CN111022391A - Interlocking pneumatic control system for slag outlet door - Google Patents

Interlocking pneumatic control system for slag outlet door Download PDF

Info

Publication number
CN111022391A
CN111022391A CN201911216840.0A CN201911216840A CN111022391A CN 111022391 A CN111022391 A CN 111022391A CN 201911216840 A CN201911216840 A CN 201911216840A CN 111022391 A CN111022391 A CN 111022391A
Authority
CN
China
Prior art keywords
cavity
travel switch
valve
pneumatic control
air
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.)
Granted
Application number
CN201911216840.0A
Other languages
Chinese (zh)
Other versions
CN111022391B (en
Inventor
沈永华
沈铭隆
项光云
季永早
项鹏豪
季温特
吴国雄
张圣洁
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.)
ZHEJIANG TANLET MACHINERY CO LTD
Original Assignee
ZHEJIANG TANLET MACHINERY CO LTD
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ZHEJIANG TANLET MACHINERY CO LTD filed Critical ZHEJIANG TANLET MACHINERY CO LTD
Priority to CN201911216840.0A priority Critical patent/CN111022391B/en
Publication of CN111022391A publication Critical patent/CN111022391A/en
Application granted granted Critical
Publication of CN111022391B publication Critical patent/CN111022391B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/06—Servomotor systems without provision for follow-up action; Circuits therefor involving features specific to the use of a compressible medium, e.g. air, steam
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F17/00—Special devices for shifting a plurality of wings operated simultaneously
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F3/00—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices
    • E05F3/02—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with pneumatic piston brakes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
    • F15B11/20—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors controlling several interacting or sequentially-operating members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
    • F15B13/07—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors in distinct sequence

Abstract

The invention discloses a slag discharging door interlocking pneumatic control system, which comprises an air source, an air cylinder, a first pneumatic control valve, a second pneumatic control valve, a first manual valve, a second manual valve, a first travel switch, a second travel switch, a third travel switch, a three-way joint and a shuttle valve, wherein in the technical scheme, a cover is closed and a locking position is locked, the manual cover opening function is invalid, and in order to ensure that two paths of air signals of the first pneumatic control valve are simultaneously cut off, 2 paths of mechanical travel switch air valves are adopted; when the cylinder reaches an unlocking position, 2 mechanical travel switch air valves are triggered at the same time, but only 1 of the mechanical travel switch air valves can be normally used; the travel switch and the locking air circuit ensure the only air signal circuit for closing the cover through the shuttle valve; the first pneumatic control valve and the second pneumatic control valve switch the action of the cylinder by a pneumatic signal, and the cylinder triggers the first travel switch at a cover closing position to enable the second manual valve to send a pneumatic signal to the second pneumatic control valve for switching locking and unlocking actions; the structure design is reasonable, and the operation sequence is unique, convenient to operate, safe and reliable.

