CN117516182B - Preheating device and preheating method for roasting rotary kiln - Google Patents
Preheating device and preheating method for roasting rotary kiln Download PDFInfo
- Publication number
- CN117516182B CN117516182B CN202311586358.2A CN202311586358A CN117516182B CN 117516182 B CN117516182 B CN 117516182B CN 202311586358 A CN202311586358 A CN 202311586358A CN 117516182 B CN117516182 B CN 117516182B
- Authority
- CN
- China
- Prior art keywords
- wall
- fixedly connected
- sleeve
- mounting
- sliding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000009434 installation Methods 0.000 claims abstract description 21
- 230000009471 action Effects 0.000 claims abstract description 15
- 238000007789 sealing Methods 0.000 claims description 28
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 22
- 239000003546 flue gas Substances 0.000 claims description 22
- 238000007599 discharging Methods 0.000 claims description 11
- 238000009413 insulation Methods 0.000 claims description 10
- 238000004321 preservation Methods 0.000 claims description 8
- 238000005192 partition Methods 0.000 claims description 7
- 239000000779 smoke Substances 0.000 abstract description 9
- 238000010438 heat treatment Methods 0.000 abstract description 3
- 229910021646 siderite Inorganic materials 0.000 description 6
- 238000001354 calcination Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002912 waste gas Substances 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
- F27D13/00—Apparatus for preheating charges; Arrangements for preheating charges
-
- 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
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/06—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity heated without contact between combustion gases and charge; electrically heated
- F27B9/10—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity heated without contact between combustion gases and charge; electrically heated heated by hot air or gas
-
- 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
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/14—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
- F27B9/16—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a circular or arcuate path
-
- 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
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
- F27B9/36—Arrangements of heating devices
-
- 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
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Muffle Furnaces And Rotary Kilns (AREA)
Abstract
The invention discloses a preheating device and a preheating method for a roasting rotary kiln. The ball screw pair and the connecting shaft are driven by the motor to rotate simultaneously, the helical blade is driven by the gear teeth to rotate, the object to be roasted is conveyed, when the ball screw pair rotates, under the action of suction, smoke enters the installation sleeve through the connecting sleeve, when the connecting rod pushes the piston to slide downwards, the smoke inside the installation sleeve is compressed, the smoke is discharged onto the helical blade through the plurality of second exhaust pipes, the object to be roasted on the helical blade can be heated, the contact area of the smoke and the object to be roasted can be fully improved by the design, the heating efficiency of the object to be roasted is improved, and the heat loss is reduced.
Description
Technical Field
The invention relates to the field of rotary kiln preheating, in particular to a preheating device and a preheating method for a roasting rotary kiln.
Background
The magnetizing roasting process of iron ore includes shaft furnace and rotary kiln. The shaft furnace method is mainly used for roasting lump ores with the grain size of 30-70mm, the production capacity is low, and lump ores with the grain size of less than 25mm are mainly produced by adopting the rotary kiln method process, so that the production capacity is high.
In the prior art, as in the document with publication number CN103045848A, a preheating device for a siderite magnetizing roasting rotary kiln and a block ore preheating method are specifically disclosed, when the device in the document is used, siderite enters a storage bin from a feed port, siderite in the storage bin enters a preheating chamber corresponding to the siderite through a blanking chute, siderite is filled in the preheating chamber, high-temperature flue gas at the kiln tail of the rotary kiln enters the preheating chamber in a countercurrent way from the blanking chute under the action of an exhaust draught fan, the temperature of the high-temperature flue gas entering the preheating chamber is 500-600 ℃, the high-temperature flue gas flow and the siderite are in countercurrent heat transfer in the preheating chamber to finish heat transfer in a separated chamber heat exchange mode, but objects to be roasted in the device are intensively piled in the preheating chamber, so that the countercurrent high-temperature flue gas is difficult to fully contact with objects to be roasted in the preheating chamber, and the objects to be roasted are difficult to be fully preheated, so that the preheating efficiency is lower, and the heat loss is larger.
Disclosure of Invention
The present application aims to solve at least one of the technical problems existing in the prior art. Therefore, the preheating device and the preheating method for the roasting rotary kiln provided by the application have the advantages that the gear is driven to rotate through the connecting shaft, the gear drives the spiral blade to rotate through the gear teeth, the gear is discharged onto the spiral blade through the plurality of second exhaust pipes, the object to be roasted on the spiral blade can be heated, the contact area between smoke and the object to be roasted can be fully increased, the heating efficiency of the object to be roasted is improved, and the heat loss is reduced.
The utility model provides a roasting rotary kiln is with preheating device, includes the shell subassembly, install drive assembly on the shell subassembly, conveying assembly is installed to shell subassembly inner wall, drive assembly is connected with conveying assembly, shell subassembly is connected with drive assembly, shell subassembly is used for holding the thing of waiting to roast, conveying assembly is used for injecting the steam into in the shell subassembly.
