CN214863361U

CN214863361U - Dry granulation system

Info

Publication number: CN214863361U
Application number: CN202121154072.3U
Authority: CN
Inventors: 金延超; 刘汝刚; 崔建波; 李红娟; 丁磊
Original assignee: Doright Co ltd
Current assignee: Doright Co ltd
Priority date: 2021-05-27
Filing date: 2021-05-27
Publication date: 2021-11-26
Anticipated expiration: 2031-05-27

Abstract

The utility model discloses a dry granulation system especially relates to carbon black dry granulation, including granulator, lifting machine, sieve separator, grain feed bin, bag filter, powder storehouse, the granulator is by the granulation cylinder, the feed end, the discharge end, screw conveyer constitutes, the screw conveyer of granulator inserts in the granulation cylinder from the feed end, nevertheless does not run through the granulation cylinder, only is used for the powder to get into, and equipment has got rid of the unable enlarged restriction of screw conveyer overlength, and granulation cylinder diameter and length all can increase, and beneficial effect is for increasing the productivity, and accurate control aggregate backward flow improves granulation efficiency and improves finished product quality.

Description

Dry granulation system

Technical Field

The utility model relates to a dry granulation system especially relates to carbon black dry granulation, including granulator, lifting machine, sieve separator, grain feed bin, bag filter, powder storehouse, the granulator comprises granulation cylinder, feed end, discharge end, screw conveyer.

Background

Powdered carbon black is not easy to store, transport and use due to its characteristics of small bulk density, easy flying and poor flowability. Therefore, it is necessary to produce a granulated carbon black from a powdery carbon black, to improve the bulk density by approximately 10 times, to solve the problem of flying and to significantly improve the flowability. The granular carbon black prepared from the powdery carbon black has the advantages of dry method and wet method, and the dry granulation has the advantages of low energy consumption and high product quality. Dry granulation is to complete granulation without adding auxiliary granulating agent, and the granulation process needs to add granules from the front end as granulation master batch. The prior known dry granulation equipment adopts a screw conveyor penetrating through a granulation roller for powder feeding and granule refluxing, and has the problems of poor granulation efficiency, incapability of enlarging equipment scale and low granulation productivity caused by difficult and inaccurate granule refluxing quantity adjustment.

Disclosure of Invention

The to-be-solved technical problem of the utility model lies in providing a dry granulation system, its beneficial effect improves granulation efficiency and improves finished product quality for increase productivity, accurate control aggregate backward flow volume.

In order to solve the problem, the utility model discloses a dry granulation system includes granulator, lifting machine, sieve separator, grain feed bin, bag filter, powder storehouse, and the granulator comprises granulation cylinder, feed end, discharge end, screw conveyer. The screw conveyer of granulator inserts in the granulation cylinder from the feed end, but does not run through the granulation cylinder, only is used for the powder to get into, and equipment has got rid of the unable enlarged restriction of screw conveyer overlength, and granulation cylinder diameter and length all can increase, therefore granulator productivity can increase. After being discharged from the granulator, the granules pass through the elevator and the screening machine, the qualified granules enter the granule bin, the unqualified granules return to the powder bin, the qualified granules return to the granulator, the granules are conveyed by an external pipeline of equipment in a backflow mode, the flow rate of the granules can be accurately controlled, and therefore the granule backflow amount can be accurately controlled by a granulation system. The granulation system is provided with a dust collection system, powder is sucked away and collected by a bag filter and then returns to the powder bin, and the combination of dust collection and screening can improve the quality of finished products.

Drawings

The following detailed description of embodiments of the invention is provided with reference to the accompanying drawings, in which:

fig. 1 is a schematic view of the present invention.

Detailed Description

Fig. 1 shows a schematic diagram of the present invention. The utility model discloses dry granulation system, including granulator, lifting machine, sieve separator, grain feed bin, bag filter, powder storehouse, the granulator comprises granulation cylinder, feed end, discharge end, screw conveyer, and concrete implementation mode is as follows:

carbon black powder enters a powder bin 9 from an upstream process, materials in the powder bin 9 enter a spiral conveyor 4, the materials are pushed to the inside of a granulation roller 1 by the spiral conveyor 4, the materials enter a lifting machine 5 from a discharge port on a discharge end 3 after passing through the granulation roller 1, the materials enter a screening machine 6 after being lifted, the materials which are not qualified after being screened return to the powder bin 9, qualified aggregates enter a granule bin 7, one part of the materials in the granule bin 7 enter the granulation roller 1 from a feed port on a feed end 2, the other part of the materials enter a downstream process as finished products, dust suction ports are formed in the upper parts of the lifting machine 5 and the screening machine 6 and are connected with a bag filter 8, a fan is connected to the outer part of the dust suction port of the bag filter 8 to suck and collect the powder in the lifting machine 5 and the screening machine 6, and the collected powder enters the powder bin 9.

Granulation cylinder 1 is the cylindrical hollow section of thick bamboo of horizontal arrangement, can rotate around the axis under the external drive, the front end is connected and forms mechanical seal with feed end 2, the rear end is connected and forms sealedly with discharge end 3, be equipped with the feed inlet on the feed end 2, be equipped with the discharge gate on the discharge end 3, screw conveyer 4 passes feed end 2 and is connected with it and forms static seal, one end is located granulation cylinder 1 outside and is equipped with the feed inlet, the other end is located granulation cylinder 1 inside and is equipped with the discharge gate, feed end 2, discharge end 3 and screw conveyer 4 all are fixed in on the basis.

Claims

1. The utility model provides a dry granulation system, includes granulator, lifting machine, sieve separator, grain feed bin, bag filter, powder storehouse, its characterized in that: the carbon black powder enters the powder bin from an upstream process, the materials in the powder bin enter the screw conveyor, are pushed to the interior of the granulation roller by the screw conveyor, enter the lifting machine from the discharge port on the discharge end after passing through the granulation roller, enter the screening machine after being lifted, the unqualified materials return to the powder bin after being screened, the qualified granules enter the granule bin, one part of the materials in the granule bin enter the granulation roller from the feed port on the feed end, and the other part of the materials as a finished product enters a downstream process.

2. A dry granulation system as claimed in claim 1, characterized in that: the granulator is by the granulation cylinder, the feed end, the discharge end, screw conveyer constitutes, the cylindrical hollow section of thick bamboo that the granulation cylinder was horizontal to be arranged, can rotate around the axis under the external drive, the front end is connected with the feed end and forms mechanical seal, the rear end is connected with the discharge end and forms sealedly, be equipped with the feed inlet on the feed end, be equipped with the discharge gate on the discharge end, screw conveyer passes the feed end and is connected with it and forms static seal, one end is located the granulation cylinder outside and is equipped with the feed inlet, the other end is located inside and be equipped with the discharge gate of granulation cylinder, the feed end, discharge end and screw conveyer all are fixed in on the basis.

3. A dry granulation system as claimed in claim 1, characterized in that: dust absorption openings are formed in the upper portions of the elevator and the screening machine and connected with the bag filter, the outer portion of each dust absorption opening of the bag filter is connected with a fan to absorb and collect powder in the elevator and the screening machine, and the collected powder enters the powder bin.