阅读说明：本技术 一种用于岩棉生产的热风成纤系统 (Hot air fiber forming system for rock wool production ) 是由 张志刚 郑剑锋 刘志恒 褚旭东 孙刚 陈鹏 纪飞 李玉山 于 2019-10-21 设计创作，主要内容包括：一种用于岩棉生产的热风成纤系统,包括高温热风成纤四辊离心机,还包括并列排放的液-气混合中心喷胶装置、离心辊冷却水系统、油气润滑系统、隔热冷却系统和高温高速热风系统,液-气混合中心喷胶装置的输出端通过管路与中心喷胶进口连通,离心辊冷却水系统的输出端通过管路与冷却水进口连通,油气润滑系统通过管路与主轴内部的空腔连通,隔热冷却系统通过管路与隔热冷却水进口连通,高温高速热风系统通过管路与吹离风口连通；还包括施胶系统,施胶系统通过管路分别连通液-气混合中心喷胶装置和外围施胶装置连通,外围施胶装置连接喷头,在离心辊的外围喷胶,成雾态胶流。成纤纤维直径小、渣球含量少,成纤率高,并且更加节能环保。(A hot air fiber forming system for rock wool production comprises a high-temperature hot air fiber forming four-roller centrifugal machine, a liquid-gas mixing center glue spraying device, a centrifugal roller cooling water system, an oil-gas lubricating system, a heat insulation cooling system and a high-temperature high-speed hot air system which are arranged in parallel, wherein the output end of the liquid-gas mixing center glue spraying device is communicated with a center glue spraying inlet through a pipeline; the glue spraying device is characterized by further comprising a glue spraying system, the glue spraying system is respectively communicated with the liquid-gas mixing center glue spraying device and the peripheral glue spraying device through pipelines, the peripheral glue spraying device is connected with the spray head, glue is sprayed on the periphery of the centrifugal roller, and the glue flows in a fog state. The diameter of the fiber forming fiber is small, the slag ball content is low, the fiber forming rate is high, and the energy conservation and environmental protection are realized.)

1. The utility model provides a hot-blast fiberizing system for rock wool production which characterized in that: including hot-blast fiberizing four-roller centrifuge (2), the structure of hot-blast fiberizing four-roller centrifuge (2) of high temperature is: including shell (212), four main shafts (204) that shell (212) inside parallel interval set up all install centrifugal roller (208) on every main shaft (204), and the installation form of every centrifugal roller (208) is the same, takes one of them centrifugal roller (208) as an example, and its specific mounting structure is: a centrifugal roller (208) is mounted on the main shaft (204) through a bearing (207), a cooling water jacket (206) is arranged outside the centrifugal roller (208), and cooling water (205) is introduced into the cooling water jacket (206); a central glue spraying inlet (201) is formed in the center of one end of the main shaft (204), a cooling water inlet (202) is formed in the lower portion of the port, a central glue spraying compressed air inlet (203) is formed in the upper portion of the port, a blowing-off air port (210) and a heat insulation cooling water inlet (211) are further formed in the bottom of the cooling water jacket (206), and a high-temperature high-speed airflow outlet (209) is formed in the end face of the centrifugal roller (208); the centrifugal roller glue spraying device is characterized by further comprising a liquid-gas mixing center glue spraying device (7), a centrifugal roller cooling water system (6), an oil-gas lubricating system (5), a heat insulation cooling system (4) and a high-temperature high-speed hot air system (3) which are arranged in parallel, wherein the output end of the liquid-gas mixing center glue spraying device (7) is communicated with a center glue spraying inlet (201) through a pipeline, the output end of the centrifugal roller cooling water system (6) is communicated with a cooling water inlet (203) through a pipeline, the oil-gas lubricating system (5) is communicated with a cavity (213) in the main shaft (204) through a pipeline, the heat insulation cooling system (4) is communicated with a heat insulation cooling water inlet (211) through a pipeline, and the high-temperature high-speed hot air system (3) is communicated with a blow-off; the glue applying system (8) is respectively communicated with the liquid-gas mixing center glue spraying device (7) and the peripheral glue applying device (9) through pipelines, the peripheral glue applying device (9) is connected with a spray head, glue is sprayed on the periphery of the centrifugal roller (208) to form mist glue flow; also included is a high temperature stream (1) interfacing with the roll face of the centrifugal roll (208).

