steam enters the static disc from the air supply main pipe, enters the rotary dynamic disc through the annular opening and then enters the steam conveying main pipe, then enters the steam conveying ring through the steam conveying branch pipe, finally enters the activation kiln through the steam spraying pipe, and reacts with the activated carbon material heated to 700-900 ℃ to finish the activation process. Meanwhile, during system production, the steam quantity required to be sprayed by each steam conveying ring can be automatically calculated by monitoring the feeding quantity, the fuel quantity and the temperature value near each ring in the kiln, so that the flow is controlled by adjusting the flow regulating valve, and the flow is checked by the flow monitoring device.
In the present invention, the size of the kiln body may be set according to the actual production process. In general, the outer diameter of the kiln body is 500 to 10000mm, preferably 800 to 6000mm, more preferably 1000 to 4000mm. The steam conveying ring can be tightly attached to the outer side of the kiln body, and a gap is formed between the steam conveying ring and the outer side of the kiln body; typically, the gap between the steam delivery ring and the outside of the kiln body is 1-1000mm, preferably 5-800mm, more preferably 10-500mm.
Compared with the prior art, the invention has the following beneficial technical effects:
1. the device changes the position of the steam spraying opening in the prior art from the kiln head box to the kiln body (or kiln body), and the number is greatly increased; the temperature in the kiln corresponding to each steam spraying ring is conveniently and accurately monitored, and different steam spraying amounts of different rings are independently adjusted according to the temperature;
2. after the technology is adopted, steam is sprayed out from the kiln inner wall at the bottom of the material pile during production and enters the atmosphere area in the kiln after passing through the material layer, so that the contact specific surface area of the material in the kiln and the steam is greatly enhanced, the material and the steam can fully contact and react, and the activation degree of the product is effectively improved;
3. after the technology of the invention is adopted, steam is not sprayed by a single pipe in the prior art, but sprayed by a plurality of annular pipes, and each annular pipe is reasonably distributed according to the detected temperature value in the kiln, so that the situation that partial areas in the kiln are too much in steam and partial areas are not enough in the production in the prior art is effectively prevented, the utilization efficiency of the steam is ensured, and a positive auxiliary effect is brought to the efficient production of the activation kiln.
Drawings
FIG. 1 is a schematic diagram of an activation kiln apparatus for annular multitube pre-buried cascade steam injection according to the present invention;
FIG. 2 is a cross-sectional view of the portion A-A of FIG. 1;
FIG. 3 is a schematic diagram of a structure of an activation kiln device with annular multitube embedded step steam injection provided with a dynamic and static combined sealing device;
FIG. 4 is a cross-sectional view of the portion B-B of FIG. 3;
FIG. 5 is a schematic view of a straight pipe type steam injection pipe according to the present invention;
FIG. 6 is a schematic view of a structure in which the steam injection pipe of the present invention is T-pipe type;
FIG. 7 is a schematic view of a steam injection pipe of the present invention in the form of a hemispherical pipe;
FIG. 8 is a schematic control diagram of an annular multitube pre-buried cascade steam-injection activation kiln apparatus according to the present invention;
FIG. 9 is a schematic diagram of a method of using an annular multitube pre-buried cascade steam-injection activation kiln apparatus of the present invention;
FIG. 10 is a schematic illustration of another method of using an annular multitube pre-buried cascade steam-injection activation kiln assembly of the present invention.
Reference numerals:
1: a kiln body; 101: an activation chamber; 2: a kiln head box; 3: a burner; 4: a driving device; 5: a steam spraying device; 501: a vapor delivery manifold; 502: a steam delivery manifold; 503: a steam delivery ring; 504: a steam injection pipe; 50401: a steam spraying hole; 6: dynamic and static combined sealing device; 601: a gas supply main pipe; 60101: a manifold control valve; 602: a static disk; 60201: an annular steam outlet; 603: a dynamic disk; 604: a seal; 7: a flow monitoring device; 8: a flow regulating valve; 9: a temperature monitoring device; 10: a gas flow monitoring device; l1: a gas delivery pipe; l2: a fuel gas delivery pipe; k: and a control system.
