CN211147325U

CN211147325U - Gas calcining furnace

Info

Publication number: CN211147325U
Application number: CN201922060293.3U
Authority: CN
Inventors: 陈亚琼; 翟道忠; 翟风肖; 陈玉顺
Original assignee: Jinan Hongao Machinery Parts Co ltd
Current assignee: Jinan Hongao Machinery Parts Co ltd
Priority date: 2019-11-23
Filing date: 2019-11-23
Publication date: 2020-07-31
Anticipated expiration: 2029-11-23

Abstract

The utility model relates to a gas calcining furnace, which comprises a gas pipe, a gas calcining furnace body communicated with the gas pipe and a transmission device, wherein the gas calcining furnace body comprises an outer shell, a combustion chamber, a combustion cavity communicated with the combustion chamber and a furnace cylinder which is connected with the transmission device and is positioned in the combustion cavity are formed in the outer shell; the transmission device drives the furnace barrel to rotate in the combustion cavity; the outer shell is uniformly provided with a plurality of heating spray heads which are positioned in the combustion chamber and communicated with the gas pipe; a ventilation and smoke exhaust device is arranged at the top of the gas calcining furnace body; the furnace barrel is provided with a gas dispersing hole communicated with the combustion cavity. The utility model discloses have and calcine the effect that is heated and evenly promotes raw and other materials and calcine the quality. Solves the problems of uneven heating of raw materials and reduction of the quality of calcined materials.

Description

Gas calcining furnace

Technical Field

The utility model relates to a forge burning furnace equipment field, especially relate to a gas and forge burning furnace.

Background

The gas calcining furnace adopts combustible gas such as gas, artificial gas, liquefied petroleum gas and the like as fuel, the combustion is sufficient, the heat efficiency is high, meanwhile, the combustion process is easy to control, and the pollution to the environment is less than that of solid and liquid fuel. After the carbon raw material is subjected to heat treatment at high temperature by the gas calcining furnace, most of moisture and volatile components in the carbon raw material are removed, the volume is reduced along with the removal of the carbon raw material, and the density, the strength and the conductivity are correspondingly improved. The purpose of calcination is to improve the properties of the raw material and to stabilize the volume of the raw material so that the formed green article will not crack during the subsequent calcination process.

Chinese patent publication No. CN207379280U discloses a natural gas calciner, which comprises a calciner and a gas device, wherein the calciner comprises a combustion chamber, a combustion chamber and a combustion zone which are arranged from inside to outside, an inlet is arranged in the middle of the top of the combustion chamber, an outlet is arranged in the middle of the bottom of the combustion chamber, a space is arranged between the top of the combustion chamber and the top of the combustion chamber, a top plate corresponding to the inlet of the combustion chamber is arranged at the top of the combustion chamber, and a bottom plate corresponding to the outlet of the combustion chamber is arranged at the bottom of the combustion chamber; the gas device comprises a gas main pipe and a plurality of gas branch pipes, the gas branch pipes are respectively communicated with the gas main pipe, the gas branch pipes are symmetrically arranged on two sides of the combustion area, valves are arranged on the gas branch pipes, and nozzles are arranged at the ends of the gas branch pipes.

Among the above-mentioned prior art scheme the bottom in combustion chamber is equipped with the bottom plate corresponding with the combustion chamber export, so only can the bottom be heated in the course of the work, can lead to raw and other materials to be heated inhomogeneous, reduce the problem of calcining the material quality.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a calcine burning furnace that is heated and evenly promotes raw and other materials and calcines quality is calcined to burning.

The method is realized by the following technical scheme: a gas calciner comprises a gas pipe, a gas calciner body communicated with the gas pipe and a transmission device, wherein the gas calciner body comprises an outer shell, a combustion chamber, a combustion cavity communicated with the combustion chamber and a furnace barrel which is connected with the transmission device and is positioned in the combustion cavity are formed in the outer shell; the transmission device drives the furnace barrel to rotate in the combustion cavity; the outer shell is provided with a plurality of heating spray heads which are positioned in the combustion chamber and communicated with the gas pipe; the main view projection of the heating nozzle uniformly surrounds the central axis of the furnace barrel; the heating spray heads are respectively positioned at the left side, the right side and the lower side of the outer wall of the outer shell; the heating spray heads are arranged at intervals along the length direction of the outer shell, and the interval distances between the adjacent heating spray heads are the same; a ventilation and smoke exhaust device is arranged at the top of the gas calcining furnace body; the ventilation and smoke exhaust device is communicated with the combustion chamber and the combustion cavity; the furnace barrel is provided with a gas dispersing hole communicated with the combustion cavity.

