阅读说明：本技术 一种带湿式布料器的直线分级筛 (Take wet-type distributing device's sharp classifying screen ) 是由 卢秉钊 韩宇 陈国帅 高宏峰 于 2021-09-27 设计创作，主要内容包括：本发明涉及垃圾发电厂焚烧后的炉渣处理装置领域,一种带湿式布料器的直线分级筛,其中储水箱为长条状的横截面为方形的箱体,储水箱长度方向第一侧面的上半部镂空,储水箱长度方向第一侧面的下半部为顶溢流板,入水管的排水端设置在储水箱内,底部出料板长度方向的第一端与顶溢流板的外部侧壁连接,底部出料板向远离储水箱的斜下方向延伸,底部出料板开设有镂空形成的出料镂空,底部出料板的下部末端形成出料敞口,入料斗的下部出料端朝向底部出料板；湿式布料器安装在直线分级筛的上方,使湿式布料器排出的物料落在过筛面的起始位置。本直线分级筛可将物料进行再一次的清洗,提高有色金属的分选率。(The invention relates to the field of a slag treatment device after incineration in a waste power plant, in particular to a linear grading sieve with a wet-type distributor, wherein a water storage tank is a box body with a long strip-shaped cross section being square, the upper half part of a first side surface in the length direction of the water storage tank is hollowed, the lower half part of the first side surface in the length direction of the water storage tank is a top overflow plate, a drainage end of a water inlet pipe is arranged in the water storage tank, a first end in the length direction of a bottom discharging plate is connected with the outer side wall of the top overflow plate, the bottom discharging plate extends towards the oblique lower direction far away from the water storage tank, the bottom discharging plate is provided with a discharging hollow formed by hollowing, the lower tail end of the bottom discharging plate forms a discharging opening, and the lower discharging end of a feeding hopper faces the bottom discharging plate; the wet distributor is arranged above the linear grading screen, so that the material discharged by the wet distributor falls on the initial position of the screen surface. The linear grading sieve can clean materials again, and improves the separation rate of nonferrous metals.)

1. The utility model provides a take linear grading sieve of wet-type distributing device which characterized in that: comprises a wet distributor and a linear grading sieve, wherein the linear grading sieve is provided with a sieving surface, the wet distributor comprises a feeding hopper, a water inlet pipe, a water storage tank, a top overflow plate and a bottom discharge plate, the water storage tank is a box body with a strip-shaped cross section being square, the upper half part of the first side surface of the water storage tank in the length direction is hollowed, the lower half part of the first side surface of the water storage tank in the length direction is the top overflow plate, the drainage end of the water inlet pipe is arranged in the water storage tank, the length of the bottom discharge plate is matched with the length of the water storage tank, the first end of the bottom discharge plate in the length direction is connected with the outer side wall of the top overflow plate, the bottom discharge plate extends in the oblique downward direction away from the water storage tank, the discharge hollowed part is arranged on the bottom discharge plate, the tail end of the lower part of the bottom discharge plate forms a discharge opening, the feeding hopper is arranged above the bottom discharge plate, and the lower part of the feeding hopper is a discharge end, the discharging end of the feeding hopper faces the bottom discharging plate;

wet-type distributing device installs in the top of sharp classifying screen, and wet-type distributing device's ejection of compact fretwork and the uncovered initial position that all crosses the sifting surface with sharp classifying screen correspond to make the discharged material of wet-type distributing device fall on the initial position of crossing the sifting surface.

2. The linear classifying screen with a wet distributor according to claim 1, wherein: at least two groups of discharging hollows are arranged on a discharging plate at the bottom of the wet-type distributor, and the two groups of discharging hollows are arranged in staggered positions in the moving direction of the material.

3. The linear classifying screen with a wet distributor according to claim 2, wherein: the discharging hollow parts are two groups and are respectively a rear discharging hollow part and a front discharging hollow part, and the rear discharging hollow part and the front discharging hollow part are strip-shaped hollow parts which are arranged along the length direction of the bottom discharging plate.

