CN212482086U

CN212482086U - Energy-saving kiln

Info

Publication number: CN212482086U
Application number: CN202021733649.1U
Authority: CN
Inventors: 汤勇
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-08-18
Filing date: 2020-08-18
Publication date: 2021-02-05
Anticipated expiration: 2030-08-18

Abstract

The utility model discloses an energy-saving kiln, which comprises a kiln wall body, burner supports are equidistantly arranged in the kiln wall body, burners which are used for spraying fire to the inside of the kiln body are arranged on the burner supports, a polycrystalline cotton layer is arranged at one end of the burner supports, which faces the inside of the kiln, a zirconium-containing asbestos layer and a common asbestos layer are sequentially arranged at one end of the burner supports, which is far away from the inside of the kiln, a kiln shed roof is arranged at the upper end of the kiln wall body, the polycrystalline cotton layer, a ceiling framework, the zirconium-containing asbestos layer and the common asbestos layer are sequentially arranged on the kiln roof from bottom to top, a kiln car which travels along the length direction of the kiln body is arranged in the kiln, the common asbestos layer, the zirconium-containing asbestos layer and the polycrystalline cotton layer are sequentially arranged on the upper surface of the kiln car, the utility model discloses a burner support is arranged in the asbestos wall body, and the contact surface, the technical problem in the installation of the whole asbestos kiln body is solved, and the energy-saving level of the kiln is greatly improved.

Description

Energy-saving kiln

Technical Field

The utility model relates to a ceramic kiln technical field specifically is an energy-conserving kiln.

Background

The construction of the high-temperature firing kiln in the product firing industry of tunnel kilns is to stick high-temperature cotton on the inner wall surface of a kiln body after high-temperature resistant bricks are built, and to fire products by adopting up-and-down arranged firing guns on two sides of the kiln body, so that the method is limited to using high-temperature heat-resistant bricks as main load heat insulation materials of the kiln body, and the problems of long construction period (120 days), low heat utilization efficiency, high firing cost (accounting for more than 35 percent of the total cost), poor quality of fired products and high construction cost of the kiln generally exist by adopting the method of building the high-temperature resistant bricks.

According to the comparison of the performances of the prior heat-resistant materials, the heat-resistant and heat-insulating performance of the asbestos is 35 to 40 percent higher than that of the high-temperature heat-resistant brick, and if the asbestos is adopted to replace the high-temperature heat-resistant brick, the energy consumption is reduced by 35 to 40 percent. In order to achieve the aim of keeping the upper and lower temperatures consistent, the conventional tunnel kiln is fired by arranging burners at the upper and lower parts of a kiln body to keep the upper and lower temperatures consistent, and if asbestos is used for replacing a high-temperature heat-resistant brick as a wall body for reducing energy consumption, although the energy-saving effect is obvious, the asbestos cannot bear the dead weight of the burners and the weight of a kiln ceiling, so that the kiln is easy to collapse, and the conventional kiln firing technology can only use high-temperature heat-resistant heat-insulating bricks for bricking and has poor heat-insulating performance and high energy consumption per kilogram of the kiln.

SUMMERY OF THE UTILITY MODEL

The utility model aims at improving and innovating the defects and problems existing in the background technology and providing an energy-saving kiln.

An energy-saving kiln comprises a kiln wall body and a kiln shed roof, wherein the kiln wall body and the kiln shed roof enclose a furnace chamber, burner supports are arranged in the kiln wall body at intervals along the length direction of the furnace body, each burner support comprises an upper burner support and a lower burner support, a burner for spraying fire to the inside of the furnace body is arranged on each burner support, a first polycrystalline cotton layer is arranged at one end, facing the furnace chamber, of each burner support, a first zirconium-containing asbestos layer is arranged at one end, far away from the furnace chamber, of each burner support, a first common asbestos layer is arranged at one end, far away from the first polycrystalline cotton layer, of each first zirconium-containing asbestos layer, the kiln shed roof is erected on the kiln wall body, a second polycrystalline cotton layer, a second zirconium-containing asbestos layer and a second common asbestos layer are sequentially arranged from bottom to top of the kiln shed roof, ceiling frameworks are arranged at intervals between the second polycrystalline cotton layer and the second zirconium-containing asbestos layer, and a kiln car walking along the length direction of the furnace body is arranged in the kiln.

