CN2038029U - Dust separator - Google Patents

Abstract

The utility model relates to a dust remover which comprises a machine core arranged in a metal box body and supported and fixed with angle steel, a supporting plate and reinforced concrete and a dust collecting box, wherein, the machine core is composed of an exhaust pipe, a guiding machine and a cyclone; the guiding machine can be made of cast-iron alloy materials. The utility model has the advantage of small size and can assemble the machine core in the metal box body in production. Simultaneously, dust removing efficiency is increased more than 95 %; highest dc 50 classification efficiency can reach 1.0 mm. Assembling blocks assembled into minor tonnage can be connected in parallel or in series as required to obtain dust removers with different large tonnage and class. The utility model is suitable for the dust removement of high-capacity boilers with 10 to 760 tonnages.

Description

Dust separator

The utility model relates to a kind of device of removing the solid combustion product.

At present, be used for the equipment that boiler dust administers and mainly contain electrostatic precipitator, sack cleaner, metal cyclone dust collectors etc.Though electrostatic precipitator efficiency of dust collection height, one-time investment is big, and need in service are established the personal management, is difficult for penetration and promotion with regard to its economic benefit.Sack cleaner exists then that cracky, maintenance capacity are big, the shortcoming of maintenance difficulty.The metal cyclone dust collectors, lack not corrosion-resistant, service life.

The present ceramic multicyclone dust collector that uses, though have that efficiency of dust collection height (more than 90%) is high temperature resistant, corrosion-resistant, cost is low, an easy installation, long service life, advantages such as convenient management, but because of the special construction of the critical piece guider of its movement and the restriction of ceramic processing technology, make that the physical dimension of guider is bigger, caliber is 120 millimeters in the general minimum guider, and outer tube diameter is 290 millimeters.The size of movement is also corresponding bigger.Because whole deduster is to be combined by a plurality of movements, this just causes whole deduster bulky, is similar to a building, can't be assembled into one in process of production, need movement and other material are transported to on-the-spot assembling, bring a series of difficulty thus, therefore do not satisfy demand.In addition, because its guider spiral caliber is bigger, centrifugal radius is big, imperceptible grit is caught do not prove effective, especially a dc50 classification efficiency.Thereby can not be applied to metallurgical dedusting and cement recovery.

The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, provide a kind of and both had that ceramic deduster is high temperature resistant, the burn into cost is low, advantages such as long service life have higher efficiency of dust collection again, and volume is little, in light weight, the deduster of overall package in process of production.

The purpose of this utility model can reach by following measure:

A kind of deduster mainly comprises angle steel, gripper shoe and the armored concrete of disposal box, movement and support fixation movement.

Movement is made up of blast pipe, guider, whirlwind.Guider adopts heat endurance, the good cast-iron alloy material of non-oxidizability, as the chromium cast iron contained alloy, contain the rare earth element cast-iron alloy, contain the magnesium cast-iron alloy, siliceous cast-iron alloy, preferably adopt the chromium cast iron contained alloy.Owing to adopt the material of cast-iron alloy as guider, make guider both have the characteristics that ceramic guider is high temperature resistant, corrode, can make guider not be subjected to the influence of processing technology again, and reduced the size of guider, therefore caliber can be chosen in 120～40 millimeters in the guider, the spiral outer tube diameter is 270～90 millimeters, and helical angle is 20～30 degree.The size of coupled blast pipe and whirlwind then reduces with guider is corresponding.Blast pipe and whirlwind can adopt cast iron alloy material, also can adopt ganoid ceramic material, make the dust of seizure easily enter disposal box through the whirlwind rim of the mouth, and can not result in blockage.

Owing to reduced the volume and weight of movement, therefore a plurality of movements of using more than 2 tonnages are arranged in certain sequence and be arranged in the metal cabinet that has air inlet and gas outlet, and with angle steel, gripper shoe and armored concrete support fixation, disposal box be located at movement below, can place in the casing, also can be divided into two parts with casing.With the casing that is provided with a plurality of movements is a chunk, and movement is decided according to the tonnage needs in the casing.With between chunk and connect, can obtain the deduster of ascending tonnage, solve large-tonnage and can not collect the difficulty that takes on factory, with this chunk serial connection, can obtain high-level cleaner.

When the flue gas that contains dust is entered in the inlet plenum by air inlet, rotatablely move from top to bottom through the spiral mouth of guider outer tube, form outer vortex, and reach the bottom of whirlwind gradually, grit in the air-flow is then thrown to tube wall with outer vortex, falls into disposal box along wall, discharges through ash discharging hole.After downward air-flow arrives the sub-cone base of whirlwind, transfer upwards to form the inside vortex that rises along the movement axis part of deduster, pipe, blast pipe are compiled in exhaust chamber in guider, are discharged through air-introduced machine by the gas outlet.Because the guiding organ pipe reduces through size, the caliber of corresponding whirlwind reduces, and centrifugal radius reduces, and the probability of throwing to tube wall dust increases, and has improved efficiency of dust collection.