4. The linear classifying screen with a wet distributor according to claim 3, wherein: the rear discharge material hollows are formed, and the length of each strip-shaped hollow is larger than the distance between every two adjacent strip-shaped hollows; the rear discharge material hollows are formed, and the length of each strip-shaped hollow is larger than the distance between every two adjacent strip-shaped hollows.

5. The linear classifying screen with a wet distributor according to claim 1, wherein: the inlet pipe passes through the lateral wall of storage water tank, and the inlet pipe is located the outside first end of storage water tank and is equipped with flange joint, and the inlet pipe is located the inside second end setting in top overflow plate top edge's below of storage water tank.

6. The linear classifying screen with a wet distributor as claimed in claim 5, wherein: the second end of the water inlet pipe is arranged towards the bottom wall of the water storage tank.

7. The linear classifying screen with a wet distributor according to claim 1, wherein: wet-type distributing device still includes support and crossbeam, the support has two, and two supports are installed respectively in the width direction's of sharp classifying screen crossing the initial position of sifting surface both sides, the top at two supports is connected to the crossbeam, wet-type distributing device installs on the crossbeam to establish the top at sharp classifying screen through the crossbeam.

8. The linear classifying screen with a wet distributor according to claim 1, wherein: the length of the wet distributor is not more than the width of the screen surface of the linear grading screen.

9. The linear classifying screen with a wet distributor according to claim 1, wherein: the length of bottom ejection of compact board matches with the length of storage water tank, go into the discharge end width of hopper and the length matching of bottom ejection of compact board.

10. The linear classifying screen with a wet distributor according to claim 1, wherein: the screening surface of straight line classifying screen is equipped with four sections that the order set up along material moving direction, and wherein first section is the blind plate, wet-type distributing device sets up in first section top, and the second section is 2mm strip seam sieve, and the third section is 6mm strip seam sieve, and the fourth section is for being greater than 30 mm's sieve.

Technical Field

The invention relates to the field of a slag treatment device after incineration in a waste power plant, in particular to a linear grading sieve with a wet distributor.

Background

The general slag treatment is that the slag directly enters a linear grading sieve, then the slag is graded in granularity, the material jumps along a straight line and advances gradually in the advancing process, the material is distributed on the surface of the linear grading sieve in a fan shape, and the material falls into corresponding pipelines step by step through sieve plates of the linear grading sieve according to the size of the particle diameter and enters the next procedure. One is that slag is used differently depending on the particle size. Secondly, because the materials contain a large amount of nonferrous metals such as copper, aluminum and the like, the materials can be separated and recovered according to the material diameter by using an eddy current separator. Therefore, better grading of the material granularity is very important.

Because during traditional material loading, the material does not pass through the preliminary treatment, can not in time even dispersion to the sifter, often middle stock coat is thick, and both ends bed of material is thin, and the material can not fully contact with the sifter, and the material granule can not fall into corresponding pipeline according to the screen cut size completely, and the large granule material has just been sneaked into to some small-size materials. A large amount of silt is attached to the surface of the material, and in the extraction process of nonferrous metals, severe ghost sound is generated in the recovery of nonferrous metals such as copper, aluminum and the like in the eddy current separator. The sorting rate is greatly reduced. The non-ferrous metal materials are mixed in the raw materials of the slag, and the quality of the slag brick making is also influenced. Both the separation of nonferrous metals and the brick making by slag bring great difficulty.

Disclosure of Invention

In order to solve the problems, the invention provides the linear grading sieve with the wet-type distributing device, which can be used for cleaning materials again and improving the separation rate of nonferrous metals, so that the subsequent quality of slag brickmaking is greatly improved.

In order to achieve the purpose, the invention adopts the technical scheme that:

a linear grading sieve with a wet distributor comprises a wet distributor and a linear grading sieve, wherein the linear grading sieve is provided with a sieving surface, the wet distributor comprises a feeding hopper, a water inlet pipe, a water storage tank, a top overflow plate and a bottom discharge plate, the water storage tank is a box body with a long strip-shaped cross section being square, the upper half part of the first side surface of the water storage tank in the length direction is hollowed out, the lower half part of the first side surface of the water storage tank in the length direction is the top overflow plate, the water discharge end of the water inlet pipe is arranged in the water storage tank, the length of the bottom discharge plate is matched with that of the water storage tank, the first end of the bottom discharge plate in the length direction is connected with the outer side wall of the top overflow plate, the bottom discharge plate extends in the oblique downward direction far away from the water storage tank, the discharge hollowed-out part is provided with a discharge hollow-out part, the lower end of the bottom discharge plate forms a discharge opening, the feeding hopper is arranged above the bottom discharge plate, the lower part of the feeding hopper is a discharging end, and the discharging end of the feeding hopper faces to the bottom discharging plate;

wet-type distributing device installs in the top of sharp classifying screen, and wet-type distributing device's ejection of compact fretwork and the uncovered initial position that all crosses the sifting surface with sharp classifying screen correspond to make the discharged material of wet-type distributing device fall on the initial position of crossing the sifting surface.

Preferably, at least two groups of discharging hollows are arranged on the bottom discharging plate of the wet distributor, and the two adjacent groups of discharging hollows are arranged at staggered positions in the material moving direction.

Preferably, the two groups of discharging hollows are respectively a rear discharging hollow and a front discharging hollow, and the rear discharging hollow and the front discharging hollow are both strip-shaped hollows arranged along the length direction of the bottom discharging plate.

Preferably, the rear discharge material hollows are formed, and the length of each strip-shaped hollow is larger than the distance between every two adjacent strip-shaped hollows; the rear discharge material hollows are formed, and the length of each strip-shaped hollow is larger than the distance between every two adjacent strip-shaped hollows.

Preferably, the water inlet pipe penetrates through the side wall of the water storage tank, a flange joint is arranged at the first end, located outside the water storage tank, of the water inlet pipe, and the second end, located inside the water storage tank, of the water inlet pipe is arranged below the edge of the top overflow plate.

Preferably, the second end of the water inlet pipe is arranged towards the bottom wall of the water storage tank.

Preferably, the wet distributor further comprises two supports and two cross beams, the two supports are respectively arranged on two sides of the width direction of the initial position of the screen passing surface of the linear grading screen, the cross beams are connected to the tops of the two supports, and the wet distributor is arranged on the cross beams and erected above the linear grading screen through the cross beams.

Preferably, the length of the wet distributor is not more than the width of the linear grading sieve surface.

Preferably, the length of the bottom discharging plate is matched with that of the water storage tank, and the width of the discharging end of the feeding hopper is matched with that of the bottom discharging plate.

Preferably, four sections which are sequentially arranged are arranged on the sieving surface of the linear grading sieve along the material moving direction, wherein the first section is a blind plate, the wet distributor is arranged above the first section, the second section is a 2mm slotted sieve plate, the third section is a 6mm slotted sieve plate, and the fourth section is a sieve plate larger than 30 mm.

The beneficial effects of the invention are as follows:

the invention relates to the particle size classification of burned slag of a waste power plant in the environmental protection field, which is characterized in that the slag is pretreated before entering a linear classifying screen, after the slag is uniformly distributed, the slag material degrees are grouped by the linear classifying screen, and then nonferrous metal is separated, so that the separation effect is obviously improved, and economic benefits are brought to the society.

Drawings

Fig. 1 is a schematic structural view of a linear classifying screen with a wet distributor according to the present invention.

Fig. 2 is a sectional view of a wet distributor in a linear classifying screen with a wet distributor according to the present invention.

Fig. 3 is a top view of a wet distributor body in the linear classifying screen with a wet distributor according to the present invention.

Fig. 4 is a schematic axial view of a wet distributor in a linear classifying screen with a wet distributor according to the present invention.

