CN201454674U

CN201454674U - Rough coal slurry liquid-solid fluidization jigger

Info

Publication number: CN201454674U
Application number: CN200920092086XU
Authority: CN
Inventors: 焦红光; 惠兵; 王世博; 周虎
Original assignee: Henan University of Technology
Current assignee: Henan University of Technology
Priority date: 2009-07-31
Filing date: 2009-07-31
Publication date: 2010-05-12
Anticipated expiration: 2019-07-31

Abstract

A rough coal slurry liquid-solid fluidization jigger comprises a jigger machine body (16), a feeding well (1), a bottom flow collecting cone (11), a fine coal overflow collecting groove (5) and a control system, wherein the feeding well (1) is arranged on one side of the upper portion of the jigger machine body, the bottom flow collecting cone (11) is arranged on the bottom portion of the jigger machine body, and the fine coal overflow collecting groove (5) is arranged on the upper portion of the jigger machine body. The rough coal slurry liquid-solid fluidization jigger is characterized in that an ultrasonic generator (2) is arranged below a feeding opening of the feeding well (1), a plurality of inclined pipes (4) are uniformly distributed on the upper portion of an inner cavity of the jigger machine body, lower pipe openings of the inclined pipes (4) are communicated with the inner cavity of the jigger machine body, upper pipe openings of the inclined pipes are communicated with the fine coal overflow collecting groove (5), a pipe network type water flow distributor is laid inside a cavity of a combined portion of the jigger machine body (16) and the bottom flow collecting cone (11) in a horizontal arrangement form, and an impulse device used for generating impulse water flows is arranged on a lateral wall of the jigger machine body.

Description

Coarse slime liquid-solid fluidization jigging machine

Technical field

The utility model relates to coal preparation technology, relates to a kind of coarse slime liquid-solid fluidization jigging machine specifically.

Background technology

Along with the raising of mining mechanization degree and " poor, thin, assorted " day by day of coal resources change, the coarse slime content in the raw coal is more and more many, and traditional coal preparation technique also becomes more meticulous day by day.China is in from coal separation big country to coal separation power transition process as the big coal production of the first in the world country of consumption, and the sorting of current coarse slime is one of focus of coal preparation technology concern.Australia adopted at first in 1997 and disturbs the bed jigging machine that coarse slime is handled.China is since introducing this technology at the beginning of 21 century, because this type of disturbs the bed jigging machine only to have one of ascending current flow velocity to regulate parameter, divide in the favored area fluidised form single, expose problems in actual applications, as: ature of coal bad adaptability, treating capacity is little, separating effect is relatively poor etc.

Summary of the invention

The purpose of this utility model is just at existing weak point in the above-mentioned prior art and a kind of coarse slime liquid-solid fluidization jigging machine that multiple heterogeneity coarse slime is efficiently separated can realized of development and Design.

The purpose of this utility model can realize by following technique measures:

The utility model is that basic design philosophy is in conjunction with the shallow layer settling principle, adopts fluctuating flow to strengthen hindered falling sorting effect, and concrete technical measures are as follows:

Coarse slime liquid-solid fluidization jigging machine of the present utility model comprises jigging lathe body, be installed in the pan feeding well of jigging lathe body top one side, be positioned at jigging lathe body bottom the underflow collection cone, be arranged on the cleaned coal overflow feeder and the control system on jigging lathe body top; The feeding mouth below of described pan feeding well is provided with supersonic generator; Top at jigging lathe intracoelomic cavity is provided with some tipping tubes in uniform mode, the intracavity inter-connection of the lower nozzle of described tipping tube and jigging lathe body, and its upper orifice is connected with cleaned coal overflow feeder; In the cavity of jigging lathe body and underflow collection cone joint portion, be equipped with the ductwork type water distributor in the mode of being horizontally disposed with; One sidewall of jigging lathe body is provided with the palsating equipment of the fluctuating flow that is used to produce.

Be provided with in the inner chamber of the jigging lathe body of the utility model below described pan feeding well discharging opening and be used for the pan feeding plate washer of material to the dispersion of inner chamber middle part, this material feeding baffle is consistent with jigging lathe body width, utilize draw-in groove to be fixed on the pan feeding side of sorting bed body, and extend downward the middle part of jigging lathe body.

Palsating equipment described in the utility model comprises that the annular that the employing polytetrafluoroethylmaterial material that is installed in jigging lathe body one lower sidewall is made agitates barrier film, with agitate the dish of agitating that barrier film combines, and be used for the motion of drive drum Moving plate provide the transmission case of power source by motor; Described ductwork type water distributor comprises the water bag of two tubular structures that be arranged in parallel and some dispensing branch that connect the water parlor of two tubular structures that be arranged in parallel with equal mode for cloth, be processed with the hole for water spraying of several injection waters that make progress on the tube wall of described dispensing branch, described water bag is connected with feed pipe by tube connector.

Control system described in the utility model comprises the pressure sensor that is installed on the jigging lathe body sidewall, the controller that links to each other with pressure sensor by the mode that is electrically connected, and the unlatching controlling organization of the underflow valve that is installed in tail coal collection cone discharge gate place that links to each other with controller of the mode by electrical connection.

The utility model is first than having following beneficial effect with prior art:

1. thereby the fluctuating flow that produces of barrier film can make effectively that bed is loose to separate the particle layering; make the particle of different densities obtain acceleration, retarding efffect simultaneously; strengthen the leading role of density to separating effect; significantly improve separating effect; make jigging machine when material size wider range, still can obtain good separating effect (being similar to the operation of not classification jigging); also help simultaneously the discharging of product after the sorting, increase the disposal ability of FU area.

2. hyperacoustic introducing impels in the coal slurry matrix of coal and coal measures mineral intergrowth to realize dissociating of coal grain and spoil along its boundary breaking, has changed the physicochemical property on coal grain surface simultaneously, improves separating effect.

3. the tipping tube that adds based on the shallow layer settling principle has shortened the distance of particles settling, and every pipe inside all forms a little settling zone simultaneously, and its water flow inside is beneficial to the sedimentation that is mingled with spoil in the come-up cleaned coal near laminar flow, reduces its pollution to cleaned coal.

4. monolateral pan feeding can increase the treating capacity of equipment, and material feeding baffle has prevented that tiny heavy particle from sneaking into cleaned coal and influencing quality of cleaned coal.

5. hindered falling grading principle, jigging sorting and shallow layer settling are organically combined, improved the treating capacity and the sharpness of separation of equipment.

In sum, screening installation of the present utility model disturbs the bed jigging machine to compare with tradition, not only has good sharpness of separation and usefulness, but also can increase the treating capacity of equipment, adapts to ature of coal preferably and changes; Remedied traditional deficiency of disturbing the bed jigging machine.

Description of drawings

Fig. 1 is an overall schematic of the present utility model.

Fig. 2 is the schematic top plan view of Fig. 1.

Fig. 3 is the diaphragm apparatus schematic diagram.

Fig. 4 is the water distributor structural representation.

Sequence number among the figure: 1. pan feeding well 2. supersonic generators 3. baffle plates 4. tipping tubes 5. cleaned coal feeders 6. motors 7. transmission cases 8. agitate barrier film 9. feed pipes 10. dispensing branch 11. underflow collection cones 12. underflow valves 13. controllers 14. water bags 15. pressure sensors 16. jigging lathe bodies 17. to agitate dish.

The specific embodiment

The utility model is further described below with reference to embodiment (accompanying drawing):

As shown in Figure 1, coarse slime liquid-solid fluidization jigging machine of the present utility model comprise jigging lathe body 16, be installed in jigging lathe body top one side pan feeding well 1, be positioned at jigging lathe body bottom underflow collection cone 11, be arranged on the cleaned coal overflow feeder 5 and the control system on jigging lathe body top; The feeding mouth below of described pan feeding well 1 is provided with supersonic generator 2; Be provided with in the inner chamber of the jigging lathe body below described pan feeding well 1 discharging opening and be used for the material feeding baffle 3 of material to the dispersion of inner chamber middle part, this material feeding baffle 3 is consistent with jigging lathe body width, utilize draw-in groove to be fixed on the pan feeding side of sorting bed body, and extend downward the middle part of jigging lathe body; Top at jigging lathe intracoelomic cavity is provided with some tipping tubes 4 in uniform mode, the intracavity inter-connection of the lower nozzle of described tipping tube and jigging lathe body, its upper orifice be connected with cleaned coal overflow feeder 5 (referring to Fig. 1, Fig. 2); In the cavity of jigging lathe body 16 and underflow collection cone 11 joint portions, be equipped with the ductwork type water distributor in the mode of being horizontally disposed with; One sidewall of jigging lathe body is provided with the palsating equipment of the fluctuating flow that is used to produce, this palsating equipment comprises that the annular that the employing polytetrafluoroethylmaterial material that is installed in jigging lathe body one lower sidewall is made agitates barrier film 8, with agitate that barrier film 8 combines agitate dish 17, and be used for the motion of drive drum Moving plate provide the transmission case 7 (referring to Fig. 2, Fig. 3) of power source by motor 6; Described control system comprises the pressure sensor 15 that is installed on the jigging lathe body sidewall, the controller 13 that links to each other with pressure sensor by the mode that is electrically connected, and the unlatching controlling organization of the underflow valve 12 that is installed in tail coal collection cone 11 discharge gate places that links to each other with controller 13 of the mode by electrical connection.

