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CN-224230528-U - Drying device for steel slag raw materials in metallurgical sintering synergistic agent

CN224230528UCN 224230528 UCN224230528 UCN 224230528UCN-224230528-U

Abstract

The utility model discloses a drying device for steel slag raw materials in a metallurgical sintering synergistic agent, which comprises a shell, a feed hopper positioned at the upper end of the shell, a discharge pipe positioned at the lower end of the shell, an airflow circulation part, a heater, a first fan and a second fan. The utility model has the advantages that through the arrangement of the airflow circulating part, the airflow circulating part is arranged in the steel slag raw material, the airflow flowing can be convenient, the drying efficiency of the steel slag raw material can be accelerated, the energy is saved, the transverse pipe is not provided with a through hole, the air flow of the vent pipe which is arranged vertically can be conveniently collected, the length of the vent pipe along the horizontal direction of the second fan to the first fan is sequentially shortened, a certain space which is convenient for the hot air to disperse can be formed in the shell close to the heater, the hot air is prevented from being pumped away by the transverse pipe after entering, and the ventilation hole effectively improves the flow of the hot air.

Inventors

  • Dai Ruigen
  • DAI XIANG

Assignees

  • 云南科兴环保科技有限公司

Dates

Publication Date
20260512
Application Date
20250612

Claims (6)

  1. 1. The drying device for the steel slag raw materials in the metallurgical sintering synergistic agent comprises a shell (1), a feed hopper (2) positioned at the upper end of the shell (1) and a discharge pipe (3) positioned at the lower end of the shell (1), and is characterized by further comprising an airflow circulating part (4), a heater (5), a first fan (6) and a second fan (7), wherein the heater (5) is communicated with the lower end of the shell (1) through a pipeline, one end of the heater (5) far away from the shell (1) is connected with the first fan (6) through a pipeline, the airflow circulating part (4) is arranged in the shell (1), the upper end of the airflow circulating part extends out of the shell (1) at the upper end of the opposite side of the position where the heater (5) is arranged and is communicated with the second fan (7), the airflow circulating part (4) comprises a transverse pipe (41) arranged at the upper part of the shell (1) and a plurality of ventilation pipes (42) communicated with the transverse pipe (41), the ventilation pipes (42) are sequentially shortened along the horizontal direction of the second fan (7) to the first fan (6), and each ventilation pipe (421) is provided with a plurality of ventilation holes (421).
  2. 2. The drying device for steel slag raw materials in metallurgical sintering synergistic agent according to claim 1, wherein the lower ends of a plurality of ventilation pipes (42) are positioned on the same inclined line, and the inclined line and the horizontal plane are 30-40 degrees.
  3. 3. The drying apparatus for steel slag raw materials in metallurgical sintering synergistic agent as set forth in claim 2, wherein the oblique line is 35 degrees from the horizontal.
  4. 4. The drying device for the steel slag raw materials in the metallurgical sintering synergistic agent is characterized in that a baffle plate (21) is horizontally arranged on the feed hopper (2), and a first valve (31) is arranged on the discharge pipe (3).
  5. 5. The drying device for steel slag raw materials in metallurgical sintering synergistic agent according to claim 4, wherein a second valve (51) is arranged on a pipeline between the heater (5) and the shell (1), a third valve (71) is arranged on a transverse pipe (41) between the shell (1) and the second fan (7), a third fan (8) is connected on the pipeline between the third valve (71) and the shell through a branch pipe, and a fourth valve (81) is arranged between the third fan (8) and the transverse pipe (41).
  6. 6. The drying device for steel slag raw materials in metallurgical sintering synergistic agent according to claim 4, wherein the middle part of the plurality of ventilation pipes (42) is fixedly connected with a plurality of fixing rods (43), and the fixing rods (43) are fixedly connected with the inner wall of the shell (1).

Description

Drying device for steel slag raw materials in metallurgical sintering synergistic agent Technical Field The utility model relates to the technical drying field, in particular to a drying device for steel slag raw materials in a metallurgical sintering synergistic agent. Background The metallurgical sintering synergist is a composite functional additive which improves the air permeability and the ore phase structure of a material layer by optimizing the sintering reaction process, thereby improving the strength of the sintered ore and reducing the solid burnup. The metallurgical sintering synergist adopts steel slag as a raw material, and the steel slag is subjected to drying treatment before being prepared into the metallurgical sintering synergist, wherein the main reason is that the porous structure (containing capillary pores and cracks) of the steel slag can adsorb water in rainwater or air when the steel slag is stored in an open storage yard for a long time, the water content is usually 5% -15%, and the stability of the subsequent process and the performance of the synergist can be affected. However, when the existing steel slag raw material drying device is used for drying, because the steel slag raw materials are in a stacked shape and have smaller gaps, hot air is usually introduced into the drying cavity by adopting a pipeline, so that the hot air cannot well uniformly dry the stacked steel slag raw materials in the drying cavity, and the steel slag raw materials far away from the air inlet pipe position of the air heater need a long time to be sufficiently dried, thereby being unfavorable for saving energy. Disclosure of utility model The utility model aims to solve the technical problem of providing a drying device for steel slag raw materials in a metallurgical sintering synergistic agent. In order to solve the technical problems, the technical scheme of the utility model is as follows: The drying device for the steel slag raw materials in the metallurgical sintering synergistic agent comprises a shell, a feed hopper positioned at the upper end of the shell, a discharge pipe positioned at the lower end of the shell, an airflow circulating part, a heater, a first fan and a second fan, wherein the heater is communicated with the lower end of the shell through a pipeline, one end of the heater far away from the shell is connected with the first fan through a pipeline, the airflow circulating part is arranged in the shell, the upper end of the airflow circulating part extends out of the shell at the upper end of the opposite side of the position where the heater is arranged and is communicated with the second fan, the airflow circulating part comprises a transverse pipe arranged at the upper part of the shell and a plurality of ventilation pipes communicated with the transverse pipe, the length of each ventilation pipe in the horizontal direction of the first fan is sequentially shortened along the second fan, and a plurality of ventilation holes are formed in each ventilation pipe. Further, the lower ends of the plurality of ventilation pipes are positioned on the same inclined line, and the inclined line and the horizontal plane form 30-40 degrees. Further, the oblique line forms 35 degrees with the horizontal plane. Further, a material blocking plate is horizontally arranged on the feed hopper, and a first valve is arranged on the material discharging pipe. Further, a second valve is arranged on a pipeline between the heater and the shell, a third valve is arranged on a transverse pipe between the shell and the second fan, a third fan is connected to the pipeline between the third valve and the shell through a branch pipe, and a fourth valve is arranged between the third fan and the transverse pipe. Further, the middle parts of the plurality of ventilation pipes are fixedly connected with a plurality of fixing rods, and the fixing rods are fixedly connected with the inner wall of the shell. The utility model has the beneficial effects that: Through the arrangement of the airflow circulating part, the airflow circulating part is arranged in the steel slag raw material, so that the airflow can flow conveniently, the drying efficiency of the steel slag raw material is accelerated, the energy is saved, the transverse pipe is not provided with through holes, the vertically arranged ventilation pipe can collect the airflow, the length of the ventilation pipe along the horizontal direction of the second fan to the first fan is sequentially shortened, a certain space can be formed in the shell close to the heater, the hot air can be conveniently dispersed, the hot air is prevented from being pumped away by the transverse pipe after entering, and the ventilation holes effectively improve the flow of the hot air. Drawings FIG. 1 is a schematic diagram of the structure of the present utility model; Fig. 2 is an enlarged view at a in fig. 1. In the drawing the view of the figure, 1-A shell, 2-a feed hopper,