CN113654369A

CN113654369A - Waste heat utilization device for rotary kiln and use method thereof

Info

Publication number: CN113654369A
Application number: CN202111094355.8A
Authority: CN
Inventors: 陈源; 向明勇; 杨雪峰; 曾江; 霍振军; 汤波; 吴恒宇
Original assignee: Sichuan Xingxin Vanadium Technology Co ltd
Current assignee: Sichuan Xingxin Vanadium Technology Co ltd
Priority date: 2021-09-17
Filing date: 2021-09-17
Publication date: 2021-11-16

Abstract

The invention discloses a waste heat utilization device for a rotary kiln and a use method thereof, and the waste heat utilization device comprises a box body and a cleaning mechanism, wherein a transverse plate is fixedly connected inside the box body, filter plates are symmetrically and fixedly connected to the bottom of the transverse plate, the bottom of the transverse plate is symmetrically provided with the cleaning mechanism for cleaning the filter plates, a heat exchange tube is arranged inside the box body, the top of the box body is fixedly connected with a motor, the output end of the motor is fixedly connected with a transmission shaft, and the outer side of the transmission shaft is fixedly connected with a second brush.

Description

Waste heat utilization device for rotary kiln and use method thereof

Technical Field

The invention relates to the technical field of waste heat utilization of rotary kilns, in particular to a waste heat utilization device for a rotary kiln and a using method thereof.

Background

The rotary kiln is a rotary calcining kiln, belongs to building material equipment, and is mainly used for carrying out magnetization roasting on lean iron ore and carrying out silicothermic magnesium smelting in steel plants in the metallurgical industry; chromium, the oxidation roasting of nickel iron ore, the refractory material factory is used for roasting the steel plant, active lime and calcination dolomite that the ferroalloy factory used, the rotary kiln can produce a large amount of high temperature flue gases at the operation in-process, generally all can carry out heat recovery to the high temperature flue gas and utilize, current waste heat utilization equipment does not have filter mechanism, can not filter the impurity in the flue gas, the back has been grown in the live time, a large amount of impurity are attached to the heat exchange tube surface easily, cause the influence to the efficiency and the effect of heat transfer easily.

Disclosure of Invention

The invention aims to provide a waste heat utilization device for a rotary kiln and a using method thereof, so as to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a waste heat utilization equipment for rotary kiln, includes box and clean mechanism, the inside fixedly connected with diaphragm of box, the bottom symmetry fixedly connected with filter of diaphragm, the bottom of diaphragm sets up the symmetry and is provided with the clean mechanism that is used for cleaning the filter, the internally mounted of box has the heat exchange tube, the top fixedly connected with motor of box, the output fixedly connected with transmission shaft of motor, the outside fixedly connected with brush No. two of transmission shaft.

As a preferable scheme of the invention, the cleaning mechanism comprises a reciprocating screw rod, the bottom of the transverse plate is rotatably connected with the reciprocating screw rod, the outer side of the reciprocating screw rod is in threaded connection with a sliding block, one side of the sliding block is fixedly connected with a first brush, the bottom of the transverse plate is fixedly connected with a vertical rod, the sliding block is in sliding connection with the vertical rod, and the top of the reciprocating screw rod is fixedly connected with a worm wheel.

According to a preferable scheme of the invention, a worm matched with a worm wheel is rotatably connected inside the transverse plate, a second bevel gear is fixedly connected outside the worm, a first bevel gear matched with the second bevel gear is fixedly connected to the bottom of the transmission shaft, a heat insulation layer is arranged on the inner wall of the box body, and a through hole is formed inside the transverse plate.

As a preferable scheme of the present invention, one end of the worm and the outer side of the box body are fixedly connected with a driving pulley, the interior of the box body is rotatably connected with a rotating rod, one end of the rotating rod is fixedly connected with a fan blade, one end of the rotating rod and the outer side of the box body are fixedly connected with a driven pulley, and the driven pulley is in transmission connection with the driving pulley through a belt.

According to a preferable scheme of the invention, the bottom of the box body and the position below the filter plate are provided with the collecting box, the inside of the collecting box is fixedly connected with the stop block, the bottom of the collecting box is fixedly connected with the fixed box, the inside of the fixed box is fixedly connected with the cross rod, the outer side of the cross rod is symmetrically and slidably connected with the moving blocks, the tops of the two moving blocks are fixedly connected with the L-shaped fixed rod, one side of the L-shaped fixed rod is fixedly connected with the clamping block, and the inside of the heat-insulating layer is provided with the clamping groove matched with the clamping block.

