Anti-blocking and direct-repair ash conveying device

Abstract

The utility model relates to a kind of anti-blocking, direct supplement ash conveying device, belong to ash conveying technical field, including bin pump, ash conveying pipeline, slaked lime bin, ash valve, direct ash conveying pipe and desulfurizing tower, the side of desulfurizing tower is provided with chute, the outlet end of bin pump is communicated with slaked lime bin by ash conveying pipeline, ash conveying pipeline, communicate in bin pump, for the ash of bin pump is carried out pneumatic ash conveying, the bottom of slaked lime bin is equipped with ash valve, ash valve is communicated with the chute on desulfurizing tower by pipeline, one end of direct ash conveying pipe is communicated with ash conveying pipeline, the other end is communicated with the chute on desulfurizing tower;The device is simple in structure, convenient to use, can effectively solve the problem that slaked lime bin upper ash valve fails to block and cannot be discharged, can also effectively solve the problem of no over-standard risk at outlet.

Description

Technical Field

[0001] This utility model relates to an ash conveying device, specifically an anti-clogging, direct-compensation ash conveying device. Background Technology

[0002] Quicklime, also known as calcium hydroxide, has wide applications in industry. It is a common building material and is also used as a bactericide and chemical raw material. Quicklime plays a crucial role in desulfurization. Currently, desulfurization and denitrification systems typically transport quicklime to the desulfurization tower via a conveying device. However, during normal production, blockages frequently occur in the quicklime silo, affecting normal operation and easily leading to elevated sulfur dioxide levels at the outlet, posing a risk of exceeding emission standards.

[0003] Therefore, developing an ash conveying device that can overcome the above defects has become a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide an anti-blocking and direct-supply ash conveying device. The device has a simple structure and is easy to use. It can effectively solve the problem of malfunction and blockage of the ash discharge valve in the slaked lime silo, and can also effectively solve the risk of excessive discharge at the outlet.

[0005] To solve the above technical problems, this utility model provides an anti-clogging, direct-feed ash conveying device, including a silo pump, an ash conveying pipeline, a quicklime silo, an ash discharge valve, a direct-discharge ash conveying pipe, and a desulfurization tower. An inclined chute is provided on one side of the desulfurization tower. The outlet end of the silo pump is connected to the quicklime silo through the ash conveying pipeline. The ash conveying pipeline is connected to the silo pump and is used for pneumatic ash conveying of the ash discharged by the silo pump. An ash discharge valve is provided at the bottom end of the quicklime silo. The ash discharge valve is connected to the inclined chute on the desulfurization tower through a pipeline. One end of the direct-discharge ash conveying pipe is connected to the ash conveying pipeline, and the other end is connected to the inclined chute on the desulfurization tower.

[0006] The further defined technical solution of this utility model is: Furthermore, in the aforementioned anti-blocking and direct-supply ash conveying device, an ash discharge valve is provided on the direct-discharge ash conveying pipe.

[0007] In terms of technical benefits, this utility model also provides an ash discharge valve on the direct ash discharge pipe, which can control the opening and closing of the direct ash discharge pipe and makes operation more convenient.

[0008] In the aforementioned anti-blocking and direct-feed ash conveying device, the direct-feed ash conveying pipe is inclinedly installed on the ash conveying pipeline, and the angle formed between the counterclockwise ash conveying pipeline and the direct-feed ash conveying pipe is an acute angle, preferably 30-60°.

[0009] In terms of technical effect, this utility model sets the direct discharge ash conveying pipe at an angle on the ash conveying pipe. Compared with the horizontal placement, this utility model is inclined upwards. The ash conveying direction is from the lower silo pump to the upper clean lime silo. The bottom-up direction is conducive to the ash blockage or stagnation in the ash conveying pipe being better directly entered into the direct discharge ash conveying pipe under the compressed gas of the silo pump, and the stagnation ash is better discharged. Direct replenishment is completed to prevent blockage, which is more efficient and convenient.

[0010] In the aforementioned anti-blocking and direct-supply ash conveying device, a compressed air storage tank is connected to the silo pump. The compressed air storage tank provides compressed air, which enters the ash conveying pipeline through the silo pump.

[0011] Technical effect: The silo plate of this utility model is connected to compressed air, which can promote the conveying of ash to a certain extent. However, the force of the compressed air is generally small. When used in conjunction with the direct discharge ash conveying pipe of this application, it can prevent blockage to the greatest extent and complete the direct replenishment of desulfurizing agent.

[0012] In the aforementioned anti-blocking and direct-compensation ash conveying device, fluidizing cloth is provided at the bottom of the inclined chute.

[0013] In terms of technical effect, the fluidizing cloth set in the inclined trough of this utility model plays a role in better fluidization and less clogging. Corresponding measures are taken for each place that is prone to clogging, so as to maximize the effect of preventing clogging.

[0014] The beneficial effects of this utility model are: This utility model has two paths for replenishing desulfurizing agent in the desulfurization tower. Normally, the desulfurizing agent is transported into the desulfurization tower from the ash discharge valve and pipeline of the quicklime silo. However, the ash discharge valve is prone to blockage. When blocked, the desulfurizing agent cannot be replenished, which may lead to an increase in sulfur dioxide at the outlet and a risk of exceeding the standard. At this time, the ash discharge valve on the pipeline can be closed and the ash discharge valve on the direct discharge ash conveying pipe can be opened to directly discharge the ash in the ash conveying pipe into the desulfurization tower for direct replenishment. This effectively avoids the risk of increased sulfur dioxide and also avoids the ash in the ash conveying pipe from becoming blocked and unable to be discharged.

