CN116697382A - Multi-pulse explosion ash removal device and multi-pulse explosion ash removal method - Google Patents

Abstract

The embodiment of the invention discloses a multi-pulse explosion ash removal device and a multi-pulse explosion ash removal method, wherein the ash removal device comprises a mounting part, a plurality of explosion chambers mounted on the mounting part, a group of explosion pairing pipes respectively communicated with each explosion chamber, a combustion gas supply mechanism communicated with one part of each group of explosion pairing pipes, and a combustion gas supply mechanism communicated with the other part of each group of explosion pairing pipes; the explosion chamber is internally provided with an explosion venting port through a piston seal, and one end of the explosion chamber is formed into a release end; each explosion chamber is respectively connected with an ignition electrode, and the ignition electrodes are used for igniting simultaneously or in a staggered manner, so that the explosion chambers are detonated simultaneously or in a staggered manner and the explosion venting opening is opened. According to the invention, through the cooperation arrangement of a plurality of explosion chambers and simultaneous or time-staggered blasting, the blasting time point can be controlled more freely, and the ash removal operation of various ash accumulating equipment can be purposefully solved based on different superposition modes of blasting impact force.

Description

Multi-pulse explosion ash removal device and multi-pulse explosion ash removal method

Technical Field

The embodiment of the invention relates to the technical field of explosion ash removal, in particular to a multi-pulse explosion ash removal device and a multi-pulse explosion ash removal method.

Background

At present, since most fuels are non-clean fuels, a large amount of accumulated ash is easily accumulated after combustion, and the accumulated ash is difficult to remove by light force. Therefore, a large amount of manpower and material resources are needed in the cleaning process, and more time is consumed for cleaning the cleaning device. Not only is time and labor wasted, but also the cleaning cost is high. Especially for equipment in continuous use, the ash removal directly influences the generation efficiency, and the extra burden is brought to the production cost.

Currently, in addition to the traditional combination of manual and mechanical ash removal, there is also an explosion ash removal method, for example, patent (CN 1839001 a) discloses a method and apparatus for generating air pressure pulses in a dust collection cleaning apparatus. The device delivers combustible gas and oxygen into a combustion chamber, typically having an elongated shape, ignites the mixed gas to create pressure pulses, which are then released from the combustion chamber and directed.

Although such a method can achieve a certain ash removal effect by blasting, ash deposition is not formed on a day even in long-term use of the equipment, and the types of ash deposition formed are different to some extent, so that the method of one-time blasting cannot use all the equipment, and at the same time, the ash removal effect is often limited to some extent.

Disclosure of Invention

Therefore, the embodiment of the invention provides a multi-pulse explosion ash removal device and a multi-pulse explosion ash removal method, corresponding gases are provided to the opposite explosion tube by adopting a combustion gas providing mechanism and a combustion-supporting gas providing mechanism, so that the chemical equivalent of the gases matched with combustion can be effectively controlled, the most appropriate pulse pressure is obtained, meanwhile, the explosion time point can be more freely controlled by matching a plurality of explosion chambers and simultaneously or timely blasting, and the ash removal operation of various ash deposition equipment can be purposefully solved based on different superposition modes of blasting impact force.

In order to achieve the above object, the embodiments of the present invention provide the following technical solutions:

in one aspect of the embodiment of the invention, a multi-pulse explosion ash removal device is provided, which comprises a mounting part, a plurality of explosion chambers mounted on the mounting part, a group of explosion pairing pipes respectively communicated with each explosion chamber, a combustion gas supply mechanism communicated with one part of each group of explosion pairing pipes, and a combustion gas supply mechanism communicated with the other part of each group of explosion pairing pipes; wherein,,

the explosion chamber is internally provided with an explosion venting port through a piston seal, and one end of the explosion chamber is formed into a release end;

each explosion chamber is respectively connected with an ignition electrode, and the ignition electrodes are used for igniting simultaneously or in a staggered manner, so that the explosion chambers are detonated simultaneously or in a staggered manner and the explosion venting opening is opened.

As a preferable mode of the invention, each group of the pair of detonation tubes is at least one pair, the axes of the pair of detonation tubes are on the same straight line, one of the pair of detonation tubes is communicated with the combustion gas supply mechanism, and the other is communicated with the combustion-supporting gas supply mechanism.

As a preferable mode of the invention, the ratio of the length of the detonating tube along the axial direction to the diameter is not less than 15.

As a preferable mode of the present invention, the axes of the plurality of explosion chambers are arranged in parallel, and;

an included angle alpha is formed between the axial direction of the explosion tube and the axial direction of the explosion chamber, and the included angle alpha is more than or equal to 90 degrees and more than or equal to 45 degrees.

As a preferred aspect of the present invention, the combustion gas supply mechanism includes a gas collar formed in a ring shape;

the combustion-supporting gas supply mechanism comprises a combustion-supporting gas ring pipe formed into a ring shape;

and the gas loop pipe and the combustion-supporting loop pipe are respectively communicated with the explosion-pairing pipe through electromagnetic valves.

As a preferable mode of the invention, the explosion chambers are three, and the sections of the explosion chambers are arranged in a shape of a Chinese character 'pin'.

As a preferable mode of the present invention, a portion of the explosion chamber near the release end is formed in a bell mouth structure, and an inner diameter of the bell mouth structure gradually increases from an end far from the release end to an end near the release end;

the flare structure is located outside of one of the ends of the piston.

As a preferred embodiment of the present invention, the explosion chamber includes a central explosion chamber located at the center, and a peripheral explosion chamber disposed circumferentially around the central explosion chamber.

As a preferable scheme of the invention, the number of the detonating tubes connected to the central explosion chamber is larger than the number of the detonating tubes connected to the peripheral explosion chamber;

preferably, an included angle is formed between the axial direction of the peripheral explosion chamber and the axial direction of the central explosion chamber, and the peripheral explosion chamber extends obliquely outwards from one end far away from the release end to the release end.

In another aspect of the embodiment of the present invention, there is also provided a multi-pulse explosion ash removal method, which adopts the multi-pulse explosion ash removal device according to the above, the multi-pulse explosion ash removal method includes:

s100, presetting detonation parameters, and introducing corresponding combustion gas or combustion-supporting gas into each pair of detonation tubes according to the preset detonation parameters;

s200, detonating each corresponding explosion chamber simultaneously or in a staggered manner according to the detonation requirement, and completing detonation ash removal.