It is obvious by above-mentioned technical scheme, burner support and ceiling skeleton are as the support chassis of kiln wall body and kiln shed roof, play the effect of supporting burner dead weight and kiln shed roof dead weight, be provided with the polycrystal cotton between burner support and ceiling skeleton and the furnace chamber simultaneously, avoid the interior high temperature flame direct contact support chassis of stove for the long-term high temperature of kiln body uses indeformable, the kiln is heated and is not collapsed, asbestos heat-resisting heat-proof quality is 35-40% higher than the thermal-insulated effect of high temperature heat-resisting brick simultaneously, consequently adopt the high temperature heat-resisting brick of polycrystal asbestos replacement to build the kiln wall body, energy-conserving effect is obvious, the energy saving rate can reach more than 35%.

The further scheme is that a third common asbestos layer, a third zirconium-containing asbestos layer and a third polycrystalline cotton layer are sequentially arranged on the upper surface of the kiln car, a slit is formed between the kiln car and the kiln wall body at an interval, a sealing air pipe is arranged at the lower end of the bottom of the kiln wall body, an air outlet is formed in the sealing air pipe, and baffle plates matched with the sealing air pipe are arranged on two sides of the lower end of the kiln car.

Therefore, gas with certain pressure is ejected out through the gas outlet of the sealing gas pipe, and high-temperature flame in the furnace is prevented from jumping to the kiln car through a slit between the kiln wall and the kiln car to damage the kiln car.

The kiln wall body is characterized in that a supporting plate is arranged at the bottom of the kiln wall body, a supporting frame is fixedly connected to the lower surface of the supporting plate, and one end, far away from the kiln wall body, of the supporting frame is arranged on the ground.

Therefore, the whole total amount of the kiln is transmitted to the ground through the transmission effect of the supporting plate and the supporting frame, and the operation stability of the kiln is improved.

The burner comprises an upper layer burner and a lower layer burner, and the upper layer burner is connected with the lower layer burner through a burner fixing support.

Therefore, the burner fixing support is also used as a supporting framework of the kiln wall body, and the operation stability of the kiln wall body is further improved when the kiln wall body is heated.

According to a further scheme, the first zirconium-containing asbestos layer is locked on the first common asbestos layer through self-locking fasteners, the second zirconium-containing asbestos layer is locked on the second common asbestos layer through self-locking fasteners, the first polycrystalline cotton layer is bonded on the first zirconium-containing asbestos layer through heat-resistant glue, and the second polycrystalline cotton layer is bonded on the second zirconium-containing asbestos layer through heat-resistant glue.

The burner support, the ceiling framework and the burner fixing support are made of materials such as silicon carbide or high-alumina bricks or mullite.

Therefore, the silicon carbide, the high-alumina or the mullite has good heat resistance and can meet the requirement of high-temperature use.

In a further scheme, two ends of the second common asbestos layer extend downwards to wrap the second polycrystalline cotton layer and the second zirconium-containing asbestos layer.

The further scheme is that a furnace body outer wall support is arranged at one end, far away from the furnace chamber, of the first common asbestos layer and the second common asbestos layer.

The further scheme is that the air outlet is axially arranged along the sealed air pipe at intervals, and the mounting position of the air outlet on the sealed air pipe corresponds to the mounting position of the lower burner on the kiln wall.

Therefore, the high-temperature flame sprayed by the lower burner meets the gas with certain pressure sprayed by the gas outlet of the sealing gas pipe in the slit, and the high-temperature flame can be effectively prevented from jumping to the kiln car to damage the kiln car.

The further scheme is that one end of the baffle, which is far away from the kiln car, extends to the sealing gas pipe without contacting with the sealing gas pipe, the baffle is positioned below the gas outlet, and the baffle extends along the length direction of the kiln car.

It can be understood that, by the arrangement, the phenomenon that the kiln car is collided with the wall of the kiln car in the advancing process can be avoided, and a good fire leaping prevention effect can be achieved.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the burner support, the burner fixing support and the ceiling framework which are made of heat-resistant materials are used as supporting frameworks of the wall body and the ceiling of the kiln to play a role in supporting the dead weight of the burner and the dead weight of the ceiling of the kiln, meanwhile, the polycrystalline cotton is arranged between the burner support, the burner fixing support and the ceiling framework and the interior of the furnace body, so that high-temperature flame in the furnace is prevented from directly contacting the supporting framework, the all-cotton structure of the kiln is realized, the all-cotton structure of the kiln wall can be used at high temperature for a long time without deformation, the kiln is not collapsed when being heated, the heat-resistant and heat-insulating performance of the asbestos is 35 to 40 percent higher than that of the high-temperature heat-resistant brick, therefore, the furnace wall is built by adopting the polycrystalline asbestos to replace high-temperature heat-resistant bricks, the energy-saving effect is obvious, the energy-saving rate can reach more than 35 percent, the whole weight of the kiln is greatly reduced, the basic requirement on the kiln is greatly reduced, and the construction and use of plants above multiple floors are facilitated;

