1. The utility model provides an improve device of mixture material temperature and improvement bed of material gas permeability which characterized in that: the device comprises a cross beam, wherein a first support and a second support are vertically and fixedly arranged at two ends of the lower surface of the cross beam; the upper layer material dredging unit and the lower layer material dredging unit are arranged on the first support and the second support;

the upper layer material dredging unit comprises a first air inlet pipe arranged on the first support; an upper layer material dredging pipe is formed on the lower horizontal material dredging pipe section of the first air inlet pipe; the upper end of the first air inlet pipe is connected with an air source, the other end of the first air inlet pipe is a closed end and extends to the second support, an upper material dispersing device is vertically and downwards mounted on an upper material dispersing pipe of the first air inlet pipe, and the lower end of the upper material dispersing device is a blind end; the outer wall of each upper layer material dredging device is obliquely downwards provided with a plurality of upper layer material dredging rods communicated with the upper layer material dredging devices, and the upper layer material dredging rods are provided with a plurality of air holes;

the lower layer material dredging unit comprises a second air inlet pipe arranged on the second support; a lower layer material dredging pipe is formed on the lower horizontal material dredging pipe section of the second air inlet pipe; the upper end of the second air inlet pipe is connected with an air source, the other end of the second air inlet pipe is a closed end and extends to the first support, a lower material dispersing device is vertically and downwards mounted on a lower material dispersing pipe of the second air inlet pipe, and the lower end of the lower material dispersing device is a blind end; the outer wall of each lower-layer material dredging device is obliquely downwards provided with a plurality of lower-layer material dredging rods communicated with the lower-layer material dredging devices, and the lower-layer material dredging rods are provided with a plurality of air holes.

2. The device for improving the material temperature of the mixture and improving the air permeability of the material layer according to claim 1 is characterized in that: the distance between two adjacent material thinning devices in the upper material thinning unit and the lower material thinning unit is arranged in a non-equidistant mode, the distance gradually increases from the center to the edge of the sintering machine trolley, namely, material thinning sparse areas are formed on two sides, and a material thinning dense area is formed in the middle.

3. The device for improving the material temperature of the mixture and improving the air permeability of the material layer according to claim 1 is characterized in that: the upper material dispersing device and the lower material dispersing device are arranged in a staggered mode in the vertical direction, and the number of the material dispersing devices for the lower material dispersing pipes is larger than that of the upper material dispersing devices.

4. A method for improving the material temperature of a mixture and improving the air permeability of a material layer is characterized by comprising the following steps: introducing a hot air source with the temperature of not less than 100 ℃ into an external pipeline, introducing the hot air source into the trolley through a first air inlet pipe and/or a second air inlet pipe in the device of any one of claims 1 to 3, introducing the introduced hot air source into an upper material dredging pipe and/or a lower material dredging pipe from the upper layer material dredging pipe and/or the lower layer material dredging pipe, introducing the introduced hot air source into corresponding material dredging rods from the upper layer material dredging pipe and/or the lower layer material dredging pipe, and finally spraying the hot air source onto the mixture on the trolley through air holes in the material dredging rods so as to improve the temperature of the mixture; meanwhile, the upper layer and the lower layer of the material dredging pipe and the material dredging device on the material dredging pipe loosen the mixture on the trolley, so that the air permeability of the material layer can be improved.

5. The device for improving the material temperature of the mixture and improving the air permeability of the material layer according to claim 4 is characterized in that: the hot air source is steam, hot air or a mixed air source of the steam and the hot air; wherein the steam temperature is not lower than 200 ℃; the temperature of the hot air is not lower than 100 ℃.

Background

And sintering production, namely uniformly paving the uniformly mixed materials on a trolley, and then igniting to perform air draft sintering. At present, the sintering machine is because the mixture temperature is low, and bed of material gas permeability is poor, and it is serious to cause the too wet layer of sintering process, and the production negative pressure is high, and sintering cloth thickness is low, and the sintering ore output is low, and fuel consumption is high, how to improve sintering mixture temperature and bed of material gas permeability, is the problem that the sintering field needs a lot of solution.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a device and a method for improving the temperature of a mixture, improving the air permeability of a material layer, increasing the thickness of sintered cloth, improving the quality of sintered mineral products and reducing the fuel consumption.