2. The hot air fiber forming system for rock wool production of claim 1, wherein: the high-temperature and high-speed hot air system (3) has the structure that: including high pressure positive blower (301), the output of high pressure positive blower (301) passes through pipe connection gas hot-blast furnace (302), gas hot-blast furnace (302) are through gas burning and controlling means (303) control, the output of gas hot-blast furnace (302) is connected to blow-off wind gap (210) through the heat preservation pipeline.

3. The hot air fiber forming system for rock wool production as claimed in claim 2, wherein: the air volume adopted by the high-pressure fan (301) is 15000m³The wind pressure is 35 kpa.

4. The hot air fiber forming system for rock wool production as claimed in claim 2, wherein: the gas combustion and control device (303) controls the temperature of hot air to be 200-800 ℃.

5. the hot air fiber forming system for rock wool production of claim 1, wherein: the structure of the heat insulation cooling system (4) is as follows: the heat-insulation cooling water system comprises a first water pump (401), wherein the output end of the first water pump (401) is connected to a heat-insulation cooling water inlet (211) through a pipeline, a first throttling valve (402) is installed on the pipeline, and a recovery box (403) corresponding to the heat-insulation cooling water inlet (211) is further arranged at one end of a cooling water jacket (206).

6. the hot air fiber forming system for rock wool production of claim 1, wherein: the oil-gas lubrication system (5) delivers lubricating oil and 4-7kg/cm²Compressed air enters a main shaft (204) of the high-temperature hot air fiber-forming four-roller centrifuge (2), lubricating oil lubricates a bearing (207) of the main shaft (204), the compressed air forms positive pressure in a cavity (213) in the main shaft (204), passes through an air barrier formed by high-speed rotation of the bearing (207) and is discharged out of the cavity through a labyrinth seal (214).

7. The hot air fiber forming system for rock wool production of claim 1, wherein: the structure of the centrifugal roller cooling water system (6) is as follows: a second water pump (601) is included, and the output end of the second water pump (601) is connected to the cooling water inlet (203) through a second throttle valve (602).

8. The hot air fiber forming system for rock wool production of claim 7, wherein: the second throttle valve (602) controls the flow of water to a flow rate of 50-300 litres/hour.

9. The hot air fiber forming system for rock wool production of claim 1, wherein: the structure of the sizing system (8) is as follows: the glue applying device comprises a glue pump (801), wherein the output end of the glue pump (801) is divided into two paths, one path is communicated with a liquid-gas mixing center glue spraying device (7) through a third throttling valve (802), and the other path is communicated with a peripheral glue applying device (9) through a fourth throttling valve (803).

Technical Field

The invention relates to the technical field of rock wool fiber forming process equipment, in particular to a hot air fiber forming system for rock wool production.

Background

In the process flow of rock wool production, a rock wool fiber forming system is a key process for producing and forming fibers by rock wool, and the fiber forming system determines the fiber forming yield, the fiber diameter, the slag ball content, the fiber glue spraying uniformity and the like of rock wool production.

the fiber forming principle of rock wool production is as follows:

basalt is used as a main raw material and is melted at high temperature by a melting furnace. The melt flows are distributed into a ring shape after flowing onto the centrifugal roller, the ring-shaped melt is pressed to the outer edge of the roller under the action of centrifugal force, the thickness of the melt layer is reduced to a certain limit determined by the surface capacity of the melt, after that, the ring-shaped melt is broken and formed into a plurality of thin flows, then high-pressure air is sprayed to the outer edge of the centrifugal roller, the thin flows are blown by air flow to move forwards and be elongated into fibers, and simultaneously glue is sprayed on the fibers and is sent into a settling chamber.

