Device for collecting and treating tar processed product loading flue gas

Abstract

The utility model relates to the technical field of flue gas treatment, in particular to a device for collecting and treating tar processed product loading flue gas. In order to solve the problem that the truck loading flue gas treatment effect is not ideal, the novel device for collecting and treating the truck loading flue gas of the tar processed products is provided, a top flue gas outlet of a flue gas washing tower is communicated with a venturi flue gas inlet of a venturi tube, and a bottom end washing oil outlet of the flue gas washing tower is communicated with a washing oil inlet of a flue gas washing tank; a top washing oil inlet of the smoke washing tower and a top end inlet of the venturi tube are both communicated with a smoke washing outlet of the smoke washing pump, a smoke washing inlet of the smoke washing pump is communicated with a bottom washing oil outlet of the smoke washing tank, a bottom end outlet of the venturi tube is communicated with a top venturi inlet of the smoke washing tank, and a top smoke outlet of the smoke washing tank is communicated with a smoke inlet of the activated carbon box. A flue gas outlet of the activated carbon box is communicated with an induced air inlet of the induced draft fan. According to the truck loading flue gas collecting and processing device, the flue gas processing effect is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of flue gas treatment, in particular to a device for collecting and treating the loading flue gas of tar processing products. Background Technique

[0002] With the increasing requirements for flue gas emission indexes, flue gas treatment has become a key step in industrial production. When collecting and treating the loading flue gas of existing tar processing products, the loading flue gas is mainly washed through a venturi tube and then discharged into a torch. However, this treatment process is relatively simple and single, and the treatment of the loading flue gas is not thorough and the treatment effect is not ideal. Summary of the Invention

[0003] In order to solve the problem of unsatisfactory treatment effect of the loading flue gas when using the existing method for collecting and treating the loading flue gas of tar processing products, the utility model provides a new device for collecting and treating the loading flue gas of tar processing products.

[0004] The utility model is realized by adopting the following technical scheme:

[0005] A device for collecting and treating the loading flue gas of tar processing products, comprising:

[0006] A smoke washing tower, which is provided with a bottom flue gas inlet, a bottom washing oil outlet, a top flue gas outlet, and a top washing oil inlet;

[0007] A venturi tube, which is provided with a top inlet, a bottom outlet, and an upper part of its side wall is provided with a venturi flue gas inlet;

[0008] A smoke washing pump, which is provided with a smoke washing inlet and a smoke washing outlet;

[0009] A smoke washing tank, which is provided with a bottom washing oil outlet, a top flue gas outlet, a washing oil inlet, and a top venturi inlet;

[0010] An activated carbon box, which is provided with a flue gas inlet and a flue gas outlet;

[0011] An induced draft fan, which is provided with an induced draft inlet and an induced draft outlet;

[0012] The top flue gas outlet of the smoke washing tower is communicated with the venturi flue gas inlet of the venturi tube, the bottom washing oil outlet of the smoke washing tower is communicated with the washing oil inlet of the smoke washing tank, the top washing oil inlet of the smoke washing tower and the top inlet of the venturi tube are both communicated with the smoke washing outlet of the smoke washing pump, the smoke washing inlet of the smoke washing pump is communicated with the bottom washing oil outlet of the smoke washing tank, the bottom outlet of the venturi tube is communicated with the top venturi inlet of the smoke washing tank, the top flue gas outlet of the smoke washing tank is communicated with the flue gas inlet of the activated carbon box, the flue gas outlet of the activated carbon box is communicated with the induced draft inlet of the induced draft fan, and the induced draft outlet of the induced draft fan discharges the treated loading flue gas into the torch through an exhaust pipe.

[0013] Working principle: The loading flue gas enters the flue gas scrubbing tower through the bottom flue gas inlet of the scrubbing tower. The scrubbing oil enters the scrubbing tower through the top scrubbing oil inlet of the scrubbing tower by the scrubbing oil pump. The loading flue gas passes upward through the packing in the scrubbing tower and contacts the scrubbing oil falling from top to bottom in a countercurrent manner to complete the primary washing of the loading flue gas. Finally, the scrubbing oil exits from the bottom scrubbing oil outlet of the scrubbing tower and enters the scrubbing tank through the scrubbing oil inlet of the scrubbing tank. The loading flue gas finally enters the venturi tube from the top flue gas outlet of the scrubbing tower through the venturi flue gas inlet of the venturi tube. The scrubbing oil in the scrubbing tank enters the venturi tube through the top inlet of the venturi tube by the scrubbing oil pump and mixes with the loading flue gas, so that more hydrocarbons dissolve into the scrubbing oil for secondary washing, and the loading flue gas is brought into the scrubbing tank by the scrubbing oil. The flow rate of the mixture of the loading flue gas and the scrubbing oil entering the scrubbing tank slows down, so that the scrubbing oil separates from the gas phase due to its own weight and falls to the bottom of the scrubbing tank. The loading flue gas is discharged from the top flue gas outlet of the scrubbing tank and is sucked by the induced draft fan to the activated carbon box, and finally is adsorbed and treated by the activated carbon box and then discharged into the flare.