The invention is realized in this way, a device for improving the material temperature of the mixture and the air permeability of the material layer is characterized in that: the device comprises a cross beam, wherein a first support and a second support are vertically and fixedly arranged at two ends of the lower surface of the cross beam; the upper layer material dredging unit and the lower layer material dredging unit are arranged on the first support and the second support;

the upper layer material dredging unit comprises a first air inlet pipe arranged on the first support; an upper layer material dredging pipe is formed on the lower horizontal material dredging pipe section of the first air inlet pipe; the upper end of the first air inlet pipe is connected with an air source, the other end of the first air inlet pipe is a closed end and extends to the second support, an upper material dispersing device is vertically and downwards mounted on an upper material dispersing pipe of the first air inlet pipe, and the lower end of the upper material dispersing device is a blind end; the outer wall of each upper layer material dredging device is obliquely downwards provided with a plurality of upper layer material dredging rods communicated with the upper layer material dredging devices, and a plurality of air holes are formed in the upper layer material dredging rods and the lower layer material dredging rods;

the lower layer material dredging unit comprises a second air inlet pipe arranged on the second support; a lower layer material dredging pipe is formed on the lower horizontal material dredging pipe section of the second air inlet pipe; the upper end of the second air inlet pipe is connected with an air source, the other end of the second air inlet pipe is a closed end and extends to the first support, a lower material dispersing device is vertically and downwards mounted on a lower material dispersing pipe of the second air inlet pipe, and the lower end of the lower material dispersing device is a blind end; the outer wall of each lower-layer material dredging device is obliquely downwards provided with a plurality of lower-layer material dredging rods communicated with the lower-layer material dredging devices, and the lower-layer material dredging rods are provided with a plurality of air holes.

Preferably, the distance between two adjacent material thinning devices in the upper layer material thinning unit and the lower layer material thinning unit is arranged in a non-equidistant mode, the distance gradually increases from the center to the edge of the sintering machine trolley, namely, material thinning sparse areas are formed on two sides, and a material thinning dense area is formed in the middle.

The upper material dispersing device and the lower material dispersing device are arranged in a staggered mode in the vertical direction, and the number of the material dispersing devices of the lower material dispersing pipe is larger than that of the upper material dispersing pipe.

The invention also discloses a method for improving the material temperature of the mixture and improving the air permeability of the material layer, which is characterized by comprising the following steps: a hot gas source not lower than 100 ℃ is introduced into an external pipeline, enters the trolley through the first air inlet pipe and/or the second air inlet pipe of any one of claims 1 to 3, enters the upper layer material dredging device and/or the lower layer material dredging device from the upper layer material dredging pipe and/or the lower layer material dredging pipe, enters the corresponding material dredging rods from the upper layer material dredging device and the lower layer material dredging device, and is finally sprayed on the mixture on the trolley from the air holes in the material dredging rods, so that the temperature of the mixture is increased; meanwhile, the upper layer and the lower layer of the material dredging pipe and the material dredging device on the material dredging pipe loosen the mixture on the trolley, so that the air permeability of the material layer can be improved.

The hot air source is steam, hot air or a mixed air source of the steam and the hot air; wherein the steam temperature is not lower than 200 ℃; the temperature of the hot air is not lower than 100 ℃.

