CN212321185U

CN212321185U - Blowing-down sampler at blast furnace tuyere

Info

Publication number: CN212321185U
Application number: CN202020171041.8U
Authority: CN
Inventors: 宗品禾
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-02-15
Filing date: 2020-02-15
Publication date: 2021-01-08
Anticipated expiration: 2030-02-15

Abstract

The utility model relates to a sampling device for damping down at a blast furnace ironmaking tuyere, which belongs to the technical field of machinery. The utility model discloses a blast furnace tuyere sampling machine that calms down, including motor drive's chassis running gear, chassis running gear divide into crawler-type chassis and four-wheel chassis, settles front and back guide bracket on the chassis, automatically controlled cabinet, power station, motor, control cabinet and operation panel, the sampling tube of taking tooth head and distancer is put to the support inboard, settle clamping device on the sampling tube, clamping device has the sprocket or the gear of drive sampling tube motion. The beneficial effects are as follows: the sampling pipe does not need water cooling, can carry out rotary in-situ sampling, has large sampling amount, simple and convenient operation, small occupied area and high automation degree, can carry out omnibearing sampling on a blast furnace tuyere during blowing down, achieves the aim of saving energy and increasing yield, improves the production efficiency of the blast furnace, reduces the cost, fills the blank of the domestic technology, and reaches the advanced level in the world.

Description

Blowing-down sampler at blast furnace tuyere

Technical Field

The utility model relates to a sampling device for damping down at a blast furnace ironmaking tuyere, which belongs to the technical field of machinery.

Background

At present, a blast furnace tuyere damping sampling machine adopts a water cooling sampling method, particularly a sampling pipe adopts water cooling, and materials in the center of a furnace are taken out when the blast furnace is damped. The sampling machine has great potential safety hazard, if the sampling pipe leaks water in the furnace, the sampling pipe is immediately melted at the temperature of 1600-2500 ℃, cooling water can enter the furnace to form high-pressure gas in a large amount, furnace burden in the furnace is sprayed out of a tuyere, great safety production accidents can be caused, meanwhile, a sampling method used by the sampling pipe does not necessarily represent the position of an actual material sample in the furnace completely, especially, the furnace burden in the furnace is caked under the condition of poor furnace condition, the furnace burden can be displaced when the sampling pipe is inserted into the furnace, and the sampled material samples are not enough due to small sampling pipe diameter, so that the sampling machine has a great number of defects and potential safety hazard, has a complex structure and a large volume, and cannot realize all-dimensional sampling. For the safety production sampling, aiming at the actual situation of the current blast furnace, a blast furnace tuyere damping-down sampling machine which is safe, convenient to operate, more in material taking, accurate in position, simple in structure, safe, reliable and capable of sampling in all directions is urgently needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at that the sample that exists to prior art is few, and is unsafe, can not all-round sample, easily takes place multiple defects such as raw displacement during the sample, provides a safe sample when damping down, need not the water-cooling, realizes the accurate and big sampling tube of sample volume of sample through rotatory sample, and it can satisfy the technical analysis requirement, easy operation, and degree of automation is high, can the on-the-spot sample needs of fully provided blast furnace.

The utility model discloses a technical problem is solved to following technical scheme: a blast furnace tuyere damping sampler comprises a chassis travelling mechanism driven by a motor, wherein the chassis travelling mechanism is divided into a crawler-type chassis and a four-wheel chassis, a front guide support and a rear guide support are arranged on the chassis, a sampling tube with a tooth head and a distance meter is arranged in the supports, a clamping device is arranged on the sampling tube, the clamping device is provided with a rotating chain wheel or gear, a power station, a motor, a transmission device, an electric control cabinet, a control console and an operation console which are connected by a control pipeline and a control cable are arranged on the chassis, the chassis is controlled by the control console and the operation console to travel to a specified sampling tuyere from front to back and left and right under the action of the power station, the clamping device clamps the sampling tube, the motor drives the chain wheel or the gear to rotate the clamping device, the clamping device drives the sampling tube to move, and the chassis overcomes the resistance of the sampling tube in the furnace under the action of the control console, and the sampling tube enters the furnace burden in situ in the rotating process, the distance meter automatically measures the furnace burden to reach a specified depth, the chassis retreats under the action of the operation platform, and the sampling tube is pulled out to realize sampling. The chassis combines manual control and automatic control, and has simple operation and high automation degree.

