CN113654368A - Waste heat recycling device for rotary kiln of vanadium plant and using method thereof - Google Patents

Abstract

The invention discloses a waste heat recycling device for a rotary kiln of a vanadium plant and a using method thereof, and the waste heat recycling device comprises a flue gas pipeline, wherein the top of the flue gas pipeline is fixedly connected with a transmission box, a filtering mechanism is arranged in the flue gas pipeline and below the transmission box, and one end of the bottom of the inner wall of the transmission box is rotatably connected with a first rotating rod. Meanwhile, the condition that the environment is polluted due to direct discharge of the slag is avoided, and the method is beneficial to practical application.

Description

Waste heat recycling device for rotary kiln of vanadium plant and using method thereof

Technical Field

The invention belongs to the technical field of waste heat recycling, and particularly relates to a waste heat recycling device for a rotary kiln of a vanadium plant and a using method thereof.

Background

In the existing life, vanadium is a metal element, the symbol of the element is V, silver gray metal belongs to VB group in the periodic table of the elements, the atomic number is 23, the atomic weight is 50.9414, body-centered cubic crystals are common, the valence is +5, +4, +3, +2, the melting point of vanadium is very high, the vanadium is refractory metal, the vanadium is ductile, hard and non-magnetic, has the hydrochloric acid and sulfuric acid resistance, and has better gas resistance, salt resistance and water corrosion resistance than most stainless steels, a vanadium plant usually needs to use a rotary kiln to operate when producing and preparing vanadium, and the production technology of the rotary kiln mainly adopts CaCO₂Is decomposed by heating to release CO₂Obtaining the final product, namely industrial active lime, wherein the chemical formula is as follows: ca0, production process consumes a large amount of heat energy, and the rotary kiln body is higher with the exhaust waste gas temperature in the rotary kiln production process, produces more waste heat, and the waste heat recovery comprehensive utilization develops nowadays, and the development circular economy accords with national industry policy, is favorable to promoting energy saving and emission reduction, improves enterprise economic benefits, improves the environment, therefore, the vanadium plant generally sets up waste heat recovery and utilization device on the rotary kiln flue gas emission pipeline when producing and preparing vanadium.

But the waste heat recovery who has now mostly just simply utilizes the flue gas waste heat to heat the water source to reach waste heat recovery's purpose, nevertheless contain a large amount of slag particles in the high temperature flue gas, if do not carry out preliminary treatment to it, will lead to the stove inner wall to take place phenomenons such as wearing and tearing and scale deposit, influence heat transfer efficiency, and the slag is inside to contain a large amount of heats, directly not only can cause environmental pollution with the slag discharge, but also can cause the energy waste, be unfavorable for practical application.

The invention content is as follows:

the invention aims to solve the problems in the prior art, and provides a waste heat recycling device for a rotary kiln of a vanadium plant and a using method thereof.

In order to solve the above problems, the present invention provides a technical solution:

a waste heat recycling device for a rotary kiln of a vanadium plant comprises a flue gas pipeline, wherein a transmission box is fixedly connected to the top of the flue gas pipeline, a filtering mechanism is arranged in the flue gas pipeline and below the transmission box, one end of the bottom of the inner wall of the transmission box is rotatably connected with a first rotating rod, a first transmission gear is fixedly connected to the top of the first rotating rod, the bottom of the first rotating rod extends into the flue gas pipeline and is fixedly connected with a first cam, a limiting groove is formed in the outer side of the first cam, a first servo motor is fixedly installed at the bottom of the inner wall of the transmission box and at one side of the first rotating rod, a driving gear is fixedly connected to an output shaft of the first servo motor, a second rotating rod is rotatably connected to the bottom of the inner wall of the transmission box and at one side of the first servo motor, and a first bevel gear is fixedly connected to the top of the second rotating rod, a second transmission gear is fixedly connected to the outer side of the second rotating rod and located on one side of the driving gear, a fixed plate is fixedly connected to the top of the inner wall of the transmission box and located on one side of the first bevel gear, a third rotating rod is rotatably connected between the fixed plate and the inner wall of the transmission box, one end, close to the first bevel gear, of the third rotating rod penetrates through the fixed plate and is fixedly connected with a second bevel gear, the second bevel gear is meshed with the first bevel gear, a second cam is fixedly connected to the outer side of the third rotating rod and located between the fixed plate and the inner wall of the transmission box, a through groove is formed in the top of the transmission box and located right above the second cam, the top of the second cam penetrates through the through groove and extends to the top of the transmission box, a sliding rod is slidably connected to the bottom of the inner wall of the transmission box and located right below the second cam, and a connecting plate is fixedly connected to the top of the sliding rod, the bottom of second cam contacts with the top of connecting plate, the cover has third return spring between the outside of slide bar and the bottom that is located the bottom of connecting plate and transmission box inner wall, the bottom of slide bar extends to the inside of flue gas pipeline and is provided with scarfing cinder mechanism, the bottom of flue gas pipeline just is located filter mechanism's fixedly connected with feed cylinder down under, the bottom of flue gas pipeline just is located the equal fixedly connected with dead lever in both sides of feed cylinder down, two fixedly connected with heat transfer case between the bottom of dead lever, the bottom of feed cylinder extends to the inside of heat transfer case down, the inside of heat transfer case is provided with rabbling mechanism, the inside of heat transfer case and the outside that is located rabbling mechanism are provided with heat transfer mechanism.

