Disposal device for reducing high-temperature point of double-hearth kiln body

Abstract

The utility model discloses a disposal device for reducing a high-temperature point of a double-chamber kiln body, which relates to the technical field of disposal of the high-temperature point of the double-chamber kiln body and comprises a tapping machine capable of drilling holes in the double-chamber kiln body and a grouting machine capable of conveying grouting materials, and a grouting pipe is welded at the position of the high-temperature point on the double-chamber kiln body. The output end of the grouter is connected with the transition pipe through the hose, the other end of the transition pipe is provided with the valve capable of being connected with the grouting pipe, the heat preservation layer and air crossing gaps are filled through the technology of grouting outside the kiln shell, and therefore the temperature of the kiln shell is lowered, heat dissipation of the kiln shell is reduced, and the service life of refractory materials is remarkably prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of high temperature point treatment of a double-chamber kiln body, in particular to a treatment device for reducing the high temperature points of a double-chamber kiln body. Background Art

[0002] The double-bore kiln is a "parallel flow" and "heat storage" type double-bore vertical kiln. Influenced by its process characteristics, its main advantages include high thermal utilization rate, low exhaust gas temperature, low dust content, and wide fuel adaptability. Based on the above advantages, the market share of double-bore kilns is getting higher and higher. The refractory materials of double-bore vertical kilns can be composed of insulation layer and working layer. In recent years, due to ultra-low emissions and carbon emission control, the control of coal-fired double-bore kilns has become more and more stringent, and the number of newly built gas-fired double-bore kilns has gradually increased. However, due to the limited high calorific value gas of steel enterprises, the further development of gas-fired double-bore kilns has been restricted, and the gas-fired double-bore kilns have been frequently shut down. Frequent kiln shutdowns lead to continuous expansion and contraction of the lining refractory materials in the kiln body, resulting in the formation of through seams between the insulation layer and the working layer, and even the shedding of the insulation layer. Finally, there will be many high-temperature points in the kiln shell, which will have a certain impact on the life of the lining refractory materials. At the same time, the heat loss of the kiln shell increases, which affects the energy consumption. Utility Model Content

[0003] In order to overcome the defects in the prior art that the high temperature points of the double-chamber kiln body affect the lining refractory materials and increase the heat loss of the kiln shell, the utility model provides a treatment device for reducing the high temperature points of the double-chamber kiln body.

[0004] The technical solution adopted by the utility model to solve its technical problems is: a disposal device for reducing the high temperature points of a double-bore kiln body, comprising a hole-drilling machine capable of drilling holes in the double-bore kiln body and a grouting machine capable of conveying grouting material, a grouting pipe is welded at the high temperature point position on the double-bore kiln body, the output end of the grouting machine is connected to a transition pipe through a hose, and the other end of the transition pipe is provided with a valve capable of connecting the grouting pipe.

[0005] As a further improvement of the utility model, a ball valve is provided at the end of the grouting pipe, and the valve is connected to the ball valve.

[0006] As a further improvement of the utility model, a thread plug for plugging the grouting pipe is also included.

[0007] As a further improvement of the utility model, the hole-opening machine opens holes at 50 cm around the high-temperature point of the kiln body.

[0008] As a further improvement of the utility model, the grouting material adopts 65% high-aluminum grouting material and 35% resin binder.

[0009] As a further improvement of the utility model, a pressure gauge is provided on the grouting machine to monitor the pressure in real time.

[0010] Compared with the prior art, the utility model has the beneficial effects: the solution adopts the technology of external grouting of the kiln shell to fill the insulation layer and the gaps for air flow, thereby reducing the temperature of the kiln shell, reducing the heat dissipation of the kiln shell, and significantly improving the service life of the refractory material. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The utility model is further described below in conjunction with the accompanying drawings and specific implementation methods.

[0012] Figure 1 The utility model is a structural schematic diagram of a treatment device for reducing high temperature points of a double-chamber kiln.

