CN202179876U

CN202179876U - Mechanical defoamer

Info

Publication number: CN202179876U
Application number: CN2011202817220U
Authority: CN
Inventors: 姚同业; 江波; 刘文燕
Original assignee: WENRUI MACHINERY (SHANDONG) CO Ltd
Current assignee: WENRUI MACHINERY (SHANDONG) CO Ltd
Priority date: 2011-08-04
Filing date: 2011-08-04
Publication date: 2012-04-04
Anticipated expiration: 2021-08-04

Abstract

The utility model discloses a mechanical defoamer which comprises an inner cylinder body and an outer cylinder body which are sleeved together, wherein an inner cavity chamber is arranged in the inner cylinder body; a ring-shaped cavity chamber is arranged between the inner cylinder body and the outer cylinder body; a plurality of water through-holes for communicating the inner cavity chamber and the ring-shaped cavity chamber are formed on the inner cylinder body; a black liquid tank arranged at the lower end of the outer cylinder body is communicated with the inner cavity chamber; and a rotor arranged in the inner cavity chamber is in transmission joint with a power driving device. The mechanical defoamer has the advantages of simple structure and good defoaming effect, and is simple to mount and arrange; besides, the inner cylinder body can be flushed through three flushing water inlets, thereby preventing fine fiber from blocking an orifice plate; and the defoaming ability is great, so that the mechanical defoamer has a wide application prospect in the papermaking industry.

Description

A kind of mechanical defoaming device

Technical field

The utility model relates to a kind of defoaming device, relates to a kind of mechanical defoaming device that a large amount of black liquor foams that produce in the slurry washing process are eliminated, broken up that is applicable to specifically, belongs to the papermaking equipment technical field.

Background technology

At present, the elimination of pulping and paper-making industry, the equipment of breaing up the black liquor foam and method mainly are employed in and add antifoaming agent in the black liquor or adopt old-fashioned defoamer, are employed in to add antifoaming agent in the black liquor, have shortcomings such as cost height, contaminated environment; Adopt old-fashioned defoamer, because power of motor is little, the foam cavity volume that disappears is little, and diameter of outlet is little; Therefore root diameter is unreasonable, causes that defoaming effect is poor, the motor easy burn-out; Replacing bearing difficulty, service life is short, influences ordinary production.

The utility model content

Deficiencies such as the problem that the utility model will solve is to have froth breaking equipment weak effect, motor easy burn-out now in order to overcome, and changes the bearing difficulty, and service life is short provide a kind of mechanical defoaming device that not only can improve defoaming effect but also compact conformation, long service life.

In order to address the above problem, the technical scheme that the utility model adopts is:

A kind of mechanical defoaming device comprises the inner barrel and the outer cylinder body that are sleeved on together, has inner cavity chamber in the said inner barrel, has annular compartment between said inner barrel and the outer cylinder body, and inner barrel is provided with several limbers with inner cavity chamber and annular compartment connection;

The lower end of said outer cylinder body is provided with the black liquor groove, and said black liquor groove is communicated with inner cavity chamber, is provided with rotor in the inner cavity chamber, and said rotor and Power Drive Unit are in transmission connection.

Below be the further improvement of the utility model to such scheme:

The coaxial setting of said inner barrel and outer cylinder body.

Further improve:

Said Power Drive Unit comprises motor, is connected with spindle through shaft coupling between said motor and the rotor.

Further improve:

Said rotor comprises the circular sieve plate that is fixedly connected with the lower end of main shaft, and said circular sieve plate is provided with several through holes, and the downside of circular sieve plate is fixedly connected with several lower blades of arranging along the tangential direction of main shaft.

Further improve:

The upside of said circular sieve plate is fixedly connected with several blades of arranging along the tangential direction of main shaft.

Further improve:

The black liquor groove is provided with the foam inlet that is communicated with inner cavity chamber, and the diameter of said foam inlet helps foam and rises rapidly greater than the diameter of inner cavity chamber, under the centrifugal action of high speed rotor rotated, is adsorbed, breaks up.

Further improve:

The bottom of said outer cylinder body is provided with the leakage fluid dram that is communicated with annular compartment, and said leakage fluid dram is communicated with the black liquor groove through discharging tube.

Further improve:

The annular oriffice that to be connected with a cross section between the upper end of said inner barrel and the upper end of outer cylinder body be taper, said annular oriffice is provided with several limbers, has the taper chamber that is communicated with inner cavity chamber in the annular oriffice.

Further improve:

The upper end of said outer cylinder body is connected with loam cake through flange seal, covers on said and is provided with the blast pipe that is communicated with the taper chamber, and blast pipe is provided with exhaust outlet;

Be sealedly and fixedly connected through annular stiffener between the lower end of said inner barrel and the lower end of outer cylinder body.