The existing fiber forming technology:

The fiber forming process of the existing rock wool fiber forming system comprises the following steps: after the melt flow flows onto the centrifugal roller, the melt flow is broken under the action of centrifugal force to form a plurality of thin flows, and then the melt flow is blown to the outer edge of the centrifugal roller by using normal-temperature high-speed airflow to move forward and stretch into fibers, and meanwhile, glue is sprayed on the fibers. And depositing on a cotton collecting drum to form the resin cotton felt. Because the centrifugal roller needs cooling water to cool the roller surface, the melt is rapidly cooled on the centrifugal roller, and then the melt is rapidly cooled by blowing and pulling by normal-temperature high-speed airflow, so that the viscosity of the melt is rapidly increased. So that the diameter of the fiber is large, the slag balls are more, and the fiber forming rate is low.

Disclosure of Invention

The applicant provides a hot air fiber forming system for rock wool production aiming at the defects in the prior art, thereby effectively solving the defects caused by the prior normal temperature blowing-off wind rock wool fiber forming technology, ensuring that the fiber forming fiber has small diameter, less slag ball content and high fiber forming rate, and being more energy-saving and environment-friendly.

The technical scheme adopted by the invention is as follows:

the utility model provides a hot-blast fiber forming system for rock wool production, includes high temperature hot-blast fiber forming four-roller centrifuge, high temperature hot-blast fiber forming four-roller centrifuge's structure is: including the shell, four main shafts that the inside parallel interval of shell set up all install the centrifugal roller on every main shaft, and the mounting form of every centrifugal roller is the same to one of them centrifugal roller is taken as an example, and its specific mounting structure is: a centrifugal roller is mounted on the main shaft through a bearing, a cooling water jacket is arranged outside the centrifugal roller, and cooling water is introduced into the cooling water jacket; a central glue spraying inlet is formed in the central position of one end of the main shaft, a cooling water inlet is formed in the lower portion of the port, a central glue spraying compressed air inlet is formed in the upper portion of the port, a blowing-off air port and a heat insulation cooling water inlet are further formed in the bottom of the cooling water jacket, and a high-temperature high-speed airflow outlet is formed in the end face of the centrifugal roller; the centrifugal roller glue spraying device comprises a centrifugal roller cooling water system, an oil-gas lubricating system, a heat insulation cooling system and a high-temperature high-speed hot air system, wherein the centrifugal roller cooling water system is arranged in parallel with the centrifugal roller cooling water system; the glue spraying device is characterized by also comprising a glue applying system, wherein the glue applying system is respectively communicated with the liquid-gas mixing center glue spraying device and the peripheral glue applying device through pipelines, the peripheral glue applying device is connected with a spray head, and glue is sprayed on the periphery of the centrifugal roller to form a fog-state glue flow; also included is a high temperature stream interfacing the centrifugal roll surface.

The further technical scheme is as follows:

The structure of the high-temperature high-speed hot air system is as follows: the high-pressure air blower is characterized by comprising a high-pressure air blower, wherein the output end of the high-pressure air blower is connected with a gas hot blast stove through a pipeline, the gas hot blast stove is controlled by a gas combustion and control device, and the output end of the gas hot blast stove is connected to a blow-off air port through a heat insulation pipeline.

The air volume adopted by the high-pressure fan is 15000m³The wind pressure is 35 kpa.

the gas combustion and control device controls the temperature of hot air to be 200-800 ℃.

The structure of the heat insulation cooling system is as follows: the heat-insulation cooling water system comprises a first water pump, wherein the output end of the first water pump is connected to a heat-insulation cooling water inlet through a pipeline, a first throttling valve is installed on the pipeline, and a recovery box corresponding to the heat-insulation cooling water inlet is further arranged at one end of a cooling water jacket.

The oil-gas lubrication system delivers the lubricating oil and 4-7kg/cm²Compressed air enters a main shaft of the high-temperature hot air fiber-forming four-roller centrifugal machine, a bearing of the main shaft is lubricated by lubricating oil, positive pressure in a cavity in the main shaft is formed by the compressed air, the compressed air penetrates through an air barrier formed by high-speed rotation of the bearing and is discharged out of the cavity through labyrinth seal.

