CN217714937U

CN217714937U - Anti-blocking hot plate furnace

Info

Publication number: CN217714937U
Application number: CN202122371182.1U
Authority: CN
Inventors: 泥卫东; 马超伟; 刘方; 张春辉; 杨丽; 程鹏
Original assignee: Sino Environment Protection Engineering Technology Co ltd; China University of Mining and Technology CUMT
Current assignee: Sino Environment Protection Engineering Technology Co ltd; China University of Mining and Technology CUMT
Priority date: 2021-09-28
Filing date: 2021-09-28
Publication date: 2022-11-01
Anticipated expiration: 2031-09-28

Abstract

The application relates to an anti-blocking hot plate furnace, which comprises a furnace shell, a furnace plate arranged in the furnace shell, a slag discharge fan and a slag discharge pipe connected to an air outlet of the slag discharge fan; the furnace shell is characterized in that a blanking pipe is connected and communicated with the bottom of the furnace shell, one end, far away from the furnace shell, of the blanking pipe is connected and communicated with a slag discharge pipe, and an air locking blanking device is installed on the blanking pipe. This application has that stove dish running resistance is little, the difficult dead effect of card.

Description

Anti-blocking hot plate furnace

Technical Field

The application relates to the field of cement kiln is dealt with hazardous materials in coordination, especially relates to a dead hot plate stove of anti-sticking.

Background

The cement kiln is used for cooperatively treating a large number of pollutants generated by urban development such as domestic garbage, sludge, hazardous waste and the like, and is a emerging pollutant treatment means at present. The hot plate furnace is a waste combustion device which is directly connected with a cone at the lower part of the decomposing furnace and is provided with a slow rotating furnace plate, is positioned between the tertiary air pipe and the decomposing furnace and is in an on-line relation with the cement kiln.

The hot plate furnace consists of a base, a furnace shell arranged on the base, a furnace plate arranged in the furnace shell and a driving device arranged below the furnace shell and used for driving the furnace plate to rotate. In the use process of the hot plate furnace, part of ash powder after incineration and flying sand materials brought by tertiary air of the cement kiln are subjected to cyclone sedimentation at the inner edge of a hearth, so that excessive materials are accumulated below a furnace plate; if the hot plate furnace is stopped due to short fault in the later period and the hot plate furnace is difficult to open due to overlarge instant torque when the hot plate furnace is started again, normal cooperative treatment is influenced.

SUMMERY OF THE UTILITY MODEL

In order to reduce the running resistance of the furnace plate, the application provides an anti-blocking hot plate furnace.

The application provides a dead hot plate stove of anti-sticking adopts following technical scheme:

an anti-blocking hot-plate furnace comprises a furnace shell, a furnace plate arranged in the furnace shell, a slag discharge fan and a slag discharge pipe connected to an air outlet of the slag discharge fan; the furnace is characterized in that a blanking pipe is connected and communicated with the bottom of the furnace shell, one end, far away from the furnace shell, of the blanking pipe is connected and communicated with a slag discharge pipe, and an air-locking feeder is mounted on the blanking pipe.

By adopting the technical scheme, the slag discharge fan and the air locking blanking device can be opened periodically, the slag accumulated at the bottom of the furnace shell is discharged out of the furnace shell, the running resistance of the furnace plate is reduced, and the furnace plate is prevented from being blocked. When the slag is discharged, the slag discharging fan is started in advance, and the air locking blanking device is started after the slag discharging fan runs stably so as to prevent the slag from falling to block the slag discharging pipe.

Optionally, the blanking pipes are arranged in a plurality, and the blanking pipes are arranged around the outer side of the bottom of the furnace shell at intervals along the circumferential direction.

By adopting the technical scheme, the slag accumulated at the bottom of the furnace shell is discharged out of the furnace shell.

Optionally, a collecting hopper is connected between the furnace shell and the blanking pipe.

By adopting the technical scheme, the material slag is favorably collected and discharged.

