Diaphragm type ash removal device and automatic ash removal system thereof

Abstract

The utility model relates to an ash removal device, in particular to a diaphragm type ash removal device and an automatic ash removal system thereof. The utility model relates to a diaphragm type dust cleaning device, which comprises a base, a diaphragm and a dust collector, the air inlet pipe is arranged on the base; the sealing membrane is arranged on the sealing disc; the sealing seat is arranged at the end part of the air inlet pipe and is used for tightly pressing the sealing diaphragm on the sealing disc, and a plurality of air outlet holes communicated with the air inlet pipe are formed in the sealing seat; and the vibrating diaphragm is arranged at the top of the sealing seat and is provided with a sealing ring, the sealing ring is tightly pressed on the sealing diaphragm, the vibrating diaphragm and the sealing diaphragm form a sealing cavity, and the sealing cavity is communicated with the air outlet hole. According to the diaphragm type ash cleaning device, ash is vibrated to be crisp through vibration, compressed air is used for blowing and sweeping in a blasting mode, an ash layer which is vibrated to be crisp can be forcefully blown away, cleaning of the ash layer is achieved, and the diaphragm type ash cleaning device is free of damage to an ash hopper.

Description

Technical Field

[0001] The utility model relates to a dust cleaning device, in particular to a diaphragm type dust cleaning device and an automatic dust cleaning system thereof. Background Art

[0002] During the process of cooling the flue gas in the quench tower of the hazardous waste incineration industry, especially when the quench spray gun sprays back high-concentration brine, even if a salt inhibitor is used, a ash layer will still form on the surface of the refractory material in the ash hopper of the quench tower. Although this ash layer is loose (it can be crushed by gently squeezing with hand), it has no fluidity and cannot fall off without external force. It accumulates thicker and thicker, resulting in the blockage of the ash hopper. Generally, it is necessary to stop the machine for dust cleaning after continuous operation for 1 - 3 months. Each shutdown will cause losses of 80,000 - 100,000 yuan, and the continuous production is interrupted.

[0003] To solve this problem, most enterprises open hand holes on the outside of the ash hopper and use a stick to knock the ash layer through the hand hole to make it fall off. This method has the following disadvantages: 1) Difficult operation and labor-consuming; 2) Leading to air leakage in the system, local condensation of flue gas in the quench tower and dry desulfurization tower, corroding the equipment; 3) Affecting the operation stability; 4) Too many cleaning dead corners and incomplete cleaning. There are also some enterprises that install vibrators on the outside of the ash hopper. This method has been phased out. The external vibrator has too large a vibration amplitude, which will cause the refractory material of the ash hopper to fall off, resulting in huge losses. Content of the Utility Model

[0004] To solve the problem that the ash layer is not easy to clean, the utility model provides a diaphragm type dust cleaning device, and the specific technical solution is as follows:

[0005] A diaphragm type dust cleaning device includes: a base, on the top of which a sealing disc is provided; an air inlet pipe provided on the base; a sealing diaphragm provided on the sealing disc; a sealing seat provided at the end of the air inlet pipe and pressing the sealing diaphragm on the sealing disc, and a plurality of air outlet holes communicating with the air inlet pipe are provided on the sealing seat; and a vibration diaphragm with elasticity is provided on the top of the sealing seat and is provided with a sealing ring, the sealing ring presses on the sealing diaphragm, and a sealing cavity is formed between the vibration diaphragm and the sealing diaphragm, and the sealing cavity communicates with the air outlet holes.

[0006] Preferably, the vibration diaphragm is bowl-shaped.

[0007] Preferably, it further includes: a flow valve provided on the air inlet pipe.

[0008] An automatic dust cleaning system includes: the above-mentioned diaphragm type dust cleaning device, the base is fixed on the ash hopper, and the vibration diaphragm is located inside the ash hopper; and an air supply pipe provided outside the ash hopper and connected to the air inlet pipe.

[0009] Compared with the prior art, the utility model has the following beneficial effects:

[0010] A diaphragm type dust cleaning device provided by the utility model shakes the ash loose through vibration, and enables compressed air to be purged by means of blasting, which can strongly blow and disperse the shaken loose ash layer, realize the cleaning of the ash layer, and cause no damage to the ash hopper. Brief Description of the Drawings

[0011] Figure 1 is a schematic structural diagram of Embodiment 1;

[0012] Figure 2 is a top view of Embodiment 1;

[0013] Figure 3 is a schematic structural diagram of Embodiment 2;

[0014] Figure 4 is a schematic diagram without vibration;

[0015] Figure 5 is a schematic diagram of vibration dust cleaning. Detailed Embodiment

[0016] The present utility model will be further described in conjunction with the accompanying drawings.

