CN112359158A - Circulating water cooling device, blast furnace distributor and water supply method thereof - Google Patents

Abstract

The invention relates to a circulating water cooling device, a blast furnace distributor and a water supply method thereof, belonging to the field of blast furnaces. The water distributor group is arranged on the rotary cylinder and rotates together with the rotary cylinder, the telescopic pipe group is arranged in the distributor shell, when the water distributor group rotates to the relative position of the telescopic pipe group, the telescopic pipe group and the water distributor group rotate synchronously and are communicated with the male connector through the female connector correspondingly for water supply and water return for a period of time, the connector is pulled out to a standby position after one period of water supply and water return is completed, and continuous pressurized circulating water supply cooling of the rotary cylinder can be realized through the combination of the telescopic pipe groups and the water distributor groups with different numbers. The scheme avoids the problems of unreliability and difficult maintenance of the large rotary joint; meanwhile, the local plug-in connector is reliable in sealing, and compared with a large water tank adopting a labyrinth air seal structure, the local plug-in connector not only avoids a large amount of water leakage problems, but also is convenient to replace and maintain.

Description

Circulating water cooling device, blast furnace distributor and water supply method thereof

Technical Field

The invention belongs to the field of blast furnaces, and particularly relates to a circulating water cooling device suitable for a blast furnace distributing device, the blast furnace distributing device with the circulating water cooling device, and a method for circularly supplying water to the blast furnace distributing device.

Background

The blast furnace bell-less top distributor is a throat device for connecting the top and the blast furnace, is in a high-temperature and high-pressure environment, is conventionally called a water-cooling gearbox, and has the defects that the cooling, especially the water cooling, of a transmission mechanism in the distributor is always available although some types of distributors do not adopt a gear structure at present.

At present, the water cooling structure of the distributing device has an open type and a closed type.

The traditional open water cooling mode is disclosed in many documents, such as the structure disclosed in the Chinese document "water-cooled distribution chute transmission gear box research on blast furnace bell-less top" (the northeast university master paper) 1.3.4.3 and fig. 1.19 and 1.20. The structure is generally that an upper water tank rotating along with a rotary drum is arranged at the upper part of a distributor shell, water is supplied by a pipeline of the distributor shell aiming at the upper water tank, the water naturally flows to the rotary drum and a transmission mechanism arranged on the rotary drum from the lower part of the upper water tank due to gravity, and flows to a fixed lower water tank below the distributor shell from a water outlet of a chassis at the lower part of the rotary drum after cooling.

Such a structure and various improved structures based on such a structure have the following problems:

(1) the water channel has no pressure, the cooling effect is not good, and the water consumption is large; (2) the waterway flow between the rotary cylinder and the distributing device shell cannot be completely sealed, so that lubricating oil in a transmission structure (on the rotary cylinder) and dust from a blast furnace can easily enter the waterway; (3) the pressure control instability of the blast furnace and the distributor leads to a large amount of water to leak into the blast furnace, and even frequently leads to the blowing-down maintenance of the blast furnace.

Based on the improvement of the traditional open water cooling, a closed water cooling form, also called as a closed water circulation system or a pressurized water cooling system, is gradually popular in recent years. Chinese patent 201080038163.9 relates to a water supply and return structure for an annular rotary joint, which is mainly to concentrate a lower water tank of a traditional scheme into an upper water tank as a return loop, to make the return loop as an annular tank (pipe) to be sleeved inside an annular cavity of the upper water tank and to perform certain pressure isolation, and to adopt a similar labyrinth structure on the upper part of the upper water tank and to apply pressure gas to perform integral sealing.

However, such a structure has the following problems:

(1) the structure is influenced by the size of the throat pipe of the distributing device, is a large-scale rotary joint structure all the time, and is acknowledged in the industry that the reliability problem exists in the large-scale rotary structure; (2) in order to isolate the dust and oil dirt in the distributor, the labyrinth structure is almost in contact, which increases the processing cost, and nevertheless, just as with the conventional labyrinth structure, the leakage situation cannot be completely avoided; (3) the return water annular tank is arranged in the upper water tank and is provided with a sealing element, so that the structure is very difficult to replace and maintain; (4) due to the above structure, the pressure of water is limited, and the increased water pressure is more likely to leak.

