CN212720930U - Kiln hood waste gas recycle device for cement manufacture - Google Patents
Kiln hood waste gas recycle device for cement manufacture Download PDFInfo
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- CN212720930U CN212720930U CN202021691553.3U CN202021691553U CN212720930U CN 212720930 U CN212720930 U CN 212720930U CN 202021691553 U CN202021691553 U CN 202021691553U CN 212720930 U CN212720930 U CN 212720930U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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Abstract
The utility model relates to the technical field of energy conservation of rotary kilns, in particular to a kiln head waste gas recycling device for cement production, which comprises a supporting box body, wherein a sealed cavity structure is arranged in the supporting box body; the heat exchange mechanism is arranged in the supporting box body and is used for recovering heat carried by waste gas discharged by the kiln head so as to be utilized for the second time; the dust removal mechanism is communicated with the heat exchange mechanism through a second air inlet pipe, and waste gas is received through a first air inlet pipe; the cleaning mechanism is communicated with the heat exchange mechanism through a second air outlet pipe and is communicated with the outside through a first air outlet pipe; high temperature waste gas is through the water convection conduction heat transfer in first cooling tube and the water injection case, makes the energy transfer that carries in the waste gas to the aquatic to carry out the reutilization to the heat, heat preservation mechanism prevents that the heat from scattering and disappearing easily and reinforcing thermal recovery again, and dust removal mechanism detaches the dust granule in with waste gas, prevents that the heat dissipation pipeline from blockking up the influence heat transfer, and waste gas flows through wiper mechanism and lets in the atmosphere again, reduces the pollution to the environment.
Description
Technical Field
The utility model relates to a rotary kiln energy-conserving technical field especially relates to a kiln hood waste gas recovery utilizes device for cement manufacture.
Background
With the continuous promotion of urbanization development and the continuous improvement of the living standard of people, various high-energy-consumption buildings are built in various places, so that the energy consumption and the market share proportion of the building material industry are increased continuously, wherein the cement industry accounts for about half, however, the heat of the waste gas discharged from the rotary cement kiln barrel cannot be recycled well by a plurality of enterprises, and the waste gas is naturally dissipated in the air or is cooled by devices such as an air blower and the like. This not only causes severe thermal pollution to the surrounding environment, but also causes a large amount of waste of energy. Therefore, how to effectively and reasonably recover the waste heat resources on the surface of the cylinder body of the cement rotary kiln is an important research on energy conservation and emission reduction in the cement industry.
In view of the above problems, the present designer is actively making research and innovation based on the practical experience and professional knowledge that is abundant for many years in engineering application of such products, so as to create a kiln head waste gas recycling device for cement production, and make it more practical.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: the utility model provides a kiln hood waste gas recycle device for cement manufacture carries out the reutilization to the heat that the kiln hood exhaust gas of rotary kiln carried.
In order to achieve the above purpose, the utility model adopts the technical scheme that: a kiln hood waste gas recycle device for cement manufacture includes: the device comprises a supporting box body, a heat exchange mechanism, a heat preservation mechanism, a dust removal mechanism and a cleaning mechanism;
a cavity is arranged in the supporting box body and is a sealing structure, and a water inlet pipe, a water outlet pipe, a second air inlet pipe and a second air outlet pipe penetrate through the outer wall of the supporting box body;
the heat exchange mechanism is arranged in the supporting box body and is communicated with the water inlet pipe, the water outlet pipe, the second air inlet pipe and the second air outlet pipe, and the heat exchange mechanism is used for recovering heat carried by waste gas discharged by the kiln head so as to be reutilized;
the heat preservation mechanism is arranged in the supporting box body and is positioned between the outer wall of the heat exchange mechanism and the inner wall of the supporting box body;
the dust removal mechanism is arranged at the upper end of the supporting box body, is communicated with the heat exchange mechanism through the second air inlet pipe, and receives waste gas through the first air inlet pipe;
the cleaning mechanism and the dust removal mechanism are arranged at the upper end of the supporting box body in parallel, communicated with the heat exchange mechanism through the second air outlet pipe and communicated with the outside through the first air outlet pipe.