By adopting the technical scheme, the heating nozzles uniformly arranged in the combustion cavity spray the combusted natural gas to heat the combustion cavity, the heat generated by combustion is uniformly transferred into the combustion cavity, and then the heat energy of the combustion cavity is uniformly transferred to each area of the furnace barrel; meanwhile, the furnace cylinder is driven by the transmission device to rotate, so that the uniform heating of the internal calcining part and the quality of the calcining part are further ensured; the gas generated by the combustion of the natural gas and the flue gas generated by the calcination of the calcination part are extracted from the gas calciner body through the ventilation and smoke exhaust device, so that the calcination part and equipment are prevented from being damaged by the flue gas and the steam.

The utility model discloses further set up to: the combustion hollow chamber comprises a bottom combustion chamber, a left combustion chamber and a right combustion chamber; the bottom combustion chamber is communicated with the left combustion chamber and the right combustion chamber.

By adopting the technical scheme, the bottom combustion chamber, the left combustion chamber and the right combustion chamber are coated on the combustion cavity, so that each area of the combustion cavity is uniformly heated, each area of the furnace barrel is uniformly heated, and the quality of a calcined part is guaranteed; the bottom combustion chamber is communicated with the left combustion chamber and the right combustion chamber, so that the ventilation and smoke exhaust device can conveniently treat waste gas generated by the combustion empty chamber.

The utility model discloses further set up to: the front view projection of the combustion cavity is waist-shaped; the main view projection of the left combustion chamber and the right combustion chamber is fan-shaped.

Through adopting above-mentioned technical scheme, the fever cavity of waist type and fan-shaped left combustion chamber and right combustion chamber make heating shower nozzle heating area increase, are favorable to the heat to evenly pour into a stove section of thick bamboo, make each regional temperature of a stove section of thick bamboo even, ensure the quality of calcining.

The utility model discloses further set up to: the furnace cylinder is rotatably connected with a hollow shaft lever positioned in the furnace cylinder; the hollow shaft rod is uniformly provided with a plurality of clamping jaws used for clamping a calcining piece in the circumferential direction.

Through adopting above-mentioned technical scheme, the piece of calcining rotates at the stove section of thick bamboo around the hollow axostylus axostyle for it is even to calcine the piece and be heated, guarantees to calcine the quality of effect and calcination piece.

The utility model discloses further set up to: the outer shell is hermetically connected with a sealing door; the sealing door is provided with a driving motor connected with the hollow shaft lever; the output shaft of the driving motor is fixedly connected with the hollow shaft lever in an embedded manner.

Through adopting above-mentioned technical scheme, close the closed door and can make driving motor's output shaft and cavity axostylus axostyle gomphosis, provide the calcination piece pivoting calcination's on the mechanical drive cavity axostylus axostyle mode, calcination piece slew velocity is steerable, and the guarantee calcination piece is heated evenly and can practice thrift manpower and materials.

The utility model discloses further set up to: the composite fire-resistant layer is laid at the bottom of the outer shell and comprises a supporting brick layer abutted against the outer shell, a heat-insulating brick layer laid on the upper portion of the supporting brick layer and a fire-resistant brick layer laid on the upper heat-insulating brick layer.

By adopting the technical scheme, the supporting structure of the furnace barrel is abutted against the composite refractory layer, and a supporting brick layer with better strength and toughness is required to ensure that the furnace barrel can be stably supported; the heat conductivity coefficient of the insulating brick layer is low, so that the heat energy loss of gas combustion is reduced, and gas resources are saved; the firebrick layer prevents that the insulating brick layer is heated too high and leads to the structural damage to influence the performance of thermal insulation.

The utility model discloses further set up to: a composite heat insulation layer clinging to the inner side wall of the outer shell is arranged in the outer shell; the composite heat insulation layer comprises a pad lining plate tightly attached to the inner side wall of the outer shell and a heat insulation layer tightly attached to the pad lining plate.

