CN215832437U

CN215832437U - Natural gas kiln

Info

Publication number: CN215832437U
Application number: CN202122102710.3U
Authority: CN
Inventors: 虞畅; 邱新方; 王嘉; 王建中; 戚建晨; 唐文节
Original assignee: Huzhou Zhebao Calcium Polytron Technology Co ltd
Current assignee: Huzhou Zhebao Calcium Polytron Technology Co ltd
Priority date: 2021-09-02
Filing date: 2021-09-02
Publication date: 2022-02-15
Anticipated expiration: 2031-09-02

Abstract

The utility model provides a natural gas kiln which comprises a kiln body, wherein a bluestone feeding belt conveyor, a bluestone storage bin, an electronic belt scale, a primary air locking device and a secondary air locking device are sequentially arranged above the kiln body from top to bottom, a first platform, a second platform, a third platform and a fourth platform are sequentially arranged in the kiln body from top to bottom, a plurality of burners are arranged between the second platform and the third platform on the kiln body, the burners are arranged close to the third platform, air inlets of the burners are communicated with an air inlet channel, the air inlet channel is obliquely arranged towards the kiln body, and an air outlet of each burner is communicated with the inner cavity of the kiln body. The utility model has the beneficial effects that: the water gas is changed into natural gas, so that the environmental pollution is reduced; the gas inlet channel of the burner is obliquely arranged towards the furnace body, so that the flow rate of natural gas can be reduced, and the processing quality is improved.

Description

Natural gas kiln

Technical Field

The utility model belongs to the technical field of kiln equipment, and particularly relates to a natural gas kiln.

Background

The kiln is a furnace for firing ceramic ware and sculpture or fusing enamel on the surface of metal ware, is generally built by bricks and stones, is a device for firing products built by refractory materials, and is a necessary facility in ceramic molding. The coal-fired kiln in the prior art has the phenomenon that a large amount of pollutants such as sulfur dioxide are generated in the combustion process, and when the natural gas kiln is adopted, the natural gas entering into the combustor is large in entering amount, so that the flow rate of the natural gas cannot be reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a natural gas kiln, which effectively prevents environmental pollution, reduces the flow rate of natural gas, improves the lime processing speed and quality, and is particularly suitable for being used in the process of burning green stones.

The technical scheme of the utility model is as follows: a natural gas kiln comprises a kiln body, a bluestone feeding belt conveyor, a bluestone storage bin, an electronic belt scale, a primary air locking device and a secondary air locking device are sequentially arranged above the kiln body from top to bottom, a first outlet of the bluestone feeding belt conveyor is arranged at a first inlet at the upper end of the bluestone storage bin, the electronic belt scale is arranged below a second outlet at the lower end of the bluestone storage bin, a third outlet at the left end of the electronic belt scale is arranged at a second inlet at the upper end of the primary air locking device and is connected with a second inlet at the upper end of the primary air locking device, a fourth outlet at the lower end of the primary air locking device is connected with a third inlet at the upper end of the secondary air locking device, a fifth outlet at the lower end of the secondary air locking device penetrates through a round hole in the top wall of the kiln body and is arranged in the kiln body, a flue gas leading-in pipe communicated with the inner cavity of the kiln body is arranged at the upper end of the kiln body, a mounting hole is arranged on the front wall of the upper end of the kiln body, a top observation door is arranged in the mounting hole, the furnace body is internally provided with a plurality of thermocouples at equal intervals, a first platform, a second platform, a third platform and a fourth platform are sequentially arranged in the furnace body from top to bottom, a plurality of combustors are arranged between the second platform and the third platform and are arranged close to the third platform, air inlets of the combustors are communicated with air inlet channels which are obliquely arranged towards the furnace body, air outlets of the combustors are communicated with the inner cavity of the furnace body, bottom ignition doors are arranged on the front wall of the furnace body between the third platform and the fourth platform and are close to each combustor, the lower end of the bottom wall of the furnace body is erected on a kiln foundation through connection, blast caps communicated with the inside of the furnace body are respectively arranged on the front wall and the rear wall of the bottom end of the furnace body, and the opening of the furnace body is communicated with a discharge cone, the kiln furnace is characterized in that a disc ash discharging machine is arranged below an outlet at the lower end of the discharging cone, a star-shaped ash discharging machine is arranged below the outlet of the disc ash discharging machine, an ash discharging belt machine is arranged below the outlet of the star-shaped ash discharging machine, the ash discharging belt machine and the star-shaped ash discharging machine are arranged in a kiln foundation, and the furnace body comprises high-alumina bricks, clay bricks, fillers and light bricks which are sequentially arranged from inside to outside.