Fig. 5 is a schematic diagram showing a screen mesh stage of a linear classifying screen in the linear classifying screen with a wet distributor according to the present invention.

The reference numerals include:

1-wet distributor, 11-inlet hopper, 12-inlet pipe, 13-water storage tank, 14-top overflow plate, 15-front baffle, 16-bottom discharge plate, 17-rear discharge hollow, 18-front discharge hollow, 19-discharge opening, 110-bracket, 111-cross beam, 112-flange joint and 2-linear grading sieve.

Detailed Description

In order to make the purpose, technical solution and advantages of the present technical solution more clear, the present technical solution is further described in detail below with reference to specific embodiments. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present teachings.

As shown in fig. 1-5, the present embodiment provides a linear classifying screen 2 with a wet distributor 1, which includes a wet distributor 1 and a linear classifying screen 2, wherein the linear classifying screen 2 has a screening surface, the wet distributor 1 includes a feeding hopper 11, a water inlet pipe 12, a water storage tank 13, a top overflow plate 14 and a bottom discharge plate 16, wherein the water storage tank 13 is a box body with a long strip-shaped cross section and a square shape, the upper half of the first side surface of the water storage tank 13 in the length direction is hollow, the lower half of the first side surface of the water storage tank 13 in the length direction is the top overflow plate 14, the water discharge end of the water inlet pipe 12 is disposed in the water storage tank 13, the length of the bottom discharge plate 16 is matched with the length of the water storage tank 13, the first end of the bottom discharge plate 16 in the length direction is connected with the outer side wall of the top overflow plate 14, the bottom discharge plate 16 extends in the oblique downward direction away from the water storage tank 13, the bottom discharge plate 16 is provided with a hollow discharge opening, the tail end of the lower part of the bottom discharging plate 16 forms a discharging opening 19, the feeding hopper 11 is arranged above the bottom discharging plate 16, the lower part of the feeding hopper 11 is a discharging end, and the discharging end of the feeding hopper 11 faces the bottom discharging plate 16; wet-type distributing device 1 is installed in the top of sharp classifying screen 2, and wet-type distributing device 1's ejection of compact fretwork and the uncovered 19 of ejection of compact all correspond with the initial position that sharp classifying screen 2 crossed the sifting surface to make wet-type distributing device 1 exhaust material fall on the initial position of crossing the sifting surface.

In this embodiment, the wet distributor 1 further includes two brackets 110 and two cross beams 111, the two brackets 110 are respectively installed on two sides of the starting position of the screen surface of the linear classifying screen 2 in the width direction, the cross beam 111 is connected to the tops of the two brackets 110, and the wet distributor 1 is installed on the cross beam 111 and is erected above the linear classifying screen 2 through the cross beam 111.

Specifically, the support 110 is of a ladder-type structure, the height of the support 110 is matched with the height of the starting end of the linear classifying screen 2, the number of the cross beams 111 is two, the two cross beams 111 are respectively overlapped at the front end and the rear end of the support 110, the two cross beams 111 are arranged in parallel at equal height, and the back of the water storage tank 13 is fixedly installed on the rear cross beam 111. As shown in fig. 2, the upper half of the first side of the water storage tank 13 in the length direction is hollowed, the front part of the top plate of the water storage tank 13 extends forward and protrudes out of the first side of the fixed plate, and the front part of the top plate of the water storage tank 13 is then bent downward to form a front baffle 15. The free end edge of the lower end of the front lip is positioned lower than the height of the free end edge of the top overflow plate 14, thus creating a channel for water to pass between the top overflow plate 14 and the front baffle 15.

When the device is used, water is drained into the water storage tank 13 through the water inlet pipe 12, water flow is slowly accumulated in the water storage tank 13, when the liquid level of water in the water storage tank 13 is higher than that of the top overflow plate 14, the water stably and uniformly overflows from the free edge of the top overflow plate 14, and the free edge of the top overflow plate 14 can be understood to be in a horizontal state, so that the water flow uniformly overflows in the length direction of the free edge of the top overflow plate 14. In the process, the front baffle 15 has the effect of blocking water flow from directly impacting the discharging hollow-out, and a water outlet is formed between the front baffle 15 and the top overflow plate 14.

