阅读说明：本技术 一种焚烧炉在线打焦系统 (Burn burning furnace and make burnt system on line ) 是由 张海涛 李维山 于 2021-07-27 设计创作，主要内容包括：本发明公开了一种焚烧炉在线打焦系统,所述焚烧炉在线打焦系统包括以下步骤：改造前期准备工作以及改造方法,所述改造方法包括：将焚化炉后墙左右位置各开两组打焦孔以及两组二次风孔,并在焚化炉左右侧墙上开设一组打焦孔以及一组二次风孔,确定打焦位置之后,由施工人员进行浇注料拆除,所述拆除面积应在可以实现增设打焦孔和二次风孔的情况下减少焚化炉的破坏面积。本发明通过设置的贴壁风采用二次风,并且二次风会沿着后拱进行送风处理,这样可以一定程度上较少结焦情况的出现,而且设置的打焦口,可以定期对焚烧炉的内部进行检测,在发现后拱内部存在焦块之后即可及时在线对其进行清除。(The invention discloses an on-line coking system of an incinerator, which comprises the following steps: preparing work in the early stage of reconstruction and a reconstruction method, wherein the reconstruction method comprises the following steps: the position respectively opens two sets of holes of beating burnt and two sets of overgrate air holes about with incinerator back wall to set up a set of hole of beating burnt and a set of overgrate air hole on incinerator left and right side wall, confirm after the position of beating burnt, carry out the castable by the constructor and demolish, demolish the area and should reduce the destruction area of incinerator under the condition that can realize addding the hole of beating burnt and overgrate air hole. According to the invention, the set wall-attached air adopts the secondary air, and the secondary air can supply air along the rear arch, so that the occurrence of coking conditions is reduced to a certain extent, and the set coking opening can be used for periodically detecting the interior of the incinerator, so that the rear arch can be timely cleaned in an on-line manner after the coke blocks exist in the rear arch.)

1. The utility model provides an on-line system of coking of incinerator which characterized in that: the on-line coking system of the incinerator comprises the following steps:

firstly, the method comprises the following steps: preparation work in the early stage of transformation:

a1: firstly, shutting down the incinerator, cooling and ventilating the incinerator to the inside until the temperature is lower than 40 ℃, and cleaning garbage on a grate of the incinerator;

a2: connecting a power supply used for construction into the incinerator, and electrically connecting lighting equipment with the power supply;

a3: determining a dismantling position of an incinerator;

a4: completing safety technology crossing for constructors;

II, secondly: the transformation method comprises the following steps:

b1: respectively opening two groups of coke-making holes and two groups of secondary air holes at the left and right positions of the rear wall of the incinerator, and opening one group of coke-making holes and one group of secondary air holes on the left and right side walls of the incinerator;

b2: after the coking position is determined, a constructor removes the castable, and the removal area is required to reduce the damage area of the incinerator under the condition that additional coking holes and secondary air holes can be formed;

b3: after the incinerator is dismantled, wear-resistant materials are filled in the outer walls of the coking hole and the secondary air hole in time, a heat-insulating layer at an interface of the wear-resistant materials is dug into the periphery by 50mm, corundum-mullite wear-resistant plastic materials are filled, and a Z-shaped staggered gap is formed at an improved lining interface;

b4: after the secondary air pipes are dismantled, arranging secondary air pipes along the plane of the rear arch, wherein outlets of the secondary air pipes are positioned on the side walls of the incinerator and are parallel to each other, and welding Y-shaped flat steel staples according to V-shaped fork openings after the secondary air pipes are arranged;

b5: the lining of the incinerator is repaired by adopting the corundum-mullite wear-resistant plastic material and the light heat-preservation plastic material;

b6: after the installation of the Y-shaped flat steel grab nail is finished, the light heat-insulation plastic material is rammed, and after the light plastic material is hardened, the corundum-mullite wear-resistant plastic material is rammed;

b7: the coke-drilling hole door is obliquely arranged on the outer side surface of the coke-drilling hole in a position parallel to the rear arch;

b8: installing a coke-making hole door, installing a heat-insulating cover shell outside the coke-making hole door after the coke-making hole door is installed, paving heat-insulating cotton on the outer wall of the coke-making hole door, and applying the heat-insulating cotton on the outer surface of the secondary air hole for heat insulation.

