A rock wool production kiln, equipment and process

Abstract

The present invention provides a rock wool production kiln, equipment and process. The rock wool production kiln includes a furnace body, a water-cooling jacket, a screw feeder, a vibrating feeder and a burner. The outer wall of the furnace body is provided with a water-cooling jacket, and the burner is installed at the bottom of the furnace body or on the side wall of the lower part of the furnace body. Adopting the submerged combustion method, the fuel and the combustion-supporting gas are fully mixed and burned with the raw materials, and the fuel is directly injected into the interior of the raw materials, improving the heat transfer mode and generating a strong convective stirring effect on the melt, with extremely high energy utilization rate, more than 3 times that of the traditional kiln; the NOx nitrogen oxide emission is low, 2 times lower than that of the traditional kiln; the volume is small, the furnace area is designed to be 2-6 m², it is convenient to start and stop, it can melt large pieces of materials or powders, and the discharge capacity can reach 30-100 t / d; adopting a water-cooled furnace body, the kiln has a long service life, greatly reducing the use of refractory materials, and the dust emission is reduced by 10 times; there is no need for a CO treatment system, saving a large amount of equipment investment and operation costs.

Description

Technical Field

[0001] The present invention relates to the technical field of rock wool production, and in particular to a rock wool production kiln, equipment and process. Background Art

[0002] At present, rock wool production mainly relies on cupolas, using coke and ore raw materials. Not only is it not environmentally friendly, but also due to its dependence on carbon, it is contrary to the concept of low-carbon, environmentally friendly and green development. At the Copenhagen World Climate Conference, the Chinese government solemnly made a commitment to the world that "by 2020, carbon dioxide emissions per unit of GDP will be reduced by 40%-45% compared with 2005." A new, efficient and environmentally friendly rock wool production technology is urgently needed. Although there are some carbon-free rock wool production processes that use oxygen-enriched, pure oxygen and natural gas combustion methods, due to the barrier effect of rock wool on the penetration of radiant heat, the effect of high-temperature pure oxygen flame radiation on the melting production of large amounts of glass is not good. Summary of the invention

[0003] In order to overcome the above-mentioned deficiencies of the prior art, the object of the present invention is to provide a rock wool production kiln, equipment and process.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention to solve the technical problem is: a rock wool production kiln, comprising:

[0005] A furnace body, wherein the outer wall of the furnace body is provided with a water cooling jacket;

[0006] A screw feeder is installed at a first feeding port of the furnace body, wherein the first feeding port is located below the liquid level of the melt in the furnace body during production;

[0007] A vibrating feeder installed at the second feeding port of the furnace body;

[0008] A burner, wherein the burner is installed at the bottom of the furnace body or the lower side wall of the furnace body, and the nozzle of the burner is immersed below the melt level in the furnace body;

[0009] A flue, which is used to discharge waste gas in the furnace during production and is arranged at the upper part of the furnace;

[0010] The material channel is used to discharge the melt in the furnace.

[0011] Compared with the prior art, the present invention adopts an immersion combustion method. The fuel and the combustion-supporting gas are fully mixed with the raw materials for combustion. The fuel is directly sprayed into the raw materials to generate flames and combustion inside the raw materials to melt the raw materials. The burner is placed at the bottom of the kiln, which improves the heat transfer method and produces a violent convection stirring effect on the melt. The energy utilization rate is extremely high, which is 3 times higher than that of traditional kilns; the NOx nitrogen oxide emissions are low, which is 2 times lower than that of traditional kilns; the volume is small, and the kiln area is designed to be 2-6m 2It is easy to start and stop, can melt large pieces of materials or powder, and the discharge capacity can reach 30-100t / d; it adopts water-cooled furnace body, long kiln life, greatly reduces the use of refractory materials, and reduces dust emissions by 10 times; no CO treatment system is required, saving a lot of equipment investment and operating costs.

