Sintered ore tail gas treatment equipment

Abstract

The utility model discloses sinter tail gas treatment equipment which comprises a water tank, a smoke inlet section, a filling section, an acceleration section and a heat exchange section which are sequentially arranged from bottom to top, circulating water heat absorption pipes are arranged in the water pool and the heat exchange section, the water pool is further connected with a water outlet pipe, a plurality of smoke inlet pipes are arranged in the smoke inlet section, a plurality of vertical packing pieces are evenly distributed in the packing section, and a plurality of spraying water pipes are arranged above the vertical packing pieces. The acceleration section comprises two dumbbell-shaped air ducts which are symmetrically arranged, the throat parts of the air ducts are provided with vertically upward pressure gas spray pipes, the upper sides of the air ducts are connected with horizontal reversing air ducts, the outlets of the horizontal reversing air ducts are provided with a plurality of vertical turbulent flow rods, and the outlets of the two horizontal reversing air ducts are opposite and are jointly connected with the heat exchange section; the upper side of the heat exchange section is opened; the temperature and the dust content of sintering flue gas are reduced through a water bath method, heat contained in the sintering flue gas can be used for heating circulating water, the circulating water can be used for boiler supplementary water, and the purposes of energy conservation and environment protection are achieved.

Description

Technical Field

[0001] The utility model relates to the field of sintering fume treatment equipment, in particular to sintering ore tail gas treatment equipment. Background Art

[0002] The sintering flue gas of sintered ore has the characteristics of high temperature and high dust content. If it is directly passed into the dust removal equipment, it will accelerate the damage of the dust removal equipment. Therefore, it is necessary to set up a pre-treatment equipment upstream of the dust removal equipment. In addition, the sintering flue gas also contains high-grade thermal energy. If it is not effectively recovered, it will cause energy waste. Therefore, a sintering ore tail gas treatment equipment suitable for the upstream of the dust removal equipment is proposed. Utility Model Content

[0003] In view of the problems existing in the background technology, the purpose of the utility model is to provide a sintered ore tail gas treatment device, which effectively solves the problems existing in the background technology.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] The sintered ore tail gas treatment equipment comprises a water pool, a smoke inlet section, a filling section, an acceleration section and a heat exchange section which are arranged in sequence from bottom to top; the water pool and the heat exchange section are both provided with circulating water heat absorption pipes, the water pool is also connected to a water outlet pipe, the smoke inlet section is provided with a plurality of smoke inlet pipes, the filling section is evenly distributed with a plurality of vertical filling sheets, and a plurality of spray water pipes are arranged above the vertical filling sheets; the acceleration section comprises two symmetrically arranged dumbbell-shaped air ducts, the throat of the air duct is provided with a vertically upward pressure gas nozzle, the upper side of the air duct is connected to a horizontal reversing air duct, a plurality of vertical spoiler bars are arranged at the outlet of the horizontal reversing air duct, the outlets of the two horizontal reversing air ducts are opposite to and commonly connected to the heat exchange section, and the upper side of the heat exchange section is open.

[0006] Furthermore, the portion of the circulating water heat absorption pipe located in the water pool is a bare pipe section, and the portion of the circulating water heat absorption pipe located in the heat exchange section is a serpentine coil section.

[0007] Furthermore, the outlet of the smoke inlet pipe is downward.

[0008] Furthermore, the horizontal reversing air cylinder has an arc-shaped guide surface therein.

[0009] The utility model has the following beneficial technical effects:

[0010] In the utility model, the temperature and dust content of the sintering flue gas are reduced by a water bath method, the heat contained in the sintering flue gas can be used to heat circulating water, and the circulating water can be used to supplement water for the boiler, thereby achieving the purpose of energy saving and environmental protection. In addition, the flue gas is in a turbulent state after being sent to the heat exchange section through the acceleration section, and the heat exchange efficiency with the circulating water heat absorption pipe is high, which is beneficial to the heating of the circulating water. The application is novel in design, stable in operation, and has strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of an embodiment of the utility model. DETAILED DESCRIPTION

