Primary dedusting ash bin level gage sealing device

Abstract

The utility model provides a primary dedusting ash bin level gage sealing device, and relates to the technical field of level gage sealing. The material level meter comprises a material level meter mounting pipe, a first separation blade, a second separation blade and a cock, the level gage mounting pipe is horizontally arranged on the side face of the ash bin, the level gage mounting pipe and the ash bin are of an integrated structure, two grooves are formed in the inner wall of the end, extending into the ash bin, of the level gage mounting pipe and include the first groove and the second groove, the first blocking piece is arranged in the first groove, the second blocking piece is arranged in the second groove, and the level gage is a rotation-resisting level gage. A rotating rod of the rotation-resisting level gage extends into the level gage installation pipe, the cock is tightly arranged in the middle of the rotating rod in a sleeving mode, the cock is located between the first blocking piece and the second blocking piece, and the cock is in friction fit with the first blocking piece and the second blocking piece. According to the sealing device for the level gage of the primary dedusting ash bin, the level gage can be isolated from ash in the ash bin, and the service life of the level gage is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of material level meter sealing, in particular to a material level meter sealing device for a primary dust removal ash bin. Background Art

[0002] When the ash silo accumulates to a certain extent, it is necessary to remove the ash in time to avoid adverse effects on flue gas dust removal. The flue gas treatment system of a steel plant generally has a multi-stage dust removal system, which is divided into primary dust removal, secondary dust removal, etc. In order to monitor the height of ash accumulation in the dust removal silo, it is necessary to set a level meter in the silo. There are many types of level meters, which can be divided into weight level meters, ultrasonic level meters, radar level meters, microwave level meters, and rotary resistance level meters.

[0003] The dust layer in the ash bin is composed of fine and loose dust accumulation. For this type of material, a rotary paddle level meter is often used to measure it. When the rotary paddle level meter is working, the motor in the main body drives the blades to rotate continuously. When the detected material rises to the blade position, the rotation of the blades is blocked, and the resistance is transmitted to the torque detection device in the main body of the level meter. At this time, the motor power is cut off and the blades stop rotating. When the resistance to the material's descent disappears, the torque detection device is restored and the blades resume rotation. For this type of level meter to work properly, dust and moisture must be prevented from entering, which affects its normal and long-term operation. The existing sealing structure of the level meter has the problem of ash leakage, which reduces the service life of the level meter. Utility Model Content

[0004] To this end, the utility model proposes a sealing device for a primary dust removal ash bin level meter to overcome the problems existing in the prior art.

[0005] The technical solution of the utility model is as follows:

[0006] A sealing device for a primary dust removal ash bin level meter comprises a level meter mounting tube, a first baffle, a second baffle and a plug; the level meter mounting tube is horizontally arranged on the side of the ash bin, the level meter mounting tube and the ash bin are an integral structure, the end of the level meter mounting tube extending into the ash bin is provided with two grooves on the inner wall, the grooves are respectively a first groove and a second groove, the first baffle is arranged in the first groove, the second baffle is arranged in the second groove, the level meter is a rotary resistance level meter, the rotating rod of the rotary resistance level meter extends into the level meter mounting tube, the plug is tightly sleeved on the middle part of the rotating rod, the plug is located between the first baffle and the second baffle, and the plug is frictionally fitted with the first baffle and the second baffle respectively.

[0007] As a preferred embodiment, the inner diameter of the first baffle and the second baffle is larger than the diameter of the rotating rod, and the outer diameter of the plug is smaller than the inner diameter of the level meter installation tube and larger than the inner diameter of the first baffle and the second baffle. The first baffle and the plug form a first sealing surface, and the plug and the second baffle form a second sealing surface. Under multiple seals, dust cannot enter the level meter installation tube, and it is even more difficult to enter the level meter and affect its operation.

[0008] As a preferred embodiment, the first baffle and the second baffle are made of plastic, and the cock is made of rubber. The plastic and the rubber are flexible contact surfaces, which can form a good seal, and there is generally a certain negative pressure in the ash bin relative to the outside world, making it more difficult for dust to pass through.

[0009] As another preference, the first baffle and the second baffle are made of rubber, and the stopper is made of plastic.

[0010] As a preferred embodiment, the outer end of the level meter mounting tube is installed with the rotary resistance level meter by threaded fit or interference fit. The main body of the level meter is arranged outside the ash bin, and the blades extend into the interior of the ash bin. The main body of the level meter needs to be fixedly installed outside the ash bin.

