CN107892465B

CN107892465B - Method for dredging blockage of checker of regenerator of glass kiln

Info

Publication number: CN107892465B
Application number: CN201711243921.0A
Authority: CN
Inventors: 董清世; 张利
Original assignee: XINYI ENVIRONMENTAL PROTECTION SPECIAL GLASS (JIANGMEN) CO Ltd
Current assignee: XINYI ENVIRONMENTAL PROTECTION SPECIAL GLASS (JIANGMEN) CO Ltd
Priority date: 2017-11-30
Filing date: 2017-11-30
Publication date: 2020-11-06
Anticipated expiration: 2037-11-30
Also published as: CN107892465A

Abstract

The invention belongs to the technical field of blockage dredging, and particularly relates to a method for dredging blockage of a checker of a regenerator of a glass kiln, which comprises the following steps: removing the cap: providing a hook, extending the hook into the upper part of the lattice body corresponding to the opening of the heat storage chamber wall above the lattice body, and hooking the distorted bricks formed at the top of the lattice body by the hook and moving the distorted bricks out of the opening; and (3) burn-through: and providing a combustion device, placing the combustion device below the rider arch of the lattice body at the position of the poking hot repair door of the heat storage chamber wall corresponding to the lower part of the lattice body, and starting the combustion device to be sequentially aligned with the blocked lattice body holes for combustion so as to gradually melt and drip low-temperature eutectic substances blocked on the lattice body holes and be burnt. The invention can ensure the grid bodies to be smooth up and down, ensure the smoke exhaust and air intake conditions of the grid bodies of the regenerator to be good, reduce the energy consumption, reduce at least 1200 cubic gas per day for each glass production line, reduce the burning loss of the glass melting furnace and improve the melting quality of the glass melting furnace.

Description

Method for dredging blockage of checker of regenerator of glass kiln

Technical Field

The invention belongs to the technical field of blockage dredging, and particularly relates to a method for dredging blockage of a checker of a regenerator of a glass kiln.

Background

The regenerator of the glass kiln is used for recovering the waste heat of the flue gas, preheating the air, increasing the combustion temperature, fully burning the flue gas, and further increasing the flame temperature in the kiln, so that the fuel can be saved, and the heat efficiency is improved. The working principle is that the lattice body is used as a heat accumulator to accumulate the heat of the flue gas, and the accumulated heat is used for preheating the air to reach a certain temperature after the fire is changed. However, when the new glass kiln normally operates for more than two years, the checker bodies of the heat storage chamber begin to be blocked in different degrees, wherein the blockage of heavy oil and gas fuel is more serious than that of natural gas, especially the blockage of the glass kiln is serious after the glass kiln operates for more than four years, if the blockage is not performed in time, the smoke exhaust and the air blowing are seriously influenced, the energy waste and the energy consumption are higher, the waste heat power generation is influenced, and the burning loss of the kiln is increased. Therefore, the unblocking of the regenerator checker of the glass kiln is of great importance.

Disclosure of Invention

The invention aims to provide a method for dredging blockage of a checker of a glass kiln regenerator, and aims to solve the technical problems that the use and energy waste of the checker of the glass kiln regenerator in the prior art are influenced due to blockage.

In order to achieve the purpose, the invention adopts the technical scheme that: a method for dredging blockage of a checker of a regenerator of a glass kiln comprises the following steps:

removing the cap: providing a hook, extending the hook into the upper part of the lattice body corresponding to the opening of the heat storage chamber wall above the lattice body, and hooking and moving out the distorted bricks formed at the top of the lattice body to the outside of the opening by using the hook;

and (3) burn-through: and providing a combustion device, placing the combustion device below the rider arch of the lattice body at the position of the poking hot repair door of the heat storage chamber wall corresponding to the lower part of the lattice body, and starting the combustion device to be aligned with the blocked lattice body holes one by one to combust so that the low-temperature eutectic substances blocked on the lattice body holes are gradually melted and dropped to be burnt.

