CN218627695U

CN218627695U - Useless rotary kiln high temperature waste heat recovery device of danger

Info

Publication number: CN218627695U
Application number: CN202223068809.7U
Authority: CN
Inventors: ***; 陈生杰; 李兰兰; 张文超; 王静文
Original assignee: Henan Nengxin Environmental Protection Technology Co ltd
Current assignee: Henan Nengxin Environmental Protection Technology Co ltd
Priority date: 2022-11-19
Filing date: 2022-11-19
Publication date: 2023-03-14
Anticipated expiration: 2032-11-19

Abstract

The utility model relates to the technical field of auxiliary equipment of rotary kilns, in particular to a high-temperature waste heat recovery device of a hazardous waste rotary kiln, which comprises an arc cover and a bracket, wherein the arc cover is positioned above a main body of the rotary kiln, and the inner wall of the arc cover is matched with the outer wall of the main body of the rotary kiln; the support includes two stand frames of arranging side by side, and two stands set up respectively at the head and the afterbody of arc lid, all are equipped with lifting unit on two stand frames, and the head and the afterbody of arc lid are connected with lifting unit on the stand frame respectively. The beneficial effects are that: lifting units on two sets of stands drive the arc lid and reciprocate, are convenient for carry on the installation of arc lid after making the installation of rotary kiln main part and place, and two lifting units can make the head and the afterbody of arc lid be in different heights simultaneously, and then make the slope of arc lid, when the slope of rotary kiln main part was arranged, the arc lid that the slope was arranged can be better with the outer wall contact of rotary kiln main part, be favorable to carrying out the waste heat recovery on rotary kiln surface.

Description

Useless rotary kiln high temperature waste heat recovery device of danger

Technical Field

The utility model relates to a rotary kiln auxiliary assembly technical field especially indicates a useless rotary kiln high temperature waste heat recovery device of danger.

Background

The rotary kiln is a rotary calcining kiln, which comprises a cement rotary kiln for calcining cement clinker, the rotary kiln of the cement rotary kiln has firm structure, stable operation and high quality of discharged products, and the rotary kiln continuously rotates and is continuously in a high-temperature heating state in the production and operation process. When calcining cement through the cement rotary kiln, the cement rotary kiln barrel surface can produce higher temperature, if adopt the mode cooling of stewing after the rotary kiln uses, not only required time is longer, and thermal direct loss is comparatively extravagant moreover, and the very big part of its heat can be recycled.

Patent No. 202220236062.2 discloses a waste heat recovery device that rotary kiln used, including kiln frame and rotary kiln body, the kiln frame is equipped with first recovery lid and second recovery lid, and the surface in the rotary kiln body is all pasted to one side that just first recovery lid and second recovery lid are close to each other, carries out the rotary kiln surface through retrieving the lid and is waste heat recovery. However, most of the existing rotary kilns have an inclination angle adjusting function, and the recovery cover in the above patent does not have the inclination angle adjusting function, that is, after the rotary kiln is inclined, the recovery cover cannot be in good contact with the surface of the rotary kiln, so that the waste heat on the surface of the rotary kiln cannot be recovered.

SUMMERY OF THE UTILITY MODEL

The utility model provides a useless rotary kiln high temperature waste heat recovery device of danger has solved the unsuitable problem of waste heat recovery device after the rotary kiln slope among the prior art.

The technical scheme of the utility model is realized like this:

a high-temperature waste heat recovery device of a hazardous waste rotary kiln comprises an arc-shaped cover and a support, wherein the arc-shaped cover is positioned above a rotary kiln main body, and the inner wall of the arc-shaped cover is matched with the outer wall of the rotary kiln main body; the support includes two stand frames of arranging side by side, and two stands set up respectively at the head and the afterbody of arc lid, all are equipped with lifting unit on two stand frames, and the head and the afterbody of arc lid are connected with lifting unit on the stand frame respectively. The lifting assembly controls the lifting of the head and the tail of the arc-shaped cover, so that the head and the tail of the arc-shaped cover are located at different heights, and the arc-shaped cover is inclined.

The lifting assembly comprises a vertical sliding groove and a lead screw, the lead screw is vertically arranged in the vertical sliding groove, the top wall of the lead screw, which upwards penetrates through the vertical sliding groove, is connected with a lifting motor arranged at the top of the vertical sliding groove, and a lead screw nut and the lead screw nut are arranged on the lead screw and are in sliding fit with the side wall of the vertical sliding groove. The lifting motor rotates to drive the screw rod to rotate, and then the screw rod nut is driven to move up and down in the vertical sliding groove.

