阅读说明：本技术 一种沥青储槽 (Asphalt storage tank ) 是由 廖志强 单春华 杨雪松 于 2020-12-28 设计创作，主要内容包括：本发明涉及煤焦化生产技术领域,尤其涉及一种沥青储槽。包括槽体、进料管、出料口与排渣口,所述出料口、排渣口固接于槽体的侧壁,进料管由槽体顶部引入,垂直延伸至槽底；所述槽体底部为倾斜的底板,斜板与混凝土基础间设有隔热层,进料管位于斜板的高侧,出料口和排渣口位于斜板的低侧。能有效减少沥青渣沉积,延长清渣周期,能有效减少槽底散热损失,节约了能耗。(The invention relates to the technical field of coal coking production, in particular to an asphalt storage tank. The device comprises a groove body, a feeding pipe, a discharging port and a slag discharging port, wherein the discharging port and the slag discharging port are fixedly connected to the side wall of the groove body, and the feeding pipe is introduced from the top of the groove body and vertically extends to the bottom of the groove; the bottom of the tank body is an inclined bottom plate, a heat insulation layer is arranged between the inclined plate and the concrete foundation, the feeding pipe is located on the high side of the inclined plate, and the discharging port and the slag discharging port are located on the low side of the inclined plate. Can effectively reduce the deposition of asphalt slag, prolong the slag cleaning period, effectively reduce the heat dissipation loss at the bottom of the tank and save energy consumption.)

1. An asphalt storage tank, which is characterized in that: the device comprises a groove body, a feeding pipe, a discharging port and a slag discharging port, wherein the discharging port and the slag discharging port are fixedly connected to the side wall of the groove body, and the feeding pipe is introduced from the top of the groove body and vertically extends to the bottom of the groove; the bottom of the tank body is an inclined bottom plate, a heat insulation layer is arranged between the inclined plate and the concrete foundation, the feeding pipe is located on the high side of the inclined plate, and the discharging port and the slag discharging port are located on the low side of the inclined plate.

2. An asphalt storage tank according to claim 1, wherein: the device also comprises a diffusing gas port, a breathing valve port, a manhole and a heater; the heater is fixedly connected on the side wall of the tank body, and the air release port, the breathing valve port and the manhole are fixedly connected on the top of the tank body.

3. An asphalt storage tank according to claim 1, wherein: the tank body is in a vault cylindrical shape.

4. An asphalt storage tank according to claim 1, wherein: and the side wall of the tank body and the outside of the top are provided with heat insulation cotton layers.

5. An asphalt storage tank according to claim 1, wherein: the horizontal inclination angle of the inclined plate is 3-20 degrees.

6. An asphalt storage tank according to claim 1, wherein: the heat insulation layer comprises a heat insulation refractory brick layer and a castable layer, the heat insulation refractory brick layer is formed by building heat insulation refractory bricks, the heat insulation refractory bricks at the bottom layer are built on a horizontal concrete foundation, and the top surface is built into an inclined plane with an inclination angle of 3-20 degrees; a high-strength pouring material layer is arranged between the heat-insulating refractory brick layer and the inclined plate.

7. An asphalt storage tank according to claim 1, wherein: and a heat conduction oil jacket sleeve is arranged outside the feeding pipe.

Technical Field

The invention relates to the technical field of coal coking production, in particular to an asphalt storage tank.

Background

Asphalt is an important product for tar processing and is generally stored by a fixed-top asphalt storage tank. Because of the high softening point, the asphalt is in a solid or gel state below 70 ℃, and begins to melt above 90 ℃, and the higher the temperature is, the better the fluidity is. Therefore, the asphalt storage tank ensures that the temperature of asphalt is controlled to be more than 200 ℃ by a heater arranged in the tank and a heat preservation method outside the tank, and the heating medium is heat conduction oil or steam. The side wall of the storage tank and the outer side of the vault are generally provided with insulating layers to reduce the heat dissipation of the asphalt storage tank to the atmosphere, but the heat dissipation of the bottom of the storage tank is often neglected. The bottom of the storage tank is contacted with the civil foundation, so that heat is inevitably radiated to the civil foundation, the heat transfer area is large and accounts for 10% -20% of the total heat transfer area, a large amount of heat loss is caused, and particularly, the heat loss is more serious due to high temperature of asphalt in the storage tank.

The bottom of a conventional asphalt storage tank is flat, asphalt slag in liquid asphalt is gradually deposited to the bottom of the tank under the action of gravity, and when the deposition affects normal production, the slag must be manually removed, so that a great deal of manpower and material resources are wasted. The stirrer is used for stirring the asphalt in the storage tank, and although a certain stirring effect can be achieved, the stirring effect of the stirrer is very little for a large asphalt storage tank.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention provides the asphalt storage tank which can effectively reduce the deposition of asphalt slag, prolong the slag removal period, effectively reduce the heat dissipation loss of the bottom of the tank and save energy consumption.

In order to achieve the purpose, the invention adopts the following technical scheme:

an asphalt storage tank comprises a tank body, a feeding pipe, a discharging port and a slag discharging port, wherein the discharging port and the slag discharging port are fixedly connected to the side wall of the tank body, and the feeding pipe is introduced from the top of the tank body and vertically extends to the bottom of the tank; the bottom of the tank body is an inclined bottom plate, a heat insulation layer is arranged between the inclined plate and the concrete foundation, the feeding pipe is located on the high side of the inclined plate, and the discharging port and the slag discharging port are located on the low side of the inclined plate.

The device also comprises a diffusing gas port, a breathing valve port, a manhole and a heater; the heater is fixedly connected on the side wall of the tank body, and the air release port, the breathing valve port and the manhole are fixedly connected on the top of the tank body.