2. The on-line coking system for incinerators according to claim 1, wherein: in the step B4, the secondary air pipe is made of phi 159 multiplied by 5 stainless steel pipes, and the distance between the Y-shaped flat steel grabs is set to be 150 multiplied by 150 mm.

3. The on-line coking system for incinerators according to claim 1, wherein: the thickness of the corundum-mullite wear-resistant plastic added in the step B5 is set to be 180mm, and the thickness of the light heat-preservation plastic is set to be 200 mm.

4. The on-line coking system for incinerators according to claim 1, wherein: the inner diameter of the coking hole is set to beAnd corundum-mullite wear-resistant plastic is applied to the periphery of the coke-striking hole by 100 mm.

5. The on-line coking system for incinerators according to claim 1, wherein: the corundum-mullite wear-resistant plastic material is formed by covering pins and grabbing nails in the thickness in the construction process, and is rammed in an one-step forming mode in the construction process.

6. The on-line coking system for incinerators according to claim 1, wherein: the hole of coking sets up to circular, and the diameter sets up to 350mm, incinerator back wall position trompil hole door sets up to tubaeform tubular structure, tubaeform tubular structure external diameter sets up to 350mm, and the position diameter sets up to 550mm in the incinerator to high temperature resistant corrosion-resistant material is chooseed for use to the manufacturing material, the region that the coking is the most serious is chooseed for use to the hole of coking trompil position to the position of incinerator crossbeam and stand should be avoided at the in-process of the hole of coking.

7. The on-line coking system for incinerators according to claim 1, wherein: the interface position of the coking hole and the secondary air hole adopts a phi 108 multiplied by 5 stainless steel secondary air pipe, the pipeline between the secondary air pipe and the wall-attached air pipe adopts flange connection, and the carbon steel material of the pipeline is phi 159 multiplied by 4.

Technical Field

The invention relates to the technical field of maintenance of incinerators, in particular to an online coking system of an incinerator.

Background

Incinerators have many methods of classification from different perspectives. The method can be divided into the following steps according to the classification of the incineration chamber: single chamber incinerators, multi-chamber incinerators. The furnace body can be divided into a forward flow type, a reverse flow type and a secondary flow type according to the relation between the moving directions of the combustion flue gas and the garbage.

In the process of using the incinerator, the incinerator can be stopped and cleaned due to the occurrence of coking conditions of a hearth, the long-period stable operation of the incinerator is seriously influenced by the frequent cleaning process, in the prior art, the operation period is prolonged by trying to slow down the coking of the incinerator through methods of controlling the incinerator temperature and oxygen content, adjusting secondary air, controlling a material layer and the like, but the effect is not obvious, the coking of the incinerator is still gradually increased, and the movement of garbage is influenced after the incinerator is seriously coked, so that the incinerator is forced to be stopped. The coking condition of the boiler is checked, the coking condition of the boiler is generally detected by two side walls above the rear arch and at the same height, and the included angle between the rear arch and the side walls is particularly serious. The rear arch and coke blocks on the two side walls are connected into a whole after being coked seriously, so that the risk of blowing out and coke cleaning is high, the cleaning difficulty is high, and the maintenance time of the boiler is influenced; the large coke blocks fall in the cleaning process and easily break a fire grate, and therefore an online coking system of the incinerator is provided.

Disclosure of Invention

The invention aims to provide an on-line coking system of an incinerator, which aims to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: an on-line coking system of an incinerator, comprising the following steps:

firstly, the method comprises the following steps: preparation work in the early stage of transformation:

a1: firstly, shutting down the incinerator, cooling and ventilating the incinerator to the inside until the temperature is lower than 40 ℃, and cleaning garbage on a grate of the incinerator;

a2: connecting a power supply used for construction into the incinerator, and electrically connecting lighting equipment with the power supply;

a3: determining a dismantling part of the incinerator;

a4: completing safety technology crossing for constructors;

II, secondly: the transformation method comprises the following steps:

b1: respectively opening two groups of coke-making holes and two groups of secondary air holes at the left and right positions of the rear wall of the incinerator, and opening one group of coke-making holes and one group of secondary air holes on the left and right side walls of the incinerator;

b2: after the coking position is determined, a constructor removes the castable, and the removal area is required to reduce the damage area of the incinerator under the condition that additional coking holes and secondary air holes can be formed;

b3: after the incinerator is dismantled, wear-resistant materials are filled in the outer walls of the coking hole and the secondary air hole in time, a heat-insulating layer at an interface of the wear-resistant materials is dug into the periphery by 50mm, corundum-mullite wear-resistant plastic materials are filled, and a Z-shaped staggered gap is formed at an improved lining interface;

b4: after the secondary air pipes are dismantled, arranging secondary air pipes along the plane of the rear arch, wherein outlets of the secondary air pipes are positioned on the side walls of the incinerator and are parallel to each other, and welding Y-shaped flat steel staples according to V-shaped fork openings after the secondary air pipes are arranged;

b5: the lining of the incinerator is repaired by adopting the corundum-mullite wear-resistant plastic material and the light heat-preservation plastic material;

b6: after the installation of the Y-shaped flat steel grab nail is finished, the light heat-insulation plastic material is rammed, and after the light plastic material is hardened, the corundum-mullite wear-resistant plastic material is rammed;

b7: the coke-drilling hole door is obliquely arranged on the outer side surface of the coke-drilling hole in a position parallel to the rear arch;

b8: installing a coke-making hole door, installing a heat-insulating cover shell outside the coke-making hole door after the coke-making hole door is installed, paving heat-insulating cotton on the outer wall of the coke-making hole door, and applying the heat-insulating cotton on the outer surface of the secondary air hole for heat insulation.

Further, the secondary air pipe in the step B4 is made of phi 159 multiplied by 5 stainless steel pipes, and the distance between the Y-shaped flat steel grabbing nails is set to be 150 multiplied by 150 mm.

Further, the thickness of the corundum-mullite wear-resistant plastic added in the step B5 is set to be 180mm, and the thickness of the light heat-preservation plastic is set to be 200 mm.

Further, the inner diameter of the focus hole is set to be in a sizeAnd corundum-mullite wear-resistant plastic is applied to the periphery of the coke-striking hole by 100 mm.

Furthermore, the corundum-mullite wear-resistant plastic material can be formed by covering pins and the grabbing nails in the thickness in the construction process, and is rammed in the construction process in an one-step forming mode.

Furthermore, the coking holes are circular, the diameter of the coking holes is 350mm, the hole doors at the positions of the rear walls of the incinerators are horn-shaped tubular structures, the outer diameter of each horn-shaped tubular structure is 350mm, the diameter of the inner position of the incinerator is 550mm, high-temperature-resistant and corrosion-resistant materials are selected as manufacturing materials, the areas with the most serious coking are selected as the hole positions of the coking holes, and the positions of the cross beams and the stand columns of the incinerators are avoided in the hole opening process of the coking holes.

Furthermore, a phi 108X 5 stainless steel secondary air pipe is adopted at the interface position of the coking hole and the secondary air hole, a pipeline between the secondary air pipe and the wall-attached air pipe is connected by a flange, and the carbon steel material of the pipeline is phi 159X 4.

According to the invention, the set wall-attached air adopts secondary air, and the secondary air can supply air along the rear arch, so that coking conditions can be reduced to a certain extent, the coke striking opening can be used for periodically detecting the interior of the incinerator, and after coke blocks exist in the rear arch, the coke blocks can be timely removed on line under the condition of making safety protection measures, and the cleaning method can complete the coke cleaning step without stopping the operation of the incinerator.

Detailed Description

The technical solutions in the embodiments of the present invention are clearly and completely described, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention provides a technical scheme that: an on-line coking system of an incinerator, comprising the following steps:

firstly, the method comprises the following steps: preparation work in the early stage of transformation:

a1: firstly, shutting down the incinerator, cooling and ventilating the incinerator to the inside until the temperature is lower than 40 ℃, and cleaning garbage on a grate of the incinerator;

a2: connecting a power supply used for construction into the incinerator, and electrically connecting lighting equipment with the power supply;

a3: determining a dismantling part of the incinerator;

a4: completing safety technology crossing for constructors;

II, secondly: the transformation method comprises the following steps:

b1: respectively opening two groups of coke-making holes and two groups of secondary air holes at the left and right positions of the rear wall of the incinerator, and opening one group of coke-making holes and one group of secondary air holes on the left and right side walls of the incinerator;

b2: after the coking position is determined, a constructor removes the castable, and the removal area is required to reduce the damage area of the incinerator under the condition that additional coking holes and secondary air holes can be formed;

b3: after the incinerator is dismantled, wear-resistant materials are filled in the outer walls of the coking hole and the secondary air hole in time, a heat-insulating layer at an interface of the wear-resistant materials is dug into the periphery by 50mm, corundum-mullite wear-resistant plastic materials are filled, and a Z-shaped staggered gap is formed at an improved lining interface;

b4: after the secondary air pipes are dismantled, arranging secondary air pipes along the plane of the rear arch, wherein outlets of the secondary air pipes are positioned on the side walls of the incinerator and are parallel to each other, and welding Y-shaped flat steel staples according to V-shaped fork openings after the secondary air pipes are arranged;

b5: the lining of the incinerator is repaired by adopting the corundum-mullite wear-resistant plastic material and the light heat-preservation plastic material;

b6: after the installation of the Y-shaped flat steel grab nail is finished, the light heat-insulation plastic material is rammed, and after the light plastic material is hardened, the corundum-mullite wear-resistant plastic material is rammed;

b7: the coke-drilling hole door is obliquely arranged on the outer side surface of the coke-drilling hole in a position parallel to the rear arch;

b8: installing a coke-making hole door, installing a heat-insulating cover shell outside the coke-making hole door after the coke-making hole door is installed, paving heat-insulating cotton on the outer wall of the coke-making hole door, and applying the heat-insulating cotton on the outer surface of the secondary air hole for heat insulation.

Further, the secondary air pipe in the step B4 is made of phi 159 multiplied by 5 stainless steel pipes, and the distance between the Y-shaped flat steel grabbing nails is set to be 150 multiplied by 150 mm.

Further, the thickness of the corundum-mullite wear-resistant plastic added in the step B5 is set to be 180mm, and the thickness of the light heat-preservation plastic is set to be 200 mm.

Further, the inner diameter of the focus hole is set to be in a sizeAnd corundum-mullite wear-resistant plastic is applied to the periphery of the coke-striking hole by 100 mm.

Furthermore, the corundum-mullite wear-resistant plastic material can be formed by covering pins and the grabbing nails in the thickness in the construction process, and is rammed in the construction process in an one-step forming mode.

Furthermore, the coking holes are circular, the diameter of the coking holes is 350mm, the hole doors at the positions of the rear walls of the incinerators are horn-shaped tubular structures, the outer diameter of each horn-shaped tubular structure is 350mm, the diameter of the inner position of the incinerator is 550mm, high-temperature-resistant and corrosion-resistant materials are selected as manufacturing materials, the areas with the most serious coking are selected as the hole positions of the coking holes, and the positions of the cross beams and the stand columns of the incinerators are avoided in the hole opening process of the coking holes.

Furthermore, a phi 108X 5 stainless steel secondary air pipe is adopted at the interface position of the coking hole and the secondary air hole, a pipeline between the secondary air pipe and the wall-attached air pipe is connected by a flange, and the carbon steel material of the pipeline is phi 159X 4.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.