Detailed Description
According to a first embodiment of the invention, an activation kiln device for annular multitube pre-buried cascade steam injection is provided.
An activation kiln device for annular multi-pipe embedded type cascade steam injection comprises a kiln body 1, a kiln head box 2, a burner 3, a driving device 4 and a steam injection device 5. The tail end of the kiln body 1 is connected and communicated with a kiln head box 2. The burner 3 is arranged on the axial side wall of the kiln head box 2. The driving device 4 is connected with the kiln body 1 and drives the kiln body 1 to rotate. An activation chamber 101 is arranged in the kiln body 1. The steam spraying device 5 comprises a steam conveying main pipe 501, a steam conveying branch pipe 502, a steam conveying ring 503 and a steam spraying pipe 504. The steam delivery ring 503 is concentrically disposed around the kiln body 1 outside the kiln body 1. One end of the steam injection pipe 504 passes through the kiln body 1 to be communicated with the activation chamber 101, and the other end of the steam injection pipe 504 is connected and communicated with the steam conveying ring 503. The vapor delivery ring 503 is connected to and communicates with the vapor delivery manifold 501 via vapor delivery manifold 502.
Preferably, the device further comprises a dynamic and static combined sealing device 6. The dynamic and static combined sealing device 6 comprises a gas supply main pipe 601, a static disc 602, a dynamic disc 603 and a sealing piece 604. The air supply manifold 601 is connected to and communicates with the stationary plate 602. The static disc 602 and the dynamic disc 603 are arranged in parallel and a seal 604 is provided between the static disc 602 and the dynamic disc 603. The dynamic disk 603 is fixedly connected to the vapor delivery manifold 501.
Preferably, the steam spraying device 5 comprises n steam conveying rings 503 which are arranged concentrically with the kiln body 1 in the axial direction. The n steam delivery rings 503 are uniformly and parallelly arranged on the outer side of the kiln body 1. Each vapor delivery ring 503 is connected to and communicates with vapor delivery manifold 501 via a separate vapor delivery manifold 502.
Preferably, n is 1 to 20, preferably 2 to 10, more preferably 3 to 8.
Preferably, m steam injection pipes 504 are provided on each steam delivery ring 503. One end of m steam injection pipes 504 is uniformly and annularly arranged on the kiln body 1, and the other end of each steam injection pipe 504 is connected and communicated with a steam conveying ring 503.
Preferably, m is 1 to 30, preferably 2 to 20, more preferably 3 to 10.
Preferably, each of the vapor delivery manifold 502 is provided with a flow monitoring device 7 and/or a flow regulating valve 8.
Preferably, the flow rate regulating valve 8 is a remote execution control solenoid valve.
Preferably, a temperature monitoring device 9 is arranged on the side wall of the kiln body 1 at the corresponding position of each steam conveying ring 503.
In the present invention, the stationary plate 602 is a hollow circular pie-shaped structure. The side of the static disc 602 adjacent to the dynamic disc 603 is provided with an annular steam outlet 60201. The inlet end of the vapor delivery manifold 501 corresponds in position to the annular vapor outlet 60201.
Preferably, the air supply manifold 601 is provided with a manifold flow rate adjustment control valve 60101.
In the present invention, the steam injection pipe 504 is one or more of a straight pipe type, a T pipe type, and a hemispherical pipe type. The steam injection pipe 504 is provided with a steam injection hole 50401 at an end extending into the kiln body 1.
In the present invention, the burner 3 is connected to the gas feed pipe L1 and the combustion-supporting gas feed pipe L2. The gas flow rate monitoring device 10 is provided on the gas delivery pipe L1.
Preferably, the apparatus further comprises a control system K. The control system K is connected to the driving device 4, the flow rate monitoring device 7, the flow rate adjustment valve 8, the temperature monitoring device 9, the manifold control valve 60101, and the gas flow rate monitoring device 10, and controls the flow rate adjustment valve 8 and the manifold control valve 60101.
