Colored asphalt cement flue gas recovery combustion device

Abstract

The colored asphalt cement flue gas recovery and combustion device comprises a smelting tank used for melting asphalt, an asphalt heating mechanism and a gas recovery pipe, a first through hole and a discharging port are formed in the bottom of the side wall of the smelting tank, a second through hole, a feeding port and a gas outlet hole are formed in the top of the smelting tank, and the asphalt heating mechanism comprises a combustor and a heat conduction pipe. The head end of the heat conduction pipe penetrates into the smelting tank from the first through hole and penetrates out of the smelting tank from the second through hole, the heat conduction pipe can be immersed in the asphalt, and the flaming end of the combustor is communicated with the tail end of the heat conduction pipe; the colored asphalt cement flue gas recovery and combustion device belongs to the technical field of asphalt preparation, and can be used for recovering steam generated during asphalt melting, so that the cost is saved, and the environment is protected.

Description

Technical Field

[0001] The utility model relates to a color asphalt binder fume recovery and combustion device, belonging to the technical field of asphalt preparation. Background Art

[0002] At present, a large amount of flue gas is generated during the heating and melting process of colored asphalt. The flue gas mainly contains low-carbon chain hydrocarbons, as well as a small amount of ammonia, sulfur heterocyclic compounds and polycyclic aromatic hydrocarbons (PAH), as well as pyridine and benzopyrene, which cause environmental pollution. The flue gas is passed into the flue gas treatment device, which further treats the flue gas, increasing the cost. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a color asphalt binder fume recovery and combustion device, which can recover and process the steam generated when the asphalt is melted, thereby saving costs and protecting the environment.

[0004] The technical solution of the utility model to solve the above technical problems is as follows: a color asphalt binder fume recovery and combustion device, comprising:

[0005] A smelting tank for melting asphalt, wherein the bottom of the side wall of the smelting tank is provided with a first through hole and a material outlet, and the top is provided with a second through hole, a material inlet and an air outlet.

[0006] An asphalt heating mechanism, the asphalt heating mechanism comprising a burner and a heat conducting pipe, the head end of the heat conducting pipe penetrates into the smelting tank from the first through hole and passes out of the smelting tank from the second through hole, the heat conducting pipe can be immersed in the asphalt, and the flame spraying end of the burner is connected to the end of the heat conducting pipe;

[0007] A gas recovery pipe, one end of which is connected to the gas outlet, and the other end of which is connected to the flame spraying end of the burner.

[0008] The beneficial effects of the utility model are as follows: asphalt is added into the smelting tank, the asphalt covers the periphery of the heat conducting pipe, the burner heats the heat conducting pipe, the heat conducting pipe transfers the heat to the asphalt to make it molten, and at the same time, asphalt vapor is generated. The asphalt vapor is output from the gas outlet, and is transported to the burner blasting port through the gas recovery pipe for combustion treatment, so as to prevent direct discharge into the air to pollute the environment.

[0009] On the basis of the above technical solution, the present invention can also be improved as follows.

[0010] Furthermore, it also includes an induced draft fan, which is installed on the gas recovery pipe and is used to transport the evaporated asphalt vapor in the smelting tank to the flame spraying end of the burner.

[0011] The beneficial effect of adopting the above further scheme is that the induced draft fan can transport the asphalt vapor in the smelting tank to the flame end of the burner to burn it, thereby preventing the asphalt vapor from being released into the air and polluting the environment.

[0012] Furthermore, a plurality of heat-conducting fins are fixed on the outer wall of the heat-conducting pipe.

[0013] The beneficial effects of adopting the above further scheme are: improving the heat dissipation effect and increasing the heating rate of asphalt.

[0014] Furthermore, the heat conducting pipe has an S-shaped curve segment and a straight line segment connected end to end, one end of the S-shaped curve segment is connected to the flame spraying end of the burner, and the straight line segment passes through the second through hole.

[0015] The beneficial effects of adopting the above further solution are: increasing the contact area between the asphalt and the heat conducting pipe and improving the heating rate of the asphalt.

[0016] Furthermore, the outer wall of the smelting tank is provided with a heat-insulating layer.

[0017] Furthermore, it also includes a sealing door plate for sealing the discharge port, and the sealing door plate is rotatably connected to the outer wall of the smelting tank through hinges.

[0018] Furthermore, it also includes a heat-insulating cover for sealing the feed port, and the heat-insulating cover is rotatably connected to the outer wall of the smelting tank through a hinge. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic structural diagram of the colored asphalt binder fume recovery and combustion device provided by the utility model.

[0020] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0021] 1-smelting tank, 11-discharging port, 2-asphalt heating mechanism, 21-burner, 22-heat conduction pipe, 3-gas recovery pipe, 4-induced draft fan, 5-asphalt, 6-conveying direction. DETAILED DESCRIPTION

[0022] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0023] The utility model aims to provide a color asphalt binder fume recovery and combustion device to solve the problems existing in the prior art, and can recover and process the steam generated when the asphalt is melted, thereby saving costs and protecting the environment.

