CN218539546U

CN218539546U - Control device for large material discharge door of vertical cooler for lime calcination

Info

Publication number: CN218539546U
Application number: CN202221667541.6U
Authority: CN
Inventors: 叶锋; 周冬生; 魏戈; 高轲; 李晨光; 文凤; 朱云清; 位海峰; 韩正阳; 陈奎良
Original assignee: CITIC Heavy Industries Co Ltd; CITIC Heavy Industry Engineering Technology Co Ltd
Current assignee: CITIC Heavy Industries Co Ltd; CITIC Heavy Industry Engineering Technology Co Ltd
Priority date: 2022-06-30
Filing date: 2022-06-30
Publication date: 2023-02-28
Anticipated expiration: 2032-06-30

Abstract

The utility model discloses a control device of a large material discharge door of a vertical cooler for lime calcination, which comprises a cylinder and an air source, wherein the end part of a piston rod of the cylinder is hinged with the middle part of the large material discharge door, and a rod cavity and a rodless cavity of the cylinder are respectively communicated with an air inlet and an air outlet of a pneumatic valve; the main pipe interface of the gas source is connected with the first ball valve and the filter through pipelines in sequence, the gas outlet end of the filter is connected with the gas inlet ends of the second ball valve and the third ball valve through pipelines respectively, and the gas outlet ends of the second ball valve and the third ball valve are connected with the first dispersing port and the second dispersing port through a fourth ball valve and a fifth ball valve through pipelines respectively; the air outlet ends of the second ball valve and the third ball valve are also connected with an air inlet and an air outlet of the pneumatic valve through pipelines and hoses. The utility model discloses simple structure easily realizes, low cost, and the compressed air who utilizes the air supply is via the ball valve operation of different branch roads, and the air inlet, the gas vent that control the pneumatic valve realize aerifing and exhausting the cylinder to realize opening and closing of the big material clearing door.

Description

Control device for large material discharge door of vertical cooler for lime calcination

Technical Field

The utility model belongs to the technical field of lime rotary kiln calcination equipment technique and specifically relates to a control device that vertical cooler aniseed was cleared up out to lime calcination.

Background

The active lime is used as a slag former for steelmaking, and can accelerate the smelting and slagging speed, shorten the smelting time, reduce the consumption of lime per ton of steel, reduce the introduction of impurities and greatly improve the quality of molten steel. At present, the project of producing active lime by calcining limestone with a rotary kiln is very popular in China. In the process of calcining limestone, ring formation can occur in the rotary kiln, large materials are formed after falling off, and in order to not influence continuous production, the large materials need to be removed in time. The vertical cooler is therefore provided with a large material discharge door in order to discharge these large materials in a timely manner. At present, most of large material discharge doors adopt cylinders, and piston rods of the cylinders are used for pushing the large material discharge doors to be opened and closed; meanwhile, a two-position five-way electromagnetic valve is arranged to change the direction of gas so as to control the opening and closing of the large material door.

The opening and closing of the large material discharge door of the lime calcination vertical cooler are usually realized by switching the air supply of a compressed air pipeline by adopting an electromagnetic directional valve, and the following problems exist: 1. the mode of adopting the electromagnetic directional valve generally needs to manually open and close the valve on a central control room computer, even if a field control box is arranged, the field and remote modes need to be frequently switched, so that the operation is inconvenient, the service life of equipment such as the control box is also shortened, the control box is generally used under special conditions, and the control box is mostly operated on the central control room computer under the conventional operation condition, so that the back-and-forth communication of field and central control room operators is increased, and even misoperation exists; 2. the large material discharging door on the vertical cooler has a bad environment, more dust and more failure frequency of the electromagnetic valve and the like, so the service life is greatly influenced; 3. the arrangement of the electromagnetic valve and other equipment needs to increase cable laying and electric control cabinet contacts, so that the investment cost is increased.

Disclosure of Invention

The utility model aims at providing a simple structure, excellent in use effect's lime calcines vertical cooler aniseed clearing door's controlling means for solving among the prior art electromagnetic directional valve of aniseed clearing door frequently leads to the problem of breaking down or damaging because of using under adverse circumstances.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a control device of a large material discharge door of a vertical cooler for lime calcination comprises a cylinder and a gas source, wherein the end part of a piston rod of the cylinder is hinged with the middle part of the large material discharge door, and a rod cavity and a rodless cavity of the cylinder are respectively communicated with a gas inlet and a gas outlet of a pneumatic valve; the main pipe interface of the gas source is connected with the first ball valve and the filter through pipelines in sequence, the gas outlet end of the filter is connected with the gas inlet ends of the second ball valve and the third ball valve through pipelines respectively, and the gas outlet ends of the second ball valve and the third ball valve are connected with the first diffusion opening and the second diffusion opening through the fourth ball valve and the fifth ball valve through pipelines respectively; the air outlet ends of the second ball valve and the third ball valve are also connected with the air inlet and the air outlet of the pneumatic valve through pipelines and hoses.

Further, the pipeline is a seamless steel pipe.

Due to the adoption of the technical scheme, the utility model discloses have following superiority:

the control device for the large material discharge door of the vertical cooler for lime calcination has the advantages of simple structure, easiness in realization, simplicity and convenience in operation and low cost, and the compressed air of an air source is operated by the ball valves of different branches to control the air inlet and the air outlet of the pneumatic valve to realize inflation and exhaust of the air cylinder, so that the large material discharge door is opened and closed; under the adverse circumstances of high dust, utilize simple pipeline and valves completely just can realize calcining the opening and closing of vertical cooler bulk cargo door of clearing out to lime, avoid the unable condition of acting of bulk cargo door because of the solenoid valve trouble arouses, reduce on-the-spot personnel and central control room operating personnel's communication frequency, avoid unnecessary maloperation, also greatly reduced simultaneously investment cost.

