A tower bottom scraper for a high-tower granulation device

Abstract

The invention provides a scraper at the bottom of a high tower granulation device. The power end and the rotating end of the scraper are relatively fixed. The scraper arm of the scraper is composed of a steel wire rope connected to a scraper. It can be installed at the center of the discharge port of the cone bucket, or it can be installed on the rotating end, driven by the motor reducer, the material on the upper surface of the high tower granulation cone bucket or the bottom of the flat tower is scraped to the center discharge port of the cone bucket; The device of the present invention is easy to install, and the device installed with the cantilever type scraper, V-shaped hopper and disc scraper can be transformed into a fixed arm flexible arm scraper device; because the scraper arm of the device is flexible, It makes it difficult for the scraper arm to stick to the material, makes it difficult for the upper surface of the cone bucket to accumulate material and water, and improves the quality of the produced product; High consumption, labor-intensive cleaning of the bottom of the tower and technical problems affecting yield.

Description

technical field [0001] The invention relates to a urea high-tower granulation device and an under-tower receiving device of a compound fertilizer high-tower granulation device. More specifically, the invention relates to a tower bottom scraper of a high-tower granulation device. Background technique [0002] In the current high-tower melt granulation device, there are cantilever scraper, V-shaped hopper, W-shaped hopper and disc scraper at the bottom of the granulation tower. The actual operation of the high tower melt granulation device is analyzed as follows. [0003] Cantilever scraper [0004] The cantilever scraper is installed on the conical concrete bucket with 15°~18° at the bottom of the prilling tower, and the transmission device is installed on the pre-embedded bolts of the civil engineering under the cone bottom of the cone bucket, and the transmission device drives the concrete bucket above the cone bucket. The cantilever rotates, and several angled scrapers d...

AI Technical Summary

Problems solved by technology

[0011] Disclosed as Chinese patent CN103394306A is a kind of compound fertilizer granulation high tower bottom collection disc internal scraper, this invention is to install a kind of rotating flat collection disc with central feeding hole at the bottom of the high tower tower. 2-3 sets of rotating screw conveyors are installed on the receiving disk, the transmission end of the screw conveyor is fixedly installed on the tower wall, and the other end of the screw conveyor is fixedly installed on the center hole of the disk, and the screw conveyor is not collected When the material disc rotates, when the material on the receiving disc rotates to the screw conveyor, the material on the disc passing through the screw conveyor is scraped to the center of the disc by the rotation of the screw conveyor to complete the collection at the bottom of the tower. process; the disadvantage of this invention is that the receiving material is a flat disc, which causes a large load on the screw conveyor and a lot of broken particles; Large; more foundations and more tugboats need to be installed at the bottom of the tower to support the larger rotating disc, the mechanism is complicated, the space at the bottom of the tower is occupied, and the maintenance and cleaning of the bottom of the tower are inconvenient

In this device, only the central fulcrum of the cone bucket is fixed, and there is no fulcrum at other places, and the strength of the cantilever cannot be made too large; therefore, after the device has been in operation for a period of time, the cantilever will be upturned, making the distance between the cantilever and the upper surface of the cone bucket The distance between them is getting bigger and bigger, and the material layer on the cone bucket is getting thicker and thicker, which will cause the material layer to absorb moisture, cause environmental pollution and fertilizer loss; the rotating arm of the rotary arm scraper will stick to the material, and the more The more sticky, the need to stop for treatment after a short period of time; the device is expensive and consumes a lot of power

[0013] While strengthening one-sided functions, the above methods of receiving materials have led to the weakening of other functions, and there are generally problems of high investment and high power consumption.

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