Further improve:

Outer cylinder body is provided with the water inlet pipe that is communicated with annular compartment of three tangential directions, with through three flushing water imports, inner barrel is washed, and prevents that fiber fines from stopping up orifice plate.

During work, the rotation of motor-driven rotor high-speed is under centrifugal action; Foam rises rapidly, and lower blade is most of foam turn, makes itself and inner barrel that fierce collision take place and breaks; Effectively break up foam; Gas after the lather collapse is discharged through the through hole on the circular sieve plate, discharges from exhaust outlet through blast pipe, and the part foam is smashed by blade;

The limbers of black liquor after the lather collapse on inner barrel and annular oriffice gets into annular compartment, and is back in the black liquor groove through leakage fluid dram and discharging tube, and black liquor is transported to next workshop section, is convenient to chemicals and reclaims, and reaches the target of energy-saving and emission-reduction.

The utility model compact conformation, defoaming effect is good, and mounting arrangements is simple, and the utility model can also pass through three flushing water imports, and inner barrel is washed, and prevents that fiber fines from stopping up orifice plate.The froth breaking ability is big, in paper industry application prospect is widely arranged.

Below in conjunction with accompanying drawing and embodiment the utility model is further specified.

Description of drawings

Accompanying drawing 1 is the structural representation of the embodiment of the invention;

Accompanying drawing 2 is the vertical view in the accompanying drawing 1;

Accompanying drawing 3 is the structural representation of embodiment of the invention rotor;

Accompanying drawing 4 is the vertical view of accompanying drawing 3.

Among the figure: the 1-exhaust outlet; The 2-support; The 3-motor; The 4-shaft coupling; The 5-main shaft; The 6-bearing housing; The 7-loam cake; The 8-annular oriffice; 9-taper chamber; The 10-rotor; The 11-outer cylinder body; The 12-annular compartment; The 13-inner barrel; 14-inner cavity chamber; 15-annular stiffener; The 16-foam inlet; The 17-leakage fluid dram; The 18-water inlet pipe; The 19-blast pipe; The 20-ball valve; The 21-blade; The circular sieve plate of 22-; The 23-lower blade; The 24-through hole; The 25-flange; The 26-discharging tube; 27-black liquor groove; The 28-blade; The 29-axle sleeve.

The specific embodiment

Embodiment, like Fig. 1, shown in Figure 2, a kind of mechanical defoaming device comprises the inner barrel 13 and outer cylinder body 11 that are sleeved on together, said inner barrel 13 and outer cylinder body 11 coaxial settings.

Have inner cavity chamber 14 in the said inner barrel 13, have annular compartment 12 between said inner barrel 13 and the outer cylinder body 11, inner barrel 13 is provided with several limbers, and said limbers is communicated with inner cavity chamber 14 with annular compartment 12.

The annular oriffice 8 that to be connected with a cross section between the upper end of the upper end of said inner barrel 13 and outer cylinder body 11 be taper, said annular oriffice 8 is provided with several limbers, has the taper chamber 9 that is communicated with inner cavity chamber 14 in the annular oriffice 8.

Be sealedly and fixedly connected through annular stiffener 15 between the lower end of the lower end of said inner barrel 13 and outer cylinder body 11.

The upper end of said outer cylinder body 11 is sealedly connected with loam cake 7 through flange 25, and said loam cake 7 is provided with the blast pipe 19 that is communicated with taper chamber 9, and blast pipe 19 is provided with exhaust outlet 1.

The lower end of said outer cylinder body 11 is provided with black liquor groove 27; Said black liquor groove 27 is provided with foam inlet 16; Said foam inlet 16 is communicated with inner cavity chamber 14, and the diameter of said foam inlet 16 helps foam and rises rapidly greater than the diameter of inner cavity chamber 14; Under the centrifugal action of high speed rotor rotated, be adsorbed, break up.

The bottom of said outer cylinder body 11 is provided with leakage fluid dram 17, and a wherein end of said leakage fluid dram 17 is communicated with annular compartment 12, and the other end is communicated with black liquor groove 27 through discharging tube 26.

Outer cylinder body 11 is provided with the water inlet pipe 18 that is communicated with annular compartment 12 of three tangential directions, all external ball valve 20.

Be provided with rotor 10 in the inner cavity chamber 14, said rotor 10 is in transmission connection with Power Drive Unit.

Said Power Drive Unit comprises motor 3, and said motor 3 is fixedly supported on the loam cake 7 through support 2, is in transmission connection through shaft coupling 4 and main shaft 5 between said motor 3 and the rotor 10.

