CN213529733U

CN213529733U - Cleaning device for black liquor muzzle and air supply port of alkali recovery boiler

Info

Publication number: CN213529733U
Application number: CN202021869987.8U
Authority: CN
Inventors: 刘刚
Original assignee: Hainan Jinhai Pulp and Paper Co Ltd
Current assignee: Hainan Jinhai Pulp and Paper Co Ltd
Priority date: 2020-08-31
Filing date: 2020-08-31
Publication date: 2021-06-25
Anticipated expiration: 2030-08-31

Abstract

The utility model discloses a cleaning device for a black liquor muzzle and an air supply port of an alkali recovery boiler, which comprises a support, an angle adjusting device, a bracket, a telescopic device and a claw, wherein the angle adjusting device is adjustably arranged on the support; the angle adjusting device is rotatably limited on the bracket through the limiting part; one side of the bracket is provided with a locking device for locking the angle adjusting device; by arranging the telescopic device and the claw, the claw is pushed by the telescopic device to automatically clean a black liquor muzzle of the alkali recovery boiler and an air supply port of the alkali recovery boiler, and the angle of the claw is adjusted by the angle adjusting device, so that the flexibility and the efficiency of automatic cleaning are improved, and the combustion condition of the alkali recovery boiler is effectively stabilized; meanwhile, the high-pressure steam output quality, the green liquor quality and the smoke emission index of the alkali recovery boiler are stabilized, and the production quality is effectively improved.

Description

Cleaning device for black liquor muzzle and air supply port of alkali recovery boiler

Technical Field

The utility model relates to an alkali recovery boiler clearance technical field, concretely relates to alkali recovery boiler black liquor muzzle and air supply port's cleaning device.

Background

In the process of pulping by a sulfuric acid method, the combustion efficiency of black liquor in an alkali recovery boiler of a pulp mill directly influences the balance of the pharmaceutical industry circulation of the whole pulp line, influences the addition amount of purchased mirabilite, influences the important performance indexes of an alkali furnace, namely the reduction rate of the mirabilite, influences the combustion steam yield of the alkali recovery boiler and influences the emission index of combustion flue gas of the alkali recovery boiler. Therefore, the combustion efficiency of the black liquor in the alkali recovery boiler is not only related to the combustion air ratio of the alkali recovery boiler, but also greatly influenced by the size and uniformity of the black liquor spray gun combustion particles and the accumulated amount of the gun mouth, and also greatly influenced by the cleaning degree of each air supply system air port.

At present, the cleaning of a black liquor muzzle of a common alkali recovery boiler and the cleaning of an air supply port of the alkali recovery boiler are both manual cleaning, the manual cleaning mode has high fluctuation, and is also influenced by low manual cleaning frequency and non-uniform cleaning effect, so that the combustion condition of the alkali recovery boiler greatly fluctuates, and taking a certain domestic large alkali furnace as an example, under the condition that other conditions are not changed, the fluctuation of the steam production of the alkali recovery boiler before and after manual cleaning can only reach 30T/H. And manual cleaning still has very big potential safety hazard, and in case the black liquor rifle drops or alkali recovery boiler jumps off unusually, the clearance personnel are very easily receive black liquor high temperature, the harm of alkali is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the weak point that exists in the above-mentioned technique, provide a cleaning device in alkali recovery boiler black liquor muzzle and air feed mouth, aim at solving above-mentioned alkali recovery boiler black liquor muzzle and air feed mouth and need artifical clearance, the problem of inefficiency and threat workman's production safety.

The utility model provides a cleaning device for a black liquor muzzle and an air supply port of an alkali recovery boiler, which comprises a support, an angle adjusting device, a bracket, a telescopic device and a claw, wherein the angle adjusting device is adjustably arranged on the support; the angle adjusting device is rotatably limited on the bracket through the limiting part; and a locking device used for locking the angle adjusting device is arranged on one side of the support.

Furthermore, the angle adjusting device comprises an arc-shaped plate, a gear and a rotating rod, the arc-shaped plate is rotatably limited on the bracket through the limiting part, the gear is rotatably arranged on the bracket, and the rotating rod is connected with the gear; the arc-shaped plate is provided with an arc-shaped adjusting hole, one side of the arc-shaped adjusting hole is provided with a plurality of teeth, the gear is located in the arc-shaped adjusting hole, and the gear is in meshing transmission with the teeth.