Chinese patent 201180007114.3 adopts a smaller rotary joint structure, the rotary joint is installed outside the device above the distributor for water supply and water return, the shaft rod is arranged on the inner ring of the rotary joint to hang the central throat of the distributor, and the central throat and the rotary cylinder of the distributor rotate together.

Such a structure improves the reliability and maintainability of the rotary joint, but poses problems:

(1) the distributing device is connected with other equipment in series, so that the complexity of an equipment interface is brought; (2) for the needs of structural arrangement and furnace top material flow, the distance from the distributing device to the rotary joint is several meters, the concentricity of the rotary joint and the distributing device needs to be ensured, and the difficulty of processing and equipment installation is improved; (3) because the original fixed central throat pipe plays with the motion piece, the equipment has increased the fault point again, and in addition central throat pipe itself is the vulnerable part, and the new structure makes the change operation more complicated.

Disclosure of Invention

In view of the above, the present invention provides a circulating water cooling device for a blast furnace distributing device, a blast furnace distributing device with the circulating water cooling device, and a method for circulating water supply for the blast furnace distributing device, so as to achieve the effects of reliable sealing, reduction of manufacturing difficulty, and convenience in installation and maintenance.

In order to achieve the purpose, the invention provides the following technical scheme:

a circulating water cooling device suitable for a blast furnace distributor comprises a water cooling pump station, a water distributor group and a telescopic pipe group; the water distributor group comprises two independently arranged water channels, one port of each water channel is connected with a female joint, and the other port of each water channel is connected with a water cooling channel arranged in the rotary cylinder through a distribution water pipe; the telescopic pipe group comprises two telescopic pipes which are independently arranged, one port of each telescopic pipe is connected with a male joint, and the other port of each telescopic pipe is connected with a water-cooling pump station through a water hose; the two telescopic pipes in the telescopic pipe group are electrically connected with a plugging power source and the plugging power source controls the telescopic state of the two telescopic pipes, and when the two telescopic pipes in the telescopic pipe group are in the extending state, the two male connectors on the two telescopic pipes are correspondingly matched and communicated with the two female connectors in the water distributor group to form a water cooling channel capable of circulating.

The deflection driving mechanism mainly comprises a deflection power source, and a driving gear and a driven gear which are meshed with each other; the driving gear is arranged at the output end of the deflection power source, and two telescopic pipes in the telescopic pipe group are arranged on the driven gear through the mounting frame and driven by the driven gear to deflect.

Furthermore, a supporting sliding groove is arranged on the mounting rack, and the supporting sliding groove is clamped and embedded on the guide supporting rail so that the deflected mounting rack rotates along the guide supporting rail.

Furthermore, the female joint and the male joint which are matched with each other are double stop valve quick joints.

A blast furnace distributing device comprises a distributing device shell, a rotary drum which is suspended in the distributing device shell and is coaxially arranged with the central axis of a blast furnace; still include like above-mentioned circulating water cooling plant, the direction supports the rail and is the circular arc track, and its coaxial setting is in the periphery of rotatory section of thick bamboo.

Furthermore, the water distributor groups are provided with at least three groups which are uniformly distributed around the circumference of the rotary cylinder; at least two groups of telescopic pipe groups are arranged on the periphery of the rotary cylinder and matched with the water distributor groups.

Further, the guide support rail is a circular ring rail and is fixedly arranged on the distributing device shell; the mounting rack of each telescopic pipe group is arranged on the circular ring track.

Furthermore, the deflection driving mechanisms are matched with the telescopic pipe groups in number to realize one-to-one corresponding control, and the deflection power sources in the deflection driving mechanisms are fixedly arranged on the distributing device shell.

