CN101648160A

CN101648160A - Dry flyash recoverer

Info

Publication number: CN101648160A
Application number: CN200810012767A
Authority: CN
Inventors: 石彪; 刘长喻; 杨大力; 赵琛
Original assignee: Fushun Sirui Mechanical & Electrical Equipment Co Ltd
Current assignee: Fushun Sirui Mechanical & Electrical Equipment Co Ltd
Priority date: 2008-08-13
Filing date: 2008-08-13
Publication date: 2010-02-17
Anticipated expiration: 2028-08-13
Also published as: CN101648160B

Abstract

The invention discloses a dry flyash recoverer, which comprises an upper tank body, a lower tank body, a motor and a transmission mechanism; a guiding roller with spiral blades and a spiral impeller which are driven to rotate by the motor are respectively arranged in the upper tank body and the lower tank body; an upper part of a feed area, a lower part of an iron unloading area and a lower part of a separation area of the upper tank body are respectively provided with a raw material inlet, an iron ore fine outlet and an ash falling port communicated with the lower tank body, and the lower part of the lower tank body is provided with a magnetite powder outlet; and a circular magnetic system and a semi-circular magnetic system which are fixedly connected with a support shaft are respectively distributed on the inner wall of the guiding roller positioned in the separation area and the upper inner wall of the guiding roller in the iron unloading area. The dry flyash recoverer adopts dry recovery to avoid the waste of water resource, can independently complete the whole recovering process, simplifies working procedures, has convenient operation and reduces energy consumption. Simultaneously, dry flyash recoverer adopts the structures such as the guiding rollers, the circular magnetic system and the like to solve the problem of impurity entrainment, and the total iron grade and therecovery rate of the recovered iron ore fines are respectively improved to over 53 percent and over 60 percent.

Description

Dry flyash recoverer

One, technical field

The invention belongs to the magnetic separator technical field, be specifically related to a kind of dry flyash recoverer that is used for the ferromagnetic materials of flyash is carried out sorting.

Two, background technology

Along with China's rapid economy development, the continuing to increase of raw material demand, people constantly seek raw-material recycling method.Studies show that, contain a certain amount of in the flyash with Fe ₂O ₃, Fe ₃O ₄The ferromagnetic materials that exists with the ferrosilite form reclaims, utilizes wherein ferromagnetic materials, for solving present raw material problem in short supply, has very wide prospect.Flyash has become a kind of novel mineral resources for these reasons, and more and more is subject to people's attention.At present, for the recovery of the ferromagnetic material in the flyash, mainly adopt wet cleaning process, this method is to utilize mine tailing to reclaim machine earlier flyash is carried out preliminary election, and then carries out sorting with weak magnetic wet magnetic separator.There is following deficiency in this method: 1, owing to adopt two equipment integrations of operation, whole assorting room is complex procedures not only, and power consumption is bigger.2, owing to adopt wet magnetic separator to carry out sorting, not only cause the serious waste of water resource, and can't use at all, limited its scope of application in the water-deficient area.3, in the equipment operation process, impurity carries that phenomenon is serious secretly, and the full iron grade and the rate of recovery of the Iron Ore Powder of recovery are lower, all do not reach 50%, and particularly the rate of recovery is 39.17% only, and recovering effect is relatively poor.

Three, summary of the invention

The purpose of this invention is to provide that a kind of operation is simple, energy consumption is low, water not, the full iron grade of recovery and the higher dry flyash recoverer of the rate of recovery.

For achieving the above object, the technical solution used in the present invention is: comprise casing, motor and the transmission mechanism be made up of upper and lower casing; Be characterized in: be separately installed with the guide cylinder and the helical runner that are rotated by motor-driven in upper and lower casing, the outside of guide cylinder is provided with helical blade; Upper box is by feed zone, Disengagement zone and unload the iron district and form successively, feed zone top, unloads the ash port that Tie Qu bottom and bottom, Disengagement zone are respectively equipped with material inlet, Iron Ore Powder outlet and communicate with lower box, and the bottom of lower box is provided with the magnetic breeze and exports; Along the inwall of the guide cylinder that is positioned at the Disengagement zone and be positioned at the upper inside wall of the guide cylinder that unloads the iron district, be furnished with the circular magnetic system and the semicircle magnetic system of fixedlying connected respectively with back shaft.

Adopt said structure, the present invention has following advantage:

1, the present invention adopts dry type to reclaim, and can directly reclaim Iron Ore Powder from the dry powder coal ash, and water has not only been avoided the waste of water resource, and can use in the water-deficient area yet, and the scope of application is extensive.

2, the present invention can independently finish the whole recovery process, compares with existing wet cleaning process, has not only simplified operation, and easy to operate, has also greatly reduced energy consumption, has saved the energy.

3, structures such as guide cylinder and circular magnetic system have been adopted in Disengagement zone of the present invention.During recovery, ferromagnetic materials in the flyash can be through repeatedly overturning, adsorbing, thoroughly solved impurity entrainment problem in the equipment operation process, the full iron grade and the rate of recovery of the Iron Ore Powder of recovery are increased substantially, the full iron grade and the rate of recovery are by 45.22% and 39.17% of wet cleaning process, bring up to more than 53% and 60%, recovering effect is remarkable.

Four, description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is the structural representation of the circular magnetic of the present invention system;

Fig. 3 is the structural representation of the semicircle magnetic of the present invention system.

Five, the specific embodiment

As shown in Figure 1, the present invention includes the casing of forming by upper box 7 and lower box 4.Upper box 7 is divided into feed zone 15, Disengagement zone 10 from left to right successively and unloads iron district 11.Feed zone 15 tops are provided with material inlet 8, and it can be connected with row's powder system by flange.Unload 11 bottoms, iron district and be provided with Iron Ore Powder outlet 2, it can be connected with the finished product storage tank through collection conduit.10 bottoms, Disengagement zone are provided with the ash port 25 that communicates with lower box 4.The bottom of lower box 4 is provided with magnetic breeze outlet 5 with respect to the opposite side of ash port 25; The guide cylinder 9 that the outside has helical blade 12 is installed in upper box 7, and its inside is provided with back shaft 17.Guide cylinder 9 is connected on the back shaft 17 by the bearing 18 that is embedded in its two ends.The right-hand member of back shaft 17 passes from upper box 7 and is fixed on the clamping seats 19.Helical runner 3 is installed in the lower box 4, and the two ends of the rotating shaft 23 of helical runner are connected on the bearing of lower box 4 both sides, and pass from lower box 4 two ends.An end that passes from the right side is connected with motor 1 by shaft coupling 20, and left side one end is connected with travelling gear 6, and travelling gear 6 is connected with the travelling gear 21 that is fixed on guide cylinder 9, and motor 1 just can drive helical runner 3 and guide cylinder 9 rotates simultaneously like this; Along the Disengagement zone in 10 the inwall of guide cylinders 9 to be furnished with circular magnetic be 14.Being furnished with semicircle magnetic along the upper inside wall of unloading iron district 11 interior guide cylinders 9 is 13, and this magnetic system only is positioned at the upper cavity of guide cylinder 9, and a side of corresponding Iron Ore Powder outlet 2 does not have magnetic system.As shown in Figure 2, circular magnetic is 14 for cylindrical structure, is sleeved on the yoke 22.As shown in Figure 3, semicircle magnetic is the semicircular cylinder structure, is fixed on the upside of yoke 22.Above-mentioned magnetic is is to be fixedly connected on the back shaft 17 by the gusset 16 that is fixed on yoke 22 sides.Make guide cylinder 9 when magnetic system rotates, magnetic system can be maintained fixed.Above-mentioned magnetic is to adopt permanent magnetic system.Be provided with horizontal derivation board 24 on the guide cylinder 9 in unloading iron district 11, it is positioned at the middle part of guide cylinder and joins with helical blade 12.It can change to enter into and unloads ferromagnetic materials flow directions in the iron district 11, rotates up and down by becoming with guide cylinder 9 with helical blade 12 screw propulsions, makes the easier whereabouts of ferromagnetic materials, thereby adds quick-release iron process.