Example 1
As shown in fig. 1 and 2, an activation kiln device for annular multitube embedded cascade steam injection comprises a kiln body 1, a kiln head box 2, a burner 3, a driving device 4 and a steam injection device 5. The tail end of the kiln body 1 is connected and communicated with a kiln head box 2. The burner 3 is arranged on the axial side wall of the kiln head box 2. The driving device 4 is connected with the kiln body 1 and drives the kiln body 1 to rotate. An activation chamber 101 is arranged in the kiln body 1. The steam spraying device 5 comprises a steam conveying main pipe 501, a steam conveying branch pipe 502, a steam conveying ring 503 and a steam spraying pipe 504. The steam delivery ring 503 is concentrically disposed around the kiln body 1 outside the kiln body 1. One end of the steam injection pipe 504 passes through the kiln body 1 to be communicated with the activation chamber 101, and the other end of the steam injection pipe 504 is connected and communicated with the steam conveying ring 503. The vapor delivery ring 503 is connected to and communicates with the vapor delivery manifold 501 via vapor delivery manifold 502. The steam spraying pipe 504 is a straight pipe, and a steam spraying hole 50401 is arranged at one end of the steam spraying pipe 504 extending into the kiln body 1.
Example 2
As shown in fig. 3 and 4, example 1 is repeated except that the apparatus further includes a dynamic and static combined sealing means 6. The dynamic and static combined sealing device 6 comprises a gas supply main pipe 601, a static disc 602, a dynamic disc 603 and a sealing piece 604. The air supply manifold 601 is connected to and communicates with the stationary plate 602. The static disc 602 and the dynamic disc 603 are arranged in parallel and a seal 604 is provided between the static disc 602 and the dynamic disc 603. The dynamic disk 603 is fixedly connected to the vapor delivery manifold 501. The stationary plate 602 is a hollow circular pie-shaped structure. The side of the static disc 602 adjacent to the dynamic disc 603 is provided with an annular steam outlet 60201. The inlet end of the vapor delivery manifold 501 corresponds in position to the annular vapor outlet 60201. The air supply manifold 601 is provided with a manifold control valve 60101.
Example 3
Example 2 is repeated except that the steaming device 5 includes 5 steam delivery rings 503. The 5 steam delivery rings 503 are disposed outside the kiln body 1 in a uniform parallel manner and concentrically disposed with the kiln body 1 in the axial direction. Each vapor delivery ring 503 is connected to and communicates with vapor delivery manifold 501 via a separate vapor delivery manifold 502. Each steam delivery ring 503 has 6 steam injection pipes 504. One end of each of the 6 steam injection pipes 504 is uniformly and annularly arranged on the kiln body 1, and the other end of each steam injection pipe 504 is connected and communicated with the steam conveying ring 503.
Example 4
Example 3 is repeated except that the steaming device 8 includes 5 steam delivery rings 503. Each steam delivery ring 503 is provided with 12 steam injection pipes 504.
Example 5
Example 3 was repeated except that a flow rate monitoring device 7 and a flow rate regulating valve 8 were provided on each of the vapor delivery manifold 502. The flow regulating valve 8 is a remote execution control electromagnetic valve. A temperature monitoring device 9 is arranged on the side wall of the kiln body 1 at the corresponding position of each steam conveying ring 503. The burner 3 is connected with a fuel gas conveying pipe L1 and a combustion-supporting gas conveying pipe L2. The gas flow rate monitoring device 10 is provided on the gas delivery pipe L1.
Example 6
Example 5 was repeated except that the steam injection pipe 504 was a T-pipe type.
Example 7
Example 5 was repeated except that the device also included a control system K. The control system K is connected to the driving device 4, the flow rate monitoring device 7, the flow rate adjustment valve 8, the temperature monitoring device 9, the manifold control valve 60101, and the gas flow rate monitoring device 10, and controls the flow rate adjustment valve 8 and the manifold flow rate adjustment control valve 60101.
Example 8
The apparatus of example 7 was used for activated carbon production and the apparatus was used for an activation kiln for activated carbon production.
Use example 1
The apparatus of example 1 was used for the preparation of activated carbon, the method comprising the steps of:
1) Inputting the material to be activated into the kiln body 1, and controlling the driving device 4 by the control system K to start the kiln body 1 to rotate;
2) The steam spraying pipe 504 of the steam spraying device 5 sprays steam into the big bore of the kiln body 1;
3) The materials are activated in the large bore of the kiln body 1, and after the activation is finished, the materials enter the kiln head box 2 from the large bore of the kiln body 1 and are discharged from a discharge hole of the kiln head box 2.