By adopting the technical scheme, the composite heat insulation layer formed by the liner plate and the heat insulation layer effectively separates and blocks heat of the combustion chamber, reduces heat loss of heat generated by combustion of gas in the combustion chamber, saves gas resources, and ensures that the temperature of the outer shell is lower than 50 ℃ to ensure the safety of operators.

The utility model discloses further set up to: the thermal-insulated layer includes the lower thermal-insulated brick layer of hugging closely with filling up the welt, sets up the thermal-insulated brick layer on thermal-insulated brick layer upper portion down and is located thermal-insulated brick layer and the thermal-insulated filling layer between the thermal-insulated brick layer down.

By adopting the technical scheme, the lower heat-insulating brick layer and the upper heat-insulating brick layer are heat-insulated to form the heat-insulating filling layer, and because the filling cavity can absorb and store more heat energy and is positioned between the lower heat-insulating brick layer and the upper heat-insulating brick layer, the heat is not easy to dissipate; the heat insulation filling layer contains the filled heat insulation materials, so that the heat conductivity coefficient of the heat insulation filling layer is low, the heat dissipation loss is small, the utilization rate of gas resources is improved, and the purpose of energy conservation is achieved.

To sum up, the utility model has the advantages of it is following:

1. through the combustion chamber, the combustion cavity, the transmission device, the heating nozzle, the furnace barrel, the clamping jaw and the hollow shaft rod, the uniform heating of the calcined part is realized, and the quality of the calcined part is ensured.

2. Through the composite heat insulation layer and the heat insulation layer, the utilization rate of gas resources is improved, and the purpose of energy conservation is achieved.

Drawings

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

Fig. 2 is a cross-sectional view of the present invention.

Fig. 3 is a schematic structural view of a composite insulation layer.

Fig. 4 is a schematic structural view of the coupling.

In the figure, 1, a gas calciner body; 10. a gas pipe; 11. an outer housing; 12. a combustion plenum; 121. a bottom combustion chamber; 122. a left combustion chamber; 123. a right combustion chamber; 13. a combustion cavity; 131. air diffusing holes; 14. a furnace barrel; 2. a transmission device; 20. a hollow shaft; 201. a clamping jaw; 3. a ventilation and smoke exhaust device; 30. heating the spray head; 4. compounding a refractory layer; 41. supporting a brick layer; 42. a heat insulating brick layer; 43. a refractory brick layer; 5. a composite heat insulation layer; 51. a lining plate is padded; 52. a thermal insulation layer; 521. a lower insulating brick layer; 522. a thermally insulating fill layer; 523. an upper heat insulation brick layer; 6. a closing door; 61. a drive motor; 611. an output shaft; 612. a fitting block; 613. a coupling member; 614. a rubber sleeve; 7. a support device; 71. rolling a ring; 72. a support frame.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, for the utility model discloses a gas calcining furnace, including gas pipe 10, transmission 2 and the gas calcining furnace body 1 that communicates with gas pipe 10, gas calcining furnace body 1 includes shell body 11, is formed with combustion air chamber 12 in the shell body 11, with the combustion cavity 13 of combustion air chamber 12 intercommunication and connect in transmission 2 and rotate the chimney 14 of connecting in combustion cavity 13, chimney 14 is fixed inside gas calcining furnace body 1 through strutting arrangement 7; the supporting device 7 comprises a rolling ring 71 sleeved on the circumferential direction of the furnace cylinder 14 and a supporting frame 72 fixedly connected with the rolling ring 71. In order to ensure that the calcined part is heated uniformly and ensure the quality of the calcined part, the combustion chamber 12 comprises a bottom combustion chamber 121, a left combustion chamber 122 with a fan-shaped main view projection and a right combustion chamber 123 with a fan-shaped main view projection are connected, the bottom combustion chamber 121, a plurality of heating nozzles 30 communicated with the gas pipe 10 are uniformly arranged in the left combustion chamber 122 and the right combustion chamber 123, the main view projection of the heating nozzles 30 uniformly surrounds the central axis of the furnace barrel 14, and the heating nozzles 30 are respectively positioned in the bottom combustion chamber 121, the left combustion chamber 122 and the right combustion chamber 123. The heating spray heads 30 are arranged at intervals along the length direction of the outer shell 11, and the intervals between adjacent heating spray heads 30 are the same. Firebricks are piled up in the shell body 11 to form a combustion cavity 13, the main view projection of the combustion cavity 13 is waist-shaped, the heating coverage area of the heating nozzle 30 is increased by the structure, heat is favorably and uniformly transferred to the furnace barrel 14, the temperature of each area of the furnace barrel 14 is uniform, and the quality of a calcined part is guaranteed. The gas calcining furnace body 1 is provided with a ventilation and smoke exhaust device 3; the ventilation and smoke exhaust device 3 is communicated with the combustion chamber 12 and the combustion cavity 13, and waste gas generated by the combustion of natural gas and waste gas generated by the forged piece are exhausted to the outside under the action of the ventilation and smoke exhaust device 3. The furnace tube 14 is provided with air diffusing holes 131 communicated with the combustion cavity 13, and the bottom combustion chamber 121 is communicated with the left combustion chamber 122 and the right combustion chamber 123, so that the exhaust gas generated by the combustion of the gas and the flue gas generated in the calcining process of the calcining part are extracted and taken off from the gas calcining furnace body 1 by the ventilation and smoke exhaust device 3.

