CN103894344A

CN103894344A - Pulverized coal fiber separator

Info

Publication number: CN103894344A
Application number: CN201410124692.0A
Authority: CN
Inventors: 张小研; 毛智强; 江海宝
Original assignee: Wei Cheng (tianjin) Technology Co Ltd Shanghai Branch
Current assignee: Wei Cheng (tianjin) Technology Co Ltd Shanghai Branch
Priority date: 2014-03-31
Filing date: 2014-03-31
Publication date: 2014-07-02
Anticipated expiration: 2034-03-31
Also published as: CN103894344B

Abstract

The invention discloses a pulverized coal fiber separator which comprises a shell and a combing and filtering mechanism. The pulverized coal fiber separator is characterized in that the shell is composed of a pulverized coal pipe and a fiber pipe which are connected by a horizontal barrel, the pulverized coal pipe and the fiber pipe are connected with the barrel by an oblique cone of a crotch structure, a discharging port at the bottom of the shell is connected with the pulverized coal pipe and the fiber pipe, a filtering net of a drawer structure is arranged on the upper portions of the pulverized coal pipe and the fiber pipe, the combing and filtering mechanism is composed of a driving device and a thorn combing roller, the thorn combing roller is mounted in the barrel in a sleeved manner by two shaft seats arranged on the barrel, and the driving device is fixedly arranged outside the barrel by a support to be connected with the thorn combing roller. Compared with the prior art, the pulverized coal fiber separator has the advantages of being simple in structure, strong in fiber capturing capability, high in pulverized coal purifying efficiency, reliable in working and long in service life, and the filtering net is less prone to being blocked.

Description

A kind of coal fines fiber separator

Technical field

The present invention relates to bolter equipment, especially a kind of thorn and coal fines fiber separator of trapping of filter screen combed.

Background technology

In coal gasifying process, much technique needs first raw coal to be worn into coal dust, then sends into gasification furnace by burner and gasifies.Due to reasons such as raw coal and transport storages, in the coal dust grinding, be mixed with fiber different in size, easily block Pneumatic conveying pipeline or in burner place bonding, affect the operation of system long-term stability.In system, increase Celloco fractionator Celloco equipment, can effectively isolate fiber, improve coal dust purity.

At present, the comb filter structure of coal fines fiber separator generally all adopts the double-layer separating structure of comb thorn combing and grid screen.Grid is the circular sieve plate of combined type, waits piecemeal to form by 3～5.Comb thorn bar is strip member, arranges the comb thorn of needle-like towards upper surface length direction at interval of 3.5～4.5mm, comb thorn diameter 2～3mm, the long 50～75mm of comb thorn.Comb thorn bar and be radial arrangement, the comb thorn on comb thorn bar is towards 10～15 ° of arrangements of direction of rotation inclination.When the rotation of comb filter structure, first the comb thorn with 10 °～15 ° of angles of lead carries out combing to coal dust, and the long fibre combing out slides to comb thorn root along angle of lead, and grid sifts out short fiber and the velvet-like fiber that comb thorn does not clear out.Once the accumulation of fibers of comb filter structure comb filter, to set amount, is removed from clean-up port after shutdown.

There is following problem in the Celloco fractionator Celloco of prior art: equipment is vertical structure, and coal dust flows from top to bottom, and comb filter structure is for horizontally rotating, and combs thorn bar and is radial arrangement, is difficult to fully contact with coal dust, and purification efficiency is lower, in actual motion, because fiber is just wrapped in comb thorn, do not carry out separating treatment, comb thorn surface smoothing, the long fibre that combing goes out is sliding to after comb thorn root, due to the impact of coal dust and the multiple action of rotational structure, be easy to and comb thorn and separate, again sneak in coal dust, fiber is present on coal dust passage always, agglomerating fiber causes grid often to occur to stop up and affects coal dust flux, stopping state is easy to spread to whole cross section, above grid, pile with coal dust, kill drive unit, cause Whole Equipment to shut down, grid is paved with whole cross section, in the situation that generation obstruction cannot be rotated, only depend on an access door coal dust of all accumulations cannot be removed, increase greatly maintenance worker's labour intensity, the system that simultaneously affects is normally moved.

Summary of the invention

The object of the invention is a kind of coal fines fiber separator designing for the deficiencies in the prior art, adopt horizontal fiber comb filter structure and the housing that is provided with coal dust and fiber channel, the mobile direction rotation of the contrary coal dust of comb thorn row, can fully contact with coal dust, improve arresting efficiency, the fiber separating enters right fiber passage, coal dust enters left channel, effectively avoid the fiber having separated to mix with the secondary of coal dust, the probability that minimizing equipment stops up, prevent that coal dust from building bridge on filter screen, simple in structure, reliable operation, the purification efficiency of coal dust and the trapping ability of fiber are greatly improved, the service life of extension device.

The concrete technical scheme that realizes the object of the invention is: a kind of coal fines fiber separator, comprise housing and comb filter structure, case top is provided with charging aperture, housing bottom is provided with discharging opening, be characterized in that coal pipe and fibre pipe that described housing is connected by the cylindrical shell of accumbency form, coal pipe is connected with cylindrical shell by the beveled cone of bifurcation structure with fibre pipe, and the discharging opening of housing bottom is connected with coal pipe and fibre pipe, and the charging aperture of case top is arranged on cylindrical shell; Described coal pipe and fibre pipe top are provided with the filter screen of drawer-type structure, and filter screen and coal pipe and fibre pipe are slidably connected; Described comb filter structure is made up of drive unit and comb licker-in; Described comb licker-in is provided with 4～6 comb rows, and comb row is fixedly connected with comb licker-in along roller circumference uniform distribution, and comb licker-in is contained in cylindrical shell by the diaxon cover for seat being arranged on cylindrical shell; Described drive unit is fixedly installed on outside cylindrical shell by support, and drive unit is connected with comb licker-in by output shaft, drives comb licker-in in cylindrical shell, to rotate trapping fiber separation coal dust.

Described housing is provided with the nitrogen injection system of fiber injection tube and pulverized coal injection blowpipe composition, and fiber injection tube is arranged on cylindrical shell top and spout towards fibre pipe; Pulverized coal injection blowpipe be separately positioned on coal pipe and fibre pipe and spout towards filter screen.

Comb thorn length on described comb row is 300mm, and comb thorn spacing is 20mm.

On two bifurcated housings of described beveled cone, be respectively equipped with peep hole.

Described cylindrical shell is provided with access hole.

The present invention has the mobile direction rotation of the contrary coal dust of comb thorn row compared with prior art, comb thorn row fully contacts with coal dust, greatly improves arresting efficiency, prevents that coal dust from building bridge on filter screen, effectively avoid the fiber having separated to mix with the secondary of coal dust, filter screen is difficult for stopping up, and simple in structure, the trapping ability of coal dust fiber is strong, purification efficiency is high, operation, easy to maintenance, reliable operation, the service life of having improved equipment.

Brief description of the drawings

Fig. 1 is structural representation of the present invention;

Fig. 2 is the A-A cutaway view of Fig. 1;

Fig. 3 is comb licker-in structural representation;

Fig. 4 is Fig. 3 side view.

Fig. 5 is work schematic diagram of the present invention.

Detailed description of the invention

Consult accompanying drawing 1 ~ accompanying drawing 2, the present invention is made up of the comb filter structure 3 that is arranged on housing 2, and housing 2 tops are provided with charging aperture 1, and housing 2 bottoms are provided with discharging opening 9; Coal pipe 22 and fibre pipe 23 that described housing 2 is connected by the cylindrical shell 21 of accumbency form, coal pipe 22 is connected with cylindrical shell 21 by the beveled cone 24 of bifurcation structure with fibre pipe 23, the discharging opening 9 of housing 2 bottoms is connected with coal pipe 22 and fibre pipe 23, and the charging aperture 1 at housing 2 tops is arranged on cylindrical shell 21; Described coal pipe 22 and fibre pipe 23 tops are provided with the filter screen 8 of drawer-type structure, and filter screen 8 is slidably connected with coal pipe 22 and fibre pipe 23; Described comb filter structure 3 is made up of drive unit 31 and comb licker-in 32, and comb licker-in 32 is sleeved in cylindrical shell 21 by two axle beds 34 that are arranged on cylindrical shell 21; Described drive unit 31 is fixedly installed on outside cylindrical shell 21 by support 35, and drive unit 31 is connected with comb licker-in 32 by output shaft, drives comb licker-in 32 at the interior rotation trapping of cylindrical shell 21 fiber separation coal dust.Described housing 2 is provided with the nitrogen injection system that fiber injection tube 5 and pulverized coal injection blowpipe 4 form, and fiber injection tube 5 is fixedly installed on cylindrical shell 21 tops and the vertically fibre pipe 23 under comb licker-in 32 of spout; Pulverized coal injection blowpipe 4 be fixedly installed on respectively on coal pipe 22 and fibre pipe 23 and spout towards filter screen 8; Described cylindrical shell 21 is provided with access hole 6; On two bifurcated housings of described beveled cone 24, be respectively equipped with peep hole 7, the wallboard of beveled cone 24 and horizontal plane angle are not less than 60 °, make housing 2 there is no dead angle, avoid coal dust to pile up.