Preferably, the bluestone silo is 80 cubic bluestone silo.

Preferably, the bluestone silo is arranged on the top wall of the furnace body through a supporting frame.

Preferably, the outer end of each platform extends from the inner wall of the furnace.

Preferably, the disc ash hoist is fixed on the connecting frame.

The utility model has the advantages and positive effects that: by adopting the technical scheme, the water gas is changed into natural gas, so that the environmental pollution is reduced; the gas inlet channel of the burner is obliquely arranged towards the furnace body, so that the flow rate of natural gas can be reduced, and the processing quality is improved.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a partially enlarged view of fig. 1 at a.

In the figure:

1. bluestone feeding belt conveyor 2, bluestone bunker 3 and electronic belt scale

4. Primary air locking device 5, secondary air locking device 6 and lower flue gas guiding pipe

7. Top observation door 8, furnace body 9, thermocouple

10. Second platform 11, high-alumina brick 12, clay brick

13. Filling material 14, light brick 15 and burner

16. Bottom ignition door 17, blast cap 18 and discharge cone

19. Disc ash hoist 20, star ash hoist 21, ash belt conveyer

22. Kiln foundation 23, connecting frame 24 and air inlet channel

Detailed Description

As shown in figures 1 and 2, the technical scheme of the utility model is a natural gas kiln which comprises a furnace body 8, a bluestone feeding belt conveyor 1, a bluestone bin 2, an electronic belt scale 3, a primary air locking device 4 and a secondary air locking device 5 are sequentially arranged above the furnace body 8 from top to bottom, a first outlet of the bluestone feeding belt conveyor 1 is arranged at a first inlet at the upper end of the bluestone bin 2, the electronic belt scale 3 is arranged below a second outlet at the lower end of the bluestone bin 2, a third outlet at the left end of the electronic belt scale 3 is arranged at a second inlet at the upper end of the primary air locking device and is connected with a fourth outlet at the lower end of the primary air locking device 4, a third inlet at the upper end of the secondary air locking device 5, a fifth outlet at the lower end of the secondary air locking device 5 penetrates through a round hole on the top wall of the furnace body 1 and is arranged in the furnace body 1, a flue gas introducing pipe 6 communicated with an inner cavity of the furnace body 8 is arranged at the upper end of the furnace body, the furnace body is characterized in that a mounting hole is formed in the front wall of the upper end of the furnace body, a top observation door 7 is arranged in the mounting hole, a plurality of thermocouples 9 are arranged on the inner wall of the furnace body 8 at equal intervals, a first platform, a second platform 10, a third platform and a fourth platform are sequentially arranged in the furnace body 8 from top to bottom, a plurality of burners are arranged on the furnace body 8 between the second platform 10 and the third platform, the burners are arranged near the third platform, an air inlet of each burner is communicated with an air inlet channel 24, the air inlet channels 24 are obliquely arranged towards the furnace body 8, a burner nozzle of each burner 15 is communicated with the inner cavity of the furnace body 8, a bottom ignition door 16 is arranged on the front wall of the furnace body 8 between the third platform and the fourth platform, the bottom ignition door 16 is arranged near each burner, the lower end of the bottom wall of the furnace body 8 is arranged on a kiln foundation 22 through a connecting frame 23, the furnace is characterized in that blast caps 17 communicated with the interior of the furnace body 8 are respectively arranged on the front wall and the rear wall of the bottom end of the furnace body 8, an opening on the bottom wall of the furnace body 8 is communicated with an unloading cone 18, a disc ash discharging machine 19 is arranged below an outlet at the lower end of the unloading cone 18, a star-shaped ash discharging machine 20 is arranged below an outlet of the disc ash discharging machine 19, an ash discharging belt conveyor 21 is arranged below an outlet of the star-shaped ash discharging machine 20, the ash discharging belt conveyor 21 and the star-shaped ash discharging machine 20 are arranged in a kiln foundation, and the furnace body 8 comprises high-alumina bricks 11, clay bricks 12, fillers 13 and light bricks 14 which are sequentially arranged from inside to outside.

In this embodiment, the bluestone silo 2 is an 80 cubic bluestone silo.

In this embodiment, the bluestone silo 2 is arranged on the top wall of the furnace body 8 through a support frame.

