CN115875968A

CN115875968A - Energy-saving foamed ceramic plate tunnel kiln cooling system

Info

Publication number: CN115875968A
Application number: CN202211628710.XA
Authority: CN
Inventors: 胡栋; 胡斯友; 高艳春; 王坤文
Original assignee: Hubei Huayuan Kiln Co ltd
Current assignee: Hubei Huayuan Kiln Co ltd
Priority date: 2022-12-18
Filing date: 2022-12-18
Publication date: 2023-03-31

Abstract

The invention discloses an energy-saving foamed ceramic plate tunnel kiln cooling system, wherein a plurality of device groups are arranged in the cooling system in different cooling modes, a stainless steel air box heat exchange cooling mode is used for a cooling device group I, a cooling wall is arranged on a kiln wall for cooling the cooling device group II, a circulating hot air flow cooling mode is used for a cooling device group III and a cooling device group IV, a plurality of device groups are arranged through the cooling system, the foamed ceramic product is effectively cooled through temperature gradient zone control, an indirect cooling mode is adopted through the cooling device group I and the cooling device group II, replaced waste heat is used for supporting combustion of a burner, gas consumption is saved, hot air flow in the kiln is circulated and reciprocated through the cooling device group III and the cooling device group IV, the product is slowly cooled, internal stress generated due to too fast cooling is avoided, product quality is guaranteed, air volume and air pressure are automatically adjusted through the control system, the cooling requirement of a production process is met, energy is saved, and the yield is improved.

Description

Energy-conserving foaming ceramic plate tunnel cave cooling system

Technical Field

The invention relates to the technical field of foamed ceramic production equipment, in particular to an energy-saving foamed ceramic plate tunnel kiln cooling system.

Background

With the improvement of living standard of people, the high-temperature foaming ceramic plate has the advantages of special performances such as fire resistance, sound insulation and decorative effect, and has wide application prospect in building material industry.

The foamed ceramic is prepared with argil tailings, ceramic chips, river and lake silt, admixture and other material and through roasting at high temperature of about 1100 deg.c, spontaneous combustion, melting and foaming to form homogeneous closed-pore ceramic material with high porosity.

The foamed ceramic not only has excellent physical properties and wide application prospect, but also can consume a large amount of various industrial solid wastes and tailings in the manufacturing process, and is an environment-friendly material, so that a foamed ceramic production line is successively built in nationwide by each province through technical development and market cultivation for a few years.

At present, although the cooling belt of the domestic foamed ceramic plate tunnel kiln production line is designed in a larger proportion, the product is still considered to be cooled too fast and unevenly, so that the product is seriously broken when being cut and formed in the last procedure, the product quality and the yield are influenced, and the problem of the cooling belt of the foamed ceramic plate tunnel kiln production line is urgently needed to be solved by a cooling system with an effective cooling mode.

Disclosure of Invention

The invention aims to provide an energy-saving foamed ceramic plate tunnel kiln cooling system to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an energy-conserving foamed ceramic plate tunnel cave cooling system, includes that cooling device group I1, cooling device group II 2, cooling device group III 3, cooling device group IV 4 all set up in cooling system (5), and every cooling device group mode is different, and independent operation, and cooling device group I1 and cooling device group II 2 adopt intercooling mode, are provided with natural air intake, cooling device group III 3 and cooling device IV 4 adopt waste heat circulation cooling mode, and all are connected with hot-blast main, air-supply line, fan, are equipped with on the hot-blast main and mix cold wind mechanism.

As a further scheme of the invention: the cooling device group I1 is provided with stainless steel cooling air boxes at the top and side wall positions of the kiln, natural air is sucked into the air boxes for heat exchange and then is used for combustion supporting of burners, products are cooled in an indirect cooling mode,

as a further scheme of the invention: and the cooling device group II 2 is provided with a cooling wall in the kiln wall, natural wind is sucked into the cooling wall and is changed into hot wind to be burnt by a burner, and a product is cooled in an indirect cooling mode.