As a preferred scheme of the invention, the spring is sleeved outside the cross rod, the bottoms of the two moving blocks are rotatably connected with connecting rods, the inside of the fixed box is provided with an unlocking block, one ends of the two connecting rods are rotatably connected with the unlocking block, and the inside of the fixed box is provided with an avoiding groove.

As a preferred scheme of the present invention, a baffle is fixedly connected inside the box body, an air inlet pipe is arranged at one side of the box body, an air outlet pipe is arranged at the top of the box body, a transparent window is arranged on the inner wall of the box body, a control panel is arranged at one side of the box body, and the motor is electrically connected with the control panel.

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

s1, when the smoke purifier is used, smoke enters the box body from the air inlet pipe, the filter plate filters large impurities in the smoke, the smoke is contacted with the heat exchange pipe through the through hole, the heat exchange pipe absorbs and utilizes heat in the smoke, and then the smoke is discharged from the air outlet pipe;

s2, after long-time use, when the filter plate and the heat exchange tube need to be cleaned, the motor is started through the control panel, the motor enables the transmission shaft to rotate, the transmission shaft enables the second brush to rotate, the second brush cleans the heat exchange tube, meanwhile, the transmission shaft enables the first bevel gear to rotate, the first bevel gear enables the worm to rotate through the second bevel gear, the worm enables the worm wheel to rotate, the worm wheel enables the reciprocating screw rod to rotate, the reciprocating screw rod enables the sliding block to reciprocate, and the sliding block enables the first brush to reciprocate to clean the filter plate;

s3, the worm makes the drive pulley rotate, the drive pulley makes the driven pulley rotate through the belt, the driven pulley makes the bull stick rotate, the bull stick makes the flabellum rotate, the flabellum blows the filter, make the impurity on the filter drop, the cleaning effect has been increased, after the collecting box is collected to be full, down pulling unblock piece, unblock piece makes the movable block motion through the connecting rod, the movable block makes the fixture block shift out the draw-in groove through L type dead lever, just then the detachable collecting box, during the installation collecting box, aim at the box with the collecting box and insert, the fixture block is by box extrusion motion, thereby make the spring compression, when the fixture block aligns with the draw-in groove, the spring resets, make the fixture block card go into in the draw-in groove, can accomplish the installation.

Compared with the prior art, the invention has the beneficial effects that: the invention can filter impurities in smoke through the arranged cleaning mechanism, the second hair brush, the filter plate, the transmission shaft and other structures, and can clean the surface of the heat exchange pipe, so that the impurities in the smoke are prevented from attaching to the surface of the heat exchange pipe, and the heat exchange efficiency of the heat exchange pipe is influenced.

Drawings

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

FIG. 2 is an enlarged view taken at A of FIG. 1 in accordance with the present invention;

FIG. 3 is an enlarged view taken at B of FIG. 1 in accordance with the present invention;

FIG. 4 is an enlarged view of the invention at C of FIG. 1;

FIG. 5 is an enlarged view of the invention at D in FIG. 1;

FIG. 6 is a top view of the second brush of the present invention;

FIG. 7 is a schematic perspective view of a heat exchange tube of the present invention;

FIG. 8 is a top view of a via of the present invention;

fig. 9 is a schematic perspective view of the present invention.