Further, the heat exchange mechanism comprises a water injection tank fixedly connected with the inner wall of the upper end of the supporting box body, the water injection tank is of a cylinder structure, a first radiating pipe and a plurality of baffle plates are arranged on the inner wall of the water injection tank, and a second radiating pipe is arranged on the outer wall of the water injection tank.
Further, the one end of first cooling tube with second intake-tube connection, the other end of first cooling tube pass through the connecting pipe with the one end of second cooling tube is connected, the other end of second cooling tube with the second outlet duct is connected.
Furthermore, the first radiating pipes extend along the axial direction of the water injection tank, the first radiating pipes are arranged in parallel along the circumferential direction of the water injection tank to form a continuous S-shaped structure, and the first radiating pipes are uniformly distributed in the inner cavity space of the water injection tank;
the second heat dissipation pipe extends along the circumferential direction of the outer wall of the water injection tank and is arranged in parallel along the axial direction of the water injection tank.
Furthermore, the baffle plates are vertically arranged on the inner walls of two symmetrical sides of the water injection tank, and two adjacent baffle plates are respectively arranged on the inner walls in a staggered manner;
the baffle plate is provided with a pipe hole corresponding to the first radiating pipe, and the diameter of the pipe hole is matched with the outer diameter of the first radiating pipe.
Further, the heat insulation mechanism comprises a heat collection cover and heat insulation materials; insulation material sets up on the circumference of water injection tank and the bottom inner wall, the thermal-arrest cover corresponds the second cooling tube sets up insulation material's inboard.
Further, dust removal mechanism is including setting up the dust removal case of supporting box up end the inside level of dust removal case is provided with an at least dust removal subassembly, just set up on one side lateral wall of dust removal case with the opening that the subassembly suited that removes dust, the dust removal subassembly can pass through the opening with the dust removal case merges or separates.
Further, the dust removal subassembly includes that horizontal symmetry sets up the slide rail of dust removal incasement wall, braced frame pass through the gyro wheel with slide rail sliding connection the last filter screen that is provided with of braced frame.
Further, the upper end of dust removal case is provided with first intake pipe, the bottom of dust removal case is passed through the second intake pipe with first cooling tube in the heat transfer mechanism water injection case is connected.
Furthermore, the cleaning mechanism comprises a cleaning box arranged on the upper section of the supporting box body, and cleaning liquid is arranged in the cleaning box to clean the discharged waste gas; the bottom of the cleaning box is connected with the second radiating pipe in the heat exchange mechanism through the second air outlet pipe.
The utility model has the advantages that: high temperature waste gas is through the normal atmospheric temperature water convection conduction heat transfer in first cooling tube and the water injection case, make the aquatic of the water injection case of flowing through of energy transfer who carries in the waste gas, carry out reutilization to the heat, heat preservation mechanism sets up the outside at heat transfer mechanism, prevent that the heat from scattering and disappearing easily and reinforcing thermal recycling, be provided with dust removal mechanism before waste gas enters into heat transfer mechanism, detach the dust particle who carries in the waste gas, prevent that the heat dissipation pipeline from blockking up the influence heat transfer, waste gas flows through wiper mechanism behind the heat transfer mechanism and is letting in the atmosphere, reduce the pollution of waste gas to the environment.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in 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 an embodiment of the present invention;
FIG. 2 is a schematic structural view of a heat exchange mechanism in an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a dust removing mechanism in an embodiment of the present invention.
Reference numerals: 1. supporting the box body; 11. a water inlet pipe; 12. a water outlet pipe; 13. a second intake pipe; 14. a second air outlet pipe; 2. a heat exchange mechanism; 21. a water injection tank; 22. a first radiating pipe; 23. a baffle plate; 231. a tube hole; 24. a second heat dissipation pipe; 25. a connecting pipe; 3. a heat preservation mechanism; 31. a heat collection cover; 32. a thermal insulation material; 4. a dust removal mechanism; 41. a first intake pipe; 42. a dust removal box; 43. a dust removal assembly; 431. a slide rail; 432. a roller; 433. a support frame; 434. a filter screen; 5. a cleaning mechanism; 51. a first air outlet pipe; 52. and (5) cleaning the tank.