In this embodiment, the outer end of each platform extends from the inner wall of the furnace body 8.

In this embodiment, the disk ash hoist 19 is fixed to the connecting frame 23.

The working process and principle of the example are as follows: the burner 15 is opened, the bluestone is conveyed into the bluestone bin 2 from the bluestone feeding belt conveyor 1, then enters the furnace body 8 along the electronic belt scale 3, the primary air locking device 4 and the secondary air locking device 5 in sequence, and passes through the first platform, the second platform 10, the third platform and the fourth platform in sequence in the furnace body, and finally, the finished lime passes through the discharging cone 18, the disc ash discharging machine 19 and the star ash discharging machine 20 in sequence, and is finally conveyed out through the ash discharging belt conveyor 21.

The operation requirements of the kiln are as follows:

1. the design of the kiln foundation is completed by a user implementing a civil engineering design unit according to local geological conditions.

2. The charging of the kiln is additionally designed according to the existing conditions of users.

3. Setting requirements for temperature detection points: 1 burner outlet of each burner is used for detecting the combustion temperature; 3 positions (which are uniformly distributed along the circumferential direction of the shell) which are about 100mm away from the inner wall of the refractory masonry at the elevation of 6 meters are used for detecting the reference temperature of the discharged ash; the exhaust ports of the smoke exhaust pipes are 1 for detecting exhaust temperature.

4. Before combustion and ignition, the kiln cavity must be ventilated for more than 5 minutes to ensure the replacement of the gas in the kiln.

5. The combustion operation of the natural gas meets the use requirement of the combustor.

While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention and should not be taken as limiting the scope of the utility model. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.

Claims

1. A natural gas kiln is characterized in that: comprises a furnace body, a bluestone feeding belt machine, a bluestone bin, an electronic belt scale, a primary air locking device and a secondary air locking device are sequentially arranged above the furnace body from top to bottom, a first outlet of the bluestone feeding belt machine is arranged at a first inlet at the upper end of the bluestone bin, the electronic belt scale is arranged below a second outlet at the lower end of the bluestone bin, a third outlet at the left end of the electronic belt scale is arranged at a second inlet at the upper end of the primary air locking device and is connected with a third inlet at the upper end of the secondary air locking device, a fourth outlet at the lower end of the primary air locking device is connected with a third inlet at the upper end of the secondary air locking device, a fifth outlet at the lower end of the secondary air locking device penetrates through a round hole on the top wall of the furnace body and is arranged in the furnace body, a flue gas leading-in pipe communicated with the inner cavity of the furnace body is arranged at the upper front wall of the furnace body, a top observation door is arranged in the mounting hole, the furnace body is internally provided with a plurality of thermocouples at equal intervals, a first platform, a second platform, a third platform and a fourth platform are sequentially arranged in the furnace body from top to bottom, a plurality of combustors are arranged between the second platform and the third platform and are arranged close to the third platform, air inlets of the combustors are communicated with air inlet channels which are obliquely arranged towards the furnace body, air outlets of the combustors are communicated with the inner cavity of the furnace body, bottom ignition doors are arranged on the front wall of the furnace body between the third platform and the fourth platform and are close to each combustor, the lower end of the bottom wall of the furnace body is erected on a kiln foundation through connection, blast caps communicated with the inside of the furnace body are respectively arranged on the front wall and the rear wall of the bottom end of the furnace body, and the opening of the furnace body is communicated with a discharge cone, the kiln furnace is characterized in that a disc ash discharging machine is arranged below an outlet at the lower end of the discharging cone, a star-shaped ash discharging machine is arranged below the outlet of the disc ash discharging machine, an ash discharging belt machine is arranged below the outlet of the star-shaped ash discharging machine, the ash discharging belt machine and the star-shaped ash discharging machine are arranged in a kiln foundation, and the furnace body comprises high-alumina bricks, clay bricks, fillers and light bricks which are sequentially arranged from inside to outside.

2. The natural gas kiln as recited in claim 1, wherein: the bluestone silo is an 80-cubic bluestone silo.

3. The natural gas kiln as recited in claim 1, wherein: the bluestone silo is arranged on the top wall of the furnace body through a supporting frame.

4. The natural gas kiln as recited in claim 1, wherein: the outer end of each platform extends out of the inner wall of the furnace body.

5. The natural gas kiln as recited in claim 1, wherein: the disc ash hoist is fixed on the connecting frame.