The invention has the advantages and technical effects that: the device is fixed at the lower front position of a distributing device of the sintering machine, the first air inlet pipe and/or the second air inlet pipe are/is respectively connected with an external pipeline, and steam, hot air or other air sources are introduced into the first air inlet pipe and/or the second air inlet pipe by the external pipeline. Steam, hot air or other air sources enter the upper layer material dredging unit and the lower layer material dredging unit through the first air inlet pipe and/or the second air inlet pipe, the steam, the hot air or other air sources entering the upper layer material dredging unit and the lower layer material dredging unit enter the material dredging device, then pass through the material dredging rod, and finally are sprayed on the mixture on the trolley through the air holes on the material dredging rod; thereby improving the temperature of the mixture, improving the air permeability of the material layer, increasing the thickness of the cloth, improving the quality of sintered mineral products and reducing the fuel consumption.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

In the figure, 1, a cross beam 2 and a first bracket; 3. a second bracket; 4. an upper layer material dredging unit; 4-1, an upper layer material dredging pipe; 5. a lower layer material dredging unit; 5-1, a lower layer material dredging pipe; 6-1, an upper layer material thinning device; 6-2, a lower layer material dredging device; 7. a first intake pipe; 8. a second air inlet pipe 9 and a trolley; 10-1, an upper layer of material dredging rod; 10-2, a lower layer material dredging rod; 11. and (4) air holes.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1, the device for improving the material temperature of the mixture and improving the air permeability of the material layer comprises a beam 1, and a first bracket 2 and a second bracket 3 are vertically and fixedly installed at two ends of the lower surface of the beam; the upper layer dredging unit 4 and the lower layer dredging unit 5 are arranged on the first bracket and the second bracket;

the upper layer material dredging unit 4 comprises a first air inlet pipe 7 arranged on the first support; an upper layer material dredging pipe 4-1 is formed on a lower horizontal material dredging pipe section of the first air inlet pipe; the upper end of the first air inlet pipe is connected with an air source, the other end of the first air inlet pipe is a closed end and extends to the second support, an upper material dispersing device 6-1 is vertically and downwards mounted on an upper material dispersing pipe of the first air inlet pipe, and the lower end of the upper material dispersing device is a blind end; the outer wall of each upper layer material dredging device is obliquely downwards provided with a plurality of upper layer material dredging rods 10-1 communicated with the upper layer material dredging devices, and a plurality of air holes 11 are formed in the upper layer material dredging rods and the lower layer material dredging rods;

the lower-layer material dredging unit 5 comprises a second air inlet pipe 8 arranged on a second support; a lower layer material dredging pipe 5-1 is formed on the lower horizontal material dredging pipe section of the second air inlet pipe; the upper end of the second air inlet pipe is connected with an air source, the other end of the second air inlet pipe is a closed end and extends to the first support, a lower material dispersing device 6-2 is vertically and downwards mounted on a lower material dispersing pipe of the second air inlet pipe, and the lower end of the lower material dispersing device is a blind end; the outer wall of each lower-layer material dredging device is obliquely downwards provided with a plurality of lower-layer material dredging rods 10-2 communicated with the material dredging device, and the upper-layer material dredging rods and the lower-layer material dredging rods are respectively provided with a plurality of air holes.

The device is fixed at the lower front position of a sintering machine distributing device, a first air inlet pipe and/or a second air inlet pipe in the trolley 9 are/is respectively connected with an external pipeline, and steam, hot air or other air sources are introduced into the first air inlet pipe and/or the second air inlet pipe through the external pipeline. Steam, hot air or other air sources enter the upper layer material dredging unit and the lower layer material dredging unit through the first air inlet pipe and/or the second air inlet pipe, the steam, the hot air or other air sources entering the upper layer material dredging unit and the lower layer material dredging unit enter the material dredging device, then pass through the material dredging rod, and finally are sprayed on the mixture on the trolley through the air holes on the material dredging rod; thereby improving the temperature of the mixture, improving the air permeability of the material layer, increasing the thickness of the cloth, improving the quality of sintered mineral products and reducing the fuel consumption.

Preferably, the distance between two adjacent material thinning devices in the upper layer material thinning unit and the lower layer material thinning unit is arranged in a non-equidistant mode, the distance gradually increases from the center to the edge of the sintering machine trolley, namely, material thinning sparse areas are formed on two sides, and a material thinning dense area is formed in the middle.

