CN212369851U - Automatic dust removal device for continuous casting flame cutter - Google Patents

Automatic dust removal device for continuous casting flame cutter Download PDF

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Publication number
CN212369851U
CN212369851U CN202021969365.2U CN202021969365U CN212369851U CN 212369851 U CN212369851 U CN 212369851U CN 202021969365 U CN202021969365 U CN 202021969365U CN 212369851 U CN212369851 U CN 212369851U
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CN
China
Prior art keywords
dust
nozzle
hood
dust removing
automatic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN202021969365.2U
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Chinese (zh)
Inventor
田凤军
刘逸舟
吴康康
杨秀青
梁凯丽
张绍强
刘常富
何文斌
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shandong Huijun Energy Saving And Environmental Protection Technology Co ltd
Original Assignee
Shandong Huijun Energy Saving And Environmental Protection Technology Co ltd
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Priority to CN202021969365.2U priority Critical patent/CN212369851U/en
Application granted granted Critical
Publication of CN212369851U publication Critical patent/CN212369851U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model provides an automatic dust removal device for a continuous casting flame cutting machine, which comprises a dust hood and a dust hood which are arranged on slide rails at two sides of the flame cutting machine in a sliding way; a steel billet is arranged on the lower side of the dust hood; one end of an air pipe is connected to the upper side of the dust hood, and the other end of the air pipe is connected with a fan; the inside equipartition of dust excluding hood has the water smoke nozzle, the inside symmetry of dust excluding hood is provided with the cascade nozzle, the dust excluding hood can be relative slip on the slide rail, can remove the dust excluding hood to work area, form a relatively inclosed space, can spray water smoke through the nozzle, adsorb the production flue gas, the granule after the absorption can be through trachea suction, moreover, the steam generator is simple in structure and high-efficient, if the flue gas that produces is too big, can be through the cascade nozzle of opening the lateral wall, the cascade nozzle sprays relatively, can form one water wall, make the combination of flue gas and water smoke more thorough, the dust removal effect is better.