Preferably, in the step of uncapping, a stamp is further provided, the stamp extends into the position of the opening hole and above the grid body, the twist deformation brick hooked by the hook is moved out of the stamp, and the stamp is moved out of the opening hole to realize the movement of the twist deformation brick out of the opening hole.

Preferably, in the step of uncapping, before the hook extends into the upper part of the lattice body at the position of the open hole, the open hole is subjected to reaming treatment, and the width of the open hole after the reaming treatment is 500 mm-700 mm, and the height of the open hole is 300 mm-500 mm.

Preferably, in the step of taking off the cap, a steel plate is further provided, and the steel plate is arranged at the opening and extends into the upper part of the lattice body and covers the upper part of the lattice body hole hooked by the twisted deformation brick to assist the hook to hook the rest of the twisted deformation brick at the top of the lattice body.

Preferably, in the firing step, the temperature at which the combustion device performs combustion in alignment with the plugged grid holes is 800 to 1000 ℃.

Preferably, burn and lead to in the step, burner includes bracing piece, barrel, combustion-supporting tuber pipe and fixed regulating part, the barrel be vertical set up in one side of bracing piece and through fixed regulating part with the bracing piece is connected, just the bottom of barrel is equipped with the fuel entry, the combustion-supporting tuber pipe is worn to locate in the barrel, just the bottom of combustion-supporting tuber pipe is equipped with combustion-supporting wind entry.

Preferably, the combustion device further comprises a base, and the bottom of the supporting rod is fixed on the base.

Preferably, fixed regulating part includes fixed sliding sleeve and locking bolt, fixed sliding sleeve with barrel fixed connection, the bracing piece is worn to establish fixed sliding sleeve and with fixed sliding sleeve sliding connection, locking bolt with fixed sliding sleeve threaded connection, locking bolt's the inner with the bracing piece butt with fixed sliding sleeve with the bracing piece locking.

Preferably, the method for dredging blockage of the checker of the glass kiln regenerator further comprises the following steps:

poking: and providing a poking rod, and poking the poking rod below the rider arch of the lattice body at the position corresponding to the poking hot repair door of the heat storage chamber wall below the lattice body from the bottom of the rider arch to the top of the lattice body so as to dredge the cap plug at the top of the lattice body.

cleaning: providing a cleaning device, and extending the cleaning device into the upper part of the grid body at the position of the opening to clean the grid body hooked by the twisted deformation bricks; the cleaning device comprises a compressed air pipe, an inner water pipe and an outer water pipe, wherein the inner water pipe is wrapped outside the compressed air pipe, a water outlet is formed in the inner water pipe, the outer water pipe is wrapped outside the inner water pipe and communicated with the inner water pipe, a water inlet is formed in the outer water pipe, and an air inlet and an air outlet exposed out of the inner water pipe are formed in the two ends of the compressed air pipe respectively.

The invention has the beneficial effects that: in the step of cap picking, the hook extends into the position above the lattice body at the opening and hooks the distorted bricks formed at the top of the lattice body and moves out of the opening, so that the distorted bricks are cleaned; in the burn-through step, a burning device is placed below a grate arch of the grid body at the burn-through repair door of the heat storage chamber wall below the corresponding grid body and is burnt in alignment with the plugged grid body holes one by one, so that low-temperature eutectic substances plugged on the grid body holes are gradually melted and dropped to be burnt, and then the low-temperature eutectic substances plugged on the grid body holes are cleaned. So can guarantee the checker unblocked from top to bottom for the regenerator checker is discharged fume the windward situation good, has reduced the energy consumption, and makes every glass production line reduce 1200 cubic gas at least every day, alleviates the scaling loss of glass melting furnace, improves the melting quality of glass melting furnace, creates bigger economic benefits for the enterprise.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

FIG. 1 is a flow chart of a method for dredging blockage of a checker of a regenerator of a glass kiln according to an embodiment of the present invention.

FIG. 2 is a schematic structural diagram of a regenerator subjected to dredging by the glass kiln regenerator checker plugging dredging method provided by the embodiment of the invention.