Embodiments of the present invention have the following advantages:

1. the time interval that can freely set up a plurality of explosion chambers explode, accomplish both can explode simultaneously, also can singly explode in proper order to can realize going on in order or the stack of multi-wave explosion impact force goes on, and in the stack, based on the difference of interval time, the impact force after the stack also has the difference, thereby can adapt to different grade type treat ash removal equipment better, and reach the biggest ash removal effect.

2. The setting of the detonation tube is introduced, so that a gas storage channel with proper parameters can be provided for gas required by detonation, and a larger detonation pulse pressure peak value can be generated after the detonation occurs, so that the ash removal effect is better improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It will be apparent to those of ordinary skill in the art that the drawings in the following description are exemplary only and that other implementations can be obtained from the extensions of the drawings provided without inventive effort.

The structures, proportions, sizes, etc. shown in the present specification are shown only for the purposes of illustration and description, and are not intended to limit the scope of the invention, which is defined by the claims, so that any structural modifications, changes in proportions, or adjustments of sizes, which do not affect the efficacy or the achievement of the present invention, should fall within the ambit of the technical disclosure.

Fig. 1 is a schematic structural diagram of a multi-pulse explosion ash removal device provided in embodiment 1 of the present invention;

fig. 2 is a front view of the multi-pulse explosion ash removal device provided in embodiment 1 of the present invention;

FIG. 3 is a top view of the multi-pulse explosion ash removal device provided in embodiment 1 of the present invention;

FIG. 4 is a side view of the multi-pulse explosion ash removal device provided in embodiment 1 of the present invention;

FIG. 5 is a cross-sectional view of a pre-explosion chamber provided in example 1 of the present invention;

FIG. 6 is a cross-sectional view of the explosion chamber provided in example 1 of the present invention;

FIG. 7 is a cross-sectional view of a post-explosion chamber provided in example 1 of the present invention;

fig. 8 is a schematic structural view of a piston according to embodiment 1 of the present invention;

fig. 9 is a schematic structural diagram of a multi-pulse explosion ash removal device provided in embodiment 2 of the present invention;

fig. 10 is a front view of a multi-pulse explosion ash removal device provided in embodiment 2 of the present invention;

FIG. 11 is a top view of a multi-pulse explosion ash removal device according to embodiment 2 of the present invention;

FIG. 12 is a cross-sectional view of a pre-explosion chamber of the multi-pulse explosion ash removal device provided in embodiment 2 of the present invention;

FIG. 13 is a cross-sectional view of a middle explosion chamber of the multi-pulse explosion ash removal device provided in embodiment 2 of the present invention;

FIG. 14 is a cross-sectional view of a post-explosion chamber of the multi-pulse explosion ash removal device provided in embodiment 2 of the present invention;

fig. 15 is a schematic structural diagram of a multi-pulse explosion ash removal device provided in embodiment 3 of the present invention;

FIG. 16 is a front view of the multi-pulse explosion ash removal device provided in embodiment 3 of the present invention;

FIG. 17 is a top view of a multiple pulse explosion ash removal device according to embodiment 3 of the present invention;

FIG. 18 is a side view of the multiple pulse explosion ash removal device provided in embodiment 3 of the present invention;

FIG. 19 is a cross-sectional view of a pre-explosion chamber of a multi-pulse explosion ash removal device provided in embodiment 3 of the present invention;

FIG. 20 is a cross-sectional view of a middle explosion chamber of the multi-pulse explosion ash removal device provided in embodiment 3 of the present invention;

FIG. 21 is a cross-sectional view of a post-explosion chamber of the multi-pulse explosion ash removal device provided in embodiment 3 of the present invention;

FIG. 22 is a schematic structural diagram of a multi-pulse explosion ash removal device according to embodiment 4 of the present invention;

fig. 23 is a front view of a multi-pulse explosion ash removal device provided in embodiment 4 of the present invention;

FIG. 24 is a top view of a multiple pulse explosion ash removal device according to example 4 of the present invention;

FIG. 25 is a side view of a multiple pulse explosion ash removal device according to example 4 of the present invention;

FIG. 26 is a cross-sectional view of a pre-explosion chamber of a multi-pulse explosion ash removal device provided in embodiment 4 of the invention;

FIG. 27 is a cross-sectional view of a middle explosion chamber of the multi-pulse explosion ash removal device provided in embodiment 4 of the invention;

FIG. 28 is a cross-sectional view of a post-explosion chamber of the multi-pulse explosion ash removal device provided in embodiment 4 of the invention;

fig. 29 is a schematic view of a partial structure of a multi-pulse explosion ash removal device according to embodiment 5 of the present invention;

fig. 30 is a cross-sectional view of an explosion chamber of the multi-pulse explosion ash removal device provided in embodiment 5 of the present invention.

In the figure:

100-explosion chamber; 200-combustion gas supply means; 300-combustion-supporting gas supply means;

1-a gas loop; 2-a combustion-supporting annular pipe; 3-a front explosion chamber; 4-a middle explosion chamber; 5-post explosion chamber; 6-an ignition electrode; 7-an electromagnetic valve; 8-connecting plates; 9-an air inlet joint; 10-connecting pipes; 11-pairing explosion tubes; 12-flat cover; 13-a pre-explosion chamber body; 14-a piston; 15-a gas spring chamber; 16-flare structure; 17-ignition electrode contacts; 18-a middle explosion chamber body; 19-a post-explosion chamber body; 20-piston cavity; 21-copper ring; 22-O-shaped rubber sealing rings; 23-ring grooves; 24-piston crown; 25-piston skirt; 26-piston skirt; 27-piston end face; 28-flat cover of gas spring; 29-a central explosion chamber; 30-a peripheral explosion chamber.

Detailed Description

Other advantages and advantages of the present invention will become apparent to those skilled in the art from the following detailed description, which, by way of illustration, is to be read in connection with certain specific embodiments, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

The technical scheme of the invention is further described through specific embodiments with reference to the accompanying drawings.

Example 1

Fig. 1-8 are schematic structural diagrams of ash removing devices adopting triple pulse explosion in the present invention, and each explosion chamber 100 (three explosion chambers 100 are respectively named as front explosion chamber 3, middle explosion chamber 4 and rear explosion chamber 5) is respectively provided with 2 positive paired explosion tubes 11 (i.e. the axes of the paired explosion tubes 11 are 90 degrees with the axes of the explosion chambers 100, and the two are vertical to each other, namely the positive paired explosion tubes 11).