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.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The kiln head waste gas recycling device for cement production shown in fig. 1 to 3 comprises a supporting box body 1, a heat exchange mechanism 2, a heat preservation mechanism 3, a dust removal mechanism 4 and a cleaning mechanism 5; a cavity is arranged in the supporting box body 1 and is a sealing structure, and a water inlet pipe 11, a water outlet pipe 12, a second air inlet pipe 13 and a second air outlet pipe 14 penetrate through the outer wall of the supporting box body 1; the heat exchange mechanism 2 is arranged inside the supporting box body 1 and is communicated with the water inlet pipe 11, the water outlet pipe 12, the second air inlet pipe 13 and the second air outlet pipe 14, and the heat exchange mechanism 2 is used for recovering heat carried by waste gas discharged from the kiln head so as to be utilized for the second time; the heat preservation mechanism 3 is arranged in the supporting box body 1 and is positioned between the outer wall of the heat exchange mechanism 2 and the inner wall of the supporting box body 1; the dust removal mechanism 4 is arranged at the upper end of the supporting box body 1, is communicated with the heat exchange mechanism 2 through a second air inlet pipe 13, and receives waste gas through a first air inlet pipe 41; the cleaning mechanism 5 and the dust removing mechanism 4 are arranged at the upper end of the supporting box body 1 in parallel, communicated with the heat exchange mechanism 2 through the second air outlet pipe 14 and communicated with the outside through the first air outlet pipe 51.
In the specific implementation in-process, high temperature waste gas is discharged from the rotary kiln head, let in the dust removal subassembly through first intake pipe, filter behind the dust particle that carries in the waste gas, waste gas lets in the first cooling tube in the water injection case in the heat transfer mechanism through the second inlet port, with the water convection conduction heat transfer in the water injection case of flowing through, the second cooling tube of rethread connecting pipe inflow water injection case outer wall, with water injection case conduction heat transfer, then waste gas lets in the cleaning box through the second outlet duct, discharge in the atmosphere through first outlet duct after wasing waste gas. The recycling of the waste gas heat of the rotary kiln is realized.
In this embodiment, the heat exchanging mechanism 2 includes a water injection tank 21 fixedly connected to the inner wall of the upper end of the support case 1, the water injection tank 21 is configured as a cylindrical structure, a first heat dissipating pipe 22 and a plurality of baffle plates 23 are disposed on the inner wall of the water injection tank 21, and a second heat dissipating pipe 24 is disposed on the outer wall of the water injection tank 21; one end of the first radiating pipe 22 is connected to the second inlet pipe 13, the other end of the first radiating pipe 22 is connected to one end of the second radiating pipe 24 through a connecting pipe, and the other end of the second radiating pipe 24 is connected to the second outlet pipe 14.
As a preferred embodiment of the present application, the first radiating pipes 22 are extended along the axial direction of the water injection tank 21, and the first radiating pipes 22 are arranged in parallel along the axial direction perpendicular to the water injection tank 21 in a continuous S-shaped structure, and the first radiating pipes 22 are uniformly distributed in the inner cavity space of the water injection tank 21; the second radiating pipes 24 extend along the circumferential direction of the outer wall of the water injection tank 21 and are arranged in parallel along the axial direction thereof; the baffle plates 23 are vertically arranged on the inner walls of two symmetrical sides of the water injection tank 21, and two adjacent baffle plates 23 are respectively arranged on the inner walls in a staggered manner; the baffle plate 23 is opened with a tube hole 231 corresponding to the first heat pipe 22, and the diameter of the tube hole 231 is adapted to the outer diameter of the first heat pipe 22.
The first radiating pipe is arranged in the main water tank in a winding mode, so that the heat exchange area between waste gas and water is increased, the heat exchange is more sufficient, and the heat exchange effect is enhanced; the second radiating pipe is wound on the outer wall of the water injection tank, so that the waste gas and the water injection tank conduct heat again, the heat exchange area is increased, and the heat exchange effect is enhanced; the baffle plate increases the path of water flowing through, so that the water flow can be fully contacted with the first radiating pipe.