(2) the method has the advantages that the high-temperature heat-resistant bricks piled on the kiln wall body in the prior art are changed into the integral plate asbestos installation, the installation work amount is small, the construction period is greatly shortened, meanwhile, the thermal expansion and cold contraction performance of the asbestos is superior to that of the high-temperature heat-resistant bricks, a kiln adopting the high-temperature heat-resistant bricks is more easily damaged, and the maintenance interval time is short;

(3) the kiln of prior art is built and is all pasted high temperature cotton at the internal wall face of kiln with high temperature resistant brick building back, and high temperature resistant brick is big with the cotton thermal behavior difference of high temperature, causes the kiln can not heat up rapidly, and the utility model discloses a pure cotton structure has overcome the defect that prior art can not heat up rapidly, just can heat up to normal firing temperature in the short time, has also realized the purpose of energy saving simultaneously.

(4) The traditional high-temperature heat-resistant brick has the heat resistance due to the poor heat insulation performance and needs a certain thickness, and the kiln wall is built by adopting a pure cotton structure, so that the thickness of the kiln wall is greatly reduced, the weight of the kiln body is greatly reduced, materials are saved, and the investment cost of the kiln is reduced.

(5) Because the heat-resistant and heat-insulating performance of the asbestos is 35-40% higher than that of the high-temperature heat-resistant brick, the firing zone of the asbestos kiln body reaches the same temperature of the kiln body of the high-temperature heat-resistant brick, the flame ejection speed of the burner is relatively low, the flow speed in the firing zone of the kiln body is reduced, the deformation rate of a fired product is reduced, and the quality of the product is greatly improved.

Drawings

FIG. 1 is a schematic view of the energy-saving kiln of the utility model;

FIG. 2 is a sectional view of the wall of the kiln of the utility model;

FIG. 3 is an enlarged view of a portion of FIG. 1;

reference numerals: burner 1, auto-lock pintle 2, first ordinary asbestos layer 3, furnace body outer wall support 4, support frame 5, baffle 6, kiln car 7, gas outlet 8, sealed trachea 9, backup pad 10, first polycrystal cotton layer 11, first zirconium-containing asbestos layer 12, upper burner support 13, ceiling skeleton 14, burner fixed bolster 15, lower floor's burner support 16, second polycrystal cotton layer 17, second zirconium-containing asbestos layer 18, second ordinary asbestos layer 19, third polycrystal cotton layer 20, third zirconium-containing asbestos layer 21, third ordinary asbestos layer 22, slit 23, furnace chamber 24.

Detailed Description

The present invention will be described in further detail with reference to fig. 1 to 3.

The utility model provides an energy-saving kiln, including kiln wall body and kiln shed roof, kiln wall body and kiln shed roof enclose into furnace chamber 24, the kiln shed roof is set up on kiln wall body, kiln wall body is provided with first polycrystal cotton layer 11 from inside to outside respectively, first zirconium-containing asbestos layer 12 and first ordinary asbestos layer 3, kiln shed roof from the bottom up is provided with second polycrystal cotton layer 17 respectively, the second contains zirconium cotton layer 18 and second ordinary asbestos layer 19, the polycrystal cotton, zirconium-containing cotton and ordinary asbestos high temperature resistance reduce in proper order, first zirconium-containing asbestos layer 12 locks on first ordinary asbestos layer 3 through auto-lock pintle 2, second zirconium-containing asbestos layer 18 locks on second ordinary asbestos layer 19 through auto-lock pintle 2, first polycrystal cotton layer 11 bonds on first zirconium-containing asbestos layer 12 through heat-resistant glue, second polycrystal cotton layer 17 bonds on second zirconium-containing asbestos layer 18 through heat-resistant glue, second polycrystal cotton layer 19 both ends downwardly extending parcel second polycrystal cotton layer 17 and second zirconium-containing asbestos layer 19 contain 18, the one end of first ordinary asbestos layer 3 and second ordinary asbestos layer 19 keeping away from furnace chamber 24 is provided with furnace body outer wall support 4, along furnace body length direction (as in the vertical paper direction in fig. 1) interval setting nozzle support in the kiln burning zone wall body, nozzle support sets up between first polycrystal cotton layer 11 and first zirconium-containing asbestos layer 12, install nozzle 1 that spouts fire to furnace chamber 24 on the nozzle support, nozzle support includes upper nozzle support 13 and lower floor nozzle support 16, nozzle 1 includes upper nozzle 101 and lower floor nozzle 102, install upper nozzle 101 on the upper nozzle support 13, install lower floor nozzle 102 on the lower floor nozzle support 16, be connected through nozzle fixed bolster 15 between the upper nozzle 101, interval setting ceiling skeleton 14 between second polycrystal cotton layer 17 and the second zirconium-containing asbestos layer 18 on kiln shed top, ceiling skeleton 14 and nozzle fixed bolster 15 are formed by carborundum or high alumina or mullite material preparation The silicon carbide or high-alumina brick or mullite has good heat resistance, can meet high-temperature use, the burner support prepared by the heat-resistant material is arranged, the ceiling framework 14 and the burner fixing support 15 are used as the supporting framework of the kiln wall body and the kiln shed roof, the effect of supporting the self weight of the burner 1 and the self weight of the kiln shed roof is achieved, meanwhile, polycrystalline cotton is arranged between the burner support, the ceiling framework 14 and the burner fixing support 15 and the furnace chamber 24, the supporting framework is prevented from being directly contacted by high-temperature flame in the furnace, the kiln body is not deformed after being used at high temperature for a long time, the kiln is not collapsed after being heated, meanwhile, the heat resistance and the heat insulation performance of asbestos are 35-40% higher than the heat insulation effect of the traditional kiln high-temperature heat-resistant brick, therefore.