A water supply method suitable for a blast furnace distributor mainly comprises the following steps:

s1: the telescopic pipe group is in a standby position, the telescopic pipe is in a retraction state and does not interfere the water distributor group to rotate along with the rotating cylinder;

s2: when the water distributor group rotates to be close to the telescopic pipe group, the deflection driving mechanism is started to drive the telescopic pipe group to do angular acceleration movement in the same direction as the water distributor group;

s3: when the angular velocity of the telescoping tube bank accelerates to the same angular velocity as the water distributor bank, the male and female fittings are in face-to-face alignment, i.e., the telescoping tube bank and the water distributor bank rotate synchronously;

s4: when the telescopic pipe group and the water distributor group start to synchronously rotate, the plugging power source of the telescopic pipes is started and controlled, the two telescopic pipes and the male connectors on the two telescopic pipes are simultaneously pushed towards the opposite female connectors, after the valve cores in the female connectors and the male connectors are mutually jacked, one of the two telescopic pipes in the telescopic pipe group is used as a water inlet pipe and the other is used as a water outlet pipe, and the two telescopic pipes are simultaneously communicated with the water cooling channel in the corresponding rotary cylinder to form a circulation loop containing water supply and return;

s5: the water supply and return processes are continued until the telescopic pipe group synchronously rotates to the position near the limit position;

s6: when the telescopic pipe group moves to the position near the limit position, the telescopic pipe is pulled out, and the water supply is finished;

s7: the telescopic pipe group reversely rotates to return to the standby position to prepare for the next water supply and water return operation.

Furthermore, the plurality of telescopic pipe groups are matched with the plurality of water distributor groups, when a certain telescopic pipe group is matched with a certain water distributor group for water supply, other telescopic pipe groups are in a standby position, and when the telescopic pipe group for water supply finishes water supply, other telescopic pipe groups just start to be matched with other water distributor groups for water supply.

The invention has the beneficial effects that:

1. the double stop valve quick connectors are respectively arranged on the telescopic pipe group and the water distributor group to perform time-sharing and intermittent plug-in water supply and water return, so that the use of a large water tank and a water tank structure is avoided, the sealing of the large water tank and the water tank is avoided, the reliability of the water supply device is improved, and the manufacturing difficulty is reduced.

2. Adopt quick-operation joint in the part, the structure of joint itself is less, and is sealed reliable, has realized the complete sealing connection in water route to realize the isolation of profit and dust and water completely.

3. Because the sealing reliability is improved, the water pressure can be further improved, the pressure of the quick joint of the double stop valve can be generally used to dozens of MPa or even dozens of MPa, the water pressure is improved to bring the improvement of the flow rate of cooling water, and the cooling heat exchange efficiency is enhanced.

4. The alternating continuous water supply for the rotary drum is realized through the number combination of the telescopic pipe groups and the water distributor groups.

5. The water supply device and the water return device are both small structures arranged at local parts, the design and arrangement mode is flexible, the structure of the distributor is almost not required to be modified, the cross connection of a movement mechanism between a rotary joint and the equipment arranged on other equipment is avoided, and the furnace top equipment is convenient to overhaul and maintain integrally.

6. In the driving control of the telescopic pipe group, a structure that the guide support rail is matched with the support sliding chute is adopted, so that a large-scale bearing structure is avoided, the manufacturing is simple, and the cost is low; meanwhile, the rotation driven by the gear and the plugging and unplugging driven by the hydraulic cylinder are respectively controlled, so that the whole control system is simpler and more reliable.

7. A protective cover and a protective plate are adopted for the water supply device, so that oil stain and dust pollution are prevented, and structural work failure is avoided; and the local fixed protective cover not only saves the manufacturing cost, but also saves the maintenance space inside the distributing device.

8. The technical scheme is used for providing other fluid media for the distributor rotating cylinder and is also completely feasible (for example, lubricating grease is provided for a tilting mechanism arranged on the rotating cylinder), and at the moment, only a telescopic pipe is added at a telescopic pipe group, a medium pipeline and a double-stop valve quick connector for corresponding connection are additionally added at a water distributor group; the fluid medium can be connected and disconnected at different time intervals from the water supply time intervals by adopting an independent control strategy by utilizing the independence of the motion mechanisms in the embodiment.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.

Drawings

For the purposes of promoting a better understanding of the objects, aspects and advantages of the invention, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:

FIG. 1 is a schematic diagram of a half-section structure of a blast furnace distributing device with a circulating water cooling device;

FIG. 2 is an enlarged view of section I of FIG. 1;

FIG. 3 is an isometric view of a blast furnace distributor with a circulating water cooling device;

fig. 4 is a diagram of the movement locus of the telescopic pipe group.