Removal process of the present invention is as follows: after the flyash that adds from material inlet 8 enters feed zone 15, promptly pushed in the Disengagement zone 10 by the helical blade on the guide cylinder 9 12.Enter into the flyash of Disengagement zone 10, in 9 rotations of guide cylinder and circular magnetic is under the effect in 14 magnetic fields, ferromagnetic materials in it can repeatedly be cast aside, be adsorbed, cast aside again, adsorb again, the nonferromagnetic material of carrying secretly in the ferromagnetic materials is fully broken away from, and the full iron grade of Iron Ore Powder of recovery is improved.Simultaneously, the nonferromagnetic material that is not adsorbed drops in the lower box 4 by ash port 25, under the promotion of helical runner 3, discharges from magnetic breeze outlet 5.Throw after assorted ferromagnetic materials by helical blade 12 shift onto unload iron district 11 after, under the effect of horizontal derivation board 24 on the guide cylinder 9, along with guide cylinder 9 rotates up and down, when forwarding the bottom to and not having the position of magnetic system, owing to lose the magnetic field effect, the ferromagnetic materials that is adsorbed on guide cylinder 9 surfaces breaks away from, and falls into Iron Ore Powder outlet 2 and discharges, thereby realized the whole recovery process.The present invention can be as required, is installed in the loading system in following or flyash storehouse of ash dropping hopper of electrostatic precipitation.

The present invention is rational in infrastructure, and simplicity of design is suitable for the dry powder culm is directly reclaimed, and also can be used for the xeraphium coal ash after the wet cleaning process sorting is carried out recleaning, has improved the utilization of coal ash rate, has reduced wastage of material.Applicability of the present invention is strong, has promotional value widely, has replenished this type of and has reclaimed the blank of machine.

Claims

1, a kind of dry flyash recoverer comprises casing, motor (1) and the transmission mechanism be made up of upper and lower casing (7), (4); It is characterized in that: be separately installed with in upper and lower casing (7), (4) by motor (1) and drive guide cylinder (9) and the helical runner (3) that rotates, the outside of guide cylinder (9) is provided with helical blade (12); Upper box is by feed zone (15), Disengagement zone (10) and unload iron district (11) and form successively, feed zone (15) top, unload the ash port (25) that (11) bottom, iron district and bottom, Disengagement zone (10) are respectively equipped with material inlet (8), Iron Ore Powder outlet (2) and communicate with lower box (4), the bottom of lower box (4) is provided with the magnetic breeze and exports (5); Along the inwall of the guide cylinder (9) that is positioned at Disengagement zone (10) and be positioned at the upper inside wall of the guide cylinder (9) that unloads the iron district, being furnished with the circular magnetic system (14) and the semicircle magnetic of fixedlying connected with back shaft (17) respectively is (13).

2, dry flyash recoverer according to claim 1, it is characterized in that: described circular magnetic system (14) is tubular construction, be sleeved on the outside of yoke (22), and be fixedly connected on the back shaft (17) by the gusset (16) that is fixed on yoke (22) side.

3, dry flyash recoverer according to claim 1 and 2, it is characterized in that: described semicircle magnetic system (13) is the semicircular cylinder structure, be fixed on the upside of yoke (22), and be fixedly connected on the back shaft (17) by the gusset (16) that is fixed on yoke (22) side.

4, dry flyash recoverer according to claim 1 and 2 is characterized in that: be provided with horizontal derivation board (24) on the guide cylinder (9) in unloading iron district (11), it is positioned at the middle part of guide cylinder (9) and joins with helical blade (12).