CN110639680B

CN110639680B - Limestone screening device

Info

Publication number: CN110639680B
Application number: CN201910795182.9A
Authority: CN
Inventors: 史鹏
Original assignee: Anhui Aia New Materials Co ltd
Current assignee: Anhui Aia New Materials Co ltd
Priority date: 2019-08-24
Filing date: 2019-08-24
Publication date: 2021-08-10
Anticipated expiration: 2039-08-24
Also published as: CN110639680A

Abstract

The invention discloses a limestone screening device, which has the technical scheme that: including lower feed cylinder, first conveying pipeline, send the dirt pipe, loading attachment, first conveying pipeline slope sets up in ground, the high one end of first conveying pipeline is connected with lower feed cylinder, the high low one end department of first conveying pipeline is in loading attachment's top, send the dirt pipe to install on one side of conveying pipeline towards ground, a plurality of filtration pores have been seted up on the lateral wall of first conveying pipeline towards ground, a plurality of filtration pores evenly distributed are on the corresponding lateral wall of first conveying pipeline, the one end below that send the dirt pipe to be close to ground is equipped with the dust collecting tank. Most of the powder enters the dust feeding pipe through the filter holes, and then is collected by the dust feeding pipe and is fed into the dust collection groove, so that the limestone powder can be recycled, and the dust raising phenomenon of limestone in the subsequent crushing process is reduced; the dust conveying pipe is obliquely arranged along with the first conveying pipe, so that the occupied area in the horizontal direction is reduced.

Description

Limestone screening device

Technical Field

The invention relates to the technical field of limestone processing equipment, in particular to a limestone screening device.

Background

In modern industry, limestone is the main raw material for manufacturing cement, lime and calcium carbide, and the annual consumption is very large. At present, cement enterprises in China compete for markets and limestone resources, so that many enterprises take advantage of limestone resources as one of measures for realizing development strategies. On the other hand, these enterprises are engaged in studying how to reduce the waste of limestone during the processing process, so as to improve the utilization rate of resources.

Limestone is the powder that can produce because of the collision in exploitation, the transportation, and these powders are transported the processing place of limestone together along with the limestone raw materials and are processed, and in the limestone raw materials course of working, for example when using the breaker to carry out the breakage to the limestone raw materials, the limestone raw materials can be turned over, lead to the raise dust phenomenon to appear in the limestone powder, both cause the pollution to the production environment, also caused the waste of limestone resources simultaneously.

Disclosure of Invention

In view of the defects of the prior art, the invention aims to provide a limestone screening device, which can improve the overall utilization rate of limestone by recovering limestone powder.

The technical purpose of the invention is realized by the following technical scheme: the utility model provides a limestone screening plant, includes feed cylinder down, still includes first conveying pipeline, send dirt pipe, loading attachment, first conveying pipeline slope sets up in ground, and the high one end of first conveying pipeline is connected with feed cylinder down, and the high low one end department of first conveying pipeline is in loading attachment's top, send the dirt pipe to install on one side of first conveying pipeline towards ground, and send the length direction of dirt pipe the same with the length direction of first conveying pipeline, set up the filtration pore that supplies the limestone powder to pass through on the lateral wall of first conveying pipeline towards ground, the filtration pore has a plurality ofly, and a plurality of filtration pores evenly distributed are on the corresponding lateral wall of first conveying pipeline, and all filtration pores all communicate with the inner chamber of sending the dirt pipe, send the one end below that the dirt pipe is close to ground to be equipped with the dust collection tank.

According to the technical scheme, in the process that limestone rolls in the first conveying pipe, most of powder in the limestone enters the dust conveying pipe through the filter holes, is collected by the dust conveying pipe and is conveyed into the dust collecting groove, so that limestone powder can be recycled, the rest of limestone enters the feeding device and is conveyed to the crusher through the feeding device to be crushed, and the dust raising phenomenon in the crushing process is reduced; the dust conveying pipe is obliquely arranged along with the first conveying pipe, so that the occupied area in the horizontal direction is reduced.

Preferably, the dust conveying pipe comprises a first side plate, a second side plate, a bottom plate and a cover plate, wherein one side edge of the first side plate and one side edge of the second side plate are connected to the first conveying pipeline, the other side of the first side plate is closer to the ground than the other side of the second side plate, the two side edges of the bottom plate are respectively connected to the side edge of the first side plate facing the ground and the side edge of the second side plate facing the ground, and the cover plate covers one end of the first side plate, the second side plate and the bottom plate, which is far away from the ground.

Through above-mentioned technical scheme, one side that bottom plate and second curb plate are connected highly will be higher than one side that bottom plate and first curb plate are connected, leads to the limestone powder to drop on the bottom plate after can slide to one side of first curb plate, and the dust collecting tank can set up the below of the opening deviation to first curb plate one side at the dust conveying pipe pertinence, reduces the volume of dust collecting tank, further reduces area.

Preferably, the tip that ground was kept away from to the bottom plate is articulated on the apron, be equipped with vibrating motor on the bottom plate, first curb plate and second curb plate are relative all to be equipped with the spout on the surface, and two spouts are the arc wall that uses the articulated position of apron and bottom plate as the center pin, all be equipped with the slider with corresponding sideslip groove phase-match on the both sides of bottom plate, slider sliding connection is in the spout of corresponding side.

Through above-mentioned technical scheme, vibrating motor makes the bottom plate can slightly vibrate at the screening in-process for the slip of limestone powder on the bottom plate reduces the possibility that limestone powder piles up on the bottom plate.

Preferably, both sides of the bottom plate are provided with a first baffle plate and a second baffle plate, the first baffle plate covers the chute notch of the first side plate, and the second baffle plate covers the chute notch of the second side plate.

Through the technical scheme, when the bottom plate vibrates, the first baffle covers the chute notch of the first side plate all the time, the second baffle covers the chute notch of the second side plate all the time, limestone powder in the dust conveying pipe is reduced to fly into the chute, waste of limestone is reduced, and certain protection is provided for the external environment.

Preferably, the first baffle extends along the length direction of the first side plate, and an arc-shaped surface for guiding limestone powder to one side far away from the first side plate is arranged on the side, far away from the bottom plate, of the first baffle.

Through the technical scheme, the first baffle is positioned on one side of the first side plate, and the limestone powder is gathered towards one side of the first side plate, so that the limestone powder is easy to fall onto the arc-shaped surface, and the arc-shaped surface can just guide the limestone powder to fall onto the bottom plate, and the limestone powder can be ensured to normally fall into the dust collecting groove from the opening of the dust conveying pipe; simultaneously first baffle also can shelter from the space between first curb plate and the bottom plate, reduces the limestone powder and enters into external environment from the space between first curb plate and the bottom plate.

Preferably, an opening at one end, close to the ground, of the dust feeding pipe is provided with a spraying device, a spraying head is arranged in the spraying device, and the spraying head faces one side of an inner cavity of the dust feeding pipe.

Through above-mentioned technical scheme, atomizer spun water smoke combines with the limestone powder that drops from dust conveying pipe opening part, makes the limestone powder condense into a group, reduces the condition that raise dust appears in the limestone powder, reduces the influence to external environment to can collect the limestone powder as far as possible in the dust collecting tank.

Preferably, still include second conveying pipeline and collection pipe, the second conveying pipeline is in the below of first conveying pipeline, and the one end of second conveying pipeline is connected on first conveying pipeline is close to one end on ground, and the other end of second conveying pipeline inclines and is in loading attachment directly over to ground one side, the collection pipe is installed on the lateral wall of second conveying pipeline orientation ground, the tip below that the collection pipe is close to ground is equipped with the silo that gathers materials, install the screen cloth that is used for sieving the tiny granule on the lateral wall of second conveying pipeline orientation ground, the inner chamber intercommunication of the inner chamber of the material collection pipe through screen cloth and second conveying pipeline.

Through above-mentioned technical scheme, carry out the separation of tiny granule once more to the lime stone after removing dust, make the lime stone of tiny granule need not reentrant breaker in carry out the breakage, avoid this part lime stone excessively broken and form the powder and be disposed in the course of working.

Preferably, the screen cloth has a plurality of, and a plurality of screen cloth is evenly distributed along the length direction of second conveying pipeline.

Through above-mentioned technical scheme, the area of single screen cloth can reduce, reduces the pressure of the lime stone that bears through the lifting surface area who reduces single screen cloth, makes the screen cloth be difficult to the crushing, and the filter area of whole screen cloth then keeps unchangeable, and the structural strength of second conveying pipeline obtains promoting equally.

In summary, compared with the prior art, the beneficial effects of the invention are as follows: the limestone raw material is screened before processing, and limestone powder and particles are recovered, so that the degree of dust raising phenomenon in the subsequent processing process is reduced, the production environment is improved, and the overall utilization rate of limestone is improved; the whole equipment utilizes the space in the vertical direction, occupies the ground space as little as possible, and is favorable for relieving the land shortage of enterprises.

Drawings

FIG. 1 is a schematic view of the overall structure of the embodiment;

FIG. 2 is a side view of the embodiment;

FIG. 3 is an enlarged view of A in FIG. 2;

FIG. 4 is a schematic structural view of a dust feeding pipe in the embodiment;

FIG. 5 is a partial sectional view in the embodiment;

FIG. 6 is a schematic view showing the distribution of the screen on the second feed conveyor pipe in the example.

Reference numerals: 1. feeding the material barrel; 2. a first feed delivery pipe; 21. filtering holes; 3. a dust feeding pipe; 31. a first side plate; 32. a second side plate; 33. a base plate; 331. a first baffle plate; 332. a second stopper; 333. a slider; 34. a cover plate; 35. a chute; 36. a vibration motor; 37. a top plate; 4. a second delivery pipe; 41. screening a screen; 5. a material collecting pipe; 6. a feeding device; 7. a spraying device; 71. a water delivery pipe; 72. a spray head; 8. a material collecting groove; 9. a dust collecting groove.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The utility model provides a limestone screening plant, as shown in figure 1, including feed cylinder 1 down, first conveying pipeline 2, send dirt pipe 3, second conveying pipeline 4, the collecting pipe 5, the collecting groove 8, loading attachment 6, first conveying pipeline 2 inclines to ground setting, the high one end of first conveying pipeline 2 is connected with feed cylinder 1 down, the one end intercommunication of the high low one end of first conveying pipeline 2 and second conveying pipeline 4, the other end of second conveying pipeline 4 inclines to ground one side, and the incline direction of second conveying pipeline 4 is opposite with the incline direction of first conveying pipeline 2, the tip department that first conveying pipeline 2 was kept away from to second conveying pipeline 4 is directly over loading attachment 6 and is close to loading attachment 6. The feeding device 6 is a conveyor belt, and the feeding device 6 can transport limestone falling onto the feeding device 6 into the crusher. The dust feeding pipe 3 is arranged on one side of the first material conveying pipe 2 facing the ground, the length direction of the dust feeding pipe 3 is the same as that of the first material conveying pipe 2, and the length of the dust feeding pipe 3 is larger than that of the first material conveying pipe 2. Referring to fig. 2, the end of the dust pipe 3 near the ground is above the dust collecting groove 9 after passing through the second material conveying pipe 4. The material collecting pipe 5 is arranged on the side wall, facing the ground, of the second material conveying pipe 4, the length of the material collecting pipe 5 is shorter than that of the second material conveying pipe 4, and a material collecting groove 8 is arranged below the end part, close to the ground, of the material collecting pipe 5.

Referring to fig. 1 and 4, the dust pipe 3 includes a first side plate 31, a second side plate 32, a bottom plate 33, a top plate 37 and a cover plate 34, the top plate 37 is connected to the first material conveying pipe 2, the top plate 37 is provided with a plurality of filtering holes 21, corresponding filtering holes 21 (not shown) are also provided on the side surface of the first material conveying pipe 2 facing the ground, and the inner cavity of the dust pipe 3 is communicated with the inner cavity of the first material conveying pipe 2 through the filtering holes 21. The length direction of the top plate 37 is the same as that of the first conveying pipeline 2, the cover plate 34 is arranged at one end of the top plate 37 far away from the ground, and the first side plate 31 and the second side plate 32 are both connected to the cover plate 34 and are respectively arranged at two sides of the top plate 37.

With reference to fig. 2 and 4, the width of the first side plate 31 is greater than that of the second side plate 32. Accordingly, the side of the first side panel 31 remote from the top panel 37 is closer to the ground than the side of the second side panel 32 remote from the top panel 37. The overall shape of the first side plate 31 is rectangular, and due to the need of avoiding the second conveying pipeline 4, the middle position of the second side plate 32 is bent towards one side of the second side plate 32, and the bent position of the second side plate 32 forms a side wall inclined relative to the first side plate 31 and can guide limestone dust to move towards one side of the first side plate 31. All be equipped with spout 35 on the relative surface of first curb plate 31 and second curb plate 32, two spouts 35 are the arc wall that uses apron 34 and bottom plate 33's articulated position as the center pin, and two spouts 35 all are close to the one end that dust conveying pipe 3 kept away from apron 34.

Referring to fig. 4 and 5, the bottom plate 33 is disposed between the first side plate 31 and the second side plate 32, the bottom plate 33 is disposed obliquely with respect to the ground, and a vibration motor 36 is disposed on a surface of the bottom plate 33 facing the ground. One side of the bottom plate 33 is attached to the corresponding side wall of the first side plate 31 and close to the side of the first side plate 31 facing the ground, and the other side of the bottom plate 33 is matched with the second side plate 32 in shape and close to the side of the second side plate 32 facing the ground, so that the bottom plate 33 is also obliquely arranged relative to the first side plate 31 and the second side plate 32. One end of the bottom plate 33 is hinged to the cover plate 34, two sliding blocks 333 are respectively arranged on two sides of the other end of the bottom plate 33, and the two sliding blocks 333 are respectively connected in the sliding grooves 35 of the first side plate 31 and the second side plate 32 in a sliding mode.

Referring to fig. 3 and 5, the bottom plate 33 is further provided with a first baffle 331 and a second baffle, the first baffle 331 is disposed along the length direction of the bottom plate 33, the first baffle 331 is tightly attached to the side wall of the first side plate 31, the height of the first baffle 331 is greater than the height of the chute 35 on the first side plate 31, the second baffle is block-shaped and covers the notch of the chute 35 on the second side plate 32, the opposite surfaces of the first baffle 331 and the second baffle are both provided with arc surfaces, and the arc surfaces are located on the side edges of the first baffle 331 and the second baffle far away from the bottom plate 33. When the bottom plate 33 slightly vibrates under the action of the vibration motor 36, the first baffle 331 always blocks the slot of the sliding slot 35 on the first side plate 31, and the second baffle always blocks the slot of the sliding slot 35 on the second side plate 32.

Referring to fig. 1 and 3, an opening at one end of the dust feeding pipe 3 close to the ground is provided with a spraying device 7, the spraying device 7 comprises a water conveying pipe 71 and a plurality of spraying heads 72, the water conveying pipe 71 is fixed on the top plate 37, and one end of the water conveying pipe 71 is connected to an external water storage tank. The plurality of spray heads 72 are sequentially arranged along the length direction of the water conveying pipe 71, and all the spray heads 72 face one side of the inner cavity of the dust conveying pipe 3.

Referring to fig. 1 and 6, a screen 41 for screening fine particles is installed on the side wall of the second material conveying pipe 4 facing the ground, and the inner cavity of the material collecting pipe 5 is communicated with the inner cavity of the second material conveying pipe 4 through the screen 41. The screen 41 is provided in plural, and the plural screens 41 are uniformly distributed along the length direction of the second feed conveyor pipe 4. The length of the screen 41 is smaller than the width of the second feed conveyor pipe 4, and adjacent screens 41 are located adjacent to the two side walls of the second feed conveyor pipe 4, respectively. Under the condition that the structural stability of the second material conveying pipe 4 is not influenced, the area of the screen 41 for screening limestone particles is increased, and the screening effect is improved.

In the actual operation process, limestone raw materials enter the first conveying pipe 2 through the lower charging barrel 1, the limestone raw materials roll to the second conveying pipe 4 along the first conveying pipe 2 under the action of self gravity, limestone powder is separated from the limestone raw materials in the process, most of the limestone powder can enter the dust conveying pipe 3 below through the filtering holes 21, the specific structure of the dust conveying pipe 3 enables the entering limestone powder to gradually converge to the corner formed by the first baffle 331 and the bottom plate 33 in the process of sliding down along the dust conveying pipe 3, and finally the limestone powder absorbs water mist generated by the spraying device 7 and falls into the dust collection groove 9 from the outlet of the dust conveying pipe 3. The limestone raw material entering the second conveying pipe 4 is sieved again by the screen 41 in the second conveying pipe 4, most of the fine particles and part of the remaining limestone powder are collected into the collecting chute 8 by the screen 41 and the collecting pipe 5, and finally the limestone raw material falls onto the feeding device 6 and is conveyed to the crusher by the feeding device 6.

The above description is intended to be illustrative of the present invention and not to limit the scope of the invention, which is defined by the claims appended hereto.