As a preferable scheme of the preheating device for the roasting rotary kiln, the invention comprises the following steps: the shell assembly comprises a heat preservation sleeve, a mounting cylinder is arranged inside the heat preservation sleeve, a mounting hole is formed in the circumferential outer wall of the mounting cylinder, a discharging hopper is fixedly connected to the bottom of the mounting cylinder, a feeding hopper is fixedly connected to the top of the mounting cylinder, a feeding pipe is fixedly connected to the circumferential outer wall of the feeding hopper, a discharging pipe is fixedly connected to the bottom of the discharging hopper, a partition plate is fixedly connected to the inner wall of the heat preservation sleeve, and a plurality of first exhaust pipes are fixedly connected to the top of the partition plate at equal intervals along the circumferential direction.
As a preferable scheme of the preheating device for the roasting rotary kiln, the invention comprises the following steps: the shell assembly further comprises a spiral blade, the inner wall of the mounting cylinder is rotationally connected with a rotating sleeve, the inner wall of the rotating sleeve is fixedly connected with the outer ring wall of the spiral blade, and the outer ring wall of the spiral blade is fixedly connected with a plurality of gear teeth in a spiral structure.
As a preferable scheme of the preheating device for the roasting rotary kiln, the invention comprises the following steps: the spiral blade top surface is provided with a spiral inclined plane, and the cross section of the spiral inclined plane is obliquely arranged from inside to outside.
As a preferable scheme of the preheating device for the roasting rotary kiln, the invention comprises the following steps: the driving assembly comprises an installation table, the installation table is sleeved on the outer wall of the blanking pipe and fixedly connected with the installation table, a motor is fixedly connected to the bottom of the installation table, a ball screw pair is rotationally connected to the top of the installation table, an output end of the top of the motor is fixedly connected with the ball screw pair, a connecting shaft is fixedly connected to the top of the ball screw pair, the connecting shaft extends into the heat insulation sleeve, a gear is fixedly connected to the circumference outer wall of the connecting shaft, the gear is meshed with a plurality of gear teeth, a connecting arm is fixedly connected to the outer wall of a screw nut on the ball screw pair, a connecting groove is formed in the top of the connecting arm, a swing arm is rotationally connected to the inner wall of the connecting groove through a connecting rod, a sliding hole is formed in the outer wall of the swing arm, and the inner wall of the sliding hole is slidingly connected with a rotating shaft.
As a preferable scheme of the preheating device for the roasting rotary kiln, the invention comprises the following steps: the driving assembly further comprises a mounting frame and a sliding plate, one end of the mounting frame is fixedly connected with the outer wall of the insulation sleeve, the top of the mounting frame is fixedly connected with a supporting frame, and the supporting frame is rotationally connected with the swing arm.
As a preferable scheme of the preheating device for the roasting rotary kiln, the invention comprises the following steps: the inner side of the sliding plate is fixedly connected with the outer wall of the heat preservation sleeve, the inner wall of the sliding plate is slidably connected with a connecting plate, the outer wall of the connecting plate is fixedly connected with a sliding sleeve, and the sliding sleeve is sleeved on the outer wall of the connecting arm and fixedly connected with the connecting arm.
As a preferable scheme of the preheating device for the roasting rotary kiln, the invention comprises the following steps: the conveying assembly comprises a mounting sleeve, a plurality of second exhaust pipes are spirally fixedly connected to the circumference outer wall of the mounting sleeve, the second exhaust pipes are respectively arranged along spiral inclined planes in a spiral mode, a plurality of check valves are fixedly connected to the circumference outer wall of the second exhaust pipes, the inner wall of the mounting sleeve is slidably connected with a piston, the top of the piston is fixedly connected with a connecting rod, the top of the connecting rod penetrates through a mounting frame and is slidably connected with the mounting frame, the upper end of the connecting rod is rotationally connected with a rotating shaft, a top cover is fixedly connected with a top cover, the top cover is fixedly connected with the inner wall of a feeding hopper, the top cover top is fixedly connected with the other end of the mounting frame, and the top cover is penetrated through the top cover and is slidably connected with the top cover.
As a preferable scheme of the preheating device for the roasting rotary kiln, the invention comprises the following steps: the conveying assembly further comprises an air inlet hopper, the top of the air inlet hopper is fixedly connected with a connecting sleeve, the inner wall of the connecting sleeve is slidably connected with a sealing plug, the inner wall of the air inlet hopper is provided with a fixing sleeve, the circumference outer wall of the fixing sleeve is slidably connected with a sliding rod, the top of the sliding rod is fixedly connected with the sealing plug, the circumference outer wall of the fixing sleeve is fixedly connected with a plurality of fixing rods in an annular structure, the outer walls of the fixing rods are fixedly connected with the inner wall of the air inlet hopper respectively, the circumference outer wall of the sliding rod is sleeved with a spring, and two ends of the spring are fixedly connected with the sealing plug and the fixing sleeve respectively.