In this embodiment: the kiln car 7 walking along the length direction of the furnace body is arranged in the kiln, a third common asbestos layer 22, a third zirconium-containing asbestos layer 21 and a third polycrystalline cotton layer 20 are sequentially arranged on the upper surface of the kiln car 7 from bottom to top, a slit 23 is arranged between the kiln car 7 and the wall of the kiln, a support plate 10 is arranged at the bottom of the wall of the kiln, a support frame 5 and a sealing air pipe 9 are fixedly connected to the lower surface of the support plate 10, one end, away from the wall of the kiln, of the support frame 5 is arranged on the ground, the whole total amount of the kiln is transmitted to the ground through the transmission effect of the support plate 10 and the support frame 5, the running stability of the kiln is improved, the sealing air pipe 9 is connected with an external air blower, the air blower is not shown in the figure, air outlets 8 are arranged on the sealing air pipe 9 at intervals along the axial direction of the sealing air, the high-temperature flame sprayed by the lower burner 102 meets the gas with certain pressure sprayed by the gas outlet 8 arranged on the sealing gas pipe 9 in the slit 23, the high-temperature flame can be effectively prevented from spreading up to the kiln car 7 to damage the kiln car 7, the baffle 6 matched with the sealing gas pipe 9 is installed on two sides of the lower end of the kiln car 7, the baffle 6 is located below the gas outlet 8, the baffle 6 extends along the length direction of the kiln car 7, meanwhile, one end, far away from the kiln car 7, of the baffle 6 extends towards the sealing gas pipe 9 without contacting with the sealing gas pipe 9, so that the advancing process of the kiln car 7 cannot collide with a kiln wall body, and a good fire spreading prevention effect can be achieved.

The utility model discloses a theory of operation is: the burner support 13, the burner fixing support 15 and the ceiling framework 14 which are made of heat-resistant materials are used as supporting frameworks of a kiln wall body and a kiln ceiling, so that the effect of supporting the self weight of the burner 1 and the self weight of the kiln ceiling is achieved, the technical problem that the traditional kiln asbestos cannot support the kiln wall body and the wall body must be supported by high-temperature heat-resistant bricks is solved, meanwhile, a polycrystalline asbestos layer is arranged between the burner support 13, the burner fixing support 15 and the ceiling framework 14 and the inside of the kiln body, the high-temperature flame in the kiln is prevented from directly contacting the supporting frameworks, the service life of the supporting frameworks is prolonged, the kiln body is prevented from being deformed in long-term high-temperature use, in addition, the bottom end of the kiln wall body is provided with a sealing air pipe 9, an air outlet 8 is arranged at the position, corresponding to the burner 1, meanwhile, two sides of the lower end of the kiln, the technical problems that high-temperature flame in the kiln can not be arranged into a bent pipeline to avoid the high-temperature flame from flowing down to the kiln car 7 through a gap between the kiln wall and the kiln car 7 to damage the kiln car 7 are solved, the technical problems encountered in the installation of a full-asbestos kiln body are solved through the two technical schemes, and the heat-resistant and heat-insulating performance of asbestos is 35-40% higher than that of a high-temperature heat-resistant brick according to the comparison of the performances of heat-resistant materials, so that the high-temperature heat-resistant brick is replaced by polycrystalline asbestos to construct the kiln wall, the energy-saving effect is obvious, the energy-saving rate can reach more than 35%, and the energy-saving level of the kiln is greatly improved.

