Particulate matter cleaning device

Abstract

The utility model discloses a particulate matter cleaning device, which belongs to the technical field of environmental protection, and comprises a fan, a reducing pressurizing piece, a discharge pipe and a separator, and the output end of the fan is connected with one end of the discharge pipe; a separator is arranged at the other end of the discharging pipe; the variable-diameter pressurizing piece is mounted in the discharging pipe; and the discharge pipe is provided with a side interface at the downstream of the variable-diameter pressurizing piece. Under the action of the fan and the reducing pressurizing piece, negative pressure is formed on the downstream side connector, air and particulate matter enter the discharging pipe from the side connector, the particulate matter and the air are separated out through the separator, and harmless treatment is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of environmental protection, in particular to a particle cleaning device. Background Art

[0002] In dry flue gas desulfurization, the absorption tower needs to be cleaned of solid particles of 200-500 microns during maintenance. The environment is harsh, and it is unsafe to work in a small, confined space with toxic and harmful substances, which may cause harm to people. The cleaning process is relatively difficult, and secondary injuries are likely to occur during the cleaning process, which can easily cause environmental pollution and pose a safety hazard to personnel.

[0003] In dry desulfurization processes, cleaning of materials within the absorption system should be done in a negative pressure operating environment. Otherwise, the labor intensity and the risk of environmental pollution will increase. For example, if the desulfurization system pressure increases or becomes clogged, a short shutdown will be required for immediate cleaning and resumption of production.

[0004] Therefore, a particle cleaning device is needed to discharge harmful air and harmful particles in a space and perform harmless treatment. Utility Model Content

[0005] In response to the above technical problems existing in the prior art, the utility model provides a particle cleaning device that introduces negative pressure to absorb air and particles in the environment and then perform harmless treatment.

[0006] The utility model discloses a particle cleaning device, comprising a fan, a variable-diameter pressure piece, a discharge pipe and a separator, wherein the output end of the fan is connected to one end of the discharge pipe; the other end of the discharge pipe is provided with a separator; the variable-diameter pressure piece is installed in the discharge pipe; the discharge pipe is provided with a side interface downstream of the variable-diameter pressure piece.

[0007] Preferably, the separator comprises a cyclone separator, the air outlet of the cyclone separator is provided with a dust removal component, and the feed port is provided with a feeder;

[0008] The angle between the spiral discharge port of the separator and the discharge pipe is 90°, and the air flow rate is controlled at 1500-6000Nm 3 / h.

[0009] Preferably, a feed pipe is provided on the side interface.

[0010] Preferably, the suction port of the feed pipe is arranged in the space where the particulate matter is to be cleaned.

[0011] Preferably, the diameter of the feed pipe is 100 mm, and the conveying capacity is 50 kg / h-150 kg / h.

[0012] Preferably, the blower includes a Roots blower, the outlet pressure of the Roots blower reaches 25kPa, and the air flow reaches 2.7m3 / min, the outlet pipe of the Roots blower is connected to the discharge pipe or one end of the reducing pressure piece through a flange;

[0013] The variable diameter pressurizing member adopts an ejector.

[0014] Preferably, the ejector has a diameter of 125 mm, a variable diameter of DN125 mm-20 mm, and a variable length of 400 mm.

[0015] Preferably, the negative pressure of the suction port of the feed pipe is -2500 Pa.

[0016] Compared with the existing technology, the beneficial effect of the present invention is that under the action of the fan and the variable diameter pressure member, a negative pressure is formed at the downstream side interface, and air and particulate matter enter the discharge pipe from the side interface, and pass through the separator to separate the particulate matter and air, thereby achieving harmless treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the particle cleaning device of the present utility model.

[0018] Markings in the figure: 1 fan, 2 variable diameter pressure piece, 3 discharge pipe, 31 side interface, 4 feeder, 5 dust removal component, 6 separator, 7 suction port, 8 feed pipe. DETAILED DESCRIPTION

[0019] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0020] The present invention is described in further detail below with reference to the accompanying drawings:

[0021] A particle cleaning device, such as Figure 1 As shown, it includes a fan 1, a variable-diameter pressure member 2, a discharge pipe 3 and a separator 6. The output end of the fan 1 is connected to one end of the discharge pipe 3; the other end of the discharge pipe 3 is provided with a separator 6; the variable-diameter pressure member 2 is installed in the discharge pipe 3; the discharge pipe 3 is provided with a side interface 31 downstream of the variable-diameter pressure member 2.