The application method of the preheating device for the roasting rotary kiln comprises the following steps:
S1, putting an object to be roasted into an installation cylinder through a feed pipe, driving a ball screw pair and a connecting shaft to rotate simultaneously through a motor, driving a gear to rotate through the connecting shaft, and driving a spiral blade to rotate through gear teeth by the gear, so that the spiral blade drives a rotating sleeve to rotate, and the object to be roasted can be conveyed when the spiral blade rotates;
s2, when the ball screw pair rotates, the ball nut on the outer wall of the ball screw pair can drive the connecting arm to reciprocate up and down, when the connecting arm moves, the swing arm is driven to vertically undulate and rotate, when the connecting arm moves, the sliding sleeve is driven to move, and the sliding sleeve slides along the inner wall of the sliding plate through the connecting plate;
S3, driving a connecting rod to slide up and down in a reciprocating manner through a swing arm, driving a piston to slide along the inner wall of a mounting sleeve through the connecting rod, and generating suction force on the inner wall of the mounting sleeve when the piston slides up along the inner wall of the mounting sleeve, wherein a sealing plug slides to the upper part of a connecting sleeve, and high-temperature flue gas at the kiln tail of a rotary kiln flows back into a blanking pipe from a blanking chute under the action of an exhaust draught fan, and the flue gas enters the inside of the mounting sleeve through the connecting sleeve under the action of the suction force;
S4, when the connecting rod pushes the piston to slide downwards, at the moment, under the action of the tensile force of the spring, the sealing plug slides into the connecting sleeve, the connecting sleeve is sealed through the sealing plug, smoke inside the mounting sleeve is compressed at the moment, and the smoke is discharged onto the spiral blade through the plurality of second exhaust pipes, so that the object to be roasted on the spiral blade can be heated.
Compared with the prior art, the invention has the following beneficial effects:
the device comprises a mounting cylinder, a connecting shaft, a ball screw pair, a connecting shaft, a connecting rod, a connecting sleeve, a connecting rod, a sealing plug, a spiral blade, a plurality of second exhaust pipes, a plurality of spiral blades, a connecting rod, a piston, a rotary kiln tail, a waste gas induced draft fan, a discharging chute, a connecting sleeve and a sealing plug.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present application and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic view of the housing assembly and transport assembly of the present invention;
FIG. 3 is a schematic view of the internal structure of the present invention;
FIG. 4 is a schematic view of the housing assembly of the present invention;
FIG. 5 is a schematic view of the structure of a helical blade according to the present invention;
FIG. 6 is a schematic diagram of a driving assembly according to the present invention;
FIG. 7 is a schematic view of the structure of the conveying assembly of the present invention;
fig. 8 is a schematic view of the mounting structure of the sealing plug of the present invention.
The reference numerals in the figures illustrate: 1. a housing assembly; 101. a thermal insulation sleeve; 102. discharging pipes; 103. a mounting cylinder; 104. a mounting hole; 105. discharging a hopper; 106. feeding a hopper; 107. a partition plate; 108. a first exhaust pipe; 109. a feed pipe; 110. a helical blade; 111. gear teeth; 112. a spiral inclined plane; 113. a rotating sleeve; 2. a drive assembly; 201. a mounting table; 202. a motor; 203. a ball screw pair; 204. a connecting shaft; 205. a gear; 206. a connecting arm; 207. a connecting groove; 208. swing arms; 209. a slide hole; 210. a rotating shaft; 211. a mounting frame; 212. a support frame; 213. a slide plate; 214. a connecting plate; 215. a sliding sleeve; 3. a transport assembly; 301. a mounting sleeve; 302. a second exhaust pipe; 303. a one-way valve; 304. a piston; 305. a connecting rod; 306. a top cover; 307. an air inlet hopper; 308. connecting sleeves; 309. a sealing plug; 310. a slide bar; 311. a fixed sleeve; 312. a fixed rod; 313. and (3) a spring.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art without creative efforts, based on the embodiments of the present application are within the protection scope of the present application, and the detailed description of the specific embodiments of the present application is provided below with reference to the attached drawings.
Embodiment one:
As shown in fig. 1, 2 and 3, a preheating device for a roasting rotary kiln comprises a housing assembly 1, wherein a driving assembly 2 is arranged on the housing assembly 1, a conveying assembly 3 is arranged on the inner wall of the housing assembly 1, the driving assembly 2 is connected with the conveying assembly 3, the housing assembly 1 is connected with the driving assembly 2, the housing assembly 1 is used for containing objects to be roasted, and the conveying assembly 3 is used for injecting hot gas into the housing assembly 1.