As preferred, filtering mechanism includes the filter, the inside of flue gas pipeline and the below sliding connection who is located the transmission box have the filter, the inside of filter is provided with the filter screen, the dashpot has all been seted up to the top and the bottom of flue gas pipeline inner wall and one side that is located the filter, the equal fixedly connected with stopper in top and the bottom of filter, the stopper all extend to the inside of the dashpot that corresponds and with dashpot sliding connection, the first return spring of equal fixedly connected with between the inner wall of dashpot and the stopper that corresponds, one side at filter top is rotated and is connected with spacing gyro wheel, the outside of spacing gyro wheel extends to the inside of spacing groove and with spacing groove rolling connection.

As preferred, the scarfing cinder mechanism includes fixed sleeve, the bottom of slide bar extends to flue gas duct's inside and fixedly connected with fixed sleeve, the one end fixedly connected with second return spring that fixed sleeve's inner wall is close to the slide bar, the one end fixedly connected with movable plate of slide bar is kept away from to second return spring, movable plate and fixed sleeve's inner wall sliding connection, one side fixedly connected with scraper blade of second return spring is kept away from to the movable plate, the one end that the movable plate was kept away from to the scraper blade extends to the fixed sleeve's the outside and contacts with the outside of filter screen.

Preferably, the stirring mechanism comprises a second servo motor, the second servo motor is fixedly mounted on one side of the heat exchange box, an output shaft of the second servo motor extends to the inside of the heat exchange box and is fixedly connected with a rotating shaft, and stirring blades are fixedly connected to the outer side of the rotating shaft at equal intervals.

Preferably, the heat exchange mechanism comprises a water inlet pipe, the water inlet pipe is fixedly connected with the outer side of the heat exchange box and positioned above the second servo motor, one end of the water inlet pipe extends into the heat exchange box, the bottom of the water inlet pipe is fixedly connected with first connecting pipes which are positioned in the heat exchange box at equal intervals, the bottoms of the first connecting pipes are fixedly connected with annular pipes, the bottoms of the annular pipes are fixedly connected with second connecting pipes, one side of the bottom of the heat exchange box, which is far away from the water inlet pipe, is fixedly connected with a water outlet pipe, one end of the water outlet pipe extends into the heat exchange box, the bottom of second connecting pipe all with the top fixed connection of drain pipe, the one end that the heat transfer case was kept away from to the drain pipe extends to flue gas pipeline's inside and fixedly connected with heat exchange tube, the one end that the drain pipe was kept away from to the heat exchange tube extends to flue gas pipeline's the outside.

Preferably, the diameters of the first transmission gear and the second transmission gear are the same, the ratio of the diameters of the first transmission gear to the diameters of the driving gear is one to three, teeth are arranged on one third of the outer side of the driving gear, and the teeth on the outer side of the driving gear are meshed with the first transmission gear or the second transmission gear.

Preferably, a control panel is fixedly mounted on the outer side of the transmission box, and the first servo motor and the second servo motor are electrically connected with the control panel.

Preferably, the bottoms of the heat exchange box and the lower charging barrel are both set to be conical structures, the bottom of the heat exchange box is fixedly connected with a discharge pipe, and a valve is fixedly mounted on the outer side of the discharge pipe.