Referring to fig. 1 and 2, to further ensure the quality of the calcined component in the furnace shell, the furnace shell 14 is rotatably connected with a hollow shaft 20 located inside the furnace shell 14; the hollow shaft 20 is uniformly and fixedly connected with a plurality of clamping jaws 201 for clamping the calcining member in the circumferential direction, and in order to ensure the quality of the calcining member, the clamping jaws 201 are spirally arranged around the central axis of the hollow shaft 20. Driving manner of the hollow shaft 20: a sealing door 6 is hermetically hinged on the outer shell 11; the closing door 6 is fixedly connected with a driving motor 61 embedded with the hollow shaft rod 20, and an output shaft of the driving motor 61 is embedded and connected with the hollow shaft rod 20. Referring to fig. 4, the hollow shaft 20 is connected to the driving motor 61: an output shaft 611 of the driving motor 61 is fixedly connected with an embedded block 612 towards the circumferential direction of the rod end of the furnace barrel 14; the furnace tube 14 is rotatably connected with a joint 613 having one end fixedly engaged with the engaging block 612 and the other end fixedly engaged with the hollow shaft 20, and the engaging block 612 is sleeved with a rubber sleeve 614 to tightly connect the output shaft 611 with the joint 613. The driving motor 61 drives the hollow shaft rod 20 to rotate, and drives the calcining part to rotate around the central axis of the hollow shaft rod 20 in the furnace cylinder 14, so that the calcining part is heated uniformly, and the calcining effect and the calcining part quality are ensured.