In the figure: 1. a box body; 2. a heat-insulating layer; 3. a baffle plate; 4. a heat exchange pipe; 5. a transverse plate; 6. a collection box; 7. a filter plate; 8. a stopper; 9. a cleaning mechanism; 91. a first brush; 92. a reciprocating screw rod; 93. a slider; 94. a vertical rod; 95. a worm gear; 10. an air inlet pipe; 11. a drive shaft; 12. a motor; 13. an air outlet pipe; 14. a second brush; 15. a through hole; 16. a fan blade; 17. a first bevel gear; 18. a second bevel gear; 19. a worm; 20. a drive pulley; 21. a driven pulley; 22. a rotating rod; 23. an L-shaped fixing rod; 24. a moving block; 25. a fixed box; 26. a connecting rod; 27. unlocking the block; 28. a spring; 29. an avoidance groove; 30. a card slot; 31. a control panel; 32. a transparent window; 33. a cross bar; 34. and (7) clamping blocks.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-9, the present invention provides a technical solution: a waste heat utilization device for a rotary kiln comprises a box body 1 and a cleaning mechanism 9, wherein a transverse plate 5 is fixedly connected inside the box body 1, filter plates 7 are symmetrically and fixedly connected at the bottoms of the transverse plate 5, the filter plates 7 can filter larger impurities in flue gas to prevent a large amount of impurities from attaching to the surface of a heat exchange tube 4, cause the influence to heat exchange, the bottom of diaphragm 5 sets up the symmetry and is provided with the clean mechanism 9 that is used for cleaning filter 7, the internally mounted of box 1 has heat exchange tube 4, heat exchange tube 4 can absorb the utilization to the heat in the flue gas, the top fixedly connected with motor 12 of box 1, motor 12's output fixedly connected with transmission shaft 11, No. two brushes 14 of outside fixedly connected with of transmission shaft 11, No. two brushes 14 can clean heat exchange tube 4 surfaces, avoid the impurity in the flue gas to adhere to on heat exchange tube 4 surfaces, the heat exchange efficiency is improved.

Cleaning mechanism 9 is including reciprocal lead screw 92, the bottom of diaphragm 5 is rotated and is connected with reciprocal lead screw 92, reciprocal lead screw 92 can make a brush 91 carry out reciprocating motion, make a brush 91 clean the effect better, the outside threaded connection of reciprocal lead screw 92 has slider 93, brush 91 of one side fixedly connected with of slider 93, a brush 91 can clean filter 7, avoid filter 7 to be blockked up, the bottom fixedly connected with montant 94 of diaphragm 5, slider 93 and montant 94 sliding connection, the top fixedly connected with worm wheel 95 of reciprocal lead screw 92.

The inside of diaphragm 5 rotates and is connected with worm 19 with worm wheel 95 complex, the outside fixedly connected with second bevel gear 18 of worm 19, the bottom fixedly connected with of transmission shaft 11 and second bevel gear 18 complex bevel gear 17, bevel gear 17 and second bevel gear 18 cooperation can make worm 19 and transmission shaft 11 rotate simultaneously, and only need a power to drive, use cost is reduced, the inner wall of box 1 is provided with heat preservation 2, heat preservation 2 can improve the heat preservation effect of box 1, the inside of diaphragm 5 is provided with through-hole 15.

One end of the worm 19 is connected with the driving pulley 20 which is fixedly connected with the outer side of the box body 1, the rotating rod 22 is connected with the inner part of the box body 1 in a rotating mode, one end of the rotating rod 22 is fixedly connected with the fan blades 16, the fan blades 16 can blow the filter plate 7, impurities can fall off from the filter plate 7 easily, one end of the rotating rod 22 is connected with the driven pulley 21 which is fixedly connected with the outer side of the box body 1 in a rotating mode, and the driven pulley 21 is in transmission connection with the driving pulley 20 through a belt.

The bottom of box 1 and the below that is located filter 7 are provided with collecting box 6, collecting box 6 can be collected the impurity that a brush 91 cleaned from filter 7, the inside fixedly connected with dog 8 of collecting box 6, dog 8 can block the flue gas, avoid the flue gas to directly pass from collecting box 6, only once filter, it is not good to lead to the filter effect, the bottom fixedly connected with stationary box 25 of collecting box 6, the inside fixedly connected with horizontal pole 33 of stationary box 25, the outside symmetrical sliding connection of horizontal pole 33 has movable block 24, the equal fixedly connected with L type dead lever 23 in top of two movable blocks 24, one side fixedly connected with fixture block 34 of L type dead lever 23, the inside of heat preservation 2 is provided with fixture block 34 complex draw-in groove 30.

The outside cover of horizontal pole 33 has spring 28, and spring 28 can be used for promoting movable block 24, makes fixture block 34 can block into draw-in groove 30 automatically, and the bottom of two movable blocks 24 all rotates and is connected with connecting rod 26, and the inside of fixed box 25 is provided with unblock piece 27, and the one end of two connecting rods 26 all rotates with unblock piece 27 to be connected, and the inside of fixed box 25 is provided with dodges groove 29, dodges groove 29 and can avoid fixed box 25 to block connecting rod 26.

