Dust removal device for air film material shed

Abstract

The utility model provides a dust removal device for an air film material shed, and relates to the technical field of dust removal devices. The dust removal device comprises supporting legs, a dust hopper, a dust removal box, an induced draft fan and a controller, the dust hopper is arranged below the dust removal box, the dust hopper is communicated with the interior of the dust removal box, and the supporting legs are arranged below the dust hopper; an air inlet is formed in the side face of the dust hopper, and an exhaust port is formed above the dust removal box and connected with the induced draft fan through a pipeline; the dust removal box comprises a dust air chamber at the lower part and an air purification chamber at the upper part, the dust air chamber and the air purification chamber are separated by a pore plate, the air nozzle is connected with the electromagnetic pulse valve through an air pipe, and the other end of the electromagnetic pulse valve is connected with the air storage tank through an air pipe; a dust sweeping brush is arranged between the filter bags, is parallel to the filter bags, and is driven to rotate by a motor through belt transmission; and the electromagnetic pulse valve and the motor are electrically connected with the controller respectively. The dust removal device for the air film material shed is high in dust removal efficiency, frequent dust removal is not needed, and the service life of the filter bag is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of dust removal devices, and particularly relates to a dust removal device for an air film material shed. Background Technique

[0002] Inflatable membranes have a wide range of uses in building structures. As a green and environmentally friendly building technology, they solve the pollution caused by open-air storage of raw materials and the losses caused by wind and rain. An air film material shed is a special building structure form. It uses a film material to form a closed space, which is locked and inflated, and is equipped with an appropriate steel cable system to become a closed raw material storage and transportation building. The inflatable film material shed has the advantages of "light, fast, good, and economical". The air film material shed has little environmental damage and a light self-weight, which is one-tenth of that of ordinary buildings.

[0003] For a complete air film material shed structure, in addition to the closed space composed of stiffening locks, film materials and air, intelligent control ventilation equipment is also required to perform pressurization and decompression operations according to actual needs. The intake air of the air film material shed is pumped into the interior by an air pump, and the exhaust air needs to be discharged after dust removal. The existing dust removal devices for air film material sheds have low dust removal efficiency and require frequent maintenance. Content of the Utility Model

[0004] Therefore, the utility model provides a dust removal device for an air film material shed to overcome the problems existing in the foregoing prior art.

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

[0006] A dust removal device for an air film material shed includes legs, a hopper, a dust removal box, an induced draft fan and a controller. The hopper is arranged below the dust removal box, and the inside of the hopper and the dust removal box is interconnected. The legs are arranged below the hopper. An air inlet is opened on the side of the hopper, and a dust discharge port is opened at the bottom of the hopper. An exhaust port is arranged above the dust removal box, and the exhaust port is connected to the induced draft fan through a pipeline. The dust removal box includes a lower dust gas chamber and an upper clean gas chamber. The dust gas chamber and the clean gas chamber are separated by an orifice plate. Filter bags are inserted into the dust gas chamber through the orifice plate. The filter bags are lined with filter bag inner frames. A venturi tube is arranged above the filter bag inner frame, and an air nozzle is arranged above the venturi tube to blow air into the filter bag. The air nozzle is connected to an electromagnetic pulse valve through an air pipe, and the other end of the electromagnetic pulse valve is connected to a gas storage tank through an air pipe. The gas storage tank is connected to a compressor, and the compressor fills the gas storage tank with air. A dust sweeping brush is arranged between the filter bags. The dust sweeping brush is arranged parallel to the filter bags. The upper end of the dust sweeping brush is in the clean gas chamber, and the main body of the dust sweeping brush is in the dust gas chamber. The dust sweeping brush is driven to rotate by a motor through a belt drive. The electromagnetic pulse valve and the motor are respectively electrically connected to the controller.

[0007] As a preference, a detachable top cover is provided at the top of the dust removal box, and the number of the top covers is more than two; a maintenance platform is arranged outside the top of the dust removal box, a ladder is arranged outside the dust removal box from bottom to top, the ladder leads to the maintenance platform, and guardrails are arranged around the top of the dust removal box and the maintenance platform. The maintenance platform is convenient for maintaining the electromagnetic pulse valve and the peripheral gas circuit of the air storage tank, and the top cover of the dust removal box can also be opened from the maintenance platform to replace the filter bag.

[0008] As a preference, the motor is fixed on the orifice plate, a pulley is arranged on the shaft of the motor, the ash sweeping brush is in the shape of a long rod, the bristles are radially arranged in a radial shape, a double-groove pulley is arranged at the head of the ash sweeping brush, the ash sweeping brush is driven by a belt, and multiple ash sweeping brushes are linked in groups. When the filter bag is cleaned by the high-pressure pulse gas blowing to make it shake, the filter bag expands, and the ash sweeping brush rotates to clean the outer surface of the filter bag, greatly improving the ash cleaning efficiency.