Can drive shell subassembly 1 and conveying component 3 operation simultaneously through drive assembly 2, can treat the calcination thing and carry out screw conveying through shell subassembly 1 operation, can evenly carry the flue gas to shell subassembly 1 in through conveying component 3 operation for the flue gas can fully with treat the calcination thing abundant contact, can fully improve the flue gas and treat the area of contact of calcination thing, improve the heating efficiency of treating the calcination thing, reduce the heat loss.
Embodiment two:
the present embodiment is based on the first embodiment, and differs from the first embodiment in that:
As shown in fig. 4 and 5, the housing assembly 1 comprises a thermal insulation sleeve 101, wherein a mounting cylinder 103 is arranged in the thermal insulation sleeve 101, mounting holes 104 are formed in the circumferential outer wall of the mounting cylinder 103, a blanking hopper 105 is fixedly connected to the bottom of the mounting cylinder 103, a feeding hopper 106 is fixedly connected to the top of the mounting cylinder 103, a feeding pipe 109 is fixedly connected to the circumferential outer wall of the feeding hopper 106, a blanking pipe 102 is fixedly connected to the bottom of the blanking hopper 105, a partition plate 107 is fixedly connected to the inner wall of the thermal insulation sleeve 101, and a plurality of first exhaust pipes 108 are fixedly connected to the top of the partition plate 107 at equal intervals along the circumferential direction;
The shell assembly 1 further comprises a spiral blade 110, the inner wall of the mounting cylinder 103 is rotationally connected with a rotating sleeve 113, the inner wall of the rotating sleeve 113 is fixedly connected with the outer ring wall of the spiral blade 110, and the outer ring wall of the spiral blade 110 is fixedly connected with a plurality of gear teeth 111 in a spiral structure;
The spiral inclined plane 112 is formed on the top surface of the spiral blade 110, the cross section of the spiral inclined plane 112 is inclined from inside to outside, and the design can enable the object to be roasted to be conveyed against the inner wall of the mounting cylinder 103, so that the object to be roasted is prevented from falling from the middle of the spiral blade 110;
the to-be-roasted object is put into the installation cylinder 103 through the feeding pipe 109, the driving assembly 2 drives the spiral blade 110 to rotate through the gear teeth 111, the spiral blade 110 drives the rotating sleeve 113 to rotate, and the to-be-roasted object can be conveyed when the spiral blade 110 rotates.
Embodiment III:
the present embodiment is based on the second embodiment, and differs from the second embodiment in that:
As shown in fig. 6, the driving assembly 2 comprises a mounting table 201, the mounting table 201 is sleeved on the outer wall of the blanking pipe 102 and fixedly connected with the outer wall of the blanking pipe, a motor 202 is fixedly connected to the bottom of the mounting table 201, a ball screw pair 203 is rotationally connected to the top of the mounting table 201, the output end of the top of the motor 202 is fixedly connected with the ball screw pair 203, a connecting shaft 204 is fixedly connected to the top of the ball screw pair 203, the connecting shaft 204 extends into the insulation sleeve 101, a gear 205 is fixedly connected to the circumferential outer wall of the connecting shaft 204, the gear 205 is meshed with a plurality of gear teeth 111, a connecting arm 206 is fixedly connected to the outer wall of a screw nut on the ball screw pair 203, a connecting groove 207 is formed in the top of the connecting arm 206, a swing arm 208 is rotationally connected to the inner wall of the connecting groove 207 through a connecting rod, a slide hole 209 is formed in the outer wall of the swing arm 208, the connecting rod is in sliding connection with the inner wall of the slide hole 209, and a rotating shaft 210 is fixedly connected to the inner end of the swing arm 208;
The driving assembly 2 further comprises a mounting frame 211 and a sliding plate 213, one end of the mounting frame 211 is fixedly connected with the outer wall of the heat insulation sleeve 101, the top of the mounting frame 211 is fixedly connected with a supporting frame 212, the supporting frame 212 is rotationally connected with the swing arm 208, one inner side of the sliding plate 213 is fixedly connected with the outer wall of the heat insulation sleeve 101, the inner wall of the sliding plate 213 is slidably connected with a connecting plate 214, the outer wall of the connecting plate 214 is fixedly connected with a sliding sleeve 215, the sliding sleeve 215 is sleeved on the outer wall of the connecting arm 206 and fixedly connected with the connecting arm 206, and the moving stability of the connecting arm 206 can be improved by arranging the sliding plate 213, the connecting plate 214 and the sliding sleeve 215.
The motor 202 drives the ball screw pair 203 and the connecting shaft 204 to rotate simultaneously, the connecting shaft 204 drives the gear 205 to rotate, the gear 205 drives the helical blade 110 to rotate through the gear teeth 111, when the ball screw pair 203 rotates, the ball nut on the outer wall of the ball screw pair can drive the connecting arm 206 to reciprocate up and down, when the connecting arm 206 moves, the swing arm 208 is driven to rotate up and down, when the connecting arm 206 moves, the sliding sleeve 215 is driven to move, the sliding sleeve 215 slides along the inner wall of the sliding plate 213 through the connecting plate 214, and linkage between structures can be realized through the design.