Use of example 2
The apparatus of example 7 was used for the preparation of activated carbon, the method comprising the steps of:
1) Inputting the material to be activated into the kiln body 1, and controlling the driving device 4 by the control system K to start the kiln body 1 to rotate;
2) The steam spraying pipe 504 of the steam spraying device 5 sprays steam into the big bore of the kiln body 1; the method comprises the following steps:
a) According to the quantity M of material to be activated which is conveyed into the kiln body 1 Feeding material The gas flow monitor 10 detects the delivery amount M of the gas in the gas delivery pipe L1 Fuel and its production process Calculating the total steam injection quantity Q required by the current activation Total (S) ；
Wherein:wherein: q (Q) Total (S) For the total flow of steam, M Feeding material For feeding amount M Fuel and its production process For fuel quantity, C Fuel and its production process Is fuel chemical heat, K is an activation coefficient;
b) The first temperature monitoring device 9 on the side wall of the kiln body 1 corresponding to the position of the first steam conveying ring 503 monitors and detects the temperature T of the position 1 The second temperature monitoring device 9 on the side wall of the kiln body 1 at the position corresponding to the second steam conveying ring 503 monitors and detects the temperature T at the position 2 The 5 th temperature monitoring device 9 on the side wall of the kiln body 1 at the position corresponding to the 5 th steam conveying ring 503 of … … monitors and detects the temperature T at the position 5 The method comprises the steps of carrying out a first treatment on the surface of the Calculating the steam injection proportion of each steam conveying ring 503;
wherein: q (Q) 1 :Q 2 :……:Q 5 ＝T 1 :T 2 :……:T 5 The method comprises the steps of carrying out a first treatment on the surface of the Wherein: q (Q) 1 Q is the flow rate on the first vapor delivery ring 503 2 Q is the flow rate on the second vapor delivery ring 503 5 T for flow on the 5 th steam delivery ring 503 1 The temperature at the position corresponding to the first steam conveying ring 503 is detected by a first temperature monitoring device 9 on the side wall of the kiln body 1, T 2 The second temperature monitoring device 9 on the side wall of the kiln body 1 corresponding to the position of the second steam conveying ring 503 monitors and detects the temperature of the position, T 5 The 5 th temperature monitoring device 9 on the side wall of the kiln body 1 at the position corresponding to the 5 th steam conveying ring 503 monitors the temperature at the position;
c) Calculating the theoretical flow rate Q of the first steam delivery ring 503 1 The theoretical flow rate on the second steam delivery ring 503 is Q 2 ，…… theoretical flow rate Q on 5 th steam delivery ring 503 5 ；
Wherein:
Q total (S) ＝Q 1 +Q 2 +Q 3 +Q 4 +Q 5 ；
d) Regulating the manifold control valve 60101 such that the vapor flow in the supply manifold 601 is Q Total (S) ；
e) Monitoring the flow rate monitoring device 7, adjusting the flow rate adjusting valve 8 on each of the steam delivery branch pipes 502 so that the actual flow rate on the first steam delivery ring 503 becomes Q 1 The actual flow rate on the second steam delivery ring 503 is Q 2 The actual flow rate on the 5 th steam delivery ring 503 of … … is Q 5 ；
3) The materials are activated in the large bore of the kiln body 1, and after the activation is finished, the materials enter the kiln head box 2 from the large bore of the kiln body 1 and are discharged from a discharge hole of the kiln head box 2.
Use of example 3
The reuse of embodiment 2, the method further comprising: f) The flow monitoring device 7 monitors the actual flow rate on each steam delivery ring 503 in real time, and the control system K judges whether the monitored actual flow rate is equal to the calculated Q n Matching; if the two values are matched, continuing to operate; if not, the flow regulating valves 8 on the respective steam delivery rings 503 are adjusted so that the actual flow on each steam delivery ring 503 is matched with the calculated Q n And (5) matching.
Comparative example 1
The traditional carbonization kiln is used for preparing the activated carbon.
