CN213494875U

CN213494875U - High-efficient double-deck vibration screening plant

Info

Publication number: CN213494875U
Application number: CN202022433576.0U
Authority: CN
Inventors: 龙志强; 傅晓磊
Original assignee: Dengfeng Longde Silica Sand Co ltd
Current assignee: Dengfeng Longde Silica Sand Co ltd
Priority date: 2020-10-28
Filing date: 2020-10-28
Publication date: 2021-06-22
Anticipated expiration: 2030-10-28

Abstract

The utility model relates to the field of screening machines, in particular to a high-efficiency double-layer vibration screening device, which comprises a base, a supporting frame, a screen body, a first material receiving channel and a second material receiving channel; a plurality of support frames are fixedly arranged at the top of the base, and a screen body is fixedly arranged at the top of each support frame; the screen body comprises a screen box, a first screen, a first vibration exciter, a second screen and a second vibration exciter; two side walls of the screen box are respectively and fixedly connected with the top of the support frame; a first screen and a second screen are sequentially arranged in the screen box from top to bottom, and the screen hole diameter of the first screen is larger than that of the second screen; the top of the screen box is provided with a first vibration exciter, and the transmission end of the first vibration exciter is in transmission connection with the first screen; a second vibration exciter is arranged on the side wall of the screen box, and the transmission end of the second vibration exciter is in transmission connection with the second screen; through the screening structure who sets up two screens, two vibration sources, can realize batching, reposition of redundant personnel screening operation to the material to promote screening operating efficiency.

Description

High-efficient double-deck vibration screening plant

Technical Field

The utility model relates to a screening machine field, concretely relates to high-efficient double-deck vibration screening plant's technical field of structure.

Background

The linear vibrating screen utilizes the vibration of a vibrating motor as a vibration power source to enable materials to be thrown up on a screen and to move forwards in a linear mode, the materials uniformly enter a feeding hole of the screening machine from a feeding machine, and oversize materials and undersize materials of various specifications are generated through multiple layers of screen meshes and are respectively discharged from respective outlets. The device has the advantages of low energy consumption, high yield, simple structure, easy maintenance, totally-enclosed structure, no dust overflow and automatic discharge, and is more suitable for assembly line operation.

In the operation process of the vibrating screen, when the amount of materials to be screened is too large, the screening efficiency is reduced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high-efficient double-deck vibration screening plant sets up the screening structure in two screen meshes, dual vibration sources, can realize batching, reposition of redundant personnel screening operation to the material to promote screening operating efficiency.

In order to solve the technical problem, the utility model adopts the following technical scheme:

the efficient double-layer vibrating screening device comprises a base, a support frame, a screen body, a first material receiving channel and a second material receiving channel; a plurality of support frames are fixedly arranged at the top of the base, and a screen body is fixedly arranged at the top of each support frame; the screen body comprises a screen box, a first screen, a first vibration exciter, a second screen and a second vibration exciter; two side walls of the screen box are respectively and fixedly connected with the top of the support frame; a first screen and a second screen are sequentially arranged in the screen box from top to bottom, and the screen hole diameter of the first screen is larger than that of the second screen; the top of the screen box is provided with a first vibration exciter, and the transmission end of the first vibration exciter is in transmission connection with the first screen; a second vibration exciter is arranged on the side wall of the screen box, and the transmission end of the second vibration exciter is in transmission connection with the second screen; a first material receiving channel and a second material receiving channel are respectively arranged at the discharge end of the screen body, and the feed end of the first material receiving channel is communicated with the discharge end of the undersize of the second screen; the feeding end of the second material receiving channel is communicated with the discharging end of the screen mesh of the first screen mesh and the discharging end of the oversize material of the second screen mesh respectively.

Further, the working frequency of the second vibration exciter is greater than that of the first vibration exciter.

Furthermore, a plurality of second vibration exciters are uniformly arranged along the arrangement mode of the second screen, and the transmission ends of the second vibration exciters are in transmission connection with the second screen respectively.

Further, a receiving hopper is arranged at the feeding end of the screen body.

Further, the support frame includes pillar, damping spring and connecting block, along vertical direction, sets up the pillar at the top of base, at the fixed damping spring that sets up in the top of pillar, at the fixed connecting block that sets up in damping spring's top, connecting block and the lateral wall fixed connection of sieve case.

Furthermore, a reinforcing plate is arranged at the bottom of the support column, and two adjacent side edges of the reinforcing plate are fixedly connected with the side wall of the support column and the top of the base respectively.

Compared with the prior art, the utility model discloses can reach one of following beneficial effect at least:

1. through the screening structure who sets up two screens, two vibration sources, can realize batching, reposition of redundant personnel screening operation to the material to promote screening operating efficiency.

2. A plurality of second vibration exciters are arranged, so that the screening efficiency can be effectively improved.

3. The material receiving hopper is arranged, so that the impact damage of large particles to the screen surface can be reduced.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural view of an embodiment of the middle material receiving channel of the present invention.

In the figure: 1-a base; 2-a support frame; 21-a pillar; 22-a damping spring; 23-connecting blocks; 24-a reinforcement plate; 3-a sieve body; 31-a sieve box; 32-a reinforcement column; 33-a first screen; 34-a first exciter; 35-a second screen; 36-a second exciter; 37-a receiving hopper; 41-a first material receiving channel; 42-a second receiving channel.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Example 1:

as shown in fig. 1-2, the efficient double-layer vibrating screening device includes a base 1, a support frame 2, a screen body 3, a first material receiving channel 41 and a second material receiving channel 42; a plurality of support frames 2 are fixedly arranged at the top of the base 1, and a screen body 3 is fixedly arranged at the top of each support frame 2; the screen body 3 comprises a screen box 31, a first screen 33, a first exciter 34, a second screen 35 and a second exciter 36; two side walls of the screen box 31 are respectively fixedly connected with the top of the support frame 2; a first screen 33 and a second screen 35 are sequentially arranged in the screen box 31 from top to bottom, and the screen hole diameter of the first screen 33 is larger than that of the second screen 35; a first vibration exciter 34 is arranged at the top of the screen box 31, and the transmission end of the first vibration exciter 34 is in transmission connection with the first screen 33; a second vibration exciter 36 is arranged on the side wall of the screen box 31, and the transmission end of the second vibration exciter 36 is in transmission connection with the second screen 35; a first material receiving channel 41 and a second material receiving channel 42 are respectively arranged at the discharging end of the screen body 3, and the feeding end of the first material receiving channel 41 is communicated with the discharging end of the undersize of the second screen 35; the feeding end of the second material receiving channel 42 is respectively communicated with the discharging end of the screen mesh of the first screen mesh 33 and the discharging end of the oversize material of the second screen mesh 35. The first vibration exciter 34 may be an eccentric block vibration exciter, and the second vibration exciter 36 may be an electromagnetic vibration exciter, and is respectively in transmission connection with a corresponding screen (screen frame) to provide a power source for the screen vibration.

During operation, after the materials to be screened fall into the screen box 31, the materials are primarily screened by the first screen 33, then the larger particulate materials are screened out, conveyed to the discharge end along the screen and finally enter the second material receiving channel 42; the undersize products screened by the first screen 33 are a mixture of small particles and medium particles, the mixture is screened by the second screen 35, the medium particles are intercepted by the second screen 35 and then enter the second material receiving channel 42 along the second screen 35, and the small particles are screened by the second screen 35 and then fall into the first material receiving channel 41 along the bottom of the screen box 31; after the large granule thing separation through first screen cloth 33, the rethread second screen cloth 35 is with well particulate matter separation, realizes batching, the reposition of redundant personnel screening of material to reduce the operating pressure of first screen cloth 33, also reduced the striking damage risk of the large granule thing that second screen cloth 35 bore, consequently, can promote the efficiency of screening operation.

Example 2:

as shown in fig. 1-2, the present embodiment optimizes the vibration source for the above-described embodiments.

The working frequency of the second vibration exciter 36 in the high-efficiency double-layer vibrating screen device is greater than that of the first vibration exciter 34. Considering that the particles of the material screened by the second screen 35 are smaller, the screening efficiency can be improved by selecting a vibration source with higher vibration frequency; the screening operation of different frequency vibrations can be carried out to different granularity materials to the while, has promoted the operating efficiency who sieves.

When the frequency of vibration of the second exciter 36 is much greater than the frequency of vibration of the first exciter 34, the interaction between the two is not sufficient to prevent effective continuation of the screening operation.

Example 3:

as shown in fig. 1 to 2, with the above embodiment, the present embodiment optimizes the number of the second exciters.

This high-efficient double-deck vibrating screen divides the device edge second screen cloth 35's the mode of setting evenly sets up a plurality of second vibration exciters 36, and the transmission end of a plurality of second vibration exciters 36 is connected with second screen cloth 35 transmission respectively. Considering that the second screen 35 is long, and the working frequency of the second vibration exciter 36 is high, which is not beneficial to the large-area transmission of the vibration source, therefore, the second vibration exciters 36 are uniformly arranged, so that the uniformity and the continuous vibration performance of the screen surface of the second screen 35 can be improved, and the screening efficiency of the second screen 35 can be improved.

Example 4:

as shown in fig. 1-2, this example optimizes the feed structure for the above embodiment.

In the high-efficiency double-layer vibrating screen device, the feed end of the screen body 3 is provided with a receiving hopper 37. Preferably, a third screen is arranged in the receiving hopper 37, and the aperture of the third screen is larger than that of the first screen, so that larger particles can be trapped in the receiving hopper 37, and the impact damage of the large particles to the screen is reduced; and connect hopper 37 and sieve case 31 fixed connection, the vibration of sieve case 31 can be transmitted and connect hopper 37 to also be convenient for connect the ejection of compact of material in the hopper 37.

Example 5:

as shown in fig. 1 to 2, the present embodiment optimizes the shock-absorbing structure for the above-described embodiment.

This support frame 2 includes pillar 21, damping spring 22 and connecting block 23 among high-efficient double-deck vibration screening device, along vertical direction, sets up pillar 21 at the top of base 1, at the fixed damping spring 22 that sets up in pillar 21's top, at the fixed connecting block 23 that sets up in damping spring 22's top, connecting block 23 and sieve case 31's lateral wall fixed connection. The supporting frame 2 can reduce the vibration influence generated in the operation process of the screen body 3.

Example 6:

as shown in fig. 1 to 2, the present embodiment optimizes the connection structure for the above-described embodiment.

This high-efficient double-deck vibrating screen device is in the bottom of pillar 21 sets up reinforcing plate 24, and two adjacent sides of reinforcing plate 24 respectively with the lateral wall of pillar 21 and the top fixed connection of base 1. The reinforcing plate 24 may have a right-angled triangular structure, which may improve the connection stability and the service life of the strut 21.

Preferably, a plurality of reinforcing retainers 32 are arranged in the screen box 31, and two ends of each reinforcing retainer 32 are fixedly connected with two side walls of the screen box 31 respectively, so that the stability of screening operation of the screening machine can be improved.

Although the invention has been described herein with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this invention. More specifically, various variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure, the drawings and the appended claims. In addition to variations and modifications in the component parts and/or arrangements, other uses will also be apparent to those skilled in the art.

Claims

1. High-efficient double-deck vibration screening device, its characterized in that: comprises a base (1), a support frame (2), a screen body (3), a first material receiving channel (41) and a second material receiving channel (42); a plurality of support frames (2) are fixedly arranged at the top of the base (1), and a screen body (3) is fixedly arranged at the top of each support frame (2); the screen body (3) comprises a screen box (31), a first screen (33), a first vibration exciter (34), a second screen (35) and a second vibration exciter (36); two side walls of the screen box (31) are respectively fixedly connected with the top of the support frame (2); a first screen (33) and a second screen (35) are sequentially arranged in the screen box (31) from top to bottom, and the screen hole diameter of the first screen (33) is larger than that of the second screen (35); a first vibration exciter (34) is arranged at the top of the screen box (31), and the transmission end of the first vibration exciter (34) is in transmission connection with the first screen (33); a second vibration exciter (36) is arranged on the side wall of the screen box (31), and the transmission end of the second vibration exciter (36) is in transmission connection with a second screen (35); a first material receiving channel (41) and a second material receiving channel (42) are respectively arranged at the discharging end of the screen body (3), and the feeding end of the first material receiving channel (41) is communicated with the discharging end of the undersize of the second screen (35); the feeding end of the second material receiving channel (42) is respectively communicated with the discharging end of the oversize net of the first screen mesh (33) and the discharging end of the oversize material of the second screen mesh (35).

2. The high efficiency dual deck vibratory screening apparatus of claim 1, wherein: the operating frequency of the second exciter (36) is greater than the operating frequency of the first exciter (34).

3. The high efficiency dual deck vibratory screening apparatus of claim 1, wherein: and a plurality of second vibration exciters (36) are uniformly arranged along the arrangement mode of the second screen (35), and the transmission ends of the second vibration exciters (36) are respectively in transmission connection with the second screen (35).

4. The high efficiency dual deck vibratory screening apparatus of claim 1, wherein: a receiving hopper (37) is arranged at the feeding end of the screen body (3).

5. The high efficiency dual deck vibratory screening apparatus of claim 1, wherein: support frame (2) include pillar (21), damping spring (22) and connecting block (23), along vertical direction, set up pillar (21) at the top of base (1), at the fixed damping spring (22) that sets up in top of pillar (21), at the fixed connecting block (23) that sets up in top of damping spring (22), connecting block (23) and the lateral wall fixed connection of sieve case (31).

6. An efficient dual deck vibratory screening apparatus as set forth in claim 5 wherein: and a reinforcing plate (24) is arranged at the bottom of the strut (21), and two adjacent side edges of the reinforcing plate (24) are respectively fixedly connected with the side wall of the strut (21) and the top of the base (1).