Description

Automatic dust removal device for continuous casting flame cutter
Technical Field
The utility model relates to an automatic dust collector for continuous casting fire cutter belongs to dust collecting equipment technical field.
Background
The continuous casting billet is cut after reaching the specified length in the steel production, most factories use flame cutting machines to perform segmented cutting due to high billet temperature (about 900 ℃), high-calorific-value gas is used for combustion, the section of the billet is melted, a large amount of smoke is generated by violent reaction, especially when high alloy, stainless steel and heat-resistant steel are cut, ultrafine iron powder needs to be added to blow into cutting flame, and powder combustion can generate a large amount of heat and generate larger smoke. The air can permeate into the interior and the top of the factory building to pollute the working environment, and the air can be polluted greatly when the air is discharged out of the factory building. The traditional dust removal facility of the flame cutting machine is used for collecting flue gas in the region of the flame cutting machine, cloth bag (or electrostatic) dust removal treatment is adopted, the defects of high equipment investment, high operation and maintenance cost, need of operation and control of professional personnel and the like exist, and the development of the unorganized emission dust removal work of the flame cutting process is limited.
Chinese patent document CN201710670963.6 provides a "dust hood device for continuous casting fire cutting machine", which includes a dust hood body, a dust removing pipe, a pipe support, an electric valve, an airflow guiding device, a driving device and a fixed base. The dust removal cover body is arranged above the flame cutting machine bracket through a taper pin; the front end of the dust removal pipe is connected with the dust removal cover body through a bolt, and the tail end of the dust removal pipe is provided with an electric valve which is connected with a main dust removal pipeline of a workshop; the dust removing cover body is internally provided with an airflow guide device, and the airflow guide device is connected with the rod end of the driving device through a connecting rod mechanism; the driving device is arranged outside the dust removing cover body through the fixed base. The utility model discloses device during operation drive arrangement stretches out the rod end, drives link mechanism counter-clockwise motion, makes the guide plate with rotation center counter-clockwise turning, on the contrary, drive arrangement's action and flame cut quick-witted cutting action are chain simultaneously, can effectual discharge flame cut quick-witted smoke and dust. However, the dust is removed by adopting a dust collection mode, only part of dust with smaller particles can be removed, the dust removal is not thorough, and a large amount of dust still exists around a working area, so that the damage and the damage to workers and the environment are caused. Meanwhile, because of different steel grades and different dust amounts generated during fire cutting, the device can not selectively start dust collection, atomization dust fall or combined dust collection according to the dust amount under different dust collection conditions, so that the effect of thoroughly removing dust is achieved.
SUMMERY OF THE UTILITY MODEL
The utility model provides a not enough to prior art, the utility model provides an automatic dust collector for continuous casting fire cutter, this automatic dust collector adopt the mode that dust absorption and/or atomizing removed dust, remove dust more thoroughly, and the effect is more ideal.
The technical scheme of the utility model as follows:
an automatic dust removal device for a continuous casting flame cutting machine comprises a dust hood, wherein the dust hood is arranged on sliding rails on two sides of the flame cutting machine in a sliding manner; the upper side of the dust hood is connected with one end of an air pipe, the other end of the air pipe is connected with a fan, a filter is arranged on the air pipe between the fan and the dust hood, and a filtering nozzle is arranged in the filter;
a dust removal assembly is arranged in the dust removal cover and used for removing dust, an infrared sensor is arranged in the dust removal cover and used for detecting the position of the steel billet, a dust content sensor A is arranged at the top in the dust removal cover and used for detecting the dust concentration in the dust removal cover; a dust content sensor B is arranged at the air outlet of the fan and used for detecting the dust concentration at the air outlet of the fan.
Preferably, the dust removal assembly comprises an atomization dust removal assembly, the atomization dust removal assembly comprises a support frame and a water mist nozzle, the support frame is horizontally fixed in the dust hood, and the water mist nozzle is fixedly arranged on the support frame.
Further preferably, the number of the water mist nozzles is 10 to 20.
Preferably, the dust removal assembly further comprises a water curtain assembly, the water curtain assembly comprises water curtain nozzles, the water curtain nozzles are symmetrically arranged on two sides in the dust removal cover, and the water curtain nozzles are located below the water mist nozzles.
Preferably, the air outlet of the fan is connected to an external slag runner. The design has the advantages that the removed and sucked dust is directly discharged into the slag runner below the flame cutting machine, and finally the dust is discharged through the slag runner.
Preferably, the bottom end of the dust hood is provided with a pulley, and the pulley is arranged in the sliding rail. The advantage of this design is, when the dust excluding hood needs the maintenance, can remove the dust excluding hood through the pulley, remove and leave the flame cut machine work position after, maintain the dust cover.
Preferably, the upper part of the dust hood is in an inverted funnel shape. The advantage of this design is that it makes smoke easier to gather and suck out.
Preferably, the filtering nozzle, the water mist nozzle and the water curtain nozzle are all connected with the liquid tank through water pipes, and a dedusting agent is arranged in the liquid tank. The design has the advantages that the proportion of the traditional Chinese medicine and the water in the dedusting agent is automatically proportioned according to a preset program, and the dedusting agent is automatically supplied for spray dedusting. The operation of dust collection, spraying and the like is automatically opened and closed according to the working state of the flame cutting machine, and the spraying water curtain is manually or automatically selected according to the amount of the smoke.
Preferably, the infrared sensor, the dust content sensor A and the dust content sensor B are electrically connected with the PLC, and the PLC is also electrically connected with the filtering nozzle, the water mist nozzle and the water curtain nozzle.
According to the technical scheme of the utility model, the dust hood can slide relatively on the slide rail, and the dust hood can be moved out of a working area when the flame cutting machine is maintained, so that the maintenance of the flame cutting machine is not hindered; the dust excluding hood forms a relatively inclosed space, can adopt the dust absorption mode to remove dust alone, also can be through water smoke nozzle blowout water smoke, adsorb producing the flue gas, the smoke and dust particle part after the absorption descends to the cinder notch in, the remainder can be through trachea suction, simple structure is high-efficient, if the flue gas that produces is too big, can be through the cascade nozzle of opening the lateral wall, the cascade nozzle sprays relatively, can form a waterwall, make the combination of flue gas and water smoke more thorough, the dust removal effect is better. The dust removal device is provided with the filter, the dust removal assembly can not be started when dust is small, the filter is internally provided with the filtering nozzle, dust adsorbed into the air pipe can be sprayed and treated, the dust can flow out through the air pipe, dust is conveniently treated, and meanwhile the dust is prevented from being raised again.
