Oil sludge thermal desorption tail gas treatment device

Abstract

The utility model discloses an oil sludge thermal desorption tail gas treatment device which is characterized in that a treatment device main body is of a cubic structure, a plurality of groups of fixing rods are arranged in a filler layer, a plurality of rotatable hollow spheres are fixed on the fixing rods through limiting plates, the bottom of the treatment device main body is of a cone structure, and an annular pipeline is arranged on the cone structure; according to the flue gas treatment device, contact of gas and solid is better achieved, the flue gas treatment effect is improved, the flue gas inlet pipeline extends into equipment for the stability of flue gas inlet, flue gas is dispersed around the flue gas inlet pipeline in a distributed mode, the stability of flue gas exhaust is improved, and the flue gas treatment effect is improved. And the flue gas treatment capacity is further improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to oil sludge tail gas treatment technical field especially relates to an oil sludge thermal desorption tail gas treatment device. BACKGROUND

[0002] At present, the research on the remediation technology of oil-contaminated soil has become a new hotspot in the field of environmental research. Among them, the thermal desorption treatment technology is widely used in oil-contaminated soil because of its fast treatment speed, high oil removal efficiency, small land occupation and other advantages. After pyrolysis, oil sludge will produce volatile matter. After condensation separation and recovery of oil, some non-condensable gas with a boiling point lower than room temperature will be left. Non-condensable gas contains inorganic pollutants and a small amount of organic pollutants. Inorganic pollutants such as dust, SO 2, NO x, H 2 S, etc. Organic pollutants include low-boiling-point organic matter such as short-chain aldehyde, alcohol, acid, and phenol (4-hydroxy 3-methyl-n-butyl aldehyde, acetic acid, butyric acid, styrene, 4-methyl-hexyl aldehyde, benzaldehyde, 3-methyl phenol). These non-condensable gases do not need to be treated by complex tail gas treatment, but only need to be treated by desulfurization and acid removal and catalytic oxidation to meet the emission standard. At present, there is little research on the treatment of non-condensable gas, and the traditional tail gas treatment method is used to treat non-condensable gas. The traditional tail gas treatment method has many links, the treatment process is complex, and the treatment cost is high, which is not suitable for the treatment of non-condensable gas.

[0003] For example, the patent with the publication number CN1134587409A discloses a system for treating non-condensable tail gas after oil sludge thermal desorption. The system describes how to treat non-condensable gas and the equipment, but the degree of pickling is not perfect during use, and there is room for improvement of the equipment. Based on the design scheme of the patent, a better oil sludge thermal desorption tail gas treatment device is designed. UTILITY MODEL CONTENT

[0004] To solve the problems in the prior art, the utility model provides an oil sludge thermal desorption tail gas treatment device which better realizes the contact between gas and solid, improves the effect of flue gas treatment, and improves the stability of smoke exhaust by extending the smoke inlet pipeline into the equipment and distributing the smoke around, thereby further improving the flue gas treatment capacity.

[0005] In order to achieve the above object, the utility model provides the following technical scheme: an oil sludge thermal desorption tail gas treatment device, including treatment device main part, a group of packing layers are equipped in the treatment device main part, the treatment device main part bottom and top are equipped with smoke inlet pipe and smoke outlet pipe respectively, the treatment device main part top is equipped with spray pipe, and the spray pipe bottom evenly distributes and has the spray head, the treatment device main part bottom is equipped with lye outlet, the lye outlet and spray pipe between are equipped with circulating lye tank and automatic alkali adding device, and circulating lye tank and automatic alkali adding device are connected with lye outlet and spray pipe through communication pipeline and pump body, the treatment device main part is the square structure, and the packing layer inside is equipped with a plurality of fixed rods, and a plurality of hollow spheres that can rotate are fixed on the fixed rod through the limiting plate, the treatment device main part bottom is the vertebral body structure, and the vertebral body structure is equipped with annular pipeline, and is equipped with smoke outlet on the annular pipeline, the annular pipeline connects smoke inlet pipe.

[0006] Preferably, the spray pipe is arranged in the middle of the fixed rod, which facilitates direct and rapid contact with the smoke body.

[0007] Compared with the prior art, the utility model has the beneficial effects that:

[0008] Better realize the contact of gas and solid, improve the effect of flue gas treatment, in order to the stability of smoke, make smoke inlet pipe into the equipment inside, pass through the distributed smoke of surrounding, improve the stability of smoke exhaust, further improve the treatment capacity of flue gas. BRIEF DESCRIPTION OF DRAWINGS

[0009] Fig. 1 It is the structure schematic view of the utility model.

