CN1224444C - Cyclone-wet type dcompound dust collector with fiber grid mesh - Google Patents

Abstract

The present invention relates to a cyclone-wet type compound dust collector with a fiber grid mesh, which belongs to the equipment for environmental protection and dust collecting treatment and is composed of a cyclone type dust collector and a wet type fiber mesh dust collector. The whole dust collector is in an inverted U-shaped structure and two parts are connected in series, wherein one part is the cyclone type dust collector, the upper part of the cyclone type dust collector is provided with cyclone type dust collecting components, and the lower part of the cyclone type dust collector is provided with an ash bucket and a revolving type ash discharging valve. The cyclone type dust collector is connected with a bent arm and the other end of the bent arm is connected with the wet type fiber mesh dust collector via a diameter variation pipe. The side surface of the wet type fiber mesh dust collector is provided with a water purifier and the lower part of the wet type fiber mesh dust collector is provided with a drainage pipe and a vertical settling tank. The side surface of the settling tank is provided with a bracket and the lower end of the settling tank is provided with a flushing valve and an ash discharging mesh. The present invention has the advantages of high dust collecting effect, simple structure, convenient maintenance, easy manufacture and low price and also has a definite collecting effect on harmful gas in air current due to the absorption effects of water films and fog drops, such as lime water which is sprayed into the dust collector has a definite desulfurizing effect. Therefore, the present invention is suitable for general popularization.

Description

Cyclone - wet fiber grid composite dust collector

Technical field

The invention relates to an environmental protection device, which is suitable for smoke control equipment.

Background technique

At present, in environmental protection equipment, cyclone dust collectors are widely used. The working principle of this dust collector is to make the dust-laden air flow rotate at high speed in the cylinder, and the dust particles are attached to the wall by centrifugal force to capture the dust. Its advantages are: it has a simple structure, It has the characteristics of convenient maintenance and low price, but its disadvantage is that the dust removal efficiency is not only affected by the inlet wind speed, but also by the dust particle size and density. The larger the particle size and the higher the density of dust, the higher the efficiency at the same inlet wind speed. However, its dust removal efficiency is not high, generally only 80-90%, especially for fine particles, which cannot meet the current environmental protection requirements for smoke emission indicators.

Contents of the invention

In order to solve the insufficiency of the function of the above cyclone dust collector, the object of the present invention is to provide a composite dust collector, which organically combines the cyclone dust collector and the wet fiber grid dust collector, and effectively realizes the advantages of high dust removal efficiency, simple structure, The purpose of easy maintenance, easy manufacture and low price.

The structural design of the present invention is realized like this: its structure of composite dust catcher is made up of cyclone dust catcher, bent pipe, variable diameter pipe, wet type fiber grid dust catcher, water purifier, vertical sedimentation box main parts (as shown in Figure 1 As shown), the entire dust collector is an inverted U-shaped structure, and the two parts are in series. The connection is: the side of the cyclone dust collector is the inlet, the upper end is connected to one end of the elbow, and the lower end is connected to the ash hopper and the rotary ash discharge valve. The other end of the pipe is connected to the wet fiber grid dust collector through a variable diameter pipe. The lower end of the wet fiber grid dust collector is connected to the drain pipe and exhaust pipe. A vertical sedimentation box is installed under the drain pipe and exhaust pipe. The sedimentation box is connected to the fiber grid. A water purifier is installed between the dust collectors, the water inlet of the water purifier is connected with the outlet of the sedimentation tank by pipelines, and the outlet of the water purifier is connected with the water supply port in the wet fiber grid. In order to save energy, the water purifier connects the sedimentation tank The clean water above is reused. The side of the sedimentation tank is equipped with a fixed bracket. The lower end of the sedimentation tank is equipped with a flushing valve and an ash discharge valve. There is an exhaust port on the side of the sedimentation tank. After operation, the dry ash is discharged from the rotary ash discharge valve. The mud is discharged from the mud valve at the lower end of the settling tank, and the following is the detailed structure of each component. The cyclone dust collector is in the form of a funnel (as shown in Figure 2), the middle is a cylinder, the bottom is a cone, and the horizontal side of the top is equipped with an air intake pipe. The air inlet is equipped with an exhaust pipe on the top, which is the exhaust port, and the lower end of the cone is equipped with an ash hopper and a rotary ash discharge valve; The water spray pipe has an observation window corresponding to the water spray pipe, and the top is equipped with a flushing pipe and a nozzle. The corresponding water spray pipe is equipped with a filter frame, and a filter frame is installed on the filter frame. 4), the outer side of the fiber grid is equipped with a sealing cover, the corresponding fiber grid is provided with an observation hole, and the lower end of the fiber grid dust collector is respectively equipped with a drain pipe and an exhaust pipe; the water purifier is composed of a pipeline and a water filter cartridge (as shown in Figure 5 As shown), the front of the water purifier is the inlet, which is connected to the upper water outlet of the vertical sedimentation tank. For the convenience of maintenance, it is connected to the water filter cylinder through two channels, one of which is connected to the tee, straight pipe, water gate, straight pipe, and elbow It is connected with the upper opening of the water filter cartridge, and the other path is connected with the side port of the water filter cartridge through a tee, straight pipe, elbow, straight pipe, joint, straight pipe, and water gate. This pipeline is used in the case of maintenance or backwashing, and the outside of the water filter cartridge It is an outer casing with a filter valve inside, the top is fixed by a filter screen, the bottom is fixed by screws and nuts, and the middle is equipped with a rubber gasket to connect with the joint pipe. A water pressure gauge and a water gate are installed on the joint pipe. The water gate is a drain. Similarly, a water gate is installed on the lower side to discharge the filtered mud, and finally discharge it as purified water from the outlet of the water filter cylinder.