[0011] The working principle and beneficial effects of the utility model are:

[0012] The utility model provides a sealing device for a primary dust removal ash bin level meter, which can isolate the level meter from the powder ash in the ash bin, thereby ensuring that the working environment of the level meter will not be polluted by the powder ash and extending the working life of the level meter. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0014] Figure 1 It is a schematic diagram of the position structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the position structure of the utility model from another perspective;

[0016] Figure 3 It is a structural schematic diagram of the utility model;

[0017] Figure 4 for Figure 3 Sectional view in the middle AA direction;

[0018] Figure 5 for Figure 4 A partial enlarged view of part B;

[0019] In the figure: 1, ash bin; 11, material level meter mounting tube; 12, first groove; 13, second groove; 2, rotary paddle material level meter; 21, rotating rod; 22, blade; 31, first baffle; 32, plug; 33, second baffle. DETAILED DESCRIPTION

[0020] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Please refer to Figures 1 to 5 As shown in the content, this embodiment provides a sealing device for a primary dust removal ash bin level meter, which includes a level meter mounting tube 11, a first baffle 31, a second baffle 33 and a plug 32; the level meter mounting tube 11 is horizontally arranged on the side of the ash bin 1, the level meter mounting tube 11 and the ash bin 1 are an integrated structure, and the end of the level meter mounting tube 11 extending into the ash bin 1 is provided with two grooves on the inner wall, the two grooves are respectively a first groove 12 and a second groove 13, the first baffle 31 is arranged in the first groove 12, and the second baffle 33 is arranged in the second groove 13, the level meter uses a rotary resistance level meter 2, the rotating rod 21 of the rotary resistance level meter 2 extends into the level meter mounting tube 11 and passes through it, the plug 32 is tightly sleeved on the middle part of the rotating rod 21, the plug 32 is located between the first baffle 31 and the second baffle 33, and the plug 32 is frictionally matched with the first baffle 31 and the second baffle 33 respectively.

[0022] Among them, the inner hole diameter of the first baffle 31 and the second baffle 33 is larger than the diameter of the rotating rod 21, the first baffle 31 and the second baffle 33 are respectively embedded in the first groove 12 and the second groove 13, and the outer diameter of the plug 32 is smaller than the inner diameter of the level meter mounting tube 11 and larger than the inner hole diameter of the first baffle 31 and the second baffle 33.

[0023] Relative rotation and friction occur between the first baffle 31, the plug 32 and the second baffle 33. In order to maintain sealing while being able to withstand mutual friction, the first baffle 31 and the second baffle 33 are made of plastic while the plug 32 is made of rubber; the first baffle 31 and the second baffle 33 are made of rubber while the plug 32 is made of plastic.

[0024] In addition, the outer end of the level meter installation tube 11 is installed with the rotary paddle level meter 2 by threaded fit or interference fit. The main body of the rotary paddle level meter 2 is arranged outside the ash bin 1, and the blade 22 extends into the interior of the ash bin. Pin holes are provided on the blade 22 and the rotating rod 21, and the blade 22 is inserted into the end of the rotating rod 21 and fixed with a pin. When installing the rotary paddle level meter 2, the blade 22 is removed and the rotating rod 21 is inserted, and then the main body of the rotary paddle level meter 2 is fixedly installed outside the ash bin 1 and the blade 22 is installed.

[0025] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. The sealing device of the primary dust removal ash bin level meter is characterized by: It includes a level meter mounting tube, a first baffle, a second baffle and a plug; the level meter mounting tube is horizontally arranged on the side of the ash bin, the level meter mounting tube and the ash bin are an integrated structure, the end of the level meter mounting tube extending into the ash bin is provided with two grooves on the inner wall, the grooves are respectively the first groove and the second groove, the first baffle is arranged in the first groove, the second baffle is arranged in the second groove, the level meter is a rotary resistance level meter, the rotating rod of the rotary resistance level meter extends into the level meter mounting tube, the plug is tightly sleeved on the middle of the rotating rod, the plug is located between the first baffle and the second baffle, and the plug is frictionally matched with the first baffle and the second baffle respectively.

2. The sealing device for the primary dust removal ash bin level meter according to claim 1 is characterized in that: The inner diameters of the first baffle and the second baffle are larger than the diameter of the rotating rod, and the outer diameter of the plug is smaller than the inner diameter of the level meter mounting tube and larger than the inner diameters of the first baffle and the second baffle.

3. The sealing device for the primary dust removal ash bin level meter according to claim 2 is characterized in that: The first baffle and the second baffle are made of plastic, and the plug is made of rubber.

4. The sealing device for the primary dust removal ash bin level meter according to claim 2 is characterized in that: The first baffle and the second baffle are made of rubber, and the plug is made of plastic.

5. The sealing device for the primary dust removal ash bin level meter according to claim 3 or 4, characterized in that: The outer end of the material level meter installation tube is installed with the rotation-impeded material level meter through threaded fit or interference fit.

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