A use method of a waste heat recycling device for a rotary kiln of a vanadium plant comprises the following steps:

s1, the equipment is installed at a designated position, then the equipment is powered on, high-temperature flue gas enters the flue gas pipeline, then is filtered by a filter screen inside a filter plate, slag contained in the flue gas is attached to the outer side of the filter screen, meanwhile, a first servo motor is controlled by a control panel to work, a driving gear is driven to rotate by the first servo motor, a second transmission gear and a second rotating rod are driven to rotate for a circle by teeth outside the driving gear, meanwhile, a third rotating rod is driven to rotate by the matching between a first bevel gear and a second bevel gear, so that a second cam is driven to rotate, a slide bar is pushed to move downwards by the rotation of the second cam, a third return spring is extruded, and the slide bar can reciprocate up and down under the elastic force action of the third return spring, so that a slag removing mechanism is driven to move up and down, meanwhile, the scraper is always contacted with the outer side of the filter screen under the action of the elastic force of the second return spring, so that the slag on the outer side of the filter screen is cleaned through the up-and-down movement of the scraper;

s2, after the scraper is cleaned, the driving gear drives the first transmission gear and the first rotating rod to rotate so as to drive the first cam to rotate, the filter plate is pushed to move through the matching between the limiting groove on the outer side of the first cam and the limiting roller, and the first return spring is matched to complete the shaking and blanking operation;

s3, the slag of whereabouts falls into the inside of heat transfer case through the feed cylinder, control second servo motor and carry out work, drive axis of rotation and stirring vane rotate, thereby stir the slag of heat transfer incasement portion, cold water passes through the inside that the inlet tube got into the heat transfer case simultaneously, and through first connecting pipe, the inside that ring pipe and second connecting pipe got into the drain pipe, cold water passes through the ring pipe and accomplishes the heat transfer operation in the inside of heat transfer case, and the inside that gets into the water entering heat exchange tube of drain pipe carries out secondary heat transfer operation with the flue gas after filtering, carry to the region that needs to use hot water at last.

The invention has the beneficial effects that: the high-temperature flue gas heat recovery device is compact in structure, simple and convenient to operate and high in practicability, slag in high-temperature flue gas is filtered by the aid of the filtering mechanism, and can be cleaned by the aid of the motor gear transmission and the slag cleaning mechanism in cooperation, and heat in the filtered flue gas and heat in the slag can be recycled by the aid of the stirring mechanism in cooperation with the heat exchange mechanism, so that waste heat recycling efficiency is further improved, environment pollution caused by direct discharge of the slag is avoided, and the high-temperature flue gas heat recovery device is beneficial to practical application.

Description of the drawings:

for ease of illustration, the invention is described in detail by the following detailed description and the accompanying drawings.

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the internal structure of the transmission case of the present invention;

FIG. 3 is an enlarged view taken at A in FIG. 1;

fig. 4 is a schematic view of the internal structure of the heat exchange box of the present invention.

In the figure: 1. a flue gas duct; 2. a transmission box; 3. a filtering mechanism; 31. a filter plate; 32. a filter screen; 33. a buffer tank; 34. a limiting block; 35. a first return spring; 36. limiting the idler wheel; 4. a first rotating lever; 5. a first drive gear; 6. a first cam; 7. a limiting groove; 8. a first servo motor; 9. a driving gear; 10. a second rotating lever; 11. a second transmission gear; 12. a first bevel gear; 13. a fixing plate; 14. a third rotating rod; 15. a second bevel gear; 16. a second cam; 17. a through groove; 18. a slide bar; 19. a slag removal mechanism; 191. fixing the sleeve; 192. a second return spring; 193. moving the plate; 194. a squeegee; 20. a third return spring; 21. fixing the rod; 22. a heat exchange box; 23. a stirring mechanism; 231. a second servo motor; 232. a rotating shaft; 233. a stirring blade; 24. a heat exchange mechanism; 241. a water inlet pipe; 242. a first connecting pipe; 243. an annular tube; 244. a drain pipe; 245. a second connecting pipe; 246. a heat exchange pipe; 25. a discharge pipe; 26. a valve; 27. a control panel; 28. a connecting plate; 29. and (5) discharging the charging barrel.