[0014] Further, an air release nozzle is provided on the exhaust pipeline, and an air release valve is arranged on the air release nozzle, which is convenient for discharging the flue gas emergently from the air release nozzle when the flare fails or is under maintenance.

[0015] Further, the scrubbing tower and the venturi tube are arranged side by side on the left and right above the scrubbing tank. The scrubbing oil inlet of the scrubbing tank is located at the top of the scrubbing tank. The bottom scrubbing oil outlet of the scrubbing tower is communicated with the scrubbing oil inlet of the scrubbing tank through a gravity flow pipe.

[0016] Further, the scrubbing tank is a horizontal scrubbing tank.

[0017] The beneficial effects produced by the present utility model are as follows: The loading flue gas collection and treatment device described in the present utility model effectively improves the flue gas treatment effect by successively washing the loading flue gas through the scrubbing tower and the venturi tube twice, and finally adsorbing and filtering through the activated carbon box and then discharging it to the flare for treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings here are incorporated into the specification and form a part of this specification, showing the embodiments that conform to the present utility model, and are used together with the specification to explain the principle of the present utility model.

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the accompanying drawings required for the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, without creative efforts, other accompanying drawings can also be obtained according to these accompanying drawings.

[0020] Figure 1 It is a schematic diagram of the overall structure of the present utility model.

[0021] In the figure: 1 - smoke scrubbing tower, 2 - Venturi tube, 3 - activated carbon box, 4 - smoke scrubbing tank, 5 - smoke scrubbing pump, 6 - induced draft fan. Detailed implementation manners

[0022] In order to more clearly understand the above-mentioned objects, features, and advantages of the present utility model, the solution of the present utility model will be further described below. It should be noted that, without conflict, the embodiments of the present utility model and the features in the embodiments can be combined with each other.

[0023] In the description, it should be noted that the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. It should be noted that unless otherwise clearly defined and limited, the terms "installed", "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, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific situations.

[0024] Many specific details are set forth in the following description in order to fully understand the present utility model, but the present utility model can also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0025] The specific embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

[0026] As Figure 1 shown, a device for collecting and treating the smoke of tar processing product loading vehicles includes:

[0027] A smoke scrubbing tower 1, which is provided with a bottom smoke inlet, a bottom washing oil outlet, a top smoke outlet, and a top washing oil inlet;

[0028] A Venturi tube 2, which is provided with a top inlet and a bottom outlet, and a Venturi smoke inlet is provided on the upper part of its side wall;

[0029] A smoke scrubbing pump 5, which is provided with a smoke scrubbing inlet and a smoke scrubbing outlet;

[0030] A smoke scrubbing tank 4, which is provided with a bottom washing oil outlet, a top smoke outlet, a washing oil inlet, and a top Venturi inlet;

[0031] An activated carbon box 3, which is provided with a smoke inlet and a smoke outlet;

[0032] An induced draft fan 6, which is provided with an induced draft inlet and an induced draft outlet;

[0033] The top flue gas outlet of the smoke scrubbing tower 1 is connected to the venturi flue gas inlet of the venturi tube 2. The bottom washing oil outlet of the smoke scrubbing tower 1 is connected to the washing oil inlet of the smoke washing tank 4. The top washing oil inlet of the smoke scrubbing tower 1 and the top inlet of the venturi tube 2 are both connected to the smoke washing outlet of the smoke washing pump 5. The smoke washing inlet of the smoke washing pump 5 is connected to the bottom washing oil outlet of the smoke washing tank 4. The bottom outlet of the venturi tube 2 is connected to the top venturi inlet of the smoke washing tank 4. The top flue gas outlet of the smoke washing tank 4 is connected to the flue gas inlet of the activated carbon box 3. The flue gas outlet of the activated carbon box 3 is connected to the air extraction inlet of the induced draft fan 6. The air extraction outlet of the induced draft fan 6 discharges the treated loading flue gas into the flare through the exhaust pipe.