Embodiment four:
the present embodiment is based on the third embodiment, and differs from the third embodiment in that:
As shown in fig. 7 and 8, the conveying assembly 3 comprises a mounting sleeve 301, wherein the circumferential outer wall of the mounting sleeve 301 is spirally and fixedly connected with a plurality of second exhaust pipes 302, the plurality of second exhaust pipes 302 are respectively spirally arranged along a spiral inclined plane 112, so that flue gas can fully contact with a to-be-roasted object on the spiral blade 110, the circumferential outer walls of the plurality of second exhaust pipes 302 are fixedly connected with one-way valves 303, the inner wall of the mounting sleeve 301 is slidably connected with a piston 304, the top of the piston 304 is fixedly connected with a connecting rod 305, the top of the connecting rod 305 penetrates through a mounting frame 211 and is slidably connected with the mounting frame 211, the upper end of the connecting rod 305 is rotatably connected with a rotating shaft 210, the top of the mounting sleeve 301 is fixedly connected with a top cover 306, the top of the top cover 306 is fixedly connected with the other end of the mounting frame 211, and the top of the connecting rod 305 penetrates through the top cover 306 and is slidably connected with the top cover 306;
The conveying assembly 3 further comprises an air inlet hopper 307, the top of the air inlet hopper 307 is fixedly connected with a connecting sleeve 308, the inner wall of the connecting sleeve 308 is slidably connected with a sealing plug 309, the inner wall of the air inlet hopper 307 is provided with a fixing sleeve 311, the circumference outer wall of the fixing sleeve 311 is slidably connected with a sliding rod 310, the top of the sliding rod 310 is fixedly connected with the sealing plug 309, the circumference outer wall of the fixing sleeve 311 is fixedly connected with a plurality of fixing rods 312 in an annular structure, the outer walls of the plurality of fixing rods 312 are respectively fixedly connected with the inner wall of the air inlet hopper 307, the circumference outer wall of the sliding rod 310 is sleeved with a spring 313, and two ends of the spring 313 are respectively connected with the sealing plug 309 and the fixing sleeve 311.
The connecting rod 305 is driven to slide up and down in a reciprocating manner through the swing arm 208, the piston 304 is driven to slide along the inner wall of the mounting sleeve 301 through the connecting rod 305, when the piston 304 slides upwards along the inner wall of the mounting sleeve 301, suction force is generated on the inner wall of the mounting sleeve 301, the sealing plug 309 slides to the upper part of the connecting sleeve 308, when the connecting rod 305 pushes the piston 304 to slide downwards, under the action of the pulling force of the spring 313, the sealing plug 309 slides into the connecting sleeve 308, and the connecting sleeve 308 is sealed through the sealing plug 309.
Fifth embodiment:
The present embodiment is based on the fourth embodiment, and differs from the fourth embodiment in that: the embodiment discloses a use method of a preheating device for a roasting rotary kiln, which comprises the following steps:
S1, putting a to-be-roasted object into the mounting cylinder 103 through the feeding pipe 109, driving the ball screw pair 203 and the connecting shaft 204 to rotate simultaneously through the motor 202, driving the gear 205 to rotate through the connecting shaft 204, and driving the spiral blade 110 to rotate through the gear teeth 111 by the gear 205, so that the spiral blade 110 drives the rotating sleeve 113 to rotate, and the to-be-roasted object can be conveyed when the spiral blade 110 rotates;
S2, when the ball screw pair 203 rotates, a ball nut on the outer wall of the ball screw pair can drive the connecting arm 206 to reciprocate up and down, when the connecting arm 206 moves, the swing arm 208 is driven to vertically undulate and rotate, when the connecting arm 206 moves, the sliding sleeve 215 is driven to move, and the sliding sleeve 215 slides along the inner wall of the sliding plate 213 through the connecting plate 214;
S3, driving a connecting rod 305 to slide up and down in a reciprocating manner through a swing arm 208, driving a piston 304 to slide along the inner wall of a mounting sleeve 301 through the connecting rod 305, and enabling the piston 304 to slide upwards along the inner wall of the mounting sleeve 301, wherein suction is generated on the inner wall of the mounting sleeve 301, a sealing plug 309 slides to the upper part of a connecting sleeve 308, high-temperature flue gas at the kiln tail of the rotary kiln reversely flows into a discharging pipe 102 from a discharging chute under the action of an exhaust draught fan, and the flue gas enters the mounting sleeve 301 through the connecting sleeve 308 under the action of the suction;
s4, when the connecting rod 305 pushes the piston 304 to slide downwards, at the moment, under the action of the tensile force of the spring 313, the sealing plug 309 slides into the connecting sleeve 308, the connecting sleeve 308 is sealed through the sealing plug 309, at the moment, the smoke inside the mounting sleeve 301 is compressed, and the smoke is discharged onto the spiral blade 110 through the plurality of second exhaust pipes 302, so that the object to be roasted on the spiral blade 110 can be heated.
