CN202828846U

CN202828846U - Anti-scaling V-shaped blanking chute

Info

Publication number: CN202828846U
Application number: CN201220520262.7U
Authority: CN
Inventors: 陈海平
Original assignee: Anhui Liuguo Chemical Industry Co Ltd
Current assignee: Anhui Liuguo Chemical Industry Co Ltd
Priority date: 2012-10-11
Filing date: 2012-10-11
Publication date: 2013-03-27
Anticipated expiration: 2022-10-11

Abstract

The utility model relates to an anti-scaling V-shaped blanking chute which is used for blanking opening of a spraying granulation kiln in a phosphatic fertilizer production. Four side walls of a chute body are respectively provided with a plurality of air inlet ports which are arranged in parallel. The chute wall above each air inlet port extends to the inner side of the chute in an inclining mode and a grid is formed. The grid on each side wall is arranged in parallel. The upper surface of each grid forms an inclining material guide face, and the lower surface of each grid forms an airflow guide surface. An airtight air chamber is arranged around the outer sides of the four side walls. An air intake hole which is communicated with air resource is formed in the air chamber. Hot-blast air is used for blowing and sweeping the inner wall of the chute so that wet granules are prevented from sticking and stagnating on the inner wall of the chute. The scaling is effectively avoided, production efficiency of system is improved and production cost and labour intensity are lowered.

Description

Good antiscale property V-arrangement feeding chute

Technical field

The utility model relates to a kind of V-arrangement feeding chute for production of phosphate fertilizer slurry-spraying pelletizing kiln feed opening, specifically a kind of good antiscale property V-arrangement feeding chute.

Background technology

In the granulation process of diammomium phosphate, granulation kiln tail feed opening generally adopts the blanking of V-arrangement feeding chute.Because the particle water ratio that the granulation kiln is discharged is higher, water ratio generally reaches 4%, be easy to produce fouling, moist particle can be bonded at formation fouling on the chute inwall and affect blanking when passing through chute, even stopped up fully, basically each class must not all will stop to stop in 20～30 minutes and clear up chute, has not only affected the Systems balanth operation but also increased work capacity to producers.

Summary of the invention

The purpose of this utility model provides a kind of good antiscale property V-arrangement feeding chute for slurry-spraying pelletizing kiln feed opening, can effectively alleviate the fouling of chute, improves system's production efficiency.

The technical solution adopted in the utility model is: comprise the chute body, be respectively equipped with some admission ports that be arranged in parallel on four sidewalls of chute body, the chute walls of each admission port top extends to form grid, the admission port of grid lower edge below the projection on the vertical guide covers at least to the inboard inclination of chute; Grid on each sidewall be arranged in parallel, and the grid upper surface forms the material diversion face of inclination, and the grid lower surface forms the air flow guiding face, and the air-flow that admission port is flowed into is directed at lower square grid upper surface; The outside around four sidewalls of chute body is provided with airtight air chamber, has the admission port that communicates with source of the gas on the air chamber.

During work, temperature is passed into air chamber at 50 ℃～70 ℃ hot blast, and the grid on chute side wall enters in the chute again, and a upper grid lower surface is with air-flow next grid upper surface that leads, the particle that is bonded in the grid upper surface is purged, can prevent effectively that the phosphate fertilizer particle is at its surface scale; And hot blast contacts with particle also can be further dry to particle, improves mass particle.

Excessive by the chute side wall admission port for preventing particle, each grid lower edge to the vertical distance of below admission port is no more than 10cm.

Consider that four sidewalls of chute all arrange the admission port of purging, adopt a sealed gas chamber can cause the stream pressure of different lateral admission port uneven, cause that different lateral is purged effect different, a preferred version of the present utility model is: the outside of four sidewalls is respectively equipped with airtight independent air chamber, has the admission port that communicates with source of the gas on each independent air chamber.

As shown from the above technical solution, the utility model adopts hot blast to the chute inner wall blowing, can prevent moist particle viscous at the chute inwall, can effectively avoid scale deposition and the chute blocking that causes.After adopting the technical program, the parking clearance time extended to about 10 days, and system's production efficiency significantly improves, and can reduce production costs, and also can reduce labour intensity simultaneously.Select hot blast can also prevent particle owing to temperature is crossed low the caking, and can be further dry to particle, mass particle improved.

Description of drawings

Fig. 1 is the utility model structural representation;

Fig. 2 is the birds-eye view of Fig. 1;

Fig. 3 is the local enlarged diagram in A place among Fig. 1.

The specific embodiment

As shown in Figure 1 to Figure 3, be respectively equipped with some admission ports that be arranged in parallel 4 on four sidewalls 1 of chute body, the chute walls of each admission port 4 top extends to form grid 5, the admission port 4 of grid 5 lower edges below the projection on the vertical guide covers at least to the inboard inclination of chute; Grid 5 on each sidewall 1 be arranged in parallel, and grid upper surface 51 forms the material diversion face of inclination, and grid lower surface 52 forms the air flow guiding face, and the air-flow that admission port 4 is flowed into is directed at below grid surface 52.The outside around four sidewalls 1 of chute body is provided with airtight air chamber 2, has the admission port 3 that communicates with source of the gas on the air chamber 2.

Each grid 5 lower edge to the vertical distance of below admission port 4 is no more than 10cm.

Preferred version as shown in Figure 2, the outside of four sidewalls 1 is respectively equipped with airtight

independent air chamber

21,22,23 and 24, has the admission port that communicates with source of the gas on each independent air chamber.

Its principle of work is as follows: during work, fall in the chute through chute top inlet point 11 from the particle of granulation kiln, through grid upper surface 51 water conservancy diversion, discharged by lower end discharging opening 12.Simultaneously, temperature is passed into respectively

air chamber

21,22,23 and 24 at 50 ℃～70 ℃ hot blast, grid on chute side wall 15 enters in the chute again, a upper grid lower surface 52 is with air-flow next grid upper surface 51 that leads, the particle that is bonded in grid upper surface 51 is purged, to prevent that the phosphate fertilizer particle is in its surface bonding; Hot blast is discharged by discharging opening 12 with particle, and is further dry to particle when hot blast contacts with particle, can improve mass particle.

Claims

1. good antiscale property V-arrangement feeding chute, comprise the chute body, it is characterized in that: be respectively equipped with some admission ports that be arranged in parallel (4) on four sidewalls of chute body (1), the chute walls of each admission port (4) top extends to form grid (5), the admission port (4) of grid (5) lower edge below the projection on the vertical guide covers at least to the inboard inclination of chute; Grid (5) on each sidewall (1) be arranged in parallel, grid upper surface (51) forms the material diversion face of inclination, grid lower surface (52) forms the air flow guiding face, and the air-flow that admission port (4) is flowed into is directed at lower square grid upper surface (51); The outside around four sidewalls of chute body (1) is provided with airtight air chamber (2), has the admission port (3) that communicates with source of the gas on the air chamber (2).

2. good antiscale property V-arrangement feeding chute according to claim 1, it is characterized in that: each grid (5) lower edge to the vertical distance of below admission port (4) is no more than 10cm.

3. good antiscale property V-arrangement feeding chute according to claim 1 and 2, it is characterized in that: the outside of four sidewalls (1) is respectively equipped with airtight independent air chamber (21,22,23,24), has the admission port that communicates with source of the gas on each independent air chamber.