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

Claims

1. The utility model provides an energy-saving kiln, includes kiln wall body and kiln shed roof, kiln wall body and kiln shed roof enclose into furnace chamber (24), its characterized in that: burner supports are arranged in the kiln wall body at intervals along the length direction of the furnace body, each burner support comprises an upper burner support (13) and a lower burner support (16), a burner (1) for spraying fire to the inside of the furnace body is arranged on each burner support, a first polycrystalline cotton layer (11) is arranged at one end, facing the furnace chamber (24), of each burner support, a first zirconium-containing asbestos layer (12) is arranged at one end, far away from the furnace chamber (24), of each burner support, a first common asbestos layer (3) is arranged at one end, far away from the first polycrystalline cotton layer (11), of each first zirconium-containing asbestos layer (12), a kiln shed roof is arranged on the kiln wall body in an overlapping mode, a second polycrystalline cotton layer (17), a second zirconium-containing asbestos layer (18) and a second common asbestos layer (19) are sequentially arranged from bottom to top of the kiln shed roof, ceiling frameworks (14) are arranged between the second polycrystalline cotton layer (17) and the second zirconium-containing asbestos layer (18) at intervals, and a kiln car (7) walking along the length direction of the furnace body is arranged in the kiln.

2. The energy-saving kiln as claimed in claim 1, wherein: kiln car (7) upper surface installs ordinary asbestos layer of third (22), the third contains zirconium asbestos layer (21) and third polycrystal cotton layer (20) from bottom to top in proper order, and there are slit (23) at the interval between kiln car (7) and the kiln wall body, and kiln wall body bottom lower extreme is provided with sealed trachea (9), set up gas outlet (8) on sealed trachea (9), baffle (6) with sealed trachea (9) matched with are installed to kiln car (7) lower extreme both sides.

3. The energy-saving kiln as claimed in claim 1, wherein: the kiln wall body bottom is provided with backup pad (10), backup pad (10) lower surface fixed connection has support frame (5), the one end that kiln wall body was kept away from in support frame (5) is installed subaerial.

4. The energy-saving kiln as claimed in claim 1, wherein: the burner (1) comprises an upper layer burner (101) and a lower layer burner (102), and the upper layer burner (101) is connected through a burner fixing support (15).

5. The energy-saving kiln as claimed in claim 1, wherein: first zirconium asbestos layer (12) that contains is locked on first ordinary asbestos layer (3) through auto-lock pintle (2), the second contains zirconium asbestos layer (18) and locks on second ordinary asbestos layer (19) through auto-lock pintle (2), first polycrystal cotton layer (11) contain zirconium asbestos layer (12) at first through the bonding of heat-resisting glue, second polycrystal cotton layer (17) contain zirconium asbestos layer (18) at the second through the bonding of heat-resisting glue.

6. The energy-saving kiln as claimed in claim 1, wherein: the burner support, the ceiling framework (14) and the burner fixing support (15) play a role in supporting the weight of the wall body and the ceiling of the kiln, and the burner support, the ceiling framework (14) and the burner fixing support (15) are made of silicon carbide or high-alumina bricks or mullite heat-resistant materials.

7. The energy-saving kiln as claimed in claim 1, wherein: two ends of the second common asbestos layer (19) extend downwards to wrap the second polycrystalline cotton layer (17) and the second zirconium-containing asbestos layer (18).

8. The energy-saving kiln as claimed in claim 1, wherein: and a furnace body outer wall support (4) is arranged at one end of the first common asbestos layer (3) and one end of the second common asbestos layer (19) far away from the furnace chamber (24).

9. An energy saving kiln as claimed in claim 2, wherein: the air outlet (8) is axially arranged along the sealed air pipe (9) at intervals, and the mounting position of the air outlet on the sealed air pipe (9) corresponds to the mounting position of the lower burner (102) on the kiln wall.

10. An energy saving kiln as claimed in claim 2, wherein: one end of the baffle (6) far away from the kiln car (7) extends to the sealed air pipe (9) but is not contacted with the sealed air pipe (9), the baffle (6) is positioned below the air outlet (8), and the baffle (6) extends along the length direction of the kiln car (7).