The specific implementation mode is as follows:

as shown in fig. 1 to 4, the following technical solutions are adopted in the present embodiment:

example (b):

a waste heat recycling device for a rotary kiln of a vanadium plant comprises a flue gas pipeline 1, wherein a transmission box 2 is fixedly connected to the top of the flue gas pipeline 1, a filtering mechanism 3 is arranged inside the flue gas pipeline 1 and below the transmission box 2, one end of the bottom of the inner wall of the transmission box 2 is rotatably connected with a first rotating rod 4, a first transmission gear 5 is fixedly connected to the top of the first rotating rod 4, the bottom of the first rotating rod 4 extends into the flue gas pipeline 1 and is fixedly connected with a first cam 6, a limiting groove 7 is formed in the outer side of the first cam 6, and the first rotating rod 4 can be conveniently and better driven to rotate through the rotation of the first transmission gear 5, so that the first cam 6 is driven to rotate; a first servo motor 8 is fixedly installed at the bottom of the inner wall of the transmission box 2 and positioned on one side of the first rotating rod 4, an output shaft of the first servo motor 8 is fixedly connected with a driving gear 9, and the driving gear 9 is conveniently and better driven to rotate through the first servo motor 8; a second rotating rod 10 is rotatably connected to the bottom of the inner wall of the transmission box 2 and located on one side of the first servo motor 8, a first bevel gear 12 is fixedly connected to the top of the second rotating rod 10, a second transmission gear 11 is fixedly connected to the outer side of the second rotating rod 10 and located on one side of the driving gear 9, and the second rotating rod 10 can be conveniently and better driven to rotate through the rotation of the second transmission gear 11, so that the first bevel gear 12 is driven to rotate; a fixed plate 13 is fixedly connected to the top of the inner wall of the transmission box 2 and located on one side of the first bevel gear 12, a third rotating rod 14 is rotatably connected between the fixed plate 13 and the inner wall of the transmission box 2, one end, close to the first bevel gear 12, of the third rotating rod 14 penetrates through the fixed plate 13 and is fixedly connected with a second bevel gear 15, the second bevel gear 15 is meshed with the first bevel gear 12, and the second bevel gear 15 and the third rotating rod 14 are conveniently driven to rotate better through the rotation of the first bevel gear 12; a second cam 16 is fixedly connected between the fixed plate 13 and the inner wall of the transmission box 2 and outside the third rotating rod 14, a through groove 17 is formed in the top of the transmission box 2 and right above the second cam 16, the top of the second cam 16 penetrates through the through groove 17 and extends to the top of the transmission box 2, and the second cam 16 is conveniently driven to rotate through the rotation of the third rotating rod 14; the bottom of the inner wall of the transmission box 2 is positioned under the second cam 16 and is connected with a sliding rod 18 in a sliding mode, the top of the sliding rod 18 is fixedly connected with a connecting plate 28, the bottom of the second cam 16 is in contact with the top of the connecting plate 28, a third return spring 20 is sleeved on the outer side of the sliding rod 18 and between the bottom of the connecting plate 28 and the bottom of the inner wall of the transmission box 2, the bottom of the sliding rod 18 extends into the flue gas pipeline 1 and is provided with a slag removing mechanism 19, the sliding rod 18 is pushed to move downwards and extrudes the third return spring 20 under the action of the connecting plate 28 better due to the rotation of the second cam 16, and the sliding rod 18 can reciprocate up and down under the action of the elastic force of the third return spring 20, so that the slag removing mechanism 19 is driven to move up and down; the bottom of the flue gas pipeline 1 is fixedly connected with a lower charging barrel 29 just below the filtering mechanism 3, the bottom of the flue gas pipeline 1 is fixedly connected with fixing rods 21 on two sides of the lower charging barrel 29, a heat exchange box 22 is fixedly connected between the bottoms of the two fixing rods 21, the bottom of the lower charging barrel 29 extends to the inside of the heat exchange box 22, and slag can be conveniently introduced into the inside of the heat exchange box 22 for storage through the lower charging barrel 29; a stirring mechanism 23 is arranged inside the heat exchange box 22, and a heat exchange mechanism 24 is arranged inside the heat exchange box 22 and outside the stirring mechanism 23.