The inside fixedly connected with baffle 3 of box 1, baffle 3 can prolong the motion route of flue gas in box 1, thereby increase the dwell time of flue gas in box 1, make heat exchange tube 4's heat exchange efficiency higher, one side of box 1 is provided with intake pipe 10, the top of box 1 is provided with outlet duct 13, the inner wall of box 1 is provided with transparent window 32, transparent window 32 can make things convenient for people to observe the inside condition of collecting box 6, one side of box 1 is provided with control panel 31, control panel 31 can be used for controlling motor 12, make things convenient for people to control, motor 12 and control panel 31 electric connection.

s1, when the box is used, flue gas enters the box body 1 from the gas inlet pipe 10, the filter plate 7 filters large impurities in the flue gas, the flue gas contacts the heat exchange pipe 4 through the through hole 15, the heat exchange pipe 4 absorbs and utilizes heat in the flue gas, and then the flue gas is discharged from the gas outlet pipe 13;

s2, after long-time use, when the filter plate 7 and the heat exchange tube 4 need to be cleaned, the motor 12 is started through the control panel 31, the motor 12 enables the transmission shaft 11 to rotate, the transmission shaft 11 enables the second hair brush 14 to rotate, the second hair brush 14 cleans the heat exchange tube 4, meanwhile, the transmission shaft 11 enables the first bevel gear 17 to rotate, the first bevel gear 17 enables the worm 19 to rotate through the second bevel gear 18, the worm 19 enables the worm wheel 95 to rotate, the worm wheel 95 enables the reciprocating screw rod 92 to rotate, the reciprocating screw rod 92 enables the sliding block 93 to reciprocate, and the sliding block 93 enables the first hair brush 91 to reciprocate to clean the filter plate 7;

s3, the worm 19 enables the driving belt pulley 20 to rotate, the driving belt pulley 20 enables the driven belt pulley 21 to rotate through a belt, the driven belt pulley 21 enables the rotating rod 22 to rotate, the rotating rod 22 enables the fan blades 16 to rotate, the fan blades 16 blow the filter plate 7, impurities on the filter plate 7 fall off, the cleaning effect is improved, after the collecting box 6 is fully collected, the unlocking block 27 is pulled downwards, the unlocking block 27 enables the moving block 24 to move through the connecting rod 26, the moving block 24 enables the clamping block 34 to move out of the clamping groove 30 through the L-shaped fixing rod 23, then the collecting box 6 can be removed, when the collecting box 6 is installed, the collecting box 6 is aligned with the box body 1 to be inserted, the clamping block 34 is extruded by the box body 1 to move, the spring 28 is compressed, when the clamping block 34 is aligned with the clamping groove 30, the spring 28 resets, the clamping block 34 is clamped into the clamping groove 30, and installation can be completed.

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

1. The utility model provides a waste heat utilization equipment for rotary kiln, includes box (1) and clean mechanism (9), its characterized in that: the inside fixedly connected with diaphragm (5) of box (1), the bottom symmetry fixedly connected with filter (7) of diaphragm (5), the bottom of diaphragm (5) sets up the symmetry and is provided with clean mechanism (9) that are used for cleaning filter (7), the internally mounted of box (1) has heat exchange tube (4), the top fixedly connected with motor (12) of box (1), the output fixedly connected with transmission shaft (11) of motor (12), No. two brushes (14) of outside fixedly connected with of transmission shaft (11).

2. The waste heat utilization device for the rotary kiln as claimed in claim 1, wherein: clean mechanism (9) are including reciprocal lead screw (92), the bottom of diaphragm (5) is rotated and is connected with reciprocal lead screw (92), the outside threaded connection of reciprocal lead screw (92) has slider (93), brush (91) of one side fixedly connected with of slider (93), the bottom fixedly connected with montant (94) of diaphragm (5), slider (93) and montant (94) sliding connection, the top fixedly connected with worm wheel (95) of reciprocal lead screw (92).

3. The waste heat utilization device for the rotary kiln as claimed in claim 2, wherein: the internal rotation of diaphragm (5) is connected with worm (19) with worm wheel (95) complex, the outside fixedly connected with second bevel gear (18) of worm (19), the bottom fixedly connected with of transmission shaft (11) and second bevel gear (18) complex bevel gear (17), the inner wall of box (1) is provided with heat preservation (2), the inside of diaphragm (5) is provided with through-hole (15).