Optionally, the furnace shell comprises a central column and an outer shell connected to the periphery of the central column, the furnace plate is located in the outer shell and is in rotating fit with the central column, a hearth is formed among the central column, the outer shell and the furnace plate, and a discharge hole is formed in one side of the outer shell;

the upper side of the furnace plate close to the central column is formed into an annular slope surface which inclines upwards;

the furnace is internally provided with a central scraping plate, the central scraping plate is arranged on the side wall of the part, located in the furnace, of the central column, the lower side surface of the central scraping plate is formed into an inclined surface matched with the annular slope surface, and a gap of 5-20mm is reserved between the central scraping plate and the annular slope surface.

By adopting the technical scheme, the material slag is not easy to enter a gap between the furnace plate and the central scraping plate, the running resistance of the furnace plate is reduced, and the furnace plate is prevented from being blocked.

Optionally, the furnace plate comprises a cylinder sleeved outside the central column and a ring fixedly connected outside the cylinder, a plurality of prefabricated parts are arranged on the ring around the periphery of the cylinder, and the upper end surface of each prefabricated part is an inclined surface inclined upwards; and a fireproof pouring piece is arranged between the upper part of the circular ring, the prefabricated part and the outer edge of the circular ring.

By adopting the technical scheme, the upper end surfaces of the prefabricated parts are combined to form the annular slope surface, so that the manufacturing difficulty of the furnace plate is reduced.

Optionally, the stove plate still includes a plurality of back irons, back iron is closely arranged on the ring periphery wall and can dismantle with the ring and be connected around ring circumferencial direction.

Through adopting above-mentioned technical scheme, the back iron can protect fire-resistant pouring piece and ring as the consumptive material, improves the life of fire-resistant pouring piece and ring. The back iron and the circular ring are detachably connected, so that the maintenance and the replacement are convenient.

Optionally, a short wall is installed on the inner wall of the shell, the short wall is located above the back iron, and a gap of 10-30mm is reserved between the short wall and the back iron.

By adopting the technical scheme, the short wall plays a role in heat insulation and heat preservation and protects the shell.

Optionally, the central scraping plate includes a support fixedly connected to the central column and a plurality of guard blocks installed on one side of the support opposite to the central column.

Through adopting above-mentioned technical scheme, when protection piece degree of wear is great, can directly change protection piece, avoided the center to scrape the whole replacement of flitch, greatly reduced the maintenance cost of equipment.

Optionally, a plurality of lifting lugs are fixedly connected to the upper side of the circular ring.

By adopting the technical scheme, the furnace plate is convenient to hoist before a fireproof pouring piece is formed.

Optionally, the top of the furnace shell is provided with a tertiary air inlet and a feeding port.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the slag discharge fan and the air locking feeder can be opened periodically to discharge the slag accumulated at the bottom of the furnace shell out of the furnace shell, so that the running resistance of the furnace plate is reduced, and the furnace plate is prevented from being stuck;

2. the slag is difficult to get into the gap between the furnace plate and the central scraping plate, the running resistance of the furnace plate is reduced, and the furnace plate is prevented from being stuck.

Drawings

Fig. 1 is a schematic view of the overall structure of an anti-seize hot-plate furnace according to an embodiment of the present application.

Fig. 2 is a cross-sectional view of an anti-seize hot plate furnace according to an embodiment of the present application.

Fig. 3 is a schematic view showing the structure of the center scraper plate.

Fig. 4 is an exploded view of the oven tray.

Description of the reference numerals: 11. an outer base; 12. an inner base; 2. a furnace shell; 21. a central column; 22. a furnace roof; 23. an outer furnace wall; 231. a low wall; 24. furnace wall; 25. a furnace bottom wall; 26. a discharge plate; 27. a cover plate; 28. a central scraping plate; 281. a support member; 282. a protection block; 29. a discharging scraper plate; 20. a sealing cylinder; 201. a discharge port; 202. a tertiary air inlet; 203. a feeding port; 3. a furnace plate; 31. a cylinder; 32. a circular ring; 33. protecting iron; 34. a prefabricated member; 35. refractory casting; 36. sealing the sheet; 37. lifting lugs; 4. a drive device; 41. a flat bearing; 42. a toothed ring; 43. a drive motor; 44. a gear; 45. connecting ribs; 51. a slag discharge fan; 52. a slag discharge pipe; 53. a collection hopper; 54. a blanking pipe; 55. locking wind blanking device.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses anti-sticking dies hot plate stove.