[0012] Furthermore, the burner comprises:

[0013] The burner body comprises a nozzle panel, a gas chamber and a combustion-supporting gas chamber, wherein a plurality of nozzles are evenly arranged on the nozzle panel, the gas chamber and the combustion-supporting gas chamber are respectively distributed on both sides below the nozzle panel, and the nozzle panel is provided with air guide holes connected from the gas chamber and the combustion-supporting gas chamber to the nozzles;

[0014] A cooling water channel surrounds the burner body, and a circle of half partitions are provided in the cooling water channel. The water inlet and outlet of the cooling water channel are respectively located on both sides of the half partition, and the water inlet and outlet are respectively distributed at opposite ends of the burner body.

[0015] By adopting the above preferred solution, the heated water flow generates heat through the side wall to preheat the fuel gas and combustion-supporting air, thereby increasing the flame temperature and stability and reducing heat loss.

[0016] Furthermore, the nozzle is a concave hemispherical groove, the air guide hole connected to the fuel gas chamber and the air guide hole connected to the combustion-supporting gas chamber are both in a straight line, and the two air guide holes are arranged tangent to the nozzle, and the openings of the two air guide holes on the inner wall of the nozzle are arranged diagonally.

[0017] By adopting the above preferred solution, at each nozzle, the fuel gas and the combustion-supporting gas are injected through relative diagonal tangents to generate strong vortex mixing, thereby causing the flame to rotate upward and improving the upward penetration of the flame.

[0018] Furthermore, the bottom area of ​​the furnace is less than 4m 2 When the number of burners is 2, the bottom area of ​​the furnace is 2m 2 Area, every additional 2m 2 area, the number of burners is increased by 1.

[0019] By adopting the above preferred solution, a reasonable number of burners are used to ensure combustion efficiency, prevent excessive combustion from generating excessive smoke, and effectively reduce emissions.

[0020] Furthermore, the height of the first feeding port from the bottom of the furnace body is 15%-50% of the liquid level of the melt in the furnace body during production.

[0021] The above preferred solution is adopted to ensure smooth and orderly melting production during normal production, and reduce the fluctuation of the combustion and melting process caused by adding materials into the small space kiln.

[0022] Furthermore, the flue has an inclined portion at the top of the furnace body, and a temperature sensor is provided at the upper part of the flue.

[0023] By adopting the above preferred solution, the inclined portion can prevent the heat exchanger from being blocked, and the temperature sensor is arranged at the upper part of the flue, which can more reliably detect the temperature in the kiln.

[0024] Furthermore, the burner is provided with an ignition rod, and the ignition rod is provided with a flame detector.

[0025] By adopting the above preferred solution, the burner is provided with an ignition rod and flame detection, and the ignition step can respectively detect its own flame in real time.

[0026] Furthermore, an openable and closable furnace door is provided on the upper part of the side wall of the furnace body, and an ignition gun mechanism is provided corresponding to the position of the furnace door. The ignition gun mechanism includes an ignition gun, a telescopic mechanism and a swing mechanism. The telescopic mechanism drives the ignition gun to telescope and move, and the swing mechanism drives the telescopic mechanism and the ignition gun to swing together.

[0027] By adopting the above preferred solution, the burner structure can be simplified, and ignition can be performed by a single external ignition gun, thereby saving the kiln configuration cost.

[0028] A rock wool production device comprises a rock wool production kiln, a fiberizer, a cotton collector and a curing furnace. The material channel of the rock wool production kiln is connected to the fiberizer. The fibers blown by the fiberizer are pressed into rock wool fiber sheets through the cotton collector, and then dried and cured into rock wool in the curing furnace.

[0029] Furthermore, it also includes a heat exchanger, the flue of the rock wool production kiln is connected to the heat exchanger and the flue gas treatment system, the heat circulation pipeline of the heat exchanger is also connected to the curing furnace; the heat circulation pipeline of the heat exchanger is also connected to the raw material bin to be melted; the heat circulation pipeline of the heat exchanger is also connected to the gas supply pipeline and the combustion-supporting gas supply pipeline of the burner.

[0030] By adopting the above preferred scheme and integrating the submerged combustion kiln, the rock wool production efficiency is high and the quality is stable. The heat exchanger fully and comprehensively reuses the flue gas heat, which saves energy consumption, reduces production costs, and reduces pollution emissions.