FIG. 3 is a schematic structural diagram of a combustion apparatus used in the method for dredging blockage of the checker of the regenerator of the glass kiln according to the embodiment of the present invention.

Fig. 4 is a schematic structural diagram of a cleaning device used in the dredging method for blocking the checker of the regenerator of the glass kiln according to the embodiment of the present invention.

Wherein, in the figures, the respective reference numerals:

10-support rod 20-gun barrel 21-fuel inlet

30-combustion-supporting air pipe 31-combustion-supporting air inlet 40-fixed adjusting piece

41-fixed sliding sleeve 42-locking bolt 50-base

51-inclined stay 60-compressed air pipe 61-air inlet

62-air outlet 70-inner water pipe 80-outer water pipe

100-combustion apparatus 200-cleaning apparatus 300-regenerator

301-opening 302-burning and poking heat repair door 400-lattice body

500-rider arch 600-floor.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to fig. 1-4 are exemplary and intended to be used for explanation of the invention, and should not be construed as limiting the invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

As shown in fig. 1 to 3, an embodiment of the present invention provides a method for dredging blockage of a checker of a regenerator of a glass kiln, including the following steps:

removing the cap: providing a hook, extending the hook into the upper part of the lattice body 400 at the position corresponding to the opening 301 of the heat storage chamber wall above the lattice body 400, and hooking the distorted bricks formed at the top of the lattice body 400 by using the hook and moving the distorted bricks out of the opening 301;

and (3) burn-through: providing a combustion device 100, placing the combustion device 100 below the rider arch 500 of the lattice body 400 at the position corresponding to the burning barrel hot repair door 302 of the heat storage chamber wall below the lattice body 400, and starting the combustion device 100 to burn one by one aiming at the blocked lattice body holes so as to gradually melt and drip low-temperature eutectic substances blocked on the lattice body holes to be burnt.

In the cap picking step, the hooks extend into the positions of the openings 301 to the upper side of the checker 400, and hook up and move out the distorted bricks formed at the top of the checker 400 to the outside of the openings 301, so that the distorted bricks are cleaned; in the burn-through step, the combustion apparatus 100 is placed under the rider arch 500 of the lattice body 400 at the burn-in repair door 302 of the heat storage wall corresponding to the lower part of the lattice body 400 and is burned in alignment with the plugged lattice body holes one by one so that the low-temperature eutectic plugged in the lattice body holes gradually melts and drops to be burned, thereby completing the cleaning of the low-temperature eutectic plugged in the lattice body holes. So can guarantee the checker 400 unblocked from top to bottom for the checker 400 of regenerator 300 exhausts fume and upwinds the situation good, has reduced the energy consumption, and make every glass production line reduce 1200 cubic gas at least every day, alleviate the scaling loss of glass melting furnace, improve the melting quality of glass melting furnace, create bigger economic benefits for the enterprise.

Further, a floor slab 600 is arranged below the side of the opening 301 outside the heat storage chamber wall, so that a worker can step on the floor slab when the cap picking step is carried out.

Further, the hook is made of a heat-resistant metal material, and thus the hook can be operated above the high-temperature lattice body 400 without being deformed and damaged, and thus the service life thereof can be extended.

In this embodiment, the method for dredging the blockage of the checker of the regenerator of the glass kiln further comprises the following steps: poking: providing a poking rod, and poking the poking rod below the rider arch 500 of the grid body 400 at the position corresponding to the poking hot repair door 302 of the heat storage chamber wall below the grid body 400 from the bottom of the rider arch 500 to the top of the grid body 400 so as to dredge the cap blockage at the top of the grid body 400. In particular, the poking step may be before the capping step, or after the burn-through step. Wherein, the poking rod is adopted to reciprocate four times or so up and down in the grid body hole above the lower part of the rider arch 500, so that the blocking objects (powder and burning-off cylindrical bricks) of the cover cap are dredged. The poking step in combination with the burn-through step maximizes the cleaning of plugs lodged in the grid cells.