That the utility model has adopted is high temperature resistant, the cast-iron alloy of corrosion is as the material of guider, thereby can reduce the size of guider and movement, corresponding volume and the weight that has reduced whole deduster.This deduster is compared with ceramic deduster, volume-diminished 1/4, weight saving 3/4, can in process of production movement be assembled in the metal cabinet.Efficiency of dust collection is brought up to more than 95% simultaneously, is up to 99%.Its dc50 classification efficiency reaches as high as 1.0 microns.This deduster also can be assembled into the chunk of less tonnage as required, again with it and connect or/and be connected in series, obtains different large-tonnages and other deduster of level.This deduster also has the characteristics of ceramic deduster, can be widely used in smoke and dust treatments such as metallurgy, boiler, also can be used for the dust recovery of construction materials such as cement, is applicable to the large-sized boiler dedusting of 10～760 tonnages.

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the cut-away view of the utility model guider.

Fig. 3 is the schematic diagram of the utility model movement.

Fig. 4 is the utility model and connects schematic diagram.

Fig. 5 is the utility model serial connection schematic diagram.

Fig. 1 shows the structure chart of four tons of dedusters, casing (1) adopts structural steel, steel plate is welded, bottom surface at casing (1) is provided with ash discharging hole, two relative sides are provided with air inlet (11) and gas outlet (10), be provided with disposal box (9) in the bottom of casing (1), disposal box (9) top is provided with angle steel (2) angle steel (2) that is connected with the casing column and is provided with supporting steel plate (3) with 28 holes, 28 whirlwind of relative set (5) on the hole, whirlwind (5) is fixed on the steel plate (3) with armored concrete (4) in whirlwind bottom, and form sealant with following disposal box, on 28 whirlwind, be provided with guider (7), still use one deck armored concrete (4) fixing seal in its junction, between whirlwind of two sealants, be full of resistant to elevated temperatures inserts (6), guider (7) top also is provided with angle steel (2) and the steel plate with holes (3) that is connected with casing, blast pipe (8) is connected with guider (7) through steel plate hole, its interface sealing and fixing, on steel plate (3), also be provided with the armored concrete (4) of one deck fixing seal, and the air inlet on the casing (11) and gas outlet (10) are separated, make that the top forms inlet plenum and discharge chamber in the casing, the top is provided with suspension ring (12) and is convenient to lift casing outside.

As Fig. 2, shown in Figure 3 be 4 tonnage dedusters with guider and movements, guider adopts the chromium cast iron contained alloy, caliber A is 80 millimeters in it, spiral external diameter B is 182 millimeters, highly is 354 millimeters, helical angle is 25 to spend.Blast pipe is that its internal diameter of hollow circular-tube is 100 millimeters.Whirlwind is the hollow circular-tube of reverse taper for the bottom, and the interior caliber at its top is 166 millimeters, and the interior caliber of bottom is 65 millimeters, and height is 650 millimeters, and blast pipe and whirlwind all adopt ceramic material to make.

Be to be a chunk as shown in Figure 4, with its two chunk and connect, form 8 tonnage dedusters with 4 tonnage dedusters.

Be with two chunks serial connection as shown in Figure 5, form secondary ash collector.

Claims (3)

1, a kind of deduster of removing the solid combustion product, comprise integrated case (9), by blast pipe (8), guider (7), movement that whirlwind (5) is formed and angle steel (2), gripper shoe (3), the armored concrete (4) of support fixation movement, it is characterized in that:

A, a plurality of movements of using more than 2 tons are arranged in certain sequence be arranged in the metal cabinet (1) that has air inlet (11) and gas outlet (10), support the location with angle steel (2) gripper shoe (3), use armored concrete (4) fixing again, and casing is divided into the inlet plenum and the discharge chamber of relative sealing, be provided with disposal box (9) below the movement.

B, its interior caliber A of described guider (7) are 120～40 millimeters.Spiral outer tube diameter B is 270～90 millimeters, helical angle be 20～30 the degree, blast pipe that links to each other with guider (8) and whirlwind then with its respective change.

2, deduster according to claim 1 is characterized in that with above-mentioned metal cabinet be a chunk, can and connect or/and be connected in series chunk.

3, deduster according to claim 1 is characterized in that the guider material therefor is a cast-iron alloy.

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