Furthermore, the sampling tube clamping device adopts hydraulic pressure clamping, pneumatic pressure clamping or mechanical force clamping, the clamping pressure head adopts three-point clamping, each point is separated by 120 degrees, or two-point or multi-point clamping is adopted, the acting point has an arc surface which is the same as that of the sampling tube, and the friction force is increased. The piston rod of the clamping cylinder, the air cylinder or the mechanical clamping cylinder pulls the pull rod to enable the pressing arm and the pressing head to tightly hold the sampling tube to generate friction force, the motor and the chain wheel or the gear drive the coupling, the pressing arm and the pressing head to rotate, the chuck drives the pressing arm, the pressing head and the sampling tube to rotate, the sampling tube moves left and right under the action of the chassis and the rear guide support, the sampling tube rotates while being pushed into the furnace, and furnace burden enters the sampling tube in the original position.

The sampling pipe is provided with a thorn-shaped head, the furnace burden is cut in the sampling process, and the sampled position is accurate and can represent the real position in the furnace. Does not contain cooling water, and is safe and reliable. The sampling tube adopts multi-section connection, and the furnace charge enters the sampling tube in situ while rotating under the action of the clamping device. The sampling tubes are connected in sections, so that actual sampling is facilitated, the space of a blast furnace platform is saved, and damping down sampling operation is facilitated. The sampling tube adopts the rotation propulsion mode to sample, and the sample volume is big. The range finder is arranged in a tail section museum of the sampling tube, and the sampling depth can be measured in time.

The sampling clamping device is provided with a chain wheel or a gear device, the motor drives the chain wheel or the gear to drive the clamping device to clamp and drive the sampling tube to move, the bur at the head of the sampling tube cuts furnace burden, and the burden enters the sampling tube in situ.

And a range finder capable of measuring the sampling depth in time is arranged in the tail section hall of the sampling tube.

The chassis is provided with a front guide support and a rear guide support, the rear guide support is connected with a clamping device, the chassis drives the rear guide support and the clamping device under the control of an operation table, and the sampling tube rotates and pushes towards the inside of the furnace under the action of a motor and the chassis under the action of the clamping device, so that the purpose of rotary sampling is achieved.

The console is controlled manually or remotely by an electric motor.

The power station takes an engine or an electric motor as a power source, and the motor adopts a hydraulic motor, a pneumatic motor or an electric motor.

The crawler-type chassis is controlled and driven by a hydraulic or pneumatic motor, the four-wheel chassis is driven by a motor, the four wheels move on a track set by the platform, the central line of the track and the central line of the air port are on a balanced straight line, the motor drives a chain, and the chassis moves back and forth to drive the sampling tube, so that the purpose of sampling is achieved.

The utility model discloses still further provide the sampling method of blast furnace wind gap damping down sampler, including following step: the automatic sampling device comprises a base plate, an operation platform, a motor, a chain wheel or a gear, a motor, a sampling tube, a distance meter and a clamping device, wherein the base plate is controlled by the operation platform to walk to a designated sampling air port all around under the action of the power station, the clamping device clamps the sampling tube, the motor drives the chain wheel or the gear to enable the sampling tube to rotate, the base plate overcomes the resistance of the sampling tube in a furnace under the action of the operation platform, the sampling tube moves left and right under the action of the operation platform, the base plate rotates and pushes the sampling tube into the furnace, furnace burden is collected into the tube in situ, the base plate retreats under the action. The method comprises the following steps: the clamping cylinder, the air cylinder or the mechanical clamping cylinder pulls the pull rod to enable the pressure arm and the pressure head to tightly hold the sampling tube to generate friction force, the coupling shaft drives the chuck to rotate under the driving of the motor and the chain wheel or the gear, the chuck drives the sampling tube to rotate, the sampling tube is enabled to move left and right under the action of the chassis and the rear guide support, the sampling tube rotates and pushes towards the furnace at the same time, furnace burden enters the sampling tube in situ to achieve the purpose of sampling, and otherwise the sampling tube exits the furnace. The clamping technology is adopted for sampling, the performance of small equipment occupying the space in the whole sampling process is advanced, the sampling can be carried out around the tuyere of the blast furnace for a circle, and the sampling machine is superior to the existing sampling machine which can only carry out local sampling.