Working principle: putting the object to be roasted into the installation cylinder 103 through the feeding pipe 109, driving the ball screw pair 203 and the connecting shaft 204 to rotate simultaneously through the motor 202, driving the gear 205 to rotate through the connecting shaft 204, driving the spiral blade 110 to rotate through the gear teeth 111, enabling the spiral blade 110 to drive the rotating sleeve 113 to rotate, conveying the object to be roasted when the spiral blade 110 rotates, driving the connecting arm 206 to reciprocate up and down through a ball nut on the outer wall of the ball screw pair 203 when the ball screw pair 203 rotates, driving the swing arm 208 to undulate up and down when the connecting arm 206 moves, driving the sliding sleeve 215 to move when the connecting arm 206 moves, and sliding the sliding sleeve 215 along the inner wall of the sliding plate 213 through the connecting plate 214;
The connecting rod 305 is driven to reciprocate up and down through the swing arm 208, the piston 304 is driven to slide along the inner wall of the installation sleeve 301 through the connecting rod 305, when the piston 304 slides upwards along the inner wall of the installation sleeve 301, suction force is generated on the inner wall of the installation sleeve 301, at the moment, the sealing plug 309 slides to the upper part of the connecting sleeve 308, and high-temperature flue gas at the tail of the rotary kiln flows back into the blanking pipe 102 from the blanking chute under the action of the exhaust draught fan, under the action of the suction force, the flue gas enters the installation sleeve 301 through the connecting sleeve 308, when the connecting rod 305 pushes the piston 304 to slide downwards, at the moment, under the action of the pulling force of the spring 313, the sealing plug 309 slides into the connecting sleeve 308, the connecting sleeve 308 is sealed through the sealing plug 309, at the moment, the flue gas inside the installation sleeve 301 is compressed, the flue gas is discharged to the helical blade 110 through the plurality of second exhaust pipes 302, the heated flue gas is discharged through the plurality of first exhaust pipes 108, the preheated flue gas to the helical blade 110 is orderly rolled into the blanking pipe 102, and finally fed into the rotary kiln.
It should be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
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 spirit and scope of the invention as defined by the appended claims and their equivalents.
Claims (3)
1. The preheating device for the roasting rotary kiln comprises a shell assembly (1), and is characterized in that: the device comprises a shell assembly (1), wherein a driving assembly (2) is arranged on the shell assembly (1), a conveying assembly (3) is arranged on the inner wall of the shell assembly (1), the driving assembly (2) is connected with the conveying assembly (3), the shell assembly (1) is connected with the driving assembly (2), the shell assembly (1) is used for containing objects to be roasted, and the conveying assembly (3) is used for injecting hot air into the shell assembly (1);
The shell assembly (1) comprises a heat preservation sleeve (101), an installation cylinder (103) is arranged inside the heat preservation sleeve (101), an installation hole (104) is formed in the circumferential outer wall of the installation cylinder (103), a lower hopper (105) is fixedly connected to the bottom of the installation cylinder (103), an upper hopper (106) is fixedly connected to the top of the installation cylinder (103), a feeding pipe (109) is fixedly connected to the circumferential outer wall of the upper hopper (106), a discharging pipe (102) is fixedly connected to the bottom of the lower hopper (105), a partition plate (107) is fixedly connected to the inner wall of the heat preservation sleeve (101), and a plurality of first exhaust pipes (108) are fixedly connected to the top of the partition plate (107) at equal intervals along the circumferential direction;
The shell assembly (1) further comprises a spiral blade (110), the inner wall of the mounting cylinder (103) is rotationally connected with a rotating sleeve (113), the inner wall of the rotating sleeve (113) is fixedly connected with the outer ring wall of the spiral blade (110), and the outer ring wall of the spiral blade (110) is fixedly connected with a plurality of gear teeth (111) in a spiral structure;
The driving assembly (2) comprises a mounting table (201), the mounting table (201) is sleeved on the outer wall of the blanking pipe (102) and fixedly connected with the mounting table, a motor (202) is fixedly connected to the bottom of the mounting table (201), a ball screw pair (203) is rotationally connected to the top of the mounting table (201), an output end at the top of the motor (202) is fixedly connected with the ball screw pair (203), a connecting shaft (204) is fixedly connected to the top of the ball screw pair (203), the connecting shaft (204) extends into the insulating sleeve (101), a gear (205) is fixedly connected to the circumferential outer wall of the connecting shaft (204), the gear (205) is meshed with a plurality of gear teeth (111), a connecting arm (206) is fixedly connected to the outer wall of a screw nut on the ball screw pair (203), a connecting groove (207) is formed in the top of the connecting arm (206), a sliding hole (209) is formed in the outer wall of the connecting arm, the connecting rod is rotationally connected with a swing arm (208) through a connecting rod, and the inner wall of the connecting rod is in sliding connection with the swing arm (208), and the swing arm (210) is fixedly connected with the inner end (210);