The tank body is in a vault cylindrical shape.

And the side wall of the tank body and the outside of the top are provided with heat insulation cotton layers.

The horizontal inclination angle of the inclined plate is 3-20 degrees.

The heat insulation layer comprises a heat insulation refractory brick layer and a castable layer, the heat insulation refractory brick layer is formed by building heat insulation refractory bricks, the heat insulation refractory bricks at the bottom layer are built on a horizontal concrete foundation, and the top surface is built into an inclined plane with an inclination angle of 3-20 degrees; a high-strength pouring material layer is arranged between the heat-insulating refractory brick layer and the inclined plate.

And a heat conduction oil jacket sleeve is arranged outside the feeding pipe.

Compared with the prior art, the invention has the beneficial effects that:

1) the trough body of the invention adopts the inclined bottom plate, so that asphalt is fed from the high side of the inclined plate and discharged from the low side of the inclined plate, thus effectively reducing the deposition of asphalt slag, prolonging the slag cleaning period and reducing the labor intensity of manual slag cleaning.

2) The heat insulation layer between the inclined plate at the bottom of the storage tank and the concrete foundation adopts high-strength castable and heat insulation refractory bricks, and can effectively reduce the heat dissipation loss at the bottom of the storage tank and save energy consumption besides bearing the weight of the storage tank and liquid asphalt in the storage tank.

3) When the asphalt storage tank does not feed, asphalt adhered to the inner wall (above the liquid level) of the feeding pipe can be condensed and coked due to the fluctuation of the liquid level, and the whole pipeline can be blocked in the past, so that the asphalt cannot enter the storage tank when being fed. The heat conducting oil jacket pipe is arranged outside the feeding pipe, the heat conducting oil is introduced from the lower end of the jacket pipe and flows out from the upper end, the asphalt adhered to the wall of the feeding pipe is ensured to be in a molten state and can flow back to the position below the asphalt liquid level in time, and the feeding pipe is prevented from being blocked when the feeding pipe does not feed for a long time.

Drawings

FIG. 1 is a schematic diagram of the present invention.

In the figure: 1-groove body, 2-inclined plate, 3-feeding pipe, 4-heat conducting oil jacket pipe, 5-discharging port, 6-diffusing gas port, 7-breather valve port, 8-manhole, 9-slag discharging port, 10-heater, 11-heat preservation cotton layer, 12-heat insulation refractory brick layer, 13-casting material layer and 14-pipe hoop.

Detailed Description

The following further describes embodiments of the present invention with reference to the accompanying drawings:

as shown in figure 1, the asphalt storage tank comprises a tank body 1, a feeding pipe 3, a discharge hole 5, a slag discharge hole 9, a diffusion gas hole 6, a breather valve hole 7, a manhole 8 and a heater 10.

The tank body 1 is cylindrical, the side wall and the top of the tank body 1 are externally provided with a heat insulation cotton layer 11, and the heat insulation cotton layer 11 is used for reducing the heat dissipation of the asphalt storage tank to the atmosphere.

The bottom of the tank body 1 is an inclined bottom plate, the horizontal inclination angle of the inclined plate 2 is 5 degrees, and a heat insulation layer is arranged between the inclined plate 2 and the concrete foundation. The heat insulation layer comprises a heat insulation refractory brick layer 12 and a castable layer 13, the heat insulation refractory brick layer 12 is built by heat insulation refractory bricks, the heat insulation refractory bricks at the bottom of the heat insulation refractory brick layer 12 are built on a horizontal concrete foundation, and the top surface is built into an inclined plane with an inclination angle of 5 degrees. A high-strength castable layer 13 is arranged between the heat-insulating refractory brick layer 12 and the inclined plate 2.

The feeding pipe 3 is introduced from the top of the tank body 1 and vertically extends to the bottom of the tank, the feeding pipe 3 is fixed on the inner wall of the tank body 1 through a pipe hoop 14, and a heat conduction oil jacket pipe 4 is arranged outside the feeding pipe 3. The feed pipe 3 is located on the high side of the inclined plate 2.

When the asphalt storage tank does not feed, asphalt adhered to the inner wall (above the liquid level) of the feeding pipe 3 can be condensed and coked due to the fluctuation of the liquid level, and the whole pipeline can be blocked in the past, so that the asphalt cannot enter the storage tank when being fed. The heat conduction oil jacket sleeve 4 is arranged outside the feeding pipe 3, heat conduction oil is introduced from the lower end of the jacket sleeve 4 and flows out from the upper end, asphalt adhered to the wall of the feeding pipe 3 is guaranteed to be in a melting state and can flow back to the position below the asphalt liquid level in time, and the feeding pipe 3 is prevented from being blocked when no feeding is carried out for a long time.

The discharge port 5 and the slag discharge port 9 are fixedly connected to the side wall of the tank body 1, and the discharge port 5 and the slag discharge port 8 are positioned at the lower side of the inclined plate 2.

The heater 10 is fixedly connected on the side wall of the tank body 1, and the air diffusing port 6, the breather valve port 7 and the manhole 8 are fixedly connected on the top of the tank body 1.

The tank body 1 adopts the inclined bottom plate, so that asphalt is fed from the high side of the inclined plate 2, and discharged from the low side of the inclined plate 2, thus effectively reducing asphalt slag deposition, prolonging slag cleaning period and reducing labor intensity of manual slag cleaning. The heat insulation layer between the inclined plate 2 at the bottom of the storage tank and the concrete foundation adopts high-strength castable and heat insulation refractory bricks, and can effectively reduce the heat dissipation loss at the bottom of the tank and save energy consumption besides bearing the weight of the storage tank and liquid asphalt in the storage tank.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.