The gas loop pipe 1 and the auxiliary gas loop pipe 2 are of hollow annular pipe structures, the gas loop pipe 1 is filled with high-pressure or medium-pressure gas, and the auxiliary gas loop pipe 2 is filled with high-pressure or medium-pressure oxygen or compressed air. The gas loop pipe 1 supplies high-pressure or medium-pressure gas to the front explosion chamber 3, the middle explosion chamber 4 and the rear explosion chamber 5 through connecting pipes 10 under the control of the electromagnetic valve 7. Likewise, the combustion-supporting gas loop 2 supplies high-pressure or medium-pressure oxygen or compressed air to the pre-explosion chamber 3, the middle explosion chamber 4 and the post-explosion chamber 5 under the control of the electromagnetic valve 7 through the connecting pipe 10. The centers of the center circular lines of the gas circular pipe 1 and the combustion-supporting gas ring pipe 2 and the connecting plate 8 (namely, the mounting part is used for mounting the explosion chamber 100) are coincident, the connecting plate 8 is arranged in front, the middle is the gas circular pipe 1, and the rear is the combustion-supporting gas ring pipe 2. An air inlet joint 9 is arranged on the gas loop pipe 1 and is connected with a gas source pipeline; an air inlet joint 9 is arranged on the combustion-supporting annular pipe 2 and is connected with an oxygen or air source pipeline.

As can be seen from fig. 2, the front explosion chamber 3, the middle explosion chamber 4 and the rear explosion chamber 5 are in a shape of a figure of a Chinese character 'pin', the front explosion chamber 3 is positioned on the right side of the figure of a Chinese character 'pin', the middle explosion chamber 4 is positioned on the upper side of the figure of a Chinese character 'pin', and the rear explosion chamber 5 is positioned on the left side of the figure of a Chinese character 'pin'. The azimuth designations "front", "middle" and "rear" herein also refer to the distance between the center of the squib 11 connected to each explosion chamber and the connecting plate 8, namely "front" and "middle" and "rear".

In fig. 5, the pre-explosion chamber 3 is a closed space formed by 2 symmetrically arranged paired explosion tubes 11, a piston 14, a pre-explosion chamber body 13 (i.e. a pipe part of the whole explosion chamber 100), an O-shaped rubber sealing ring 22 and the like, wherein an included angle between the central line of each paired explosion tube 11 and the central line of the pre-explosion chamber body 13 is alpha=90°. The front end of the front explosion chamber body 13 is a horn mouth structure 16 (i.e. the front explosion chamber body 13 is divided into two parts by a piston 14, one part is named as front end and the other part is named as rear end), the piston top 24 of the front explosion chamber body 13, which is the piston 14, a gas spring flat cover 28 and a gas inlet joint 9 connected with the gas spring flat cover form a gas spring chamber 15,the gas spring chamber 15 is filled with N ₂ Or Ar gas, as a sealing pressure between the piston 14 and the outlet end face of the bell mouth structure 16. The front explosion chamber body 13 is symmetrically provided with the explosion pairing pipes 11 with equal length at a distance from the outlet end face of the bell mouth structure 16, and the other end of the explosion pairing pipe 11 is closed by a flat cover 12. The booster 11 which is communicated with the front explosion chamber 3 and needs to be connected with one side of the front explosion chamber body 13 which is positioned at the inner side of the 'article' can be connected with the front explosion chamber body 13 after passing through the middle of the connecting line of the two pipes of the middle explosion chamber body 18 and the rear explosion chamber body 19 which form the 'article' shape. The opposite squib 11 (i.e., the other squib 11 connected to the pre-explosion chamber 3) is symmetrically and reversely arranged, while the distal end of the reversely arranged squib 11 is closed with a flat cover 12. The front explosion chamber body 13 is provided with an ignition electrode joint 17 at a distance from the outlet end face of the horn mouth structure 16 and is connected with the ignition electrode 6.

In fig. 6, the middle explosion chamber 4 is a closed space formed by 2 symmetrically arranged paired explosion tubes 11, a piston 14, a middle explosion chamber body 18, an O-shaped rubber sealing ring 22 and the like, wherein an included angle between the central line of each paired explosion tube 11 and the central line of the middle explosion chamber body 18 is alpha=90°. The front end of the middle explosion chamber body 18 is a horn mouth structure 16, the piston top 24 of the piston 14 at the rear end of the middle explosion chamber body 18, a gas spring flat cover 28 and a gas inlet joint 9 connected with the gas spring flat cover form a gas spring chamber 15, and the gas spring chamber is filled with N ₂ Or Ar gas, as a sealing pressure between the piston 14 and the outlet end face of the bell mouth structure 16. The middle explosion chamber body 18 is symmetrically arranged with the equal-length opposite explosion tubes 11 at a distance from the outlet end face of the bell mouth structure 16, and the other end of the opposite explosion tubes 11 is closed by a flat cover 12. The opposite explosion tube 11 which is communicated with the middle explosion chamber 4 and needs to be connected with one surface of the middle explosion chamber body 18 positioned at the inner side of the 'article' is penetrated from the middle of the connecting line of the two tubes of the rear explosion chamber body 19 and the front explosion chamber body 13 which form the 'article'. The opposite squib 11 (i.e., the other squib 11 connected to the middle squib chamber 4) is symmetrically and reversely arranged, while the distal end of the reversely arranged squib 11 is closed with a flat cover 12. The middle explosion chamber body 18 is provided with an ignition electrode joint 17 at a distance from the outlet end face of the horn mouth structure 16 and is connected with the ignition electrode 6.