Description

Interlocking pneumatic control system for slag outlet door
Technical Field
The invention relates to the technical field of mechanical equipment, in particular to a slag outlet door interlocking pneumatic control system.
Background
The existing slag discharging door device consists of two parts, namely a door cover and a rotary locking part, wherein the two parts are respectively driven by two groups of cylinders to respectively drive the door cover and the rotary locking part of the device. The rotary locking is a safety device, and safety accidents and material loss caused by sudden opening of the door cover due to accidents are prevented. When the equipment is in a normal process, the reciprocating action of the air cylinder is completed through a manual control valve, referring to fig. 1, a manual valve 1 is in an open-cover and close-cover state, and a manual valve 2 is in an unlocked and locked state. The manual valve 2 is firstly used for unlocking, the revolving door is opened, then the manual valve 1 is used for opening the cover, and the cover door is opened. And cleaning waste residues in the tank body, closing the cover by using the manual valve 1 after treatment, closing the cover door, locking by using the manual valve 2, and closing the rotary door. Namely, the operation sequence is unlocking, uncovering, covering and locking, and any action violating the operation sequence cannot occur in the process, so that equipment can be damaged, safety accidents and material loss in the tank body can be caused, potential safety hazards exist, and the practicability is poor.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the interlocking pneumatic control system for the slag discharging door, which has the advantages of reasonable structural design, uniqueness of operation sequence, convenience in operation, safety and reliability.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a slag tap door interlocking pneumatic control system, includes air supply and cylinder, still includes first gas accuse valve, second gas accuse valve, first manual valve, the manual valve of second, first travel switch, second travel switch and third travel switch, three way connection and shuttle valve, and concrete operation includes following step:
(1) checking whether the installation of each mechanical air valve is correct; checking whether each mechanical air valve works normally; before operation, a cylinder interface on the pneumatic control box is blocked by a pipe plug to prevent the cylinder from working; a pneumatic control box is correctly connected to a mechanical travel switch air pipeline;
(2) the hand-operated valve handle is turned to a closing cover and locking position for ventilation;
(3) checking the first travel switch, pressing the roller by hand when the port P is inflated, and exhausting air from the port A; a second travel switch, wherein the port P is aerated, the roller is pressed by hand, and the port A is aerated; the third travel switch, P port is airless;
(4) the hand-operated valve is turned to the uncovering position, the third travel switch is checked, the port P is inflated, the hand presses the roller, and the port A is inflated; the second travel switch is connected with the air inlet P;
(5) when the hand-operated valve is turned to the unlocking position, the first travel switch is turned, and the P port is air-free;
(6) and the cylinder pipeline is correctly connected.
Preferably, the initial state: the hand-operated valve handle is turned to the closing cover and locking position,
(1) when the handle is rotated to the cover closing position, the door locking cylinder can be freely opened and closed;
(2) the handle rotates to an unlocking position, and the door opening cylinder can be freely opened and closed;
(3) when the handle rotates to a locking position, the opening and closing functions of the door opening cylinder are invalid;
(4) when the handle rotates to the uncovering position, the opening and closing functions of the door locking cylinder fail.
Preferably, in the closed and locked state:
the cavity 2 of the first manual valve and the cavity 2 of the second manual valve are both in an air state, the cavity 2 of the first manual valve and the cavity 1 of the third travel switch are both in an air state, the cavity 4 of the first manual valve is communicated with the cavity 1 of the second travel switch, the second travel switch and the third travel switch are both in a closed state, the cavity 1 and the cavity 2 of the second travel switch and the cavity 2 of the third travel switch are in an open state, the first travel switch is in an open state, and the cavity 1 and the cavity 2 of the first travel switch are in an open state; the No. 2 cavity of the second manual valve is directly communicated with the No. 7 cavity of the first pneumatic control valve and/or the No. 3 cavity of the shuttle valve through a three-way joint to indirectly control the No. 7 cavity of the first pneumatic control valve, and the first pneumatic control valve enables the cover closing and locking air inlet of the air cylinder to always have air pressure; in the state, the first manual valve is operated to switch to the uncovering state, the No. 2 cavity is deflated, the No. 4 cavity is inflated, the No. 1 cavity of the second travel switch is inflated, and the second travel switch and the third travel switch are still closed, the No. 6 cavity of the first pneumatic control valve is not inflated, the first pneumatic control valve does not act, and therefore the door cover does not act; continuing to operate the second manual valve, switching to an unlocking state, and keeping the original state after the No. 7 cavity of the first pneumatic control valve loses air; the No. 7 cavity of the second pneumatic control valve is exhausted, the No. 6 cavity of the second pneumatic control valve is ventilated, the second pneumatic control valve is reversed, and the revolving door locking cylinder starts to act; after the cylinder is in place, unlocking is completed, the second travel switch and the third travel switch are triggered, the second travel switch and the third travel switch are simultaneously opened, the cavity 1 of the second travel switch is directly communicated with the cavity 6 of the first pneumatic control valve, the first pneumatic control valve is reversed, the door cover cylinder acts, the door cover starts to be opened, linkage action is completed, and unlocking and opening are performed.
Preferably, in the closed and unlocked state:
no. 4 cavity of the second manual valve is air, No. 2 cavity is air-free, No. 4 cavity is directly communicated with No. 6 cavity of the second pneumatic control valve, and the second pneumatic control valve is reversed because the No. 7 cavity is air-lost, and the revolving door locking cylinder starts to act; after the cylinder is in place, unlocking is completed, the second travel switch and the third travel switch are triggered, the second travel switch and the third travel switch are simultaneously opened, the No. 1 cavity and the No. 2 cavity are in a passage state, the No. 2 cavity of the second travel switch and the No. 6 cavity of the first pneumatic control valve are in a passage state, the No. 2 cavity of the third travel switch and the No. 7 cavity of the first pneumatic control valve are in an indirect passage state through the shuttle valve, and the No. 7 cavity is filled with air; under this state, operate first manual valve, change the state of uncapping, No. 2 chambeies lose gas, and No. 4 chambeies have gas, and No. 6 chambeies of first gas accuse valve have gas, and No. 7 chambeies lose gas, the action of first gas accuse valve, the cylinder action of uncapping, the door closure is opened.
Preferably, in the open-lid and unlocked state:
the second travel switch and the third travel switch are both in an on state, the first travel switch is in an off state, the air pressure of the No. 4 cavity of the second manual valve is directly communicated with the No. 6 cavity of the second pneumatic control valve, and the air pressure of the No. 4 cavity of the first manual valve is directly communicated with the No. 6 cavity of the first pneumatic control valve; in the state, the second manual valve is operated to be switched to a locking state, the No. 6 cavity of the second pneumatic control valve is decompressed, the No. 1 cavity of the first travel switch is filled with air, and because the first travel switch is in a closed state, the No. 1 cavity of the first travel switch and the No. 7 cavity of the second pneumatic control valve do not form a passage, and the No. 6 cavity and the No. 7 cavity are simultaneously filled with no air pressure, the second pneumatic control valve is not reversed according to a memory function, and the original state is still kept; meanwhile, a passage is formed by the air pressure of the No. 3 cavity of the shuttle valve and the air pressure of the No. 7 cavity of the first pneumatic control valve, the No. 6 cavity and the No. 7 cavity of the first pneumatic control valve are simultaneously provided with air, the first pneumatic control valve does not change direction according to the memory function, and the cover door air cylinder keeps in place; continuing to operate the second pneumatic valve, switching to a cover closing state, and switching to the direction of the first pneumatic valve when the No. 6 cavity of the first pneumatic valve is out of gas and the No. 7 cavity of the first pneumatic valve is in gas state, so that the first pneumatic valve is reversed, and the cover door cylinder is closed; after the cylinder is in place, the first travel switch is triggered, the first travel switch is in an open state, a cavity 1 of the first travel switch and a cavity 7 of the second pneumatic control valve form a pneumatic passage, the second pneumatic control valve is reversed, the revolving door cylinder acts, after the cylinder is in place, linkage action is completed, and the cover is closed and locked.
The invention has the advantages that: compared with the prior art, the pneumatic control system has reasonable structure arrangement, takes pure pneumatic control as a design scheme, and utilizes the pneumatic energy-saving, quick, safe and overload capabilities to ensure that the operation is simpler and more convenient, the uniqueness of the operation sequence is realized, and the operation is convenient, safe and reliable;
closing the cover and locking the position, wherein the manual cover opening function fails, and in order to ensure that two paths of air signals of the first air control valve are simultaneously cut off, 2 paths of mechanical travel switch air valves are adopted; the first pneumatic control valve and the second pneumatic control valve with the memory function are used for preventing automatic resetting;
when the cylinder reaches an unlocking position, 2 mechanical travel switch air valves are triggered at the same time, but only 1 of the mechanical travel switch air valves can be normally used, so that the uniqueness of the sequence is ensured; the travel switch and the locking air circuit ensure the only air signal circuit for closing the cover through the shuttle valve;
the first pneumatic control valve and the second pneumatic control valve switch the action of the cylinder by a pneumatic signal, and the cylinder triggers the first travel switch at the cover closing position, so that the second manual valve can send a pneumatic signal to switch, lock and unlock the action of the second pneumatic control valve.
The invention is further described with reference to the drawings and the specific embodiments in the following description.
Drawings
FIG. 1 is a schematic diagram of the prior art;
FIG. 2 is a schematic diagram of an embodiment of the present invention;
FIG. 3 is a schematic view of a partial structure of a pneumatic control box according to an embodiment of the present invention;
FIG. 4 is a schematic view of a second partial structure of the pneumatic control box according to the embodiment of the present invention;
Detailed Description
In the description of the present embodiment, it should be noted that, as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "front", "rear", etc. appear, their indicated orientations or positional relationships are based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" as appearing herein are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Referring to fig. 2 to 4, the slag tap door interlocking pneumatic control system disclosed by the invention comprises an air source, an air cylinder, a first pneumatic control valve, a second pneumatic control valve, a first manual valve, a second manual valve, a first travel switch, a second travel switch, a third travel switch, a three-way joint and a shuttle valve, and the specific operation comprises the following steps:
(1) checking whether the installation of each mechanical air valve is correct; checking whether each mechanical air valve works normally; before operation, a cylinder interface on the pneumatic control box is blocked by a pipe plug to prevent the cylinder from working; a pneumatic control box is correctly connected to a mechanical travel switch air pipeline;
(2) the hand-operated valve handle is turned to a closing cover and locking position for ventilation;
(3) checking the first travel switch, pressing the roller by hand when the port P is inflated, and exhausting air from the port A; a second travel switch, wherein the port P is aerated, the roller is pressed by hand, and the port A is aerated; the third travel switch, P port is airless;
(4) the hand-operated valve is turned to the uncovering position, the third travel switch is checked, the port P is inflated, the hand presses the roller, and the port A is inflated; the second travel switch is connected with the air inlet P;
(5) when the hand-operated valve is turned to the unlocking position, the first travel switch is turned, and the P port is air-free;
(6) and the cylinder pipeline is correctly connected.
Preferably, the initial state: the hand-operated valve handle is turned to the closing cover and locking position,
(1) when the handle is rotated to the cover closing position, the door locking cylinder can be freely opened and closed;
(2) the handle rotates to an unlocking position, and the door opening cylinder can be freely opened and closed;
(3) when the handle rotates to a locking position, the opening and closing functions of the door opening cylinder are invalid;
(4) when the handle rotates to the uncovering position, the opening and closing functions of the door locking cylinder fail.
Preferably, in the closed and locked state:
the No. 2 cavities of the first manual valve 1 and the second manual valve 2 are in a gas state, the No. 2 cavity of the first manual valve 1 and the No. 1 cavity of the third travel switch S3 are in gas state, the No. 4 cavity of the first manual valve 1 is communicated with the No. 1 cavity of the second travel switch S2, the second travel switch S2 and the third travel switch S3 are in a closed state, the No. 1 cavity and the No. 2 cavity of the second travel switch S2 and the third travel switch S3 are in a non-communicated state, the first travel switch S1 is in an open state, and the No. 1 cavity and the No. 2 cavity of the first travel switch S1 are in a communicated state; the No. 2 cavity of the second manual valve 2 is directly communicated with the No. 7 cavity of the first pneumatic control valve and/or the No. 3 cavity of the shuttle valve through a three-way joint (the working principle of the shuttle valve is that if any one of the No. 1 cavity and the No. 3 cavity is air, the No. 1 cavity and the No. 2 cavity can be directly communicated with the No. 2 cavity), the No. 7 cavity of the first pneumatic control valve is indirectly controlled, the first pneumatic control valve has a memory function (the memory function is that the No. 7 cavity is air, the No. 1 cavity is communicated with the No. 2 cavity, if the No. 7 cavity is air-cut off, the No. 1 cavity is still communicated with the No. 2 cavity), and the first pneumatic control valve; in this state, the first manual valve 1 is operated, the state is switched to the uncovering state, the cavity No. 2 is deflated, the cavity No. 4 is inflated, and the cavity No. 1 of the second travel switch S2 is inflated, so that the cavity No. 6 of the first pneumatic control valve is not inflated, the first pneumatic control valve is not operated, and the door cover is not operated because the second travel switch S2 and the third travel switch S3 are still closed; the second manual valve 2 is continuously operated, the unlocking state is switched, and the No. 7 cavity of the first pneumatic control valve is deflated, so that the original state is still kept due to the memory function; the No. 7 cavity of the second pneumatic control valve is exhausted, the No. 6 cavity of the second pneumatic control valve is ventilated, the second pneumatic control valve is reversed, and the revolving door locking cylinder starts to act; after the cylinder is in place, unlocking is completed, the second travel switch S2 and the third travel switch S3 are triggered, the second travel switch S2 and the third travel switch S3 are simultaneously opened, the cavity No. 1 of the second travel switch S2 is communicated with the cavity No. 6 of the first pneumatic control valve, the first pneumatic control valve is reversed, the door cover cylinder acts, the door cover starts to be opened, linkage action is completed, and unlocking and opening are performed.
Preferably, in the closed and unlocked state:
no. 4 cavity of the second manual valve 2 is air, No. 2 cavity is air-free, No. 4 cavity is directly communicated with No. 6 cavity of the second pneumatic control valve, and the second pneumatic control valve is reversed because the No. 7 cavity is air-lost, and the revolving door locking cylinder starts to act; after the cylinder is in place, unlocking is completed, a second travel switch S2 and a third travel switch S3 are triggered, the second travel switch S2 and the third travel switch S3 are simultaneously opened, the No. 1 cavity and the No. 2 cavity are in a passage state, the No. 2 cavity of the second travel switch S2 is in a passage state with the No. 6 cavity of the first pneumatic control valve, the No. 2 cavity of the third travel switch S3 is in an indirect passage state with the No. 7 cavity of the first pneumatic control valve through a shuttle valve, and the No. 7 cavity is filled with air; under this state, operate first manual valve 1, trade the state of uncapping, No. 2 chambeies lose gas, and No. 4 chambeies have gas, and No. 6 chambeies of first gas accuse valve have gas, and No. 7 chambeies lose gas, the action of first gas accuse valve, the cylinder action of uncapping, the door closure is opened.
Preferably, in the open-lid and unlocked state:
the second stroke switch S2 and the third stroke switch S3 are both in an on state, the first stroke switch S1 is in an off state, the No. 4 chamber air pressure of the second manual valve 2 is communicated directly to the No. 6 chamber of the second pneumatic valve, and the No. 4 chamber air pressure of the first manual valve 1 is communicated directly to the No. 6 chamber of the first pneumatic valve; in this state, the second manual valve 2 is operated to be switched to a locking state, the No. 6 cavity of the second pneumatic control valve is decompressed, the No. 1 cavity of the first travel switch S1 is air, and because the first travel switch S1 is in a closed state, the No. 1 cavity of the first travel switch S1 and the No. 7 cavity of the second pneumatic control valve do not form a passage, and the No. 6 cavity and the No. 7 cavity are simultaneously free of air pressure, the second pneumatic control valve is not reversed and still keeps the original state according to a memory function; meanwhile, a passage is formed by the air pressure of the No. 3 cavity of the shuttle valve and the air pressure of the No. 7 cavity of the first pneumatic control valve, the No. 6 cavity and the No. 7 cavity of the first pneumatic control valve are simultaneously provided with air, the first pneumatic control valve does not change direction according to the memory function, and the cover door air cylinder keeps in place; continuing to operate the second pneumatic valve 2, switching to a cover closing state, and leading the No. 6 cavity of the first pneumatic valve to lose air and the No. 7 cavity to have air, so that the first pneumatic valve is reversed, and a cover door cylinder is closed; and after the cylinder is in place, triggering a first travel switch S1, enabling a first travel switch S1 to be in an open state, enabling a cavity 1 of the first travel switch S1 and a cavity 7 of the second pneumatic control valve to form a pneumatic passage, reversing the second pneumatic control valve, enabling the revolving door cylinder to act, completing linkage action after the revolving door cylinder is in place, and closing the cover and locking.
In addition, the components of the slag door interlocking pneumatic control system can be assembled and used together with the existing pneumatic control box, and the pneumatic control box is shown in fig. 3 and 4.
The invention has the advantages that: compared with the prior art, the pneumatic control system has reasonable structure arrangement, takes pure pneumatic control as a design scheme, and utilizes the pneumatic energy-saving, quick, safe and overload capabilities to ensure that the operation is simpler and more convenient, the uniqueness of the operation sequence is realized, and the operation is convenient, safe and reliable;
closing the cover and locking the position, wherein the manual cover opening function fails, and in order to ensure that two paths of air signals of the first air control valve are simultaneously cut off, 2 paths of mechanical travel switch air valves are adopted; the first pneumatic control valve and the second pneumatic control valve with the memory function are used for preventing automatic resetting;
when the cylinder reaches an unlocking position, 2 mechanical travel switch air valves are triggered at the same time, but only 1 of the mechanical travel switch air valves can be normally used, so that the uniqueness of the sequence is ensured; the travel switch and the locking air circuit ensure the only air signal circuit for closing the cover through the shuttle valve;
the first pneumatic control valve and the second pneumatic control valve switch the action of the cylinder by a pneumatic signal, and the cylinder triggers the first travel switch at the cover closing position, so that the second manual valve can send a pneumatic signal to switch, lock and unlock the action of the second pneumatic control valve.
The above embodiments are described in detail for the purpose of further illustrating the present invention and should not be construed as limiting the scope of the present invention, and the skilled engineer can make insubstantial modifications and variations of the present invention based on the above disclosure.