Said support 2 is provided with and is used for the bearing housing 6 of supports main shaft 5.

Like Fig. 3, shown in Figure 4; Said rotor 10 comprises the circular sieve plate 22 that is fixedly connected with the lower end of main shaft 5; Said circular sieve plate 22 is provided with several through holes 24; The upside of said circular sieve plate 22 is fixedly connected with four blades of arranging along the tangential direction of main shaft 5 21, and the downside of circular sieve plate 22 is fixedly connected with four lower blades of arranging along the tangential direction of main shaft 5 23.

Be fixedly connected through axle sleeve 29 between the lower end of circular sieve plate 22 and main shaft 5.

During work, motor 3 drives rotor 10 rotation at a high speed, under centrifugal action; Foam rises rapidly, and lower blade 23 is most of foam turn, makes itself and inner barrel 13 that fierce collision take place and breaks; Effectively break up foam; Gas after the lather collapse is discharged through the through hole on the circular sieve plate 22 24, discharges from exhaust outlet 1 through blast pipe 19, and the part foam is smashed by blade 28;

The limbers of black liquor after the lather collapse on inner barrel 13 and taper orifice plate 8 gets into annular compartment 12, and is back in the black liquor groove 27 through leakage fluid dram 17 and discharging tube 26.

Black liquor is transported to next workshop section, is convenient to chemicals and reclaims, and reaches the target of energy-saving and emission-reduction.

Claims

1. a mechanical defoaming device comprises the inner barrel (13) and the outer cylinder body (11) that are sleeved on together, it is characterized in that:

Have inner cavity chamber (14) in the said inner barrel (13), have annular compartment (12) between said inner barrel (13) and the outer cylinder body (11), inner barrel (13) is provided with several limbers with inner cavity chamber (14) and annular compartment (12) connection;

The lower end of said outer cylinder body (11) is provided with black liquor groove (27), and said black liquor groove (27) is communicated with inner cavity chamber (14), is provided with rotor (10) in the inner cavity chamber (14), and said rotor (10) is in transmission connection with Power Drive Unit.

2. a kind of mechanical defoaming device according to claim 1 is characterized in that: said inner barrel (13) and the coaxial setting of outer cylinder body (11).

3. a kind of mechanical defoaming device according to claim 1 and 2 is characterized in that: said Power Drive Unit comprises motor (3), is in transmission connection through shaft coupling (4) and main shaft (5) between said motor (3) and the rotor (10).

4. a kind of mechanical defoaming device according to claim 3; It is characterized in that: said rotor (10) comprises the circular sieve plate (22) that is fixedly connected with the lower end of main shaft (5); Said circular sieve plate (22) is provided with several through holes (24), and the downside of circular sieve plate (22) is fixedly connected with several lower blades of arranging along the tangential direction of main shaft (5) (23).

5. a kind of mechanical defoaming device according to claim 4 is characterized in that: the upside of said circular sieve plate (22) is fixedly connected with several blades of arranging along the tangential direction of main shaft (5) (28).

6. a kind of mechanical defoaming device according to claim 4 is characterized in that:

Black liquor groove (27) is provided with the foam inlet (16) that is communicated with inner cavity chamber (14), and the diameter of said foam inlet (16) is greater than the diameter of inner cavity chamber (14).

7. a kind of mechanical defoaming device according to claim 6; It is characterized in that: the bottom of said outer cylinder body (11) is provided with the leakage fluid dram (17) that is communicated with annular compartment (12), and said leakage fluid dram (17) is communicated with black liquor groove (27) through discharging tube (26).

8. a kind of mechanical defoaming device according to claim 7 is characterized in that:

The annular oriffice (8) that to be connected with a cross section between the upper end of the upper end of said inner barrel (13) and outer cylinder body (11) be taper; Said annular oriffice (8) is provided with several limbers, has the taper chamber (9) that is communicated with inner cavity chamber (14) in the annular oriffice (8).

9. a kind of mechanical defoaming device according to claim 8; It is characterized in that: the upper end of said outer cylinder body (11) is sealedly connected with loam cake (7); Said loam cake (7) is provided with the blast pipe (19) that is communicated with taper chamber (9), and blast pipe (19) is provided with exhaust outlet (1);

Be sealedly and fixedly connected through annular stiffener (15) between the lower end of the lower end of said inner barrel (13) and outer cylinder body (11).

10. a kind of mechanical defoaming device according to claim 9 is characterized in that: outer cylinder body (11) is provided with the water inlet pipe (18) that is communicated with annular compartment (12) of three tangential directions.