[0024] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0025] The utility model provides a color asphalt binder fume recovery and combustion device, such as Figure 1 As shown, it includes: a smelting tank 1 for melting asphalt 5, an asphalt heating mechanism 2 and a gas recovery pipe 3. The bottom of the side wall of the smelting tank 1 is provided with a first through hole and a discharge port 11, and the top is provided with a second through hole, a feed port and an air outlet. The asphalt heating mechanism 2 includes a burner 21 and a heat pipe 22. The head end of the heat pipe 22 penetrates into the smelting tank 1 from the first through hole and passes out of the smelting tank 1 from the second through hole. The heat pipe 22 can be immersed in the asphalt 5. The flame-spraying end of the burner 21 is connected to the end of the heat pipe 22; one end of the gas recovery pipe 3 is connected to the air outlet, and the other end is connected to the flame-spraying end of the burner 21.

[0026] The colored asphalt melting equipment provided by the utility model adds asphalt 5 into the smelting tank 1, the asphalt 5 covers the heat pipe 22, the burner 21 heats the heat pipe 22, and the heat pipe 22 transfers the heat to the asphalt 5 to make it molten, and at the same time, asphalt steam is also generated. The asphalt steam is output from the gas outlet, and is transported to the burner 21 through the gas recovery pipe 3 for combustion treatment, so as to prevent direct discharge into the air to pollute the environment.

[0027] In a specific embodiment of the utility model, the induced draft fan 4 is further included. The induced draft fan 4 is installed on the gas recovery pipe 3 and is used to transport the evaporated asphalt vapor in the smelting tank 1 to the flame spraying end of the burner 21.

[0028] The induced draft fan 4 can transport the asphalt vapor in the smelting tank 1 to the flame-spraying end of the burner 21 along the transport direction 6 to burn it, thereby preventing the asphalt vapor from being released into the air and polluting the environment.

[0029] In a specific embodiment of the present invention, a plurality of heat-conducting fins are fixed on the outer wall of the heat-conducting pipe 22 to improve the heat dissipation effect and increase the heating rate of the asphalt 5 .

[0030] In a specific embodiment of the utility model, the heat conducting pipe 22 has an S-shaped curve segment and a straight line segment connected end to end, one end of the S-shaped curve segment is connected to the flame spraying end of the burner 21, and the straight line segment passes through the second through hole.

[0031] The contact area between the asphalt 5 and the heat conducting pipe 22 is increased, and the heating rate of the asphalt 5 is increased.

[0032] In a specific embodiment of the utility model, the outer wall of the smelting tank 1 is provided with a heat-insulating layer.

[0033] In a specific embodiment of the utility model, a sealing door plate for sealing the discharge port 11 is also included, and the sealing door plate is rotatably connected to the outer wall of the smelting tank 1 through hinges.

[0034] In a specific embodiment of the utility model, it also includes a heat-insulating cover for sealing the feed port, and the heat-insulating cover is rotatably connected to the outer wall of the smelting tank 1 through a hinge.

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. Colored asphalt binder fume recovery and combustion device, characterized in that: include: A smelting tank (1) for melting asphalt (5), wherein the bottom of the side wall of the smelting tank (1) is provided with a first through hole and a material outlet (11), and the top is provided with a second through hole, a material inlet and an air outlet. An asphalt heating mechanism (2), the asphalt heating mechanism (2) comprising a burner (21) and a heat conducting pipe (22), the head end of the heat conducting pipe (22) passing through the first through hole and passing through the second through hole to pass through the smelting tank (1), the heat conducting pipe (22) can be immersed in the asphalt (5), and the flame spraying end of the burner (21) is connected to the end of the heat conducting pipe (22); A gas recovery pipe (3), one end of the gas recovery pipe (3) is connected to the gas outlet hole, and the other end is connected to the flame spraying end of the burner (21).

2. The colored asphalt binder fume recovery and combustion device according to claim 1 is characterized in that: It also includes an induced draft fan (4), which is installed on the gas recovery pipe (3) and is used to transport the evaporated asphalt vapor in the smelting tank (1) to the flame spraying end of the burner (21).

3. The colored asphalt binder fume recovery and combustion device according to claim 1 is characterized in that: A plurality of heat-conducting fins are fixed on the outer wall of the heat-conducting pipe (22).

4. The colored asphalt binder fume recovery and combustion device according to claim 1 is characterized in that: The heat conducting pipe (22) comprises an S-shaped curve segment and a straight line segment connected end to end, one end of the S-shaped curve segment is connected to the flame spraying end of the burner (21), and the straight line segment passes through the second through hole.

5. The colored asphalt binder fume recovery and combustion device according to claim 1 is characterized in that: The outer wall of the smelting tank (1) is provided with a heat-insulating layer.

6. The colored asphalt binder fume recovery and combustion device according to claim 1 is characterized in that: It also includes a sealing door plate for sealing the discharge port (11), and the sealing door plate is rotatably connected to the outer wall of the smelting tank (1) through hinges.

7. The colored asphalt binder fume recovery and combustion device according to claim 1 is characterized in that: It also includes a heat-insulating cover for sealing the feed port, and the heat-insulating cover is rotatably connected to the outer wall of the smelting tank (1) through a hinge.

Images