[0012] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0013] In the description of the present utility model, unless otherwise specified, "multiple" means two or more than two; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0014] like Figure 1As shown, the sintered ore tail gas treatment equipment described in this embodiment includes a water pool 1, a smoke inlet section 2, a filling section 3, an acceleration section 4 and a heat exchange section 5 which are arranged in sequence from bottom to top; a circulating water heat absorption pipe 6 is arranged in the water pool 1 and the heat exchange section 5, and a water outlet pipe 7 is also connected to the water pool 1, and the water outlet pipe 7 is used to discharge the sewage in the water pool 1 at a regular and quantitative time, and the sewage downstream reaches the recycling standard after precipitation and acid-base neutralization treatment and other means, a plurality of smoke inlet pipes 8 are arranged in the smoke inlet section 2, and preferably four smoke inlet pipes 8 are distributed around the smoke inlet section 2, and the outlet of the smoke inlet pipe 8 is downward, so that the smoke first impacts the liquid surface of the water pool and then returns to flow upward, which is conducive to the smoke evenly filling the smoke inlet section 2 and entering the filling section 3, and a plurality of vertical filling sheets are evenly distributed in the filling section 3, and there is a gap between adjacent vertical filling sheets. , a plurality of spray water pipes 9 are arranged above the vertical filler sheets, and the water outlet of the plurality of spray water pipes 9 evenly covers the upper side of all the vertical filler sheets; the acceleration section 4 includes two symmetrically arranged dumbbell-shaped air cylinders, the throat of the air cylinder is provided with a vertically upward pressure gas nozzle 10, the upper side of the air cylinder is connected to a horizontal reversing air cylinder 11, the horizontal reversing air cylinder 11 has an arc-shaped guide surface 12, and a plurality of vertical spoiler rods 13 are arranged at the outlet of the horizontal reversing air cylinder 11, and the plurality of vertical spoiler rods 13 are evenly arranged along the front and rear directions. Preferably, the spacing between two adjacent vertical spoiler rods 13 is 10cm-20cm, and the outlets of the two horizontal reversing air cylinders 11 are opposite to and commonly connected to the heat exchange section 5, the upper side of the heat exchange section 5 is open, and the flue gas after preliminary treatment is discharged to the dust removal equipment or back to the sintering machine through the heat exchange section 5.

[0015] The portion of the circulating water heat absorption pipe 6 located in the water pool 1 is a bare pipe section, and the portion of the circulating water heat absorption pipe 6 located in the heat exchange section 5 is a serpentine coil section.

[0016] The working principle of this embodiment is:

[0017] The flue gas enters from the smoke inlet section 2 and flows upward through the packing section 3. In the process, it contacts with the spray water for heat exchange. The flue gas temperature is initially reduced, the dust is partially captured, and the droplets fall into the water pool 1. The flue gas continues to move upward through the acceleration section 4 and is accelerated to reach the outlet of the horizontal reversing wind tube 11. After passing through the vertical spoiler rod 13, multiple small vortices are formed behind the vertical spoiler rod 13. The small vortices sent out by the two horizontal reversing wind tubes 11 collide and break to form a turbulent airflow. Compared with the laminar airflow, the turbulent airflow has a higher heat exchange efficiency. The airflow and The circulating water heat absorption pipe 6 contacts and exchanges heat and then discharges from the heat exchange section 5. The circulating water for absorbing heat first passes through the water pool 1 and then passes through the heat exchange section 5. After absorbing heat, it can be used to supplement water for the boiler. In this embodiment, the temperature and dust content of the sintering flue gas are reduced by a water bath method. The heat contained in the sintering flue gas can be used to heat the circulating water, and the circulating water can be used to supplement water for the boiler, thereby achieving the purpose of energy saving and environmental protection. In addition, after the flue gas is sent to the heat exchange section 5 through the acceleration section 4, it is in a turbulent state, and the heat exchange efficiency with the circulating water heat absorption pipe 6 is high, which is conducive to the heating of the circulating water.

[0018] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and design various embodiments with various modifications suitable for specific uses.

Claims

1. Sintered ore tail gas treatment equipment, characterized in that: It includes a water pool, a smoke inlet section, a filling section, an acceleration section and a heat exchange section which are arranged in sequence from bottom to top; the water pool and the heat exchange section are both provided with circulating water heat absorption pipes, the water pool is also connected to a water outlet pipe, the smoke inlet section is provided with a plurality of smoke inlet pipes, the filling section is evenly distributed with a plurality of vertical filling sheets, and a plurality of spray water pipes are arranged above the vertical filling sheets; the acceleration section includes two symmetrically arranged dumbbell-shaped air ducts, the throat of the air duct is provided with a vertically upward pressure gas nozzle, the upper side of the air duct is connected to a horizontal reversing air duct, a plurality of vertical spoiler bars are arranged at the outlet of the horizontal reversing air duct, the outlets of the two horizontal reversing air ducts are opposite to and commonly connected to the heat exchange section, and the upper side of the heat exchange section is open.

2. The sintered ore tail gas treatment equipment according to claim 1, characterized in that: The portion of the circulating water heat absorbing pipe located in the water pool is a light pipe section, and the portion of the circulating water heat absorbing pipe located in the heat exchange section is a serpentine coil section.

3. The sintered ore tail gas treatment equipment according to claim 1, characterized in that: The outlet of the smoke inlet pipe is downward.

4. The sintered ore tail gas treatment equipment according to claim 1, characterized in that: The horizontal reversing air cylinder is provided with an arc-shaped flow guiding surface.

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