[0022] Under the action of the fan 1 and the variable diameter pressure member 2, a negative pressure is formed at the downstream side interface, and air and particulate matter enter the discharge pipe 3 from the side interface and pass through the separator 6 to separate the particulate matter and air, achieving harmless treatment. The utility model has a simple structure, convenient and effective operation, simple and accurate feed control, low operating energy consumption, reduced risk during operation, safe operation, and achieves the purpose of clearing particulate matter in the space. It is a very cost-effective solid particulate cleaning device.

[0023] The separator 6 includes a cyclone separator (also known as a cyclone centrifugal separator), the air outlet of the cyclone separator is provided with a dust removal component 5, and the discharge port is provided with a discharger 4; the angle between the spiral discharge port of the separator 6 and the discharge pipe is 90°, and the air flow rate is controlled at 1500-6000Nm 3 / h. Materials with low density and adhesiveness can be transported.

[0024] The side port 31 is provided with a feed pipe 8. More specifically, the suction port 7 of the feed pipe 8 is provided in the space where the particles are to be cleaned. The diameter of the feed pipe 8 is 100 mm, and the delivery rate is 50 kg / h-150 kg / h.

[0025] The blower includes a Roots blower, the outlet pressure of the Roots blower reaches 25kPa, and the air flow reaches 2.7m 3 / min. The Roots blower outlet pipe is flange-connected to the discharge pipe 3 or one end of the reducer pressure member 2. The reducer pressure member 2 can be an ejector. The ejector has a diameter of 125mm, a variable diameter of DN125mm-20mm, and a length of 400mm. The negative pressure at the suction port of the feed pipe is -2500 Pa.

[0026] Fine particles pass through the high-speed rotating fan to generate high-pressure airflow and the air ejector to form a large negative pressure, which can suck the fine particles out of the confined toxic and harmful space, thereby achieving the purpose of quickly cleaning fine particles from the confined space (referring to the toxic and harmful system that needs to be cleaned). The purpose of removing solid fine particles from the confined toxic and harmful space is achieved.

[0027] The solid particles entering the negative pressure zone and the high-pressure gas from the Roots blower are mixed after being pressurized by the ejector and then carried by the high-pressure airflow into the cyclone dust collector.

[0028] Fine dust and air with lower density are further processed by the dust removal component, and particles with higher density are collected and transported by the discharger on one side of the separator 6.

[0029] The particle cleaning device of the utility model has a simple structure, is suitable for processing harmful particles with high flue gas pressure and low solid particle density, and is a feeding device with high cost performance.

[0030] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A particle cleaning device, characterized in that: It includes a fan (1), a variable-diameter pressure member (2), a discharge pipe (3) and a separator (6). The output end of the fan (1) is connected to one end of the discharge pipe (3); The other end of the discharge pipe (3) is provided with a separator (6); The variable-diameter pressurizing component (2) is installed in a discharge pipe (3); the discharge pipe (3) is provided with a side interface (31) downstream of the variable-diameter pressurizing component (2).

2. The particle cleaning device according to claim 1, characterized in that: The separator (6) comprises a cyclone separator, wherein the air outlet of the cyclone separator is provided with a dust removal component (5), and the discharge port is provided with a discharger (4); The angle between the discharge port of the separator (6) and the discharge pipe is 90°, and the air flow rate is 1500-6000Nm 3 / h.

3. The particle cleaning device according to claim 1, characterized in that: A feed pipe (8) is provided on the side interface (31).

4. The particle cleaning device according to claim 3, characterized in that: The suction port (7) of the feed pipe (8) is arranged in the space where the particles are to be cleaned.

5. The particle cleaning device according to claim 3, characterized in that: The diameter of the feed pipe (8) is 100 mm, and the conveying capacity is 50 kg / h-150 kg / h.

6. The particle cleaning device according to claim 3, characterized in that: The blower (1) includes a Roots blower, the outlet pressure of the Roots blower is 25kPa, and the air flow is 2.7m 3 / min, the Roots blower outlet pipe is connected to the discharge pipe (3) or one end of the variable diameter pressure member (2) through a flange; The variable diameter pressurizing member (2) is an ejector.

7. The particle cleaning device according to claim 6, characterized in that: The ejector has a diameter of 125 mm, a variable diameter of DN125 mm-20 mm, and a variable diameter length of 400 mm.

8. The particle cleaning device according to claim 7, characterized in that: The negative pressure of the suction port (7) of the feed pipe (8) is -2500 Pa.

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