[0034] Working principle: The loading flue gas enters the smoke scrubbing tower 1 through the bottom flue gas inlet of the smoke scrubbing tower 1. The washing oil enters the smoke scrubbing tower 1 from the top washing oil inlet of the smoke scrubbing tower 1 through the smoke washing pump 5. The loading flue gas passes upward through the packing in the smoke scrubbing tower 1 and contacts the washing oil falling from top to bottom in a countercurrent manner to complete the primary washing of the loading flue gas. Finally, the washing oil exits from the bottom washing oil outlet of the smoke scrubbing tower 1 and enters the smoke washing tank 4 through the washing oil inlet of the smoke washing tank 4. The loading flue gas finally enters the venturi tube 2 from the top flue gas outlet of the smoke scrubbing tower 1 and through the venturi flue gas inlet of the venturi tube 2. The washing oil in the smoke washing tank 4 enters and mixes with the loading flue gas through the top inlet of the venturi tube 2 by the smoke washing pump 5, so that more hydrocarbons dissolve into the washing oil for secondary washing, and the loading flue gas is brought into the smoke washing tank 4 by the washing oil. The flow rate of the mixture of the loading flue gas and the washing oil entering the smoke washing tank 4 slows down, causing the washing oil to separate from the gas phase due to its own weight and fall to the bottom of the smoke washing tank 4. The loading flue gas is then discharged from the top flue gas outlet of the smoke washing tank 4 and suctioned by the induced draft fan 6 to the activated carbon box 3, and finally discharged into the flare after being adsorbed and treated by the activated carbon box 3.

[0035] During specific implementation, an air release nozzle is provided on the exhaust pipe, and an air release valve is equipped on the air release nozzle, which is convenient for discharging the flue gas emergently from the air release nozzle when the flare fails or is under maintenance.

[0036] During specific implementation, the smoke scrubbing tower 1 and the venturi tube 2 are arranged side by side on the left and right above the smoke washing tank 4. The washing oil inlet of the smoke washing tank 4 is located at the top of the smoke washing tank 4. The bottom washing oil outlet of the smoke scrubbing tower 1 is connected to the washing oil inlet of the smoke washing tank 4 through a gravity flow pipe. In this specific implementation manner, the smoke washing tank 4 is a horizontal smoke washing tank 4.

[0037] The above are only specific implementation manners of the present utility model, enabling those skilled in the art to understand or implement the present utility model. Although detailed descriptions have been made with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments, and they should all be covered by the protection scope of the claims.

Claims

1. An apparatus for collecting and treating the loading flue gas of tar processing products, characterized in that Comprising: A smoke scrubbing tower (1) provided with a bottom flue gas inlet, a bottom wash oil outlet, a top flue gas outlet, and a top wash oil inlet; A Venturi tube (2) provided with a top inlet, a bottom outlet, and a Venturi flue gas inlet in the upper part of its side wall; A smoke scrubbing pump (5) provided with a smoke scrubbing inlet and a smoke scrubbing outlet; A smoke scrubbing tank (4) provided with a bottom wash oil outlet, a top flue gas outlet, a wash oil inlet, and a top Venturi inlet; An activated carbon box (3) provided with a flue gas inlet and a flue gas outlet; An induced draft fan (6) provided with an induced draft inlet and an induced draft outlet; The top flue gas outlet of the smoke scrubbing tower (1) is communicated with the Venturi flue gas inlet of the Venturi tube (2), the bottom wash oil outlet of the smoke scrubbing tower (1) is communicated with the wash oil inlet of the smoke scrubbing tank (4), the top wash oil inlet of the smoke scrubbing tower (1) and the top inlet of the Venturi tube (2) are both communicated with the smoke scrubbing outlet of the smoke scrubbing pump (5), the smoke scrubbing inlet of the smoke scrubbing pump (5) is communicated with the bottom wash oil outlet of the smoke scrubbing tank (4), the bottom outlet of the Venturi tube (2) is communicated with the top Venturi inlet of the smoke scrubbing tank (4), the top flue gas outlet of the smoke scrubbing tank (4) is communicated with the flue gas inlet of the activated carbon box (3), the flue gas outlet of the activated carbon box (3) is communicated with the induced draft inlet of the induced draft fan (6), and the induced draft outlet of the induced draft fan (6) discharges the treated loading smoke through an exhaust pipe into the flare.

2. The device for collecting and treating the loading flue gas of a tar processing product according to claim 1, characterized in that, An air vent nozzle is provided on the exhaust pipe, and an air vent valve is arranged on the air vent nozzle.

3. The device for collecting and treating the loading flue gas of tar processing products according to claim 2, characterized in that, The smoke scrubbing tower (1) and the Venturi tube (2) are arranged side by side on the left and right above the smoke scrubbing tank (4), the wash oil inlet of the smoke scrubbing tank (4) is located at the top of the smoke scrubbing tank (4), and the bottom wash oil outlet of the smoke scrubbing tower (1) is communicated with the wash oil inlet of the smoke scrubbing tank (4) through a gravity flow pipe.

4. The device for collecting and treating the loading flue gas of a tar processing product according to claim 3, characterized in that, The smoke scrubbing tank (4) is a horizontal smoke scrubbing tank (4).

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