Wherein, the filtering mechanism 3 comprises a filtering plate 31, the inside of the flue gas pipeline 1 and the lower part of the transmission box 2 are connected with the filtering plate 31 in a sliding way, the inside of the filtering plate 31 is provided with a filtering net 32, the top and the bottom of the inner wall of the flue gas pipeline 1 and one side of the filtering plate 31 are both provided with a buffering groove 33, the top and the bottom of the filtering plate 31 are both fixedly connected with limiting blocks 34, the limiting blocks 34 are both extended to the inside of the corresponding buffering groove 33 and are connected with the buffering groove 33 in a sliding way, a first return spring 35 is fixedly connected between the inner wall of the buffering groove 33 and the corresponding limiting block 34, one side of the top of the filtering plate 31 is rotatably connected with a limiting roller 36, the outer side of the limiting roller 36 is extended to the inside of the limiting groove 7 and is connected with the limiting groove 7 in a rolling way, and by arranging the filtering mechanism 3, slag in the high-temperature flue gas can be better filtered, thereby avoiding the environmental pollution caused by the slag discharged into the air along with the flue gas.

Wherein, slag removal mechanism 19 includes fixed sleeve 191, the bottom of slide bar 18 extends to inside and the fixedly connected with fixed sleeve 191 of flue gas pipeline 1, the one end fixedly connected with second return spring 192 that the inner wall of fixed sleeve 191 is close to slide bar 18, the one end fixedly connected with movable plate 193 of slide bar 18 is kept away from to second return spring 192, movable plate 193 and fixed sleeve 191's inner wall sliding connection, one side fixedly connected with scraper blade 194 of second return spring 192 is kept away from to movable plate 193, the one end that scraper blade 194 kept away from movable plate 193 extends to the outside of fixed sleeve 191 and contacts with the outside of filter screen 32, through setting up slag removal mechanism 19, is convenient for better to the adnexed slag in the filter screen 32 outside clear up.

Wherein, rabbling mechanism 23 includes second servo motor 231, one side fixed mounting of heat transfer case 22 has second servo motor 231, second servo motor 231's output shaft extends to heat transfer case 22 inside and fixedly connected with axis of rotation 232, the outside equidistance fixedly connected with stirring vane 233 of axis of rotation 232 is through setting up rabbling mechanism 23, is convenient for better stirs the inside slag of heat transfer case 22 to increase heat transfer effect.

Wherein, heat exchange mechanism 24 includes inlet tube 241, the outside of heat exchange case 22 and the top fixedly connected with inlet tube 241 that is located second servo motor 231, the one end of inlet tube 241 extends to the inside of heat exchange case 22, the bottom of inlet tube 241 and the inside equidistance fixedly connected with first connecting tube 242 that is located heat exchange case 22, the equal fixedly connected with ring pipe 243 in bottom of first connecting tube 242, the equal fixedly connected with second connecting tube 245 in bottom of ring pipe 243, one side fixedly connected with drain pipe 244 that inlet tube 241 is kept away from to the bottom of heat exchange case 22, the one end of drain pipe 244 extends to the inside of heat exchange case 22, the bottom of second connecting tube 245 all with the top fixed connection of drain pipe 244, the one end that heat exchange case 22 was kept away from to drain pipe 244 extends to the inside of flue gas pipeline 1 and fixedly connected with heat exchange tube 246, the one end that drain pipe 244 was kept away from to heat exchange tube 246 extends to the outside of flue gas pipeline 1, through setting up heat transfer mechanism 24, be convenient for carry out make full use of to the inside heat of slag and the inside heat of flue gas after filtering better.

Wherein, first drive gear 5 is the same with second drive gear 11's diameter, first drive gear 5 is one to three with the diameter of driving gear 9 than, the third position in the driving gear 9 outside is provided with the tooth, just the tooth position in the driving gear 9 outside is connected with first drive gear 5 or the 11 meshing of second drive gear, through the cooperation between driving gear 9, first drive gear 5 and the second drive gear 11, is convenient for better drive third dwang 14 rotates a week, drives first dwang 4 again and rotates a week to accomplish this reciprocal continuous operation of scarfing cinder-shake unloading-scarfing cinder-shake unloading.

Wherein, the outside fixed mounting of transmission box 2 has control panel 27, first servo motor 8, second servo motor 231 all with control panel 27 electric connection, be convenient for better controlling first servo motor 8 and second servo motor 231 through control panel 27.