The invention has the advantages of high dust removal efficiency, simple structure, convenient maintenance, easy manufacture, and low price. In addition, due to the adsorption of water film and mist, it also has a certain trapping effect on harmful gases in the airflow, such as spraying lime Water has a certain desulfurization effect and is suitable for general promotion and use.

Description of drawings

Figure 1 is the overall structure of the cyclone-wet fiber grid composite dust collector;

Figure 2 is a structural diagram of the cyclone dust collector of the cyclone-wet fiber grid composite dust collector;

Fig. 3 is the structural diagram of the wet fiber grid dust collector of the cyclone-wet fiber grid composite dust collector;

Fig. 4 is the structural diagram of the fiber grid of the cyclone-wet fiber grid composite dust collector;

Figure 5 is a structural diagram of the cyclone-wet fiber grid composite dust collector water purifier.

Among them, in Figure 1: 1 cyclone dust collector, 2 elbow pipes, 3 variable diameter pipes, 4 wet fiber grid dust collectors, 5 water purifiers, 6 drain pipes, 7 exhaust pipes, 8 vertical sedimentation tanks, 9 brackets, 10 flushing valve, 11 ash discharge valve;

Among Fig. 2: 12 intake pipes, 13 exhaust pipes, 14 barrels, 15 cones, 16 ash hoppers, 17 rotary ash discharge valves;

Among Fig. 3: 18 spray pipes, 19 air intake pipes, 20 observation windows, 21 flushing pipes, 22 nozzles, 23 filter frames, 24 sealing covers, 25 measuring holes, 26 drainage pipes, 27 exhaust pipes, 28 water outlet holes, 29 vent holes;

Among Fig. 4: 30 filter holders, 31 fiber grids;

Among Fig. 5: 32 water inlets, 33 tees, 34, 36, 38, 40, 42 straight pipes, 35, 43 elbows, 37 joints, 39, 41 water gates, 44, 47 rubber washers, 45 outer casings, 46 filters Net, 48 joint pipes, 49 water pressure gauges, 50 water gates, 51 drain outlets, 52 filter screen fixing cards, 53 water gates, 54 screw nuts, 55 water filter cylinders.

Detailed ways

The structure and working principle of the present invention are described in detail in conjunction with accompanying drawings.

It can be seen from Figure 1 that the side of the cyclone dust collector 1 is the air inlet, and the air inlet needs to be purified. On the one hand, the dry ash is discharged from the ash hopper 16 and the rotary ash discharge valve 17 under the cyclone dust collector, and is connected in series with the cyclone dust collector. It is a curved pipe 2, connected with wet fiber grid dust collector 4 through variable diameter pipe 3, connected with vertical sedimentation tank 8 by drain pipe 6 and exhaust pipe 7 below, and water purifier 5 is installed on the side, and the dust contained in the dust The mud is discharged from the ash discharge valve 11 below the settling tank. The upper part of the cyclone dust collector 1 is an exhaust pipe 13, the lower part is a cylinder 14, the lower part of the cylinder 14 is a cone 15, and the bottom is an ash hopper 16 and a rotary ash discharge valve 17; the other part connected in series with the cyclone dust collector is a wet type Fiber grid deduster 4, the detailed structure is the air intake pipe 19 on the top, the water spray pipe 18 is installed below, the flushing water pipe 21 on the top, the nozzle 22, the filter frame 23 is housed in the middle, the filter bracket 30 and the fiber grid 31 are housed on the frame, Below is drainpipe 26, exhaust pipe 27, water outlet 28, air outlet 29, and water purifier 5 is housed between the fiber grid and the vertical settling box, and purifier 5 main body is filter cartridge 55, and two passages and filter are arranged in the front. The water cylinder is connected, wherein one path passes through the tee 33, the straight pipes 34, 36, 38, the elbow 35, the joint 37 and the water gate 39 are connected with the side opening of the water filter cylinder 55, and the other path passes through the tee 33, the straight pipes 40, 42, and the water gate 41 , the elbow 43 is connected with the upper port of the water filter cylinder. For the convenience of maintenance, the lower pipeline is only opened at the moment of maintenance of the upper pipeline. The outside of the water filter cylinder 55 is an outer sleeve 45, and the inside filter screen 46 is equipped with a water gate 50 and a water pressure gauge. 49, rubber pad 47 is housed in the middle, water gate 53 is housed below, side 50 water gates are water outlets, for purified water, and water gate 53 below is the mud discharge outlet after filtering, in a word dusty air passes through after two kinds of dust collectors dust removal, makes dusty air be effectively purified.