Drawings

FIG. 1 is a schematic structural view of a control device of a large material discharge door of a vertical cooler for lime calcination according to the present invention;

in the figure: 1-a manifold port; 2-a first ball valve; 3-a filter; 4-a pipeline; 5-a first dispensing opening; 6-a fourth ball valve; 7-a hose; 8-air inlet; 9-an exhaust port; 10-a second ball valve; 11-a third ball valve; 12-a fifth ball valve; 13-second dispensing orifice.

Detailed Description

The technical solution of the present invention will be further described in detail with reference to the accompanying drawings and examples.

As shown in figure 1, the control device of the large material discharge door of the vertical cooler for lime calcination comprises a cylinder and an air source, wherein the end part of a piston rod of the cylinder is hinged with the middle part of the large material discharge door, and a rod cavity and a rodless cavity of the cylinder are respectively communicated with an air inlet and an air outlet of a pneumatic valve; the main pipe joint 1 of the gas source is connected with a first ball valve 2 and a filter 3 through pipelines in sequence, the gas outlet end of the filter is divided into two branches through a pipeline 4, a second ball valve 10 and a third ball valve 11 are respectively arranged on the two branches, and the gas outlet ends of the second ball valve and the third ball valve are respectively connected with a first diffusing port 5 and a second diffusing port 13 through a fourth ball valve 6 and a fifth ball valve 12 through pipelines; the air outlet ends of the second ball valve 10 and the third ball valve 11 are also connected with the air inlet 8 and the air outlet 9 of the pneumatic valve through pipelines and metal hoses 7.

The pipeline is a seamless steel pipe.

The utility model discloses control device that the vertical cooler aniseed was cleared up out to lime calcination, its working process is: opening the first ball valve 2, opening the second ball valve 10 and the fifth ball valve 12 under the condition that large materials exist in the rotary kiln, closing the third ball valve 11 and the fourth ball valve 6, inflating an air inlet 8 of the pneumatic valve by compressed air output by an air source through the first ball valve 2, the filter 3 and the second ball valve 10 to inflate a rod cavity of the air cylinder, extending a piston rod under the action of pressure difference of two cavities of the air cylinder, and pushing a large material clearing door to open and discharge the large materials; when the big materials are completely removed, the second ball valve 10 and the fifth ball valve 12 are closed at the moment, the third ball valve 11 and the fourth ball valve 6 are opened, the compressed air output by the air source inflates the exhaust port 9 of the pneumatic valve through the first ball valve 2, the filter 3 and the third ball valve 11 at the moment, so that the rodless cavity of the cylinder is inflated, the gas in the rod cavity of the cylinder is emptied through the first release port 5, the piston rod retracts under the action of the pressure difference between the two cavities of the cylinder, and the big material clearing door is closed.

According to the working process, the air inlet 8 of the pneumatic valve is inflated to open the large material discharge door; and (4) inflating an exhaust port 9 of the pneumatic valve to close the large material discharge door.

In the control device of the large material discharge door of the lime calcination vertical cooler, the rodless cavity and the rod cavity of the cylinder can be respectively communicated with the air inlet and the air outlet of the pneumatic valve; setting the air inlet 8 of the pneumatic valve to be inflated so as to close the large material discharge door; inflating an exhaust port 9 of the pneumatic valve to open a large material discharge door; the working process is as follows: opening the first ball valve 2, opening the third ball valve 11 and the fourth ball valve 6 under the condition that large materials exist in the rotary kiln, closing the second ball valve 10 and the fifth ball valve 12, inflating an exhaust port 9 of the pneumatic valve by compressed air output by an air source through the first ball valve 2, the filter 3 and the third ball valve 11 to inflate a rod cavity of the air cylinder, extending a piston rod under the action of pressure difference of two cavities of the air cylinder, and pushing a large material clearing door to open and discharge the large materials; when the large material is completely removed, the second ball valve 10 and the fifth ball valve 12 are opened, the third ball valve 11 and the fourth ball valve 6 are closed, the compressed air output by the air source inflates the air inlet 8 of the pneumatic valve through the first ball valve 2, the filter 3 and the second ball valve 10, the rodless cavity of the air cylinder is inflated, the gas in the rod cavity of the air cylinder is emptied through the second release port 13, the piston rod retracts under the action of the pressure difference between the two cavities of the air cylinder, and the large material clearing door is closed.

The above is only the preferred embodiment of the present invention, not the limitation of the present invention, without departing from the spirit and scope of the present invention, all should belong to the patent protection scope of the present invention in the equal variation and modification made by the claims of the present invention.

Claims

1. A control device of a large material discharge door of a vertical cooler for lime calcination comprises a cylinder and a gas source, wherein the end part of a piston rod of the cylinder is hinged with the middle part of the large material discharge door, and a rod cavity and a rodless cavity of the cylinder are respectively communicated with a gas inlet and a gas outlet of a pneumatic valve; the method is characterized in that: the main pipe interface of the air source is connected with a first ball valve and a filter through pipelines in sequence, the air outlet end of the filter is connected with the air inlet ends of a second ball valve and a third ball valve through pipelines respectively, and the air outlet ends of the second ball valve and the third ball valve are connected with a first scattering port and a second scattering port through a fourth ball valve and a fifth ball valve through pipelines respectively; the air outlet ends of the second ball valve and the third ball valve are also connected with an air inlet and an air outlet of the pneumatic valve through pipelines and hoses; the pipeline is a seamless steel pipe.