Emergency ash discharging device for dust remover

Abstract

The utility model belongs to the technical field of pneumatic ash conveying auxiliary devices, and particularly discloses an emergency ash discharging device for a dust remover, which comprises a pipeline I, the pipeline I is communicated with an ash hopper, a gate valve I is arranged on the pipeline I, the top of the ash hopper is communicated with the dust remover, an ash outlet end of the ash hopper is communicated with a pipeline II, and the other end of the pipeline II is communicated with an ash bin. And a gate valve II is arranged at the joint of the pipeline II and the ash bin. A pneumatic ash conveying system cannot continuously convey ash due to blockage of an ash outlet end of an ash hopper for an existing dust remover. According to the pneumatic ash conveying system, one side of the ash outlet end of the ash hopper which is easy to block is communicated with the pipeline I which extends downwards in an inclined mode, when the pneumatic ash conveying system cannot operate normally, the gate valve II is closed, the gate valve I is opened, dust accumulated in the ash hopper is gradually discharged along the pipeline I under the action of gravity, and most accumulated dust in the ash hopper is discharged; and when the internal pressure of the ash conveying pipeline returns to normal, the operator restarts the pneumatic ash conveying system, and the pneumatic ash conveying system continues to convey ash normally.

Description

Technical Field

[0001] The utility model relates to the technical field of pneumatic ash conveying auxiliary devices, in particular to an emergency ash discharge device for a dust collector. Background Art

[0002] The production of calcium carbide generates a large amount of dust. Therefore, installing and using dust removal equipment is one of the key measures for environmental protection and safe production in calcium carbide plants. Today, calcium carbide plants generally use a series of dust removal equipment and processes to form a pneumatic dust conveying system dominated by dust collectors to handle the dust and accumulated dust generated during the production process.

[0003] Improvements and innovations to dust removal equipment have been made in the prior art, such as patent application number CN201920216081.7 and publication number CN210682464U. This patent describes an improved pneumatic ash conveying system for a bag-type dust collector. The basic principle is as follows: it includes a bag-type dust collector with four ash hoppers sealed below it; the bottom of each ash hopper is connected to an ash conveying silo pump via a straight pipe; the ash conveying silo pumps are connected in series via pipes; the ash conveying silo pump input at the head end is connected to a nitrogen pipe; the nitrogen pipe is connected to a nitrogen source; a pneumatic switch valve is installed on the nitrogen pipe; the ash conveying silo pump output at the tail end is connected to an ash discharge pipe; and the ash discharge pipe is equipped with a pneumatic discharge valve and a manual anti-blocking valve. By introducing nitrogen into the nitrogen pipe, a control system controls the pneumatic switch valve, ash conveying silo pump, and pneumatic discharge valve to achieve pneumatic ash conveying.

[0004] However, the ash conveying system in the above patent has certain shortcomings and deficiencies. The pneumatic ash conveying system uses the negative pressure generated by the operation of the dust removal fan to suck the dust into the dust collector. The dust processed by the dust collector is then passed through the ash hopper, ash bin and numerous ash conveying pipelines to realize pneumatic ash conveying. Because the material yard used for limestone production is an open-air site, the surface of the limestone washed by rainwater will adhere to a certain amount of moisture. The conveyed dust is the dust generated during the lime production loading process, and the dust at this time will also be mixed with a certain amount of moisture and sticky matter. This part of the dust is continuously When flowing through the ash conveying pipeline, it is easy to stick to the inner wall of the pipeline. Over time, the pneumatic ash conveying pipeline will be blocked. The blockage is generally more serious at the ash outlet end of the ash bin. When the ash outlet end of the ash hopper is blocked, the dust inside the ash hopper will continue to accumulate over time. When the dust inside the ash hopper accumulates to a certain level, it will cause large-scale blockage at the ash hopper. At this time, the pressure detection equipment will detect that the internal pressure of the ash conveying pipeline is too high, and then the operator will suspend the pneumatic ash conveying system, and the pneumatic ash conveying system will not be able to continue the ash conveying work. Utility Model Content

[0005] The purpose of the utility model is to provide an emergency ash discharge device for a dust collector, so as to solve the problem in the above patent that the ash outlet end of the ash hopper is blocked, which will cause the pneumatic ash conveying system to be unable to continue conveying ash.

[0006] To achieve the above-mentioned purpose, the basic solution provided by the utility model is: an emergency ash discharge device for a dust collector, including pipe one, pipe one is connected to the ash hopper, pipe one is provided with a gate valve one, the top of the ash hopper is connected to the dust collector, the ash outlet end of the ash hopper is connected to pipe two, the other end of the pipe two is connected to the ash bin, and a gate valve two is provided at the connection between pipe two and the ash bin.

[0007] The principle and beneficial effect of the present invention are as follows: by connecting a pipe 1 that fits the side of the ash hopper and extends obliquely downward to one side of the ash outlet end of the ash hopper that is prone to blockage, when the ash outlet end of the ash hopper is blocked, causing large-scale dust accumulation inside the ash hopper, resulting in the pneumatic ash conveying system being unable to operate normally, the operator will close the plug valve 2 and open the plug valve 1, allowing the dust accumulated in the ash hopper to be gradually discharged along the pipe 1 by gravity. It is worth mentioning that the diameter of the pipe 1 is larger than the diameter of the original ash conveying pipe 2. As time goes by, the accumulated dust in the ash hopper is gradually discharged until most of the accumulated dust in the ash hopper is discharged, and the internal pressure of the ash conveying pipeline returns to normal. At this time, the operator will reopen the pneumatic ash conveying system, and the pneumatic ash conveying system can continue to convey ash normally.