As a further scheme of the invention: the hot air pumping pipes of the cooling device III 3 and the cooling device IV 4 are connected with an inlet of a fan, an air inlet pipe is connected with an outlet of the fan, hot air pumped out by the fan from a flue of a furnace body wall enters a coil pipe again and is uniformly pumped into the furnace at multiple points, heat exchange is directly carried out between a product and circulating hot air flow, the product is slowly cooled, a cold air mixing mechanism is arranged on the hot air pumping pipeline at the inlet of the fan to adjust the temperature of the air flow, the temperatures of cooling areas of the cooling device III 3 and the cooling device IV 4 are different, and more groups can be arranged according to the length of a tunnel kiln and temperature gradients.

As a further scheme of the invention: and a valve and a control system component are arranged on a pipeline connected with the cooling system.

Compared with the prior art, the invention has the beneficial effects that: the cooling system utilizes temperature gradient to arrange a plurality of device groups in different cooling modes and independently controls to reasonably cool the foamed ceramic products, thereby ensuring the product quality and yield, after the waste heat is replaced by an indirect cooling mode to burn by a burner, clean hot air without combustion products can greatly save the gas consumption by burning, hot air in the kiln is circulated by a cooling fan, and a cold air mixing mechanism is arranged to adjust the temperature, thereby the foamed ceramic products can be slowly cooled, the stress balance in each direction during the cooling of the products is furthest ensured, the internal stress generated by the products too fast is avoided, the yield of the products during processing and forming is ensured, the control system can effectively adjust the air quantity, the opening degree of the valve, the cold air mixing quantity, the air pressure and the kiln pressure, the cooling requirements of the production process are met, the energy is saved, and the yield is improved.

Drawings

Fig. 1 is a schematic structural diagram of an energy-saving foamed ceramic plate tunnel kiln cooling system.

Fig. 2 is a schematic diagram of hot air circulation of a cooling system of an energy-saving foamed ceramic plate tunnel kiln.

As shown in the figure: 1. a cooling device group I; 2. a cooling device group II; 3. a cooling device group III; 4. a cooling device group IV; 5. a cooling system; 6. a cold air blending mechanism; 7. a hot air exhaust pipe; 8. an air inlet pipeline; 9. a fan.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-2, in the embodiment of the present invention, an energy-saving foamed ceramic plate tunnel kiln cooling system includes a cooling device group i 1, a cooling device group ii 2, a cooling device group iii 3, and a cooling device group iv 4, which are all disposed in a cooling system (5), each cooling device group has a different mode and operates independently, the cooling device group 1 and the cooling device group 2 adopt an indirect cooling mode, and are provided with natural air inlets, the cooling device group iii 3 and the cooling device group iv 4 adopt a waste heat circulation cooling mode, and are connected with a heat pumping pipe 7, an air inlet pipe 8, and a fan 9, and the heat pumping pipe 7 is provided with a cold air mixing mechanism 6.

The cooling device group I1 is characterized in that stainless steel cooling air boxes are arranged on the top and the side walls of the kiln, natural air is sucked into the air boxes for heat exchange and then is used for supporting combustion of burners, and products are cooled in an indirect cooling mode.

And the cooling device group II 2 is provided with a cooling wall in the kiln wall, natural wind is sucked into the cooling wall and is changed into hot wind to be burnt by a burner, and a product is cooled in an indirect cooling mode.

The hot air pumping pipes 7 of the cooling device III 3 and the cooling device IV 4 are connected with an inlet of a fan 9, an air inlet pipe 8 is connected with an outlet of the fan 9, hot air pumped out by the fan 9 from a flue of a furnace body wall enters a coil pipe again and is uniformly pumped into the furnace at multiple points, heat exchange is directly carried out between a product and circulating hot air flow, the product is slowly cooled, a cold air mixing mechanism 6 is arranged on the hot air pumping pipe 7 of the inlet of the fan 9 to adjust the temperature of the air flow, the temperatures of cooling areas of the cooling device III 3 and the cooling device IV 4 are different, and more groups can be arranged according to the length of a tunnel kiln according to the temperature gradient.

And a valve and control system components are arranged on a pipeline connected with the cooling system 5.