[0009] As a preference, a discharge valve is arranged in the ash discharge port, the discharge valve uses a star-shaped discharge valve, and an observation window is arranged on the side of the ash hopper. The star-shaped discharge valve can discharge the powder ash while maintaining airtightness without affecting the operation of the dust removal device. The observation window is convenient for observing the dust accumulation in the ash hopper. When the dust accumulation is thick, the ash is discharged in time.

[0010] As a preference, a differential pressure sensor is arranged outside the dust removal box, two probes of the differential pressure sensor are respectively communicated with the clean gas chamber and the dust gas chamber, the differential pressure sensor measures the pressure difference between the clean gas chamber and the dust gas chamber, and the differential pressure sensor is electrically connected with the controller. The setting of the differential pressure sensor can realize the automatic ash cleaning of the dust removal device. When the pressure difference is large and reaches the set threshold value, at this time, the dust accumulates outside the filter bag to cause a large resistance, and ash cleaning is required. Under the action of the controller, the ash cleaning action starts.

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

[0012] For the dust removal device for the air film storage shed provided by the present utility model, during use, the air inlet is connected to the exhaust port of the air film storage shed, the dust-containing gas generated by the air film storage shed enters the ash hopper from the air inlet of the dust removal device, and larger particles of dust directly fall into the ash hopper; the remaining dust gas enters the dust gas chamber and enters the filter bag from outside the filter bag, and the dust is filtered and blocked by the filter bag to achieve purification. After purification, the gas enters the clean gas chamber and is then sucked away and discharged into the atmosphere under the suction of the induced draft fan. When the pressure difference between the clean gas chamber and the dust gas chamber is large and reaches the set threshold value, at this time, the filter bag needs to be cleaned; during ash cleaning, the electromagnetic pulse valve is opened, and a high-pressure pulse air flow is sprayed into the filter bag through the air nozzle. While the filter bag shakes for ash cleaning, the ash sweeping brush rotates to clean the outer surface of the filter bag, improving the ash cleaning efficiency and ash cleaning effect. Description of the Drawings

[0013] The present utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0014] Figure 1 is a schematic structural diagram of the present utility model;

[0015] Figure 2 is Figure 1 a partial enlarged view of part A in

[0016] Figure 3 is an internal structural diagram of the dust removal box;

[0017] Figure 4 is Figure 3 a partial enlarged view of part B in

[0018] Figure 5 is a schematic structural diagram of the position of the ash sweeping brush;

[0019] In the figure: 1, support leg; 2, air inlet; 3, ash hopper; 4, dust removal box; 41, top cover; 42, electromagnetic pulse valve; 43, gas storage tank; 44, venturi tube; 45, air nozzle; 46, inner frame of filter bag; 47, ash sweeping brush; 48, belt; 49, orifice plate; 410, motor; 5, pipeline. Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present utility model.

[0021] Please refer to Figures 1 to 5As shown in the figure, this embodiment provides a dust removal device for a gas film storage shed, which includes legs 1, a hopper 3, a dust removal box 4, an induced draft fan and a controller. The hopper 3 is arranged below the dust removal box 4, the upper part of the hopper 3 communicates with the lower part of the dust removal box 4, and the legs 1 are arranged below the hopper 3. An air inlet 2 is formed on the side of the hopper 3, a dust discharge port is arranged at the bottom of the hopper 3, an exhaust port is arranged above the dust removal box 4, and the exhaust port is connected to the induced draft fan through a pipeline 5. The dust removal box 4 includes a dust gas chamber at the lower part and a clean gas chamber at the upper part. The dust gas chamber and the clean gas chamber are separated by an orifice plate 49. Filter bags are inserted into the dust gas chamber through the orifice plate 49. The filter bags are lined with filter bag inner frames 46. A venturi tube 44 is arranged above the filter bag inner frame 46. A gas nozzle 45 is arranged above the venturi tube 44 to blow air into the filter bags. The gas nozzle 45 is connected to an electromagnetic pulse valve 42 through an air pipe. The other end of the electromagnetic pulse valve 42 is connected to a gas storage tank 43 through an air pipe. The gas storage tank 43 is connected to a compressor, and the compressor supplies air to the gas storage tank. A dust sweeping brush 47 is arranged between the filter bags. The dust sweeping brush 47 is arranged parallel to the filter bags. The upper end of the dust sweeping brush 47 is located in the clean gas chamber, and the main body of the dust sweeping brush 47 is located in the dust gas chamber. The dust sweeping brush 47 is driven to rotate by a motor 410 through a belt 48. The electromagnetic pulse valve 42 and the motor 410 are respectively electrically connected to the controller.