[0017] Embodiment 1

[0018] As shown in Figure 1 and Figure 2 , a diaphragm type dust cleaning device includes a base 2, an air inlet pipe 1, a sealing diaphragm 4, a sealing seat 3 and a vibrating diaphragm 5. A sealing disc 21 is provided at the top of the base 2, which is in a T shape. The base 2 is used to be fixed on the ash hopper 6, and the sealing disc 21 is used to abut against the inner wall of the ash hopper 6. A through hole is provided at the center of the base 2, and the air inlet pipe 1 is installed in the through hole. Both ends of the air inlet pipe 1 are provided with threads. The top is connected to the sealing seat 3 through threads, and the bottom is connected to an air pipe joint through threads. The air pipe joint is connected to an air supply pipe 7 through a hose, and the air supply pipe 7 is connected to a compressed air pumping station. The top of the sealing seat 3 is fixedly connected to the vibrating diaphragm 5. Four air outlet holes 31 are annularly arranged on the outer circumferential surface of the sealing seat 3, and the air outlet holes 31 communicate with the air inlet pipe 1. The sealing diaphragm 4 is made of rubber and is used for sealing. The sealing diaphragm 4 is installed on the sealing disc 21 and is located at the bottom of the sealing seat 3. The sealing diaphragm 4 is inserted on the air inlet pipe 1 and is pressed against the sealing disc 21 by the sealing seat 3. The vibrating diaphragm 5 can be formed by stamping a stainless steel thin plate. A sealing ring 51 matching the sealing diaphragm 4 is provided around the vibrating diaphragm 5. The vibrating diaphragm 5 is in a bowl shape as a whole, and the sealing ring 51 presses against the sealing diaphragm 4. The vibrating diaphragm 5 and the sealing diaphragm 4 form a sealing cavity 50, and the sealing cavity 50 communicates with the air outlet holes 31.

[0019] The diaphragm 5 is stamped from a thin stainless steel sheet with high elasticity. The diaphragm 5 is a corrugated bowl shape, with excellent axial elasticity, so that the sealing cavity 50 formed by the diaphragm 5 and the sealing membrane 4 has a large deformation margin.

[0020] By adjusting the intake air volume, the vibration frequency of the diaphragm 5 can be adjusted to be close to the natural frequency of the ash layer 8, improving the ash cleaning effect. Therefore, a flow valve can be installed on the intake pipe 1.

[0021] Such as Figure 4 and Figure 5 As shown in the figure, the working principle is as follows: The diaphragm 5 and the sealing membrane 4 form an elastic sealing cavity 50. When compressed air is introduced, as the pressure increases, the pressure in the sealing cavity 50 gradually increases. When the pressure in the sealing cavity 50 exceeds the pressure at which the diaphragm 5 presses tightly on the sealing membrane 4, the sealing ring 51 tilts upward and separates from the sealing membrane 4, forming an air outlet gap. The compressed air rushes out of the sealing cavity 50 in a bursting form, the air pressure inside the sealing cavity 50 decreases, the diaphragm 5 resets, the sealing ring 51 presses tightly on the sealing membrane 4 to seal the sealing cavity 50, then the air pressure increases, the sealing ring 51 continues to open and close, forming a periodic motion, and then forming a periodic vibration. The vibration loosens and breaks the ash layer 8, making the ash layer 8 fluid. At the same time, the compressed air forms a purging effect, strongly blowing away the ash layer 8, ensuring the ash cleaning effect, eliminating the need for manual ash cleaning, enabling continuous ash cleaning, thorough ash cleaning, realizing continuous production, reducing costs, and improving efficiency.

[0022] Embodiment 2

[0023] Such as Figures 3 to 5 As shown in the figure, an automatic ash cleaning system includes: a plurality of diaphragm-type ash cleaning devices and a supply air pipe 7. The diaphragm-type ash cleaning devices are arranged in a circular array on the ash hopper 6 and are fixed on the ash hopper 6 through a base 2. The diaphragm 5 is located inside the ash hopper 6; the supply air pipe 7 is fixed outside the ash hopper 6 and is connected to the intake pipe 1. The supply air pipe 7 is also connected to a compressed air pumping station. Compressed air enters the sealing cavity 50 through the supply air pipe 7 and the intake pipe 1.

[0024] A flow valve can be installed on the supply air pipe 7 to adjust the flow rate of the compressed air, realizing overall control, making the control simpler, and being able to reduce the usage amount of the flow valve and lower costs.

[0025] This system can achieve full-automatic control, with good effect, no need for manual labor, full-automatic control, thorough ash cleaning, and continuous production can be realized.

[0026] The technical principle of the present invention is described above in combination with specific embodiments. These descriptions are only for explaining the principle of the present invention and cannot be interpreted as limiting the protection scope of the present invention in any way. Based on the explanations here, technicians in this field can think of other specific implementation methods of the present invention without creative work, and these methods will fall within the protection scope of the claims of the present invention.

Claims

1. A diaphragm type dust cleaning device, characterized in that, Comprising: A base (2), on the top of which there is a sealing disc (21); An air inlet pipe (1), provided on the base (2); A sealing diaphragm (4), provided on the sealing disc (21); and A sealing seat (3), provided at the end of the air inlet pipe (1) and pressing the sealing diaphragm (4) against the sealing disc (21), and there are a number of air outlet holes (31) on the sealing seat (3) that communicate with the air inlet pipe (1); A specific elastic vibrating diaphragm (5), provided on the top of the sealing seat (3) and having a sealing ring (51), the sealing ring (51) pressing against the sealing diaphragm (4), and a sealing cavity (50) is formed between the vibrating diaphragm (5) and the sealing diaphragm (4), and the sealing cavity (50) communicates with the air outlet holes (31).

2. The diaphragm type dust cleaning device according to claim 1, wherein The vibrating diaphragm (5) is bowl-shaped.

3. The diaphragm type dust cleaning device according to claim 1, wherein, Further comprising: A flow valve, provided on the air inlet pipe (1).

4. An automatic dust cleaning system, characterized in that, Comprising: A number of diaphragm type dust cleaning devices as described in claim 1, the base (2) being fixed on a dust hopper (6), and the vibrating diaphragm (5) being located inside the dust hopper (6); and An air supply pipe (7), provided outside the dust hopper (6) and connected to the air inlet pipe (1).

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