Furthermore, arc-shaped limiting holes are further formed in two sides of the arc-shaped plate, and the limiting part is of a rod-shaped structure with a limiting part at the end part, so that the arc-shaped plate is limited on the support.

Further, the telescoping device includes cylinder and push rod, the cylinder is located the one end of bracket, the push rod connect in the output of cylinder, the push rod passes the bracket with the claw is connected.

Furthermore, the locking device comprises a limiting ring and a locking bolt, the limiting ring is arranged on one side of the bracket, and the locking bolt is rotatably arranged on one side of the limiting ring; one end of the rotating rod is provided with a limiting block, the limiting block is located in the limiting ring, and the locking bolt is in rotary butt joint with the limiting ring.

Furthermore, a support plate is arranged on the support, and an observation window is arranged at the upper end of the support plate, which is positioned at the upper end of the push rod.

Furthermore, the support plate is provided with a rectangular hole, the bracket can be movably arranged in the rectangular hole, and the length of the rectangular hole is larger than the diameter of the bracket.

Compared with the prior art, the method has the following beneficial effects:

the utility model provides a cleaning device for a black liquor muzzle and an air supply port of an alkali recovery boiler, which is provided with a telescopic device and a claw, so that the claw is pushed by the telescopic device to automatically clean the black liquor muzzle and the air supply port of the alkali recovery boiler, and the angle of the claw is adjusted by an angle adjusting device, thereby improving the flexibility and the efficiency of automatic cleaning; the automatic cleaning is adopted to replace manual cleaning, the cleaning interval time is far shorter than the manual cleaning interval time, and the optimal black liquor jet combustion maintaining time is prolonged due to the short cleaning interval time, so that the combustion condition of the alkali recovery boiler is greatly stabilized; meanwhile, the high-pressure steam output quality, the green liquor quality and the smoke emission index of the alkali recovery boiler are stabilized, and the production quality is effectively improved. In addition, manual cleaning is replaced by automatic cleaning, and the production safety of personnel is effectively guaranteed.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only preferred embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive effort.

FIG. 1 is a schematic view of a cleaning device for a black liquor muzzle and an air supply port of an alkali recovery boiler according to the present invention;

FIG. 2 is an axial view of the cleaning device for the black liquor muzzle and the air supply port of the alkali recovery boiler of the present invention;

FIG. 3 is an enlarged schematic view of part A of a cleaning device for a black liquor muzzle and an air supply port of an alkali recovery boiler according to the present invention;

FIG. 4 is a schematic diagram of the enlarged part B of the cleaning device for the black liquor muzzle and the air supply port of the alkali recovery boiler of the present invention.

In the figures, 1-stent; 2-an angle adjustment device; 3-a bracket; 4-a telescopic device; 5-paw; 6-locking means; 7-a stop member; 11-a support plate; 12-a viewing window; 13-a rectangular hole; 21-an arc-shaped plate; 22-gear; 23-a rotating rod; 24-a stopper; 25-a turning handle; 41-cylinder; 42-a push rod; 61-a limit ring; 62-a locking bolt; 211-arc adjustment holes; 212-arc shaped limiting holes; 213-teeth.

Detailed Description

In order to make the structure and features and advantages of the present invention easier to understand, preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings:

example 1:

as shown in fig. 1 to 4, the utility model provides a cleaning device for a black liquor muzzle and an air supply port of an alkali recovery boiler, which comprises a support 1, an angle adjusting device 2, a bracket 3, a telescopic device 4 and a claw 5, wherein the angle adjusting device 2 is adjustably arranged on the support 1, the bracket 3 is connected on the angle adjusting device 2, the telescopic device 4 is arranged on the bracket 3, the claw 5 is arranged at the end part of the telescopic device 4, so that the angle between the bracket 3 and the support 1 can be adjusted through the angle adjusting device 2, and the angle between the telescopic device 4 and the support 1 can be adjusted, so that the claw 5 can adjust the angle along with the telescopic device 4, thereby being suitable for cleaning at different positions; the angle adjusting device 2 can be rotatably limited on the bracket 1 through the limiting part 7, so that the angle adjusting device 2 is limited on the bracket 1, and the angle adjusting device 2 can conveniently rotate on the bracket 1 to adjust the angle of the telescopic device 4; a locking device 6 for locking the angle adjusting device 2 is arranged on one side of the bracket 1 so as to position and lock the telescopic device 4 after the angle is adjusted, so that the claw 5 can perform telescopic motion in a fixed direction; by adopting the technical scheme, the telescopic device 4 and the claw 5 are arranged, so that the claw 5 is pushed by the telescopic device 4 to automatically clean a black liquor muzzle of the alkali recovery boiler and an air supply port of the alkali recovery boiler, and the angle of the claw 5 is adjusted by the angle adjusting device 2, so that the flexibility and the efficiency of automatic cleaning are improved; the automatic cleaning is adopted to replace manual cleaning, the cleaning interval time is far shorter than the manual cleaning interval time, and the optimal black liquor jet combustion maintaining time is prolonged due to the short cleaning interval time, so that the combustion condition of the alkali recovery boiler is greatly stabilized; meanwhile, the high-pressure steam output quality, the green liquor quality and the smoke emission index of the alkali recovery boiler are stabilized, and the production quality is effectively improved. In addition, manual cleaning is replaced by automatic cleaning, and the production safety of personnel is effectively guaranteed.

Specifically, the angle adjusting device 2 comprises an arc plate 21, a gear 22 and a rotating rod 23, the arc plate 21 is rotatably limited on the bracket 1 through a limiting part 7, the gear 22 is rotatably arranged on the bracket 1, and the rotating rod 23 is connected with the gear 22; the rotating rod 23 is connected to the bracket 1 through a bearing, so that the gear 22 can be rotatably arranged on the bracket 1; be equipped with arc regulation hole 211 on the arc 21, one side of arc regulation hole 211 is equipped with a plurality of teeth 213, and gear 22 is located arc regulation hole 211, and gear 22 meshes the transmission with teeth 213 to drive teeth 213 through rotating gear 22 and rotate, thereby make arc regulation hole 211 rotate, in order to carry out angle modulation to arc 21.

Example 2:

as shown in fig. 1 to 4, in combination with the technical solution of embodiment 1, in this embodiment, arc-shaped limiting holes 212 are further formed on two sides of the arc-shaped plate 21, and the limiting component 7 is a rod-shaped structure with a limiting portion at an end portion thereof, so as to limit the arc-shaped plate 21 on the bracket 1, and enable the arc-shaped plate 21 to be tightly attached to the bracket 1 for rotation through the limiting portion; the arc plate 21 is limited on the bracket 1 by the limiting part 7, so that the gear 22 rotates to drive the teeth 213 of the arc adjusting hole 211 to rotate, and the arc plate 21 rotates in the limiting part 7.

Specifically, telescoping device 4 includes cylinder 41 and push rod 42, and the one end of bracket 3 is located to cylinder 41, and push rod 42 is connected in the output of cylinder 41, and push rod 42 passes bracket 3 and is connected with claw 5 to carry out spacing support to push rod 42 through bracket 3, thereby make cylinder 41 can promote claw 5 of push rod 42 tip to carry out linear telescopic motion, in order to carry out automatic clearance to alkali recovery boiler black liquor muzzle clearance and alkali recovery boiler air feed mouth.

Specifically, the locking device 6 comprises a limiting ring 61 and a locking bolt 62, the limiting ring 61 is arranged on one side of the bracket 1, and the locking bolt 62 is rotatably arranged on one side of the limiting ring 61; one end of the rotating rod 23 is provided with a limiting block 24, the limiting block 24 is positioned in the limiting ring 61, and the locking bolt 62 is rotatably abutted against the limiting ring 61 so as to rotate the locking bolt 62 to abut and lock the limiting ring 61 and rotate the locking bolt 62 in the opposite direction to separate from the limiting ring 61 for unlocking; the rotating rod 23 is also provided with a rotating handle 25, so that the rotating rod 23 is rotated through the rotating handle 25, and the rotating handle 25 controls the rotation of the gear 22.