Consult accompanying drawing 3 ~ accompanying drawing 4, described comb licker-in 32 is provided with 4～6 comb rows 33, and comb row 33 is fixedly connected with comb licker-in 32 along roller circumference uniform distribution, and the comb thorn length on comb row 32 is 300mm, and comb thorn spacing is 20mm.

Consult accompanying drawing 5, the present invention works like this: drive unit 31 drives comb licker-in 32 to turn clockwise with 30～40r/min speed by reducing gear, and comb row 33 is the mobile direction rotation of contrary coal dust, can fully contact with coal dust, improves arresting efficiency.Coal dust enters cylindrical shell 21 by charging aperture 1 and drops on the comb licker-in 32 of rotation, when comb row 33 rotation, form intensive broach movement locus, comb thorn on comb row 33 is fully contacted the Filament-wound Machine trapping in coal dust with coal dust, and the comb of rotation row 33 can break up the coal dust that becomes piece simultaneously.Comb row 33 is by the fiber separation in coal dust, coal dust after purification falls into the coal pipe 22 in left side, when comb row 33 forwards to behind right side, under the nitrogen injection airflow function of fiber injection tube 5, the fiber of comb row 33 trappings is fallen into the fibre pipe 23 on right side, by filter screen 8, fiber is tackled and is temporarily stored in fibre pipe 23, a small amount of coal dust carrying with fiber is fallen back to the discharging opening 9 of housing 2 bottoms by fibre pipe 23 by filter screen 8.The pulverized coal injection blowpipe 4 that filter screen 8 belows arrange can prevent the coal dust accumulation of building bridge on filter screen 8, and filter screen 8 adopts drawer type quick-opening structure, finds to pile up on filter screen 8 fiber when more by peep hole 7, can open drawer filter screen 8 is cleared up.

More than just the present invention is further illustrated, and not in order to limit this patent, all is the present invention's equivalence enforcement, within all should being contained in the claim scope of this patent.

Claims

1. a coal fines fiber separator, comprise housing and comb filter structure, case top is provided with charging aperture, its bottom is provided with discharging opening, it is characterized in that coal pipe and fibre pipe that described housing is connected by the cylindrical shell of accumbency form, coal pipe is connected with cylindrical shell by the beveled cone of bifurcation structure with fibre pipe, and the discharging opening of housing bottom is connected with coal pipe and fibre pipe, and the charging aperture of case top is arranged on cylindrical shell; Described coal pipe and fibre pipe top are provided with the filter screen of drawer-type structure, and filter screen and coal pipe and fibre pipe are slidably connected; Described comb filter structure is made up of drive unit and comb licker-in; Described comb licker-in is provided with 4～6 comb rows, and comb row is fixedly connected with comb licker-in along roller circumference uniform distribution, and comb licker-in is contained in cylindrical shell by the diaxon cover for seat being arranged on cylindrical shell; Described drive unit is fixedly installed on outside cylindrical shell by support, and drive unit is connected with comb licker-in by output shaft, drives comb licker-in in cylindrical shell, to rotate trapping fiber separation coal dust.

2. coal fines fiber separator according to claim 1, is characterized in that described housing is provided with the nitrogen injection system of fiber injection tube and pulverized coal injection blowpipe composition, and fiber injection tube is arranged on cylindrical shell top and spout towards fibre pipe; Pulverized coal injection blowpipe be separately positioned on coal pipe and fibre pipe and spout towards filter screen.

3. coal fines fiber separator according to claim 1, is characterized in that the comb thorn length on described comb row is 300mm, and comb thorn spacing is 20mm.

4. coal fines fiber separator according to claim 1, is characterized in that being respectively equipped with peep hole on two bifurcated housings of described beveled cone.

5. coal fines fiber separator according to claim 1, is characterized in that described cylindrical shell is provided with access hole.