KR101416676B1 - Neutralization and purification Apparatus for waste gypsum and waste lime - Google Patents

Abstract

The present invention relates to a waste lime slag and a waste lime waste neutralizing and refining treatment apparatus for separating heavy metals by treating waste lime and lime waste with neutralization refining treatment, comprising: a first grinding means for introducing waste lime or lime waste and pulverizing; A second crushing means for crushing the pulverized material discharged from the first crushing means by the conveying means; A neutralizing agent quantity supplying means for supplying the neutralizing agent to the second crushing means; A third crushing means for crushing the crushed material discharged from the second crushing means by the conveying means; Water supplying means for supplying water to the third crushing means; Rotating type wet sorting means for sorting the pulverized material discharged from the third pulverizing means to a predetermined size or less; A wet specific gravity selecting means for selecting a heavy metal from a waste scion or a waste liquor circuit that is filtered to a predetermined size or less from the rotary wet type selection means; And a transfer pump for transferring a waste slag or waste stone sieved to a predetermined size or less from the rotary wet sorting means to the wet specific gravity sorting means.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a neutralization purification apparatus,

The present invention relates to a refuse disposal apparatus for waste scum and waste lime and, more particularly, to a waste refuse disposal apparatus for separating and neutralizing heavy metals contained in waste lime waste generated in the manufacturing process of phosphorus acid gypsum and soda ash produced in a phosphoric acid fertilizer manufacturing process And a neutralization purification treatment apparatus.

Generally, waste gypsum is generated in a large amount during the desulfurization process and phosphoric acid, hydrofluoric acid, boron, and titanium manufacturing processes. Since the gypsum thus produced contains harmful impurities, it is directly used in products such as cement and gypsum board In addition to weakening the strength and durability of the cement and gypsum board, there is a problem in that groundwater contamination is increased due to sedimentation in nature.

Lime stone sludge is inorganic sludge generated in fertilizer factory and chemical plant, and it is general alkaline wastewater whose pH is about 11.9 ~ 12.1. Most of the waste segregation is not utilized and about 3.5 million tons are left in the workplace (self-preservation), and pollution of surrounding environment such as scattered dust and leachate (strong alkaline) is serious. On the other hand, the heavy metal content of the waste lime is within the criterion of harmful substances and it is possible to produce a specific hydrate by mixing with pozzolanic materials such as calcium carbonate (CaCO3), calcium oxide (CaO), calcium chloride (CaCl2) In particular, the use of calcium chloride as a cement hardening accelerator is very effective for pozzolanic materials having low initial strength.

Wastewater generated when treating waste scraps and lime waste is not only expensive to treat, but its process is also complicated.

Disclosure of Invention Technical Problem [8] Accordingly, the present invention has been made in view of the above problems, and an object of the present invention is to provide a waste disposal and refuse disposal apparatus for neutralizing and purifying heavy metals contained in waste scraps and waste segregation by neutralizing and refining waste scraps and waste segregation.

To achieve these and other advantages and in accordance with the purpose of the present invention, as embodied and broadly described herein, Second crushing means; A means for supplying a neutralizing agent; Water supply means; At least one rotary wet sorting means; Wet specific gravity selecting means; And a transfer pump.

Wherein the first crushing means comprises: a hopper into which a waste slurry or waste slurry is introduced; Driving means; A first crushing part; And a second crushing section.

The third grinding means includes a hopper into which the pulverized material pulverized from the second grinding means is injected; Crushing net; A crushing member; Driving means; And a transfer pipe.

The rotary wet type screening means comprises a first rotary wet type screening means including a first housing, a first watertight screen, a first rotating body and a first frame, a second housing, a second watertight screen, a second rotating body, And a second rotary wet sorting means including a frame.

The wet specific gravity selecting means comprises: a support frame; A vibration spring; Heavy metal discharge member; And a vibration motor.

The heavy metal discharging member includes: a body; Selection stairway; A plurality of protruding jaws protruding for each of the selection steps; And a discharge hole formed in the body.