[0013] In the figure: 1. hole opening machine; 2. grouting machine; 3. double-chamber kiln body; 4. grouting pipe; 5. hose; 6. transition pipe; 7. valve parts; 8. ball valve; 9. screw plug. DETAILED DESCRIPTION

[0014] In order to make the technical solution and beneficial effects of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0015] The refractory materials for the lining of a double-bore vertical kiln can be roughly summarized as consisting of an insulation layer and a working layer. The high temperature points in the kiln shell are mainly caused by wind cross-flow in the insulation layer to form through-cracks. The technology of external grouting of the kiln shell is used to fill the insulation layer and the gaps caused by wind cross-flow.

[0016] Reference Figure 1 The embodiment of the utility model discloses a treatment device for reducing the high temperature points of a double-chamber kiln body, comprising a hole punching machine 1 capable of drilling holes in the double-chamber kiln body 3 and a grouting machine 2 capable of conveying grouting material, a grouting pipe 4 is welded at the high temperature point position on the double-chamber kiln body 3, the output end of the grouting machine 2 is connected to a transition pipe 6 through a hose 5, and the other end of the transition pipe 6 is provided with a valve 7 capable of connecting to the grouting pipe 4.

[0017] The end of the grouting pipe 4 is provided with a ball valve 8, and the valve 7 is connected to the ball valve 8, which is used to seal the thread plug 9 of the grouting pipe 4. The hole opening machine 1 opens holes 50 cm around the high temperature point of the kiln body. When the kiln is stopped. The hole opening machine 1 opens holes at the high temperature points on the double-bore kiln body 3, and the local opening adopts the staggered method, and about 15-20 holes are opened in each chamber.

[0018] The welding work of the grouting pipe 4 and the installation work of the ball valve 8 are carried out at the opening part; the grouting machine 2 is connected, and the grouting material is 65% high-aluminum grouting material and 35% resin binder; the grouting should be carried out under normal production conditions, and the kiln pressure should be stabilized at 20kpa. The pressure of the grouting machine 2 is strictly controlled. The grouting machine 2 is equipped with a pressure gauge. The grouting pressure is controlled at 2-2.5MPa. The grouting amount at each location is determined according to the pressure difference of the pressure gauge. If a sudden increase or decrease in pressure is found during the grouting process, it will be stopped immediately. Combined with the actual situation on site, there may be large brick joints inside the grouting part. The construction process adopts the method of frequent hole replacement, less grouting, and intermittent repeated grouting to prevent the grouting material from entering the kiln through the gap.

[0019] During the grouting construction process, follow the order from bottom to top and open the surrounding grouting holes to observe the flow direction of the grouting material. During the grouting construction process, pay close attention to and check the pressure gauge of the grouting machine 2, the grouting pipe 4 and the status of each connection. If the adjacent grouting holes are found to be discharging material, immediately close their valves 7. After the grouting is completed, remove the ball valve 8 and install the screw plug 9 to plug the grouting pipe.

[0020] It should be understood that the specific embodiments described herein are only used to understand the present invention and are not used to limit the present invention. All other embodiments obtained by those skilled in the art without making any creative work are within the scope of protection of the present invention.

Claims

1. A treatment device for reducing the high temperature point of a double-chamber kiln, characterized in that: The invention comprises a hole punching machine (1) capable of drilling holes in a double-chamber kiln body (3) and a grouting machine (2) capable of conveying grouting material. A grouting pipe (4) is welded at a high-temperature point on the double-chamber kiln body (3). The output end of the grouting machine (2) is connected to a transition pipe (6) via a hose (5). The other end of the transition pipe (6) is provided with a valve (7) capable of connecting to the grouting pipe (4).

2. A device for reducing high temperature points of a double-chamber kiln according to claim 1, characterized in that: A ball valve (8) is provided at the end of the grouting pipe (4), and the valve (7) is connected to the ball valve (8).

3. A device for reducing high temperature points of a double-chamber kiln according to claim 2, characterized in that: It also includes a thread plug (9) for plugging the grouting pipe (4).

4. A device for reducing high temperature points of a double-chamber kiln according to claim 3, characterized in that: The hole-drilling machine (1) drills holes 50 cm around the high-temperature point of the kiln body.

5. A device for reducing high temperature points of a double-chamber kiln according to claim 4, characterized in that: The grouting material is 65% high-alumina grouting material and 35% resin binder.

6. A device for reducing high temperature points of a double-chamber kiln according to claim 5, characterized in that: The grouting machine (2) is provided with a pressure gauge.

Images