Further, the barrel is preferably made of stainless steel. The diameter of the poking rod is preferably 10 mm-12 mm, a cross-shaped diamond top head made of a 6mm thick iron plate can be arranged at the top of the poking rod, and the cross-shaped diamond top head can be used for effectively cleaning the blockage in the grid holes.

As shown in fig. 4, in this embodiment, the method for dredging blockage of the checker of the regenerator of the glass kiln further includes the following steps: cleaning: providing a cleaning device 200, extending the cleaning device 200 into the upper part of the lattice body 400 at the position of the opening 301 to clean the lattice body 400 hooked by the twisted deformation bricks, or directly cleaning the powder and accumulated dust which are not twisted, deformed and accumulated above the lattice body 400; specifically, the cleaning step may be performed in conjunction with decapping, i.e., the lattice body 400 may be cleaned after the cleaning of the distorted bricks at the top of the partial lattice body 400 is completed.

As shown in fig. 4, the cleaning device 200 further includes a compressed air pipe 60, an inner water pipe 70 and an outer water pipe 80, the inner water pipe 70 is wrapped outside the compressed air pipe 60, a water outlet is formed in the inner water pipe 70, the outer water pipe 80 is wrapped outside the inner water pipe 70 and is communicated with the inner water pipe 70, a water inlet is formed in the outer water pipe 80, and an air inlet 61 and an air outlet 62 exposed outside the inner water pipe 70 are respectively formed in two ends of the compressed air pipe 60. Specifically, the compressed air pipe 60 extends into the upper part of the lattice body 400 at the opening 301 to clean the lattice body 400 hooked by the twisted deformed brick, and the high-pressure air is introduced into the air inlet 61 of the compressed air pipe 60 and is sprayed out from the air outlet 62 to clean the lattice body 400. Wherein, the water inlet of outer water pipe 80 lets in the cooling water, and the cooling water flows through inner water pipe 70 to the delivery port from inner water pipe 70 flows out, so make the cooling water realize that the circulation flow carries out cooling to compressed air pipe 60, prevent compressed air pipe 60 because high temperature and deformation damage in the during operation of lattice body 400 top, and then ensure cleaning device 200's normal work.

In this embodiment, in the step of removing the cap, a stamp is further provided, the stamp is inserted into the opening 301 and above the grid body 400, the twisted deformation brick hooked by the hook is moved out of the stamp, and the stamp is moved out of the opening 301 to move the twisted deformation brick out of the opening 301. Specifically, the poking device extending into the upper part of the grid body 400 can bear the twisted and deformed bricks hooked by the hooks to move, and then the poking device bearing the twisted and deformed bricks to move is moved out of the opening 301, so that the twisted and deformed bricks can be moved out. Therefore, the twisted and deformed bricks can be cleaned more conveniently. And can also prevent the twisted bricks from falling below the grid body 400 when the twisted bricks are hooked.

In this embodiment, in the step of removing the cap, before the hook is inserted into the opening 301 to the upper side of the lattice body 400, the opening 301 is reamed, and the width of the opening 301 after the reaming is 500mm to 700mm and the height of the opening 301 after the reaming is 300mm to 500 mm. Further, the open pore 301 is subjected to a hole expanding treatment, preferably a small-sized pneumatic pick, and the width of the open pore 301 after the hole expanding treatment is 500mm to 700mm, and the height thereof is 300mm to 500mm, that is, the width of the open pore 301 may be 500mm, 600mm or 700mm, and the height thereof may be 300mm, 400mm or 500mm, so that the open pore 301 is large enough for the hook and the stamp to extend above the lattice body 400, and the larger twisted and deformed brick can be conveniently lifted and removed.

