CN216856628U

CN216856628U - A prilling granulator for contaminated arable land soil passivator

Info

Publication number: CN216856628U
Application number: CN202122740598.6U
Authority: CN
Inventors: 刘寿峰; 谢婷婷
Original assignee: Anhui Chunqiu Environmental Protection Technology Co ltd
Current assignee: Anhui Chunqiu Environmental Protection Technology Co ltd
Priority date: 2021-11-10
Filing date: 2021-11-10
Publication date: 2022-07-01
Anticipated expiration: 2031-11-10

Abstract

The utility model discloses a granulating device for a soil passivator for polluted cultivated land, which comprises a granulating barrel, wherein a feed inlet is arranged above one end of the granulating barrel, a spiral extrusion auger is arranged in the granulating barrel in a penetrating manner, a mould section is arranged at the front end of the granulating barrel, a mould disc is arranged on one side of the mould section, which is connected with the granulating barrel, a discharge outlet is arranged below the mould section, a cutter mechanism is arranged at the front end of the mould section, and two ends of the mould section are respectively fixedly connected with the cutter mechanism and the end part of the granulating barrel through flange plates. Be connected mould section and a granulation section of thick bamboo through the ring flange, be convenient for carry out the dismouting to the mould section, can change the mould section of different aperture sizes on the grinding apparatus dish according to the demand of granulation, the passivant granule after the cutter cutting drops in the inner space of mould section, plays the cushioning effect, and later the granule is discharged through the discharge gate again, avoids the product granule directly to drop to collection device and causes the split damage, ensures the integrality of passivant granule.

Description

A prilling granulator for contaminated arable land soil passivator

Technical Field

The utility model relates to the technical field of granulation, in particular to a granulation device for a soil passivator for a polluted farmland.

Background

In the field of remediation of heavy metal contaminated soil, when a chemical passivation remediation technology is adopted, various occurrence forms of heavy metals in the soil are changed by adding a passivating agent into the heavy metal contaminated soil, and the main purpose is to convert the heavy metals from exchangeable states and carbonate binding states with high biological effectiveness to organic binding states and residue states with low biological effectiveness, so that the reduction of the biological effectiveness is one of effective ways for treating the heavy metal contaminated soil. The passivators adopted at present mainly comprise various phosphorus-containing substances, clay minerals, biochar, oxides, organic matters and the like, and have certain difference on the repairing effects of different pollutants, soil types and pollution degrees.

Because the passivating material is mostly in powder form, the passivating agent powder is inconvenient to be directly applied to the heavy metal polluted farmland, a device capable of preparing the passivating agent powder into particles is provided, and granulation equipment is provided for researching the influence of applying passivating agents with different particle sizes on the repairing effect of the heavy metal polluted soil.

The current granulation methods mainly comprise: agglomeration granulation, extrusion granulation, melt granulation, spray granulation, and the like, wherein agglomeration granulation and extrusion granulation are the most widely used. The agglomeration granulation is to agglomerate the wet powder in motion under the action of rotation, vibration, stirring and the like; or a method of growing the dry powder particles into appropriate particles by supplying a spray liquid (binder) to the dry powder particles in a fluidized bed to obtain cohesive force. Extrusion granulation is a method of making dry powder or wet powder containing a binder into a cylindrical, spherical or sheet shape by mechanical processing such as extrusion, roller extrusion or pressing.

Because the particle sizes of the particles produced by the traditional agglomeration type granulator are different, the subsequent screening is needed to obtain the particles with the specified particle size; the granule particle size of traditional extrusion formula granulator production is single, wants to obtain the granule of different particle sizes, then need change subassembly such as mould, but the mould is ann to tear the process open complicated, wastes time and energy, is difficult to satisfy the production demand.

Disclosure of Invention

In view of the problems in the prior art, the utility model aims to provide a granulating device for a soil passivator for polluted cultivated land, and the produced product has controllable and uniform particle size.

In order to realize the purpose, the utility model adopts the technical scheme that:

the utility model provides a prilling granulator for receive contaminated arable land soil passivator, includes a granulation section of thick bamboo the one end top of a granulation section of thick bamboo is provided with the feed inlet, a granulation section of thick bamboo is inside wears to be equipped with the screw extrusion auger the mould section is installed to the front end of a granulation section of thick bamboo one side that the mould section is connected with a granulation section of thick bamboo is provided with the mould dish the below of mould section is provided with the discharge gate cutter mechanism is installed to the front end of mould section, the tip fixed connection of ring flange and cutter mechanism, a granulation section of thick bamboo is passed through respectively at the both ends of mould section.