The slag material is put into the bottom discharging plate 16 from the feeding hopper 11, the water overflowing from the water storage tank 13 is mixed with the slag material entering from the feeding port from the water outlet to form a mixture, the mixture partially falls into the linear grading sieve 2 through discharging hollow after the discharging hollow, and the rest mixture falls into the linear grading sieve 2 through the discharging opening 19, so that the material is uniformly distributed on the surface of the linear grading sieve 2 in a loose shape.

The discharge openings are described in detail below. At least two groups of discharging hollows are arranged on a bottom discharging plate 16 of the wet distributor 1, and the two adjacent groups of discharging hollows are arranged at staggered positions in the moving direction of the material. At the moment, the mixture can be hollowed out through discharging to form a dispersing effect as much as possible, and then the slag material is formed to be loose.

The discharging hollows are two groups and are respectively a rear discharging hollow 17 and a front discharging hollow 18, and the rear discharging hollow 17 and the front discharging hollow 18 are strip-shaped hollows arranged along the length direction of the bottom discharging plate 16. In this embodiment, the rear discharge hollow 17 and the front discharge hollow 18 are both in a track shape to intercept more materials.

In the rear discharge material hollow 17, the length of a single strip-shaped hollow is greater than the distance between two adjacent strip-shaped hollows; in the rear discharge material hollows 17, the length of a single strip-shaped hollow is larger than the distance between two adjacent strip-shaped hollows so as to intercept more materials.

The water inlet pipe 12 penetrates through the side wall of the water storage tank 13, a flange joint 112 is arranged at the first end of the water inlet pipe 12, which is positioned outside the water storage tank 13, and the second end of the water inlet pipe 12, which is positioned inside the water storage tank 13, is arranged below the top edge of the top overflow plate 14. The water inlet pipe 12 can be butted with an external pressure water pipe through a flange joint 112, so that water flow is input.

Preferably, the second end of the water inlet pipe 12 is disposed toward the bottom wall of the water storage tank 13, so that the water flow output by the water inlet pipe 12 can enter the water storage tank 13 more smoothly, and the water flow output by the top overflow plate 14 is also more smoothly and uniformly.

It will be appreciated that the length of the wet distributor 1 is not greater than the width of the screening surface of the linear classifying screen 2. The length of the bottom discharging plate 16 is matched with that of the water storage tank 13, and the width of the discharging end of the feeding hopper 11 is matched with that of the bottom discharging plate 16.

As shown in fig. 5, the sieving surface of the linear classifying screen 2 is provided with four sections arranged in sequence along the material moving direction, wherein the first section is a blind plate, the wet distributor 1 is arranged above the first section, the second section is a 2mm slotted screen plate, the third section is a 6mm slotted screen plate, and the fourth section is a screen plate larger than 30 mm.

Specifically, the classifying screen is divided into four sections along the material running direction, the first section is a blind plate, namely the material falling point wet distributor 1 is arranged at the position, the second section is a 2mm slotted screen plate, and silt smaller than 2mm falls into the section and then enters the silt settling treatment tank for recovery treatment. And thirdly, materials with the size larger than 2mm are sprayed and washed in the fourth section and then enter an eddy current separator for separating nonferrous metals. The third section is a 6mm slotted screen and the fourth section is a >30mm screen. The eddy current separator can separate metal particles.

The eddy current separator is an effective non-ferrous metal recovery method. The method has the advantages of good separation effect, strong adaptability, reliable mechanical structure, high separation efficiency, large treatment capacity and the like, and can separate the metal particles from the rest slag materials except the metal particles.

The foregoing is only a preferred embodiment of the present invention, and many variations in the specific embodiments and applications of the invention may be made by those skilled in the art without departing from the spirit of the invention, which falls within the scope of the claims of this patent.