[0008] Option 2, which is the preferred option of the basic option, also includes a dust removal main pipe, which is connected to pipe 1, and one end of the dust removal main pipe is connected to a dust collection vehicle. The number of emergency dust removal devices for the dust collector described in this patent is three, and they are respectively arranged on the ash hoppers connected to the bottom of the series-connected dust collectors. Pipe 1 in the emergency dust removal device of each dust collector is connected to the dust removal main pipe. The dust collection vehicle sucks out all the dust that falls into the dust removal main pipe from each pipe 1, making it easy to remove the dust accumulated in the dust removal main pipe after the emergency dust discharge.

[0009] Option 3, which is the preferred option of Option 2, is to place the end of the dust collection main pipe connected to the dust collection vehicle lower than the end away from the dust collection vehicle. By setting the dust collection main pipe lower on the left and higher on the right, it is easy to prevent dust from flowing back.

[0010] Option 4, a preferred option of Option 3, has a butterfly valve installed at the end of the dust collection main pipe near the dust collection vehicle. This butterfly valve allows for easy control of the air flow rate in the dust collection main pipe during the dust collection process by adjusting the opening of the butterfly valve, thus preventing excessive dust from leaking out of the connection between the dust collection main pipe and the dust collection vehicle due to excessive air flow in the dust collection main pipe.

[0011] Option 5 is the preferred option of Option 2. The angle between Pipe 1 and Pipe 2 is an acute angle. By setting Pipe 1 as a channel with a certain inclination angle, the ash discharge effect of Pipe 1 is better and more efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural diagram of an emergency dust removal device for a dust collector;

[0013] Figure 2 This is a left view of an emergency dust removal device for a dust collector. DETAILED DESCRIPTION

[0014] The present invention is further described in detail below through specific implementation methods:

[0015] The reference numerals in the drawings of the specification include: pipeline 1, ash hopper 2, gate valve 1 3, dust collector 4, pipeline 2 5, ash bin 6, gate valve 2 7, dust removal main pipe 8, dust collection vehicle 9, butterfly valve 10.

[0016] Example

[0017] like Figure 1 and Figure 2 As shown: An emergency ash discharge device for a dust collector includes a pipe 1, which is connected to an ash hopper 2. A gate valve 3 is provided on the pipe 1. The top of the ash hopper 2 is connected to a dust collector 4. The ash outlet end of the ash hopper 2 is connected to a pipe 2 5. The other end of the pipe 2 5 is connected to an ash bin 6. A gate valve 2 7 is provided at the connection between the pipe 2 5 and the ash bin 6. The angle between the pipe 1 and the pipe 2 5 is an acute angle.

[0018] It also includes a dust removal main pipe 8, which is connected to pipe 1. One end of the dust removal main pipe 8 is connected to a dust collection vehicle 9. The end of the dust removal main pipe 8 connected to the dust collection vehicle 9 is lower than the end away from the dust collection vehicle 9. A butterfly valve 10 is provided at the end of the dust removal main pipe 8 close to the dust collection vehicle 9.

[0019] The implementation method of this embodiment is as follows:

[0020] When the pneumatic ash conveying system can no longer convey ash, first close the second gate valve 7, then open the gate valve 1 3, and the accumulated ash in the ash hopper 2 gradually falls under the action of gravity until it falls into the dust removal main pipe 8. When the accumulated ash in the three ash hoppers 2 falls into the dust removal main pipe 8, adjust the opening of the butterfly valve 10 to an appropriate size, and then start the dust collection vehicle 9 to suck out the dust in the dust removal main pipe 8.

[0021] The above is only an embodiment of the present invention, and the commonly known specific structures and characteristics of the scheme are not described in detail here. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the structure of the present invention, and these should also be regarded as the scope of protection of the present invention. These will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection claimed by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. An emergency dust removal device for a dust collector, characterized in that: The utility model comprises a pipe (1), wherein the pipe (1) is connected to an ash hopper (2), a gate valve (3) is provided on the pipe (1), the top of the ash hopper (2) is connected to a dust collector (4), the ash outlet end of the ash hopper (2) is connected to a pipe (5), the other end of the pipe (5) is connected to an ash bin (6), and a gate valve (7) is provided at the connection between the pipe (5) and the ash bin (6).

2. The emergency dust removal device for a dust collector according to claim 1, characterized in that: It also includes a dust removal main pipe (8), which is connected to the pipeline (1), and one end of the dust removal main pipe (8) is connected to a dust collection vehicle (9).

3. The emergency dust removal device for a dust collector according to claim 2, characterized in that: The end of the dust removal main pipe (8) connected to the dust collection vehicle (9) is lower than the end away from the dust collection vehicle (9).

4. The emergency dust removal device for a dust collector according to claim 3, characterized in that: A butterfly valve (10) is provided at one end of the dust removal main pipe (8) close to the dust collection vehicle (9).

5. The emergency dust removal device for a dust collector according to claim 2, characterized in that: The angle between the first pipe (1) and the second pipe (5) is an acute angle.

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