In this embodiment, in the step of removing the cap, a steel plate is further provided, and the steel plate extends into the upper portion of the lattice body 400 at the opening 301 and covers the upper portion of the lattice body hole where the twisted deformed brick is hooked so as to assist the hook to hook the twisted deformed bricks on the top portions of the other lattice bodies 400. Specifically, the steel sheet adopts heat-resisting metal material to make and forms, can stretch into the top of grid body 400 and cover on the grid body hole of accomplishing the distortion shape brick clearance, stab like this and the hook all can support through this steel sheet to stab and the hook stretches into the top of the grid body 400 who more keeps away from trompil 301, and when the distortion shape brick of clearance, also can further place the distortion shape brick and drop to the grid body 400 below in the grid body hole.

In the present embodiment, in the firing step, the temperature at which the combustion apparatus 100 performs combustion in alignment with the plugged grid holes is 800 to 1000 ℃. The burning temperature of the burning device 100 aiming at the plugged grid body holes can be 800 ℃, 900 ℃ or 1000 ℃, so that the blockage in the grid body 400 can be burnt through more quickly under the temperature numerical range, and the dredging work can be completed more quickly.

As shown in fig. 2 to 3, in the present embodiment, in the burning-through step, the combustion apparatus 100 includes a support rod 10, a barrel 20, a combustion-supporting air pipe 30 and a fixing and adjusting member 40, the barrel 20 is vertically disposed at one side of the support rod 10 and is connected to the support rod 10 through the fixing and adjusting member 40, a fuel inlet 21 is disposed at the bottom of the barrel 20, the combustion-supporting air pipe 30 is inserted into the barrel 20, and a combustion-supporting air inlet 31 is disposed at the bottom of the combustion-supporting air pipe 30. When the combustion device is used specifically, the combustion device 100 is placed below the rider arch 500 of the lattice body 400 at the position corresponding to the burning barrel hot repair door 302 of the heat storage chamber wall below the lattice body 400, then the height position of the gun barrel 20 is adjusted relative to the supporting rod 10, and after the height position of the gun barrel 20 is adjusted, the supporting rod 10 is connected with the gun barrel 20 in a locking mode through the fixing adjusting piece 40, and therefore the gun barrel 20 can be fixedly supported. Then, fuel is introduced into a fuel inlet 21 at the bottom of the gun tube 20, combustion-supporting air is introduced into a combustion-supporting air inlet 31 at the bottom of the combustion-supporting air pipe 30, and after ignition, the gun tube 20 can be aligned to the blocked grid body holes to burn so that low-temperature co-molten matters blocked on the grid body holes are gradually melted and dropped to be burnt, and a flame tongue sprayed out from the gun tube 20 can quickly reach a temperature value of 800-1000 ℃ under the action of the combustion-supporting air, so that the blockage in the grid body 400 is quickly burnt, and the dredging work is quickly completed.

Further, the barrel 20 may be a natural gas or heavy oil pipe. That is, natural gas can be introduced into the natural gas pipe as fuel, and heavy oil can be introduced into the heavy oil pipe as fuel.

As shown in fig. 2 to 3, in the present embodiment, the combustion apparatus 100 further includes a base 50, and the bottom of the supporting rod 10 is fixed on the base 50. The base 50 serves as a support for mounting the support rod 10, so that the entire combustion apparatus 100 can be more stably placed under the rider arch 500, and the combustion apparatus 100 can be more stably and reliably used.

As shown in fig. 2 to 3, further, the base 50 includes at least three annularly and uniformly distributed diagonal braces 51, the upper ends of the three annularly and uniformly distributed diagonal braces 51 are fixed together, the lower end of the support rod 10 is fixed together with the upper ends of the three annularly and uniformly distributed diagonal braces 51, and the lower ends of the three annularly and uniformly distributed diagonal braces 51 extend radially, so that the three annularly and uniformly distributed diagonal braces 51 are substantially inclined, and at least three points of the three annularly and uniformly distributed diagonal braces 51 are supported on a plane when being placed on the plane, thereby improving the stability and reliability of the base 50 placed on the plane.