As Fig. 1, shown in Figure 4, described ductwork type water distributor comprises the water bag 14 of two tubular structures that be arranged in parallel and the some dispensing branch 10 that connect the water parlor of two tubular structures that be arranged in parallel with equal mode for cloth, be processed with the hole for water spraying of several injection waters that make progress on the tube wall of described dispensing branch, described water bag 14 is connected with feed pipe 9 by tube connector.

Operation principle of the present utility model is as follows: when equipment is worked, ore pulp is tangentially fed by pan feeding well 1, after ultrasonic generator 2 is handled, spread out along baffle plate 3 to sorting bed body middle part, meet to form and disturb bed (fluidization bed) with ascending current (squeeze into the jigging machine bottom by water pump and join the disturbance current that arm 10 produces) by the ductwork type fluid, solid particle is done the hindered falling motion in jigging machine, when reaching stable state, density is lower than disturbs the particle of bed averag density to float, by tipping tube 4, enter overflow, bigger heavy particle then sinks under the laminar flow environment that tipping tube 4 provides along tipping tube 4 once more to disturbing bed to carry out the secondary sorting in the floating-upward process, overflow is then collected by cleaned coal feeder 5, after dehydration, obtain qualified cleaned coal, density just penetrates bed greater than the particle that disturbs the bed averag density and enters hypostasis and flow to underflow collection cone 11, is discharged by underflow valve 12; In the assorting room, drive transmission case 7 by motor 6 gyration is converted to rectilinear motion, drive and agitate dish 17 and shareholder's barrier film 8 reciprocating, cause the density effect that produces the fluctuating flow reinforcing particle in the jig body, to improve separating effect; Hypostasis 11 is collected at the bottom of by the underflow collection cone, realize discharging by control system, that is: the barometric gradient variable signal that disturbs bed sections to produce is gathered by pressure sensor 15, after via controller 13 is handled signal then, control underflow valve 12 constantly opens and closes, make and disturb bed to be in a stable state, guarantee the continuous of assorting room with this.

Claims

1. coarse slime liquid-solid fluidization jigging machine, described jigging machine comprises jigging lathe body (16), be installed in the pan feeding well (1) of jigging lathe body top one side, be positioned at jigging lathe body bottom underflow collection cone (11), be arranged on the cleaned coal overflow feeder (5) and the control system on jigging lathe body top, it is characterized in that: the feeding mouth below of described pan feeding well (1) is provided with supersonic generator (2); Top at jigging lathe intracoelomic cavity is provided with some tipping tubes (4) in uniform mode, the intracavity inter-connection of the lower nozzle of described tipping tube and jigging lathe body, and its upper orifice is connected with cleaned coal overflow feeder (5); In the cavity of jigging lathe body (16) and underflow collection cone (11) joint portion, be equipped with the ductwork type water distributor in the mode of being horizontally disposed with; One sidewall of jigging lathe body is provided with the palsating equipment of the fluctuating flow that is used to produce.

2. coarse slime liquid-solid fluidization jigging machine according to claim 1, it is characterized in that: be provided with the material feeding baffle (3) that is used for material dispersion in the middle part of inner chamber in the inner chamber of the jigging lathe body below described pan feeding well (1) discharging opening, this material feeding baffle (3) is consistent with jigging lathe body width, utilize draw-in groove to be fixed on the pan feeding side of sorting bed body, and extend downward the middle part of jigging lathe body.

3. coarse slime liquid-solid fluidization jigging machine according to claim 1, it is characterized in that: described palsating equipment comprises that the annular that the employing polytetrafluoroethylmaterial material that is installed in jigging lathe body one lower sidewall is made agitates barrier film (8), with agitate that barrier film (8) combines agitate dish (17), and be used for the motion of drive drum Moving plate provide the transmission case (7) of power source by motor (6).

4. coarse slime liquid-solid fluidization jigging machine according to claim 1, it is characterized in that: described ductwork type water distributor comprises the water bag (14) of two tubular structures that be arranged in parallel and the some dispensing branch (10) that connect the water parlor of two tubular structures that be arranged in parallel with equal mode for cloth, be processed with the hole for water spraying of several injection waters that make progress on the tube wall of described dispensing branch, described water bag (14) is connected with feed pipe (9) by tube connector.

5. coarse slime liquid-solid fluidization jigging machine according to claim 1, it is characterized in that: described control system comprises the pressure sensor (15) that is installed on the jigging lathe body sidewall, the controller (13) that links to each other with pressure sensor by the mode that is electrically connected, and the unlatching controlling organization of the underflow valve (12) that is installed in tail coal collection cone (11) discharge gate place that links to each other with controller (13) of the mode by electrical connection.