The bottoms of the heat exchange box 22 and the blanking cylinder 29 are both provided with conical structures, so that better blanking operation is facilitated; and the bottom of the heat exchange box 22 is fixedly connected with a discharge pipe 25, a valve 26 is fixedly arranged on the outer side of the discharge pipe 25, slag discharge is facilitated through the discharge pipe 25, and on-off of the discharge pipe 25 is facilitated through the valve 26.

A use method of a waste heat recycling device for a rotary kiln of a vanadium plant comprises the following steps:

s1, installing the device at a specified position, powering on the device, allowing high-temperature flue gas to enter the flue gas pipeline 1, filtering the flue gas by the filter screen 32 inside the filter plate 31, allowing slag contained in the flue gas to adhere to the outer side of the filter screen 32, controlling the first servo motor 8 to work by the control panel 27, driving the driving gear 9 to rotate by the first servo motor 8, driving the second transmission gear 11 and the second rotating rod 10 to rotate for a circle by the teeth outside the driving gear 9, driving the third rotating rod 14 to rotate by the cooperation between the first bevel gear 12 and the second bevel gear 15, thereby driving the second cam 16 to rotate, pushing the slide bar 18 to move downwards by the rotation of the second cam 16, and extruding the third return spring 20, so that the slide bar 18 can move up and down under the elastic force of the third return spring 20, thereby driving the slag removing mechanism 19 to move up and down, and simultaneously the scraper 194 is always contacted with the outer side of the filter screen 32 under the elastic force of the second return spring 192, thereby cleaning the slag on the outer side of the filter screen 32 through the up and down movement of the scraper 194;

s2, after the scraper 194 is cleaned, the driving gear 9 drives the first transmission gear 5 and the first rotating rod 4 to rotate, so as to drive the first cam 6 to rotate, the filter plate 31 is pushed to move through the matching between the limiting groove 7 on the outer side of the first cam 6 and the limiting roller 36, and the first return spring 35 is matched to complete the shaking and blanking operation;

s3, the falling slag falls into the heat exchange box 22 through the lower charging barrel 29, the second servo motor 231 is controlled to work, the rotating shaft 232 and the stirring blade 233 are driven to rotate, thereby stirring the slag in the heat exchange box 22, meanwhile, cold water enters the heat exchange box 22 through the water inlet pipe 241, and enters the inside of the water outlet pipe 244 through the first connecting pipe 242, the annular pipe 243 and the second connecting pipe 245, the cold water completes the heat exchange operation in the heat exchange box 22 through the annular pipe 243, and the water entering the inside of the water outlet pipe 244 enters the inside of the heat exchange pipe 246 and the filtered smoke to perform the secondary heat exchange operation, and finally, the water is conveyed to the area needing hot water.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

Furthermore, the terms "first", "second", "third", "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby the features defined as "first", "second", "third", "fourth" may explicitly or implicitly include at least one such feature.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "disposed," "connected," "secured," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (9)

