CN2294103Y

CN2294103Y - Machine for wetting dust

Info

Publication number: CN2294103Y
Application number: CN97201177.3U
Authority: CN
Inventors: 胡志强; 胡尔廉
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-02-04
Filing date: 1997-02-04
Publication date: 1998-10-14
Anticipated expiration: 2007-02-04

Abstract

The utility model belongs to a mixing device for powder material humidification, particularly a device used for humidification when powder dust collected by dry dust removing systems are convey outwards. The utility model comprises a barrel body, a stirring shaft, and a nozzle. A multiple screw (4), axial stirring vanes (5) and stirring rods (6) which are arranged in a helical mode and are installed in a sloped mode are installed on the stirring shaft. The nozzle is a fan-shaped nozzle which can jet liquid in a sloped direction to guarantee the full diffusion of powder dust and water before the powder dust and the water enters a mixing barrel, and the powder dust and the water are fully mixed under the impact of the stirring rods which rotate with a high speed to achieve the effect that secondary dust blowing can be avoided by using little water. As a result, the utility model not only can save water and energy, but also can be used for humidifying powder dust with strong adhesive property and poor hydrophilic property.

Description

The dust humidifier

The utility model relates to the mix equipment that a kind of powder humidification is used, and particularly relates to a kind of equipment of dust outward transport the time the carrying out humidification of dry dust removal systematic collection.

The dust of dry dust removal systematic collection flies upward for preventing dry ash when outward transport, causes the dust secondary pollution, must add wet process.Existing dust humidifier mix is irregular, and amount of water is big, required hydraulic pressure height, and exist overload to see problems such as commentaries on classics.China utility model CN2084388 discloses a kind of powder humidifier, become the dust mix mud shape thing to discharge, and the more complicated volume of equipment is big; Disclosed a kind of its cement-water ratio of dust mixer of China utility model CN2204195 is 1: 3, and promptly a ash adds three parts of water; The another kind of external humidifier cement-water ratio of introducing is 10: 3, and promptly ten parts of ashes add three parts of water, and the water yield reduces to some extent, but required hydraulic pressure is 0.7-1MPa, the energy consumption of water system is increased, and be that the dry ash of emitting phenomenon is arranged.In addition, the viscosity of the dust behind the humidification is relevant with cement-water ratio, reaches maximum when a certain cement-water ratio, and the mix resistance heightens, and energy consumption increases, even makes motor see commentaries on classics.The nozzle of prior art is a kind of straight nozzle that is contained in the cylindrical shell top, and the strong walk of caking property is easily formed in the part on water direct projection cylindrical shell bottom, cement-water ratio is lower than at 10: 3 o'clock and this situation very easily occurs, vaporific nozzle can improve this situation, but needs higher hydraulic pressure, and nozzle is easily seen plug.

The purpose of this utility model is that a kind of dust humidifier of saving water and energy will be provided, and it can effectively be reduced to cement-water ratio below 10: 1, and hydraulic pressure only needs 0.1-0.2MPa, and can reduce the bonding of dust in tube effectively.Prevent that motor from seeing commentaries on classics.

The purpose of this utility model is achieved in that to making dust equably from importing the mix tube to barrel, the feed of shaft partly is equipped with multi-head spiral, for making the dust that enters the mix tube quicken to spread to discharging opening, the axial stirring vane of 2-4 sheet is housed on shaft, for the mix effect that strengthens puddler and the dust after promoting dust, water and humidification move to the discharging opening direction, puddler is along helical arrangement, and tilt to lay along the helicoid that puddler constitutes, the angle of inclination is 10 °-30 °, and is preferable with 15 °-20 °.The incline direction of puddler is as follows: for there being close-burning dust to tilt to the charging aperture direction, tilt to the discharging opening direction for the dust of hydrophily difference.For preventing that not adding wet dust discharges from discharging opening, at the discharge end of shaft the 2-4 sheet is housed and axially stirs short blade, the wet dust that do not add near discharging opening is pushed to the discharging opening direction, in case dry dust escapes.Can and make water fully diffusion in the mix tube in order to make full use of water, be contained in the nozzle of cylindrical shell top, adopt oblique fan-shaped nozzle, make water axially be fan-shaped ejection, or nozzle is installed on the end face of mix tube feed end along the mix tube, make water be fan-shaped ejection vertically, also can adopt oblique fan-shaped nozzle, make water be fan-shaped ejection, when when the hand of spiral sprays along the hand of spiral, its helical angle is 30 °-60 °, with 45 ° better.Fan-shaped nozzle and oblique fan-shaped nozzle are known, not only can avoid forming in the part walk on the humidifier behind the existing straight nozzle that uses but replace, and can play and utilize water can accelerate powder to efflux, reach energy-conservation effect.Therefore nozzle quantity also can be reduced to 2-4, and when the water yield was identical, nozzle quantity was few, and nozzle diameter is bigger, both can prevent that nozzle from seeing plug, can also reduce water spray pressure.The speed that effluxes for dust behind the further quickening humidification cuts down the consumption of energy, and cylindrical shell and shaft are tilted to install, and the angle of inclination is 4 °-12 °, with 6 °-8 ° better.

Compared with prior art, the utility model has the advantages that simple and practically, save water and energy, can not only adapt to general dust humidification, and can adapt to the humidification of the relatively poor powder of the stronger powder of caking property and hydrophily.

The embodiment that provides below in conjunction with accompanying drawing does into～goes on foot description to the utility model.

What accompanying drawing 1 provided is the utility model structural representation;

Accompanying drawing 2 is structural representations that cylindrical shell and shaft tilt to install.