As a preferred embodiment of the present application, the heat insulating mechanism 3 includes a heat collecting cover 31 and a heat insulating material 32; the heat insulating material 32 is disposed on the circumferential direction and the bottom inner wall of the water injection tank 21, and the heat collecting cover 31 is disposed at the inner side of the heat insulating material 32 corresponding to the second radiating pipe 24. The heat collection cover is arranged to be an aluminum material, can conduct heat with the second radiating pipe and the water injection tank in a radiation mode, collects redundant heat of the second radiating pipe and the water injection tank, and feeds the redundant heat back to the water injection tank.
As a preferred embodiment of the present application, the dust removing mechanism 4 includes a dust removing box 42 disposed on the upper end surface of the supporting box 1, at least one dust removing assembly 43 is horizontally disposed inside the dust removing box 42, an opening corresponding to the dust removing assembly 43 is disposed on a side wall of the dust removing box 42, and the dust removing assembly 43 can be combined with or separated from the dust removing box 42 through the opening. The dust removing assembly 43 comprises slide rails 431 horizontally and symmetrically arranged on the inner wall of the dust removing box 42, a supporting frame 433 is slidably connected with the slide rails 431 through rollers 432, and a filter screen 434 is arranged on the supporting frame 433. The upper end of the dust removing box 42 is provided with a first air inlet pipe 41, and the bottom of the dust removing box 42 is connected with the first heat dissipation pipe 22 in the water injection box 21 of the heat exchange mechanism 2 through a second air inlet pipe 13.
Dust removal mechanism sets up to pull formula structure, and the convenience sets up dust removal mechanism before waste gas enters into heat transfer mechanism to the change and the clearance of dust excluding hood, detaches the dust particle that carries in the waste gas, prevents that the heat dissipation pipeline from blockking up the influence heat transfer.
As a preferred embodiment of the present application, the cleaning mechanism 5 includes a cleaning tank 52 disposed on the upper section of the support box 1, and a cleaning solution is disposed in the cleaning tank 52 for cleaning the discharged exhaust gas; the bottom of the cleaning box 52 is connected with the second radiating pipe 24 in the heat exchanging mechanism 2 through the second air outlet pipe 14. The waste gas flows through the cleaning mechanism after flowing out of the heat exchange mechanism and is introduced into the atmosphere, so that the pollution of the waste gas to the environment is reduced.
It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The utility model provides a kiln hood waste gas recycle device for cement manufacture which characterized in that includes: the device comprises a supporting box body (1), a heat exchange mechanism (2), a heat preservation mechanism (3), a dust removal mechanism (4) and a cleaning mechanism (5);
a cavity is arranged in the supporting box body (1) and is of a sealing structure, and a water inlet pipe (11), a water outlet pipe (12), a second air inlet pipe (13) and a second air outlet pipe (14) penetrate through the outer wall of the supporting box body (1);
the heat exchange mechanism (2) is arranged inside the supporting box body (1) and is communicated with the water inlet pipe (11), the water outlet pipe (12), the second air inlet pipe (13) and the second air outlet pipe (14), and the heat exchange mechanism (2) is used for recycling heat carried by waste gas discharged from a kiln head so as to be reused;
the heat preservation mechanism (3) is arranged in the supporting box body (1) and is positioned between the outer wall of the heat exchange mechanism (2) and the inner wall of the supporting box body (1);
the dust removal mechanism (4) is arranged at the upper end of the supporting box body (1), is communicated with the heat exchange mechanism (2) through the second air inlet pipe (13), and receives waste gas through the first air inlet pipe (41);
the cleaning mechanism (5) and the dust removing mechanism (4) are arranged at the upper end of the supporting box body (1) in parallel, communicated with the heat exchange mechanism (2) through the second air outlet pipe (14) and communicated with the outside through the first air outlet pipe (51).
2. The kiln head waste gas recycling device for cement production as claimed in claim 1, wherein the heat exchanging mechanism (2) comprises a water injection tank (21) fixedly connected with the inner wall of the upper end of the supporting box body (1), the water injection tank (21) is provided with a column structure, the inner wall of the water injection tank (21) is provided with a first heat dissipation pipe (22) and a plurality of baffle plates (23), and the outer wall of the water injection tank (21) is provided with a second heat dissipation pipe (24).