[0031] A rock wool production process comprises the following steps:

[0032] Batching steps: weigh the raw materials according to the recipe, mix them well, and add them to the silos of the screw feeder and vibrating feeder;

[0033] Ignition step: Ignite the burner through the ignition system to make the kiln reach the set temperature;

[0034] Feeding steps: First, feed the material through the screw feeder and the vibrating feeder at the same time. When the melt level in the furnace reaches the set value, turn off the vibrating feeder and adjust the feeding amount through the screw feeder to keep the feeding and discharging balanced and keep the melt in the furnace within the set liquid level range;

[0035] High temperature melting temperature control steps: by adjusting the flow ratio of the burner gas and the combustion-supporting gas, the furnace temperature is controlled to be maintained within the range of 1100-1600℃;

[0036] Fibering step: blowing into fibers through a fiberizer;

[0037] Cotton collecting step: the fibers are pressed into rock wool fibers of a certain thickness through a cotton collector;

[0038] Curing step: drying and curing rock wool fibers of a certain thickness through a curing furnace;

[0039] Slicing step: Slice and package the solidified rock wool according to the required specifications to make finished rock wool products.

[0040] By adopting the above-mentioned preferred scheme, with the help of submerged combustion method, the flow ratio of the burner's fuel gas and the combustion-supporting gas adopts double cross-limiting control to ensure that the air-fuel ratio remains stable during flow adjustment, the flow regulation does not fluctuate, the rock wool quality is more stable, and the production efficiency is high.

[0041] Further, the ignition step includes the following steps:

[0042] Step A1: The ignition gun is pre-installed on the external mounting bracket of the kiln, and the mounting bracket is equipped with a telescopic mechanism and a swing mechanism; the ignition gun is placed close to the upper part of each burner in turn to ignite the burner;

[0043] Step A2: After the last burner is ignited, stay on the upper part of the burner, turn off the natural gas of the ignition gun, keep the outflow of the combustion-supporting gas of the ignition gun, and continuously detect the flame through the flame detector on the ignition gun. If the flame is extinguished, ignite it again;

[0044] Step A3: When the kiln temperature reaches above 850°C, turn off the combustion-supporting gas of the ignition gun, exit the kiln, and close the furnace door.

[0045] By adopting the above preferred solution, the burner is ignited by an external ignition gun, and when the kiln needs to be kept warm urgently, the ignition gun can be started at any time to keep the kiln warm.

[0046] Further, the ignition step includes the following steps:

[0047] Step B1: The burner is equipped with an ignition rod, which has a flame detection function; each burner is ignited by its own ignition rod, and the flame is continuously detected. If the flame goes out, it is ignited again;

[0048] Step B2: When the kiln temperature reaches above 850°C, the flame detection function is turned on to detect the temperature of the kiln through the temperature sensor.

[0049] By adopting the above preferred solution, each burner is equipped with its own ignition rod, which improves the stability and reliability of ignition and can detect the flame of each burner in real time. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0051] Figure 1 It is a structural schematic diagram of an implementation mode of the present invention;

[0052] Figure 2 It is a structural schematic diagram of an embodiment of a burner of the present invention;

[0053] Figure 3 yes Figure 2 AA section structure diagram;

[0054] Figure 4 It is a process flow chart of rock wool production of the present invention.

[0055] The numbers and letters in the figure represent the names of the corresponding parts:

[0056] 1-furnace body; 11-water cooling jacket; 12-first charging port; 13-second charging port; 14-flue; 15-material channel; 2-burner; 21-burner body; 211-nozzle panel; 212-nozzle; 213-air guide hole; 214-fuel gas chamber; 215-combustion-supporting gas chamber; 22-cooling water channel; 221-water inlet; 222-water outlet; 223-semi-partition. DETAILED DESCRIPTION

[0057] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0058] like Figure 1 As shown, one embodiment of the present invention is: a rock wool production kiln, comprising:

[0059] A furnace body 1, the outer wall of the furnace body 1 is provided with a water cooling jacket 11;