Referring to fig. 1 and 2, the anti-sticking dead heat plate furnace includes the base, installs stove outer covering 2 on the base, sets up stove dish 3 in stove outer covering 2, sets up and is used for driving stove dish 3 pivoted drive arrangement 4 and connect the row's sediment device in stove outer covering 2 bottom in stove outer covering 2 below, and the base includes outer base 11 and inner base 12, and wherein, outer base 11 is used for supporting stove outer covering 2, and inner base 12 is used for supporting stove dish 3.

Referring to fig. 1 and 2, the furnace shell 2 includes a central column 21 and a housing connected to the periphery of the central column 21, the furnace plate 3 is located in the housing and is in rotating fit with the central column 21, and a hearth is formed among the central column 21, the housing and the furnace plate 3. Specifically, the outer shell comprises a roughly fan-shaped top wall 22 fixedly connected to the upper end of a central column 21, an outer furnace wall 23 fixedly connected to the outer periphery side of the top wall 22, a cylindrical 31-shaped furnace enclosure 24 fixedly connected to the lower end of the outer furnace wall 23, and an annular furnace bottom wall 25 fixedly connected to the lower end of the furnace enclosure 24, wherein a certain interval is reserved between the furnace bottom wall 25 and the central column 21, and the furnace bottom wall 25 is fixed on the outer base 11; one part of the inner side wall of the furnace top wall 22 is fixedly connected with the central column 21, the other part of the inner side wall is fixedly connected with a vertical discharging plate 26, one side of the discharging plate 26, which is close to the central column 21, is fixedly connected with the central column 21, the outer side of the discharging plate 26 is fixedly connected with a cover plate 27 in a horizontal posture, and the cover plate 27 is fixedly connected with the upper edge of the furnace enclosure 24.

Referring to fig. 1, a discharge port 201 is arranged between one end of the outer wall 23 of the furnace close to the discharge plate 26 and the discharge plate 26; the end of the outer furnace wall 23 far away from the discharging plate 26 is provided with a tertiary air inlet 202, the top furnace wall 22 near the tertiary air inlet 202 is provided with a plurality of feeding ports 203, the number of the feeding ports 203 can be adjusted according to actual requirements, in the embodiment, three feeding ports 203 are provided, and the three feeding ports 203 are divided into a solid waste feeding port 203, a preheated raw material inlet and an emergency cold raw material inlet according to the purposes.

Referring to fig. 1 and 2, a central scraper plate 28 and a discharge scraper 29 are arranged in the hearth, the discharge scraper 29 being mounted on the discharge plate 26, the discharge scraper 29 being adapted to scrape material off the furnace plate 3 and to guide material out of the hearth through a discharge opening 201. Referring to fig. 2 and 3, the central scraping plate 28 is installed on the side wall of the central column 21 located in the furnace, and the central scraping plate 28 mainly protects the central column 21 and reduces the abrasion of the central column 21 caused by the material; the center scraping plate 28 includes a support 281 fixedly connected to the center post 21 and a plurality of guard blocks 282 mounted on a side of the support 281 facing away from the center post 21. When the protection block 282 has a large wear degree, the protection block 282 can be directly replaced, so that the integral replacement of the central scraping plate 28 is avoided, and the maintenance cost of the equipment is greatly reduced.

Referring to fig. 2, a short wall 231 is installed on the inner wall of the outer wall 23, the short wall 231 is located above the furnace plate 3, and the short wall 231 plays a role in heat insulation on one hand and protection on the other hand for the outer wall 23, so that abrasion of materials on the outer wall 23 is reduced.