The working principle of the invention is as follows:

the cooling system 5 of the invention is provided with a cooling device group I1, the heat in a kiln is subjected to heat exchange with natural wind in a kiln wall and a kiln top air box to cool products, a cooling device group II 2 is arranged, the heat in the kiln and the natural wind in the cooling wall in the kiln wall are subjected to heat exchange to cool the products, after the two intercooling modes are replaced, waste heat is pumped to a burner for combustion supporting by a fan 9, a cooling device group III 3 and a cooling device group IV 4 are arranged, more groups can be arranged according to the length of the kiln and the temperature gradient, the hot airflow in the kiln is circulated and reciprocated by the fan 9, a heat pumping pipeline 7 at the inlet of the fan 9 is provided with a cold air mixing mechanism 6 for adjusting the temperature, a control system can adjust the air quantity, the valve opening, the mixed air quantity and the kiln pressure by controlling a frequency converter, a valve and components, and a plurality of device groups are arranged by the cooling system 5 in different cooling modes by utilizing the temperature gradient, the foamed ceramic product is cooled reasonably by independent control, the product quality and the yield are guaranteed, the waste heat after replacement in an indirect cooling mode is used for combustion supporting by a burner, clean hot air without combustion products is used for combustion supporting, the gas consumption can be greatly saved, hot air flow in the kiln is circulated by a cooling fan 9, and a cold air mixing mechanism 6 is arranged for adjusting the temperature, so that the foamed ceramic product can be cooled slowly, the stress balance in all directions during cooling inside the product is guaranteed to the maximum extent, the internal stress generated by the product too fast cooling is avoided, the finished product rate during processing and forming of the product is guaranteed, the air quantity, the valve opening degree, the cold air mixing quantity, the air pressure and the kiln pressure can be effectively adjusted by controlling a frequency converter, a valve and components by a control system, the cooling requirement of a production process is met, the energy is saved, and the finished product rate is improved.

In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected" and "connected" are to be construed broadly, and may be, for example, a fixed connection, a detachable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.

Claims

1. The utility model provides an energy-conserving foaming ceramic plate tunnel cave cooling system, includes cooling device group I (1), cooling device group II (2), cooling device group III (3), cooling device group IV (4), its characterized in that, cooling device group I (1), cooling device group II (2), cooling device group III (3), cooling device group IV (4) all set up in cooling system (5), and every cooling device group mode is different, and independent operation, cooling device group I (1) and cooling device group II (2) adopt the intercooling mode, are provided with natural air intake, cooling device group III (3) and cooling device IV (4) adopt the waste heat circulation cooling mode, and all are connected with hot-blast pipe (7), air inlet pipeline (8), fan (9), are equipped with on hot-blast pipe (7) and mix cold wind mechanism (6).

2. The energy-saving foamed ceramic plate tunnel kiln cooling system according to claim 1, wherein the cooling device group I (1) is provided with stainless steel cooling bellows at the top and side walls of the kiln, natural air is sucked into the bellows for heat exchange and then is combusted by burners, and products are cooled in an indirect cooling mode.

3. The energy-saving foamed ceramic plate tunnel kiln cooling system as claimed in claim 1, wherein the cooling device group II (2) is provided with a cooling wall in the kiln wall, natural wind is sucked into the cooling wall and is changed into hot wind to be burned by a burner for combustion supporting, and products are cooled in an indirect cooling mode.

4. The cooling system of the energy-saving foamed ceramic plate tunnel kiln according to claim 1, wherein the heat extraction pipes (7) of the cooling device III (3) and the cooling device IV (4) are connected with the inlet of a fan (9), the air inlet pipe (8) is connected with the outlet of the fan (9), hot air extracted from the flue of the furnace body wall by the fan (9) reenters into a coil pipe and is uniformly injected into the furnace at multiple points, heat exchange is directly performed between the product and the circulating hot air flow, the product is slowly cooled, the heat extraction pipe (7) at the inlet of the fan (9) is provided with a cold air mixing mechanism (6) for adjusting the temperature of the air flow, the temperatures of the cooling areas of the cooling device III (3) and the cooling device IV (4) are different, and more groups can be arranged according to the length of the tunnel kiln according to temperature gradients.

5. The energy-saving foamed ceramic plate tunnel kiln cooling system as claimed in claim 1, wherein the pipeline connected with the cooling system (5) is provided with valves and control components.