Urea particle recovery and treatment device for granulation tower

Abstract

The utility model discloses a urea particle recovery and treatment device for a granulation tower, which relates to the technical field of urea recovery and treatment and comprises the granulation tower, a granulation tower pot bottom is arranged at the bottom of the granulation tower, a dust removal mechanism is arranged on the granulation tower, a motor is arranged on the dust removal mechanism and is in transmission connection with a rotating shaft, and the rotating shaft is in transmission connection with the granulation tower. A fixing plate is arranged at the bottom of the rotating shaft, scrapers used for rotatably scraping urea particles attached to the upper surface of the bottom of the granulation tower are connected to the two ends of the fixing plate, a discharging pipe used for discharging the urea particles fixedly penetrates through the bottom of the granulation tower, and a blocking mechanism is arranged on the discharging pipe. The plugging mechanism comprises a supporting rod fixedly arranged at the bottom of the fixing plate, the bottom of the supporting rod is in movable contact with a sealing plate used for movably plugging the discharging pipe, and the bottom of the sealing plate is fixedly connected with a sliding rod. The pipeline is prevented from entering the prilling tower, the work of the prilling tower is prevented from being influenced, the discharging pipe can be opened according to requirements, and the discharging pipe is prevented from being in a normally-open state.

Description

TECHNICAL FIELD

[0001] The utility model relates to urea recovery and processing technical field, concretely to a kind of prilling tower urea granule recovery and processing device. BACKGROUND

[0002] With the development of the times and the continuous progress of industrial technology, the quality of urea products is also more and more strict, especially the problem of finished urea board and high dust content, which has become an important link affecting the sales and production application of urea products. The urea recovered to the discharge port is conveyed to the packaging vibrating screen by the belt, and after screening out urea dust, it enters the silo, and then is weighed and packed, bagged and stored at the packaging post. In this process, the dust generated needs to be recovered separately.

[0003] In the prior art, the utility model with publication number CN217568614U provides a kind of prilling tower urea granule recovery and processing device, comprising: prilling tower, bottom is provided with prilling tower pot bottom, the size of prilling tower pot bottom and the size of the inside of prilling tower are matched;Connecting column is arranged in the just above of prilling tower pot bottom;Air duct connecting disc is arranged in the just above of scraping arm, and air duct connecting disc is hollow cylindrical structure;Beneficial effect is: scraper blade adopts curved surface design, changes into sliding flow into discharge port by slope driving from the original push pressure urea granule to make it enter urea discharge port, reduces the breakage rate of urea granule caused by extrusion, and the contact point of scraper with urea is changed from the original plane driving to rapid contact with blade-shaped tip and immediately separates, by the above structure, urea granule is transferred to the end of scraper blade in the form of sliding, and under the action of inertia, it is in turn flying to discharge port, and plays a cooling role in the process of entering the discharge port of scraper.

[0004] The prilling tower urea granule recovery and processing device, the pipeline enters the prilling tower, is easy to affect the work of prilling tower, cannot open the discharge pipe according to demand, the discharge pipe is in the state of being always open, therefore we propose a kind of prilling tower urea granule recovery and processing device to solve the above problems. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of prilling tower urea granule recovery and processing device to solve the problems raised in the above background.

[0006] In order to achieve the above object, the utility model provides the following technical scheme: A granulation tower urea particle recycling and processing device, including the granulation tower, the bottom of granulation tower is equipped with granulation tower pot bottom, the central place of granulation tower pot bottom is equipped with scraper, be equipped with dust removal mechanism on the granulation tower, be connected with the scraper knife for rotating the scraper and scraping the urea particle adhered on the upper surface of granulation tower pot bottom, the lower portion of the scraper is fixedly penetrated with the blanking mechanism for the urea particle blanking pipe, the blanking mechanism is equipped with the bracket fixedly arranged in the bottom of blanking pipe, the bracket is moved and is penetrated with the slide rod, the slide rod top is fixedly connected with the sealing plate for blanking blanking pipe, the slide rod bottom is moved and is penetrated with the spring for pushing the sealing plate and moving blanking pipe.

[0007] Preferably, the dust removal mechanism is used for collecting dust in the granulation tower.

[0008] Preferably, the dust removal mechanism includes a dust collector arranged on the outer wall of the granulation tower, a pipeline for guiding flow is arranged on the dust collector, the free end of the pipeline is fixedly penetrated through the side wall of the granulation tower, and a filter screen for filtering urea particles is arranged on one end of the pipeline penetrating through the granulation tower.