Reference numerals:

the device comprises a distributing device shell 1, a rotary drum 2, a water distributor group 3, a double stop valve quick joint 4, a telescopic pipe group 5, a deflection driving mechanism 6, a plugging power source 7, a fixed protective cover 8, a rotary protective plate 9, a water-cooling pump station 10 and a blast furnace 11;

in the water distributor group: a distribution water pipe 301, a distribution water pipe 302, a water channel 303 and a water channel 304;

in the double check valve quick coupling: a female joint 401, a male joint 402;

in the telescopic pipe group: a guide support rail 501, a support sliding groove 502, a telescopic pipe 503, a telescopic pipe 504 and a mounting rack 505;

in the deflection drive mechanism: a deflection power source 601, a driving gear 602, a driven gear 603;

a blast furnace center axis AO; a water-cooling channel T; a water hose FP01 and a water hose FP 02; water distributor group (one) WG01, water distributor group (two) WG02, water distributor group (three) WG 03; the telescopic pipe group (first) EG01 and the telescopic pipe group (second) EG 02.

Detailed Description

The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention in a schematic way, and the features in the following embodiments and examples may be combined with each other without conflict.

Wherein the showings are for the purpose of illustrating the invention only and not for the purpose of limiting the same, and in which there is shown by way of illustration only and not in the drawings in which there is no intention to limit the invention thereto; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", "rear", etc., based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not an indication or suggestion that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes, and are not to be construed as limiting the present invention, and the specific meaning of the terms may be understood by those skilled in the art according to specific situations.

Referring to fig. 1 to 3, a circulating water cooling device suitable for a blast furnace distributor comprises a water cooling pump station 10, a water distributor group 3 and a telescopic pipe group 5; the water distributor group 3 comprises two independently arranged water channels 303 and 304, one end ports of the water channels 303 and 304 are connected with a female joint 401, the other end port of the water channel 303 is connected with a water cooling channel T arranged in the rotary cylinder 2 through a distribution water pipe 302, and the other end port of the water channel 304 is connected with the water cooling channel T arranged in the rotary cylinder 2 through a distribution water pipe 301; the telescopic pipe group 5 comprises two independently arranged telescopic pipes 504 and 503, one port of each telescopic pipe 504 and 503 is connected with a male joint 402, the other port of the telescopic pipe 504 is connected with the water-cooled pump station 10 through a water hose FP02, and the other port of the telescopic pipe 503 is connected with the water-cooled pump station 10 through a water hose FP 01; the two telescopic pipes in the telescopic pipe group 5 are electrically connected with a plugging power source 7 and the plugging power source 7 controls the telescopic state of the two telescopic pipes, and when the two telescopic pipes in the telescopic pipe group 5 are in the extending state, the two male connectors 402 on the two telescopic pipes are correspondingly matched and communicated with the two female connectors 401 in the water distributor group 3 to form a water cooling channel capable of circulating. The female connector 401 and the male connector 402, which are arranged to match each other, may be an existing double stop valve quick connector 4.

It should be noted that: the power source 7 for controlling the plugging and unplugging actions of the telescopic pipes is generally driven by hydraulic power, such as a hydraulic cylinder. The hydraulic cylinder moves linearly, the telescopic pipe is a piston rod of the hydraulic cylinder, and if the piston rod is used as a water pipeline, the piston rod of the hydraulic cylinder is a piston rod of the double-out rod. Of course, the telescopic tube can also be driven by other linear motion mechanisms.

Because the water distributor group 3 rotates along with the rotary drum 2, the circulating water cooling device also comprises a deflection driving mechanism 6, so that the telescopic pipe group 5 connected with the deflection driving mechanism 6 can rotate around the central axis of the rotary drum (also the central axis AO of the blast furnace) at a certain angle under the driving of the deflection driving mechanism 6. The deflection driving mechanism 6 is generally a gear mechanism driven by a motor, and specifically includes a deflection power source 601, and a driving gear 602 and a driven gear 603 engaged with each other, wherein the driving gear 602 is disposed at an output end of the deflection power source 601 (motor), and two telescopic tubes 503, 504 in the telescopic tube group 5 are disposed on the driven gear 603 through a mounting rack 505 and are driven by the driven gear 603 to deflect. It should be noted that: the gear mechanism that is connected to the mounting bracket 505 and serves as the driven gear 603 may be an incomplete gear segment or a complete external gear ring.