3. The kiln head waste gas recycling device for cement production as claimed in claim 2, wherein one end of the first heat pipe (22) is connected to the second air inlet pipe (13), the other end of the first heat pipe (22) is connected to one end of the second heat pipe (24) through a connecting pipe (25), and the other end of the second heat pipe (24) is connected to the second air outlet pipe (14).
4. The kiln head waste gas recycling device for cement production as claimed in claim 3, wherein the first heat dissipation pipes (22) are extended along the axial direction of the water injection tank (21), and the first heat dissipation pipes (22) are arranged in parallel along the axial direction perpendicular to the water injection tank (21) to form a continuous S-shaped structure, and the first heat dissipation pipes (22) are uniformly distributed in the inner cavity space of the water injection tank (21); the second radiating pipes (24) extend along the circumferential direction of the outer wall of the water injection tank (21) and are arranged in parallel along the axial direction of the water injection tank.
5. The kiln head waste gas recycling device for cement production as recited in claim 4, wherein the baffle plates (23) are vertically arranged on the symmetrical inner walls of the two sides of the water injection tank (21), and two adjacent baffle plates (23) are respectively arranged on the inner walls in a staggered manner; the baffle plate (23) is provided with a pipe hole (231) corresponding to the first radiating pipe (22), and the diameter of the pipe hole (231) is adapted to the outer diameter of the first radiating pipe (22).
6. The kiln head waste gas recycling device for cement production as defined in claim 4, wherein the heat insulation mechanism (3) comprises a heat collection cover (31) and a heat insulation material (32); insulation material (32) set up on the circumference of water injection tank (21) and the bottom inner wall, thermal-arrest cover (31) correspond second cooling tube (24) set up the inboard of insulation material (32).
7. The kiln head waste gas recycling device for cement production as defined in claim 1, wherein the dust removing mechanism (4) comprises a dust removing box (42) disposed on the upper end surface of the supporting box body (1), at least one dust removing component (43) is horizontally disposed inside the dust removing box (42), an opening corresponding to the dust removing component (43) is disposed on one side wall of the dust removing box (42), and the dust removing component (43) can be combined with or separated from the dust removing box (42) through the opening.
8. The kiln head waste gas recycling device for cement production as claimed in claim 7, wherein the dust removing assembly (43) comprises slide rails (431) horizontally and symmetrically arranged on the inner wall of the dust removing box (42), a supporting frame (433) is slidably connected with the slide rails (431) through rollers (432), and a filter screen (434) is arranged on the supporting frame (433).
9. The kiln head waste gas recycling device for cement production as claimed in claim 8, wherein the first air inlet pipe (41) is arranged at the upper end of the dust removing box (42), and the bottom of the dust removing box (42) is connected with the first heat dissipation pipe (22) in the water injection box (21) of the heat exchange mechanism (2) through the second air inlet pipe (13).
10. The kiln head waste gas recycling device for cement production as defined in claim 1, wherein the cleaning mechanism (5) comprises a cleaning tank (52) arranged on the upper section of the support box body (1), and a cleaning liquid is arranged in the cleaning tank (52) to clean the discharged waste gas; the bottom of the cleaning box (52) is connected with a second radiating pipe (24) in the heat exchange mechanism (2) through the second air outlet pipe (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021691553.3U CN212720930U (en) | 2020-08-13 | 2020-08-13 | Kiln hood waste gas recycle device for cement manufacture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021691553.3U CN212720930U (en) | 2020-08-13 | 2020-08-13 | Kiln hood waste gas recycle device for cement manufacture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212720930U true CN212720930U (en) | 2021-03-16 |
Family
ID=74918689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021691553.3U Expired - Fee Related CN212720930U (en) | 2020-08-13 | 2020-08-13 | Kiln hood waste gas recycle device for cement manufacture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212720930U (en) |
-
2020
- 2020-08-13 CN CN202021691553.3U patent/CN212720930U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210316 |
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| CF01 | Termination of patent right due to non-payment of annual fee |