the driving assembly (2) further comprises a mounting frame (211) and a sliding plate (213), one end of the mounting frame (211) is fixedly connected with the outer wall of the insulation sleeve (101), a supporting frame (212) is fixedly connected to the top of the mounting frame (211), and the supporting frame (212) is rotatably connected with the swing arm (208);
The inner side of the sliding plate (213) is fixedly connected with the outer wall of the heat preservation sleeve (101), the inner wall of the sliding plate (213) is slidably connected with a connecting plate (214), the outer wall of the connecting plate (214) is fixedly connected with a sliding sleeve (215), and the sliding sleeve (215) is sleeved on the outer wall of the connecting arm (206) and fixedly connected with the connecting arm;
The conveying assembly (3) comprises a mounting sleeve (301), the circumference outer wall of the mounting sleeve (301) is fixedly connected with a plurality of second exhaust pipes (302) in a spiral shape, the circumference outer walls of the second exhaust pipes (302) are fixedly connected with one-way valves (303), the inner wall of the mounting sleeve (301) is slidably connected with a piston (304), the top of the piston (304) is fixedly connected with a connecting rod (305), the top of the connecting rod (305) penetrates through a mounting frame (211) and is slidably connected with the mounting frame, the upper end of the connecting rod (305) is rotatably connected with a rotating shaft (210), the top of the mounting sleeve (301) is fixedly connected with a top cover (306), the top cover (306) is fixedly connected with the inner wall of a feeding hopper (106), the top of the top cover (306) is fixedly connected with the other end of the mounting frame (211), and the top of the connecting rod (305) penetrates through the top cover (306) and is slidably connected with the connecting rod.
The conveying assembly (3) further comprises an air inlet hopper (307), the top of the air inlet hopper (307) is fixedly connected with a connecting sleeve (308), the inner wall of the connecting sleeve (308) is slidably connected with a sealing plug (309), the inner wall of the air inlet hopper (307) is provided with a fixing sleeve (311), the circumferential outer wall of the fixing sleeve (311) is slidably connected with a sliding rod (310), the top of the sliding rod (310) is fixedly connected with the sealing plug (309), the circumferential outer wall of the fixing sleeve (311) is fixedly connected with a plurality of fixing rods (312) in an annular structure, the outer walls of the fixing rods (312) are fixedly connected with the inner wall of the air inlet hopper (307) respectively, the circumferential outer wall of the sliding rod (310) is sleeved with a spring (313), and two ends of the spring (313) are fixedly connected with the sealing plug (309) and the fixing sleeve (311) respectively.
2. The preheating device for a rotary kiln according to claim 1, wherein: the top surface of the spiral blade (110) is provided with a spiral inclined surface (112), the cross section of the spiral inclined surface (112) is obliquely arranged from inside to outside, and a plurality of second exhaust pipes (302) are respectively spirally arranged along the spiral inclined surface (112).
3. The method of using a preheating device for a rotary kiln according to claim 2, comprising the steps of:
S1, feeding a to-be-roasted object into an installation cylinder (103) through a feed pipe (109), driving a ball screw pair (203) and a connecting shaft (204) to rotate simultaneously through a motor (202), driving a gear (205) to rotate through the connecting shaft (204), and driving a spiral blade (110) to rotate through gear teeth (111) by the gear (205), so that the spiral blade (110) drives a rotating sleeve (113) to rotate, and conveying the to-be-roasted object when the spiral blade (110) rotates;
S2, when the ball screw pair (203) rotates, a ball nut on the outer wall of the ball screw pair can drive the connecting arm (206) to reciprocate up and down, when the connecting arm (206) moves, the swing arm (208) is driven to vertically undulate and rotate, when the connecting arm (206) moves, the sliding sleeve (215) is driven to move, and the sliding sleeve (215) slides along the inner wall of the sliding plate (213) through the connecting plate (214);
S3, driving a connecting rod (305) to slide up and down in a reciprocating manner through a swing arm (208), driving a piston (304) to slide along the inner wall of a mounting sleeve (301) through the connecting rod (305), and enabling the flue gas to enter the discharging pipe (102) in a countercurrent manner through a discharging chute under the action of an exhaust draught fan when the piston (304) slides up along the inner wall of the mounting sleeve (301), wherein suction is generated on the inner wall of the mounting sleeve (301), a sealing plug (309) slides to the upper part of a connecting sleeve (308), and flue gas enters the inside of the mounting sleeve (301) through the connecting sleeve (308) under the action of suction;