The top of arc lid is equipped with connecting seat and slide rail, and the slide rail is arranged along the axis direction of arc lid, and sliding connection has the slider on the slide rail, and slider and connecting seat correspond with two stand frame positions respectively, and rotate respectively in slider and the connecting seat and be equipped with the bracing piece, the both ends and the screw nut fixed connection of bracing piece. The bracing piece reciprocates along with screw nut, and then drives reciprocating of arc lid through the connecting seat.

The inner arc surface of the arc cover is provided with heat pipes which are arranged in an S shape, and the outer side of the arc cover is provided with an inlet and an outlet which are communicated with the heat pipes.

The rotary kiln comprises a base, a rotary kiln body and a supporting wheel assembly, wherein the rotary kiln body is placed on the base, the base is provided with a head lifting platform corresponding to the head of the rotary kiln body and a tail fixing platform corresponding to the tail of the rotary kiln body, the head lifting platform and the tail fixing platform are respectively provided with a supporting wheel assembly for supporting the rotary kiln body, and the head lifting platform is further provided with a driving assembly for driving the rotary kiln body to rotate.

The base is provided with a hydraulic cylinder, the telescopic end of the hydraulic cylinder is connected with the bottom surface of the head lifting platform, the base is provided with a guide pillar which is vertically arranged, the head lifting platform is provided with a guide hole, and the guide pillar is in sliding fit with the guide hole. The guide post has the guide effect, and the flexible head lift platform that drives of pneumatic cylinder moves along the guide post direction.

The upper surface of the head lifting platform is provided with a riding wheel support, a head riding wheel is rotatably arranged on the riding wheel support, a head guide ring is arranged at the head of the rotary kiln main body, and the head riding wheel is matched with the head guide ring.

The driving assembly comprises a driving motor and a gear, the driving motor is fixedly arranged on a motor support on the upper surface of the head lifting platform, the gear is fixedly arranged on an output shaft of the driving motor, a gear ring is arranged at the head of the rotary kiln body, and the gear is meshed with the gear ring.

The tail fixing platform is fixedly arranged on the base, a supporting wheel support is arranged on the tail fixing platform, a tail supporting wheel is rotatably arranged on the supporting wheel support, a tail guide ring is arranged at the tail of the rotary kiln main body, and the tail supporting wheel is matched with the tail guide ring.

The utility model discloses the beneficial effect who produces is: the lifting assemblies on the two groups of stand columns drive the arc-shaped covers to move up and down, so that the arc-shaped covers can be conveniently installed and placed after the rotary kiln main body is installed, meanwhile, the heads and the tails of the arc-shaped covers can be positioned at different heights by the two lifting assemblies, the arc-shaped covers are inclined, when the rotary kiln main body is inclined, the inclined arc-shaped covers can be better contacted with the outer wall of the rotary kiln main body, and waste heat recovery on the surface of the rotary kiln is facilitated; the heat pipes on the inner sides of the arc covers are arranged in an S shape, so that the medium in the heat pipes can exchange heat with the rotary kiln for a longer time, and the waste heat recovery efficiency is ensured.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the description below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a high-temperature waste heat recovery device of a hazardous waste rotary kiln.

FIG. 2 is a side view of a high-temperature waste heat recovery device of a hazardous waste rotary kiln.

In the figure: 1-base, 2-head lifting platform, 21-hydraulic cylinder, 22-head riding wheel, 23-driving motor, 24-gear, 3-support, 31-arc cover, 311-heat pipe, 312-inlet, 313-outlet, 314-connecting seat, 315-sliding rail, 32-vertical sliding groove, 33-screw rod, 34-supporting rod, 35-lifting motor, 36-sliding block, 4-tail fixing platform, 41-tail riding wheel, 5-rotary kiln body, 51-head guide ring, 52-gear ring and 53-tail guide ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Embodiment 1, as shown in fig. 1, a high-temperature waste heat recovery device of a hazardous waste rotary kiln comprises an arc-shaped cover 31 and a support 3, wherein the arc-shaped cover 31 is positioned above a rotary kiln main body 5, and the inner wall of the arc-shaped cover 31 is matched with the outer wall of the rotary kiln main body 5; the support 3 includes two stand frames arranged side by side, two stands set up respectively at the head and the afterbody of arc lid 31, all are equipped with lifting unit on two stand frames, and the head and the afterbody of arc lid 31 are connected with lifting unit on the stand frame respectively. In this embodiment, the stand frame includes two mutual dispositions's stand, and lifting unit sets up in the inboard of stand frame, and lifting unit can drive arc lid 31 and reciprocate to can make the head and the afterbody of arc lid 31 be in different heights, and then realize the slope of arc lid 31, arc lid 31 can with the better contact of rotary kiln main part 5's outer wall when rotary kiln main part 5 inclines, guarantee heat recovery efficiency.