The external dimensions of the rotary kiln in all the examples and the comparative examples are the same, and are phi 2X20.
Claims (11)
1. A method for activating an activation kiln device using annular multitube embedded type cascade steam injection comprises a kiln body (1), a kiln head box (2), a burner (3), a driving device (4), a steam injection device (5) and a control system (K); the steam spraying device (5) comprises a steam conveying main pipe (501), a steam conveying branch pipe (502), a steam conveying ring (503) and a steam spraying pipe (504); the device also comprises a dynamic and static combined sealing device (6), wherein the dynamic and static combined sealing device (6) comprises a gas supply main pipe (601), a static disc (602), a dynamic disc (603) and a sealing piece (604); the steam spraying device (5) comprises n steam conveying rings (503) which are concentrically arranged with the kiln body (1) in the axial direction, the n steam conveying rings (503) are uniformly and parallelly arranged at the outer side of the kiln body (1), and n is 1-20; each steam conveying ring (503) is connected and communicated with the steam conveying main pipe (501) through an independent steam conveying branch pipe (502); each steam delivery branch pipe (502) is provided with a flow monitoring device (7) and a flow regulating valve (8); a temperature monitoring device (9) is arranged on the side wall of the kiln body (1) at the corresponding position of each steam conveying ring (503); a main pipe control valve (60101) is arranged on the air supply main pipe (601); the burner (3) is connected with a gas conveying pipe (L1) and a combustion-supporting gas conveying pipe (L2), and a gas flow monitoring device (10) is arranged on the gas conveying pipe (L1);
the method comprises the following steps:
1) Inputting the material to be activated into the kiln body (1), and controlling the driving device (4) by the control system (K) to enable the kiln body (1) to start rotating;
2) A steam spraying pipe (504) of the steam spraying device (5) sprays steam into the big bore of the kiln body (1); the method comprises the following steps:
a) According to the quantity M of the material to be activated which is conveyed into the kiln body (1) Feeding material The gas flow monitoring device (10) detects the delivery quantity M of the gas in the gas delivery pipe (L1) Fuel and its production process Calculating the total steam injection quantity Q required by the current activation Total (S) ；
Wherein:wherein: q (Q) Total (S) For the total flow of steam, M Feeding material For feeding amount M Fuel and its production process For fuel quantity, C Fuel and its production process Is fuel chemical heat, K is an active systemA number;
b) The first temperature monitoring device (9) on the side wall of the kiln body (1) corresponding to the position of the first steam conveying ring (503) monitors and detects the temperature T of the position 1 The second temperature monitoring device (9) on the side wall of the kiln body (1) at the corresponding position of the second steam conveying ring (503) monitors and detects the temperature T at the position 2 An nth temperature monitoring device (9) on the side wall of the kiln body (1) at the position corresponding to the nth steam conveying ring (503) of … … monitors and detects the temperature T at the position n The method comprises the steps of carrying out a first treatment on the surface of the Calculating the steam injection proportion of each steam conveying ring (503);
wherein: q (Q) 1 :Q 2 :……:Q n ＝T 1 :T 2 :……:T n The method comprises the steps of carrying out a first treatment on the surface of the Wherein: q (Q) 1 For the flow rate on the first steam delivery ring (503), Q 2 For the flow rate, Q, on the second steam delivery ring (503) n T for the flow rate on the nth steam delivery ring (503) 1 The temperature at the position is detected by a first temperature monitoring device (9) on the side wall of the kiln body (1) corresponding to the position of the first steam conveying ring (503), T 2 The temperature at the position is monitored and detected by a second temperature monitoring device (9) on the side wall of the kiln body (1) at the position corresponding to the second steam conveying ring (503), T n Monitoring the temperature of the position detected by an nth temperature monitoring device (9) on the side wall of the kiln body (1) at the position corresponding to the nth steam conveying ring (503);
c) Calculating the theoretical flow rate Q of the first steam delivery ring (503) 1 The theoretical flow rate on the second steam delivery ring (503) is Q 2 The theoretical flow rate on the nth steam delivery ring (503) of … … is Q n ；
Wherein:
d) Regulating the main pipe control valve (60101) to ensure that the steam flow in the air supply main pipe (601) is Q Total (S) ；
e) Monitoring flow monitoring means (7) for adjusting the flow regulating valve (8) on each steam delivery branch (502) such that the actual flow on the first steam delivery ring (503) is Q 1 The actual flow rate on the second steam delivery ring (503) is Q 2 The actual flow rate on the nth steam delivery ring (503) of … … is Q n ；
3) The material is activated in the big bore of the kiln body (1), and after the activation is finished, the material enters the kiln head box (2) from the big bore of the kiln body (1) and is discharged from a discharge hole of the kiln head box (2).