In fig. 7, the post-explosion chamber 5 consists of 2 symmetrically arranged detonating tubes 11,The piston 14, the post explosion chamber body 19, the O-shaped rubber sealing ring 22 and the like, wherein the included angle between the central line of each pair of explosion tubes 11 and the central line of the post explosion chamber body 19 is alpha=90°. The front end of the post-explosion chamber body 19 is a horn mouth structure 16, a piston top 24 of the post-explosion chamber body 19, the rear end of which is a piston 14, a gas spring flat cover 28 and a gas inlet connector 9 connected with the gas spring flat cover 28 form a gas spring chamber 15, and the gas spring chamber 15 is filled with N ₂ Or Ar gas, as a sealing pressure between the piston 14 and the outlet end face of the bell mouth structure 16. The post-explosion chamber body 19 is symmetrically arranged with the detonation tube 11 with equal length at a distance from the outlet end face of the bell mouth structure 16, and the other end of the detonation tube 11 is closed by a flat cover 12. The booster 11 which is communicated with the post-explosion chamber 5 and needs to be connected with one surface of the post-explosion chamber body 19 positioned on the inner side of the 'article' is penetrated from the middle of the connecting line of the two pipes of the middle-explosion chamber body 18 and the front-explosion chamber body 13 which form the 'article'. The opposite squib 11 is symmetrically and reversely arranged, and the distal end of the reversely arranged squib 11 is closed by a flat cover 12. The post-explosion chamber body 19 is provided with an ignition electrode joint 17 at a distance from the outlet end face of the horn mouth structure 16 and is connected with the ignition electrode 6.

In fig. 8, the piston 14 comprises a piston top 24, a piston big skirt 25, a piston small skirt 26 and a piston end surface 27, wherein 4 ring grooves 23 are sequentially arranged on the wall surface of the piston big skirt 25 from top to bottom, and a wear-resistant copper ring 21, an O-shaped rubber seal ring 22 and a wear-resistant copper ring 21 are sequentially arranged from top to bottom. The piston end surface 27 is an annular plane, and the piston end surface 27 is in contact with the peripheral plane of the outlet of the bell mouth structure 16 under the pressure driving of the gas spring chamber 15, so that the sealing effect is achieved. The piston 14 is of a hollow structure, and the piston cavity 20 is communicated with the bell mouth structure 16 in a sealing state and isolated from premixed combustible gas.

Example 2

As shown in fig. 9-14, the ash removing device of the present invention adopts a triple pulse explosion mode, and each explosion chamber 100 (three explosion chambers 100 are respectively named as a front explosion chamber 3, a middle explosion chamber 4 and a rear explosion chamber 5) is respectively provided with 4 positive paired explosion tubes 11 (i.e. the axes of the paired explosion tubes 11 and the explosion chambers 100 are 90 degrees and are in a vertical state, and the two explosion chambers are the positive paired explosion tubes 11).

In fig. 9-11, the gas loop pipe 1 and the auxiliary gas loop pipe 2 are both hollow annular pipe structures, the gas loop pipe 1 is filled with high-pressure or medium-pressure gas, and the auxiliary gas loop pipe 2 is filled with high-pressure or medium-pressure oxygen or compressed air. The gas loop pipe 1 supplies high-pressure or medium-pressure gas to the front explosion chamber 3, the middle explosion chamber 4 and the rear explosion chamber 5 through connecting pipes 10 under the control of the electromagnetic valve 7. Likewise, the combustion-supporting gas loop 2 supplies high-pressure or medium-pressure oxygen or compressed air to the pre-explosion chamber 3, the middle explosion chamber 4 and the post-explosion chamber 5 under the control of the electromagnetic valve 7 through the connecting pipe 10. The center annular lines of the gas annular pipe 1 and the combustion-supporting gas annular pipe 2 are coincident with the center of the connecting plate 8, the connecting plate 8 is arranged in front, the middle is the gas annular pipe 1, and the combustion-supporting gas annular pipe 2 is arranged behind. An air inlet joint 9 is arranged on the gas loop pipe 1 and is connected with a gas source pipeline; an air inlet joint 9 is arranged on the combustion-supporting annular pipe 2 and is connected with an oxygen or air source pipeline.

As can be seen from fig. 9-11, the front explosion chamber 3, the middle explosion chamber 4 and the rear explosion chamber 5 are in a shape of a figure of a Chinese character 'pin', the front explosion chamber 3 is positioned on the right side of the figure of a Chinese character 'pin', the middle explosion chamber 4 is positioned on the upper side of the figure of a Chinese character 'pin', and the rear explosion chamber 5 is positioned on the left side of the figure of a Chinese character 'pin'. The azimuth designations "front", "middle" and "rear" herein also refer to the distance between the center of the squib 11 connected to each explosion chamber and the connecting plate 8, namely "front" and "middle" and "rear".

In fig. 12, the pre-explosion chamber 3 is a closed space formed by 4 paired explosion tubes 11, a piston 14, a pre-explosion chamber body 13, an O-shaped rubber sealing ring 22 and the like which are arranged in a cross shape, wherein an included angle between the central line of each paired explosion tube 11 and the central line of the pre-explosion chamber body 13 is alpha=90°. The front end of the front explosion chamber body 13 is a bell mouth structure 16, the rear end of the front explosion chamber body 13 is a piston top 24 of a piston 14, a gas spring flat cover 28 and a gas inlet joint 9 connected with the piston top 24, so that a gas spring chamber 15 is formed, and the gas spring chamber is filled with N2 or Ar gas and is used as sealing pressure between the piston 14 and the outlet end face of the bell mouth structure 16. The front explosion chamber body 13 is symmetrically provided with the explosion pairing pipes 11 with equal length at a distance from the outlet end face of the bell mouth structure 16, and the other end of the explosion pairing pipe 11 is closed by a flat cover 12. The opposite explosion tube 11 of the front explosion chamber 3 which is opposite to the inner side of the 'article' is penetrated from the middle of the connecting line of the two tubes of the upper middle explosion chamber body 18 and the left rear explosion chamber body 19 which form the 'article' shape. The opposite squib 11 is symmetrically and reversely arranged, and the distal end of the reversely arranged squib 11 is closed by a flat cover 12. Two detonating tubes 11 are symmetrically arranged on the vertical line of the two lines of the two detonating tubes 11 in a cross shape, and the distal ends of the two detonating tubes 11 are closed by a flat cover 12. The front explosion chamber body 13 is provided with an ignition electrode joint 17 at a distance from the outlet end face of the horn mouth structure 16 and is connected with the ignition electrode 6.

In fig. 13, the middle explosion chamber 4 is a closed space formed by 4 paired explosion tubes 11, a piston 14, a middle explosion chamber body 18, an O-shaped rubber sealing ring 22 and the like which are arranged in a cross shape, wherein an included angle between the central line of each paired explosion tube 11 and the central line of the middle explosion chamber body 18 is alpha=90°. The front end of the middle explosion chamber body 18 is a bell mouth structure 16, the rear end of the middle explosion chamber body 18 is a piston top 24 of a piston 14, a gas spring flat cover 28 and a gas inlet joint 9 connected with the gas spring flat cover form a gas spring chamber 15, and the gas spring chamber is filled with N2 or Ar gas and is used as sealing pressure between the piston 14 and the outlet end face of the bell mouth structure 16. The middle explosion chamber body 18 is symmetrically arranged with the equal-length opposite explosion tubes 11 at a distance from the outlet end face of the bell mouth structure 16, and the other end of the opposite explosion tubes 11 is closed by a flat cover 12. The opposite explosion tube 11 of the middle explosion chamber 4 which is opposite to the inner side of the 'article' is penetrated from the middle of the connecting line of the two tubes of the left rear explosion chamber body 19 and the right front explosion chamber body 13 which form the 'article' shape. The opposite squib 11 is symmetrically and reversely arranged, and the distal end of the reversely arranged squib 11 is closed by a flat cover 12. The middle explosion chamber body 18 is provided with an ignition electrode joint 17 at a distance from the outlet end face of the horn mouth structure 16 and is connected with the ignition electrode 6.

In fig. 14, the post-explosion chamber 5 is a closed space formed by 4 paired explosion tubes 11, a piston 14, a post-explosion chamber body 19, an O-shaped rubber sealing ring 22 and the like which are arranged in a cross shape, wherein the included angle between the central line of each paired explosion tube 11 and the central line of the post-explosion chamber body 19 is alpha=90°. The front end of the post-explosion chamber body 19 is provided with a bell mouth structure 16, the rear end of the post-explosion chamber body 19 is provided with a piston top 24 of a piston 14, a gas spring flat cover 28 and a gas inlet joint 9 connected with the piston top, so that a gas spring chamber 15 is formed, and the gas spring chamber 15 is filled with N2 or Ar gas and is used as sealing pressure between the piston 14 and the outlet end face of the bell mouth structure 16. The post-explosion chamber body 19 is symmetrically arranged with the detonation tube 11 with equal length at a distance from the outlet end face of the bell mouth structure 16, and the other end of the detonation tube 11 is closed by a flat cover 12. The opposite explosion tube 11 of the rear explosion chamber 5 which is opposite to the inner side of the 'article' is penetrated from the middle of the connecting line of the two tubes of the upper middle explosion chamber body 18 and the right front explosion chamber body 13 which form the 'article' shape. The opposite squib 11 is symmetrically and reversely arranged, and the distal end of the reversely arranged squib 11 is closed by a flat cover 12. The post-explosion chamber body 19 is provided with an ignition electrode joint 17 at a distance from the outlet end face of the horn mouth structure 16 and is connected with the ignition electrode 6.

In fig. 8, the piston 14 comprises a piston crown 24, a piston skirt 25, a piston skirt 26 and a piston end surface 27, wherein 4 ring grooves 23 are sequentially arranged on the wall surface of the piston skirt 25 from top to bottom, and a wear-resistant copper ring 21, an O-shaped rubber seal 22 and a wear-resistant copper ring 21 are sequentially arranged from top to bottom. The piston end surface 27 is an annular plane, and the piston end surface 27 is in contact with the peripheral plane of the outlet of the bell mouth structure 16 under the pressure driving of the gas spring chamber 15, so that the sealing effect is achieved. The piston 14 is of a hollow structure, and the piston cavity 20 is communicated with the bell mouth structure 16 in a sealing state and isolated from premixed combustible gas.

Example 3

Fig. 15-21 show a schematic structural diagram of an ash removing device adopting a triple pulse explosion mode in the present invention, and each explosion chamber 100 (because of being triple, three explosion chambers 100 are respectively named as a front explosion chamber 3, a middle explosion chamber 4 and a rear explosion chamber 5) is respectively provided with 2 inclined opposite explosion tubes 11 (i.e. the axis of the opposite explosion tubes 11 is not perpendicular to the axis of the explosion chambers 100, preferably, the included angle is 45 ° -90 °), and then the opposite explosion tubes 11 are inclined).

In fig. 15-17, the gas loop pipe 1 and the auxiliary gas loop pipe 2 are both of an inner hollow annular pipe structure, the gas loop pipe 1 is filled with high-pressure or medium-pressure gas, and the combustion-supporting gas loop pipe 2 is filled with high-pressure or medium-pressure oxygen or compressed air. The gas loop pipe 1 supplies high-pressure or medium-pressure gas to the front explosion chamber 3, the middle explosion chamber 4 and the rear explosion chamber 5 through connecting pipes 10 under the control of the electromagnetic valve 7. Likewise, the combustion-supporting gas loop 2 supplies high-pressure or medium-pressure oxygen or compressed air to the pre-explosion chamber 3, the middle explosion chamber 4 and the post-explosion chamber 5 under the control of the electromagnetic valve 7 through the connecting pipe 10. The center annular lines of the gas annular pipe 1 and the combustion-supporting gas annular pipe 2 are coincident with the center of the connecting plate 8, the connecting plate 8 is arranged in front, the middle is the gas annular pipe 1, and the combustion-supporting gas annular pipe 2 is arranged behind. An air inlet joint 9 is arranged on the gas loop pipe 1 and is connected with a gas source pipeline; an air inlet joint 9 is arranged on the combustion-supporting annular pipe 2 and is connected with an oxygen or air source pipeline.

As can be seen from fig. 16, the front explosion chamber 3, the middle explosion chamber 4 and the rear explosion chamber 5 are in a shape of a figure of a Chinese character 'pin', the front explosion chamber 3 is positioned on the right side of the figure of a Chinese character 'pin', the middle explosion chamber 4 is positioned on the upper side of the figure of a Chinese character 'pin', and the rear explosion chamber 5 is positioned on the left side of the figure of a Chinese character 'pin'. The azimuth designations "front", "middle" and "rear" herein also refer to the distance between the center of the squib 11 connected to each explosion chamber and the connecting plate 8, namely "front" and "middle" and "rear".

In fig. 19, the pre-explosion chamber 3 is a closed space formed by 2 symmetrically arranged paired explosion tubes 11, a piston 14, a pre-explosion chamber body 13, an O-shaped rubber sealing ring 22 and the like, wherein an included angle between the central line of each paired explosion tube 11 and the central line of the pre-explosion chamber body 13 is alpha=60°. The front end of the front explosion chamber body 13 is a bell mouth structure 16, the rear end of the front explosion chamber body 13 is a piston top 24 of a piston 14, a gas spring flat cover 28 and a gas inlet joint 9 connected with the piston top 24, so that a gas spring chamber 15 is formed, and the gas spring chamber is filled with N2 or Ar gas and is used as sealing pressure between the piston 14 and the outlet end face of the bell mouth structure 16. The front explosion chamber body 13 is symmetrically provided with the explosion pairing pipes 11 with equal length at a distance from the outlet end face of the bell mouth structure 16, and the other end of the explosion pairing pipe 11 is closed by a flat cover 12. The opposite explosion tube 11 of the front explosion chamber 3 which is opposite to the inner side of the 'article' is penetrated from the middle of the connecting line of the two tubes of the upper middle explosion chamber body 18 and the left rear explosion chamber body 19 which form the 'article' shape. The opposite squib 11 is symmetrically and reversely arranged, and the distal end of the reversely arranged squib 11 is closed by a flat cover 12. The front explosion chamber body 13 is provided with an ignition electrode joint 17 at a distance from the outlet end face of the horn mouth structure 16 and is connected with the ignition electrode 6.

In fig. 20, the middle explosion chamber 4 is a closed space formed by 2 symmetrically arranged explosion pairing pipes 11, a piston 14, a middle explosion chamber body 18, an O-shaped rubber sealing ring 22 and the like, wherein the included angle between the central line of each explosion pairing pipe 11 and the central line of the middle explosion chamber body 18 is alpha=60°. The front end of the middle explosion chamber body 18 is a bell mouth structure 16, the rear end of the middle explosion chamber body 18 is a piston top 24 of a piston 14, a gas spring flat cover 28 and a gas inlet joint 9 connected with the gas spring flat cover form a gas spring chamber 15, and the gas spring chamber is filled with N2 or Ar gas and is used as sealing pressure between the piston 14 and the outlet end face of the bell mouth structure 16. The middle explosion chamber body 18 is symmetrically arranged with the equal-length opposite explosion tubes 11 at a distance from the outlet end face of the bell mouth structure 16, and the other end of the opposite explosion tubes 11 is closed by a flat cover 12. The opposite explosion tube 11 of the middle explosion chamber 4 which is opposite to the inner side of the 'article' is penetrated from the middle of the connecting line of the two tubes of the left rear explosion chamber body 19 and the right front explosion chamber body 13 which form the 'article' shape. The opposite squib 11 is symmetrically and reversely arranged, and the distal end of the reversely arranged squib 11 is closed by a flat cover 12. The middle explosion chamber body 18 is provided with an ignition electrode joint 17 at a distance from the outlet end face of the horn mouth structure 16 and is connected with the ignition electrode 6.

In fig. 21, the post-explosion chamber 5 is a closed space formed by 2 symmetrically arranged detonating tubes 11, a piston 14, a post-explosion chamber body 19, an O-shaped rubber sealing ring 22 and the like, wherein an included angle between the central line of each detonating tube 11 and the central line of the post-explosion chamber body 19 is alpha=60°. The front end of the post-explosion chamber body 19 is provided with a bell mouth structure 16, the rear end of the post-explosion chamber body 19 is provided with a piston top 24 of a piston 14, a gas spring flat cover 28 and a gas inlet joint 9 connected with the piston top, so that a gas spring chamber 15 is formed, and the gas spring chamber 15 is filled with N2 or Ar gas and is used as sealing pressure between the piston 14 and the outlet end face of the bell mouth structure 16. The post-explosion chamber body 19 is symmetrically arranged with the detonation tube 11 with equal length at a distance from the outlet end face of the bell mouth structure 16, and the other end of the detonation tube 11 is closed by a flat cover 12. The opposite explosion tube 11 of the rear explosion chamber 5 which is opposite to the inner side of the 'article' is penetrated from the middle of the connecting line of the two tubes of the upper middle explosion chamber body 18 and the right front explosion chamber body 13 which form the 'article' shape. The opposite squib 11 is symmetrically and reversely arranged, and the distal end of the reversely arranged squib 11 is closed by a flat cover 12. The post-explosion chamber body 19 is provided with an ignition electrode joint 17 at a distance from the outlet end face of the horn mouth structure 16 and is connected with the ignition electrode 6.

In fig. 8, the piston 14 comprises a piston top 24, a piston big skirt 25, a piston small skirt 26 and a piston end surface 27, wherein 4 ring grooves 23 are sequentially arranged on the wall surface of the piston big skirt 25 from top to bottom, and a wear-resistant copper ring 21, an O-shaped rubber seal ring 22 and a wear-resistant copper ring 21 are sequentially arranged from top to bottom. The piston end surface 27 is an annular plane, and the piston end surface 27 is in contact with the peripheral plane of the outlet of the bell mouth structure 16 under the pressure driving of the gas spring chamber 15, so that the sealing effect is achieved. The piston 14 is of a hollow structure, and the piston cavity 20 is communicated with the bell mouth structure 16 in a sealing state and isolated from premixed combustible gas.

Example 4

Fig. 15-21 show a schematic structural diagram of an ash removing device adopting a triple pulse explosion mode in the present invention, and each explosion chamber 100 (because of being triple, three explosion chambers 100 are respectively named as a front explosion chamber 3, a middle explosion chamber 4 and a rear explosion chamber 5) is respectively provided with 4 inclined opposite explosion tubes 11 (i.e. the axis of the opposite explosion tubes 11 is not perpendicular to the axis of the explosion chambers 100, preferably, the included angle is 45 ° -90 °), and then the opposite explosion tubes 11 are inclined).

In fig. 22-24, the gas loop pipe 1 and the auxiliary gas loop pipe 2 are both of an inner hollow annular pipe structure, the gas loop pipe 1 is filled with high-pressure or medium-pressure gas, and the combustion-supporting gas loop pipe 2 is filled with high-pressure or medium-pressure oxygen or compressed air. The gas loop pipe 1 supplies high-pressure or medium-pressure gas to the front explosion chamber 3, the middle explosion chamber 4 and the rear explosion chamber 5 through connecting pipes 10 under the control of the electromagnetic valve 7. Likewise, the combustion-supporting gas loop 2 supplies high-pressure or medium-pressure oxygen or compressed air to the pre-explosion chamber 3, the middle explosion chamber 4 and the post-explosion chamber 5 under the control of the electromagnetic valve 7 through the connecting pipe 10. The center annular lines of the gas annular pipe 1 and the combustion-supporting gas annular pipe 2 are coincident with the center of the connecting plate 8, the connecting plate 8 is arranged in front, the middle is the gas annular pipe 1, and the combustion-supporting gas annular pipe 2 is arranged behind. An air inlet joint 9 is arranged on the gas loop pipe 1 and is connected with a gas source pipeline; an air inlet joint 9 is arranged on the combustion-supporting annular pipe 2 and is connected with an oxygen or air source pipeline.

As can be seen from fig. 23, the front explosion chamber 3, the middle explosion chamber 4 and the rear explosion chamber 5 are in a shape of a figure of a Chinese character 'pin', the front explosion chamber 3 is positioned on the right side of the figure of a Chinese character 'pin', the middle explosion chamber 4 is positioned on the upper side of the figure of a Chinese character 'pin', and the rear explosion chamber 5 is positioned on the left side of the figure of a Chinese character 'pin'. The azimuth designations "front", "middle" and "rear" herein also refer to the distance between the center of the squib 11 connected to each explosion chamber and the connecting plate 8, namely "front" and "middle" and "rear".

In fig. 26, the pre-explosion chamber 3 is a closed space formed by 4 paired explosion tubes 11, a piston 14, a pre-explosion chamber body 13, an O-shaped rubber sealing ring 22 and the like which are arranged in a cross shape, wherein an included angle between the central line of each paired explosion tube 11 and the central line of the pre-explosion chamber body 13 is alpha=60°. The front end of the front explosion chamber body 13 is a bell mouth structure 16, the rear end of the front explosion chamber body 13 is a piston top 24 of a piston 14, a gas spring flat cover 28 and a gas inlet joint 9 connected with the piston top 24, so that a gas spring chamber 15 is formed, and the gas spring chamber is filled with N2 or Ar gas and is used as sealing pressure between the piston 14 and the outlet end face of the bell mouth structure 16. The front explosion chamber body 13 is symmetrically provided with the explosion pairing pipes 11 with equal length at a distance from the outlet end face of the bell mouth structure 16, and the other end of the explosion pairing pipe 11 is closed by a flat cover 12. The opposite explosion tube 11 of the front explosion chamber 3 which is opposite to the inner side of the 'article' is penetrated from the middle of the connecting line of the two tubes of the upper middle explosion chamber body 18 and the left rear explosion chamber body 19 which form the 'article' shape. The opposite squib 11 is symmetrically and reversely arranged, and the distal end of the reversely arranged squib 11 is closed by a flat cover 12. The front explosion chamber body 13 is provided with an ignition electrode joint 17 at a distance from the outlet end face of the horn mouth structure 16 and is connected with the ignition electrode 6.

In fig. 27, the middle explosion chamber 4 is a closed space formed by 4 paired explosion tubes 11, a piston 14, a middle explosion chamber body 18, an O-shaped rubber sealing ring 22 and the like which are arranged in a cross shape, wherein an included angle between the central line of each paired explosion tube 11 and the central line of the middle explosion chamber body 18 is alpha=60°. The front end of the middle explosion chamber body 18 is a bell mouth structure 16, the rear end of the middle explosion chamber body 18 is a piston top 24 of a piston 14, a gas spring flat cover 28 and a gas inlet joint 9 connected with the gas spring flat cover form a gas spring chamber 15, and the gas spring chamber is filled with N2 or Ar gas and is used as sealing pressure between the piston 14 and the outlet end face of the bell mouth structure 16. The middle explosion chamber body 18 is symmetrically arranged with the equal-length opposite explosion tubes 11 at a distance from the outlet end face of the bell mouth structure 16, and the other end of the opposite explosion tubes 11 is closed by a flat cover 12. The opposite explosion tube 11 of the middle explosion chamber 4 which is opposite to the inner side of the 'article' is penetrated from the middle of the connecting line of the two tubes of the left rear explosion chamber body 19 and the right front explosion chamber body 13 which form the 'article' shape. The opposite squib 11 is symmetrically and reversely arranged, and the distal end of the reversely arranged squib 11 is closed by a flat cover 12. The middle explosion chamber body 18 is provided with an ignition electrode joint 17 at a distance from the outlet end face of the horn mouth structure 16 and is connected with the ignition electrode 6.

In fig. 28, the post-explosion chamber 5 is a closed space formed by 4 paired explosion tubes 11, a piston 14, a post-explosion chamber body 19, an O-shaped rubber sealing ring 22 and the like which are arranged in a cross shape, wherein an included angle between the central line of each paired explosion tube 11 and the central line of the post-explosion chamber body 19 is alpha=60°. The front end of the post-explosion chamber body 19 is provided with a bell mouth structure 16, the rear end of the post-explosion chamber body 19 is provided with a piston top 24 of a piston 14, a gas spring flat cover 28 and a gas inlet joint 9 connected with the piston top, so that a gas spring chamber 15 is formed, and the gas spring chamber 15 is filled with N2 or Ar gas and is used as sealing pressure between the piston 14 and the outlet end face of the bell mouth structure 16. The post-explosion chamber body 19 is symmetrically arranged with the detonation tube 11 with equal length at a distance from the outlet end face of the bell mouth structure 16, and the other end of the detonation tube 11 is closed by a flat cover 12. The opposite explosion tube 11 of the rear explosion chamber 5 which is opposite to the inner side of the 'article' is penetrated from the middle of the connecting line of the two tubes of the upper middle explosion chamber body 18 and the right front explosion chamber body 13 which form the 'article' shape. The opposite squib 11 is symmetrically and reversely arranged, and the distal end of the reversely arranged squib 11 is closed by a flat cover 12. The post-explosion chamber body 19 is provided with an ignition electrode joint 17 at a distance from the outlet end face of the horn mouth structure 16 and is connected with the ignition electrode 6.

In fig. 8, the piston 14 comprises a piston top 24, a piston big skirt 25, a piston small skirt 26 and a piston end surface 27, wherein 4 ring grooves 23 are sequentially arranged on the wall surface of the piston big skirt 25 from top to bottom, and a wear-resistant copper ring 21, an O-shaped rubber seal ring 22 and a wear-resistant copper ring 21 are sequentially arranged from top to bottom. The piston end surface 27 is an annular plane, and the piston end surface 27 is in contact with the peripheral plane of the outlet of the bell mouth structure 16 under the pressure driving of the gas spring chamber 15, so that the sealing effect is achieved. The piston 14 is of a hollow structure, and the piston cavity 20 is communicated with the bell mouth structure 16 in a sealing state and isolated from premixed combustible gas.

Example 5

As shown in fig. 29 and 30, the explosion chambers 100 are provided in plural on the basis of embodiment 1, and the distribution of the explosion chambers 100 is a center explosion chamber 29 located at the center and peripheral explosion chambers 30 provided around the center explosion chamber 29 (here, the center explosion chamber 29 is preferably one, and the peripheral explosion chambers 30 are preferably arranged at equal intervals in the circumferential direction). Meanwhile, as the peripheral explosion chamber 30 is close to the inner wall of the structure to be cleaned, the extension direction of the peripheral explosion chamber 30 is further enabled to be outwards Zhou Xiexiang to be diffused, so that the effective cleaning of deposited dust on the inner wall to be cleaned is effectively realized.

Based on the setting mode, the invention can lead the internal blasting effect to be different by presetting the detonation parameters and aiming at the adjustment of the gas introduced into each detonation tube 11 and combining the control of the detonation time, thereby realizing the pulse explosion ash removal operation under different environments and requirements in a targeted manner. During operation, the gas loop 1 provides a metering of the explosive gas, which is controlled by the connection pipe 10 and the solenoid valve 7 communicating therewith. The combustion-supporting gas loop 2 provides a metering of oxygen or air, which is supplied by means of a connection pipe 10 and a solenoid valve 7 in communication therewith. The explosion gas and oxygen (air) are arranged in a stoichiometric ratio, and when the stoichiometric ratio is 1, the highest explosion pulse pressure peak value can be obtained. It should be noted that, the gas ring pipe 1 and the combustion supporting gas ring pipe 2, the booster pipe 11, the front booster chamber body 13, the middle booster chamber body 18 and the rear booster chamber body 19 can be all selected as steel pipe structures, so that the explosion pulse ash cleaning device has better pressure bearing performance and better safety performance. And the lengths of the bell mouth structures 16 arranged at the outlets of the front explosion chamber 3, the middle explosion chamber 4 and the rear explosion chamber 5 can be the same or different.

While the invention has been described in detail in the foregoing general description and specific examples, it will be apparent to those skilled in the art that modifications and improvements can be made thereto. Accordingly, such modifications or improvements may be made without departing from the spirit of the invention and are intended to be within the scope of the invention as claimed.

Claims (10)

1. A multiple pulse explosion ash removal device, characterized by comprising a mounting part, a plurality of explosion chambers (100) mounted on the mounting part, a group of explosion pairing pipes (11) respectively communicated with each explosion chamber (100), a combustion gas supply mechanism (200) communicated with one part of each group of explosion pairing pipes (11), and a combustion gas supply mechanism (300) communicated with the other part of each group of explosion pairing pipes (11); wherein,,

the explosion chamber (100) is internally provided with a explosion venting port through a piston (14), and one end of the explosion chamber (100) is formed into a release end;

each explosion chamber (100) is respectively connected with an ignition electrode (6), and the ignition electrodes (6) are used for igniting simultaneously or in a staggered mode, so that the explosion chambers (100) detonate simultaneously or in a staggered mode and the explosion venting port is opened.

2. A multiple pulse explosion ash removal device according to claim 1, characterized in that each group of said pair of detonation tubes (11) is at least one pair, and the axes of each pair of detonation tubes (11) are on the same straight line, one of said pair of detonation tubes (11) is connected with said combustion gas supply mechanism (200), and the other is connected with said combustion gas supply mechanism (300).

3. A multiple pulse explosion ash removal device according to claim 2, characterized in that the ratio of the length of the explosive tube (11) along the axial direction to the diameter is not less than 15.

4. A multiple pulse explosion ash removal device according to any of the claims 1-3, characterized in that the axes of a plurality of said explosion chambers (100) are arranged in parallel and;

an included angle alpha is formed between the axial direction of the explosion tube (11) and the axial direction of the explosion chamber (100), and the included angle alpha is more than or equal to 90 degrees and more than or equal to 45 degrees.

5. A multiple pulse explosion ash removal device according to any of the claims 1-3, characterized in that said combustion gas supply means (200) comprises a gas collar (1) formed in a ring shape;

the combustion-supporting gas supply mechanism (300) comprises a combustion-supporting gas ring pipe (2) formed in a ring shape;

and the gas loop pipe (1) and the combustion-supporting loop pipe are respectively communicated with the explosion-pairing pipe (11) through electromagnetic valves (7).

6. A multiple pulse explosion ash removal device according to any of claims 1-3, characterised in that said explosion chambers (100) are three and that a plurality of said explosion chambers (100) are arranged in a "delta" shape in cross section.

7. A multiple pulse explosion ash removal device according to any one of claims 1-3, characterized in that the part of said explosion chamber (100) close to the release end is formed as a bell mouth structure (16), and the inside diameter of said bell mouth structure (16) increases gradually from the end far from said release end to the end close to said release end;

the flare structure (16) is located outside of one of the ends of the piston (14).

8. A multiple pulse explosion ash removal device according to claim 5, characterised in that the explosion chamber (100) comprises a centrally located central explosion chamber (29) and a peripheral explosion chamber (30) arranged circumferentially around the central explosion chamber (29).

9. A multiple pulse explosion ash removal device according to claim 8, characterized in that the number of said detonation tubes (11) connected to said central explosion chamber (29) is greater than the number of said detonation tubes (11) connected to said peripheral explosion chamber (30);

preferably, an included angle is formed between the axial direction of the peripheral explosion chamber (30) and the axial direction of the central explosion chamber (29), and the peripheral explosion chamber (30) extends obliquely outwards from one end far away from the release end to the release end.

10. A multiple pulse explosion ash removal method, characterized in that the multiple pulse explosion ash removal device according to any one of claims 1-9 is adopted, and the multiple pulse explosion ash removal method comprises the following steps:

s100, presetting detonation parameters, and introducing corresponding combustion gas or combustion-supporting gas into each pair of detonation tubes according to the preset detonation parameters;

s200, detonating each corresponding explosion chamber simultaneously or in a staggered manner according to the detonation requirement, and completing detonation ash removal.