Referring to fig. 2 and 4, the furnace plate 3 includes a cylinder 31 sleeved outside the central column 21, a ring 32 fixedly connected outside the cylinder 31, and a plurality of back irons 33 closely arranged on the outer peripheral wall of the ring 32 along the circumferential direction of the ring 32 and detachably connected with the ring 32; the back iron 33 is located below the short wall 231, and a 10-30mm gap is reserved between the back iron 33 and the short wall 231, in this embodiment, 20mm is taken as an example, and the back iron 33 can be used as a consumable material to protect the refractory pouring piece and the circular ring 32, so that the service life of the refractory pouring piece and the circular ring 32 is prolonged. A plurality of lifting lugs 37 are welded on the upper side of the circular ring 32, so that people can conveniently lift the circular ring 32 when assembling the hot plate furnace.

A plurality of prefabricated parts 34 are arranged on the circular ring 32 around the cylinder 31, the upper end surfaces of the prefabricated parts 34 are inclined surfaces which incline upwards, the upper end surfaces of all the prefabricated parts 34 are combined to form an inclined annular slope surface, and one side of the annular slope surface, which is close to the cylinder 31, is higher than one side of the annular slope surface, which is far away from the cylinder 31; and forming a refractory pouring piece by pouring refractory and wear-resistant materials on the circular ring 32 and between the prefabricated part 34 and the back iron 33. It should be noted that the lower side surface of the central scraping plate 28 is formed into an inclined surface adapted to the annular slope surface, and a gap of 5-20mm, for example 10mm, is left between the central scraping plate 28 and the annular slope surface; the arrangement of the annular slope surface enables the slag not to easily enter a gap between the furnace disc 3 and the central scraping plate 28, reduces the running resistance of the furnace disc 3 and avoids the furnace disc 3 from being blocked.

Referring to fig. 2, a sealing structure for reducing air leakage is arranged on the furnace shell 2 and the furnace plate 3, and the sealing structure comprises a cylindrical 31-shaped sealing cylinder 20 fixedly connected to the inner circumference of the furnace bottom wall 25 and a plurality of sealing pieces 36 arranged on the inner side of the sealing cylinder 20 along the circumferential direction of the sealing cylinder 20 and fixedly connected with the furnace plate 3; the sealing plate 36 is a resilient member that abuts against the inside wall of the sealing cylinder 20.

Referring to fig. 2, the driving device 4 includes a flat bearing 41 installed on the upper side of the inner base 12, a gear ring 42 fixedly connected to the upper side of the flat bearing 41 and coaxial with the furnace plate 3, a driving motor 43 disposed in the inner base 12, and a gear 44 connected to an output shaft of the driving motor 43, wherein the gear 44 is engaged with the gear ring 42, and a plurality of connecting ribs 45 are connected between the gear ring 42 and the furnace plate 3. When the furnace disc is in work, the driving motor 43 drives the gear 44 to rotate, and the gear 44 drives the gear ring 42 and the furnace disc 3 to rotate; the staff can adjust the rotational speed of driving motor 43 according to operating condition to the rotational speed of regulation stone or metal plate for standing a stove on as a precaution against fire 3.

Referring to fig. 1 and 2, the slag discharging device comprises a slag discharging fan 51 and a slag discharging pipe 52 connected to an air outlet of the slag discharging fan 51, a plurality of collecting hoppers 53 communicated with the inside of the furnace shell 2 are installed on the lower side of the furnace bottom wall 25, the collecting hoppers 53 are arranged at intervals on the outer edge of the furnace bottom wall 25 along the circumferential direction of the furnace shell 2, a blanking pipe 54 is connected and communicated between the collecting hoppers 53 and the slag discharging pipe 52, and an air locking blanking device 55 is installed on the blanking pipe 54.

The implementation principle of the anti-sticking hot plate furnace in the embodiment of the application is as follows: when waste is treated, tertiary air is introduced into the tertiary air inlet 202, materials enter a hearth from the feeding port 203 and are ignited by the tertiary air, the driving device 4 drives the furnace plate 3 to rotate, and the materials move along with the furnace plate 3; when the material moves to the discharge port 201, the material leaves the hot plate furnace through the discharge port 201 under the action of the discharge scraper 29.