[0009] Preferably, the bracket is a concave structure, the bottom of the blanking pipe is fixedly connected to the top of the bracket, the top of the sealing plate is a hemispherical structure, and the length of the slide rod is greater than the maximum length of the spring.

[0010] Preferably, the spring is a compression spring, the top of the spring is connected to the bottom of the sealing plate, and the bottom of the spring is connected to the inner bottom of the bracket.

[0011] Preferably, the dust collector is an industrial general-purpose dust collector, and multiple groups of pipelines are arranged, one end of the pipeline connected to the granulation tower is arranged above the scraper.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] 1. Start the scraper, the scraper drives the scraper knife to rotate, the scraper knife rotates to scrape the urea particles adhered to the upper surface of the granulation tower pot bottom, and at the same time, start the dust collector to adsorb the dust in the granulation tower through the pipeline. When adsorbing, the filter screen limits the urea particles from entering the pipeline, avoids the pipeline from entering the granulation tower, and avoids affecting the work of the granulation tower.

[0014] 2. The electric telescopic rod or manual pull-down slide rod can be driven, the slide rod is pulled down to pull down the sealing plate, the sealing plate is pulled down to compress the spring, and the sealing plate moves downward in the blanking pipe. When the sealing plate is separated from the blanking pipe after moving downward, the urea particles in the granulation tower are discharged outside the granulation tower through the blanking pipe, so that the blanking pipe can be opened according to the demand, and the blanking pipe is prevented from being in a constant open state. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is a structure schematic view of the utility model;

[0016] Fig. 2 It is a structure schematic view of the utility model at the plugging mechanism;

[0017] Fig. 3 It is a structure schematic view of the utility model at the dust removal mechanism.

[0018] In the drawing: 1, prilling tower; 2, prilling tower pot bottom; 3, dust removal mechanism; 31, dust collector; 32, pipeline; 33, filter screen; 4, scraper; 5, blanking pipe; 6, plugging mechanism; 61, bracket; 62, sealing plate; 63, slide rod; 64, spring; 7, scraper. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0020] Please refer to Figs. 1-3 A prilling tower urea particle recycling and processing device, including prilling tower 1, the bottom of prilling tower 1 is equipped with prilling tower pot bottom 2, the center of prilling tower pot bottom 2 is equipped with scraper 7, scraper 7 is connected with scraper 6 for rotating and scraping urea particles adhered to the surface of prilling tower pot bottom 2, prilling tower 1 is equipped with dust removal mechanism 3, dust removal mechanism 3 is used to collect dust in prilling tower 1, dust removal mechanism 3 includes dust collector 31 arranged on the outer wall of prilling tower 1, dust collector 31 is equipped with pipeline 32 for guiding flow, the free end of pipeline 32 is fixedly penetrated through the side wall of prilling tower 1, the end of pipeline 32 penetrated through prilling tower 1 is equipped with filter screen 33 for filtering urea particles, dust collector 31 is an industrial general dust collector, pipeline 32 is equipped with multiple groups, one end of pipeline 32 connected with prilling tower 1 is arranged above scraper 4, filter screen 33 is a sink funnel structure.

[0021] Start scraper 7, scraper 7 drives scraper 4 to rotate, scraper 4 rotates and scrapes urea particles adhered to the surface of prilling tower pot bottom 2, at the same time, start dust collector 31, through pipeline 32, dust in prilling tower 1 is adsorbed, when adsorbing, filter screen 33 limits urea particles from entering pipeline 32, avoids pipeline 32 from entering prilling tower 1, avoids affecting the work of prilling tower 1.

[0022] The lower discharge pipe 5 for urea particles is fixed on the bottom 2 of the prilling tower below the scraper 7, and the sealing mechanism 6 is arranged on the lower discharge pipe 5. The sealing mechanism 6 comprises a bracket 61 fixed on the bottom of the lower discharge pipe 5, a sliding rod 63 movably arranged on the bracket 61, a sealing plate 62 fixedly connected to the top of the sliding rod 63 and used for sealing the lower discharge pipe 5, and a spring 64 movably arranged on the bottom of the sliding rod 63 and used for pushing the sealing plate 62 to move and seal the lower discharge pipe 5. The bracket 61 has a concave structure, the bracket 61 is fixedly connected to the bottom of the lower discharge pipe 5, the top of the sealing plate 62 has a hemispherical structure, the length of the sliding rod 63 is greater than the maximum length of the spring 64, the spring 64 is a compression spring, the top of the spring 64 is connected to the bottom of the sealing plate 62, the bottom of the spring 64 is connected to the inner bottom of the bracket 61, and an electric telescopic rod can be arranged on the bottom of the sliding rod 63.