The utility model has the advantages that: the sampling pipe does not need water cooling, can carry out rotary in-situ sampling, fully realizes the safe sampling of damping down in the furnace, has large sampling amount, simple and convenient operation, small occupied area and high automation degree, can carry out all-dimensional sampling on a blast furnace tuyere during damping down, obtains the purposes of saving energy and increasing yield, improves the production efficiency of the blast furnace, reduces the cost, fills the technical blank in China and reaches the advanced level in the world.

Drawings

FIG. 1 is a schematic view of a blast furnace tuyere damping down sampler.

Fig. 2 is a view taken along direction a of fig. 1.

FIG. 3 is a view showing the construction of the sampling tube holding device.

FIG. 4 is a view of a multi-section threaded connection of a sampling tube.

Fig. 5 is a four-wheel chassis rail motion diagram.

The reference numbers in the above figures are: 1. the device comprises a sampling tube, 2 parts of a chassis, 3 parts of a front guide support, 4 parts of a power station, 5 parts of a motor, 6 parts of a clamping device, 7 parts of a distance measuring instrument, 8 parts of an operation table, 9 parts of a control table, 10 parts of a control cabinet, 11 parts of a mechanical balance weight, 12 parts of a clamping cylinder, 13 parts of a connecting block, 14 parts of an end cover, 15 parts of a chain wheel or a gear, 16 parts of a pull rod, 17 parts of a coupling shaft, 18 parts of a pressing arm, 19 parts of a pressing head, 20 parts of a clamping head, 21 parts of a rear guide support, 22 parts of a guide rail, 23 parts of a front connecting seat, 24 parts of.

Detailed Description

Example 1

The structure of this embodiment is as shown in fig. 1 to fig. 3, a blast furnace tuyere damping down sampler, a chassis 2 is of a crawler type, a sampling tube 1 is driven by a motor to pass through a front guide support 3, a rear guide support 21, a clamping device 6 and a sampling tube rotating motor 5, and under the action of a power station 4, an operation table 8, a control table 9 and a control cabinet 10, the sampling tube 1 rotates and enters the furnace along the central line of a tuyere under the pushing of the chassis 2. The prick at the head of the sampling tube 1 cuts the furnace burden during the rotation, the sampling tube 1 enters the furnace according to the central line of the tuyere under the action of a chuck 20, a pressure arm 18, a pressure head 19, a clamping cylinder 12, a pull rod 16, an end cover 14, a connecting block 13, a chain wheel 15 or a gear and a coupling 17, the furnace burden enters the sampling tube in situ, the distance measuring instrument 7 automatically measures the sampling depth in the process that the sampling tube enters the furnace, after the sampling depth is reached, the chassis 2 retreats under the action of an operation table 8 and a control table 9, or can retreat under the action of automatic control or manual control, so that the sampling tube 1 retreats out of the furnace, and the furnace burden taken out of the furnace is taken out of the furnace in the sampling tube, thereby achieving the purpose. In order to increase the friction force between the chassis and the ground, the mechanical counterweight 11 is arranged on the chassis, and the larger the thrust force of the sampling tube is, the larger the friction force between the chassis and the ground is, and the heavier the mechanical counterweight is. The sampling tube 1 is connected by section screw thread, as shown in fig. 4, after the sampling tube is pulled out of the furnace, the clamping head 20 is loosened, the sampling tube is taken out, the sampling tube is cut by a cutting gun to collect samples, and the sampling is completed.

Example 2

The general structure of the present embodiment is the same as that of embodiment 1, except that the chassis 2 is a four-wheel chassis running mechanism, as shown in fig. 5, the chassis 2 of the blast furnace damping down sampler is arranged in a guide rail 22, the chassis running mechanism is driven by a motor, and the front connecting seat 23 and the rear connecting seat 25 are connected through a chain 24, so that the chassis moves left and right on the guide rail.