S4, when the connecting rod (305) pushes the piston (304) to slide downwards, at the moment, under the action of the tensile force of the spring (313), the sealing plug (309) slides into the connecting sleeve (308), the connecting sleeve (308) is sealed through the sealing plug (309), the flue gas in the mounting sleeve (301) is compressed at the moment, and the flue gas is discharged onto the spiral blade (110) through the plurality of second exhaust pipes (302), so that the to-be-roasted objects on the spiral blade (110) can be heated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311586358.2A CN117516182B (en) | 2023-11-27 | 2023-11-27 | Preheating device and preheating method for roasting rotary kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311586358.2A CN117516182B (en) | 2023-11-27 | 2023-11-27 | Preheating device and preheating method for roasting rotary kiln |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117516182A CN117516182A (en) | 2024-02-06 |
| CN117516182B true CN117516182B (en) | 2024-05-17 |
Family
ID=89766067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311586358.2A Active CN117516182B (en) | 2023-11-27 | 2023-11-27 | Preheating device and preheating method for roasting rotary kiln |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117516182B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209181543U (en) * | 2018-12-14 | 2019-07-30 | 榆林职业技术学院 | A kind of magnesium ore calcining rotary kiln flue gas waste heat recyclable device |
| CN210180084U (en) * | 2019-05-24 | 2020-03-24 | 东源辉科建材发展有限公司 | Drying-machine is used in white cement production |
| CN217005377U (en) * | 2022-04-01 | 2022-07-19 | 南京苏冶钙业技术有限公司 | Vertical annular preheating calcining kiln and rotary kiln calcining system for two-stage calcining |
| CN217442246U (en) * | 2021-12-03 | 2022-09-16 | 南京苏冶钙业技术有限公司 | Granular material calcining system for vertical preheater-rotary kiln-vertical cooler block |
| CN116294570A (en) * | 2023-04-03 | 2023-06-23 | 内蒙古景蕾实业有限公司 | Medium-low grade manganese ore pretreatment rotary kiln and feeding system |
-
2023
- 2023-11-27 CN CN202311586358.2A patent/CN117516182B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209181543U (en) * | 2018-12-14 | 2019-07-30 | 榆林职业技术学院 | A kind of magnesium ore calcining rotary kiln flue gas waste heat recyclable device |
| CN210180084U (en) * | 2019-05-24 | 2020-03-24 | 东源辉科建材发展有限公司 | Drying-machine is used in white cement production |
| CN217442246U (en) * | 2021-12-03 | 2022-09-16 | 南京苏冶钙业技术有限公司 | Granular material calcining system for vertical preheater-rotary kiln-vertical cooler block |
| CN217005377U (en) * | 2022-04-01 | 2022-07-19 | 南京苏冶钙业技术有限公司 | Vertical annular preheating calcining kiln and rotary kiln calcining system for two-stage calcining |
| CN116294570A (en) * | 2023-04-03 | 2023-06-23 | 内蒙古景蕾实业有限公司 | Medium-low grade manganese ore pretreatment rotary kiln and feeding system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117516182A (en) | 2024-02-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106871577B (en) | Microwave material drying device and microwave material drying method | |
| CN201403468Y (en) | Oil-gas dual-purpose feed ripening machine | |
| CN108397996A (en) | A kind of good drying equipment of using effect for new material processing | |
| CN106766689B (en) | Microwave material drying device | |
| CN105410965B (en) | A kind of energy saving drum grain and oil seeds frying machine | |
| CN202425574U (en) | Coffee bean baking machine | |
| CN117516182B (en) | Preheating device and preheating method for roasting rotary kiln | |
| CN201096447Y (en) | Highly effective energy-saving drying-machine | |
| CN207175864U (en) | Turn round pyrolysis oven multicell eddy flow step high efficient heat exchanging system | |
| CN113203277A (en) | Spiral material drying equipment | |
| CN207011655U (en) | Preserved kiwi fruit drying plant | |
| CN203011095U (en) | Steam drawer type tray dryer | |
| CN112082367A (en) | Continuous superheated steam drying equipment and method | |
| CN209588626U (en) | A kind of grate type drier | |
| CN111121420A (en) | Hot air flow fertilizer drying device | |
| CN206472802U (en) | A kind of normal pressure hot blast chain type drying baker | |
| CN201805869U (en) | Heat superconducting air type tea green removing machine | |
| CN107129815A (en) | Turn round pyrolysis oven multicell eddy flow step high efficient heat exchanging system | |
| CN203555096U (en) | Heat-conductive oil roller roasting machine | |
| CN210051149U (en) | Backheating type powder heat treatment device | |
| CN211999569U (en) | Continuous living beings carbomorphism system of horizontal rotary drum more than two layers | |
| CN203212472U (en) | Expanded and vitrified small ball production line with waste heat control device | |
| CN211451896U (en) | Flue gas recycling device of carbonization furnace | |
| CN2438928Y (en) | Device for cooling ash | |
| CN201674947U (en) | Superconductive hot air type tea carding machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |