Direct push type fire grate installation method

Abstract

The invention relates to a method for installing a direct-push type fire grate. The method comprises the following steps: aligning an installation platform; the supporting frame is installed, the installation positions of all supporting columns of the supporting frame are determined on the installation platform, positioning tools are arranged between the installation platform and all the supporting columns of the supporting frame to position the supporting columns, all the supporting columns of the supporting frame are welded to the installation platform, and an inclined installation face is formed on the upper surface of the supporting frame; mounting a movable beam and a transmission mechanism; a driving beam is installed, a bracket is arranged on the rear side of the supporting frame according to the installation position of the driving beam, the driving beam is arranged on the bracket, and the driving beam is connected with a transmission mechanism and all the movable beams; mounting a fixed beam; mounting an isolation plate and a side beam guide plate; fire grate segments are installed; and mounting the driving device. According to the mounting method, displacement and deformation of the supporting frame can be avoided, the assembling precision is not affected, the driving beam can be conveniently measured, positioned and mounted, long-time occupation of factory driving is avoided, and potential safety hazards are reduced.

Description

Technical Field

[0001] The invention relates to the technical field of grates, and in particular to a method for installing a direct-push type grate. Background Art

[0002] Municipal solid waste power generation has become the mainstream technology for treating municipal solid waste in my country. Among them, the reciprocating grate furnace is a mature and most widely used incineration technology, which has great advantages in equipment operation stability, operation economy and environmentally friendly emission standards.

[0003] The installation dimension accuracy of the grate is indeed a key factor affecting the normal operation of the equipment. It also affects the time required for the installation of the equipment. At present, the installation of the drive beam in the grate components depends on the factory crane for a long time to lift, repeatedly measure and locate, and multiple installation workers to cooperate in the installation, which is time-consuming and labor-intensive and poses safety hazards. Summary of the invention

[0004] The object of the present invention is to provide a method for installing a direct-push grate, so as to avoid long-time lifting of parts during the installation process, reduce the time occupied by factory driving, and avoid potential safety hazards.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A method for installing a direct-push grate comprises the following steps:

[0007] Align the installation platform and adjust the flatness of the installation platform to the preset value;

[0008] Support frame installation: determine the installation position of each pillar of the support frame on the installation platform, set a positioning tool between the installation platform and each pillar of the support frame to position the pillar, and weld each pillar of the support frame to the installation platform so that the upper surface of the support frame forms an inclined installation surface;

[0009] The movable beam and the transmission mechanism are installed by installing a plurality of movable beams obliquely and spaced apart from each other on the installation surface, and installing the transmission mechanism on the rear side of the support frame;

[0010] The driving beam is installed by arranging a bracket on the rear side of the support frame according to the installation position of the driving beam, placing the driving beam on the bracket, and connecting the driving beam to the transmission mechanism and each movable beam respectively;

[0011] Fixed beam installation, multiple fixed beams and movable beams are alternately arranged on the installation surface, and the spacing between the fixed beams and the movable beams is adjusted by using a spacing fixing tool, so that the spacing between the fixed beams and the movable beams is consistent and in the same plane;

[0012] Isolation plates and side beam guide plates are installed. An isolation plate for isolating the fixed beam from the movable beam is installed between the fixed beam and the movable beam, and side beam guide plates for guiding and limiting the movable beams on both sides are installed on both sides of the upper surface of the support frame;

[0013] Installation of grate plates: installing grate plates on fixed beams and movable beams;

[0014] The drive device is installed to connect the drive device to the transmission mechanism.

[0015] In one embodiment of the present application, the installation platform alignment comprises the steps of:

[0016] Take the center of each pillar of the supporting frame as the reference point, use the theodolite to determine the elevation of the upper surface of the installation platform, and use gaskets of different thicknesses to place them under the installation platform to make the flatness of the installation platform reach the preset value;

[0017] Draw a reference line based on the starting point of the support beam of the support frame and the center point of each support column of the support frame.

[0018] In one embodiment of the present application, the support frame installation comprises the steps of:

[0019] Place the support frame on the installation platform according to the reference line;

[0020] Welding positioning fixtures: welding positioning fixtures between the support columns of the support frame and the mounting platform to position the support frame;

[0021] Weld the support columns of the support frame to the mounting platform.

[0022] In one embodiment of the present application, the installation of the movable beam and the transmission mechanism includes the following steps:

[0023] Installing sliding plates at intervals on each supporting beam of the supporting frame;

[0024] Install a wedge-shaped support block at the bottom of the movable beam, place the movable beam on each support beam of the support frame, and make the wedge-shaped inclined surface of the wedge-shaped support block slide in cooperation with the slide plate;

[0025] The transmission mechanism is installed on the rear side of the supporting frame.

[0026] In one embodiment of the present application, the driving beam installation comprises the steps of:

[0027] Determine the installation position of the driving beam according to the position of the transmission mechanism;

[0028] Welding a bracket for lifting the driving beam on the supporting frame according to the determined position of the driving beam;

[0029] The driving beam is placed on the bracket, and one side of the driving beam is connected to the transmission mechanism, and the other side is connected to each movable beam.

[0030] In one embodiment of the present application, the fixing beam installation comprises the steps of:

[0031] A spacing fixing tool is manufactured according to the center distance of the fixed beam and the movable beam, wherein the spacing fixing tool comprises a main body plate and a plurality of mounting holes arranged on the main body plate, and the hole distance between two adjacent mounting holes is the center distance of the adjacent fixed beam and the movable beam;

[0032] The fixed beams and the movable beams are alternately placed on the installation surface, and the main body plate is connected to the multiple fixed beams and the multiple movable beams respectively through the multiple installation holes, so that the spacing between each fixed beam and the adjacent movable beam is the same and the fixed beams and the movable beams are in the same plane.

[0033] In one embodiment of the present application, the steps are also included:

[0034] Dynamic test: start the driving device to move the movable beam to different positions, check whether the gap between the wedge-shaped slope and the slide plate meets the requirements, whether the travel of the movable beam meets the requirements, and whether there is interference, abnormal noise, or jitter when the grate moves.

[0035] In one embodiment of the present application, the steps are also included:

[0036] Check and disassemble the straight-push grate, check the unwelded parts and repair them in time, and apply lubricating grease between the wedge-shaped slope and the slide plate.

[0037] It can be seen from the above technical scheme that the present invention discloses a method for installing a direct-push grate, which includes the following steps: aligning the installation platform, adjusting the flatness of the installation platform to a preset value; installing the support frame, determining the installation position of each pillar of the support frame on the installation platform, and setting a positioning tool between the installation platform and each pillar of the support frame to position the pillar, and welding each pillar of the support frame to the installation platform so that the upper surface of the support frame forms an inclined installation surface; installing movable beams and transmission mechanisms, installing multiple movable beams on the installation surface at an angle and at intervals from each other, and installing the transmission mechanism on the rear side of the support frame; installing the drive beam, and installing the drive beam on the rear side of the support frame according to the installation of the drive beam. A bracket is arranged at a position, a driving beam is placed on the bracket, and the driving beam is respectively connected to the transmission mechanism and each movable beam; a fixed beam is installed, a plurality of fixed beams and movable beams are alternately arranged on the installation surface, and the spacing between the fixed beams and the movable beams is adjusted by using a spacing fixing tool, so that the spacing between the fixed beams and the movable beams is consistent and is in the same plane; an isolation plate and a side beam guide plate are installed, an isolation plate for isolating the fixed beam and the movable beam is installed between the fixed beam and the movable beam, and side beam guide plates for guiding and limiting the movable beams on both sides are respectively installed on both sides of the upper surface of the support frame; a grate plate is installed, and a grate plate is installed on the fixed beam and the movable beam; a driving device is installed, and the driving device is connected to the transmission mechanism.

[0038] In the above-mentioned direct-push grate installation method, when installing the support frame, the support frame is positioned using a positioning tool to avoid displacement and deformation of the support frame when welding the support frame to the installation platform, thereby affecting the assembly accuracy. At the same time, before installing the drive beam, a bracket is first installed on the support frame, and the drive beam is supported by the bracket to facilitate measurement, positioning and installation of the drive beam, thereby avoiding long-term occupation of the factory crane and reducing safety hazards caused by lifting. DETAILED DESCRIPTION

[0039] The core of the present invention is to provide a direct-push grate installation method. The structural design of the direct-push grate installation method enables it to avoid long-term lifting of parts during the installation process, reduce the time occupied by factory driving, and avoid safety hazards.

[0040] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] The embodiment of the present invention discloses a method for installing a direct-push grate, which comprises the following steps:

[0042] Align the installation platform and adjust the flatness of the installation platform to the preset value;

[0043] Support frame installation: determine the installation position of each pillar of the support frame on the installation platform, set a positioning tool between the installation platform and each pillar of the support frame to position the pillar, and weld each pillar of the support frame to the installation platform so that the upper surface of the support frame forms an inclined installation surface;

[0044] The movable beam and the transmission mechanism are installed by installing a plurality of movable beams obliquely and spaced apart from each other on the installation surface, and installing the transmission mechanism on the rear side of the support frame;

[0045] The driving beam is installed by arranging a bracket on the rear side of the support frame according to the installation position of the driving beam, placing the driving beam on the bracket, and connecting the driving beam to the transmission mechanism and each movable beam respectively;

[0046] Fixed beam installation, multiple fixed beams and movable beams are alternately arranged on the installation surface, and the spacing between the fixed beams and the movable beams is adjusted by using a spacing fixing tool, so that the spacing between the fixed beams and the movable beams is consistent and in the same plane;

[0047] Isolation plates and side beam guide plates are installed. An isolation plate for isolating the fixed beam from the movable beam is installed between the fixed beam and the movable beam, and side beam guide plates for guiding and limiting the movable beams on both sides are installed on both sides of the upper surface of the support frame;

[0048] Installation of grate plates: installing grate plates on fixed beams and movable beams;

[0049] The drive device is installed to connect the drive device to the transmission mechanism.

[0050] Compared with the prior art, the direct-push grate installation method provided in the embodiment of the present invention uses a positioning tool to position the support frame when installing the support frame, so as to avoid displacement and deformation of the support frame when welding the support frame to the installation platform, thereby affecting the assembly accuracy. At the same time, before installing the driving beam, a bracket is first installed on the support frame, and the driving beam is supported by the bracket, which is convenient for measuring, positioning and installing the driving beam, avoiding long-term occupation of the factory crane and reducing the safety hazards caused by lifting.

[0051] Specifically, in one embodiment of the present application, the installation platform alignment includes the steps of:

[0052] Taking the center of each pillar of the supporting frame as the reference point, the elevation of the upper surface of the installation platform is determined using a theodolite, and shims of different thicknesses are placed under the installation platform to make the flatness of the installation platform reach the preset value.

[0053] Draw a reference line according to the starting point of the support beam of the support frame and the center point of each pillar of the support frame. To facilitate the drawing of the reference line, punch and locate the starting point of the support beam and the center point of each pillar of the support frame.

[0054] In the present application, the preset flatness value of the above-mentioned mounting platform is 1 mm.

[0055] In one embodiment, the support frame installation comprises the steps of:

[0056] Place the support frame on the mounting platform according to the reference line.

[0057] Welding positioning fixtures are welded between the support columns of the support frame and the installation platform to position the support frame. In this case, the positioning fixture is a positioning connector, and the two ends of the positioning connector are respectively welded to the support columns of the support frame and the installation platform.

[0058] Weld the support columns of the support frame to the mounting platform.

[0059] Preferably, in one embodiment of the present application, the installation of the movable beam and the transmission mechanism comprises the following steps:

[0060] Slide plates are installed at intervals on each supporting beam of the supporting frame, and the slide plates are usually copper slide plates.

[0061] A wedge-shaped support block is installed at the bottom of the movable beam, and the movable beam is placed on each support beam of the support frame, and the wedge-shaped inclined surface of the wedge-shaped support block is slidably matched with the slide plate, and the wedge-shaped inclined surface of the wedge-shaped support block is composed of a stainless steel plate.

[0062] A transmission mechanism is installed on the rear side of the support frame. The transmission mechanism includes a transmission shaft and a plurality of cams arranged on the transmission shaft at intervals along the axial direction. Each cam is used to connect with the driving beam. During installation, the transmission shaft is rotatably arranged on the rear side of the support frame.

[0063] Specifically, in one embodiment of the present application, the drive beam installation includes the steps of:

[0064] Determine the installation position of the drive beam according to the position of the transmission mechanism.

[0065] A bracket for lifting the driving beam is welded on the supporting frame according to the determined position of the driving beam.

[0066] The driving beam is placed on the bracket, and one side of the driving beam is connected to the transmission mechanism, and the other side is connected to each movable beam.

[0067] Specifically, in one embodiment, the above-mentioned fixed beam installation includes the steps of:

[0068] A spacing fixing tool is made according to the center distance of the fixed beam and the movable beam. The spacing fixing tool includes a main plate and a plurality of mounting holes arranged on the main plate. The hole spacing between two adjacent mounting holes is the center distance of adjacent fixed beams and movable beams. The center distance between the fixed beam and the movable beam is the sum of half the width of the fixed beam, half the width of the movable beam and the spacing between the fixed beam and the movable beam.

[0069] Fixed beams and movable beams are placed alternately on the installation surface, and the main plate is connected to multiple fixed beams and multiple movable beams respectively through multiple installation holes, so that the spacing between each fixed beam and the adjacent movable beam is the same and the fixed beam and the movable beam are in the same plane. The above-mentioned spacing fixing tooling can solve the problems of the gap between the fixed beam and the movable beam and the level of the fixed beam and the movable beam at one time.

[0070] Furthermore, after the drive device installation step, in one embodiment of the present application, the direct push grate installation method further includes the steps of:

[0071] Dynamic test: start the driving device to move the movable beam to different positions, check whether the gap between the wedge-shaped slope and the slide plate meets the requirements, whether the travel of the movable beam meets the requirements, and whether there is interference, abnormal noise, or jitter when the grate moves.

[0072] Specifically, during the inspection process, it is necessary to ensure that the gap between the wedge-shaped inclined surface and the slide is ≤0.3mm, the movable beam stroke is 155mm, and the external dimensions, the overall appearance quality of the grate, and the gap between the grate plates are checked simultaneously. Since the driving device in this case is a cylinder, the cylinder is also checked for oil leakage, etc.

[0073] In a specific embodiment, after the above dynamic test, the direct push grate installation method provided in an embodiment of the present application further includes the steps of:

[0074] Check and disassemble the straight-push grate, check the unwelded parts and repair them in time, and apply lubricating grease between the wedge-shaped slope and the slide plate.

[0075] It should be noted that the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0076] The principles and implementation methods of the present invention are described in this article using specific examples. The description of the above embodiments is only used to help understand the core idea of ​​the present invention. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present invention, the present invention can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A method for installing a direct push grate, characterized in that: Includes steps: Align the installation platform and adjust the flatness of the installation platform to the preset value; Support frame installation: determine the installation position of each pillar of the support frame on the installation platform, set a positioning tool between the installation platform and each pillar of the support frame to position the pillar, and weld each pillar of the support frame to the installation platform so that the upper surface of the support frame forms an inclined installation surface; The movable beam and the transmission mechanism are installed by installing a plurality of movable beams obliquely and spaced apart from each other on the installation surface, and installing the transmission mechanism on the rear side of the support frame; The driving beam is installed by arranging a bracket on the rear side of the support frame according to the installation position of the driving beam, placing the driving beam on the bracket, and connecting the driving beam to the transmission mechanism and each movable beam respectively; Fixed beam installation, multiple fixed beams and movable beams are alternately arranged on the installation surface, and the spacing between the fixed beams and the movable beams is adjusted by using a spacing fixing tool, so that the spacing between the fixed beams and the movable beams is consistent and in the same plane; Isolation plates and side beam guide plates are installed. An isolation plate for isolating the fixed beam from the movable beam is installed between the fixed beam and the movable beam, and side beam guide plates for guiding and limiting the movable beams on both sides are installed on both sides of the upper surface of the support frame; Installation of grate plates: installing grate plates on fixed beams and movable beams; The drive device is installed to connect the drive device to the transmission mechanism.

2. The method for installing a direct-push grate according to claim 1, characterized in that: The installation platform alignment comprises the steps of: Take the center of each pillar of the supporting frame as the reference point, use the theodolite to determine the elevation of the upper surface of the installation platform, and use gaskets of different thicknesses to place them under the installation platform to make the flatness of the installation platform reach the preset value; Draw a reference line based on the starting point of the support beam of the support frame and the center point of each support column of the support frame.

3. The method for installing a direct-push grate according to claim 2, characterized in that: The support frame installation comprises the steps of: Place the support frame on the installation platform according to the reference line; Welding positioning fixtures: welding positioning fixtures between the support columns of the support frame and the installation platform to position the support frame; Weld the support columns of the support frame to the mounting platform.

4. The method for installing a direct-push grate according to claim 1, characterized in that: The installation of the movable beam and the transmission mechanism comprises the following steps: Installing sliding plates at intervals on each supporting beam of the supporting frame; Install a wedge-shaped support block at the bottom of the movable beam, place the movable beam on each support beam of the support frame, and make the wedge-shaped inclined surface of the wedge-shaped support block slide in cooperation with the slide plate; The transmission mechanism is installed on the rear side of the supporting frame.

5. The method for installing a direct-push grate according to claim 4, characterized in that: The driving beam installation comprises the steps of: Determine the installation position of the driving beam according to the position of the transmission mechanism; Welding a bracket for lifting the driving beam on the supporting frame according to the determined position of the driving beam; The driving beam is placed on the bracket, and one side of the driving beam is connected to the transmission mechanism, and the other side is connected to each movable beam.

6. The method for installing a direct-push grate according to claim 1, characterized in that: The fixed beam installation comprises the steps of: A spacing fixing tool is manufactured according to the center distance of the fixed beam and the movable beam, wherein the spacing fixing tool comprises a main body plate and a plurality of mounting holes arranged on the main body plate, and the hole distance between two adjacent mounting holes is the center distance of the adjacent fixed beam and the movable beam; The fixed beams and the movable beams are alternately placed on the installation surface, and the main body plate is connected to the multiple fixed beams and the multiple movable beams respectively through the multiple installation holes, so that the spacing between each fixed beam and the adjacent movable beam is the same and the fixed beams and the movable beams are in the same plane.

7. The method for installing a direct-push grate according to claim 4 or 5, characterized in that: Also includes the steps: Dynamic test: start the driving device to move the movable beam to different positions, check whether the gap between the wedge-shaped slope and the slide plate meets the requirements, whether the travel of the movable beam meets the requirements, and whether there is interference, abnormal noise, or jitter when the grate moves.

8. The method for installing a direct-push grate according to claim 7, characterized in that: Also includes the steps: Check and disassemble the straight-push grate, check the unwelded parts and repair them in time, and apply lubricating grease between the wedge-shaped slope and the slide plate.