As described above, by using the waste lime and lime waste neutralizing and refining apparatus, it is possible to increase the recycling rate of gypsum and lime by efficiently separating the heavy metals contained in the waste lime and waste lime.

1 is a conceptual diagram of an apparatus for purifying waste lime and waste lime according to an embodiment of the present invention.
2 is a perspective view illustrating a first grinding means according to an embodiment of the apparatus for neutralizing waste lime and lime waste according to the present invention,
3 is a perspective view showing a second grinding means according to an embodiment of the apparatus for neutralizing waste lime and lime waste according to the present invention,
FIG. 4 is a perspective view illustrating a third grinding means and a rotary type wet-type separating means according to an embodiment of the apparatus for neutralizing waste lime and lime waste according to the present invention,
FIG. 5 is a perspective view illustrating a wet specific gravity selecting means according to an embodiment of the apparatus for neutralizing and purifying waste scum and lime waste according to the present invention. FIG.

While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and will herein be described in detail.

It should be understood, however, that the invention is not intended to be limited to the particular embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention. Like reference numerals are used for like elements in describing each drawing.

The terms including ordinal, such as second, first, etc., may be used to describe various elements, but the elements are not limited to these terms.

The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the second component may be referred to as a first component, and similarly, the first component may also be referred to as a second component. And / or < / RTI > includes any combination of a plurality of related listed items or any of a plurality of related listed items.

It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, . On the other hand, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between.

The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the terms "comprises" or "having" and the like are used to specify that there is a feature, a number, a step, an operation, an element, a component or a combination thereof described in the specification, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

As shown in FIG. 1, the present invention includes a first crushing means 100 for crushing a waste stone or waste slurry into crushed materials; A second crushing means (200) for supplying the crushed material discharged from the first crushing means (100) by the conveying means (10) and re - crushing the same; A neutralizing agent quantity supplying means 300 for supplying the neutralizing agent to the second crushing means 200; A third grinding means (400) for grinding the pulverized material discharged from the second grinding means (200) by means of the transfer means (10) and re - pulverizing the same; A water supply means 500 for supplying water to the third crushing means 400; At least one rotary wet sorting means (600) for sorting the pulverized material discharged from the third pulverizing means (400) to a predetermined size or less; A wet specific gravity selecting means (700) for selecting a heavy metal from waste scum or waste lime circuit which is filtered to a predetermined size or less from the rotary wet type selecting means (600); And a transfer pump 800 for transferring waste scum or waste slag filtered to a predetermined size or less from the rotary wet type separating means 600 to the wet specific gravity separating means 700.

As shown in FIG. 2, the first crushing means 100 includes a hopper 110 into which a waste stone or waste slurry is introduced; Driving means (120); A first crushing unit 130 located at an inner upper portion of the hopper 110 and coupled to be coupled with the driving unit 120; And a second crushing unit 140 disposed below the inner first crushing unit 130 of the hopper 110 and coupled to be coupled with the driving unit 120. The first crushing unit 130 includes a first crushing unit 130, A belt engaging portion 132 is formed at one end located at one side of the hopper 110 and a gear 133 is formed at the other end positioned outside the other side of the hopper 110, At least three or more first crushing rollers 131 having at least a plurality of concavo-convex crushing blades 135 are disposed in parallel to each other, and the gears 133 are positioned to mate with each other One of the ends is coupled with the driving means 120 to rotate in an interlocked manner,

The second crushing unit 140 includes a belt engaging portion 142 formed at one end of the hopper 110 and a gear 143 disposed at the other end of the hopper 110, At least a plurality of second crushing rollers 141 having at least a plurality of concave-convex crushing blades 145 are disposed in parallel to the body 144 located inside the hopper 110, (143) are engaged with each other so that one of the ends is coupled with the driving means (120) in an axial direction and rotated.

The driving means 120 may be a variety of electric motors, but the driving means 120 can be rotated in both normal and reverse directions. The driving means 120 is composed of twin gears. The driving means 120 includes a first crushing portion 130, It is preferable to configure the unit 140 to be driven.

It is preferable that the first crushing section 130 comprises at least three first crushing rollers 131 and the second crushing section 140 comprises at least two second crushing rollers 141 desirable.

Since the first and second crushing rollers 131 and 141 are sequentially rotated and engaged with each other, the crushing blades 135 and 145 are sequentially rotated in the opposite direction, 135 and 145 are staggered from each other so that when one of the first and second crushing rollers 131 and 141 is rotated, the other first crushing roller 131 or the second crushing roller 141, So that the projections of the projecting portions 141 are rotated correspondingly, but are not interfered with the respective rotations.

It is preferable that the crushing blades 135 and 145 are coupled to the bodies 134 and 144 in the longitudinal direction, and at least three crushing blades 135 and 145 are formed.

The structure of the second crushing unit 140 prevents the crushed material crushed through the first crushing unit 130 from accumulating on the inner lower side of the hopper 110, .

3 shows a second discharging means 200 in which a hopper 210, a driving means 220, a body 230 in which a belt engaging portion 230 is formed on one side of a crushing roller and a gear 240 is formed on the other side And a crushing blade 260 coupled to the body 250.

The crushing roller is an example of the crushing roller. The crushing roller can be composed of a high-speed (450 to 1200 rpm) 1-pin crusher and a crushing net having a plurality of holes having a diameter of 2.0 mm or less.

Although not shown in detail, the second pulverizing means 200 is connected to the neutralizing agent amount supplying means 300 so that at least one of the quicklime or the sulfuric acid as the neutralizing agent is supplied to the second pulverizing means 200 And is supplied in a quantitative manner.

As shown in FIG. 4, the third crushing means 400 is a wet fin crusher, and includes a hopper 410 into which pulverized material pulverized from the second crushing means 200 is inputted; A crushing net 420 coupled to an inner lower portion of the hopper 410 and having a plurality of holes; A crushing member 430 located on the top of the crushing net 420 to crush the crushed product; Driving means (440) for interlocking the crushing member (430); And a transfer pipe 450 which is coupled to the lower portion of the hopper 410 and whose other end is positioned at one side of the rotary wet type separating means 600 so that the pulverized material to be dropped is transferred to the rotary wet type separating means 600 .

As shown in FIG. 1, a water supply means 500 is connected to the third crushing means 400 to supply industrial water or purified water.

The size of the holes formed in the crushing net 420 is preferably 0.5 to 1.0 mm or less, and the shape and structure of the transfer pipe 450 may vary depending on the working environment.

As shown in FIG. 1, the rotary wet type screening means 600 includes a first rotary wet type screening means 600-1 for filtering the pulverized material transferred from the transfer pipe 450 to a size of 1.0 mm or less; And a second rotary type wet type screening means (600-2) for filtering out the screened product filtered from the first rotary type wet type screening means (600-1) to a size of 0.1 mm or less.

As shown in FIGS. 1 and 4, the first rotary wet type separating means 600-1 has a lower end portion of the conveyance pipe 450 and a lower portion of the 1-1 discharge portion 611- A first housing 610-1 provided with a first discharge unit 612-1 formed so as not to interfere with the first discharge unit 611-1 and the first discharge unit 611-1; The first housing 610-1 is installed at a predetermined angle to rotate, and the other end of the transfer tube 450 is positioned at one side of the first housing 610-1. Network 620-1; A first rotating body 630-1 coupled to one side of the driving motor and coupled with the first water-receiving net 620-1 to rotate the first water-receiving net 620-1 together during rotation; And a first frame 640-1 on which the first rotating body 630-1 and the first housing 610-1 are seated and supported.

The first rotary wet type separating means 600-1 preferably uses an incra-sieve screen wet type separator in which the diameter of the first sorting hole 621-1 is adjusted to 1.0 mm or less.

That is, when the pulverized material and the water are conveyed to the one side of the first water receiving net 620-1 through the conveying pipe 450 through the third pulverizing means 400, Only the crushed material having a size of 1.0 mm or less is discharged to the 1-1 discharge portion 611-1 while the water permeable net 620-1 is rotated, And is discharged to the 1-2 discharge portion 612-1 through the other side.

The sorting material discharged to the 1-2 discharging portion 612-1 is separately managed through the transferring means 10 and the like, and the sorting material discharged through the 1-1 discharging portion 611-1 is supplied to the transfer pump 10, Is transferred to the wet specific gravity selecting means 700 through the first rotary type wetting screen selecting means 800 or to the second rotary type wetting screen selecting means 600-2.

4, the second rotary wet type selection means 600-2 has the same structure as the first rotary type wet type selection means 600-1, and the detailed structure thereof is not shown separately. Referring to FIG. 4 having the same structure, The sorting material discharged into the 1-1 discharging portion 611-1 flows into the lower portion and is not formed in the lower portion so as not to interfere with the 2-1 discharging portion 611-2 and the 2-1 discharging portion 611-2 A second housing 610-2 provided with a 2-2 discharge portion 612-2; A second water hole 621-2 formed at a predetermined angle to the inside of the second housing 610-2 so as to be rotated, a lower end of the transfer pipe 450 to one side, and a plurality of second selection holes 621-2, (620-2); A second rotating body 630-2 coupled to one side of the driving motor and coupled with the second water-receiving net 620-2 to rotate the second water-receiving net 620-2 together during rotation; And a second frame 640-2 on which the second rotating body 630-2 and the second housing 610-2 are seated and supported.

The second rotary wet type separating means 600-2 preferably uses an incra-sieve screen wet separator whose diameter of the second discriminating hole 621-2 is adjusted to 0.1 mm or less.

That is, as shown in FIG. 1, when the sorting material discharged to the 1-1 discharging portion 611-1 is transferred to one side of the second water receiving net 620-2, The inclined second water-permeable screen 620-2 rotates and only the pulverized material having a size of 0.1 mm or less is discharged to the second-1 discharging portion 611-2. When the size is 0.1 mm or more, the second water- -2 to the second-2 discharge portion 612-2.

The sorting material discharged to the second-second discharging portion 612-2 is managed separately through the transferring means 10 and the like, and the sorting material discharged through the second- Is transferred to the wet specific gravity discriminating means (700)

The second rotary wet type separating means 600-2 has the same structure as the first rotary type wet separating means 600-1. However, as shown in FIG. 1, 3-way valve is connected to the lower part, and the sorted material discharged through the first rotary wet type separating means 600-1 is directly transferred to the wet specific gravity separating means 700 by the transfer pump 800, Is transferred to the wet specific gravity discriminating means (700) by the transfer pump (800) through the wet sorting means (600-2).

The wet type nonwoven fabric is transferred from the first rotary type wet type separating means 600-1 to the wet type non-separating means 700 through the second rotary type wet type separating means 600-2, The particles of the sorting material are smaller and the number of the rotary wet sorting means 600 can be increased according to the size of the selected particle.

This has the advantage of reducing the load on the machine when selecting small particles from the initial screening process and increasing the working efficiency.

5, the wet specific gravity selecting means 700 selects the sorting material selected from the first rotary wet type selection means 600-1 or the second rotary type wet type selection means 600-2 as the transfer pump 800 A support frame 710 sloping from one side of the upper portion to the other side of the support frame 710; At least one oscillating spring 720 coupled to an upper portion of the support frame 710; A heavy metal discharge member 730 formed in a stepped shape and coupled to the upper portion of the vibration spring 720 and discharging the heavy metal from the supplied sorting material to one side according to the specific gravity; And at least one vibration motor 740 for vibrating the heavy metal discharge member 730. [

The conveyance by the conveying means 10 can be applied by applying various known techniques such as a conveyor belt or a conveyance using a pump.