The cylindrical shell of this humidifier (2) is by forming for barrel (3) and mix tube (8), be contained on the base (12), powder inlet (1) is housed for the top of barrel (3), powder outlet (10) is equipped with in mix tube (8) bottom, shaft (7) is driven by V belt (13) by the motor (14) that is contained on the base (12), bearing block and rolling bearing all are standard components, but because of underframe very big, the site error of considering bearing block may be bigger, therefore bearing should be used self-aligning bearing, shaft (7) is equipped with multi-head spiral (4) corresponding to the part of giving barrel (3), the dust that enters in the barrel (3) is sent in the mix tube (8), the purpose that adopts multi-head spiral is to improve the uniformity of feed, spiral head number is the 2-4 head, and is when spiral external diameter during less than 500mm, preferable with twin-feed spiral, when spiral external diameter during, preferable with three or four-start spiral greater than 500mm.Be contained in the puddler (6) on the shaft (7), its arrangement can have certain randomness, but shape is arranged better in the shape of a spiral, make and be arranged with certain rules, and, dust is discharged after be strengthening the axial pusher effect of puddler and quickening humidification, and puddler must tilt, and the incline direction mistake also can produce negative effect.Correct direction be along veer in the shape of a spiral (with screw(-type) feeder roughly the same) through experimental study, the ratio of the helical pitch of this helicoid and external diameter is 0.5-1, and is preferable with 2: 3.The angle of inclination of puddler is 10 °-30 °, preferable with 15 °-20 °, puddler is to the charging aperture direction material that inclines, push the effect in the center of circle at handlebar material radially, be applicable to the dust that general dust or caking property are stronger, tilt to have enhancing material to be pushed to the effect of barrel from the center of circle to the discharging opening direction, be applicable to the dust of hydrophily difference, between multi-head spiral (4) on the shaft (7) and puddler (6), the axial stirring vane of 2-4 sheet (5) is housed, its shape is the same with the design of angle and the design of known axial blade, here be that puddler (7) and axial stirring vane (5) are considered as a whole, so axially the angle of stirring vane just equals the helical angle of the helicoid of puddler (6) formation, its effect is that dust is blowed to discharging opening, near an end of discharging opening the 2-4 sheet is housed at shaft (7) and axially stirs short blade (9), its effect is with axially stirring vane (5) is opposite, be near the dry dust the discharging opening to be blown go back to mix tube middle part proceed humidification, to prevent that dry dust from escaping, the nozzle (11) that is contained in mix tube (8) top is the fan-shaped nozzle of angular injection, the direction of in Fig. 2, having represented the water that from nozzle, sprays, make the globule in cylindrical shell, form water curtain, under the bump of high speed rotating stirring rod, be dispersed into thinner water polo or become water smoke, can avoid straight nozzle to concentrate water spray and dust to form walk, nozzle can be contained in the top of mix tube (8), also can be contained in end face, when the dust treating capacity is big, institute's water requirement is also big, can all adorn nozzle at the top and the end face of mix tube (8), cylindrical shell shown in Figure 2 and shaft are contained on the base 15 of inclination, can accelerate effluxing of dust behind the humidification, cut down the consumption of energy, the nozzle (16) that is contained in mix tube (8) end face shown in Figure 2 is directly to spray fan-shaped nozzle, also can adopt the fan-shaped nozzle of angular injection, water is sprayed along the barrel curl, both can utilize water can accelerate powder and efflux, also can play certain flushing action barrel.

The discharging and the utilization of the dry dust removal system dry dust of industries such as the utility model can be widely used in electric power, controls gold, building materials.

Claims

1, a kind of dust humidifier, powder outlet (10) behind powder inlet (1), cylindrical shell (2), shaft (7), nozzle (11) and the humidification is arranged, it is characterized in that being equipped with on the shaft (7) multi-head spiral (4) axially stirring vane (5) and the shape puddler (6) arranging and tilt to install in the shape of a spiral, nozzle (11) is equipped with in above the mix tube (8) and/or end.

2, dust humidifier according to claim 1 is characterized in that cylindrical shell (2) and shaft (7) are to tilt to install, and the angle of inclination is 4 degree-12 degree.

3, dust humidifier according to claim 2, the angle of inclination that it is characterized in that cylindrical shell (2) and shaft (7) are 6 degree-8 degree.

4, dust humidifier according to claim 1 and 2, it is characterized in that the puddler (6) of shape arrangement in the shape of a spiral, its helical pitch is 0.5-1 with the ratio of external diameter, its angle of inclination is 10 degree-30 degree, its frequently tilted direction be to the inclination of charging aperture (1) direction, the powder of hydrophily difference is then tilted to discharging opening (10) direction.

5, dust humidifier according to claim 1 and 2, a number that it is characterized in that multi-head spiral (6) is 2-4.

6, dust humidifier according to claim 1 and 2, the nozzle (11) that it is characterized in that being contained in mix tube top is the fan nozzle of angular injection, and the nozzle (16) that is contained in mix tube end face can be that directly to spray fan nozzle also can be the fan nozzle of angular injection.

7, dust humidifier according to claim 1 and 2, it is characterized in that between multi-head spiral (4) on the shaft (7) and puddler (6), the axial stirring vane of 2-4 sheet (5) being housed, at a end 2-4 sheet is housed and axially stirs short blade (9) near discharging opening.

8, dust humidifier according to claim 7, the angle that it is characterized in that axial stirring vane (5) equals the helical angle of the helicoid that is made of puddler (6), the angle that axially stirs short blade (9) is identical with the angle of axial stirring vane (7), but direction is opposite.