The structure of the centrifugal roller cooling water system is as follows: the water cooling system comprises a second water pump, wherein the output end of the second water pump is connected to a cooling water inlet through a second throttling valve.

The second throttle valve is controlled to control the water flow with the flow rate of 50-300 liters/hour.

The structure of the sizing system is as follows: the glue spraying device comprises a glue pump, wherein the output end of the glue pump is divided into two paths, one path is communicated with a liquid-gas mixing center glue spraying device through a third throttling valve, and the other path is communicated with a peripheral glue applying device through a fourth throttling valve.

The invention has the following beneficial effects:

The invention has compact and reasonable structure and convenient operation, and in the process of blowing off and stretching a plurality of strands of melt streams thrown out of the centrifugal roller by high-temperature airflow, the cooling speed of the melt streams is slowed down due to high temperature of the airflow, and the fiber is stretched to be more slender, so the fiber diameter is small, the generated slag balls are few, and the fiber forming rate is high.

Under the condition of a certain total glue applying amount, glue is sprayed from the outside and the inside of the fiber-forming cotton fiber simultaneously, the contact area of the glue and the cotton fiber is increased by about 100%, and therefore the glue applying uniformity is better.

The high-temperature high-speed airflow blowing-off fiber forming technology adopts the air quantity of 15000m³H, wind pressure of 35kpa and temperature of 200-800 ℃.

The centrifugal roller main shaft device of the high-temperature hot air fiber-forming four-roller centrifugal machine adopts water-cooling heat insulation protection.

The invention relates to a positive-pressure oil-gas lubricating, cooling and dustproof technology in a cavity of a spindle device.

The invention adopts the compound technology of peripheral glue spraying and liquid-gas mixed central glue spraying.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

FIG. 2 is a schematic structural diagram of the high-temperature and high-speed hot air system of the present invention.

FIG. 3 is a schematic view of the structure of the insulated cooling system of the present invention.

FIG. 4 is a schematic structural diagram of the oil-air lubrication system of the present invention.

Fig. 5 is a schematic structural view of a cooling system for a centrifugal roll according to the present invention.

FIG. 6 is a schematic diagram of the construction of a sizing system of the present invention.

FIG. 7 is a cross-sectional view of a high temperature hot air fiberizing four roll centrifuge of the present invention.

FIG. 8 is a schematic structural view of a high-temperature hot-air fiber-forming four-roll centrifuge according to the present invention.

Wherein: 1. a high temperature stream; 2. a high-temperature hot air fiber-forming four-roller centrifuge; 3. a high temperature and high speed hot air system; 4. an insulated cooling system; 5. an oil-gas lubrication system; 6. a centrifugal roll cooling water system; 7. a liquid-gas mixing center glue spraying device; 8. a sizing system; 9. a peripheral sizing device;

201. A central glue spraying inlet; 202. a compressed air inlet with glue sprayed in the center; 203. a cooling water inlet; 204. a main shaft; 205. cooling water; 206. a cooling water jacket; 207. a bearing; 208. a centrifugal roll; 209. a high temperature high velocity gas stream outlet; 210. a blow-off tuyere; 211. a heat-insulating cooling water inlet; 212. a housing; 213. a cavity; 214. labyrinth sealing;

301. a high pressure fan; 302. a gas hot-blast stove; 303. a gas combustion and control device;

401. A first water pump; 402. a first throttle valve; 403. a recycling bin;

601. A second water pump; 602. a second throttle valve;

801. a glue pump; 802. a third throttle valve; 803. and a fourth throttle valve.