The beneficial effects of the utility model reside in that:
1. the automatic dust removing device adopts the combined modes of water mist, dust absorption, spraying and filtering dust removal, one or more combined dust removing modes are freely combined according to the smoke dust amount, atomized liquid drops are combined with dust through dust remover atomization, the dust weight is increased, and a large amount of dust falls under the action of gravity; the dust which is not infiltrated and fallen by the atomized liquid drops is sucked away under the action of the fan, so that the dust is removed more thoroughly, and the effect is better.
2. The utility model discloses automatic dust collector alternative open the mode that cascade nozzle and water smoke nozzle combined, carry out different processing to the dust of different degrees, or combine the mode of processing, the more energy can be saved, and the effect is better simultaneously.
Drawings
FIG. 1 is a schematic structural view of the automatic dust removing device of the present invention;
FIG. 2 is a schematic view of the internal structure of the dust hood of the present invention;
wherein: 1. a dust hood; 2. a slide rail; 3. an air tube; 4. a fan; 5. a steel billet; 6. a filter; 7. a water mist nozzle; 8. a water curtain nozzle; 9. a filtering nozzle; 10. a support frame; 11. a steel billet; 12. an infrared sensor; 13. a dust content sensor A; 14. and a dust content sensor B.
Detailed Description
The present invention will be further described, but not limited to, by the following examples in conjunction with the accompanying drawings.
Example 1:
the embodiment provides an automatic dust removal device for a continuous casting flame cutting machine, which comprises a dust hood 1, wherein the dust hood 1 is arranged on sliding rails 2 on two sides of the flame cutting machine in a sliding manner; a billet 11 is arranged on the lower side of the dust hood 1; the upper side of the dust hood 1 is connected with one end of a gas pipe 3, the other end of the gas pipe 3 is connected with a fan 4, and a filter 6 is arranged on the gas pipe 3 between the fan 4 and the dust hood 1; a filtering nozzle 9 is arranged in the filter 6, and a dust removal component is arranged in the dust removal cover 1 and used for removing dust. The dust removal assembly comprises an atomization dust removal assembly and a water curtain assembly; the atomization dust removal assembly comprises a support frame 10 and a water mist nozzle 7, the support frame 10 is horizontally fixed in the dust hood 1, and the water mist nozzle 7 is fixedly arranged on the support frame 10; 10 water mist nozzles 7 in total; the water curtain component comprises a water curtain nozzle 8, the two sides of the interior of the dust hood 1 are symmetrically provided with the water curtain nozzle 8, and the water curtain nozzle 8 is positioned below the water mist nozzle 7.
Specifically, dust excluding hood 1 is formed by the steel sheet welding, and its upper portion is for invering the infundibulate, and the lower part is the cuboid, and the pulley is installed to the left and right sides of cuboid, and in slide rail 2 was placed to the pulley, can follow slide rail 2 round trip movement dust excluding hood 1, certain space was left to the both sides bottom around the dust excluding hood 1, supplies the steel billet to pass through. The dust hood 1 can relatively slide on the slide rail 2, and the dust hood 1 can be moved out of a working area when the flame cutting machine is maintained, so that the maintenance of the flame cutting machine is not hindered; dust excluding hood 1 forms a relatively inclosed space, can adopt the dust absorption mode to remove dust alone, also can be through water smoke nozzle 7 blowout water smoke, adsorb producing the flue gas, the smoke and dust particle part after the absorption descends to the cinder notch in, the remainder can be through trachea suction, simple structure is high-efficient, if the flue gas that produces is too big, can be through the cascade nozzle 8 of opening the lateral wall, cascade nozzle 8 sprays relatively, can form one waterwall, make the combination of flue gas and water smoke more thorough, the dust removal effect is better. Meanwhile, the filter 6 is arranged, the dust removal assembly is not started when the dust is small, the filter nozzle 9 is arranged in the filter, the dust adsorbed into the air pipe 3 can be sprayed and processed, the dust can flow out through the air pipe 3, the dust is convenient to process, and the dust is prevented from being raised again.
The air outlet of the fan 4 is connected to an external slag runner, and the removed and sucked dust is directly discharged into the slag runner below the flame cutting machine. And discharging the dust through a slag runner. When the dust excluding hood needs to be maintained, the dust excluding hood can be moved through the slide rail 2, after the dust excluding hood is moved away from a work area of the flame cutting machine, the dust cover 1 is maintained, the upper portion of the dust excluding hood is inverted funnel-shaped, so that smoke can be gathered and sucked out more easily, the filtering nozzle, the water mist nozzle and the water curtain nozzle are all connected with the liquid tank through the water pipe, and a dust removing agent is filled in the liquid tank.
An infrared sensor 12 is arranged in the dust hood 1, the height of the infrared sensor 12 is consistent with that of a steel billet, the infrared sensor 12 is positioned on the inner wall of the dust hood 1 at a cutting position, the infrared sensor 12 is used for detecting whether the steel billet reaches a specified position, a dust content sensor A13 is arranged at the top in the dust hood 1, a dust content sensor A13 is used for detecting the dust concentration in the dust hood, a dust content sensor B14 is arranged at the air outlet of the fan, and a dust content sensor B14 is used for detecting the dust concentration at the air outlet of the fan 4; infrared sensor 12, dust content sensor A13, dust content sensor B14 all through electric connection PLC, PLC is fixed to be set up on dust cover 1 lateral wall, PLC still filters nozzle 9, water smoke nozzle 7 and cascade nozzle 8 through electric connection control.
Example 2:
an automatic dust removing device for a continuous casting fire cutter has the same structure as that of the embodiment 1, except that: the number of the water mist nozzles 7 is 20.
Example 3:
a working method of an automatic dust removal device for a continuous casting fire cutter adopts the scheme of the automatic dust removal device in embodiment 1, and the working process of the automatic dust removal device comprises the following steps:
(1) when the steel billet reaches the working position of the flame cutter in the dust cover, the infrared sensor detects the steel billet, and the flame cutter starts to perform steel billet flame cutting;
(2) when the steel billet is cut by fire, the PLC controls the opening of the fan and the filtering nozzle in the filter to extract the particle smoke of the dust hood;
(3) when the detection concentration of the dust content sensor A reaches 10mg/m3When the dust cover is opened, the water mist nozzle in the dust cover is opened, and the lower working area is sprayed for dust reduction;
(4) when the detection concentration of the dust content sensor A reaches 30mg/m3When the dust is reduced, the PLC controls to open the water curtain nozzle to spray and reduce dust;
(5) after the continuous casting fire cutter finishes working, the infrared sensor detects that the steel billet leaves, and the PLC closes the fan, the filtering nozzle, the water mist nozzle and the water curtain nozzle after 60 seconds.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (9)