In the use process of the hot-plate furnace, the slag discharge fan 51 and the air-locking blanking device 55 are required to be opened periodically, the slag accumulated at the bottom of the furnace shell 2 is discharged out of the furnace shell 2, the running resistance of the furnace plate 3 is reduced, and the furnace plate 3 is prevented from being blocked; when discharging slag, the slag discharge fan 51 should be started in advance, and the air-locking blanking device 55 should be started after the operation of the slag discharge fan 51 is stable, so as to prevent the slag from falling and blocking the slag discharge pipe 52.

The above are preferred embodiments of the present application, and the scope of protection of the present application is not limited thereto, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides an anti-sticking dies hot plate stove, includes stove outer covering (2) and sets up stone or metal plate for standing a stove on as a precaution against fire (3) in stove outer covering (2), characterized by: the device also comprises a slag discharge fan (51) and a slag discharge pipe (52) connected with an air outlet of the slag discharge fan (51); the furnace shell is characterized in that a blanking pipe (54) is connected and communicated with the bottom of the furnace shell (2), one end, far away from the furnace shell (2), of the blanking pipe (54) is connected and communicated with a slag discharge pipe (52), and an air locking blanking device (55) is installed on the blanking pipe (54).

2. The anti-seize hot plate furnace of claim 1, wherein: the blanking pipes (54) are arranged in a plurality, and the blanking pipes (54) are arranged around the bottom of the furnace shell (2) at intervals along the circumferential direction.

3. The anti-seize hot plate furnace of claim 1, wherein: and a collecting hopper (53) is connected between the furnace shell (2) and the blanking pipe (54).

4. The anti-seize hot plate furnace of claim 1, wherein: the furnace shell (2) comprises a central column (21) and an outer shell connected to the periphery of the central column (21), the furnace disc (3) is positioned in the outer shell and is in running fit with the central column (21), a hearth is formed among the central column (21), the outer shell and the furnace disc (3), and a discharge hole (201) is formed in one side of the outer shell;

the upper side of the furnace plate (3) close to the central column (21) is formed into an annular slope surface which inclines upwards;

the furnace is internally provided with a central scraping plate (28), the central scraping plate (28) is arranged on the side wall of the central column (21) positioned in the furnace, the lower side surface of the central scraping plate (28) is formed into an inclined surface matched with the annular slope surface, and a gap of 5-20mm is reserved between the central scraping plate (28) and the annular slope surface.

5. The anti-seize hot plate furnace of claim 4, wherein: the furnace plate (3) comprises a cylinder (31) sleeved outside the central column (21) and a ring (32) fixedly connected outside the cylinder (31), a plurality of prefabricated parts (34) are arranged on the ring (32) around the outer periphery of the cylinder (31), and the upper end surfaces of the prefabricated parts (34) are inclined planes inclining upwards; and refractory pouring pieces are arranged on the circular ring (32) and between the prefabricated part (34) and the outer edge of the circular ring (32).

6. The anti-seize hot plate furnace of claim 5, wherein: the stove plate (3) further comprises a plurality of back iron pieces (33), wherein the back iron pieces (33) are tightly arranged on the outer circumferential wall of the circular ring (32) in the circumferential direction of the circular ring (32) and are detachably connected with the circular ring (32).

7. The anti-seize hot plate furnace of claim 6, wherein: the shell inner wall is installed low wall (231), low wall (231) is located above back iron (33), and a 10-30mm gap is left between low wall (231) and back iron (33).

8. The anti-seize hot plate furnace of claim 4, wherein: the central scraping plate (28) comprises a support (281) fixedly connected to the central column (21) and a plurality of protective blocks (282) installed on one side, opposite to the central column (21), of the support (281).

9. The anti-seize hot plate furnace of claim 5, wherein: a plurality of lifting lugs (37) are fixedly connected to the upper side of the circular ring (32).

10. The anti-seize hot plate furnace of claim 1, wherein: the top of the furnace shell (2) is provided with a tertiary air inlet (202) and a feeding port (203).