Example 3:

as shown in fig. 1 and fig. 2, in combination with the technical solution of embodiment 2, in this embodiment, a support plate 11 is disposed on the bracket 1, and an observation window 12 is disposed on the support plate 11 at the upper end of the push rod 42 to observe the working state of the claw 5 and adjust the position of the claw 5 through the observation window 12.

Specifically, the support plate 11 is provided with a rectangular hole 13, the bracket 3 can be movably located in the rectangular hole 13, and the length of the rectangular hole 13 is greater than the diameter of the bracket 3, so that the arc plate 21 drives the bracket 3 to rotate in the rotating process to adjust the angle, and meanwhile, the claw 5 does not interfere with the support plate 11.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention in any way. The technical solution of the present invention can be used by anyone skilled in the art to make many possible variations and modifications to the technical solution of the present invention without departing from the scope of the technical solution of the present invention, or to modify equivalent embodiments with equivalent variations. Therefore, any modification, equivalent change and modification of the above embodiments according to the present invention are all within the protection scope of the present invention.

Claims

1. The cleaning device for the black liquor muzzle and the air supply port of the alkali recovery boiler is characterized by comprising a support (1), an angle adjusting device (2), a bracket (3), a telescopic device (4) and a claw (5), wherein the angle adjusting device (2) is adjustably arranged on the support (1), the bracket (3) is connected to the angle adjusting device (2), the telescopic device (4) is arranged on the bracket (3), and the claw (5) is arranged at the end part of the telescopic device (4); the angle adjusting device (2) is rotatably limited on the bracket (1) through the limiting part (7); and a locking device (6) used for locking the angle adjusting device (2) is arranged on one side of the support (1).

2. The cleaning device for the black liquor muzzle and the air supply opening of the alkali recovery boiler according to claim 1, wherein the angle adjusting device (2) comprises an arc-shaped plate (21), a gear (22) and a rotating rod (23), the arc-shaped plate (21) is rotatably limited on the bracket (1) through the limiting component (7), the gear (22) is rotatably arranged on the bracket (1), and the rotating rod (23) is connected with the gear (22); be equipped with arc regulation hole (211) on arc (21), one side of arc regulation hole (211) is equipped with a plurality of teeth (213), gear (22) are located in arc regulation hole (211), gear (22) with tooth (213) carry out the meshing transmission.

3. The cleaning device for the black liquor muzzle and the air supply opening of the alkali recovery boiler according to claim 2, wherein the arc-shaped plates (21) are further provided with arc-shaped limiting holes (212) at two sides, and the limiting part (7) is a rod-shaped structure with a limiting part at the end part so as to limit the arc-shaped plates (21) on the bracket (1).

4. The cleaning device for the black liquor muzzle and the air supply opening of the alkali recovery boiler according to claim 3, wherein the telescopic device (4) comprises a cylinder (41) and a push rod (42), the cylinder (41) is arranged at one end of the bracket (3), the push rod (42) is connected to the output end of the cylinder (41), and the push rod (42) penetrates through the bracket (3) to be connected with the claw (5).

5. The cleaning device for the black liquor muzzle and the air supply port of the alkali recovery boiler according to claim 4, wherein the locking device (6) comprises a limiting ring (61) and a locking bolt (62), the limiting ring (61) is arranged on one side of the bracket (1), and the locking bolt (62) is rotatably arranged on one side of the limiting ring (61); one end of the rotating rod (23) is provided with a limiting block (24), the limiting block (24) is located in the limiting ring (61), and the locking bolt (62) is in rotary abutting connection with the limiting ring (61).

6. The cleaning device for the black liquor muzzle and the air supply opening of the alkali recovery boiler according to claim 4 or 5, characterized in that a support plate (11) is arranged on the support (1), and the support plate (11) is provided with an observation window (12) at the upper end of the push rod (42).

7. The alkali recovery boiler black liquor muzzle and air supply port cleaning device according to claim 6, wherein the support plate (11) is provided with rectangular holes (13), the bracket (3) is movably located in the rectangular holes (13), and the length of the rectangular holes (13) is larger than the diameter of the bracket (3).