2. The method according to claim 1, characterized in that: the method further comprises the steps of: f) The flow monitoring device (7) monitors the actual flow on each steam delivery ring (503) in real time, and the control system (K) judges whether the monitored actual flow is equal to the calculated Q n Matching; if the two values are matched, continuing to operate; if not, the flow regulating valves (8) on the corresponding steam delivery rings (503) are regulated so that the actual flow on each steam delivery ring (503) is matched with the calculated Q n And (5) matching.
3. The method according to claim 1 or 2, characterized in that: m steam spraying pipes (504) are arranged on each steam conveying ring (503), one ends of the m steam spraying pipes (504) are uniformly and annularly arranged on the kiln body (1), the other ends of the steam spraying pipes (504) are connected and communicated with the steam conveying rings (503), and m is 1-30.
4. The method according to claim 1 or 2, characterized in that: the air supply main pipe (601) is connected and communicated with the static disc (602), the static disc (602) and the dynamic disc (603) are arranged in parallel, and a sealing piece (604) is arranged between the static disc (602) and the dynamic disc (603); the dynamic disk (603) is fixedly connected with the steam conveying main pipe (501).
5. A method according to claim 3, characterized in that: n is 2-10; and/or
m is 2-20.
6. The method according to claim 5, wherein: n is 3-8; and/or
m is 3-10.
7. The method according to any one of claims 1-2, 5-6, wherein: the flow regulating valve (8) is a remote execution control electromagnetic valve.
8. The method according to claim 4, wherein: the static disc (602) is of a hollow circular cake-shaped structure, one side of the static disc (602) close to the dynamic disc (603) is provided with an annular steam outlet (60201), and the air inlet end of the steam conveying main pipe (501) corresponds to the annular steam outlet (60201).
9. The method according to any one of claims 1-2, 5-6, 8, wherein: the steam spraying pipe (504) is one or more of a straight pipe type, a T pipe type and a hemispherical pipe type, and a steam spraying hole (50401) is arranged at one end of the steam spraying pipe (504) extending into the kiln body (1).
10. The method according to any one of claims 1-2, 5-6, 8, wherein: the control system (K) is connected with the driving device (4), the flow monitoring device (7), the flow regulating valve (8), the temperature monitoring device (9), the main pipe control valve (60101) and the gas flow monitoring device (10), and controls the flow regulating valve (8) and the main pipe control valve (60101).
11. The method according to any one of claims 1-2, 5-6, 8, wherein: the method is used for preparing the activated carbon.
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| CN201711044150.2A CN108120272B (en) | 2017-10-31 | 2017-10-31 | Annular multitube embedded type step steam-spraying activation kiln device and control method and application thereof |
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| CN201711044150.2A CN108120272B (en) | 2017-10-31 | 2017-10-31 | Annular multitube embedded type step steam-spraying activation kiln device and control method and application thereof |
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| CN108120272B true CN108120272B (en) | 2024-03-12 |
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| CN113969344B (en) * | 2020-07-23 | 2023-04-28 | 中冶长天国际工程有限责任公司 | Proportioning method of gas-steam coupling injection process of sintering machine |
| CN113173686B (en) * | 2021-04-26 | 2024-06-21 | 徐州无废城市技术研究院有限公司 | Comprehensive treatment system and method for oil sludge |
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| JP2003277038A (en) * | 2002-03-27 | 2003-10-02 | Taiheiyo Cement Corp | Carbonization/activation apparatus and method for manufacturing activated carbonized object |
| CN201330160Y (en) * | 2009-01-13 | 2009-10-21 | 王泽奎 | Inner-heated rotation activating oven |
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