In the telescopic tube group 5, two independently arranged telescopic tubes 503, 504 are mounted together on a mounting frame 505 to form a whole. In order to realize the rotation of the telescopic pipe group 5 around the central axis AO of the blast furnace or the central axis of the rotary drum 2, in the scheme, an arc-shaped guide support rail 501 is further arranged (fixedly arranged in the distributor housing 1), a support chute 502 is fixedly connected to the lower part of the mounting rack 505 of the telescopic pipe group 5, and the support chute 502 is clamped and embedded on the guide support rail 501 so that the deflected telescopic pipe group 5 with the mounting rack 505 rotates along the guide support rail 501 as a whole. By adopting the structure that the guide support rail is matched with the support sliding groove, the use of a large-scale bearing structure is avoided, the manufacture is simple, and the cost is low.

In this scheme, the telescopic pipes 503 and 504 are inserted and pulled by a linear motion mechanism, and the telescopic pipe group 5 as a whole adopts a rotary motion mechanism to realize deflection, i.e. the rotation driven by the gear and the insertion and pulling driven by the hydraulic cylinder are respectively controlled, so that the whole control system is simpler and more reliable. Of course, it is also possible to use other mechanisms (e.g., a manipulator) that can achieve the planar combined motion, and even to use a specially designed mechanism (e.g., a linkage) that can achieve the above-mentioned insertion and extraction and deflection trajectory motions simultaneously. With such a mechanism, the supporting sliding groove 502 and the guiding supporting rail 501 in this embodiment are not necessary.

As is known, a blast furnace distributing device comprises a distributing device housing 1 and a rotary drum 2, the distributing device housing 1 and the drive thereof are hermetically fixed on a flange of a blast furnace 11, the rotary drum 2 is suspended on a drive bearing inside the distributing device housing 1 through a slewing bearing, the rotary drum 2 is coaxially arranged with a central axis AO of the blast furnace, a distributing chute tilting mechanism is installed on the rotary drum 2, and the distributing chute is suspended on an output shaft of the distributing chute tilting mechanism.

The circulating water cooling device just provides cooling water for the rotary drum 2 of the distributing device. The blast furnace distributing device with the circulating water cooling device comprises the distributing device shell 1, the rotary cylinder 2 and the like, and also comprises the circulating water cooling device, wherein the guide supporting rail is an arc rail which is coaxially arranged at the periphery of the rotary cylinder.

As shown in fig. 3, three groups of water distributor groups 3 are uniformly arranged at the circumferential position of the chassis outer ring of the rotary drum 2, and respectively: water distributor group (one) WG01, water distributor group (two) WG02, water distributor group (three) WG 03. The lower water channel 304 of each water distributor group 3 is used as a water inlet channel and is fixedly connected with the upper end of the distribution water pipe 301, the lower end of the distribution water pipe 301 is fixedly connected to the chassis of the rotary drum 2 and is aligned with the water inlet of the water cooling channel T inside the rotary drum 2, and the distribution water pipe 301 can be used as a support structure of the water distributor group 3. The upper water channel 303 of each water distributor group 3 is used as a water return waterway and is fixedly connected with the lower end of the distribution water pipe 302, and the upper end of the distribution water pipe 302 is fixedly connected on the cylinder body of the rotary cylinder 2 and is aligned to the water outlet of the water cooling channel T in the rotary cylinder.

Two sets of telescopic pipe groups 5 are evenly distributed on a bottom plate of the shell of the distributing device shell 1, and the two sets of telescopic pipe groups are respectively as follows: the telescopic pipe group (I) EG01 and the telescopic pipe group (II) EG02 are arranged on the bottom plate of the distributor shell 1, and matched water hoses FP01 and FP02, a deflection driving mechanism 6 and a plugging power source 7 are further arranged on the bottom plate of the shell.