1. The waste heat recycling device for the rotary kiln of the vanadium plant comprises a flue gas pipeline (1) and is characterized in that a transmission box (2) is fixedly connected to the top of the flue gas pipeline (1), a filtering mechanism (3) is arranged inside the flue gas pipeline (1) and below the transmission box (2), a first rotating rod (4) is rotatably connected to one end of the bottom of the inner wall of the transmission box (2), a first transmission gear (5) is fixedly connected to the top of the first rotating rod (4), the bottom of the first rotating rod (4) extends to the inside of the flue gas pipeline (1) and is fixedly connected with a first cam (6), a limiting groove (7) is formed in the outer side of the first cam (6), a first servo motor (8) is fixedly mounted at one side of the bottom of the inner wall of the transmission box (2) and located on the first rotating rod (4), and a driving gear (9) is fixedly connected to an output shaft of the first servo motor (8), the bottom of transmission box (2) inner wall just is located one side rotation of first servo motor (8) and is connected with second dwang (10), the first bevel gear (12) of top fixedly connected with of second dwang (10), the outside of second dwang (10) just is located one side fixedly connected with second drive gear (11) of driving gear (9), the top of transmission box (2) inner wall just is located one side fixedly connected with fixed plate (13) of first bevel gear (12), it is connected with third dwang (14) to rotate between the inner wall of fixed plate (13) and transmission box (2), the one end that third dwang (14) is close to first bevel gear (12) runs through fixed plate (13) and fixedly connected with second bevel gear (15), second bevel gear (15) are connected with first bevel gear (12) meshing, the outside of third dwang (14) just is located between the inner wall of fixed plate (13) and transmission box (2) fixed connection second bevel gear (15) A second cam (16) is connected, a through groove (17) is formed in the top of the transmission box (2) and is located right above the second cam (16), the top of the second cam (16) penetrates through the through groove (17) and extends to the top of the transmission box (2), a sliding rod (18) is connected to the bottom of the inner wall of the transmission box (2) and is located right below the second cam (16) in a sliding mode, a connecting plate (28) is fixedly connected to the top of the sliding rod (18), the bottom of the second cam (16) is in contact with the top of the connecting plate (28), a third return spring (20) is sleeved on the outer side of the sliding rod (18) and is located between the bottom of the connecting plate (28) and the bottom of the inner wall of the transmission box (2), the bottom of the sliding rod (18) extends to the inside of the flue gas pipeline (1) and is provided with a slag cleaning mechanism (19), a lower charging barrel (29) is fixedly connected to the bottom of the flue gas pipeline (1) and is located right below the filtering mechanism (3), the equal fixedly connected with dead lever (21) in both sides of feed cylinder (29) down is just located in the bottom of flue gas pipeline (1), two fixedly connected with heat transfer case (22) between the bottom of dead lever (21), the bottom of feed cylinder (29) extends to the inside of heat transfer case (22) down, the inside of heat transfer case (22) is provided with rabbling mechanism (23), the inside of heat transfer case (22) and the outside that is located rabbling mechanism (23) are provided with heat transfer mechanism (24).

2. The waste heat recycling device for the rotary kiln of the vanadium plant according to claim 1, wherein the filtering mechanism (3) comprises a filtering plate (31), the filtering plate (31) is slidably connected inside the flue gas pipeline (1) and below the transmission box (2), the filtering plate (31) is internally provided with a filtering net (32), the top and the bottom of the inner wall of the flue gas pipeline (1) and one side of the filtering plate (31) are both provided with a buffering groove (33), the top and the bottom of the filtering plate (31) are both fixedly connected with a limiting block (34), the limiting block (34) is both extended to the inside of the corresponding buffering groove (33) and is slidably connected with the buffering groove (33), a first return spring (35) is fixedly connected between the inner wall of the buffering groove (33) and the corresponding limiting block (34), one side of the top of the filtering plate (31) is rotatably connected with a limiting roller (36), the outer side of the limiting roller (36) extends to the inner part of the limiting groove (7) and is in rolling connection with the limiting groove (7).

3. The waste heat recycling device for the rotary kiln of the vanadium plant as claimed in claim 2, which is characterized in that, the slag removing mechanism (19) comprises a fixed sleeve (191), the bottom of the sliding rod (18) extends into the flue gas pipeline (1) and is fixedly connected with the fixed sleeve (191), one end of the inner wall of the fixed sleeve (191) close to the sliding rod (18) is fixedly connected with a second return spring (192), one end of the second return spring (192) far away from the sliding rod (18) is fixedly connected with a moving plate (193), the movable plate (193) is connected with the inner wall of the fixed sleeve (191) in a sliding way, one side of the movable plate (193) far away from the second return spring (192) is fixedly connected with a scraper (194), one end of the scraper (194) far away from the moving plate (193) extends to the outer side of the fixed sleeve (191) and is in contact with the outer side of the filter screen (32).

4. The waste heat recycling device for the rotary kiln of the vanadium plant as claimed in claim 3, wherein the stirring mechanism (23) comprises a second servo motor (231), the second servo motor (231) is fixedly installed on one side of the heat exchange box (22), an output shaft of the second servo motor (231) extends to the inside of the heat exchange box (22) and is fixedly connected with a rotating shaft (232), and stirring blades (233) are fixedly connected to the outer side of the rotating shaft (232) at equal intervals.