[0060] A screw feeder is installed at the first feeding port 12 of the furnace body 1, and the first feeding port 12 is located below the liquid level of the melt in the furnace body during production;

[0061] A vibrating feeder, which is installed at the second feeding port 13 of the furnace body 1;

[0062] Burner 2, burner 2 is installed at the bottom of the furnace body or the lower side wall of the furnace body, and the nozzle of burner 2 is immersed below the melt level in the furnace body;

[0063] A flue 14, which is used to discharge waste gas in the furnace during production, and is arranged at the upper part of the furnace body 1;

[0064] The material channel 15 is used for discharging the melt in the furnace body. The material channel is made of electric fused bricks, and gate bricks are used to adjust the discharging speed.

[0065] The beneficial effects of the above technical solution are as follows: the fuel and combustion-supporting gas are fully mixed with the raw materials and burned by the submerged combustion method; the fuel is directly sprayed into the raw materials to generate flames and combustion inside the raw materials to melt the raw materials; the burner is placed at the bottom of the kiln, which improves the heat transfer method and produces a violent convection stirring effect on the melt; the energy utilization rate is extremely high, which is 3 times higher than that of traditional kilns; the NOx nitrogen oxide emission is low, which is 2 times lower than that of traditional kilns; the volume is small, and the kiln area is designed to be 2-6m 2 It is easy to start and stop, can melt large pieces of materials or powder, and the discharge capacity can reach 30-100t / d; it adopts water-cooled furnace body, long kiln life, greatly reduces the use of refractory materials, and reduces dust emissions by 10 times; no CO treatment system is required, saving a lot of equipment investment and operating costs.

[0066] like Figure 2 , 3As shown, in other embodiments of the present invention, the burner 2 includes: a burner body 21, which includes a nozzle panel 211, a gas chamber 214 and a combustion-supporting gas chamber 215, a plurality of nozzles 212 are evenly arranged on the nozzle panel 211, the gas chamber 214 and the combustion-supporting gas chamber 215 are respectively distributed on both sides below the nozzle panel 211, and the nozzle panel 211 is provided with air guide holes 213 respectively connected from the gas chamber 214 and the combustion-supporting gas chamber 215 to the nozzle 212; a cooling water channel 22, which surrounds the burner body 21, a circle of half-spacers 223 are provided in the cooling water channel 22, the water inlet 221 and the water outlet 222 of the cooling water channel 22 are respectively located on both sides of the half-spacer 223, and the water inlet 221 and the water outlet 222 are respectively distributed at opposite ends of the burner body 21. The combustion-supporting gas of the burner can be air, preheated air, oxygen-enriched air or oxygen. The beneficial effect of adopting the above technical solution is that the heated water flow generates heat through the side wall to preheat the fuel gas and combustion-supporting air, thereby increasing the flame temperature and stability and reducing heat loss.

[0067] like Figure 2 , 3 As shown, in some other embodiments of the present invention, the nozzle 212 is a concave hemispherical groove, the gas guide hole 213 connected to the gas chamber 214 and the gas guide hole 213 connected to the combustion-supporting gas chamber 215 are both in a straight line, and the two gas guide holes 213 are arranged tangent to the nozzle 212, and the openings of the two gas guide holes 213 on the inner wall of the nozzle are arranged diagonally. The beneficial effect of adopting the above technical solution is that at each nozzle, the gas and the combustion-supporting gas are injected through the relative diagonal tangents, generating a strong vortex mixing, thereby causing the flame to rotate upward and improving the upward penetration of the flame.

[0068] In some other embodiments of the present invention, the burner has an outer dimension of 150 mm (W) × 600 mm (L), and the bottom area of ​​the furnace body is less than 4 m 2 When the number of burners is 2, the bottom area of ​​the furnace is 2m 2 Area, every additional 2m 2 The area, the number of the burners is increased by 1. The beneficial effect of adopting the above technical solution is: adopting a reasonable number of burners to ensure combustion efficiency, and also preventing excessive combustion from generating excessive smoke, thereby effectively reducing emissions.