Claims (5)

1. The utility model provides a slag tap door interlocking pneumatic control system, includes air supply and cylinder, its characterized in that: still include first gas accuse valve, second gas accuse valve, first manual valve, the manual valve of second, first travel switch, second travel switch and third travel switch, three way connection and shuttle valve, the concrete operation includes the following steps:
(1) checking whether the installation of each mechanical air valve is correct; checking whether each mechanical air valve works normally; before operation, a cylinder interface on the pneumatic control box is blocked by a pipe plug to prevent the cylinder from working; a pneumatic control box is correctly connected to a mechanical travel switch air pipeline;
(2) the hand-operated valve handle is turned to a closing cover and locking position for ventilation;
(3) checking the first travel switch, pressing the roller by hand when the port P is inflated, and exhausting air from the port A; a second travel switch, wherein the port P is aerated, the roller is pressed by hand, and the port A is aerated; the third travel switch, P port is airless;
(4) the hand-operated valve is turned to the uncovering position, the third travel switch is checked, the port P is inflated, the hand presses the roller, and the port A is inflated; the second travel switch is connected with the air inlet P;
(5) when the hand-operated valve is turned to the unlocking position, the first travel switch is turned, and the P port is air-free;
(6) and the cylinder pipeline is correctly connected.
2. A slag door interlock pneumatic control system according to claim 1, wherein: initial state: the hand-operated valve handle is turned to the closing cover and locking position,
(1) when the handle is rotated to the cover closing position, the door locking cylinder can be freely opened and closed;
(2) the handle rotates to an unlocking position, and the door opening cylinder can be freely opened and closed;
(3) when the handle rotates to a locking position, the opening and closing functions of the door opening cylinder are invalid;
(4) when the handle rotates to the uncovering position, the opening and closing functions of the door locking cylinder fail.
3. A slag door interlock pneumatic control system according to claim 1 or 2, wherein: in the closed and locked state: the cavity 2 of the first manual valve and the cavity 2 of the second manual valve are both in an air state, the cavity 2 of the first manual valve and the cavity 1 of the third travel switch are both in an air state, the cavity 4 of the first manual valve is communicated with the cavity 1 of the second travel switch, the second travel switch and the third travel switch are both in a closed state, the cavity 1 and the cavity 2 of the second travel switch and the cavity 2 of the third travel switch are in an open state, the first travel switch is in an open state, and the cavity 1 and the cavity 2 of the first travel switch are in an open state; the No. 2 cavity of the second manual valve is directly communicated with the No. 7 cavity of the first pneumatic control valve and/or the No. 3 cavity of the shuttle valve through a three-way joint to indirectly control the No. 7 cavity of the first pneumatic control valve, and the first pneumatic control valve enables the cover closing and locking air inlet of the air cylinder to always have air pressure; in the state, the first manual valve is operated to switch to the uncovering state, the No. 2 cavity is deflated, the No. 4 cavity is inflated, the No. 1 cavity of the second travel switch is inflated, and the second travel switch and the third travel switch are still closed, the No. 6 cavity of the first pneumatic control valve is not inflated, the first pneumatic control valve does not act, and therefore the door cover does not act; continuing to operate the second manual valve, switching to an unlocking state, and keeping the original state after the No. 7 cavity of the first pneumatic control valve loses air; the No. 7 cavity of the second pneumatic control valve is exhausted, the No. 6 cavity of the second pneumatic control valve is ventilated, the second pneumatic control valve is reversed, and the revolving door locking cylinder starts to act; after the cylinder is in place, unlocking is completed, the second travel switch and the third travel switch are triggered, the second travel switch and the third travel switch are simultaneously opened, the cavity 1 of the second travel switch is directly communicated with the cavity 6 of the first pneumatic control valve, the first pneumatic control valve is reversed, the door cover cylinder acts, the door cover starts to be opened, linkage action is completed, and unlocking and opening are performed.