Further, lifting unit includes vertical spout 32 and lead screw 33, and the vertical setting of lead screw 33 is in vertical spout 32, and lead screw 33 upwards passes the roof of vertical spout 32 and is connected with the elevator motor 35 who sets up at vertical spout 32 top, is equipped with screw nut and the lateral wall sliding fit of vertical spout 32 on the lead screw 33. As shown in fig. 2, a connecting seat 314 and a sliding rail 315 are disposed at the top of the arc-shaped cover 31, the sliding rail 315 is disposed along the axial direction of the arc-shaped cover 31, a sliding block 36 is slidably connected to the sliding rail 315, the sliding block 36 and the connecting seat 314 respectively correspond to the two upright frames, a support rod 34 is rotatably disposed in the sliding block 36 and the connecting seat 314, and two ends of the support rod 34 are fixedly connected to the screw nut. The slide rail 315 is a T-shaped slide rail, and a T-shaped groove matched with the slide rail is arranged on the slide block 36. The driving motor 35 is started to drive the screw rod 33 to rotate, and then drives the screw nut to slide up and down in the vertical chute 32, and drives the supporting rod 34 to move through the up-and-down sliding of the screw nut, and then drives the arc-shaped cover 31 to lift. When the lifting components on the two upright frames work respectively, the two support rods 34 are driven to be at different heights, so that the arc-shaped cover 31 is inclined, the arc-shaped cover 31 is attached to the rotary kiln, and the sliding block 36 slides on the sliding rail 315 when the arc-shaped cover 31 is inclined, so that interference is avoided.

Further, a heat pipe 311 is arranged on the inner arc surface of the arc cover 31, the heat pipes 311 are arranged in an S shape, and an inlet 312 and an outlet 313 which are communicated with the heat pipe 311 are arranged on the outer side of the arc cover 31. The heat pipes 311 arranged in the S shape can enable the medium in the heat pipes 311 to be in contact with the surface of the rotary kiln main body 5 for a longer time, so that the heat recovery efficiency is ensured; the inlet 312 and the outlet 313 are respectively connected with a hose, the inlet 312 is communicated with the medium storage pool through the hose, the hose on the inlet 312 is provided with a pump, a heat absorbing medium is introduced into the heat pipe 311 through the inlet 312, and the heat absorbing medium is discharged from the outlet 313 for standby after absorbing heat at the position of the heat pipe 311, so that the recovery of the waste heat on the surface of the rotary kiln is realized.

Embodiment 2, a useless rotary kiln high temperature waste heat recovery device of danger, rotary kiln main part 5 is placed on base 1, be equipped with the head lift platform 2 that corresponds with 5 head positions of rotary kiln main part on the base 1, the afterbody fixed platform 4 that corresponds with 5 afterbody positions of rotary kiln main part, all be equipped with the carrier roller subassembly that is used for supporting rotary kiln main part 5 on head lift platform 2 and the afterbody fixed platform 4, still be equipped with on the head lift platform 2 and be used for driving 5 pivoted drive assembly of rotary kiln main part. The driving assembly drives the rotary kiln main body 5 to rotate, the supporting roller assembly supports the rotary kiln main body 5, and the lifting of the head lifting platform 2 drives the lifting of the head of the rotary kiln main body 5, so that the rotary kiln main body 5 is inclined.

Further, a hydraulic cylinder 21 is arranged on the base 1, the telescopic end of the hydraulic cylinder 21 is connected with the bottom surface of the head lifting platform 2, a guide pillar which is vertically arranged is arranged on the base 1, a guide hole is formed in the head lifting platform 2, and the guide pillar is in sliding fit with the guide hole. The hydraulic cylinder 21 stretches and retracts to drive the head lifting platform 2 to move up and down along the guide post, and then the head of the rotary kiln main body 5 is lifted.

Further, a riding wheel support is arranged on the upper surface of the head lifting platform 2, a head riding wheel 22 is rotatably arranged on the riding wheel support, a head guide ring 51 is arranged at the head of the rotary kiln main body 5, and the head riding wheel 22 is matched with the head guide ring 51. The tail fixing platform 4 is fixedly arranged on the base 1, a supporting wheel support is arranged on the tail fixing platform 4, a tail supporting wheel 41 is rotatably arranged on the supporting wheel support, a tail guide ring 53 is arranged at the tail of the rotary kiln main body 5, and the tail supporting wheel 41 is matched with the tail guide ring 53. The head idler 22 and tail idler 41 together provide support for the rotary kiln body 5.