[0069] In some other embodiments of the present invention, in order to improve the heating efficiency, burners are installed at the bottom of the furnace body and the lower side wall of the furnace body at the same time, with an area of ​​4m 2Taking the kiln as an example, the approximate size of the kiln is 2400mm long × 1650mm wide × 2000mm high. During normal production, the melt level in the furnace is about 1000mm. Two burners are installed on the bottom of the furnace body, and another burner is installed on the lower part of the side wall opposite to the material channel. This forms a double heat convection stirring conduction in the vertical and horizontal directions. The thermal impact force of the burner on the side wall also prompts the melt to flow to the end of the material channel, reducing the residual melt circulating in the furnace and improving production efficiency.

[0070] In other embodiments of the present invention, the height of the first feeding port 12 from the bottom of the furnace body is 15%-50% of the liquid level of the melt in the furnace body during production. The beneficial effect of adopting the above technical solution is: ensuring smooth and orderly melting production during normal production, reducing the fluctuation of the combustion and melting process caused by feeding into a small space kiln.

[0071] In some other embodiments of the present invention, the flue has an inclined portion at the top of the furnace body, and a temperature sensor is provided on the upper part of the flue. The beneficial effect of adopting the above technical solution is that the inclined portion can prevent the heat exchanger from being blocked, and the temperature sensor is provided on the upper part of the flue, which can more reliably detect the temperature in the kiln.

[0072] In some other embodiments of the present invention, the burner is provided with an ignition rod, and the ignition rod is provided with a flame detector. The beneficial effect of adopting the above technical solution is: the burner is provided with an ignition rod and a flame detector, and the ignition step can respectively detect its own flame in real time.

[0073] In some other embodiments of the present invention, an openable and closable furnace door is provided on the upper part of the side wall of the furnace body, and an ignition gun mechanism is provided corresponding to the furnace door. The ignition gun mechanism includes an ignition gun, a telescopic mechanism and a swing mechanism. The telescopic mechanism drives the ignition gun to telescope and move, and the swing mechanism drives the telescopic mechanism and the ignition gun to swing together. The beneficial effect of adopting the above technical solution is that the burner structure can be simplified, ignition is performed by a single external ignition gun, and the kiln configuration cost is saved.

[0074] A rock wool production device comprises a rock wool production kiln, a fiberizer, a cotton collector and a curing furnace. The material channel of the rock wool production kiln is connected to the fiberizer. The fibers blown by the fiberizer are pressed into rock wool fiber sheets through the cotton collector, and then dried and cured into rock wool in the curing furnace.

[0075] In some other embodiments of the present invention, a heat exchanger is also included, and the flue of the rock wool production kiln is connected to the heat exchanger and the flue gas treatment system, and the heat circulation pipeline of the heat exchanger is also connected to the curing furnace; the heat circulation pipeline of the heat exchanger is also connected to the raw material warehouse to be melted; the heat circulation pipeline of the heat exchanger is also connected to the gas supply pipeline and the combustion-supporting gas supply pipeline of the burner. The beneficial effects of adopting the above technical solution are: the combined immersion combustion kiln has high rock wool production efficiency and stable quality, and the heat exchanger fully and comprehensively reuses the flue gas heat, saving energy consumption, reducing production costs, and reducing pollution emissions.

[0076] like Figure 4 As shown, a rock wool production process comprises the following steps:

[0077] Batching steps: weigh the raw materials according to the recipe, mix them well, and add them to the silos of the screw feeder and vibrating feeder;

[0078] Ignition step: Ignite the burner through the ignition system to make the kiln reach the set temperature;

[0079] Feeding steps: First, feed the material through the screw feeder and the vibrating feeder at the same time. When the melt level in the furnace reaches the set value, turn off the vibrating feeder and adjust the feeding amount through the screw feeder to keep the feeding and discharging balanced and keep the melt in the furnace within the set liquid level range;

[0080] High temperature melting temperature control steps: by adjusting the flow ratio of the burner gas and the combustion-supporting gas, the furnace temperature is controlled to be maintained within the range of 1100-1600℃;

[0081] Fibering step: blowing into fibers through a fiberizer;

[0082] Cotton collecting step: the fibers are pressed into rock wool fibers of a certain thickness through a cotton collector;

[0083] Curing step: drying and curing rock wool fibers of a certain thickness through a curing furnace;

[0084] Slicing step: Slice and package the solidified rock wool according to the required specifications to make finished rock wool products.