[0022] Refer to Figure 1 As shown in the figure, a detachable top cover 41 is arranged on the top of the dust removal box 4. The number of the top covers 41 is preferably set to more than two, and in this embodiment, it is six. A maintenance platform is arranged on the outer side of the top of the dust removal box 4. A ladder is arranged outside the dust removal box 4 from bottom to top. The ladder leads to the maintenance platform. A guardrail is arranged around the top of the dust removal box and the maintenance platform.

[0023] Please refer to Figure 4 and Figure 5 As shown in the figure, the motor 410 is fixed to the lower side of the orifice plate 49 with screws. A pulley is arranged on the shaft of the motor 410. The overall shape of the dust sweeping brush 47 is a long rod shape. The bristles of the dust sweeping brush 47 are radially arranged in a radial pattern. A double-groove pulley is arranged at the head of the dust sweeping brush 47. The dust sweeping brush 47 is driven by a belt 48, and multiple dust sweeping brushes 47 are driven in a group.

[0024] In addition, a dust discharge valve is arranged in the dust discharge port. The dust discharge valve can be an optional star-shaped discharge valve, or two plate valves can be connected in series to control the dust discharge. An observation window is arranged on the side of the hopper 3 to observe the dust accumulation in the hopper.

[0025] A differential pressure sensor is arranged on the dust removal box 4. The two probes of the differential pressure sensor are respectively communicated with the clean gas chamber and the dust gas chamber. The differential pressure sensor measures the pressure difference between the clean gas chamber and the dust gas chamber. The differential pressure sensor is electrically connected to the controller, and controls the electromagnetic pulse valve and the dust sweeping brush to start dust cleaning when the pressure difference reaches the set value.

[0026] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A dust removal device for an air film storage shed, characterized in that: It includes outriggers, a hopper, a dust removal box, an induced draft fan and a controller. The hopper is arranged below the dust removal box, and the inside of the hopper and the dust removal box is interconnected. The outriggers are arranged below the hopper. An air inlet is formed on the side of the hopper, and a dust discharge port is formed at the bottom of the hopper. An exhaust port is arranged above the dust removal box, and the exhaust port is connected to the induced draft fan through a pipeline. The dust removal box includes a lower dust gas chamber and an upper clean gas chamber. The dust gas chamber and the clean gas chamber are separated by an orifice plate. Filter bags are inserted into the orifice plate and extend into the dust gas chamber. The filter bags are lined with filter bag inner frames. A venturi tube is arranged above the filter bag inner frame. A nozzle above the venturi tube blows air into the filter bag. The nozzle is connected to an electromagnetic pulse valve through an air pipe. The other end of the electromagnetic pulse valve is connected to a gas storage tank through an air pipe. The gas storage tank is connected to a compressor, and the compressor fills the gas storage tank with air. A dust sweeping brush is arranged between the filter bags. The dust sweeping brush is arranged parallel to the filter bags. The upper end of the dust sweeping brush is in the clean gas chamber, and the main body of the dust sweeping brush is in the dust gas chamber. The dust sweeping brush is driven to rotate by a motor through belt transmission. The electromagnetic pulse valve and the motor are respectively electrically connected to the controller.

2. The dust removal device for the air film storage shed according to claim 1, wherein: A detachable top cover is arranged on the top of the dust removal box, and the number of the top covers is more than two. A maintenance platform is arranged on the outer side of the top of the dust removal box. A ladder is arranged outside the dust removal box from bottom to top, and the ladder leads to the maintenance platform. A guardrail is arranged around the top of the dust removal box and the maintenance platform.

3. The dust removal device for the air film storage shed according to claim 2, characterized in that: The motor is fixed on the orifice plate. A pulley is arranged on the shaft of the motor. The dust sweeping brush is in the shape of a long rod. The bristles of the dust sweeping brush are radially arranged in a radial pattern. A double-groove pulley is arranged at the head of the dust sweeping brush. The dust sweeping brush is driven by belt transmission, and multiple dust sweeping brushes are linked in groups.

4. The dust removal device for the air film storage shed according to claim 3, characterized in that: A dust discharge valve is arranged in the dust discharge port. The dust discharge valve uses a rotary air lock valve. An observation window is arranged on the side of the hopper.

5. The dust removal device for the air film storage shed according to claim 4, wherein: A differential pressure sensor is arranged outside the dust removal box. Two probes of the differential pressure sensor are respectively communicated with the clean gas chamber and the dust gas chamber. The differential pressure sensor measures the pressure difference between the clean gas chamber and the dust gas chamber. The differential pressure sensor is electrically connected to the controller.

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