Further, the driving assembly comprises a driving motor 23 and a gear 24, the driving motor 23 is fixedly arranged on a motor support on the upper surface of the head lifting platform 2, the gear 24 is fixedly arranged on an output shaft of the driving motor 23, the head of the rotary kiln body 5 is provided with a gear ring 52, and the gear 24 is meshed with the gear ring 52. The driving motor 23 is started to drive the gear 24 to rotate, and the gear 24 drives the rotary kiln body 5 to rotate through the gear ring 52.

The above description is only for the preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The high-temperature waste heat recovery device of the hazardous waste rotary kiln is characterized by comprising an arc-shaped cover (31) and a support (3), wherein the arc-shaped cover (31) is positioned above a rotary kiln main body (5), and the inner wall of the arc-shaped cover (31) is matched with the outer wall of the rotary kiln main body (5); the support (3) comprises two upright frames which are arranged side by side, the two upright frames are respectively arranged at the head and the tail of the arc-shaped cover (31), the two upright frames are respectively provided with a lifting assembly, and the head and the tail of the arc-shaped cover (31) are respectively connected with the lifting assemblies on the two upright frames.

2. The high-temperature waste heat recovery device for the hazardous waste rotary kiln according to claim 1, wherein the lifting assembly comprises a vertical chute (32) and a lead screw (33), the lead screw (33) is vertically arranged in the vertical chute (32), the lead screw (33) upwardly penetrates through the top wall of the vertical chute (32) and is connected with a lifting motor (35) arranged at the top of the vertical chute (32), and a lead screw nut is arranged on the lead screw (33) and is in sliding fit with the side wall of the vertical chute (32).

3. The high-temperature waste heat recovery device for the hazardous waste rotary kiln according to claim 2, wherein a connecting seat (314) and a sliding rail (315) are arranged at the top of the arc-shaped cover (31), the sliding rail (315) is arranged along the axial direction of the arc-shaped cover (31), a sliding block (36) is connected onto the sliding rail (315) in a sliding manner, the sliding block (36) and the connecting seat (314) correspond to two upright frames respectively in position, supporting rods (34) are respectively arranged in the sliding block (36) and the connecting seat (314) in a rotating manner, and two ends of each supporting rod (34) are fixedly connected with a lead screw nut.

4. The high-temperature waste heat recovery device of the hazardous waste rotary kiln according to claim 1, 2 or 3, wherein the heat pipes (311) are arranged on the inner arc surface of the arc-shaped cover (31), the heat pipes (311) are arranged in an S shape, and the outer side of the arc-shaped cover (31) is provided with an inlet (312) and an outlet (313) which are communicated with the heat pipes (311).

5. The high-temperature waste heat recovery device for the hazardous waste rotary kiln according to claim 4, wherein the rotary kiln body (5) is placed on the base (1), the base (1) is provided with a head lifting platform (2) corresponding to the head of the rotary kiln body (5) and a tail fixing platform (4) corresponding to the tail of the rotary kiln body (5), the head lifting platform (2) and the tail fixing platform (4) are both provided with supporting roller assemblies for supporting the rotary kiln body (5), and the head lifting platform (2) is further provided with a driving assembly for driving the rotary kiln body (5) to rotate.

6. The high-temperature waste heat recovery device of the hazardous waste rotary kiln according to claim 5, wherein the base (1) is provided with a hydraulic cylinder (21), the telescopic end of the hydraulic cylinder (21) is connected with the bottom surface of the head lifting platform (2), the base (1) is provided with a guide pillar which is vertically arranged, the head lifting platform (2) is provided with a guide hole, and the guide pillar is in sliding fit with the guide hole.

7. The high-temperature waste heat recovery device of the hazardous waste rotary kiln according to claim 6, characterized in that a supporting roller support is arranged on the upper surface of the head lifting platform (2), a head supporting roller (22) is rotatably arranged on the supporting roller support, a head guide ring (51) is arranged at the head of the rotary kiln body (5), and the head supporting roller (22) is matched with the head guide ring (51).

8. The high-temperature waste heat recovery device for the hazardous waste rotary kiln according to claim 5, 6 or 7, wherein the driving assembly comprises a driving motor (23) and a gear (24), the driving motor (23) is fixedly arranged on a motor support on the upper surface of the head lifting platform (2), the gear (24) is fixedly arranged on an output shaft of the driving motor (23), the head of the rotary kiln body (5) is provided with a gear ring (52), and the gear (24) is meshed with the gear ring (52).

9. The high-temperature waste heat recovery device of the hazardous waste rotary kiln according to claim 8, wherein the tail fixing platform (4) is fixedly arranged on the base (1), a supporting roller bracket is arranged on the tail fixing platform (4), a tail supporting roller (41) is rotatably arranged on the supporting roller bracket, a tail guide ring (53) is arranged at the tail of the rotary kiln body (5), and the tail supporting roller (41) is matched with the tail guide ring (53).