5. The waste heat recycling device for the rotary kiln of the vanadium plant as claimed in claim 4, wherein the heat exchange mechanism (24) comprises a water inlet pipe (241), the outer side of the heat exchange box (22) is fixedly connected with the water inlet pipe (241) above the second servo motor (231), one end of the water inlet pipe (241) extends to the inside of the heat exchange box (22), the bottom of the water inlet pipe (241) is fixedly connected with first connecting pipes (242) at equal intervals inside the heat exchange box (22), the bottom of the first connecting pipes (242) is fixedly connected with a ring pipe (243), the bottom of the ring pipe (243) is fixedly connected with a second connecting pipe (245), one side of the bottom of the heat exchange box (22) far away from the water inlet pipe (241) is fixedly connected with a drain pipe (244), one end of the drain pipe (244) extends to the inside of the heat exchange box (22), the bottom of second connecting pipe (245) all with the top fixed connection of drain pipe (244), the one end that heat transfer case (22) were kept away from in drain pipe (244) extends to the inside of flue gas pipeline (1) and fixedly connected with heat exchange tube (246), the one end that drain pipe (244) were kept away from in heat exchange tube (246) extends to the outside of flue gas pipeline (1).

6. The waste heat recycling device for the rotary kiln of the vanadium plant as claimed in claim 1, wherein the first transmission gear (5) and the second transmission gear (11) have the same diameter, the diameter ratio of the first transmission gear (5) to the driving gear (9) is one to three, teeth are arranged on one third of the outer side of the driving gear (9), and the teeth on the outer side of the driving gear (9) are meshed with the first transmission gear (5) or the second transmission gear (11).

7. The waste heat recycling device for the rotary kiln of the vanadium plant as claimed in claim 4, wherein a control panel (27) is fixedly mounted on the outer side of the transmission box (2), and the first servo motor (8) and the second servo motor (231) are electrically connected with the control panel (27).

8. The waste heat recycling device for the rotary kiln of the vanadium plant as claimed in claim 1, wherein the bottoms of the heat exchange box (22) and the blanking barrel (29) are both set to be conical structures, the bottom of the heat exchange box (22) is fixedly connected with a discharge pipe (25), and the outer side of the discharge pipe (25) is fixedly provided with a valve (26).

9. The use method of the waste heat recycling device for the rotary kiln of the vanadium plant according to any one of claims 1 to 8, characterized by comprising the following steps:

s1, the equipment is installed at a designated position, then the equipment is powered on, high-temperature flue gas enters the interior of a flue gas pipeline (1), then the flue gas is filtered by a filter screen (32) inside a filter plate (31), slag contained in the flue gas is attached to the outer side of the filter screen (32), meanwhile, a first servo motor (8) is controlled by a control panel (27) to work, a driving gear (9) is driven by the first servo motor (8) to rotate, a second transmission gear (11) and a second rotating rod (10) are driven to rotate for a circle by teeth on the outer side of the driving gear (9), meanwhile, a third rotating rod (14) is driven to rotate by the matching between a first bevel gear (12) and a second bevel gear (15), so that a second cam (16) is driven to rotate, and a sliding rod (18) is pushed to move downwards by the rotation of the second cam (16), the third return spring (20) is extruded, the sliding rod (18) can move up and down in a reciprocating mode under the action of the elastic force of the third return spring (20), so that the slag removing mechanism (19) is driven to move up and down, meanwhile, the scraper (194) is always in contact with the outer side of the filter screen (32) under the action of the elastic force of the second return spring (192), and therefore slag on the outer side of the filter screen (32) is removed through the up and down movement of the scraper (194);

s2, after the scraper (194) is cleaned, the driving gear (9) drives the first transmission gear (5) and the first rotating rod (4) to rotate, so that the first cam (6) is driven to rotate, the filter plate (31) is pushed to move through the matching between the limiting groove (7) on the outer side of the first cam (6) and the limiting roller (36), and the first return spring (35) is matched to complete the shaking and blanking operation;

s3, the falling slag falls into the heat exchange box (22) through the lower charging barrel (29), a second servo motor (231) is controlled to work, the rotating shaft (232) and the stirring blades (233) are driven to rotate, the slag in the heat exchange box (22) is stirred, meanwhile, cold water enters the heat exchange box (22) through the water inlet pipe (241), enters the water discharge pipe (244) through the first connecting pipe (242), the annular pipe (243) and the second connecting pipe (245), the cold water completes heat exchange operation in the heat exchange box (22) through the annular pipe (243), the water entering the water discharge pipe (244) enters the heat exchange pipe (246) and carries out secondary heat exchange operation with filtered smoke, and finally the cold water is conveyed to an area needing hot water.

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