Detailed Description

The following describes embodiments of the present invention with reference to the drawings.

as shown in fig. 1-8, the hot air fiber-forming system for rock wool production of the embodiment comprises a high-temperature hot air fiber-forming four-roller centrifuge 2,

The high-temperature hot air fiber-forming four-roller centrifuge 2 has the structure that: including shell 212, four main shafts 204 that shell 212 inside parallel interval set up, all install centrifugal roller 208 on every main shaft 204, every centrifugal roller 208's installation form is the same, take one of them centrifugal roller 208 as an example, its specific mounting structure is: a centrifugal roller 208 is arranged on the main shaft 204 through a bearing 207, a cooling water jacket 206 is arranged outside the centrifugal roller 208, and cooling water 205 is introduced into the cooling water jacket 206;

A central glue spraying inlet 201 is arranged at the central position of one end of the main shaft 204, a cooling water inlet 202 is arranged at the lower part of the port, a central glue spraying compressed air inlet 203 is arranged at the upper part of the port, a blowing-off air port 210 and a heat insulation cooling water inlet 211 are further arranged at the bottom of the cooling water jacket 206, and a high-temperature high-speed airflow outlet 209 is arranged on the end surface of the centrifugal roller 208;

The centrifugal roller glue spraying device comprises a liquid-gas mixing center glue spraying device 7, a centrifugal roller cooling water system 6, an oil-gas lubricating system 5, a heat insulation cooling system 4 and a high-temperature high-speed hot air system 3 which are arranged in parallel, wherein the output end of the liquid-gas mixing center glue spraying device 7 is communicated with a center glue spraying inlet 201 through a pipeline, the output end of the centrifugal roller cooling water system 6 is communicated with a cooling water inlet 203 through a pipeline, the oil-gas lubricating system 5 is communicated with a cavity 213 in a main shaft 204 through a pipeline, the heat insulation cooling system 4 is communicated with a heat insulation cooling water inlet 211 through a pipeline, and the high-temperature high-speed hot air system 3 is communicated with a blow-;

the glue applying system 8 is respectively communicated with the liquid-gas mixing center glue spraying device 7 and the peripheral glue applying device 9 through pipelines, the peripheral glue applying device 9 is connected with a spray head, glue is sprayed on the periphery of the centrifugal roller 208, and a fog-state glue flow is formed;

Also included is a high temperature stream 1 interfacing the roll face of the centrifugal roll 208.

The structure of the high-temperature high-speed hot air system 3 is as follows: including high pressure positive blower 301, high pressure positive blower 301's output passes through pipeline connection gas hot-blast furnace 302, and gas hot-blast furnace 302 passes through gas burning and controlling means 303 control, and gas hot-blast furnace 302's output is connected to blow-off wind gap 210 through the heat preservation pipeline.

the air quantity adopted by the high-pressure fan 301 is 15000m³The wind pressure is 35 kpa.

the gas combustion and control device 303 controls the temperature of the hot air to be 200-800 ℃.

The structure of the heat insulation cooling system 4 is as follows: the heat-insulation cooling water circulating system comprises a first water pump 401, wherein the output end of the first water pump 401 is connected to a heat-insulation cooling water inlet 211 through a pipeline, a first throttling valve 402 is installed on the pipeline, and a recovery box 403 corresponding to the heat-insulation cooling water inlet 211 is further arranged at one end of a cooling water jacket 206.

The oil-gas lubrication system 5 delivers lubricating oil and 4-7kg/cm²The compressed air enters the main shaft 204 of the high-temperature hot air fiber-forming four-roller centrifuge 2, the lubricating oil lubricates the bearing 207 of the main shaft 204, the compressed air forms positive pressure in a cavity 213 in the main shaft 204, passes through an air barrier formed by high-speed rotation of the bearing 207 and is discharged out of the cavity through a labyrinth seal 214.

The centrifugal roller cooling water system 6 has the structure that: a second water pump 601 is included, and the output of the second water pump 601 is connected to the cooling water inlet 203 through a second throttle valve 602.

The second throttle valve 602 controls the flow of water to a flow rate of 50-300 liters/hour.

The structure of the glue application system 8 is: the glue spraying device comprises a glue pump 801, wherein the output end of the glue pump 801 is divided into two paths, one path is communicated with a liquid-gas mixing center glue spraying device 7 through a third throttle valve 802, and the other path is communicated with a peripheral glue applying device 9 through a fourth throttle valve 803.