The deflection driving mechanism 6 drives a section of arc-shaped gearwheel (i.e. the driven gear 603) which is horizontally arranged above the telescopic pipe group 5 and fixedly connected with the telescopic pipe group 5 by adopting a motor reducer, and the axis of the gearwheel is coaxial with the rotation axis of the rotating cylinder 2. The plugging power source 7 is a pressure oil path generated by a hydraulic oil pump, and each of the extension pipes 503 and 504 is a hydraulic cylinder piston rod with double extension rods and is provided with a circular water path hole at the center. One end of each telescopic pipe 503, 504 is communicated with the pipeline of the water-cooled pump station 10 by water-through hoses FP01, FP02, wherein the lower telescopic pipe 503 is used as a water inlet waterway, and the upper telescopic pipe 504 is used as a water outlet waterway.

As shown in fig. 1, 2 and 3, one end (radially towards the inner end) of each telescopic tube 503, 504 is connected to and communicates with the male connector 402 of the double stop valve quick connector 4, and the two male connectors 402 of each telescopic tube set 5 are aligned with the two female connectors 401 of each water distributor set respectively in height position and are radially distanced when the telescopic tubes 503, 504 are in the retracted state.

The two female connectors 401 of each water distributor block 3 are rotated by a certain angle along with the rotary drum 2 to be aligned face to face (i.e. the male connector plugs are aligned with the female connector slots) with the two male connectors 402 fixed on the telescopic pipe block 5, so that the plugs of the male connectors 402 can be inserted into the slots of the female connectors 401, thereby realizing the connection and disconnection of the double stop valve quick connector 4.

After the water distributor group 3 and the telescopic pipe group 5 are connected by a double stop valve quick connector comprising a female connector 401 and a male connector 402, water flows out of the water-cooled pump station 10, flows into a telescopic pipe 503 serving as a water inlet pipe, flows into the distribution water pipe 301 through a water passage 304, then enters a water-cooled passage T, flows out of the water-cooled passage T, then flows into a telescopic pipe 504 serving as a water outlet pipe through another distribution water pipe 302 and a water passage 303 in sequence, and finally flows back to the water-cooled pump station 10 to form circulation.

In order to realize the matching connection between the telescopic pipe group 5 and the rotating water distributor group 3, the motor reducer is used for driving the arc-shaped large gear to provide deflection power for the telescopic pipe group 5, and certainly, the rotary driving force of the distributor can also be utilized, namely, a certain intermittent mechanism (such as a sheave mechanism) is designed on the rotary cylinder, so that the intermittent rotation and the plugging action of the telescopic pipe group are realized. When the deflection driving mechanism of the scheme is adopted, the number of the preferred deflection driving mechanisms 6 is matched with that of the telescopic pipe groups so as to realize one-to-one corresponding control, and a deflection power source in each deflection driving mechanism is fixedly arranged on the inner wall surface of the distributing device shell.

As shown in fig. 1 and 3, the lower end of each telescopic pipe group 5 is fixedly connected with a supporting chute 502, the supporting chute 502 is sleeved on a lower guiding supporting rail 501, and the guiding supporting rail 501 is fixedly connected to the bottom plate of the distributor housing 1. The guide support rail 501 may be a broken circular arc rail or a circular ring rail having a full circle. When the telescopic pipe groups are circular tracks, a circular track is arranged below each telescopic pipe group 5, and when the telescopic pipe groups are circular tracks, a plurality of telescopic pipe groups 5 can be arranged on the same circular track.

As shown in fig. 1, a C-shaped fixed protective cover 8 is preferably added to the outside of the telescopic tube assembly 5, and the protective cover may be a complete ring in circumferential shape, but is more preferably arranged to cover only a partial section of the telescopic tube assembly 5. A full turn of the rotating protection plate 9 is arranged at the radially outer end of the water distributor group 3. The joint part of the fixed protective cover 8 and the rotary protective plate 9 is provided with a gap, the joint part can adopt a labyrinth seal mode, and the space enclosed by the fixed protective cover 8 and the rotary protective plate 9 is sealed by inert gas under pressure. The water supply device adopts a protective cover and a protective plate, so that oil stain and dust pollution can be prevented, and structural work failure is avoided; and the local fixed protective cover not only saves the manufacturing cost, but also saves the maintenance space inside the distributing device.