The upper material dispersing devices and the lower material dispersing devices are arranged in a staggered mode in the vertical direction, and the number of the material dispersing devices of the lower material dispersing pipes is more than that of the upper material dispersing pipes; firstly, the upper portion mixture has the pressure material effect to the lower part mixture, and bed of material thickness is thicker, presses the material effect bigger, secondly the mixture falls from the distributing device, and the difference in height that falls is bigger, and the gas permeability is worse, and the gas permeability of lower part mixture is inferior to upper portion mixture promptly, and the sintering field is known, needn't explain the bar. By adopting the arrangement, the mixture at each position in the trolley can be loosened, and meanwhile, the air permeability of the mixture at the lower part of the trolley can be emphatically improved.

The invention also discloses a method for improving the material temperature of the mixture and improving the air permeability of the material layer, wherein a hot gas source with the temperature of not less than 100 ℃ is introduced into an external pipeline, and the hot gas source is steam, hot air or a mixed gas source of the steam and the hot air; wherein the steam temperature is not lower than 200 ℃; the temperature of the hot air is not lower than 100 ℃; the hot air source enters the trolley through the first air inlet pipe and/or the second air inlet pipe of the device, the introduced hot air source enters the upper material dispersing device and/or the lower material dispersing device from the upper material dispersing pipe and/or the lower material dispersing pipe, then enters the corresponding material dispersing rod from the upper material dispersing device and the lower material dispersing device, and finally the hot air source is sprayed on the mixture on the trolley through the air holes in the material dispersing rod, so that the temperature of the mixture is increased; meanwhile, the upper layer and the lower layer of the material dredging pipe and the material dredging device on the material dredging pipe loosen the mixture on the trolley, so that the air permeability of the material layer can be improved.

The specific application examples are as follows:

example 1

A method for improving material temperature of mixture and improving air permeability of material layer is disclosed in figure 1, wherein the gas source introduced into the external pipeline is steam, and the steam temperature is 280 ℃. Steam in an external pipeline enters the device through a first air inlet pipe in a first support, introduced steam enters an upper-layer material dredging pipe from the opening end of the upper-layer material dredging pipe, then enters each material dredging device through the upper-layer material dredging pipe, then enters a material dredging rod from the material dredging device, and finally is sprayed on a mixture on the trolley through air holes in the material dredging rod, so that the temperature of the mixture is increased; meanwhile, the upper layer and the lower layer of the material dredging pipe and the material dredging device on the material dredging pipe loosen the mixture on the trolley, so that the air permeability of the material layer can be improved.

After the method is applied, the thickness of the sintering material layer is increased by 30mm, the burning consumption of the sintering solid is reduced by 3kg/t, and the sintering utilization coefficient is increased by 2 percent.

Example 2

A method for improving material temperature of mixture and improving air permeability of material layer is disclosed in figure 1, wherein the gas source introduced into the external pipeline is steam, and the steam temperature is 280 ℃. Steam in an external pipeline enters the device through a second air inlet pipe in a second support, introduced steam enters a lower-layer material dredging pipe from the open end of an upper-layer material dredging pipe, then enters each material dredging device through the lower-layer material dredging pipe, then enters a material dredging rod from the material dredging device, and finally is sprayed on a mixture on the trolley through air holes in the material dredging rod, so that the temperature of the mixture is improved; meanwhile, the upper layer and the lower layer of the material dredging pipe and the material dredging device on the material dredging pipe loosen the mixture on the trolley, so that the air permeability of the material layer can be improved.

After the method is applied, the thickness of the sintering material layer is increased by 20mm, the burning consumption of the sintering solid is reduced by 2kg/t, and the sintering utilization coefficient is increased by 1%.

Example 3

A method for improving material temperature of mixture and improving air permeability of material layer is disclosed in figure 1, wherein the gas source introduced into the external pipeline is steam, and the steam temperature is 280 ℃. Steam in an external pipeline enters the device through a first air inlet pipe and a second air inlet pipe in a first support and a second support, introduced steam enters an upper layer material dredging pipe and a lower layer material dredging pipe from the open ends of the upper layer material dredging pipe and the lower layer material dredging pipe, then enters each material dredging device through the upper layer material dredging pipe and the lower layer material dredging pipe, then enters a material dredging rod from the material dredging devices, and finally is sprayed on a mixture on the trolley through air holes in the material dredging rod, so that the temperature of the mixture is increased; meanwhile, the upper layer and the lower layer of the material dredging pipe and the material dredging device on the material dredging pipe loosen the mixture on the trolley, so that the air permeability of the material layer can be improved.