[0023] The electric telescopic rod or the manually pulled sliding rod 63 can be driven to move downward to pull the sealing plate 62 to move downward, and the sealing plate 62 moves downward to compress the spring 64. When the sealing plate 62 moves downward and separates from the lower discharge pipe 5, the urea particles in the prilling tower 1 are discharged outside the prilling tower 1 through the lower discharge pipe 5, so that the lower discharge pipe 5 can be opened according to the requirement, and the lower discharge pipe 5 is prevented from being in an open state.

[0024] Working principle: the scraper 7 is started, the scraper 7 drives the scraper 4 to rotate, the scraper 4 rotates to scrape the urea particles adhered to the upper surface of the prilling tower bottom 2, and the dust collector 31 is started at the same time. The dust in the prilling tower 1 is adsorbed through the pipeline 32. The filter screen 33 limits the urea particles from entering the pipeline 32 during adsorption, avoids the pipeline 32 from entering the prilling tower 1, avoids affecting the work of the prilling tower 1, the electric telescopic rod or the manually pulled sliding rod 63 can be driven to move downward to pull the sealing plate 62 to move downward, the sealing plate 62 moves downward to compress the spring 64, and the sealing plate 62 moves downward in the lower discharge pipe 5. When the sealing plate 62 moves downward and separates from the lower discharge pipe 5, the urea particles in the prilling tower 1 are discharged outside the prilling tower 1 through the lower discharge pipe 5, so that the lower discharge pipe 5 can be opened according to the requirement, and the lower discharge pipe 5 is prevented from being in an open state.

[0025] The electric telescopic rod and the dust collector 31 are prior art, and will not be described herein.

[0026] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A granulation tower urea particle recovery and processing device, comprising a granulation tower (1), the bottom of the granulation tower (1) is provided with a granulation tower kettle bottom (2), the center of the granulation tower kettle bottom (2) is provided with a scraper (7), characterized in that: The granulation tower (1) is provided with a dust removal mechanism (3), the scraper (7) is connected with a scraper (4) for rotating and scraping the urea particles adhered to the upper surface of the granulation tower pot bottom (2), a discharge pipe (5) for discharging urea particles is fixedly penetrated on the granulation tower pot bottom (2) below the scraper (7), the discharge pipe (5) is provided with a blocking mechanism (6), the blocking mechanism (6) includes a bracket (61) fixedly arranged at the bottom of the discharge pipe (5), a sliding rod (63) is movably penetrated on the bracket (61), a sealing plate (62) for blocking the discharge pipe (5) is fixedly connected to the top of the sliding rod (63), and a spring (64) for pushing the sealing plate (62) to move to block the discharge pipe (5) is movably penetrated at the bottom of the sliding rod (63).

2. The prilling tower urea granule recovery and handling apparatus of claim 1 wherein: The dust removal mechanism (3) is used for collecting dust in the granulation tower (1).

3. The prilling tower urea granule recovery and handling apparatus of claim 2 wherein: The dust removal mechanism (3) includes a dust collector (31) arranged on the outer wall of the granulation tower (1), a pipeline (32) for guiding flow is arranged on the dust collector (31), the free end of the pipeline (32) is fixedly penetrated through the side wall of the granulation tower (1), and a filter screen (33) for filtering urea particles is arranged on one end of the pipeline (32) penetrating through the granulation tower (1).

4. The prilling tower urea granule recovery and handling apparatus of claim 1 wherein: The bracket (61) is a concave structure, the bottom of the discharge pipe (5) is fixedly connected to the top of the bracket (61), the top of the sealing plate (62) is a hemispherical structure, and the length of the sliding rod (63) is greater than the maximum length of the spring (64).

5. The prilling tower urea granule recovery and handling apparatus of claim 1 wherein: The spring (64) is a compression spring, the bottom of the sealing plate (62) is connected to the top of the spring (64), and the bottom of the spring (64) is connected to the inner bottom of the bracket (61).

6. The urea particle recovery and processing device of the granulation tower according to claim 3, characterized in that: The dust collector (31) is an industrial general dust collector, a plurality of groups of the pipeline (32) are arranged, and one end of the pipeline (32) connected with the granulation tower (1) is arranged above the scraper (4).

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