Further, the heavy metal discharge member 730 includes a body 731 slantedly coupled to the upper portion of the vibration spring 720; A plurality of selection steps 732 coupled along an inclined surface of the body 731; A plurality of protruding protrusions 733 protruding from each of the sorting steps 732; And a discharge hole 734 formed in the body 731 in one direction of the sorting step 732.

The sorting material supplied to the wet specific gravity selecting means 700 is injected into the upper portion of the body 731 and is filtered through the discharge holes 734 in order from the heavy specific gravity along the sorting step 732.

That is, the sorting step 732 is composed of a plurality of steps, and each of the sorting steps 732 is formed with a protruding step 733 having a height of 10 to 30 mm.

As shown in FIG. 5, the protruding protrusions 733 may be formed of at least three protruding protrusions 733 spaced apart from each other by a predetermined interval for each of the protruding protrusions 733, And one end of the projecting step 733 formed at the lower end is positioned at the other end of the projecting step 733 formed at the stop.

The discharge hole 734 is formed on the other side of the body 731 and is formed for each of the sorting steps 732 and located at the other end of the protrusion 733 formed at the lower end.

Accordingly, as the body 731 is vibrated by the at least one vibration motor 740, heavy metals or the like heavy at the upper portion of the wet specific gravity discriminating means 700 are filtered at the upper portion thereof, Is filtered down sequentially and downward.

On the other hand, it is preferable that the mounting position and the number of mounting the vibration motor 740 are not limited.

By using the present invention as described above, it is possible to neutralize and refine waste scum and lime waste, and it is preferable that the ratios, sizes and shapes of the drawings are not limited.

Also, although not shown, it is preferable that the above-described work process is controlled by a separate control unit.

10: conveying means
100: first crushing means 110: hopper
120: drive means 130: first crushing section
131: first crushing roller 132, 142: belt engaging portion
133, 143: gear 134, 144: body
135, 145: Crushing blade
200: second crushing means 210: hopper
220: driving means 230:
240: Gear 250: Body
260: Crushing blade
300: Quantitative supply of neutralizing agent
400: Third crushing means 410: Hopper
420: crushing net 430: crushing member
440: driving means 450: transfer pipe
500: water supply means
600: rotary wet sorting means
600-1: first rotary wet type selection means
610-1: first housing 611-1:
612-1: 1st-2nd discharger 620-1: 1st pitcher
621-1: first selection hole 630-1: first rotating body
640-1: first frame
600-2 2nd rotary wet sorting means
610-2: second housing 611-2:
612-2: 2nd-2 discharger 620-2: 2nd pitcher
621-2: second selection hole 630-2: second rotating body
640-2: Second frame
700: wet specific gravity selecting means 710: supporting frame
720: oscillating spring 730: heavy metal discharge member
731: Body 732: Selection step
733: protruding jaw 734: discharge hole
740: Vibration motor
800: Transfer pump

Claims (9)