As shown in fig. 2 to 3, in this embodiment, the fixed adjusting member 40 includes a fixed sliding sleeve 41 and a locking bolt 42, the fixed sliding sleeve 41 is fixedly connected to the barrel 20, the support rod 10 penetrates through the fixed sliding sleeve 41 and is slidably connected to the fixed sliding sleeve 41, the locking bolt 42 is in threaded connection with the fixed sliding sleeve 41, and an inner end of the locking bolt 42 abuts against the support rod 10 to lock the fixed sliding sleeve and the support rod 10. Specifically, when adjusting the height position of barrel 20, slide for the bracing piece 10 fixed sliding sleeve 41 because this fixed sliding sleeve 41 and barrel 20 are fixed connection, so slide when fixed sliding sleeve 41, also realize the slip to barrel 20 simultaneously, so can adjust the height position of barrel 20, after the completion is adjusted the height position of barrel 20, screw up locking bolt 42, and the bracing piece 10 is pushed down to the inner butt of locking bolt 42, can lock immobilization cover and bracing piece 10 like this, just so accomplish the fixing to barrel 20.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. A method for dredging blockage of checker of regenerator of glass kiln is characterized in that: the method comprises the following steps:

removing the cap: providing a hook, carrying out reaming treatment on the opening of the heat storage chamber wall, wherein the width of the opening after the reaming treatment is 500-700 mm and the height of the opening after the reaming treatment is 300-500 mm, extending the hook into the upper part of the lattice body at the position corresponding to the opening of the heat storage chamber wall above the lattice body, and hooking and moving out a distorted brick formed at the top of the lattice body to the outside of the opening by using the hook; the steel plate is stretched into the upper part of the lattice body at the opening part and covers the upper part of the lattice body hole hooked by the distortion deformation brick to assist the hook to hook the distortion deformation bricks at the tops of the rest lattice bodies so as to prevent the distortion deformation bricks from falling into the lattice body hole to block the lattice body hole; the stabs are provided and extend into the upper portion of the grid body at the positions of the openings, the twisted and deformed bricks hooked up by the hooks are moved out of the stabs, and the stabs are moved out of the openings so that the twisted and deformed bricks can be hooked up and moved out of the openings;

and (3) burn-through: providing a combustion device, placing the combustion device below a rider arch of the lattice body at a position corresponding to a poking hot repair door of a heat storage chamber wall below the lattice body, starting the combustion device to be aligned with the blocked lattice body holes one by one to combust so that low-temperature eutectic substances blocked on the lattice body holes are gradually melted and dropped to be combusted, wherein the temperature for the combustion device to be aligned with the blocked lattice body holes is 900-1000 ℃;

2. The glass kiln regenerator checker plugging unblocking method of claim 1, further comprising: burn and lead to in the step, burner includes bracing piece, barrel, combustion-supporting tuber pipe and fixed regulating part, the barrel be vertical set up in one side of bracing piece and through fixed regulating part with the bracing piece is connected, just the bottom of barrel is equipped with the fuel entry, combustion-supporting tuber pipe wears to locate in the barrel, just the bottom of combustion-supporting tuber pipe is equipped with combustion-supporting air entry.

3. The glass kiln regenerator checker plugging unblocking method of claim 2, further comprising: the combustion device further comprises a base, and the bottom of the supporting rod is fixed on the base.

4. The glass kiln regenerator checker plugging unblocking method of claim 2, further comprising: the fixed regulating part comprises a fixed sliding sleeve and a locking bolt, the fixed sliding sleeve is fixedly connected with the gun barrel, the supporting rod penetrates through the fixed sliding sleeve and is in sliding connection with the fixed sliding sleeve, the locking bolt is in threaded connection with the fixed sliding sleeve, and the inner end of the locking bolt is abutted against the supporting rod so that the fixed sliding sleeve is locked with the supporting rod.

5. The method for dredging blockage of the checker grids of the regenerative chambers of the glass kiln according to any one of claims 1 to 4, wherein the method comprises the following steps: the method for dredging the blockage of the checker of the regenerator of the glass kiln further comprises the following steps: