CN209646942U - A kind of solid material centrifugation screening plant - Google Patents

Abstract

The utility model relates to a kind of solid materials to be centrifuged screening plant, comprising: feeding mechanism, sorting mechanism and screw rod, wherein feeding mechanism includes feeding funnel and feeding-passage；Sorting mechanism includes the first rotary screen being sequentially connected in series and second tin roller sieve；Screw rod runs through feeding-passage and the first rotary screen from the starting of the lower section of feeding funnel, and extends in second tin roller sieve.Compared with prior art, the utility model can realize the screening step by step of material by two-stage rotary screen, and the material that the two batches grain size specification can be made different is supplied respectively to be crushed step by step to different pulverizers with this, can obviously accelerate the process crushed；It is assembled using 4 aperture semicircular cylinder sieves, the efficiency of screening is improved, can carry out flexibly exchanging design layout；Provided with the guide fin opposite with the inclined direction of screw rod blade, it can be achieved that smashing in advance for material, improves the utilization rate of material, and produce apparent guiding role, finally promote crush efficiency.

Description

A solid material centrifugal screening device

technical field

The utility model relates to a screening device, in particular to a solid material centrifugal screening device.

Background technique

During the feed processing and production process, the materials entering the pulverizer have problems such as high viscosity and high humidity, which lead to poor pulverization effect, especially the agglomerated feed, which will seriously affect the pulverization process, resulting in different sizes of pulverized particles, reducing the feed quality. On the other hand, agglomerated feed will distort and deform the cutter head of the grinder, which has a great impact on the life of the grinder.

At present, pretreatment is usually carried out before the feed is crushed. The commonly used pretreatment process is to use a stirring wheel to break up or use a sieving machine to sieve. Among them, the dispersing process cannot completely break up the agglomerated material, and the commonly used sieving machine often has the situation that the sieve hole is blocked, resulting in a layer of stagnant material layer accumulated on the sieve, which greatly reduces the process efficiency of the sieving material and cannot There is no need to increase multiple screening machines to work at the same time.

Contents of the invention

The purpose of this utility model is to provide a solid material centrifugal screening device in order to overcome the above-mentioned defects in the prior art.

The purpose of this utility model can be achieved through the following technical solutions:

A centrifugal screening device for solid materials, comprising: a feeding mechanism, a screening mechanism and a screw, wherein the feeding mechanism includes a feeding funnel and a feeding channel, and the feeding funnel communicates with the inlet of the feeding channel; the screening mechanism includes The first drum sieve and the second drum sieve are connected in series in sequence, the first drum sieve is communicated with the feeding channel, one end of the second drum sieve is communicated with the first drum sieve, and the other end is provided with a waste discharge port, The outside of the first trommel and the second trommel is provided with a second motor for driving them to rotate, and the exterior of the first trommel and the second trommel is provided with a material retaining cover with a lower opening; the screw is self-feeding The bottom of the material funnel starts to pass through the feed channel and the first drum screen, and extends into the second drum screen, and the end of the screw near the feed channel is connected with a first motor.

Further, the middle part of the first trommel screen and the second trommel screen is provided with a grid baffle plate, and the middle part of the grid baffle plate is provided with a through hole, and the screw rod passes through the through hole and extends to the second drum Sieve inside.

Further, the first trommel and the second trommel are provided with detachable screens.

Further, the screen is formed by two symmetrical cylindrical plates spliced together by bolts.

Further, the material retaining cover is fixed on the outer wall of the feed channel, and there is a space between the first drum screen and the second drum screen outer wall between the described material retaining cover and the first drum screen and the second drum screen. Turning gap.

Further, a strip-shaped opening parallel to the axial direction is opened under the material blocking cover.

Further, the rotation direction of the first drum screen and the second drum screen is opposite to that of the screw, and the inner walls of the first drum screen and the second drum screen are provided with inclined guide fins, and the guide fins The direction of inclination is opposite to the direction of inclination of the blades on the screw.

Compared with the prior art, the utility model has the following advantages:

1) The step-by-step screening of materials is realized through two-stage drum screens. The first drum screen and the second drum screen are composed of 4 pieces of semi-cylindrical screens, and the four screens are fastened together by bolts, which can realize shutdown After the quick release to replace the screen.

2) The detachable screen can be designed as a layout with different sieve hole sizes, so that the discharge particle sizes of the first drum screen and the second drum screen are different, and the outlets below the two can obtain materials with different particle sizes respectively In this way, the two batches of materials with different particle sizes and specifications can be supplied to different pulverizers respectively, so as to carry out step-by-step pulverization, which can obviously speed up the pulverization process.

3) Guide fins opposite to the inclination direction of the blades on the screw are set inside the first drum screen and the second drum screen, and the rotation direction of the first drum screen and the second drum screen is preset to be opposite to that of the screw rod, so that the first drum screen The materials in the drum screen and the second drum screen can be crushed by the guide fins and guided by the guide fins, and then transferred from the first drum screen to the second drum screen, and the agglomerated waste materials are finally guided to the Waste materials are discharged out of the outlet, so that the overall efficiency is improved, and the quality after screening is significantly improved.

Description of drawings

Fig. 1 is the specific structural representation of solid material centrifugal screening device in the utility model;

Fig. 2 is a schematic diagram of the bottom surface structure of the drum sieve of the present invention;

Fig. 3 is a schematic cross-sectional structure diagram of the drum screen of the present invention.

In the figure: 1. Feeding funnel, 2. First motor, 3. Screw, 4. Second motor, 5. Waste discharge port, 6. First drum screen, 7. Second drum screen, 8. Grid baffle , 9, guide fins, 10, retaining cover, 11, feed channel, 61, fixed plate, 62, bolts.

Detailed ways

The utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

Example

The solid material centrifugal screening device includes a feeding mechanism, a screening mechanism and a screw 3.

Feeding mechanism part: referring to FIG. 1 , it includes a feeding funnel 1 and a feeding channel 11 , and the feeding funnel 1 communicates with the inlet of the feeding channel 11 .

Screening mechanism part: see Figure 1, including the first trommel 6 and the second trommel 7 connected in series in sequence, the first trommel 6 communicates with the feed channel 11, and one end of the second trommel 7 communicates with the first trommel 6 , the other end is provided with a waste discharge port 5, the first drum 6 and the second drum 7 are provided with a second motor 4 for driving the two to rotate, and the first drum 6 and the second drum 7 are provided with a lower part The material blocking cover 10 of opening. The middle part of the first trommel 6 and the second trommel 7 is provided with a grid baffle 8, and the middle of the grid baffle 8 is provided with a through hole, and the screw rod 3 penetrates the through hole and extends to the inside of the second trommel 7. Both the first trommel 6 and the second trommel 7 are provided with detachable screens. During specific implementation, the screen is formed by two symmetrical cylindrical plates fixed and spliced by bolts, and the material retaining cover 10 is fixed on the outer wall of the feed channel 11, and the material retaining cover 10 is connected with the first trommel 6 and the second trommel. 7 There is a gap between the outer walls to allow the first drum screen 6 and the second drum screen 7 to rotate independently. During specific implementation, a strip-shaped opening parallel to the axial direction is opened under the material blocking cover 10 , as shown in FIG. 2 . The rotation direction of the first trommel 6 and the second trommel 7 is opposite to that of the screw 3, and the inner walls of the first trommel 6 and the second trommel 7 are provided with inclined guide fins 9, and the inclination direction of the guide fins 9 is the same as that of the screw. 3. The direction of inclination of the upper blades is opposite.

Part 3 of the screw: from the bottom of the feeding funnel 1, it runs through the feed channel 11 and the first drum sieve 6, and extends to the second drum sieve 7. The end of the screw 3 near the feed channel 11 is connected to the first motor 2 .

In the specific operation process, the price is first put into the feeding funnel 1, so that the material enters the feeding channel 11, and the material is driven by the screw 3 in the feeding channel 11 and enters the first trommel 6. Since the first trommel is preset 6. The rotation direction of the second trommel 7 is opposite to that of the screw 3, so that the materials in the first trommel 6 and the second trommel 7 can be crushed by the guide fins 9 and guided by the guide fins 9. The screen 6 is transmitted to the second drum screen 7 through the cavity in the middle of the grid baffle plate 8 and the rotation of the screw. The agglomerated waste is finally guided out of the waste discharge opening 5 from the second trommel 7 . Materials meeting the particle size are gradually discharged from the meshes of the first trommel 6 and the second trommel 7 , and are discharged under the material blocking cover 10 .

When it is necessary to adjust the size of the screen or disassemble the screen, you only need to remove the bolts fixed on the fixing plate 61, see Figure 3, and replace the required screen. The detachable screen can be designed as a screen The layout of the different hole sizes makes the size of the discharge particles of the first trommel screen and the second trommel screen different, and the outlets below the two can obtain materials with different particle sizes, so that the two batches of particle size specifications can also be obtained. Different materials are supplied to different pulverizers for step-by-step pulverization, which can significantly speed up the pulverization process.

The above description of the embodiments is for those of ordinary skill in the technical field to understand and use the utility model. It is obvious that those skilled in the art can easily make various modifications to these embodiments, and apply the general principles described here to other embodiments without creative efforts. Therefore, the utility model is not limited to the above-mentioned embodiments, and the improvements and modifications made by those skilled in the art according to the disclosure of the utility model without departing from the category of the utility model should be within the protection scope of the utility model.

Claims (7)

1. A solid material centrifugal screening device, characterized in that, comprising: Feeding mechanism: including a feeding funnel (1) and a feeding channel (11), and the feeding funnel (1) communicates with the inlet of the feeding channel (11); Screening mechanism: including the first trommel (6) and the second trommel (7) connected in series in sequence, the first trommel (6) communicates with the feed channel (11), and the second trommel ( One end of 7) communicates with the first drum sieve (6), and the other end is provided with a waste discharge port (5). The rotating second motor (4), the outside of the first trommel (6) and the second trommel (7) is provided with a material retaining cover (10) with a lower opening; Screw (3): From the bottom of the feeding funnel (1), it runs through the feed channel (11) and the first drum screen (6), and extends to the second drum screen (7). The screw (3) is close to the feeder One end of the feed channel (11) is connected with a first motor (2). 2. A solid material centrifugal screening device according to claim 1, characterized in that, the middle part of the first trommel (6) and the second trommel (7) is provided with a grid baffle (8), A through hole is opened in the middle of the grid baffle plate (8), and the screw rod (3) passes through the through hole and extends to the inside of the second drum screen (7). 3. A solid material centrifugal screening device according to claim 1, characterized in that, the first trommel (6) and the second trommel (7) are provided with detachable screens. 4. A solid material centrifugal screening device according to claim 3, wherein the screen is formed by two symmetrical cylindrical plates fixed and spliced by bolts. 5. a kind of solid material centrifugal screening device according to claim 3, is characterized in that, described retaining cover (10) is fixed on the outer wall of feeding channel (11), and described retaining cover ( 10) There is a gap between the outer wall of the first drum screen (6) and the second drum screen (7), which can make the first drum screen (6) and the second drum screen (7) rotate independently. 6 . The solid material centrifugal screening device according to claim 3 , characterized in that, a strip-shaped opening parallel to the axial direction is opened under the material blocking cover ( 10 ). 6 . 7. A kind of solid material centrifugal screening device according to claim 1, characterized in that, the rotation direction of the first trommel (6) and the second trommel (7) is opposite to that of the screw rod (3), The inner walls of the first trommel (6) and the second trommel (7) are provided with inclined guide fins (9), and the inclination direction of the guide fins (9) is the same as that of the blades on the screw rod (3). in the opposite direction of inclination.