Furthermore, the cutter mechanism comprises a driving motor, a screw rod, a cutter and a shell, wherein the front end of the screw rod is coaxially arranged at the end part of an output shaft of the driving motor, and the cutter is arranged at the rear end of the screw rod.

Furthermore, the rear end of the screw rod extends into the interior of the mould section, so that the cutter is close to and attached to the front side of the mould disc.

Further, the spiral extrusion auger comprises a rotating shaft and a spiral sheet, one end of the rotating shaft penetrates through the granulation cylinder and is connected with the output end of the feeding motor, and the other end of the rotating shaft is fixedly connected with the bearing seat.

Furthermore, the bearing seat is arranged at one end of the granulation cylinder close to the die disc through a support frame.

Furthermore, a buffering connecting seat is arranged at the center of one side of the die disc, which is positioned in the granulation cylinder, and the buffering connecting seat is tightly contacted and connected with the bearing seat.

Furthermore, a plurality of extrusion holes are uniformly distributed on the die plate and distributed around the buffer connecting seat.

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

1. the soil passivator granulating device is provided with the die section which is connected with the granulating barrel through the flange plate, so that the die section can be conveniently disassembled and assembled, the die sections with different pore sizes on the die plate can be replaced according to the granulating requirement, the die section has a simple structure and is convenient to replace and clean, passivator particles cut by the cutter fall into the inner space of the die section to play a role in buffering, and then the particles are discharged through the discharge port, so that the situation that the product particles directly fall to the collecting device to cause splitting and damage is avoided, and the integrity of the passivator particles is ensured.

2. Through setting up the buffering connecting seat and the bearing frame contact connection in mould dish one side in this application, reach the cushioning effect who produces vibrations to the inside screw extrusion auger work of granulation section of thick bamboo through the buffering connecting seat, improve the stability of screw extrusion auger work.

Drawings

FIG. 1 is a schematic exploded view of a granulating apparatus according to the present invention;

FIG. 2 is a schematic perspective view of a granulating apparatus according to the present invention;

fig. 3 is a cross-sectional view a-a of the pelletizing apparatus of fig. 2.

Fig. 4 is a schematic view of the structure of a mold segment.

In the figure: the device comprises a granulation cylinder 1, a feeding port 2, a spiral extrusion auger 3, a die section 4, a die disc 5, a discharging port 6, a cutter mechanism 7, a flange plate 8, a driving motor 9, a screw rod 10, a cutter 11, a shell 12, a bearing seat 13, a feeding motor 14, a support frame 15, a buffer connecting seat 16, a rotating shaft 301, a spiral sheet 302 and an extrusion hole 501.

Detailed Description

The following detailed description of embodiments of the utility model refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.

As shown in fig. 1-4, a granulation device for soil passivator for contaminated cultivated land comprises a granulation cylinder 1, wherein a feed inlet 2 is arranged above one end of the granulation cylinder 1, a spiral extrusion auger 3 is arranged in the granulation cylinder 1 in a penetrating manner, a mold section 4 is arranged at the front end of the granulation cylinder 1, a mold disc 5 is arranged on one side of the mold section 4 connected with the granulation cylinder 1, a discharge outlet 6 is arranged below the mold section 4, a cutter mechanism 7 is arranged at the front end of the mold section 4, and two ends of the mold section 4 are respectively fixedly connected with the cutter mechanism 7 and the end of the granulation cylinder 1 through flange plates 8.

The soil passivator granulating device is provided with the die section 4 which is connected with the granulating barrel 1 through the flange 8, so that the die section 4 can be conveniently disassembled and assembled, the die sections 4 with different pore sizes on the die disc 5 can be replaced according to the granulating requirement, the die section has a simple structure and is convenient to replace and clean, passivator particles cut by a cutter fall into the inner space of the die section 4 to play a role in buffering, and then the particles are discharged through a discharge port, so that the situation that the product particles directly fall to a collecting device to cause splitting damage is avoided, and the integrity of the passivator particles is ensured.

As shown in fig. 1, in one embodiment of the present invention:

the cutter mechanism 7 comprises a driving motor 9, a screw rod 10, a cutter 11 and a shell 12, wherein the front end of the screw rod 10 is coaxially arranged at the end part of an output shaft of the driving motor 9, and the cutter 11 is arranged at the rear end of the screw rod 10.

The rear end of the screw 10 extends into the interior of the mould segment 4, so that the cutter 11 is close to and attached to the front side of the mould disc 5.