The specific structure and function of the invention are as follows:

as shown in fig. 1: the high-temperature hot air fiber forming system mainly comprises a high-temperature hot air fiber forming four-roller centrifugal machine 2, a high-temperature high-speed hot air system 3, a heat insulation cooling system 4, an oil-gas lubricating system 5, a centrifugal roller cooling water system 6 and a sizing system 8.

In the high-temperature hot air fiber forming process, a high-temperature stream 1 flows onto the roller surfaces of four centrifugal rollers 208 of a high-temperature hot air fiber forming four-roller centrifuge 2, is broken under the action of centrifugal force and forms a plurality of strands of thin streams, then high-temperature high-speed air flow generated by a high-temperature high-speed hot air system 3 is blown to move forwards and be elongated into fibers, and meanwhile, glue is sprayed on the fibers through a peripheral glue applying device 9 and a liquid-gas mixing central glue spraying device 7 by a glue applying system 8. The glue-containing fibers are deposited on a collecting drum to form a resin cotton felt.

the specific structure of the high-temperature high-speed hot air system 3 is shown in fig. 2:

High pressure wind (air quantity 15000 m) generated by high pressure fan 301³H, wind pressure of 35kpa), heated into hot wind by a gas hot-blast stove 302, and conveyed to a blow-off tuyere 210 of the high-temperature hot-wind fiber-forming four-roll centrifuge 2 through a heat-insulating pipeline. The gas combustion and control device 303 controls the temperature of the hot air to be 200-800 ℃ so that the hot air meets the requirements of the fiber forming process.

The specific structure of the insulated cooling system 4 is shown in fig. 3: the main shaft 204 device of the centrifugal roller 208 of the high-temperature hot air fiber-forming four-roller centrifuge 2 is arranged in the cooling water jacket 206, the flow of the cooling water 205 is set through the first throttle valve 402, the cooling water flows into the cooling water jacket 206 from the heat insulation cooling water inlet 211, the temperature in the cooling water jacket 206 is controlled below 50 ℃, and the service life of the bearing 207 of the main shaft 204 is ensured.

The specific structure of the oil-air lubrication system 5 is shown in fig. 4: the oil-gas lubrication system 5 delivers lubricating oil and 4-7kg/cm²Compressed air enters a main shaft 204 of the high-temperature hot air fiber-forming four-roller centrifuge 2, a bearing 207 of the main shaft 204 is lubricated by lubricating oil, the compressed air forms positive pressure in a cavity 213 formed in the main shaft 204 and passes through an air barrier formed by the high-speed rotation of the bearing 207, and the air barrier is formed by labyrinthThe uterine seal 214 is expelled from the cavity. Takes heat away from the bearing 207 of the shaft 204 inside the cavity, and prevents the slag balls outside the cavity from entering the cavity and damaging the bearing 207.

the concrete structure of the centrifugal roll cooling water system 6 is shown in fig. 4: the second water pump 601 supplies cooling water to the second throttle valve 602, and the amount of the cooling water is controlled to be water flow of 50-300 l/h and supplied to the centrifugal roller 208, the amount of the cooling water is controlled to be the amount required for heating and vaporizing the cooling water into water vapor in the centrifugal roller 208, and the cooling water is vaporized into the water vapor in the centrifugal roller 208 and simultaneously takes away a large amount of heat to cool the centrifugal roller 208.

The specific structure of the sizing system 8 is shown in fig. 6: the glue pump 801 pumps out glue from the glue storage tank and then conveys the glue in two ways. One path is fed to the peripheral glue applicator 9 via a fourth throttle 803. The fourth throttle 803 adjusts the flow rate of the peripheral glue application to spray the formed rock wool fibers from the periphery of the centrifugal roll 208. The other path is conveyed to a liquid-gas mixing center glue spraying device 7 through a third throttle valve 802. The third throttle 802 adjusts the flow rate of the glue sprayed from the center and sprays glue to the formed rock wool fibers from the center of the centrifugal roller. The amount of glue applied and the uniformity of the glue applied are controlled by adjusting the third throttle 802 and the fourth throttle 803.

The above description is intended to be illustrative and not restrictive, and the scope of the invention is defined by the appended claims, which may be modified in any manner within the scope of the invention.