[0015] This invention does not connect the desulfurization tower directly through a straight ash conveying pipe and pipeline, but through an inclined trough. On the one hand, the inclined trough facilitates the connection of the inclined straight ash conveying pipe, which can meet its angle requirements, and also facilitates the simultaneous connection of two desulfurizing agent replenishment pipes. At the same time, it is also convenient to install a filter screen in the inclined trough.

[0016] The technical problem to be solved by this utility model is that when the ash discharge valve of the quicklime silo malfunctions, it cannot discharge material. The ash produced by the digester can be directly fed into the Venturi section of the desulfurization tower through the direct discharge ash conveying pipe to reduce sulfur dioxide, ensuring that there is no risk of excessive sulfur dioxide at the outlet, and at the same time avoiding blockage of the ash conveying pipe. Attached Figure Description

[0017] Figure 1This is a schematic diagram of the anti-blocking and direct-compensation ash conveying device according to an embodiment of the present invention; In the diagram: 1-bin pump, 2-ash conveying pipeline, 3-lime slaked silo, 4-ash discharge valve, 5-direct ash discharge pipe, 6-desulfurization tower, 7-sloping chute. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them; the technical features involved in the various embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example 1

[0019] This embodiment provides an anti-blocking, direct-compensation ash conveying device, the structure of which is as follows: Figure 1 As shown, it includes a silo pump 1, an ash conveying pipeline 2, a quicklime silo 3, an ash discharge valve 4, a direct ash discharge pipeline 5, and a desulfurization tower 6, wherein: Specifically, a chute 7 is provided on one side of the desulfurization tower 6. A fluidizing cloth is provided at the bottom of the chute 7 to improve fluidization and prevent clogging. Corresponding measures are taken for each easily clogged area to maximize the effect of preventing clogging. The outlet end of the silo pump 1 is connected to the slaked lime silo 3 through the ash conveying pipe 2. The ash conveying pipe is connected to the silo pump for pneumatic ash conveying of the ash discharged by the silo pump. The silo pump 1 is connected to a compressed air storage tank, which provides compressed air. The compressed air enters the ash conveying pipe 2 through the silo pump 1. The compressed air connected to the silo pump can promote the ash conveying to a certain extent. However, the force of the compressed air is generally small. It is used in conjunction with the direct discharge ash conveying pipe of this application to prevent clogging to the greatest extent and to complete the direct replenishment of desulfurizing agent. The bottom end of the slaked lime silo 3 is provided with an ash discharge valve 4, which is connected to the chute 7 on the desulfurization tower 6 through a pipe. Specifically, one end of the direct ash conveying pipe 5 is connected to the ash conveying pipe 2, and the other end is connected to the inclined trough 7 on the desulfurization tower 6. The direct ash conveying pipe 5 is equipped with an ash discharge valve 4, which can control the opening and closing of the direct ash conveying pipe and make operation more convenient. When the direct ash conveying pipe 5 is installed, it is inclined on the ash conveying pipe 2. The angle formed between the ash conveying pipe 2 and the direct ash conveying pipe 5 in the counterclockwise direction is an acute angle of 30-60°. This is conducive to the ash that is blocked or stuck in the ash conveying pipe entering the direct ash conveying pipe better under the compressed gas of the silo pump, and better discharging the stuck ash, thus completing direct replenishment and preventing blockage.

[0020] In practice: During ash conveying, the ash enters the silo pump 1. The silo pump 1 conveys the ash to the quicklime silo 3 through the ash conveying pipe 2. The ash discharge valve 4 at the bottom of the quicklime silo 3 is opened to convey the ash as a desulfurizing agent to the desulfurization tower 6. When the ash discharge valve connected to the quicklime silo 3 malfunctions and cannot work, the ash discharge valve on the direct discharge ash conveying pipe 5 is opened, and the ash conveyed by the silo pump 1 is directly fed into the desulfurization tower from the ash conveying pipe 2 through the direct discharge ash conveying pipe 5 to replenish the desulfurizing agent, ensuring that the outlet sulfur dioxide does not exceed the standard risk, and also avoiding ash stagnation in the ash conveying pipe 2 and blockage.

[0021] In addition to the embodiments described above, this utility model may have other implementations. All technical solutions formed by equivalent substitution or equivalent transformation fall within the protection scope claimed by this utility model.

Claims

1. A clog-proof, direct-compensation ash conveying device, characterized in that: The system includes a silo pump (1), an ash conveying pipeline (2), a quicklime silo (3), an ash discharge valve (4), a direct discharge ash conveying pipe (5), and a desulfurization tower (6). A sloping trough (7) is provided on one side of the desulfurization tower (6). The outlet end of the silo pump (1) is connected to the quicklime silo (3) through the ash conveying pipeline (2). The bottom end of the quicklime silo (3) is provided with the ash discharge valve (4). The ash discharge valve (4) is connected to the sloping trough (7) on the desulfurization tower (6) through a pipeline. One end of the direct discharge ash conveying pipe (5) is connected to the ash conveying pipeline (2), and the other end is connected to the sloping trough (7) on the desulfurization tower (6).

2. The anti-blocking and direct-compensation ash conveying device according to claim 1, characterized in that: The ash discharge pipe (5) is equipped with an ash discharge valve (4).

3. The anti-blocking and direct-compensation ash conveying device according to claim 1, characterized in that: The straight ash conveying pipe (5) is inclined on the ash conveying pipe (2), and the angle formed between the ash conveying pipe (2) and the straight ash conveying pipe (5) in the counterclockwise direction is an acute angle.

4. The anti-blocking and direct-compensation ash conveying device according to claim 1, characterized in that: The silo pump (1) is connected to a compressed air storage tank, which provides compressed air. The compressed air enters the ash conveying pipeline (2) through the silo pump (1).

5. The anti-blocking and direct-compensation ash conveying device according to claim 1, characterized in that: The bottom of the inclined groove (7) is provided with fluidizing cloth.

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