Referring to fig. 1 and 2, in order to reduce the heat loss of heat energy generated by combustion of gas, a composite refractory layer 4 is laid at the bottom of the outer shell 11, the composite refractory layer 4 comprises a support brick layer 41 abutted against the outer shell 11, and a heat preservation brick layer 42 is laid at the upper part of the support brick layer 41; the upper part of the insulating brick layer 42 is paved with a refractory brick layer 43. The supporting structure of the furnace tube 14 is abutted against the composite refractory layer 4, and a supporting brick layer 41 with good strength and toughness is required to ensure that the furnace tube 14 can be stably supported. The heat-insulating brick layer 42 has low heat conductivity coefficient, can reduce the heat energy loss of gas combustion and save gas resources. The refractory brick layer 43 prevents the insulating brick layer 42 from being damaged by the structure due to too high heat so as to influence the performance of the insulating performance. With reference to fig. 3, a composite heat insulation layer 5 closely attached to the inner side wall of the outer shell 11 is arranged in the outer shell 11; the composite heat insulating layer 5 includes a spacer 51 closely attached to the inner side wall of the outer case 11 and a heat insulating layer 52 closely attached to the spacer 51. The composite heat insulation layer 5 formed by the cushion lining plate 51 and the heat insulation layer 52 effectively separates heat of the combustion chamber, reduces heat loss of heat generated by combustion of gas in the combustion chamber, saves gas resources, and ensures that the temperature of the outer shell is lower than 50 ℃ to ensure the safety of operators. The insulation layer 52 includes a lower insulation brick layer 521 closely attached to the mat-backing 51, an upper insulation brick layer 523 disposed on an upper portion of the lower insulation brick layer 521, and an insulation filler layer 522 between the lower insulation brick layer 521 and the upper insulation brick layer 523. The lower heat insulation brick layer 521 and the upper heat insulation brick layer 523 are preferably made of refractory bricks, the lower heat insulation brick layer 521 and the upper heat insulation brick layer 523 are heat-insulated to form a heat insulation filling layer 522, and the heat insulation filling layer 522 has a filling cavity which can absorb and store more heat energy and is difficult to dissipate heat and keep heat for a longer time; the heat insulation filling layer 522 contains the filled foamed polyurethane heat insulation material, so that the heat conductivity coefficient of the heat insulation filling layer 522 is low, the heat dissipation loss is small, the utilization rate of gas resources is improved, and the purpose of energy conservation is achieved.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a gas calciner, includes gas pipe (10), with gas calciner body (1) and transmission (2) of gas pipe (10) intercommunication, its characterized in that: the gas calcining furnace body (1) comprises an outer shell (11), wherein a combustion chamber (12), a combustion cavity (13) communicated with the combustion chamber (12) and a furnace barrel (14) which is connected with the transmission device (2) and is positioned in the combustion cavity (13) are formed in the outer shell (11); the transmission device (2) drives the furnace barrel (14) to rotate in the combustion cavity (13); a plurality of heating nozzles (30) which are positioned in the combustion empty chamber (12) and communicated with the gas pipe (10) are arranged in the outer shell (11); the main view projection of the heating spray head (30) uniformly surrounds the central axis of the furnace barrel (14); the heating spray heads (30) are respectively positioned at the left side, the right side and the lower side of the outer wall of the outer shell (11); the heating spray heads (30) are arranged at intervals along the length direction of the outer shell (11), and the interval distances between the adjacent heating spray heads (30) are the same; a ventilation and smoke exhaust device (3) is arranged at the top of the gas calcining furnace body (1); the ventilation and smoke exhaust device (3) is communicated with the combustion chamber (12) and the combustion cavity (13); the furnace barrel (14) is provided with a gas diffusion hole (131) communicated with the combustion cavity (13).

2. A gas calciner according to claim 1 characterised in that: the combustion chamber (12) comprises a bottom combustion chamber (121), a left combustion chamber (122) and a right combustion chamber (123); the bottom combustion chamber (121) is in communication with both the left combustion chamber (122) and the right combustion chamber (123).

3. A gas calciner according to claim 2, characterised in that: the front projection of the combustion cavity (13) is waist-shaped; the main view projection of the left combustion chamber (122) and the right combustion chamber (123) is in a fan shape.

4. A gas calciner according to claim 1 characterised in that: the furnace cylinder (14) is rotatably connected with a hollow shaft lever (20) positioned in the furnace cylinder (14); the hollow shaft rod (20) is uniformly provided with a plurality of clamping jaws (201) for clamping a calcining piece in the circumferential direction.

5. A gas calciner according to claim 1 characterised in that: a sealing door (6) is hermetically connected to the outer shell (11); the closing door (6) is provided with a driving motor (61) connected with the hollow shaft lever (20); an output shaft (611) of the drive motor (61) is fixedly connected with the hollow shaft lever (20) in a fitting manner.

6. A gas calciner according to claim 1 characterised in that: the composite fireproof layer (4) is laid at the bottom of the outer shell (11), and the composite fireproof layer (4) comprises a supporting brick layer (41) abutted to the outer shell (11), an insulating brick layer (42) laid on the upper portion of the supporting brick layer (41) and a fireproof brick layer (43) laid on the upper insulating brick layer (42).

7. A gas calciner according to claim 1 characterised in that: a composite heat insulation layer (5) which is tightly attached to the inner side wall of the outer shell (11) is arranged in the outer shell (11); the composite heat insulation layer (5) comprises a pad lining plate (51) closely attached to the inner side wall of the outer shell (11) and a heat insulation layer (52) closely attached to the pad lining plate (51).

8. A gas calciner according to claim 7, characterized in that: the heat insulation layer (52) comprises a lower heat insulation brick layer (521) closely attached to the pad lining plate (51), an upper heat insulation brick layer (523) arranged on the upper portion of the lower heat insulation brick layer (521), and a heat insulation filling layer (522) located between the lower heat insulation brick layer (521) and the upper heat insulation brick layer (523).