4. The waste heat utilization device for the rotary kiln as claimed in claim 3, wherein: the one end of worm (19) and extend to outside fixedly connected with drive pulley (20) of box (1), the inside rotation of box (1) is connected with bull stick (22), the one end fixedly connected with flabellum (16) of bull stick (22), the one end of bull stick (22) and extend to outside fixedly connected with driven pulley (21) of box (1), driven pulley (21) are connected with drive pulley (20) transmission through the belt.

5. The waste heat utilization device for the rotary kiln as claimed in claim 4, wherein: the bottom of box (1) just is located the below of filter (7) and is provided with collecting box (6), the inside fixedly connected with dog (8) of collecting box (6), the fixed case (25) of bottom fixedly connected with of collecting box (6), the inside fixedly connected with horizontal pole (33) of fixed case (25), the outside symmetry sliding connection of horizontal pole (33) has movable block (24), two the equal fixedly connected with L type dead lever (23) in top of movable block (24), one side fixedly connected with fixture block (34) of L type dead lever (23), the inside of heat preservation (2) is provided with draw-in groove (30) with fixture block (34) complex.

6. The waste heat utilization device for the rotary kiln as claimed in claim 5, wherein: the outside cover of horizontal pole (33) has spring (28), two the bottom of movable block (24) all rotates and is connected with connecting rod (26), the inside of fixed case (25) is provided with unblock piece (27), two the one end of connecting rod (26) all rotates with unblock piece (27) to be connected, the inside of fixed case (25) is provided with dodges groove (29).

7. The waste heat utilization device for the rotary kiln as claimed in claim 1, wherein: the inside fixedly connected with baffle (3) of box (1), one side of box (1) is provided with intake pipe (10), the top of box (1) is provided with outlet duct (13), the inner wall of box (1) is provided with transparent window (32), one side of box (1) is provided with control panel (31), motor (12) and control panel (31) electric connection.

8. The use method of the waste heat utilization device for the rotary kiln according to any one of claims 1 to 7, characterized by comprising the steps of:

s1, when the box is used, smoke enters the box body (1) from the air inlet pipe (10), the filter plate (7) filters large impurities in the smoke, the smoke is contacted with the heat exchange pipe (4) through the through hole (15), the heat in the smoke is absorbed and utilized by the heat exchange pipe (4), and then the smoke is discharged from the air outlet pipe (13);

s2, after long-time use, when the filter plate (7) and the heat exchange tube (4) need to be cleaned, the motor (12) is started through the control panel (31), the motor (12) enables the transmission shaft (11) to rotate, the transmission shaft (11) enables the second hairbrush (14) to rotate, the second hairbrush (14) cleans the heat exchange tube (4), the transmission shaft (11) enables the first bevel gear (17) to rotate, the first bevel gear (17) enables the worm (19) to rotate through the second bevel gear (18), the worm (19) enables the worm gear (95) to rotate, the worm gear (95) enables the reciprocating screw rod (92) to rotate, the reciprocating screw rod (92) enables the sliding block (93) to reciprocate, and the sliding block (93) enables the first hairbrush (91) to reciprocate to clean the filter plate (7);

s3, the worm (19) enables the driving belt pulley (20) to rotate, the driving belt pulley (20) enables the driven belt pulley (21) to rotate through a belt, the driven belt pulley (21) enables the rotating rod (22) to rotate, the rotating rod (22) enables the fan blades (16) to rotate, the fan blades (16) blow the filter plate (7), impurities on the filter plate (7) fall off, the cleaning effect is improved, after the collecting box (6) is fully collected, the unlocking block (27) is pulled downwards, the unlocking block (27) enables the moving block (24) to move through the connecting rod (26), the moving block (24) enables the fixture block (34) to move out of the clamping groove (30) through the L-shaped fixing rod (23), the collecting box (6) can be removed later, when the collecting box (6) is installed, the collecting box (6) is inserted in alignment with the box body (1), the fixture block (34) is extruded by the box body (1) to move, and the spring (28) is compressed, when the clamping block (34) is aligned with the clamping groove (30), the spring (28) resets, so that the clamping block (34) is clamped in the clamping groove (30), and the installation can be completed.