A water supply method suitable for the blast furnace distributing device with the circulating water cooling device mainly comprises the following steps:

s1: the telescopic pipe group 5 is in a standby position, the telescopic pipes 503 and 504 are in a retraction state and do not interfere the water distributor group 3 to rotate together with the rotary cylinder 2;

s2: when the water distributor group 3 rotates to be close to the telescopic pipe group 5, the deflection driving mechanism 6 is started to drive the telescopic pipe group 5 to do angular acceleration movement in the same direction as the water distributor group 3;

s3: when the angular velocity of the telescopic tube set 5 accelerates to the same angular velocity as the water distributor set 3, the male connector 402 and the female connector 401 are in face-to-face alignment, i.e. the telescopic tube set 5 rotates synchronously with the water distributor set 3;

s4: when the telescopic pipe group 5 and the water distributor group 3 start to synchronously rotate, the plugging power source 7 for controlling the telescopic pipes is started, the two telescopic pipes and the male connectors 402 on the two telescopic pipes are simultaneously pushed towards the direction of the opposite female connector 401, after the valve cores in the female connector 401 and the male connector 402 are mutually jacked open, one of the two telescopic pipes in the telescopic pipe group 5 is used as a water inlet pipe and the other is used as a water outlet pipe, and the two telescopic pipes are simultaneously communicated with the water cooling channels in the corresponding rotary cylinders to form a circulation loop containing water supply and return;

s5: the water supply and water return processes are continued until the telescopic pipe group 5 synchronously rotates to the position near the limit position;

s6: when the telescopic pipe group 5 moves to the position near the limit position, the telescopic pipe is pulled out, and the water supply is finished;

s7: the telescopic pipe group reversely rotates to return to the standby position to prepare for the next water supply and water return operation.

As shown in fig. 3, continuous water supply and return to the water cooling channel T inside the rotary cylinder can be achieved by combining preferably two telescopic tube banks 5 with three water distributor banks 3.

The specific process is as follows: if the rotary drum 2 rotates clockwise at this time, the telescopic pipe group (first) EG01 supplies water and returns water to the water distributor group (first) WG01, and the telescopic pipe group (second) EG02 is standby; when the water supply of the telescopic pipe group (one) EG01 is completely disconnected with the WG01 of the water distributor group (one), the EG02 of the telescopic pipe group (two) is connected with the WG02 of the water distributor group (two) and water supply and water return are started, and the EG01 of the telescopic pipe group (one) returns to a standby position to prepare for water supply and water return of the WG03 of the water distributor group (three); when the telescopic pipe group (II) EG02 finishes supplying water to the water distributor group (II) WG02 and is disconnected, the telescopic pipe group (1) EG01 is connected with the water distributor group (III) WG03 and water supply and water return are started. The operation is repeated in turn, and continuous water supply and water return of the water-cooling channel T in the rotary cylinder are realized.

In addition, it should be noted that: the scheme can also be used for supplying other fluid media to the rotary drum of the distributing device, such as lubricating grease for a tilting mechanism arranged on the rotary drum, and only a telescopic pipe is added at the telescopic pipe group, a medium pipeline is additionally added at the water distributor group, and a double-stop valve quick connector is used for correspondingly connecting the added pipeline. The connection and disconnection interval time of the fluid medium can be different from the water supply interval time by utilizing the independence of the motion mechanism and adopting an independent control strategy. This principle is the same as the operation principle of the aforementioned device and is not described in detail here.

Finally, the above embodiments are only intended to illustrate the technical solutions of the present invention and not to limit the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the claims of the present invention.