[0010] Fig. 2 It is the overhead structure schematic view of the utility model.

[0011] Fig. 3 It is the annular pipeline structure schematic view of the utility model.

[0012] In the drawing: 1 treatment device main part, 2 packing layer, 3 spray pipe, 4 spray head, 5 smoke inlet pipe, 6 smoke outlet pipe, 7 communication pipeline, 8 pump body, 9 circulating lye tank, 10 automatic alkali adding device, 11 vertebral body structure, 12 lye outlet, 21 hollow sphere, 22 limiting plate, 23 fixed rod, 51 annular pipeline, 52 smoke outlet. DETAILED DESCRIPTION

[0013] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0014] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. Embodiment

[0015] Referring to the drawings Figs. 1-3 As shown in the drawings, an oil sludge thermal desorption tail gas treatment device includes a treatment device main body 1, a group of filler layers 2 is arranged inside the treatment device main body 1, an inlet smoke pipe 5 and an outlet smoke pipe 6 are arranged at the bottom and top of the treatment device main body 1 respectively, a spray pipe 3 is arranged at the top of the treatment device main body 1, and a plurality of spray heads 4 are uniformly distributed at the bottom of the spray pipe 3, an alkali liquor outlet 12 is arranged at the bottom of the treatment device main body 1, a circulating alkali liquor tank 9 and an automatic alkali adding device 10 are arranged between the alkali liquor outlet 12 and the spray pipe 3, and the circulating alkali liquor tank 9 and the automatic alkali adding device 10 are connected with the alkali liquor outlet 12 and the spray pipe 3 through a communication pipe 7 and a pump body 8, the treatment device main body 1 is a square structure, a plurality of fixed rods 23 are arranged inside the filler layers 2, a plurality of hollow spheres 21 that can rotate are fixed on the fixed rods 23 through limiting plates 22, the bottom of the treatment device main body 1 is a conical structure 11, an annular pipe 51 is arranged on the conical structure 11, a smoke outlet 52 is arranged on the annular pipe 51, and the annular pipe 51 is connected with the inlet smoke pipe 5.

[0016] Preferably, the spray pipe 3 is arranged in the middle of the fixed rod 23, so as to directly and quickly contact the smoke body.

[0017] Working principle: Compared with the prior art, the biggest change of the present scheme is that the equipment inside the filler layer 2 is improved, the spheres are connected through the fixed rods and the limiting plates, and can rotate under the action of the smoke, so that the contact between the gas and the solid can be better realized, and the effect of smoke treatment can be improved. In addition, the fixed rods can also be controlled by a motor to slowly rotate, so that self-rotation can be realized. In addition, in order to improve the stability of the smoke inlet, the inlet smoke pipe is inserted into the equipment, and the smoke is distributed around to improve the stability of smoke exhaust, and further improve the treatment capacity of the smoke.

[0018] The basic principle and main features of the present application and the advantages of the present application are shown and described above. It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and the present application can be implemented in other specific forms without departing from the spirit or basic features of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims should be included in the present application, and any reference signs in the claims should not be regarded as limiting the claims.

[0019] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description manner of the specification is only for the sake of clarity, those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. An oil sludge thermal desorption tail gas treatment device, comprising a treatment device body, a group of filler layers are arranged inside the treatment device body, a smoke inlet pipe and a smoke outlet pipe are arranged at the bottom and top of the treatment device body respectively, a spray pipe is arranged at the top of the treatment device body, and a plurality of spray heads are uniformly distributed at the bottom of the spray pipe, an alkali liquor outlet is arranged at the bottom of the treatment device body, a circulating alkali liquor tank and an automatic alkali adding device are arranged between the alkali liquor outlet and the spray pipe, and the circulating alkali liquor tank and the automatic alkali adding device are connected with the alkali liquor outlet and the spray pipe through a communication pipe and a pump body, characterized in that: The processing device body is a cuboid structure, and a plurality of groups of fixed rods are arranged in the filler layer, and a plurality of rotatable hollow spheres are fixed on the fixed rods through limiting plates, the bottom of the processing device body is a conical body structure, and an annular pipeline is arranged on the conical body structure, and a smoke exhaust port is arranged on the annular pipeline, and the annular pipeline is connected with a smoke inlet pipeline.

2. The oil sludge thermal desorption tail gas treatment device according to claim 1, characterized in that: The spraying pipe is arranged in the middle of the fixed rod, and the spraying pipe is directly and quickly contacted with the smoke body.

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