[0085] The beneficial effects of adopting the above technical solution are: with the help of the submerged combustion method, the flow ratio of the burner's fuel gas and the combustion-supporting gas is controlled by double cross-limiting control, ensuring that the air-fuel ratio remains stable during flow adjustment, the flow regulation does not fluctuate, the rock wool quality is more stable, and the production efficiency is high.

[0086] In some other embodiments of the present invention, the ignition step includes the following steps:

[0087] Step A1: The ignition gun is pre-installed on the external mounting bracket of the kiln, and the mounting bracket is equipped with a telescopic mechanism and a swing mechanism; the ignition gun is placed close to the upper part of each burner in turn to ignite the burner;

[0088] Step A2: After the last burner is ignited, stay on the upper part of the burner, turn off the natural gas of the ignition gun, keep the outflow of the combustion-supporting gas of the ignition gun, and continuously detect the flame through the flame detector on the ignition gun. If the flame is extinguished, ignite it again;

[0089] Step A3: When the kiln temperature reaches above 850°C, turn off the combustion-supporting gas of the ignition gun, exit the kiln, and close the furnace door.

[0090] The beneficial effect of adopting the above technical solution is: the burner is ignited by an external ignition gun, and when the kiln needs to be kept warm urgently, the ignition gun can be started at any time to keep the kiln warm.

[0091] In some other embodiments of the present invention, the ignition step includes the following steps:

[0092] Step B1: The burner is equipped with an ignition rod, which has a flame detection function; each burner is ignited by its own ignition rod, and the flame is continuously detected. If the flame goes out, it is ignited again;

[0093] Step B2: When the kiln temperature reaches above 850°C, the flame detection function is turned on to detect the temperature of the kiln through the temperature sensor.

[0094] The beneficial effects of adopting the above technical solution are: each burner is equipped with its own ignition rod, which improves the stability and reliability of ignition and can detect the flame of each burner in real time.

[0095] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable ordinary technicians in the field to understand the content of the present invention and implement it. They cannot be used to limit the protection scope of the present invention. All equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A rock wool production kiln, characterized in that: include: A furnace body, wherein the outer wall of the furnace body is provided with a water cooling jacket; A screw feeder is installed at a first feeding port of the furnace body, wherein the first feeding port is located below the liquid level of the melt in the furnace body during production; A vibrating feeder installed at the second feeding port of the furnace body; A burner, wherein the burner is installed at the bottom of the furnace body or the lower side wall of the furnace body, and the nozzle of the burner is immersed below the melt level in the furnace body; A flue, which is used to discharge waste gas from the furnace during production and is arranged at the upper part of the furnace; A material channel, which is used to discharge the melt in the furnace; The burner comprises: The burner body comprises a nozzle panel, a gas chamber and a combustion-supporting gas chamber, wherein a plurality of nozzles are evenly arranged on the nozzle panel, the gas chamber and the combustion-supporting gas chamber are respectively distributed on both sides below the nozzle panel, and the nozzle panel is provided with air guide holes connected from the gas chamber and the combustion-supporting gas chamber to the nozzles; A cooling water channel, which surrounds the burner body, wherein a circle of half-spacers is arranged in the cooling water channel, wherein a water inlet and a water outlet of the cooling water channel are respectively located on both sides of the half-spacers, and the water inlet and the water outlet are respectively distributed at two opposite ends of the burner body; The nozzle is a concave hemispherical groove, and the air guide hole connected to the fuel gas chamber and the air guide hole connected to the combustion-supporting gas chamber are both straight, and the two air guide holes are arranged tangent to the nozzle, and the openings of the two air guide holes on the inner wall of the nozzle are arranged diagonally.

2. The rock wool production kiln according to claim 1, characterized in that: The bottom area of ​​the furnace is less than 4m 2 When the number of burners is 2, the bottom area of ​​the furnace is 2m 2 Area, every additional 2m 2 area, the number of burners is increased by 1.