Claims (10)

1. The utility model provides a circulating water cooling plant suitable for blast furnace distributing device, includes water-cooling pump station, its characterized in that: the water distributor group and the telescopic pipe group are also included; the water distributor group comprises two independently arranged water channels, one port of each water channel is connected with a female joint, and the other port of each water channel is connected with a water cooling channel arranged in the rotary cylinder through a distribution water pipe; the telescopic pipe group comprises two telescopic pipes which are independently arranged, one port of each telescopic pipe is connected with a male joint, and the other port of each telescopic pipe is connected with a water-cooling pump station through a water hose; the two telescopic pipes in the telescopic pipe group are electrically connected with a plugging power source and the plugging power source controls the telescopic state of the two telescopic pipes, and when the two telescopic pipes in the telescopic pipe group are in the extending state, the two male connectors on the two telescopic pipes are correspondingly matched and communicated with the two female connectors in the water distributor group to form a water cooling channel capable of circulating.

2. The circulating water cooling device suitable for the blast furnace distributor as claimed in claim 1, wherein: the deflection driving mechanism mainly comprises a deflection power source, and a driving gear and a driven gear which are meshed with each other; the driving gear is arranged at the output end of the deflection power source, and two telescopic pipes in the telescopic pipe group are arranged on the driven gear through the mounting frame and driven by the driven gear to deflect.

3. The circulating water cooling device suitable for the blast furnace distributor as claimed in claim 2, wherein: the mounting rack is provided with a supporting chute which is embedded on the guide supporting rail in a clamping manner so as to enable the deflected mounting rack to rotate along the guide supporting rail.

4. The circulating water cooling device suitable for the blast furnace distributor as claimed in claim 3, wherein: the female joint and the male joint which are matched with each other are double stop valve quick joints.

5. A blast furnace distributing device comprises a distributing device shell, a rotary drum which is suspended in the distributing device shell and is coaxially arranged with the central axis of a blast furnace; the method is characterized in that: the circulating water cooling device of claim 3 or 4, wherein the guide support rail is a circular arc rail which is coaxially arranged on the periphery of the rotary cylinder.

6. The blast furnace distributor of claim 5, wherein: the water distributor groups are at least three groups and are uniformly distributed around the circumference of the rotary cylinder; at least two groups of telescopic pipe groups are arranged on the periphery of the rotary cylinder and matched with the water distributor groups.

7. The blast furnace distributor of claim 6, wherein: the guide support rail is a circular ring rail and is fixedly arranged on the distributing device shell; the mounting rack of each telescopic pipe group is arranged on the circular ring track.

8. The blast furnace distributor of claim 6, wherein: the deflection driving mechanisms are matched with the telescopic pipe groups in number to realize one-to-one corresponding control, and a deflection power source in each deflection driving mechanism is fixedly arranged on the distributing device shell.

9. A water supply method suitable for the blast furnace distributing device as claimed in any one of claims 6 to 8, characterized by mainly comprising the following steps:

s1: the telescopic pipe group is in a standby position, the telescopic pipe is in a retraction state and does not interfere the water distributor group to rotate along with the rotating cylinder;

s2: when the water distributor group rotates to be close to the telescopic pipe group, the deflection driving mechanism is started to drive the telescopic pipe group to do angular acceleration movement in the same direction as the water distributor group;

s3: when the angular velocity of the telescoping tube bank accelerates to the same angular velocity as the water distributor bank, the male and female fittings are in face-to-face alignment, i.e., the telescoping tube bank and the water distributor bank rotate synchronously;

s4: when the telescopic pipe group and the water distributor group start to synchronously rotate, the plugging power source of the telescopic pipes is started and controlled, the two telescopic pipes and the male connectors on the two telescopic pipes are simultaneously pushed towards the opposite female connectors, after the valve cores in the female connectors and the male connectors are mutually jacked, one of the two telescopic pipes in the telescopic pipe group is used as a water inlet pipe and the other is used as a water outlet pipe, and the two telescopic pipes are simultaneously communicated with the water cooling channel in the corresponding rotary cylinder to form a circulation loop containing water supply and return;

s5: the water supply and return processes are continued until the telescopic pipe group synchronously rotates to the position near the limit position;

s6: when the telescopic pipe group moves to the position near the limit position, the telescopic pipe is pulled out, and the water supply is finished;

s7: the telescopic pipe group reversely rotates to return to the standby position to prepare for the next water supply and water return operation.

10. The water supply method according to claim 9, wherein: when the telescopic pipe group for supplying water finishes supplying water, the other telescopic pipe groups just start to cooperate with the other water distributor groups for supplying water.

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