In addition to the above embodiments, the present invention can also have other embodiments. All the technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the protection scope claimed by the present invention.

Claims

1. Blast furnace tuyere sampling machine of blowing down includes by motor drive's chassis running gear, its characterized in that: the chassis walking mechanism comprises a crawler-type chassis and a four-wheel chassis, a front and rear guide support is arranged on the chassis, a sampling tube with a gear head and a distance meter is arranged in the support, a clamping device is arranged on the sampling tube, the clamping device is provided with a rotating chain wheel or gear, a power station, a motor, a transmission device, an electric control cabinet, a control console and an operation platform which are connected by a control pipeline and a control cable are arranged on the chassis, the chassis is controlled by the control console and the operation platform to walk to a specified sampling air port from front to back and from left to right under the action of the power station, the clamping device clamps the sampling tube, the motor drives the chain wheel or the gear to rotate the clamping device, the clamping device drives the sampling tube to move, the chassis overcomes the resistance of the sampling tube in the furnace under the action of the control console and the operation platform, furnace burden enters the tube in situ in the rotating process of the sampling tube, and reaches a specified depth, the chassis retreats under the action of the operating platform, and the sampling tube is pulled out.

2. The blast furnace tuyere damping down sampler of claim 1, wherein: the sampling tube clamping device adopts hydraulic pressure clamping, pneumatic pressure clamping or mechanical force clamping, a clamping pressure head adopts three-point clamping, each point is separated by 120 degrees, or adopts two-point or multi-point clamping, an acting point is provided with an arc surface which is equal to that of the sampling tube, a piston rod of a clamping oil cylinder, an air cylinder or a mechanical clamping cylinder pulls a pull rod to enable a pressure arm and the pressure head to tightly hold the sampling tube to generate friction, a motor and a chain wheel or a gear drive a coupling, the pressure arm and the pressure head to rotate, a chuck drives the pressure arm, the pressure head and the sampling tube to rotate, the sampling tube moves left and right under the action of a chassis and a rear guide support, the sampling tube rotates and pushes towards a furnace, and furnace burden enters the sampling tube in situ.

3. The blast furnace tuyere damping down sampler of claim 1, wherein: the sampling tube is provided with a thorn-shaped head, the furnace burden is cut in the sampling process without cooling water, the sampling tube adopts multi-section connection, the furnace burden enters the sampling tube in the original position while rotating under the action of the clamping device, and the sampling tube adopts segmented connection.

4. The blast furnace tuyere damping down sampler of claim 2, wherein: the sampling tube clamping device is provided with a chain wheel or a gear device, a motor drives the chain wheel or the gear to drive the clamping device to clamp and drive the sampling tube to move, the furnace burden is cut by the burr at the head of the sampling tube, and the furnace burden enters the sampling tube in situ.

5. The blast furnace tuyere damping down sampler of claim 1, wherein: and a range finder capable of measuring the sampling depth in time is arranged in the tail section hall of the sampling tube.

6. The blast furnace tuyere damping down sampler of claim 1, wherein: the rear guide support is connected with the clamping device, the chassis drives the rear guide support and the clamping device under the control of the operating platform, and the sampling tube rotates and pushes the sampling tube into the furnace to perform rotary sampling under the action of the clamping device and the motor and the chassis.

7. The blast furnace tuyere damping down sampler of claim 1, wherein: the console is controlled manually or remotely by an electric motor.

8. The blast furnace tuyere damping down sampler of claim 1, wherein: the power station takes an engine or an electric motor as a power source, and the motor adopts a hydraulic motor, a pneumatic motor or an electric motor.

9. The blast furnace tuyere damping down sampler of claim 1, wherein: the crawler-type chassis is controlled and driven by a hydraulic or pneumatic motor, the four-wheel chassis is driven by a motor, the four wheels move on a track set by the platform, the central line of the track and the central line of the air port are on a balanced straight line, the motor drives a chain, and the chassis moves back and forth to drive the sampling tube.