1. An automatic dust removal device for a continuous casting flame cutting machine comprises a dust hood, and is characterized in that the dust hood is arranged on sliding rails on two sides of the flame cutting machine in a sliding manner; the upper side of the dust hood is connected with one end of an air pipe, the other end of the air pipe is connected with a fan, a filter is arranged on the air pipe between the fan and the dust hood, and a filtering nozzle is arranged in the filter;
a dust removal assembly is arranged in the dust removal cover and used for removing dust, an infrared sensor is arranged in the dust removal cover and used for detecting the position of the steel billet, a dust content sensor A is arranged at the top in the dust removal cover and used for detecting the dust concentration in the dust removal cover; a dust content sensor B is arranged at the air outlet of the fan and used for detecting the dust concentration at the air outlet of the fan.
2. The automatic dust removing device according to claim 1, wherein the dust removing assembly comprises an atomizing dust removing assembly, the atomizing dust removing assembly comprises a support frame and a water mist nozzle, the support frame is horizontally fixed in the dust removing cover, and the water mist nozzle is fixedly arranged on the support frame.
3. The automatic dust removing apparatus of claim 2, wherein the number of the water mist nozzles is 10 to 20.
4. The automatic dust removing device according to claim 2, wherein the dust removing assembly further comprises a water curtain assembly, the water curtain assembly comprises water curtain nozzles, the water curtain nozzles are symmetrically arranged on two sides in the dust removing cover, and the water curtain nozzles are positioned below the water mist nozzles.
5. The automatic dust extraction device of claim 1, wherein the fan outlet is connected to an external slag runner.
6. The automatic dust removing device according to claim 1, wherein a pulley is arranged at the bottom end of the dust removing cover, and the pulley is arranged in the sliding rail.
7. The automatic dust removing apparatus according to claim 1, wherein the upper portion of the dust removing cover is in the shape of an inverted funnel.
8. The automatic dust removing device according to claim 4, wherein the filtering nozzle, the water mist nozzle and the water curtain nozzle are all connected with a liquid tank through water pipes, and a dust removing agent is arranged in the liquid tank.
9. The automatic dust removing device according to claim 4, wherein the infrared sensor, the dust content sensor A and the dust content sensor B are electrically connected with a PLC, and the PLC is further electrically connected with the filter nozzle, the water mist nozzle and the water curtain nozzle.
CN202021969365.2U 2020-09-10 2020-09-10 Automatic dust removal device for continuous casting flame cutter Expired - Fee Related CN212369851U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202021969365.2U CN212369851U (en) 2020-09-10 2020-09-10 Automatic dust removal device for continuous casting flame cutter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202021969365.2U CN212369851U (en) 2020-09-10 2020-09-10 Automatic dust removal device for continuous casting flame cutter

Publications (1)

Publication Number Publication Date
CN212369851U true CN212369851U (en) 2021-01-19

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Application Number Title Priority Date Filing Date
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Country Status (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111957161A (en) * 2020-09-10 2020-11-20 山东慧君节能环保科技有限公司 Automatic dust removal device for continuous casting flame cutter and application thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111957161A (en) * 2020-09-10 2020-11-20 山东慧君节能环保科技有限公司 Automatic dust removal device for continuous casting flame cutter and application thereof

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GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20210119

Termination date: 20210910

CF01 Termination of patent right due to non-payment of annual fee