After the method is applied, the thickness of the sintering material layer is increased by 60mm, the burning consumption of the sintering solid is reduced by 6kg/t, and the sintering utilization coefficient is increased by 6%.

Example 4

A method for improving material temperature of mixture and improving air permeability of material layer is disclosed in figure 1, wherein the gas source introduced into the external pipeline is steam, and the steam temperature is 220 ℃. Steam in an external pipeline enters the device through a first air inlet pipe and a second air inlet pipe in a first support and a second support, introduced steam enters an upper layer material dredging pipe and a lower layer material dredging pipe from the open ends of the upper layer material dredging pipe and the lower layer material dredging pipe, then enters each material dredging device through the upper layer material dredging pipe and the lower layer material dredging pipe, then enters a material dredging rod from the material dredging devices, and finally is sprayed on a mixture on the trolley through air holes in the material dredging rod, so that the temperature of the mixture is increased; meanwhile, the upper layer and the lower layer of the material dredging pipe and the material dredging device on the material dredging pipe loosen the mixture on the trolley, so that the air permeability of the material layer can be improved.

After the method is applied, the thickness of the sintering material layer is increased by 50mm, the burning consumption of the sintering solid is reduced by 4kg/t, and the sintering utilization coefficient is increased by 4%.

Example 5

A method for improving the material temperature of a mixture and improving the air permeability of a material layer is disclosed, as shown in figure 1, an air source introduced by an external pipeline is hot air at a low-temperature section of a circular cooler, and the temperature of the hot air is 200 ℃. Hot air in an external pipeline enters the device through a first air inlet pipe and a second air inlet pipe in a first support and a second support, introduced hot air enters an upper layer material dredging pipe and a lower layer material dredging pipe from the open ends of the upper layer material dredging pipe and the lower layer material dredging pipe, then enters each material dredging device through the upper layer material dredging pipe and the lower layer material dredging pipe, then enters a material dredging rod from the material dredging devices, and finally hot air is sprayed on a mixture on the trolley through air holes in the material dredging rod, so that the temperature of the mixture is improved; meanwhile, the upper layer and the lower layer of the material dredging pipe and the material dredging device on the material dredging pipe loosen the mixture on the trolley, so that the air permeability of the material layer can be improved.

After the method is applied, the thickness of the sintering material layer is increased by 10mm, the burning consumption of the sintering solid is reduced by 2kg/t, and the sintering utilization coefficient is increased by 1%.

Example 6

A method for improving the material temperature of a mixture and improving the air permeability of a material layer is shown in figure 1, and an air source introduced by an external pipeline is a mixed gas of hot air at 200 ℃ and steam at 280 ℃ in a low-temperature section of a circular cooler. The mixed gas in the external pipeline enters the device through a first air inlet pipe and a second air inlet pipe in a first support and a second support, the introduced mixed gas enters an upper layer material dredging pipe and a lower layer material dredging pipe from the open ends of the upper layer material dredging pipe and the lower layer material dredging pipe, then enters each material dredging device through the upper layer material dredging pipe and the lower layer material dredging pipe, then enters a material dredging rod from the material dredging devices, and finally the mixed gas is sprayed on the mixed material on the trolley through air holes in the material dredging rod, so that the temperature of the mixed material is improved; meanwhile, the upper layer and the lower layer of the material dredging pipe and the material dredging device on the material dredging pipe loosen the mixture on the trolley, so that the air permeability of the material layer can be improved.

After the method is applied, the thickness of the sintering material layer is increased by 40 percent, the burning consumption of the sintering solid is reduced by 4kg/t, and the sintering utilization coefficient is increased by 4 percent.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.