Claims

1. The utility model provides a screening plant of lime stone, includes feed cylinder (1), characterized by: also comprises a first material conveying pipe (2), a dust conveying pipe (3) and a feeding device (6), the first material conveying pipe (2) is arranged obliquely to the ground, one end of the first material conveying pipe (2) with high height is connected with the lower material barrel (1), one end of the first material conveying pipe (2) with low height is arranged above the feeding device (6), the dust feeding pipe (3) is arranged on one side of the first material conveying pipe (2) facing the ground, and the length direction of the dust feeding pipe (3) is the same as that of the first material conveying pipe (2), the side wall of the first material conveying pipe (2) facing the ground is provided with a plurality of filtering holes (21) for limestone powder to pass through, the plurality of filtering holes (21) are uniformly distributed on the corresponding side wall of the first material conveying pipe (2), all the filtering holes (21) are communicated with the inner cavity of the dust conveying pipe (3), a dust collecting groove (9) is arranged below one end of the dust conveying pipe (3) close to the ground; the dust conveying pipe (3) comprises a first side plate (31), a second side plate (32), a bottom plate (33) and a cover plate (34), wherein the side edges of one side of the first side plate (31) and one side of the second side plate (32) are connected to the first conveying pipe (2), the other side of the first side plate (31) is closer to the ground than the other side of the second side plate (32), the two side edges of the bottom plate (33) are respectively connected to the side edge of the first side plate (31) facing the ground and the side edge of the second side plate (32) facing the ground, and the cover plate (34) covers the end, away from the ground, of the first side plate (31), the second side plate (32) and the bottom plate (33); the bottom plate (33) is positioned between the first side plate (31) and the second side plate (32), and the bottom plate (33) is obliquely arranged relative to the ground; the filter holes (21) are positioned on the side close to the second side plate (32).

2. A limestone screening apparatus as claimed in claim 1 wherein: the utility model discloses a motor, including bottom plate (33), first curb plate (31) and second curb plate (32), bottom plate (33) are kept away from the tip on ground and are articulated on apron (34), be equipped with vibrating motor (36) on bottom plate (33), first curb plate (31) and second curb plate (32) are relative all be equipped with spout (35) on the surface, and two spout (35) are the arc wall that uses the articulated position of apron (34) and bottom plate (33) as the center pin, all be equipped with on the both sides of bottom plate (33) with corresponding side spout (35) assorted slider (333), slider (333) sliding connection is in spout (35) of corresponding side.

3. A limestone screening apparatus as claimed in claim 2 wherein: the novel anti-theft door is characterized in that a first baffle (331) and a second baffle are arranged on two sides of the bottom plate (33), the first baffle (331) covers a notch of the sliding groove (35) of the first side plate (31), and the second baffle covers a notch of the sliding groove (35) of the second side plate (32).

4. A limestone screening apparatus as claimed in claim 3 wherein: the first baffle (331) extends along the length direction of the first side plate (31), and an arc-shaped surface which guides limestone powder to one side far away from the first side plate (31) is arranged on the side, far away from the bottom plate (33), of the first baffle (331).

5. A limestone screening apparatus as claimed in claim 1 wherein: an opening of one end, close to the ground, of the dust feeding pipe (3) is provided with a spraying device (7), a spraying head (72) is arranged in the spraying device (7), and the spraying head (72) faces one side of an inner cavity of the dust feeding pipe (3).

6. A limestone screening apparatus as claimed in claim 1 wherein: still include second conveying pipeline (4) and collection pipe (5), second conveying pipeline (4) are in the below of first conveying pipeline (2), and the one end of second conveying pipeline (4) is connected on first conveying pipeline (2) is close to one end on ground, and the other end of second conveying pipeline (4) inclines to ground one side and is in loading attachment (6) directly over, collection pipe (5) are installed on second conveying pipeline (4) towards the lateral wall on ground, the tip below that collection pipe (5) are close to ground is equipped with material collecting tank (8), install screen cloth (41) that are used for sieving fine and small granule on second conveying pipeline (4) towards the lateral wall on ground, the inner chamber intercommunication of material collecting pipe (5) through screen cloth (41) and second conveying pipeline (4).

7. A limestone screening apparatus as claimed in claim 6 wherein: the screen cloth (41) have a plurality ofly, and a plurality of screen cloth (41) are along the length direction evenly distributed of second conveying pipeline (4).