The passivator material is extruded into a die disc 5 at the end of a die section 4 by a spiral extrusion auger 3, the material is extruded out through the die disc 5, a screw rod 10 is controlled to rotate by a driving motor 9, and then a cutter 11 is driven to rotate to cut the material extruded out of the die disc 5, so that the granular material of the passivator is obtained.

As shown in fig. 1, in one embodiment of the present invention:

the screw extrusion auger 3 comprises a rotating shaft 301 and a spiral piece 302, one end part of the rotating shaft 301 penetrates through the granulation cylinder 1 and is connected with the output end of the feeding motor 14, and the other end of the rotating shaft is fixedly connected with the bearing block 13.

As shown in fig. 3, the bearing block 13 is mounted on one end of the granulation cylinder 1 near the die disc 5 by a support frame 15.

The bearing block 13 is fixed through the support frame 15, and the rotating shaft 301 is installed through the bearing block 13, so that the working stability of the spiral extrusion packing auger 3 is improved.

As shown in fig. 4, in one embodiment of the utility model:

the die disc 5 is provided with a buffer connecting seat 16 at the center of one side in the granulation cylinder 1, and the buffer connecting seat 16 is in close contact connection with the bearing seat 13.

In this embodiment, through setting up the buffering connecting seat 16 and the contact of bearing frame 13 in mould dish 5 one side and being connected, reach the cushioning effect who produces vibrations to the inside screw extrusion auger 3 work of granulation section of thick bamboo 1 through buffering connecting seat 16, improve the stability of screw extrusion auger work.

As shown in fig. 4, in one embodiment of the utility model:

a plurality of extrusion holes 501 are uniformly distributed on the die disc 5, and the extrusion holes 501 are distributed around the buffer connecting seat 16.

The passivator material is extruded into the die disc 5 by the spiral extrusion auger 3, the material is extruded through the extrusion hole 501, and the material extruded through the extrusion hole 501 is cut by the rotation of the cutter 11, so that granular passivator material is obtained.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the utility model, but that various changes and modifications may be made without departing from the spirit and scope of the utility model, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a prilling granulator for receive contaminated arable land soil passivator, includes granulation section of thick bamboo (1) the one end top of granulation section of thick bamboo (1) is provided with feed inlet (2), inside screw extrusion auger (3) of wearing to be equipped with of granulation section of thick bamboo (1), its characterized in that mould section (4) are installed to the front end of granulation section of thick bamboo (1) one side that mould section (4) and granulation section of thick bamboo (1) are connected is provided with mould dish (5) the below of mould section (4) is provided with discharge gate (6) cutter mechanism (7) are installed to the front end of mould section (4), the tip fixed connection of ring flange (8) and cutter mechanism (7), granulation section of thick bamboo (1) is passed through respectively at the both ends of mould section (4).

2. The granulation device for the soil passivator used in the polluted cultivated land according to claim 1, wherein the cutter mechanism (7) comprises a driving motor (9), a screw (10), a cutter (11) and a shell (12), the front end of the screw (10) is coaxially installed at the end part of the output shaft of the driving motor (9), and the cutter (11) is installed at the rear end of the screw (10).

3. A prilling device for soil passivator for contaminated cultivated lands according to claim 2, characterized in that the rear end of the screw (10) extends inside the mould section (4) so that the cutter (11) is close to and fits on the front side of the mould disc (5).

4. The granulation apparatus for soil passivator for contaminated cultivated land according to claim 1, wherein the screw extrusion auger (3) comprises a rotating shaft (301) and a screw blade (302), one end of the rotating shaft (301) passes through the granulation cylinder (1) and is connected with the output end of the feeding motor (14), and the other end of the rotating shaft is fixedly connected with the bearing block (13).

5. A prilling device for a soil passivator for contaminated cultivated land according to claim 4, characterized in that the bearing block (13) is mounted on the end of the prilling barrel (1) close to the mould disc (5) by means of a support frame (15).

6. A granulating device for a soil passivator for contaminated cultivated land according to claim 5, wherein a buffer connecting seat (16) is arranged at the center of one side of the mould disc (5) in the granulating barrel (1), and the buffer connecting seat (16) is closely contacted and connected with a bearing seat (13).

7. A prilling device for a soil passivator for contaminated cultivated land according to claim 6, characterized in that a number of extrusion holes (501) are evenly distributed on the die disc (5), said extrusion holes (501) being distributed around the buffer connection seat (16).