Claims (4)

1. A cyclone-wet fiber grid composite dust collector is characterized in that the dust collector consists of a cyclone dust collector (1), a bent pipe (2), a variable diameter pipe (3), a wet fiber grid dust collector (4), The water purifier (5) and the vertical sedimentation tank (8) are mainly composed of main components. The entire dust collector is an inverted U-shaped structure in a series connection. The connection is: the side of the cyclone dust collector (1) is the inlet, and the upper end is connected to the elbow end. Its lower end is connected with the ash hopper (16) and the rotary ash discharge valve (17), and the other end of the elbow (2) is connected with the wet fiber grid dust collector (4) through the reducing pipe (3), and the wet fiber grid dust collector The lower end of the device (4) is connected to the drainpipe (6) and the exhaust pipe (7), and a vertical settling box (8) is installed below the drainpipe (6) and the exhaust pipe (7), and the settling box (8) is connected with the A water purifier (5) is installed between the fiber grid dust collectors (4), the water inlet of the water purifier is connected to the water outlet of the sedimentation tank, the water outlet of the water purifier is connected to the water supply port of the wet fiber grid, and the water outlet of the sedimentation tank (8) A fixed bracket (9) is installed on the side, a flushing valve (10) and an ash discharge valve (11) are installed at the lower end of the settling box (8), and an exhaust port is opened on the side of the settling box (8). After operation, the dry ash is discharged from the rotary The ash discharge valve (17) is discharged, and the mud is discharged from the ash discharge valve (11) at the lower end of the settling tank (8). 2. The cyclone-wet fiber grid composite dust collector according to claim 1, characterized in that the cyclone dust collector (1) is in the form of a funnel, the middle is a cylinder (14), the bottom is a cone (15), and the top is horizontal Air inlet pipe (12) is equipped with on the side, is air inlet, and exhaust pipe (13) is equipped with on the top, is exhaust port, and ash hopper (16) and rotary ash discharge valve (17) are equipped with at the lower end of the cone. 3. The cyclone-wet fiber grid composite dust collector according to claim 1, characterized in that the outside of the wet fiber grid dust collector is a shell, the top is an air inlet (19), and the inside is equipped with a water spray pipe (18 ), the corresponding water spray pipe (18) has an observation window (20), the top is equipped with a flush pipe (21) and a shower nozzle (22), and the corresponding water spray pipe is equipped with a filter frame (23), on the filter frame (23) A filter bracket (30) is installed, a fiber grid (31) is fixed on the bracket, a sealing cover (24) is installed on the outside of the fiber grid (31), and an observation hole (25) is opened corresponding to the fiber grid, and the lower end of the fiber grid dust collector is respectively installed Drain pipe (26), exhaust pipe (27) are arranged. 4. The cyclone-wet fiber grid composite dust collector according to claim 1, characterized in that the water purifier is composed of a pipeline and a water filter tube, and the front of the water purifier is an inlet (32), which passes through two channels and the water filter tube ( 55) connection, one of which connects with the upper opening of the filter cartridge (55) through the tee (33), straight pipe (40), water gate (41), straight pipe (42), elbow (43), and the other through the tee (33), straight pipe (34), elbow (35), straight pipe (36), joint (37), straight pipe (38), water gate (39) are connected with the side ports of the filter cartridge, during maintenance and backwashing Using this pipeline, the outside of the water filter cylinder is an outer casing (45), and a filter screen (46) is installed inside, the upper side is fixed by the filter screen (52), the screw nut (54) is fixed on the lower side, and the rubber washer (47) is installed in the middle. ) is connected with the joint pipe (48), a water pressure gauge (49) and a water gate (50) are installed on the joint pipe (48), which is a water outlet (51), and a water gate (53) is also installed on the lower side to discharge the filtered mud , and finally discharged from the outlet of the filter cylinder as purified water.

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