4. A slag door interlock pneumatic control system according to claim 3, wherein: in the closed and unlocked state: no. 4 cavity of the second manual valve is air, No. 2 cavity is air-free, No. 4 cavity is directly communicated with No. 6 cavity of the second pneumatic control valve, and the second pneumatic control valve is reversed because the No. 7 cavity is air-lost, and the revolving door locking cylinder starts to act; after the cylinder is in place, unlocking is completed, the second travel switch and the third travel switch are triggered, the second travel switch and the third travel switch are simultaneously opened, the No. 1 cavity and the No. 2 cavity are in a passage state, the No. 2 cavity of the second travel switch and the No. 6 cavity of the first pneumatic control valve are in a passage state, the No. 2 cavity of the third travel switch and the No. 7 cavity of the first pneumatic control valve are in an indirect passage state through the shuttle valve, and the No. 7 cavity is filled with air; under this state, operate first manual valve, change the state of uncapping, No. 2 chambeies lose gas, and No. 4 chambeies have gas, and No. 6 chambeies of first gas accuse valve have gas, and No. 7 chambeies lose gas, the action of first gas accuse valve, the cylinder action of uncapping, the door closure is opened.
5. The slag door interlock pneumatic control system according to claim 4, wherein: in the uncapping and unlocking state: the second travel switch and the third travel switch are both in an on state, the first travel switch is in an off state, the air pressure of the No. 4 cavity of the second manual valve is directly communicated with the No. 6 cavity of the second pneumatic control valve, and the air pressure of the No. 4 cavity of the first manual valve is directly communicated with the No. 6 cavity of the first pneumatic control valve; in the state, the second manual valve is operated to be switched to a locking state, the No. 6 cavity of the second pneumatic control valve is decompressed, the No. 1 cavity of the first travel switch is filled with air, and because the first travel switch is in a closed state, the No. 1 cavity of the first travel switch and the No. 7 cavity of the second pneumatic control valve do not form a passage, and the No. 6 cavity and the No. 7 cavity are simultaneously filled with no air pressure, the second pneumatic control valve is not reversed according to a memory function, and the original state is still kept; meanwhile, a passage is formed by the air pressure of the No. 3 cavity of the shuttle valve and the air pressure of the No. 7 cavity of the first pneumatic control valve, the No. 6 cavity and the No. 7 cavity of the first pneumatic control valve are simultaneously provided with air, the first pneumatic control valve does not change direction according to the memory function, and the cover door air cylinder keeps in place; continuing to operate the second pneumatic valve, switching to a cover closing state, and switching to the direction of the first pneumatic valve when the No. 6 cavity of the first pneumatic valve is out of gas and the No. 7 cavity of the first pneumatic valve is in gas state, so that the first pneumatic valve is reversed, and the cover door cylinder is closed; after the cylinder is in place, the first travel switch is triggered, the first travel switch is in an open state, a cavity 1 of the first travel switch and a cavity 7 of the second pneumatic control valve form a pneumatic passage, the second pneumatic control valve is reversed, the revolving door cylinder acts, after the cylinder is in place, linkage action is completed, and the cover is closed and locked.
CN201911216840.0A 2019-12-03 2019-12-03 Interlocking pneumatic control system for slag outlet door Active CN111022391B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911216840.0A CN111022391B (en) 2019-12-03 2019-12-03 Interlocking pneumatic control system for slag outlet door