3. The rock wool production kiln according to claim 1, characterized in that: The height of the first feeding port from the bottom of the furnace body is 15%-50% of the liquid level of the melt in the furnace body during production.

4. The rock wool production kiln according to claim 1, characterized in that: The flue is provided with an inclined portion at the top of the furnace body, and a temperature sensor is arranged at the upper part of the flue.

5. The rock wool production kiln according to claim 1, characterized in that: An ignition rod is arranged on the burner, and a flame detector is arranged on the ignition rod.

6. The rock wool production kiln according to claim 1, characterized in that: An openable and closable furnace door is provided on the upper part of the side wall of the furnace body, and an ignition gun mechanism is provided corresponding to the position of the furnace door. The ignition gun mechanism includes an ignition gun, a telescopic mechanism and a swing mechanism. The telescopic mechanism drives the ignition gun to telescope and move, and the swing mechanism drives the telescopic mechanism and the ignition gun to swing together.

7. A rock wool production equipment, characterized in that: It comprises the rock wool production kiln, fiberizer, cotton collector and curing furnace as described in any one of claims 1-6, the material channel of the rock wool production kiln is connected to the fiberizer, the fibers blown by the fiberizer are pressed into rock wool fiber sheets through the cotton collector, and then dried and cured into rock wool in the curing furnace.

8. The rock wool production equipment according to claim 7, characterized in that: It also includes a heat exchanger. The flue of the rock wool production kiln is connected to the heat exchanger and the flue gas treatment system. The heat circulation pipeline of the heat exchanger is also connected to the curing furnace; the heat circulation pipeline of the heat exchanger is also connected to the raw material bin to be melted; the heat circulation pipeline of the heat exchanger is also connected to the gas supply pipeline and the combustion-supporting gas supply pipeline of the burner.

9. A rock wool production process, characterized in that: It is based on the rock wool production equipment according to claim 7 or 8, and comprises the following steps: Batching steps: weigh the raw materials according to the recipe, mix them well, and add them to the silos of the screw feeder and vibrating feeder; Ignition step: Ignite the burner through the ignition system to make the kiln reach the set temperature; Feeding steps: First, feed the material through the screw feeder and the vibrating feeder at the same time. When the melt level in the furnace reaches the set value, turn off the vibrating feeder and adjust the feeding amount through the screw feeder to keep the feeding and discharging balanced and keep the melt in the furnace within the set liquid level range; High temperature melting temperature control steps: by adjusting the flow ratio of the burner gas and the combustion-supporting gas, the furnace temperature is controlled to be maintained within the range of 1100-1600℃; Fibering step: blowing into fibers through a fiberizer; Cotton collecting step: the fibers are pressed into rock wool fibers of a certain thickness through a cotton collector; Curing step: drying and curing rock wool fibers of a certain thickness through a curing furnace; Slicing step: Slice and package the solidified rock wool according to the required specifications to make finished rock wool products.

10. The rock wool production process according to claim 9, characterized in that: The ignition step comprises the following steps, Step A1: The ignition gun is pre-installed on the external mounting bracket of the kiln, and the mounting bracket is equipped with a telescopic mechanism and a swing mechanism; the ignition gun is placed close to the upper part of each burner in turn to ignite the burner; Step A2: After the last burner is ignited, stay on the upper part of the burner, turn off the natural gas of the ignition gun, keep the outflow of the combustion-supporting gas of the ignition gun, and continuously detect the flame through the flame detector on the ignition gun. If the flame is extinguished, ignite it again; Step A3: When the kiln temperature reaches above 850°C, turn off the combustion-supporting gas of the ignition gun, exit the kiln, and close the furnace door.

11. The rock wool production process according to claim 9, characterized in that: The ignition step comprises the following steps, Step B1: The burner is equipped with an ignition rod, which has a flame detection function; each burner is ignited by its own ignition rod, and the flame is continuously detected. If the flame goes out, it is ignited again; Step B2: When the kiln temperature reaches above 850°C, the flame detection function is turned on to detect the temperature of the kiln through the temperature sensor.

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