CN111299144A

CN111299144A - Screening is with even distributing device

Info

Publication number: CN111299144A
Application number: CN202010245199.XA
Authority: CN
Inventors: 刘奇; 孙庆忠; 杨节方
Original assignee: Jinan Zhongran Science & Technology Development Co ltd
Current assignee: Jinan Zhongran Science & Technology Development Co ltd
Priority date: 2020-03-31
Filing date: 2020-03-31
Publication date: 2020-06-19

Abstract

The invention relates to the field of vibrating screens, in particular to a uniform distribution device for screening, which can improve the uniformity of materials before entering a vibrating screen during screening, ensure that the working state of the vibrating screen is more balanced, reduce unbalance loading and improve screening efficiency. The utility model provides a screening is with even distributing device, includes the casing, the casing top sets up the feed inlet, and the casing below sets up the discharge gate, feed inlet and discharge gate all set up between two parties, the cloth mouth is connected to the feed inlet below, cloth mouth quantity is no less than two, and sets up about cloth mouth direction on the contrary, and the discharge gate is equipped with first buffering baffle in the left and right sides, set up adjusting device in the casing. The first buffer baffle buffers the falling speed of the material, balances the material and reduces the impact and friction of the material on the shell.

Description

Screening is with even distributing device

Technical Field

The invention relates to the field of vibrating screens, in particular to a uniform material distribution device for screening.

Background

The vibrating screen is a screening device widely applied, in particular to the fields of metallurgical industry, such as blast furnace ironmaking, ore screening and the like. The vibrating screen operates by utilizing reciprocating rotary type vibration generated by vibrator excitation. The upper rotary heavy hammer of the vibrator makes the screen surface generate plane rotation or reciprocating vibration, and the materials to be screened continuously raise and fall, so that the effect of rapidly screening the materials with different volumes is realized.

The large-scale shale shaker area is great usually, if the cloth is inhomogeneous when the material loading, then can lead to the regional material of part of shale shaker too much, too thick, seriously influence screening efficiency, can cause the shale shaker unbalance loading simultaneously, aggravate the local wear of shale shaker, also can exert an influence to the balance of equipment.

The chinese patent No. ZL201620422875.5 discloses a double-mass vertical vibration anti-resonance screen, which is arranged in bilateral symmetry in the length direction, so that the requirement for material distribution is higher during material loading, and a technical scheme for distributing materials according to the above scheme is absent at present.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides the uniform distribution device for screening, which can improve the uniformity of materials before entering the vibrating screen during screening, ensure that the working state of the vibrating screen is more balanced, reduce unbalance loading and improve the screening efficiency.

The scheme provided by the invention is as follows:

the utility model provides a screening is with even distributing device, includes the casing, the casing top sets up the feed inlet, and the casing below sets up the discharge gate, feed inlet and discharge gate all set up between two parties, the cloth mouth is connected to the feed inlet below, cloth mouth quantity is no less than two, and sets up about cloth mouth direction on the contrary, and the discharge gate is equipped with first buffering baffle in the left and right sides, set up adjusting device in the casing.

The cloth material mouth divides the material to the left and right sides, first buffering baffle can block the material that the part is falling, the speed that the material slowed down the whereabouts in first buffering baffle department, play certain balancing act when the material whereabouts is inhomogeneous on the one hand, on the other hand by the material that blocks play the guard action to the casing, prevented that the material from causing impact and friction in succession to the casing under the action of gravity, thereby improve the casing life-span, adjusting device can play the regulating action when the material whereabouts, make the material whereabouts more even.

Preferably, the upper part of the shell is provided with a feeding channel, the feeding hole is formed in the top of the feeding channel, and the material distribution hole is formed in the lower part of the feeding channel. The feeding channel plays a certain buffering role, and meanwhile, the materials can flow according to a fixed track and then are distributed.

Preferably, the cloth openings in different directions are staggered in the front-back direction. The material distributing openings are arranged in the left and right directions in an opposite mode, so that materials can be uniformly distributed in the left and right directions, the material distributing openings in different directions are arranged in a staggered mode, and the materials can be uniformly distributed in the front and back directions.

Preferably, the adjusting device comprises a first adjusting plate arranged in the feeding channel, and the first adjusting plate is horizontally and slidably connected with the feeding channel. The first adjusting plate adjusts the material flowing when the material enters the material distributing device, so that the material is uniformly distributed to different material distributing openings as far as possible.

Preferably, adjusting device is including setting up the second regulating plate in cloth mouth below, two are no less than to the second regulating plate, and second regulating plate and casing horizontal sliding connection. The second adjusting plate adjusts materials in the middle of the distributing device, and uniform falling of the materials is guaranteed.

Preferably, the second adjusting plate is connected with the control device through a transmission device. Because the regulation of second regulating plate is bigger to the evenly distributed influence of follow-up material, the second regulating plate passes through controlling means control, conveniently adjusts at any time.

Preferably, the transmission device is of a gear rack structure, and the control device is a hand wheel. The hand wheel and the gear rack are simple and reliable, and the operation is convenient.

Preferably, two second adjusting plates are provided with a second buffer baffle on the opposite side, auxiliary baffles are arranged on the other three sides, and the height of each auxiliary baffle is larger than that of each second buffer baffle. The second buffer baffle has the same effect as the first buffer baffle, the material flow speed is reduced, the material is ensured to fall uniformly, and the auxiliary baffle can prevent the material from falling in other directions.

Preferably, the cloth material mouth below sets up the transition material mouth, the transition material mouth sets up between two parties, and the left and right sides is equipped with the middle part and connects the flitch, and transition material mouth edge sets up third buffer stop. The transition material port plays a role in buffering, so that the bounce and impact are reduced when the material falls, and the subsequent device is convenient to distribute the material.

Preferably, a pre-screening device is arranged above the discharge port and comprises a distribution hopper and a screening plate arranged above the distribution hopper. The pre-screening device can be used for primarily screening materials with different sizes.

Preferably, a plurality of downward-inclined sieve bars are arranged on the left side and the right side of the sieve plate respectively, and gaps between the sieve bars are gradually increased towards the directions of the two sides of the sieve plate. Through the change in space, make the tiny particle material fall in advance, the tiny particle material is located the large granule material below when falling the shale shaker, has optimized the screening effect, has avoided blockking the condition that can't sieve because of tiny particle material is blockked by the large granule material when above.

Preferably, the opening above the material separating funnel is positioned below the screen bars. The material distributing hopper is used for receiving small-particle materials, so that the small-particle materials directly fall down in the middle without passing through the first buffer baffle.

Preferably, a plurality of funnel outlets are arranged below the material separating funnel, the funnel outlets respectively point to the left side and the right side, and the funnel outlets point to different sides and are arranged in a staggered mode. The staggered funnel outlets can uniformly distribute the materials in the left-right direction and the front-back direction.

The invention has the beneficial effects that:

1. the materials are buffered and flow direction adjusted for many times, so that the materials are more uniformly distributed during feeding;

2. the material distribution is adjusted in the left direction, the right direction, the front direction and the rear direction, so that the material distribution is more uniform, and the vibrating screen is more suitable for large vibrating screens symmetrical in the length direction;

3. the buffer baffles have the effects of uniformly distributing materials and slowing down the flow speed, and simultaneously have the protection effect on the shell, so that the damage to the shell caused by the impact and friction of the materials is reduced, and the service life of the equipment is prolonged;

4. the adjusting device can be adjusted at any time according to the falling condition of the materials, so that the materials are ensured to be uniform when falling;

5. the pre-screening device can preliminarily screen materials with different sizes, so that the small materials fall down in advance, and can be positioned at the lower side when falling to the vibrating screen, and the screening effect of the vibrating screen is optimized.

Drawings

In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present invention, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

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

FIG. 2 is an enlarged schematic view at A in FIG. 1;

FIG. 3 is a side view of the present invention;

FIG. 4 is a top view of the present invention;

in the figure, 1-shell, 2-feeding channel, 3-transition material port, 4-second adjusting plate, 5-sieve plate, 6-material separating funnel, 11-feeding port, 12-discharging port, 13-first buffer baffle, 21-first adjusting plate, 22, 23-material distributing port, 31-middle material receiving plate, 32-third buffer baffle, 41-second buffer baffle, 42-auxiliary baffle, 43-transmission device, 44-control device, 51-sieve bar and 61-funnel outlet.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 to 4, the embodiment discloses a uniform distribution device for screening, which includes a casing 1, a feed inlet 11 is disposed at an upper portion of the casing 1, a discharge outlet 12 is disposed at a bottom of the casing 1, and first buffer baffles 13 are disposed at two sides of the discharge outlet 12. The upper portion of the shell 1 is provided with a feeding channel 2, the feeding hole 11 is arranged on the feeding channel 2, a first adjusting plate 21 is arranged in the feeding channel 2, and the first adjusting plate 21 is connected with the feeding channel 2 in a horizontal sliding mode. Two

cloth openings

22 and 23 which are opposite in left and right direction and staggered in front and back are arranged at the lower part of the feed channel 2.

The feed channel 2 below sets up

transition material mouth

3, and 3 both sides of transition material mouth connect flitch 31 for the middle part, and 3 edges of transition material mouth set up third buffer stop 32. Second regulating plate 4 is set up below the transition material mouth 3, and second regulating plate 4 is two, and bilateral symmetry sets up, with casing 1 horizontal sliding connection. The second buffer baffle 41 is arranged on the opposite side of the two second adjusting plates 4, the auxiliary baffle 42 is arranged on the other three sides, and the height of the auxiliary baffle 42 is larger than that of the second buffer baffle 41. The second buffer baffle 4 is connected with a control device 44 through a transmission device 43, the transmission device 43 is of a gear and rack structure, the control device 44 is a hand wheel, and the control device 44 is arranged on the outer side of the shell 1.

A pre-screening device is arranged above the discharge port 12, the pre-screening device comprises a screening plate 5 and a distribution hopper 6, and the screening plate 5 is arranged above the distribution hopper 6. Both sides all set up a plurality of grate bars 51 about sieve flitch 5, and grate bar 51 downward sloping sets up. There is a gap between adjacent screen bars 51, and the gap gradually increases towards both sides of the screen material plate 5. Some gaps or all gaps are located right above the material separating funnel 6, a plurality of funnel outlets 61 are arranged below the material separating funnel 6, the funnel outlets 61 point to the left side and the right side respectively, and the funnel outlets 61 in different directions are arranged in a staggered mode in sequence.

The working principle of the invention is as follows:

the material gets into feedstock channel 2 from feed inlet 11, flows to two directions respectively at

cloth mouth

22, 23, and

cloth mouth

22, 23 staggered arrangement, and the even falling of material. The material falls on the middle material receiving plate 31 and is stacked, and when the stacking height exceeds the third buffer 32 baffle, the material falls along the transition material port 3 and falls on the second adjusting plate 4. The materials fall on the screen plate 5 after passing through the second buffer baffle 41, and the materials fall to the left and right sides on the screen plate 5. The smaller particles fall into the distribution hopper 6 in the spaces between the screen bars 51 and fall at the discharge opening 12 onto the vibrating screen. The material with larger particles falls on the outer side of the first buffer baffle 13, is discharged from the discharge hole 12 after being stacked, and falls on the small particle material.

In the present embodiment, the directions "up", "down", "left" and "right" are based on the direction shown in fig. 1 of the drawings, and the directions "front" and "rear" are based on the direction shown in fig. 4 of the drawings.

Although the present invention has been described in detail by referring to the drawings in connection with the preferred embodiments, the present invention is not limited thereto. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the spirit and scope of the invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a screening is with even distributing device, includes casing (1), casing (1) top sets up feed inlet (11), and casing (1) below sets up discharge gate (12), its characterized in that: feed inlet (11) and discharge gate (12) all set up between two parties, the cloth mouth is connected to feed inlet (11) below, two are no less than to cloth mouth quantity, and set up about cloth mouth direction opposite, and discharge gate (12) are equipped with first buffer stop (13) in both sides about, set up adjusting device in casing (1).

2. The uniform distribution device for screening of claim 1, wherein: casing (1) upper portion sets up feedstock channel (2), feed inlet (11) set up at feedstock channel (2) top, the cloth material mouth sets up in feedstock channel (2) lower part.

3. A uniform distribution device for screening according to claim 1 or 2, characterized in that: the direction is different cloth material mouthful crisscross setting in front and back direction.

4. The uniform distribution device for screening according to claim 2, wherein: the adjusting device comprises a first adjusting plate (21) arranged in the feeding channel (2), and the first adjusting plate (21) is horizontally and slidably connected with the feeding channel (2).

5. The uniform distribution device for screening of claim 1, wherein: adjusting device is including setting up second regulating plate (4) in cloth mouth below, two are no less than in second regulating plate (4), second regulating plate (4) and casing (1) horizontal sliding connection.

6. The uniform distribution device for screening of claim 5, wherein: the second adjusting plate (4) is connected with a control device (44) through a transmission device (43).

7. The uniform distribution device for screening of claim 6, wherein: the transmission device (32) is of a gear rack structure, and the control device (44) is a hand wheel.

8. The uniform distribution device for screening of claim 5, wherein: two second adjusting plate (4) relative one side sets up second buffering baffle (41), and the other three sides sets up supplementary baffle (42), supplementary baffle (42) height is greater than second buffering baffle (41).

9. The uniform distribution device for screening of claim 1, wherein: cloth material mouthful below sets up transition material mouth (3), transition material mouth (3) set up between two parties, and the left and right sides is equipped with the middle part and connects flitch (31), and transition material mouth (3) edge sets up third buffer stop (32).

10. The uniform distribution device for screening of claim 1, wherein: and a pre-screening device is arranged above the discharge port (12), and comprises a distribution hopper (6) and a screening plate (5) arranged above the distribution hopper (6).

Preferably, the left side and the right side of the sieve plate (5) are respectively provided with a plurality of downward-inclined sieve bars (51), and gaps among the sieve bars (51) are gradually increased towards the directions of the two sides of the sieve plate (5).

Preferably, the upper opening of the distributing hopper (6) is positioned below the screen bars (51).

Preferably, a plurality of funnel outlets (61) are arranged below the material separating funnel (6), the funnel outlets (61) respectively point to the left side and the right side, and the funnel outlets (61) pointing to different sides are arranged in a staggered mode.