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911216840.0A CN111022391B (en) 2019-12-03 2019-12-03 Interlocking pneumatic control system for slag outlet door

Publications (2)

Publication Number Publication Date
CN111022391A true CN111022391A (en) 2020-04-17
CN111022391B CN111022391B (en) 2021-09-10

Family

ID=70203915

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201911216840.0A Active CN111022391B (en) 2019-12-03 2019-12-03 Interlocking pneumatic control system for slag outlet door

Country Status (1)

Country Link
CN (1) CN111022391B (en)

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04277303A (en) * 1991-02-28 1992-10-02 Kayaba Ind Co Ltd Gas spring
GB9418662D0 (en) * 1994-09-16 1994-11-02 Xcalibre Equipment Ltd Pneumatic system and device
CN2513838Y (en) * 2001-08-10 2002-10-02 郑喜来 Device for opening or closing luggage compartment door of passenger train
CN2589444Y (en) * 2002-12-20 2003-12-03 山西焦煤集团有限责任公司 Tank curtain automatic start-shutdown apparatus
CN2697255Y (en) * 2004-05-14 2005-05-04 卞鹤山 Pneumat internal swing door pump
CN200964737Y (en) * 2006-09-30 2007-10-24 张书青 Pneumatic locking arrangement
CN102454778A (en) * 2010-10-14 2012-05-16 现代自动车株式会社 Hydraulic control system of automatic transmission for hybrid vehicle
CN102529994A (en) * 2012-01-10 2012-07-04 南车长江车辆有限公司 Bottom door opening and closing air control system for railroad hopper car
CN102795572A (en) * 2011-05-27 2012-11-28 上海微电子装备有限公司 Lifter and pneumatic control system thereof
CN103158724A (en) * 2011-12-09 2013-06-19 齐齐哈尔轨道交通装备有限责任公司 Hopper car bottom door control system
CN203835862U (en) * 2014-04-29 2014-09-17 苏州诚峰机电设备有限公司 Air cylinder piston rod locking device
CN204877177U (en) * 2015-07-24 2015-12-16 株洲合力电磁技术有限公司 Pneumatic shield door device

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04277303A (en) * 1991-02-28 1992-10-02 Kayaba Ind Co Ltd Gas spring
GB9418662D0 (en) * 1994-09-16 1994-11-02 Xcalibre Equipment Ltd Pneumatic system and device
CN2513838Y (en) * 2001-08-10 2002-10-02 郑喜来 Device for opening or closing luggage compartment door of passenger train
CN2589444Y (en) * 2002-12-20 2003-12-03 山西焦煤集团有限责任公司 Tank curtain automatic start-shutdown apparatus
CN2697255Y (en) * 2004-05-14 2005-05-04 卞鹤山 Pneumat internal swing door pump
CN200964737Y (en) * 2006-09-30 2007-10-24 张书青 Pneumatic locking arrangement
CN102454778A (en) * 2010-10-14 2012-05-16 现代自动车株式会社 Hydraulic control system of automatic transmission for hybrid vehicle
CN102795572A (en) * 2011-05-27 2012-11-28 上海微电子装备有限公司 Lifter and pneumatic control system thereof
CN103158724A (en) * 2011-12-09 2013-06-19 齐齐哈尔轨道交通装备有限责任公司 Hopper car bottom door control system
CN102529994A (en) * 2012-01-10 2012-07-04 南车长江车辆有限公司 Bottom door opening and closing air control system for railroad hopper car
CN203835862U (en) * 2014-04-29 2014-09-17 苏州诚峰机电设备有限公司 Air cylinder piston rod locking device
CN204877177U (en) * 2015-07-24 2015-12-16 株洲合力电磁技术有限公司 Pneumatic shield door device

Also Published As

Publication number Publication date
CN111022391B (en) 2021-09-10

Similar Documents

Publication Publication Date Title
CN111022391B (en) Interlocking pneumatic control system for slag outlet door
KR101863660B1 (en) system controlling remotely motion for valve shutter
RU182432U1 (en) COMBINED DRIVE CONTROL UNIT
US3876385A (en) Fail-safe system for operating an autoclave door
CN107795517A (en) A kind of air pump with multi-channel structure
CN102805906B (en) Marine remote-control carbon dioxide release box
CN105711578A (en) Parking brake control unit with remote relieving and state monitoring functions
CN209862200U (en) Aerated water machine
KR102210353B1 (en) Indoor fire hydrant for building
CN203445056U (en) Misoperation prevention type sulfur hexafluoride gas density relay fitting joint
CN205422255U (en) Locomotive linkage pneumatic door lock
US3523675A (en) Valve operating apparatus with locking means
CN218032625U (en) Monitoring system for filling gas tanks
CN205669601U (en) Vehicle safety control valve and vehicle safety control system
CN217056376U (en) Ventilation butterfly valve with air bag
CN213809162U (en) Anti-misoperation butterfly valve
CN220036715U (en) Pneumatic device for controlling mining push-pull air door
CN103366995A (en) Forming method for assembling connector of gas density relay capable of preventing misoperation
CN110375108A (en) Integral type valve positioner
CN206846069U (en) A kind of European explosion-proof gas-operated lock of emptying valve
CN201110373Y (en) Sealing device for locking and unlocking
JPH05111628A (en) Locking device for opening/closing cover in rotating machine such as mixer
CN211066154U (en) Automatic steaming cabinet door
CN216690700U (en) Luggage compartment door lock one-key opening and closing system and passenger car
JP2809489B2 (en) Cylinder valve opening and closing device

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant