CN216677729U

CN216677729U - Medicine crushing and scattering device for barrel of boiler denitration machine

Info

Publication number: CN216677729U
Application number: CN202220122123.2U
Authority: CN
Inventors: 张林家; 娄奇; 翟美卉; 王林; 王瑞; 李臣; 周文玲
Original assignee: ANGANG MINE CONSTRUCTION CO LTD
Current assignee: ANGANG MINE CONSTRUCTION CO LTD
Priority date: 2022-01-18
Filing date: 2022-01-18
Publication date: 2022-06-07
Anticipated expiration: 2032-01-18

Abstract

The utility model relates to a medicament crushing diffuser of a boiler denitration machine barrel, which comprises a denitration machine barrel and is characterized in that a threaded pipe hoop with an internal thread I is welded at the end part of an outlet of the denitration machine barrel, and a medicament crushing diffuser is connected to the end part of the threaded pipe hoop in a threaded manner; the powder of medicament scatters ware include muzzle body, smash the scattering column centrum and fix the cylinder lock cap, the muzzle body be reducing pipe structure, the path pipe end of muzzle body and the screw thread ferrule threaded connection of denitration machine barrel, the big footpath pipe end of smashing scattering column centrum threaded connection in the muzzle body, fixed cylinder lock cap continues threaded connection at the big footpath pipe end of muzzle body. The advantages are that: utility model has add the crushing radiator of medicament, has made solid magic bean denitration medicament striking smash and be umbelliform dispersion on the centrum of the crushing radiator of medicament in the boiler, has reduced furnace pipe damage accident and cost of maintenance, has improved the life of boiler.

Description

Medicine crushing and scattering device for barrel of boiler denitration machine

Technical Field

The utility model belongs to the technical field of machinery, and particularly relates to a medicament crushing scatterer of a barrel of a boiler denitration machine.

Background

The high-polymer denitration process of the boiler is called PNCR (pneumatic plasma enhanced chemical reduction) process for short, the PNCR refers to a solid-state high-polymer denitration technology without using a catalyst, and a solid high-polymer reduction agent is sprayed into the interior of a hearth to be sublimated and then reacts with NO_XA denitration process for generating reduction reaction to reach the emission index, wherein the reaction product in the high-molecular denitration process is H₂O、N₂、CO₂。

The Dongshan sintering plant adopts a special denitration agent independently developed by Liaoning northern environmental protection Limited company to carry out boiler denitration operation, and utilizes PTX2 denitration equipment to spray the special solid magic bean denitration agent into a denitration reaction area so as to be fully mixed with flue gas and be in contact reaction. Wherein the denitration reaction temperature range is 450-1000 ℃, and the denitration medicament and NO in the flue gas are in the optimal reaction temperature range of 750-950 DEG C_XThe reaction effect is optimal. Although the denitration process realizes environmental protection and clean production, the denitration process also has the problem of influencing the normal production in the actual production, and the denitration process specifically comprises the following steps: because the denitration agent is delivered into the equipment pipeline by utilizing the wind power of the fan, and is finally blown into the boiler from the gun barrel inserted into the boiler, the denitration agent is solid round particles, the direct injection position of the denitration agent is positioned in the hearth pipe area in the boiler, the denitration agent is hit on the hearth pipe for a long time, the hearth pipe in the boiler can be leaked in 3 to 5 days generally, the boiler is leaked, and the boiler is directly stoppedRepair not only influences the normal operation of production, but also reduces the life of boiler.

Disclosure of Invention

Aiming at the problems in the prior art, the utility model aims to provide a medicament crushing and dispersing device for a barrel of a boiler denitration machine, which is arranged at the head of the barrel of the denitration machine, so that solid medicaments are impacted into powder and dispersed in the boiler in an umbrella shape, the problem that the solid medicaments directly penetrate into a hearth pipe of the boiler is thoroughly solved, and the purposes of ensuring more sufficient denitration reaction, ensuring normal production and prolonging the service life of boiler equipment are achieved; meanwhile, the utility model is easy to process, convenient to install and adjust and long in service life.

The purpose of the utility model is realized by the following technical scheme:

the utility model discloses a medicament crushing diffuser of a boiler denitration machine barrel, which comprises a denitration machine barrel and is characterized in that a threaded pipe hoop with an internal thread I is welded at the end part of an outlet of the denitration machine barrel, and a medicament crushing diffuser is connected to the end part of the threaded pipe hoop in a threaded manner; the medicine crushing and scattering device comprises a gun nozzle body, a crushing and scattering column cone body and a fixed column locking cap, wherein the gun nozzle body is of a reducing pipe structure, an external thread I matched with an internal thread I of a threaded pipe hoop is formed at the end part of a small-diameter pipe, an internal thread II is formed at the end part of a large-diameter pipe, a plurality of through rectangular openings are formed in the wall of the large-diameter pipe of the gun nozzle body at equal intervals along the circumferential direction, an external thread II matched with the internal thread II of the large-diameter pipe is formed in the surface of the column of the crushing and scattering column cone body, and an external thread III matched with the internal thread II of the large-diameter pipe is also formed in the surface of the fixed column locking cap; the small-diameter pipe end of the gun nozzle body is in threaded connection with a threaded pipe hoop of a denitration machine gun barrel, the crushing scattering column cone is in threaded connection with the inside of a large-diameter pipe of the gun nozzle body, and the fixing cylinder locking cap is connected with the crushing scattering column cone in threaded connection with the end portion of the large-diameter pipe of the gun nozzle body.

The transparent rectangular openings are 3-5 transparent rectangular openings.

Compared with the prior art, the utility model has the advantages that:

1. according to the utility model, the special solid magic bean denitration medicament is impacted on the cone of the medicament crushing scatterer to be crushed and dispersed in the boiler in an umbrella shape by installing the medicament crushing scatterer at the head part of the gun tube of the denitration machine, so that the problem that the solid magic bean denitration medicament is directly injected into the hearth tube of the boiler when being sprayed is thoroughly solved, the accidents of shutdown maintenance and the maintenance cost caused by damage of the hearth tube are reduced, the normal production is ensured, the service life of the boiler is prolonged, and meanwhile, the medicament crushing and dispersing enable the denitration reaction to be more sufficient.

2. The components of the utility model are in threaded connection, so that the adjustment and the replacement are convenient, the internal pressure of the barrel of the denitration machine can be controlled within the range of 0.13-0.20Mpa by adjusting the height of the cone of the crushing scattering column, the overheating and scalding of the soft connection rubber tube of the fan caused by overhigh wind pressure are prevented, and the problems of maintenance labor intensity and material loss caused by equipment damage are avoided.

3. The utility model has reasonable structure and long service life.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Figure 2 is a schematic view of a threaded pipe clamp.

Fig. 3 is a schematic view of the muzzle body.

Fig. 4 is a schematic view of a comminuted scattering cylinder cone.

FIG. 5 is a schematic view of a stationary cylinder locking cap.

Detailed Description

The utility model will be further explained with reference to the drawings.

As shown in fig. 1, the chemical crushing and scattering device for the boiler denitration machine gun barrel comprises a denitration machine gun barrel 1, and is characterized in that a threaded pipe hoop 2 with internal threads I21 is welded at the end part of an outlet of the denitration machine gun barrel 1, and the end part of the threaded pipe hoop 2 is in threaded connection with the chemical crushing and scattering device; the medicine crushing and scattering device comprises a gun nozzle body 3, a crushing and scattering column cone 4 and a fixed column locking cap 5, wherein the gun nozzle body 3 is of a reducing pipe structure, the end part of a small diameter pipe is provided with an external thread I31 matched with an internal thread I21 of a threaded pipe hoop 2, the end part of a large diameter pipe is provided with an internal thread II 32, the wall of the large diameter pipe of the gun nozzle body 3 is provided with three through rectangular openings 33 at equal intervals along the circumferential direction, the surface of a column body of the crushing and scattering column cone 4 is provided with an external thread II 41 matched with the internal thread II 32 of the large diameter pipe, and the surface of the column body of the fixed column locking cap 5 is also provided with an external thread III 51 matched with the internal thread II 32 of the large diameter pipe; the small-diameter pipe end of the gun nozzle body 3 is in threaded connection with the threaded pipe hoop 2 of the denitration machine gun barrel 1, the crushing scattering column cone 4 is in threaded connection with the large-diameter pipe of the gun nozzle body 3, and the fixing column locking cap 5 is connected with the crushing scattering column cone 4 and is in threaded connection with the end portion of the large-diameter pipe of the gun nozzle body 3.

The rectangular openings of this embodiment are 3, and the opening length is 25mm and the opening width is 11 mm.

According to the utility model, the chemical crushing and scattering device is arranged at the head part of the gun tube of the denitration machine, so that the solid magic bean denitration chemical is impacted on the chemical crushing and scattering column cone body, and is crushed and dispersed in the boiler in an umbrella shape, the problem that the solid chemical directly irradiates the hearth tube of the boiler is thoroughly solved, the accidents of stopping the boiler and maintaining the boiler due to the damage of the hearth tube and the maintaining cost are reduced, the normal production is ensured, the service life of the boiler is prolonged, and meanwhile, the chemical crushing and scattering effect is more sufficient.

Because all the parts of the utility model are in threaded connection, the adjustment and the replacement are convenient, the internal pressure of the denitration machine gun barrel 1 can be controlled within the range of 0.13-0.20Mpa by adjusting the height of the crushing scattering column cone 4, the overheating and scalding of the soft connection rubber pipe of the fan caused by overhigh wind pressure are prevented, and the problems of maintenance labor intensity and material loss caused by equipment damage are avoided. The post worker can easily operate, replace and adjust only by equipping a straight screwdriver and a 10# T-shaped socket wrench.

Installation procedure of the utility model

1. Welding a threaded pipe hoop 2 on the denitration machine gun barrel 1;

2. screwing the crushed scattering column cone 4 component into the gun nozzle body 3 and adjusting the distance, screwing the fixed column locking cap 5 component, and locking the crushed scattering column cone 3 component; thus, the medicine pulverizing and dispersing device is assembled;

3. the scatterer is smashed to the medicament that will assemble and is twisted on the screw thread ferrule 2 of denitration machine barrel 1 front end, can use.

Claims

1. A chemical crushing scatterer of a boiler denitration machine gun barrel comprises a denitration machine gun barrel and is characterized in that a threaded pipe hoop with an internal thread I is welded at the end part of an outlet of the denitration machine gun barrel, and a chemical crushing scatterer is connected to the end part of the threaded pipe hoop in a threaded manner; the medicine crushing and scattering device comprises a gun nozzle body, a crushing and scattering column cone body and a fixed column locking cap, wherein the gun nozzle body is of a reducing pipe structure, an external thread I matched with an internal thread I of a threaded pipe hoop is formed at the end part of a small-diameter pipe, an internal thread II is formed at the end part of a large-diameter pipe, a plurality of through rectangular openings are formed in the wall of the large-diameter pipe of the gun nozzle body at equal intervals along the circumferential direction, an external thread II matched with the internal thread II of the large-diameter pipe is formed in the surface of the column of the crushing and scattering column cone body, and an external thread III matched with the internal thread II of the large-diameter pipe is also formed in the surface of the fixed column locking cap; the small-diameter pipe end of the gun nozzle body is in threaded connection with a threaded pipe hoop of a denitration machine gun barrel, the crushing scattering column cone is in threaded connection with the inside of a large-diameter pipe of the gun nozzle body, and the fixed cylinder locking cap is connected with the crushing scattering column cone in threaded connection with the end portion of the large-diameter pipe of the gun nozzle body.

2. The chemical crushing scatterer of the boiler denitration machine barrel of claim 1, wherein the plurality of through rectangular openings are 3-5 through rectangular openings.