A first crushing means for crushing a waste rock or a waste rock slurry into a crushed stone;
A second crushing means for crushing the pulverized material discharged from the first crushing means by the conveying means;
A neutralizing agent quantity supplying means for supplying the neutralizing agent to the second crushing means;
A third crushing means for crushing the crushed material discharged from the second crushing means by the conveying means;
Water supplying means for supplying water to the third crushing means;
At least one rotary wet sorting means for sorting the pulverized material discharged from the third pulverizing means to a predetermined size or less;
A wet specific gravity selecting means for selecting a heavy metal from a waste scum or waste lime circuit that is filtered to a predetermined size or less from the rotary wet type selection means; And
And a transfer pump for transferring a waste slag or waste stone sieved to a predetermined size or less from the rotary wet sorting means to the wet specific gravity sorting means,
The wet specific gravity selecting means comprises:
The sorting material selected from the rotary wet type sorting means is supplied by the transfer pump and the heavy metals are selectively filtered,
A support frame formed to be sloped from one upper side to the other lower side;
At least one vibration spring coupled to an upper portion of the support frame;
A heavy metal discharge member formed in a stepped shape and coupled to the upper portion of the vibration spring and discharging the heavy metal from the supplied sorting material to one side according to the specific gravity; And
And at least one vibration motor for vibrating the heavy metal discharge member.
The apparatus according to claim 1, wherein the first grinding means comprises:
A hopper into which a waste rock slag or a waste slag is injected;
Driving means;
A first crushing unit positioned inside the hopper and coupled to the driving unit; And
And a second crushing unit located at a lower portion of the first crushing unit inside the hopper and coupled to be interlocked with the driving unit,
Wherein the first crushing unit comprises:
A gear is formed at the other end positioned outside the other side of the hopper, a body located on the inside of the hopper is provided with a concave / Wherein at least three first crushing rollers are disposed in parallel so that the gears are in mesh with each other so that one end of the first crushing roller is axially engaged with the driving means and rotated,
Wherein the second crushing unit comprises:
A gear is formed at the other end positioned outside the other side of the hopper, a body located on the inside of the hopper is provided with a concave / Characterized in that at least a plurality of second crushing rollers to which a plurality of the crushing rollers are coupled are arranged in parallel so that the gears are engaged with each other so that one end of the second crushing roller is axially engaged with the driving means and rotated in association therewith. Refining apparatus.
The apparatus according to claim 1, wherein the third grinding means comprises:
A hopper into which pulverized material pulverized from the second pulverizing means is injected;
A pulverizing net coupled to a lower portion of the hopper and having a plurality of holes;
A crushing member positioned on the crushing net to crush the crushed product;
Driving means for interlocking the crushing member; And
Wherein the one end is coupled to the lower portion of the hopper and the other end is located at one side of the rotary wet type separating means so that the pulverized material to be dropped is conveyed to the rotary wet type separating means.
The apparatus according to claim 3, wherein the rotary wet type selection means comprises:
A first rotary wet type screening means for screening the pulverized material transferred from the transfer tube to a size of 1.0 mm or less; And
And second rotary wet type screening means for filtering out the screened product filtered from the first rotary wet type screening means to a size of not more than 0.1 mm again.
5. The apparatus according to claim 4, wherein the first rotary type wet-
A first housing having a first end located at one end of the conveyance pipe and a second outlet formed at a lower portion thereof so as not to interfere with the first ejection unit and the first ejection unit;
A first water-permeable mesh which is installed in the interior of the first housing at a predetermined angle and rotates, the other end of the water-conveying pipe is located at one side, and a plurality of first screening holes are formed;
A first rotating body coupled to one side of the driving motor to engage with the driving motor and to rotate together with the first water-permeable net when rotated; And
And a first frame on which the first rotating body and the first housing are seated and supported.
6. The apparatus according to claim 5, wherein the second rotary type wet-
A first housing having a first housing and a second housing having a first housing and a second housing having a first housing and a second housing, ;
A second water-permeable mesh which is installed inside the second housing at a predetermined angle and rotates, the other end of the water-conveying pipe is located at one side, and a plurality of second screening holes are formed;
A second rotating body coupled to one side of the driving motor and coupled with the second water-permeable net to rotate the second water-permeable net together during rotation; And
And a second frame on which the second rotating body and the second housing are seated and supported.
delete The apparatus according to claim 1, wherein the heavy metal discharge member
A body inclinedly coupled to the upper portion of the vibration spring;
A plurality of selection steps coupled along an inclined surface of the body;
A plurality of protruding jaws protruding for each of the selection steps; And
And a discharge hole formed in the body in one direction of the sorting step.
7. The method according to any one of claims 4 to 6,
Characterized in that the sorted material discharged through the first rotary wet sorting means is directly fed to the wet specific gravity selecting means by a feed pump or is conveyed to the wet specific gravity selecting means via the second rotary wet type selecting means. And a waste liquor neutralization purification treatment device.

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